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US3119475A - Ceiling grid system - Google Patents

Ceiling grid system Download PDF

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Publication number
US3119475A
US3119475A US159410A US15941061A US3119475A US 3119475 A US3119475 A US 3119475A US 159410 A US159410 A US 159410A US 15941061 A US15941061 A US 15941061A US 3119475 A US3119475 A US 3119475A
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US
United States
Prior art keywords
grid
grid members
cross
members
main
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US159410A
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English (en)
Inventor
George C Adams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rollform Inc
Original Assignee
Rollform Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DENDAT1251502D priority Critical patent/DE1251502B/de
Application filed by Rollform Inc filed Critical Rollform Inc
Priority to US159410A priority patent/US3119475A/en
Priority to FR918400A priority patent/FR1340782A/fr
Application granted granted Critical
Publication of US3119475A publication Critical patent/US3119475A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/065—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section
    • E04B9/067—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section with inverted T-shaped cross-section
    • E04B9/068—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section with inverted T-shaped cross-section with double web
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/08—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members having the capability of expansion, e.g. in case of fire
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/10—Connections between parallel members of the supporting construction
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/12—Connections between non-parallel members of the supporting construction
    • E04B9/122—Connections between non-parallel members of the supporting construction one member passing through the other member, both members laying at least partly in the same plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S52/00—Static structures, e.g. buildings
    • Y10S52/05—Designed for thermal distortion

Definitions

  • This invention relates generally to acoustical ceilings and more particularly to a grid system for an acoustical ceiling that maintains its integrity upon the occurrence of a relatively high ambient temperature condition.
  • Acoustical ceilings are often suspended from the conventional ceiling or overhead structure of an enclosure to provide an aesthetically pleasing and acoustically superior ceiling for the enclosure.
  • acoustical ceilings are generally made up of a plurality of acoustical panels that are supported by a rigid grid system comprising a plurality of interlocking elongated grid members arranged in generally normal relation to one another.
  • a grid system is disclosed in application Serial No. 772,042 assigned to the assignee of the present invention.
  • any buckling of the grid system may tilt or dislodge the acoustical panels from the supporting grid members, creating gaps in the acoustical ceiling. Buckling of the grid system often occurs due to longitudinal expansion of the grid members upon the occurrence of relatively high ambient temperatures due to, for example, a fire in the space underlying the acoustical ceiling, which thereupon exposes the conventional ceiling or overhead structure of the enclosure to the conflagration in the underlying space.
  • acoustical ceilings are required to be, in effect, fire barriers between the floor area or underlying space and the conventional ceiling of the room.
  • the acoustical ceiling of the present invention offers a solution to the problem of buckling of the grid system by accommodating longitudinal expansion of the grid members due to a relatively high temperature condition. Provision is made for longitudinal expansion of the grid members with respect to one another without disrupting the spacing between parallel ones of the grid members. Therefore, buckling of the grid system, with its inherent displacement of the acoustical panels, is precluded.
  • longitudinal expansion of the grid members is accommodated by a plurality of fusible shear links that normally rigidly maintain the spaced relationship between respective ones of the grid members but which, upon the occurrence of heat-induced expansion, shear or fuse to permit the grid members to move toward one another thereby to accommodate longitudinal expansion.
  • the fusible shear links are easily engageable with the grid members making up the grid system, thereby to provide a ceiling construction that is relatively inexpensive and easy to install, yet maintains its integrity under relatively high ambient temperature conditions.
  • longitudinal expansion of the grid members is accommodated by a novel resilient finger.
  • Novel cover plates underlie the junction of the grid members in a manner that renders the junction aesthetically pleasing and insures the structural integrity of the grid system upon expansion.
  • one object of the present invention is an improved acoustical ceiling construction.
  • Another object is an acoustical ceiling construction that provides a positive fire barrier between the floor and ceiling of a room.
  • Another object is an acoustical ceiling construction that accommodates longitudinal expansion of the grid members of an acoustical ceiling grid system.
  • Another object is a supporting grid for acoustical panels that maintains its structural integrity under relatively high ambient temperature conditions.
  • Another object is an acoustical ceiling construction that includes a fusible shear link that permits expansion and relative movement of the members forming the supporting grid system for the acoustical panels without varying the relative spacing therebetween.
  • Another object is an improved cover plate for the junction of the grid members of an acoustical ceiling.
  • Another object is a cover plate having close-fitting side flanges that strengthen the entire grid structure of an acoustical ceiling.
  • Another object is a cover plate having side flanges that overlap and conceal the side edges of the grid members at the junction thereof.
  • Another object is a cover plate that protects joints between the grid members of an acoustical ceiling against fire.
  • Another object is a cover plate that holds the cross grid members on opposite sides of a main grid member exactly in alignment with each other and thus contributes to the speed with which the ceiling grid system can be assembled.
  • Another object is a grid system for an acoustical ceiling that is retained in a rigid condition by resilient fingers on splicer elements.
  • FIGURE 1 is a fragmentary perspective view of a grid system for the support of the acoustical panels of an acoustical ceiling;
  • FIG. 2 is a fragmentary perspective view of the juncture of a pair of cross grid members with a main grid member;
  • FIG. 3 is a cross-sectional view taken substantially alon the line 33 of FIG. 2;
  • FIG. 4 is a cross-sectional view taken substantially along the line 4-4 of FIG. 3;
  • FIG. 5 is a cross-sectional view taken substantially along the line 5-5 of FIG. 3;
  • FIG. 6 is a cross-sectional View taken substantially along the line 66 of FIG. 2;
  • FIG. 7 is a view taken substantially in the direction of the arrow 7 of FIG. 2;
  • FIG. 8 is a perspective view of the fusible shear link
  • FIG. 9 is a fragmentary perspective view of the cover plate for the junction of the grid members.
  • FIG. 10 is a view of a junction between modified main and splicer members
  • FIG. 1'1 is a view in the direction of the arrow 11 in FIG. 10;
  • FIG. 12 is a view taken substantially along the line 1212 of FIG. 10, and enlarged for clarity;
  • FIG. 13 is a side elevational view of a modified fusible element
  • FIG. 14 is a cross-sectional view taken substantially along the line 1414 of FIG. 13.
  • a grid system 10 for an acoustical ceiling, comprises a plurality of parallel spaced-apart main grid members 12, of generally inverted T-shaped vertical cross section defined by a vertical flange 14 and horizontal flanges 18 and 20.
  • a plurality of cross grid members 34 having a generally inverted T-shaped vertical cross section defined by a verticalflange 32 and horizontal flanges 34 and 36, extend transversely between spaced ones of the main grid members 12.
  • the cross grid members 36 may also extend transversely between spaced ones of the cross grid members halfway between and parallel to the main grid members 12 thereby to orientate the grid system 16 into an aesthetically pleasing pattern comprising a plurality of generally rectangular spaces for the acceptance of conventional rectangular acoustical panels 40.
  • the acoustical panels are supported on the horizontal flanges 18 and 20 of the main grid members 12 and on the flanges 34 and 36 of the cross grid members 30.
  • the panels 46 normally are restrained against excessive horizontal movement by the vertical flanges 14 and 32 of the grid members 12 and 3t), respectively.
  • the entire grid system 10 may be supported from a ceiling or other suitable structure (not shown), by a plurality of wire hangers 59, the lower ends of which are attached to the vertical flanges 14 of the main grid members 12.
  • each cross member 30 has a tab 64 extending from the upper half of the vertical flange 32 at one end 60 thereof, and a tab 66 extending from the lower portion of the vertical flange 32 at the opposite end 62 thereof.
  • the main grid member 12 has a plurality of spaced pairs of vertically orientated slots 70 and 72 therein (FIG. 2) for the acceptance of the tabs 64 and 66, respectively, on the cross grid members 30.
  • the tabs 64 and 66 are provided with longitudinally extending slots and 82, respectively, for the acceptance of a pair of resilient locking pins 34 and 86, respectively, on opposite sides of the vertical flange 14 of the main grid member 12, thereby to position and resiliently lock the tabs '64 and 66 against retraction out of the slots 79 and 72.
  • shear links are inserted into the slots 80 and 82 on the opposite side of the vertical flange 14 and opposite the pins 84 and 86, respectively so that the flange 14 is confined in each instance between a shear link and a pin.
  • the shear links 90 be made from any material that melts or otherwise disintegrates under fire conditions in use.
  • the material from which the links are formed should preferably melt within the range 225325 F.
  • Many plastic resin materials are satisfactory for this purpose, and polyethylene is a typical example of such a material.
  • the shear links 90 are of T -shaped vertical cross section defined by a vertical portion 92 and a horizontal portion 94, the portion 94 having a locking shoulder 95 thereon that is engageable with the area adjacent the slot accepting the link 90.
  • fusible shear links 91 normally define rigid stops that dictate the limit of movement of the tabs 64 and 66 through the slots 70 and 72, respectively, the tabs 64 and 66 being positively lockable within the slots 76 and 72 by the resilient pins 84 and 86 in the slots 80 and 82 on the opposite side of the flange 14. It is to be noted that the flanges 34 and 36 of the cross grid members 30 are relieved by cutouts '76 and 78 to provide for subsequent movement of the cross grid members 30 toward the main grid member 12, as will be described.
  • the fusible shear links 90 soften and melt, thereby to accommodate longitudinal expansion of the cross grid members 30 by permitting movement of the tabs 64 and 66 through the slots 70 and 72 in the flange 14 of the main grid member 12.
  • longitudinal expansion of the cross grid members 30 is accommodated without varying the spacing between the main grid members 12 or causing the grid system 10 to buckel.
  • the splicer 22 has a dished center portion in alignment with the vertical flange 14 of the main grid members 12.
  • the dished portion 100 has a pair of slots 192 and 104 therein for the acceptance of the tabs 64 and 66 on the end portions 60 and 62 of the cross grid members 30.
  • the tabs 64 and 66 are retained within the slots 102 and 104 in a manner similar to their retention within corresponding slots 70 and 72 in the flange 14 of the main grid members 12, described hereinbefore.
  • the splicer element 22 has a plurality of horizontally extending foldable tabs 110, 111 and 112 at one end 113 thereof and a like plurality of foldable tabs 114, 115 and 116 at the other end 117 thereof that are accepted in complementary slots 12%, 121 and 122 in the opposite end portions of the main grid members 12.
  • end portions 124, 125 and 126 of the tabs 110, 111 and 112 are folded to a vertical position, as by gripping the end portions 124, 125 and 126 with the jaws of a pliers and twisting thereby to preclude lateral disassociation of the splicer element 22 from the main grid member 12.
  • the cover plate 150 has four normally orientated leg pontions 152, 154, 156 and 158. As best seen in FIG. 9, the leg portions 152, 154, 156 and 158 have opposite edge flanges 160-162, 164-166, 168170, and 172 174, respectively, that extend upwardly to receive and guide the flange portions 1 820 and 3436 of the main and cross grid members 12 and 30, respectively. Suitable foldable tabs retain the plate 150 in juxtaposed but slidablle relation with the grid members 12 and 30.
  • the flanges 160 through 174 on the plate 150 maintain the cross members '30 and main grid members 12 in normal relationship despite relative longitudinal expansion and movement thereof, even after the fusible links 90 have sheared or melted.
  • the plate 150 gives the grid system 10 an aesthetically pleasing appearance from the floor area underlying the acoustical ceiling, yet retains the members 12 :and 30 upon relative movement thereof with respect to one another and with respect to the cover plate 150.
  • a splicer member 222 In a modified embodiment of the present invention, shown in FIGS. 10, 11 and 12, longitudinal expansion of a main grid member 220 is accommodated by a splicer member 222.
  • the splicer 222 has a dished center portion 224 in alignment with :a vertical flange 226 of the main grid member 220.
  • the dished portion 224 of the splicer 222 "has a pair of slots 228 and 230' therein for the acceptance of complementary tabs 64 and 66 on the end por tions 60 and 62 of the cross grid members 30.
  • the tabs 64 and 66 are retained within the slots 228 and 230 in a manner similar to their retention within corresponding slots 70 and 72 in the flange 14 of the main grid members 12, as described hereinbefore.
  • the splicer element 222 has a plurality of horizontally extending foldable tabs 240, 242 and 244 at one end 246 thereof and a like plurality of foldable tabs 248, 250 and 252 at the other end 254 thereof that are accepted in complementary slots 260', 262, and 264 in the opposite end portions of the main grid members 226, one of which is shown.
  • end portions 266, 268 and 270 of the tabs 248, 250 and 252 are folded to a vertical position, as by twisting with a pliers, to preclude lateral disassociation of the splicer element 222 from the main grid member 220.
  • relative longitudinal movement between the splicer 222 and main grid member 220 is normally precluded by a finger 280 having an end portion 282 that extends through the complementary slot 264 in the grid member 220.
  • a finger 280 having an end portion 282 that extends through the complementary slot 264 in the grid member 220.
  • a modified fusible shear element 300' is of C-shaped vertical crosssection so as to be acceptable on a complementary end portion 302 of a grid member 304.
  • the end portion 302 has upper and lower shoulders 306 and 308 that normally position the fusible shear element 306 with respect to an aperture 310.
  • the shear element 300* melts or shears, permitting movement of the grid member 304 toward the grid member 12, as discussed hereinbefore.
  • the fusible element 300 is similar in function to the element 90, since it normally maintains the spaced relationship between the main and cross grid members but allows relative movement therebetween upon the occurrence of a high ambient temperature condition.
  • the ceiling grid system of the present invention features main and cross grid members that are spaced apart at the ends and normally retained in this position.
  • the means for normally retaining the spaced relationship of the end portion of the grid members permits release there of upon the occurrence of an ambient temperature condition sufficiently high to cause substantial longitudinal expansion of the grid members.
  • the spaced ends at the intersections of the grid members are closed by a cover plate of novel construction.
  • the cover plate has upturned flanges which embrace the bottom edges of the main and cross grid members.
  • the tabs on the flanges are adapted to be bent over the bottom flanges of the grid members to fasten the cover plate to the grid members.
  • the cover plate is in the form of a cross where there are cross g'nid members on each side of the main grid member, as is the case in the middle of the ceiling, or it can be in the form of a T for use where there is only one cross grid member at one side of the main grid member as in certain pattern arrangements in the middle of the ceiling and at the edge of the ceiling.
  • the edge flanges of the cover plate extend around a radius between the arms thereof to strengthen and thicken the same, although the plate itself may be made of relatively thin metal.
  • the plate is the same color as the bottoms of the frame members so that the exposed edges of the cover plate make a barely discernible line on the grid members.
  • the cover plate holds the main grid members and the cross grid members exactly perpendicular to each other. This relationship is maintained because the side flanges of the cover plate lit the bottom flanges of the grid members relatively snugly and they therefore guide and control the location and position of the grid members.
  • the cover plates cover the exposed and open joints between the frame members.
  • a grid system for an acoustical ceiling comprising a plurality of main grid members, a plurality of cross grid members, said main grid members having spaced apertures therethrough, said cross grid members extending generally normally with respect to said main grid members and having portions projecting longitudinally therefrom through the apertures in said main grid members, respectively, locking mean extending through the projecting portions on said cross grid members, respectively, on the opposite side of sm'd main grid members from said cross grid members to prevent relative movement of said main and cross grid members away from one another, and a plurality of fusible shear links extending through said cross grid members and engageable with said main grid members on the opposite side thereof (from said looking means, respectively, said shear links normally limiting relative movement of said cross grid members toward said main grid members, said fusible shear linl s accommodating longitudinal expansion of said cross grid mernlbers upon the occurrence of a predetermined temperature condition by permitting relative movement of said cross grid members toward said main grid members, respectively.
  • a main grid member having a vertical web portion with a slot therein, a cross grid member'extending substantially perpendicularly of said main grid member, said cross grid member having a longitudinal tab extending through said slot, a flexible and resilient tension member extending transversely through the tab on the opposite side of said main grid member from said cross grid member to draw the cross grid member toward said main grid memlber under normal conditions, and a fusible shear element extending through said cross grid on the opposite side of said main grid member from said tension member to normally restrain movement of said cross grid member toward said main grid member.
  • a main frame member including a laterally extending base portion and a vertical web portion having slot means therein, a pair of cross frame members at opposite sides of and extending substantially perpendicularly to said main frame member, said cross frame members including horizontal base portions and vertical web portions having longitudinal tabs extend-ing in opposite directions through said slot means, fusible shear elements associated with said cross frame members butting against said main frame member at opposite sides thereof, means for normally drawing said cross members and shear links toward said main frame member, and a cover plate having normally orientated leg portions with upstanding flanges along opposite edge portions thereof, respectively, said flange portions engaging the base portions of said main and cross grid members to maintain said main and cross members in normal orientation upon relative movement of said cross grid member towardsaid main grid member upon fusion of said shear element.
  • a main grid member having a vertical Web portion with aslot therein, a cross grid memberextending substantially perpendicularly of said main grid member, said cross grid member having a longitudinal ta b extending through said slot, a flexible and resilient tension member extending transversely through the tab on the opposite side of said main grid member from said cross grid member to draw the cross grid member toward said main grid member under normal conditions, and heat responsive means on the opposite side of said main grid member from said tension member for normally restraining movement of said cross grid member toward said main grid member but permitting movement of said cross grid member toward said main grid member upon the occurrenoe of a relatively high temperature condition.
  • a main frame member including a Web portion having slot means therein, a cross frame member extending substantially perpendicularlyto said main rfirame member, said cross frame member having a longitudinal tab extending through said slot means, the improvement comprising a generally 'C- sha ped fusible shear element disposed about the tab on said cross frame member butting against said main frame member, and means :for normally drawing said cross member and shear element toward said main frame member, said shear element providing for movement of said cross grid member toward said main grid member upon fusion thereof.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
US159410A 1961-12-14 1961-12-14 Ceiling grid system Expired - Lifetime US3119475A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DENDAT1251502D DE1251502B (de) 1961-12-14
US159410A US3119475A (en) 1961-12-14 1961-12-14 Ceiling grid system
FR918400A FR1340782A (fr) 1961-12-14 1962-12-12 Armature quadrillée pour plafond acoustique dans laquelle on rend possible la dilatation thermique de ladite armature

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Application Number Priority Date Filing Date Title
US159410A US3119475A (en) 1961-12-14 1961-12-14 Ceiling grid system

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US3119475A true US3119475A (en) 1964-01-28

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189138A (en) * 1961-10-24 1965-06-15 Eastern Prod Corp Ceiling construction
US3270479A (en) * 1963-08-09 1966-09-06 Roger N Weinar Suspension grid system for a ceiling construction
US3275817A (en) * 1964-08-26 1966-09-27 Robert A D Schwartz Framework structures for suspended ceiling and lighting systems
US3286427A (en) * 1963-07-31 1966-11-22 Hastings Aluminum Products Inc Ceiling structure
US3294428A (en) * 1963-08-07 1966-12-27 Lickliter Expansion joint and locking connection for supporting grid systems
US3321879A (en) * 1964-08-05 1967-05-30 W J Haertel & Co Ceiling support structure with collapsible joint clip
US3343309A (en) * 1965-06-08 1967-09-26 Integrated Systems Inc Coved ceiling assembly and bracket means therefor
FR2123249A1 (de) * 1971-01-14 1972-09-08 Illinois Tool Works
US3712016A (en) * 1970-01-01 1973-01-23 Silent Channel Prod Ltd Method for sealing grooves in structure concrete sealing
US3774366A (en) * 1970-11-17 1973-11-27 W Baker Box beam structures and connections for beam-supported structures
US4043689A (en) * 1972-01-27 1977-08-23 Trend Ceilings Systems Co. Modular ceiling system
US4115970A (en) * 1977-09-01 1978-09-26 Ceiling Resurfacing Systems, Inc. Grid ceiling trim intersection cap
US4850172A (en) * 1986-04-25 1989-07-25 Alcan Aluminum Corporation Ceiling or like structural system and splice member therefor
US4916877A (en) * 1988-11-10 1990-04-17 National Rolling Mills, Inc. Fire strip construction
US6029413A (en) * 1998-10-14 2000-02-29 Compas, Jr.; Albert W. Dropped ceiling support frame
US6748713B2 (en) 2002-10-02 2004-06-15 Tosser J. See Suspended ceiling construction
US20060260244A1 (en) * 2005-05-17 2006-11-23 Worthington Armstrong Venture Hook connector with plastic fire relief
WO2012056127A1 (fr) * 2010-10-29 2012-05-03 Plafometal Connecteur pour ossature métallique de plafond suspendu et plafond l'utilisant
US8490341B2 (en) 2010-09-09 2013-07-23 Michael Hatzinikolas Self-releasing structural assembly
US8955263B2 (en) 2011-05-02 2015-02-17 Fero Corporation Break away firewall connection system and a method for construction
US9234344B2 (en) 2012-02-28 2016-01-12 Michael Hatzinikolas Self-releasing structural assembly
IT201600099509A1 (it) * 2016-10-04 2018-04-04 Atena Spa Staffa di collegamento e supporto
US20230250636A1 (en) * 2020-04-30 2023-08-10 Arktura Llc Architectural fixture connection system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1079862A (en) * 1911-12-14 1913-11-25 William R Kinnear Fireproof window construction.
US2148310A (en) * 1937-03-04 1939-02-21 Security Fire Door Company Guide shoe for elevator doors
US2540603A (en) * 1943-01-25 1951-02-06 Leon F Urbain Clip construction for means for assembling constructional units
US2829743A (en) * 1953-03-26 1958-04-08 Reynolds Metals Co Splice for structural beams and the like
US2909957A (en) * 1956-04-26 1959-10-27 Illinois Tool Works Resilient plastic fastener with strut supported legs
US3013644A (en) * 1956-12-24 1961-12-19 Luminous Ceilings Inc V-track ceiling structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1079862A (en) * 1911-12-14 1913-11-25 William R Kinnear Fireproof window construction.
US2148310A (en) * 1937-03-04 1939-02-21 Security Fire Door Company Guide shoe for elevator doors
US2540603A (en) * 1943-01-25 1951-02-06 Leon F Urbain Clip construction for means for assembling constructional units
US2829743A (en) * 1953-03-26 1958-04-08 Reynolds Metals Co Splice for structural beams and the like
US2909957A (en) * 1956-04-26 1959-10-27 Illinois Tool Works Resilient plastic fastener with strut supported legs
US3013644A (en) * 1956-12-24 1961-12-19 Luminous Ceilings Inc V-track ceiling structure

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189138A (en) * 1961-10-24 1965-06-15 Eastern Prod Corp Ceiling construction
US3286427A (en) * 1963-07-31 1966-11-22 Hastings Aluminum Products Inc Ceiling structure
US3294428A (en) * 1963-08-07 1966-12-27 Lickliter Expansion joint and locking connection for supporting grid systems
US3270479A (en) * 1963-08-09 1966-09-06 Roger N Weinar Suspension grid system for a ceiling construction
US3321879A (en) * 1964-08-05 1967-05-30 W J Haertel & Co Ceiling support structure with collapsible joint clip
US3275817A (en) * 1964-08-26 1966-09-27 Robert A D Schwartz Framework structures for suspended ceiling and lighting systems
US3343309A (en) * 1965-06-08 1967-09-26 Integrated Systems Inc Coved ceiling assembly and bracket means therefor
US3712016A (en) * 1970-01-01 1973-01-23 Silent Channel Prod Ltd Method for sealing grooves in structure concrete sealing
US3774366A (en) * 1970-11-17 1973-11-27 W Baker Box beam structures and connections for beam-supported structures
FR2123249A1 (de) * 1971-01-14 1972-09-08 Illinois Tool Works
US4043689A (en) * 1972-01-27 1977-08-23 Trend Ceilings Systems Co. Modular ceiling system
US4115970A (en) * 1977-09-01 1978-09-26 Ceiling Resurfacing Systems, Inc. Grid ceiling trim intersection cap
US4850172A (en) * 1986-04-25 1989-07-25 Alcan Aluminum Corporation Ceiling or like structural system and splice member therefor
US4916877A (en) * 1988-11-10 1990-04-17 National Rolling Mills, Inc. Fire strip construction
US6029413A (en) * 1998-10-14 2000-02-29 Compas, Jr.; Albert W. Dropped ceiling support frame
US6748713B2 (en) 2002-10-02 2004-06-15 Tosser J. See Suspended ceiling construction
US20060260244A1 (en) * 2005-05-17 2006-11-23 Worthington Armstrong Venture Hook connector with plastic fire relief
US7520095B2 (en) 2005-05-17 2009-04-21 Worthington Armstrong Venture Hook connector with plastic fire relief
US8490341B2 (en) 2010-09-09 2013-07-23 Michael Hatzinikolas Self-releasing structural assembly
EA026310B1 (ru) * 2010-10-29 2017-03-31 Плафометаль Соединитель для металлического каркаса подвесного потолка и соответствующий потолок
FR2966850A1 (fr) * 2010-10-29 2012-05-04 Plafometal Connecteur pour ossature metallique de plafond suspendu et plafond l'utilisant.
US9315991B2 (en) 2010-10-29 2016-04-19 Plafometal Connector for suspended metal ceiling framework and ceiling employing same
WO2012056127A1 (fr) * 2010-10-29 2012-05-03 Plafometal Connecteur pour ossature métallique de plafond suspendu et plafond l'utilisant
US9745745B2 (en) 2010-10-29 2017-08-29 Plafometal Ceiling framework
US8955263B2 (en) 2011-05-02 2015-02-17 Fero Corporation Break away firewall connection system and a method for construction
US9234344B2 (en) 2012-02-28 2016-01-12 Michael Hatzinikolas Self-releasing structural assembly
IT201600099509A1 (it) * 2016-10-04 2018-04-04 Atena Spa Staffa di collegamento e supporto
EP3306006A1 (de) 2016-10-04 2018-04-11 ATENA S.p.A. Verbindungs- und stützbügel
US20230250636A1 (en) * 2020-04-30 2023-08-10 Arktura Llc Architectural fixture connection system

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