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US20050077108A1 - Horizontal support member for tube and clamp scaffold assembly - Google Patents

Horizontal support member for tube and clamp scaffold assembly Download PDF

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Publication number
US20050077108A1
US20050077108A1 US10/770,844 US77084404A US2005077108A1 US 20050077108 A1 US20050077108 A1 US 20050077108A1 US 77084404 A US77084404 A US 77084404A US 2005077108 A1 US2005077108 A1 US 2005077108A1
Authority
US
United States
Prior art keywords
clamp
scaffold
brace
tube
support member
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.)
Abandoned
Application number
US10/770,844
Other languages
English (en)
Inventor
Porfirio Simoes
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of US20050077108A1 publication Critical patent/US20050077108A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/02—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means
    • E04G1/04—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section
    • E04G1/06—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section comprising members with rod-like or tubular portions fitting together end to end, with or without separate connecting pieces
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/16—Struts or stiffening rods, e.g. diagonal rods
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/22—Stiff scaffolding clamps for connecting scaffold members of common shape for scaffold members in end-to-side relation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
    • E04G7/303—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are only fixed at one of the bars or members to connect
    • E04G7/305—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are only fixed at one of the bars or members to connect without tying means for connecting the bars or members

Definitions

  • the present invention is concerned with horizontal support members for tube and clamp scaffold systems.
  • Scaffold systems are temporary structures typically constructed to provide safe access to a building or structure during the construction phase of the building or structure or when major service is required.
  • a scaffold system provides a safe work platform for workers once assembled.
  • FIG. 1 illustrates an example of a prior art tube and clamp scaffold system.
  • Tube and clamp scaffold systems typically consist of vertical metal tubes releasably fastened to horizontal metal tubes through the use of releasable clamps that join the vertical and horizontal tubes together.
  • the clamps used to join a horizontal or diagonal tube to a vertical tube is usually a two-part swivel clamp.
  • This clamp consists of two opposing clamshell-style half-clamps having bases that are joined together with a swivel joint. Each half-clamp clamps onto a single tube.
  • FIGS. 2A and 2B illustrate two types of prior art scaffold tube clamps.
  • FIG. 2C illustrates a prior art swivel clamp that permits one part of the clamp to fasten to a vertical tube whereas the other part can swivel to accommodate a horizontal support tube or a diagonal brace tube.
  • a section of scaffold would have four vertical tubes, one at each corner of the section.
  • Horizontal tubes are placed around the perimeter of the section both near the bottom and near the top of the vertical tubes in an overlapping fashion to maintain the section in a rectangular configuration.
  • the horizontal tubes are referred to as either “transoms” or “ledgers” depending on where they are positioned on the scaffold structure.
  • Transoms are used to support planks or walkways for workers to walk along the scaffold structure whereas ledgers are placed between vertical tubes in parallel with the planks or walkways to support the structure itself.
  • a diagonal brace is used to ensure the rigidity of the scaffold section by extending from a high elevation on one vertical tube to a low elevation on an adjacent vertical tube.
  • Sections of scaffold can be stacked one on top of another by using insert pins that fit into the ends of the vertical tubes such that the lower end of an upper section couples to the upper end of the lower vertical tube, thereby permitting the scaffold to be built up in height.
  • the lower ends of the vertical tubes are coupled to base plates to stabilize the scaffold structure.
  • leveling jacks may be placed at the bottom of one or all of the vertical tubes to adjust for the uneven ground height and maintain the scaffold section in a vertical orientation. All of the foregoing is well known to those skilled in the art.
  • Another disadvantage of this type of scaffold is that the use of metal tubes as diagonal braces. Tubes of varying length are required to span the diagonal distances between vertical tubes.
  • Other forms of scaffolding systems as are well known to those skilled in the art, use braces either of angle iron or metal tubes with flattened ends having holes at each end to receive pins affixed to a scaffold section. These pins are usually equipped with quick release locking mechanisms that permit a brace to be quickly and easily attached to and removed from the scaffold section with minimal effort.
  • the present invention is concerned with a tube and clamp scaffold system using conventional vertical metal scaffold tubes and horizontal support members of predetermined fixed lengths.
  • Each support horizontal support member is a rigid bar, preferably a metal scaffold tube, having first and second ends defining a longitudinal axis.
  • Each horizontal support member has a half-clamp attached to each of its two ends. preferably, the half-clamps are welded to the support member. Each half-clamp is adapted to clamp a vertical tube.
  • the two half-clamps of the horizontal support member are oriented in the same direction such that once the horizontal support member is fastened to two adjacent vertical tubes, the support member is horizontal and perpendicular to the vertical tubes.
  • the vertical tubes are maintained at a uniform, predetermined fixed distance apart along their height.
  • Another aspect of the present invention includes a half-clamp having fastening means, such as a bolt and nut or a quick release locking mechanism or brace pin, for use with conventional scaffold braces as are well known to those skilled in the art.
  • Conventional braces include lengths of angle iron or metal tubes with flattened ends.
  • Each end of a scaffold brace comprises an aperture for receiving a fastener for attaching to a scaffold structure.
  • a brace clamp can be placed at any point on one vertical tube and a second brace clamp can be placed at the appropriate point on an adjacent vertical tube for attaching a diagonal brace of a fixed length.
  • the fastening means of the brace clamps extend through the apertures of the scaffold brace for releasably securing the brace to the brace clamp thereby adding rigidity to the scaffold structure.
  • one aspect of the present invention is a support member for a tube and clamp scaffold system comprising a rigid bar having first and second ends and defining a longitudinal axis, and a half-clamp at each of the first and second ends, each half-clamp oriented to clamp a tube whose axis is substantially perpendicular to said longitudinal axis, the half-clamps oriented in substantially the same direction whereupon attaching each half-clamp of the rigid bar to a substantially vertical scaffold tube causes the support member to be substantially horizontal.
  • another aspect of the present invention is a scaffold system comprising a plurality of substantially vertical scaffold tubes positioned in a spaced-apart configuration, and a plurality of substantially horizontal support members releasably connected to each pair of adjacent vertical scaffold tubes, each support member comprising a rigid bar having first and second ends and defining a longitudinal axis, the bar having a half-clamp at each of the first and second ends, each half-clamp oriented to clamp a tube whose axis is substantially perpendicular to said longitudinal axis, the half-clamps oriented in substantially the same direction whereupon attaching each half-clamp of a support member to a substantially vertical scaffold tube causes said support member to be substantially horizontal.
  • another aspect of the present invention is a brace clamp for a scaffold brace having first and second ends, each end having an aperture for receiving a fastener, comprising a half-clamp having a base, and a fastener for releasably attaching a scaffold brace to the support clamp, the fastener projecting substantially perpendicular from the base of the support clamp and the support clamp being attached to a scaffold tube having a longitudinal axis, the fastener extending substantially perpendicular to the longitudinal axis for attaching to an aperture of the scaffold brace.
  • FIG. 1 is a perspective view of a prior art tube and clamp scaffold system.
  • FIGS. 2A, 2B and 2 C are perspective views of prior art clamshell swivel tube clamps.
  • FIG. 3 is a perspective view of a horizontal support member of the present invention.
  • FIG. 4 is a side elevational view of a horizontal support member of the present invention.
  • FIG. 5 is a perspective view of one tube clamp of a horizontal support member of the present invention.
  • FIG. 6 is a perspective view of a scaffold system of the present invention.
  • FIG. 7A is a perspective view of one embodiment of the brace clamp of the present invention.
  • FIG. 7B is a perspective view of an alternate embodiment of the brace clamp of the present invention.
  • FIG. 8 is a perspective view of a scaffold system of the present invention equipped with a diagonal brace.
  • FIG. 9 is a perspective view of a scaffold system of the present invention equipped with a scissors brace.
  • the present invention is concerned with a horizontal support member for use with a tube and clamp scaffold system.
  • the horizontal support member consists of a rigid bar and a clamshell half-clamp attached to each end of the bar.
  • the clamps may include models P1001, P2001 and P1146 made by van Thiel United b.v. of the Netherlands and model SW 2 ⁇ 2 made by Etobicoke Ironworks Limited of Weston, Ontario, Canada.
  • Those skilled in the art will understand that any acceptable style of tube half-clamp for use with tube and clamp scaffold systems may be used with the present invention.
  • support member 10 consists of rigid bar 12 having a half-clamp 14 welded at each end of bar 12 .
  • bar 12 is a length of Schedule 40 steel scaffold tubing having an inside diameter of 1.5 inches or an outside diameter of 1.9 inches.
  • Half-clamp 14 is attached, preferably welded, to each end of bar 12 .
  • Each half-clamp 14 is attached such that it will clamp a tube that is perpendicular to the longitudinal axis of bar 12 .
  • Both half-clamps 14 on a bar 12 are oriented in the same direction such that when support member 10 is attached to two adjacent vertical tubes 16 , support member 10 is substantially horizontal.
  • scaffold system 15 consists of a plurality of vertical tubes 16 in a spaced-apart configuration.
  • the bottom of each vertical tube 16 may have a base plate 18 or a leveling jack 20 .
  • Leveling jack 20 allows for adjustment in height of vertical tube 16 to compensate for variations in ground elevation where scaffold system 15 is located.
  • Support members 10 are attached to adjacent pairs of vertical tubes 16 .
  • a section of scaffold system 15 is rectangular in cross-section with support members 10 placed at positions both low and high along the height of vertical tube 16 to stabilize the structure of scaffold system 15 and to maintain uniform distance between vertical tubes 16 .
  • support members 10 may be provided in various fixed lengths.
  • two support members 10 act as transoms 11 whereas two support members 10 act as ledgers 13 .
  • Transoms 11 support planks or walkways 17 whereas ledgers 13 provide support for scaffold system 15 itself.
  • Scaffold system 15 may be built up in height by stacking vertical tubes 16 one on top of another. Insert pins 19 are placed between adjoining sections of vertical tubes 16 to connect them together. Additional support members 10 are then placed between adjacent pairs of vertical tubes 16 of the upper section.
  • brace clamps 22 are attached to an adjacent pair of vertical tubes 16 that brace 28 will attach to.
  • Brace 28 may consist of a piece of angle-iron or a metal tube with its ends flattened.
  • At each end of brace 28 are apertures 29 .
  • Brace clamp 22 consists of a half-clamp 14 attached to base 24 , preferably welded together. Extending perpendicular from base 24 is brace fastener 26 . As shown in FIGS.
  • brace fastener 26 may be a bolt and nut or it may consist of a releasable mechanism to receive and capture an end of brace 28 via aperture 29 .
  • brace 28 is used as a diagonal brace, one brace clamp 22 is placed at a low elevation on one vertical tube 16 while another brace clamp 22 is placed at a higher elevation on the adjacent vertical tube 16 .
  • the distance between brace fasteners 26 is the same as the distance between apertures 29 on brace 28 .
  • brace clamp 22 may be used with a scissors-type brace 30 which has two braces 28 attached by a swivel joint 31 mid-way along their length.
  • the use of this type of brace requires the use of four brace clamps 22 , two on each adjacent vertical tubes 16 .

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
US10/770,844 2003-10-14 2004-02-03 Horizontal support member for tube and clamp scaffold assembly Abandoned US20050077108A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002445024A CA2445024A1 (fr) 2003-10-14 2003-10-14 Element de maintien horizontal pour systeme d'echafaudage a tubes et colliers
CA2,445,024 2003-10-14

Publications (1)

Publication Number Publication Date
US20050077108A1 true US20050077108A1 (en) 2005-04-14

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US10/770,844 Abandoned US20050077108A1 (en) 2003-10-14 2004-02-03 Horizontal support member for tube and clamp scaffold assembly

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CA (1) CA2445024A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070187179A1 (en) * 2006-02-10 2007-08-16 Porfirio Simoes Scaffold Support Bracket and Assembly
CN102877635A (zh) * 2012-10-16 2013-01-16 郑其雄 一种改良型脚手架
WO2013150439A1 (fr) * 2012-04-03 2013-10-10 Wee Liang Mun Sunny Échafaudage modulaire
US20190010718A1 (en) * 2015-07-17 2019-01-10 Sistemas Tecnicos De Encofrados, S.A. Diagonal reinforcement for support structures for floor formwork and method for mounting same
US20200102764A1 (en) * 2017-11-16 2020-04-02 Titan Formwork Systems Llc System for lateral support of shoring posts
USD915622S1 (en) * 2018-01-10 2021-04-06 Nikken Lease Kogyo Co., Ltd. Locking member of horizontal supporter for scaffolds

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113123579A (zh) * 2021-04-15 2021-07-16 广东创富金属制造有限公司 一种自锁式快装脚手架及搭接方法

Citations (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1487336A (en) * 1922-11-01 1924-03-18 Berthold H Kamp Limb support
US1528268A (en) * 1924-04-23 1925-03-03 Schlegel Carl Scaffold support
US1597025A (en) * 1926-01-14 1926-08-24 Eger Richard Polishing device
US2897013A (en) * 1954-08-30 1959-07-28 Preston P Delp Knockdown scaffold
US3266208A (en) * 1963-01-17 1966-08-16 Acrow Eng Ltd Scaffolding
US3345655A (en) * 1965-06-30 1967-10-10 Marvel Equipment Corp Releasable metal scaffolding connector
US4111579A (en) * 1976-04-02 1978-09-05 North Western Scaffolding Company Limited Scaffolding
US4129393A (en) * 1977-07-25 1978-12-12 Sickler Jack R Scaffold lumber clamps
US4193708A (en) * 1977-09-19 1980-03-18 Deborah Services Limited Girder clamp
US4200955A (en) * 1977-09-19 1980-05-06 Deborah Services Limited Girder roller fittings
US4276959A (en) * 1979-08-23 1981-07-07 Barber Ronald A Quick way scaffold
US4308934A (en) * 1979-02-08 1982-01-05 Black & Decker Inc. Work support
US4368800A (en) * 1978-03-16 1983-01-18 Campbell Robert L Scaffolding apparatus
US4426171A (en) * 1980-08-09 1984-01-17 Eberhard Layher Coupling for metallic scaffolds
US4445307A (en) * 1982-11-08 1984-05-01 Figgie International Inc. Scaffold joint for a scaffold structure
US4452337A (en) * 1982-09-30 1984-06-05 Atzinger Louis E Sectional scaffolding raising apparatus
US4497389A (en) * 1980-11-19 1985-02-05 Whitlam Holdings Limited Of Low Valley Industrial Estate Method of erecting drop scaffolding, a drop scaffolding structure, and a scaffold coupling therefor
US4549634A (en) * 1983-04-15 1985-10-29 Waco International Corporation Scaffold connector assembly
US4632221A (en) * 1984-06-18 1986-12-30 Stanford Joseph S Bracing clamp for shoring structures
US4782917A (en) * 1987-08-17 1988-11-08 Schulz Richard H Adjustable scaffold
US4828073A (en) * 1986-03-20 1989-05-09 Friday Ronald W Mobile suspended scaffold
US4856616A (en) * 1988-07-05 1989-08-15 Carl Anderson Railing support clamp for scaffold
US4883147A (en) * 1987-06-25 1989-11-28 Derek George Davison Scaffolding systems and clamping devices therefor
US4941547A (en) * 1989-09-25 1990-07-17 Livick Lester R Safety featured ladder scaffolding
US4947962A (en) * 1989-08-21 1990-08-14 Helsper Steve M Adjustable scaffold support
US5000290A (en) * 1990-03-01 1991-03-19 Seely Phillip D Scaffold flooring attachment clamp
US5044467A (en) * 1989-07-17 1991-09-03 Heiden Gary J Scaffold
US5052581A (en) * 1990-08-13 1991-10-01 Craft Creations Co., Inc. Ladder-supported holding tray
US5145030A (en) * 1991-09-11 1992-09-08 Waco International Corporation Guard rail post
US5152366A (en) * 1991-03-28 1992-10-06 The United States Of America As Represented By The Secretary Of The Navy Sound absorbing muffler
US5203426A (en) * 1992-02-11 1993-04-20 Sydnor Eugene E Portable window perch assembly
US5259690A (en) * 1990-01-04 1993-11-09 Philip Legge Scaffold couplers
US5287947A (en) * 1992-07-24 1994-02-22 Mcswain Gregory A Vertical support grid system
US5411113A (en) * 1991-07-12 1995-05-02 Lubinski; Ronald Aluminum scaffold system
US5451445A (en) * 1993-11-16 1995-09-19 Wang; Tsu J. Foldable net assembly
US5605204A (en) * 1993-05-04 1997-02-25 Ulma, S. Coop. Ltda Multidirectional scaffolding
US5624093A (en) * 1995-06-05 1997-04-29 Gemmell; R. Wayne Clamping paint tray assembly with holding apparatus
US5701971A (en) * 1994-11-07 1997-12-30 Rchid; Abazid Amin Protective member for metal scaffold knots or joints
US5878840A (en) * 1997-05-06 1999-03-09 Tessum; Mark Reed Apparatus and method for stabilizing a scaffold assembly
US5899296A (en) * 1997-03-21 1999-05-04 Lantz; Harvey D. Step ladder scaffold apparatus
US5918843A (en) * 1997-03-19 1999-07-06 Stammers; Terrance H. Scaffold bracket
US5944468A (en) * 1998-05-07 1999-08-31 Declan T. McBrien Device for raising objects above elevated work platforms
US6050533A (en) * 1996-08-30 2000-04-18 Cruz; Felix Components to stabilize ladders and create localize scaffolds
US20020014371A1 (en) * 2000-03-25 2002-02-07 Guenther Krause Tube element
US20020036118A1 (en) * 1997-12-26 2002-03-28 Nisso Sangyo, Co. Ltd. Frames and structures assembled by same
US20020106237A1 (en) * 2001-02-02 2002-08-08 Peter Rogers Scaffold clamp
US20030015372A1 (en) * 2001-07-20 2003-01-23 Herrmann Peter H. Anchor clamp

Patent Citations (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1487336A (en) * 1922-11-01 1924-03-18 Berthold H Kamp Limb support
US1528268A (en) * 1924-04-23 1925-03-03 Schlegel Carl Scaffold support
US1597025A (en) * 1926-01-14 1926-08-24 Eger Richard Polishing device
US2897013A (en) * 1954-08-30 1959-07-28 Preston P Delp Knockdown scaffold
US3266208A (en) * 1963-01-17 1966-08-16 Acrow Eng Ltd Scaffolding
US3345655A (en) * 1965-06-30 1967-10-10 Marvel Equipment Corp Releasable metal scaffolding connector
US4111579A (en) * 1976-04-02 1978-09-05 North Western Scaffolding Company Limited Scaffolding
US4129393A (en) * 1977-07-25 1978-12-12 Sickler Jack R Scaffold lumber clamps
US4193708A (en) * 1977-09-19 1980-03-18 Deborah Services Limited Girder clamp
US4200955A (en) * 1977-09-19 1980-05-06 Deborah Services Limited Girder roller fittings
US4368800A (en) * 1978-03-16 1983-01-18 Campbell Robert L Scaffolding apparatus
US4308934A (en) * 1979-02-08 1982-01-05 Black & Decker Inc. Work support
US4276959A (en) * 1979-08-23 1981-07-07 Barber Ronald A Quick way scaffold
US4426171A (en) * 1980-08-09 1984-01-17 Eberhard Layher Coupling for metallic scaffolds
US4497389A (en) * 1980-11-19 1985-02-05 Whitlam Holdings Limited Of Low Valley Industrial Estate Method of erecting drop scaffolding, a drop scaffolding structure, and a scaffold coupling therefor
US4452337A (en) * 1982-09-30 1984-06-05 Atzinger Louis E Sectional scaffolding raising apparatus
US4445307A (en) * 1982-11-08 1984-05-01 Figgie International Inc. Scaffold joint for a scaffold structure
US4549634A (en) * 1983-04-15 1985-10-29 Waco International Corporation Scaffold connector assembly
US4632221A (en) * 1984-06-18 1986-12-30 Stanford Joseph S Bracing clamp for shoring structures
US4828073A (en) * 1986-03-20 1989-05-09 Friday Ronald W Mobile suspended scaffold
US4883147A (en) * 1987-06-25 1989-11-28 Derek George Davison Scaffolding systems and clamping devices therefor
US4782917A (en) * 1987-08-17 1988-11-08 Schulz Richard H Adjustable scaffold
US4856616A (en) * 1988-07-05 1989-08-15 Carl Anderson Railing support clamp for scaffold
US5044467A (en) * 1989-07-17 1991-09-03 Heiden Gary J Scaffold
US4947962A (en) * 1989-08-21 1990-08-14 Helsper Steve M Adjustable scaffold support
US4941547A (en) * 1989-09-25 1990-07-17 Livick Lester R Safety featured ladder scaffolding
US5259690A (en) * 1990-01-04 1993-11-09 Philip Legge Scaffold couplers
US5000290A (en) * 1990-03-01 1991-03-19 Seely Phillip D Scaffold flooring attachment clamp
US5052581A (en) * 1990-08-13 1991-10-01 Craft Creations Co., Inc. Ladder-supported holding tray
US5152366A (en) * 1991-03-28 1992-10-06 The United States Of America As Represented By The Secretary Of The Navy Sound absorbing muffler
US5411113A (en) * 1991-07-12 1995-05-02 Lubinski; Ronald Aluminum scaffold system
US5145030A (en) * 1991-09-11 1992-09-08 Waco International Corporation Guard rail post
US5203426A (en) * 1992-02-11 1993-04-20 Sydnor Eugene E Portable window perch assembly
US5287947A (en) * 1992-07-24 1994-02-22 Mcswain Gregory A Vertical support grid system
US5605204A (en) * 1993-05-04 1997-02-25 Ulma, S. Coop. Ltda Multidirectional scaffolding
US5451445A (en) * 1993-11-16 1995-09-19 Wang; Tsu J. Foldable net assembly
US5701971A (en) * 1994-11-07 1997-12-30 Rchid; Abazid Amin Protective member for metal scaffold knots or joints
US5624093A (en) * 1995-06-05 1997-04-29 Gemmell; R. Wayne Clamping paint tray assembly with holding apparatus
US6050533A (en) * 1996-08-30 2000-04-18 Cruz; Felix Components to stabilize ladders and create localize scaffolds
US5918843A (en) * 1997-03-19 1999-07-06 Stammers; Terrance H. Scaffold bracket
US5899296A (en) * 1997-03-21 1999-05-04 Lantz; Harvey D. Step ladder scaffold apparatus
US5878840A (en) * 1997-05-06 1999-03-09 Tessum; Mark Reed Apparatus and method for stabilizing a scaffold assembly
US20020036118A1 (en) * 1997-12-26 2002-03-28 Nisso Sangyo, Co. Ltd. Frames and structures assembled by same
US5944468A (en) * 1998-05-07 1999-08-31 Declan T. McBrien Device for raising objects above elevated work platforms
US20020014371A1 (en) * 2000-03-25 2002-02-07 Guenther Krause Tube element
US20020106237A1 (en) * 2001-02-02 2002-08-08 Peter Rogers Scaffold clamp
US20030015372A1 (en) * 2001-07-20 2003-01-23 Herrmann Peter H. Anchor clamp

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070187179A1 (en) * 2006-02-10 2007-08-16 Porfirio Simoes Scaffold Support Bracket and Assembly
WO2013150439A1 (fr) * 2012-04-03 2013-10-10 Wee Liang Mun Sunny Échafaudage modulaire
CN102877635A (zh) * 2012-10-16 2013-01-16 郑其雄 一种改良型脚手架
US20190010718A1 (en) * 2015-07-17 2019-01-10 Sistemas Tecnicos De Encofrados, S.A. Diagonal reinforcement for support structures for floor formwork and method for mounting same
US10570631B2 (en) * 2015-07-17 2020-02-25 Sistemas Tecnicos De Encofrados, S.A. Diagonal reinforcement for support structures for floor formwork and method for mounting same
US20200102764A1 (en) * 2017-11-16 2020-04-02 Titan Formwork Systems Llc System for lateral support of shoring posts
US10947749B2 (en) * 2017-11-16 2021-03-16 Titan Formwork Systems Llc System for lateral support of shoring posts
USD915622S1 (en) * 2018-01-10 2021-04-06 Nikken Lease Kogyo Co., Ltd. Locking member of horizontal supporter for scaffolds

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