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US3493143A - Sectional floating roof and roof sections therefor - Google Patents

Sectional floating roof and roof sections therefor Download PDF

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Publication number
US3493143A
US3493143A US683962A US3493143DA US3493143A US 3493143 A US3493143 A US 3493143A US 683962 A US683962 A US 683962A US 3493143D A US3493143D A US 3493143DA US 3493143 A US3493143 A US 3493143A
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US
United States
Prior art keywords
roof
sections
roof sections
bottom wall
walls
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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
US683962A
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English (en)
Inventor
Joseph C Thompson
Milton W Heisterberg
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.)
BROWN-MINNEAPOLIS TANK & FABRICATING Co A MN CORP
General American Transportation Corp
Original Assignee
Gen Am Transport
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Filing date
Publication date
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Publication of US3493143A publication Critical patent/US3493143A/en
Assigned to BROWN-MINNEAPOLIS TANK & FABRICATING CO., A MN CORP reassignment BROWN-MINNEAPOLIS TANK & FABRICATING CO., A MN CORP ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GATX CORPORATION, A NY CORP
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/34—Large containers having floating covers, e.g. floating roofs or blankets

Definitions

  • a floating roof for use in a storage tank having an upstanding substantially cylindrical shell and posts supporting a fixed roof thereon, the floating roof comprising a plurality of like inner roof sections and a plurality of outer roof sections shaped and arranged to fill the space between an assembly of the inner roof sections and the associated shell; each roof section includes a continuous peripheral wall therearound and a bottom wall closing the area defined by the peripheral wall, the bottom wall having portions thereof spaced upwardly from the lower edges of the peripheral wall; the adjacent peripheral walls are joined as by riveting; a first flexible seal is supported upon the roof sections and extends outwardly therefrom and against the associated shell; and a second flexible seal is supported upon the roof sections about each of the posts.
  • the present invention is directed to a sectional floating roof for use in a storage tank, and to individual buoyant roof sections useful in forming such a floating roof.
  • the floating roof for use in a storage tank having an upstanding substantially cylindrical shell, the floating roof comprising a plurality of inner roof sections substantially identical one to the other and individually buoyant, each of the inner roof sections including a pair of upstanding generally parallel side walls and a pair of upstanding generally parallel end walls joined to form a first continuous peripheral wall therearound and a first bottom wall closing the area defined by the first peripheral wall, the first bottom wall having portions thereof spaced upwardly from the lower edges of the side walls and the end walls to trap vapors in the space provided thereunder and to increase the stability of the inner roof section during flotation thereof, the inner roof sections being arranged substantially to fill the area defined by the associated shell with the first peripheral walls of each inner roof section belng (1 18- posed against the first peripheral walls of the ad acent 1nner roof sections, a plurality of outer roof sections disposed between the inner roof sections and the associated shell and being individually buoyant, each of the outer roof sections including a second continuous peripheral wall therearound and a
  • Another object of the invention is to provide a sectional floating roof of the type set forth requiring no special seal between the adjacent sections forming the roof, each of the sections being shaped and formed to be individually buoyant and stable and designed to trap vapors thereunder in an area defined by the peripheral wall and the bottom wall, whereby simple fasteners such as rivets may be used to join adjacent roof sections without special sealing structures therebetween.
  • Yet another object of the invention is to provide in a floating roof of the type set forth an improved structure for mounting the vapor seal between the floating roof and the associated shell, the mounting structure including a mounting plate formed from either a plurality or arcuate sections mounted on the roof sections or a plurality of straight sections mounted on the roof sections.
  • Still another object of the invention is to provide on a sectional floating roof of the type set forth an improved structure for providing a vapor seal between the floating roof and posts passing therethrough and supporting an associated stationary roof disposed thereabove.
  • Another object of the invention is to provide for the improved floating roof of the present invention an improved buoyant roof section including a pair of upstanding generally parallel side walls and a pair of upstanding end walls, the side walls and the end walls being joined to form a continuous peripheral wall therearound, and a bottom wall closing the area defined by the peripheral wall, the bottom wall having portions thereof spaced upwardly from the lower edges of the side walls and the end walls to trap vapors in the space provided thereunder and to increase the stability of the roof section during flotation thereof.
  • a further object of the invention is to provide a standard roof section for use in forming a sectional floating roof of the type set forth, the standardroof section being adapted to be manufactured by mass-production tech nique, thereby to be economical in cost as well as economical in assembly with other roof sections to form a completed floating roof.
  • a still further object of the invention is to provide a buoyant outer roof section for use in forming a floating roof of the type set forth, the outer roof section being of the same lateral cross section as the standard roof section but having different lengths and on occasion nonparallel end walls, whereby to be advantageously useful in filling the spaces required to keep a generally circular assembly of roof sections.
  • FIGURE 1 is a side elevational view of a covered storage tank having mounted therein a floating roof made in accordance with and embodying the principles of the present invention, a portion of the storage tank and a portion of the outer vapor seal being broken away better to illustrate the construction of the floating roof;
  • FIG. 2 is a fragmentary view in horizontal section on an enlarged scale through the tank of FIG. 1 along the line 22 thereof;
  • FIG. 3 is a perspective view on a further enlarged scale of one of the standard roof sections utilized in assembling the floating roof of FIGS. 1 and 2;
  • FIG. 4 is a perspective view with certain portions broken away of an outer roof section useful in forming the floating roof of FIGS. 1 and 2;
  • FIG. 5 is a view on a further enlarged scale in vertical section along the line 55 of FIG. 3 and illustrating the first preferred embodiment of the roof section of the present invention
  • FIG. '6 is a View on a slightly reduced scale similar to FIG. 5 and showing a second preferred embodiment of the roof section of the present invention
  • FIG. 12 is a further enlarged view in vertical section along the line 1212 of FIG. 9;
  • FIG. 13 is a fragmentary view on an enlarged scale of the portion of the floating roof around one of the roof support posts passing therethrough;
  • the dimensions of the standard roof section 110 are chosen so that the sections may be readily handled by workmen during the construction or repair of the floating roof 100, and more specifically, the dimensions are such that the standard roof sections 110 can be passed through the manhole 27, thus allowing construction and repair of the floating roof 100 after the tank 20 has been fully erected.
  • the length thereof i.e., the length of the side walls 111
  • the width of the roof section 110 i.e., the length of the end walls 112 is 18 inches
  • the vertical extent of the walls 111 and 112 is 4 inches.
  • a standard roof section 110 having such dimensions can be readily passed through the manhole 27 and lowered into the storage tank 20.
  • the individual roof sections may be temporarily supported on a frame during assembly of the roof 100 in order to provide the proper level of each of the roof sections, or 4 to 6 inches of water may be introduced into the tank so that the individual buoyant roof sections can be floated thereon and thereafter assembled to provide the completed roof 100.
  • center portions 316 and the flanges 318 are formed from a single rectangular sheet of metal bent to provide the parts and shapes illustrated. It further Will be understood that the ends of the side wall 311 are connected and closed by end walls (not shown) which are secured thereto in a fluid-tight manner so as to provide a buoyant standard roof section 310.
  • FIGS. 2 and 10 A typical pattern for assembling a plurality of the standard roof sections 110 with the required shortened roof sections 120 and outer roof sections 130 to provide a generally circular assembly is illustrated in FIGS. 2 and 10. It will be noted that as many as possible of the standard roof sections 110 and the shortened roof sections 120 are used, this resulting in a marked economy in manufacture and construction since these sections are more economically produced and assembled. However, to provide a substantially circular outline for the roof 100, a plurality of and a number of difierent varieties of the outer roof sections 130 are provided. As is best seen in FIGS, 9 and 10, the several roof sections are all secured by the rivets 140 at frequent intervals along the adjacent side walls and end walls so as completely to fill the area of the roof 100 so that there are no voids or spaces therein.
  • the outer periphery of the thus assembled roof sections is spaced a distance away from the inner surface 22 of the shell 21, whereby it is necessary and desirable to provide the outer or shell seal structure 150 that extends around the outer periphery of the roof 100 and seals the area disposed bewteen the outer periphery of the roof 100 and the inner surface 22 of the shell 21.
  • the sealing element 160 is formed as a continuous extrusion of the resin shaped to provide a top wall 161 and a bottom wall 162 that converge radially outwardly and provide a thickened juncture 163 having a bearing surface 165 that is disposed in sliding and sealing engagement with the tank shell 21, and specifically the inner surface 22 thereof. Since the completed sealing element 160 is actually annular in shape, relatively short sections having the extruded shape of FIG. 12 are cemented in place during the construction of the floating roof 100 in the field to provide a continuous annular ring which at any point has a cross section along a diameter of the roof 100 of the shape generally illustrated in FIG. 12.
  • the inner edge of the bottom wall 162 carries a second mounting flange 167 integral therewith and extending upwardly therefrom, the mounting flange 167 being disposed against the outer surface of the wall 152 and substantially parallel to the first mounting flange 166 and disposed in lateral alignment therewith.
  • the sealing element 160 further comprises a pair of spaced-apart webs 168 and 169, the web 168 being disposed outwardly toward but spaced from the juncture 163 between the wall 161 and the wall 162 and is disposed substantially normal to the top wall 161, while the reinforcing web 169 is disposed toward but spaced from the mounting flanges 166167 and is also disposed substantially normal to the top wall 161.
  • the reinforcing webs 168 and 169 provide a desired degree of rigidity in the sealing element 160 and in effect provide a relative stifl? body having on the outer annular edge thereof the bearing surface 165 and having on the inner annular edges thereof the mounting flanges 166 and 167.
  • a washer bar 156 is provided against the inner surface of the mounting flange 166 and having openings therein in alignment with the holes in the flange 166, the washer bar 156 having a plurality of washers 157 suitably secured thereto as by welding and having openings therein in alignment with the openings in the washer bar 156 Finally, there is provided a bolt having a threaded shank 146 pointed at the outer end thereof, the shank 146 of the bolt 145 extending through the aligned openings in the associated washer 157 and the washer bar 156, and through the associated aligned holes in the wall 152 and the mounting flanges 166-167, and through the associated opening in the clamp bar 154- and threadedly engaging the associated nut 155 on the clamp bar 154.
  • the bolt 14-5 serves to clamp the mounting flanges 166 and 167 against the wall 152 and between the clamp bar 154 and the washer bar 156.
  • the clamp bar 154 and the washer bar 156 are formed as generally rectangular pieces of metal that are then curved to conform to, and to have a radius of curvature substantially equal to, the radius of curvature of the wall 152, preferably the bars 154 and 156 having convenient lengths, such as for example three feet, whereby a plurality of the bars 154 and 156 is provided around the periphery of the floating roof 100, the nuts 155 and the washers 157 preferably being disposed approximately every nine inches therealong.
  • FIG. 11 of the drawings a modification of the sealing structure 150, this modification being identified by the numeral 250.
  • a plurality of straight mounting plates 251 has been substituted for the curved mounting plates 151, the sealing element 160 being mounted on the mounting plates 251.
  • the straight mounting plates 251 are in fact mounted by means of rivets upon the 9 mounting flanges 132B f the several outer roof sections 130.
  • a rubber sealing element 175 which has an opening 176 therein that is slightly smaller in diameter than the diameter of the associated post 25, the sealing element 175 also having a slit 177 extending from the edge thereof inwardly to the opening 17 6 so as to permit assembly of the sealing element 175 about the post 25.
  • a plurality of rivets 178 serves to mount the sealing element 175 upon the cover plate 171 in the position shown with the material defining the periphery of the opening 176 snugly engaging the outer surface of the associated post 25.
  • a floating roof for use in a storage tank having an upstanding substantially cylindrical shell, said floating roof comprising a plurality of inner roof sections substantially identical one to the other and being individually buoyant, each of said inner roof sections including a pair of upstanding generally parallel side walls and a pair of upstanding generally parallel end walls joined to form a first continuous peripheral wall therearound and a first bottom wall closing the area defined by said first peripheral wall, said first bottom wall having portions only thereof spaced upwardly from the lower edges of said side walls and said end walls defining a plurality of downwardly opening pockets to trap vapors in the space provided thereunder and to increase the stability of said inner roof section during floatation thereof, said inner roof sections being arranged substantially to fill the area defined by the associated shell with said first peripheral walls of each inner roof section being disposed against the first peripheral walls of the adjacent inner roof sections, a plurality of outer roof sections disposed between said inner roof sections and the associated shell and being individually buoyant, each of said outer roof sections including a second continuous peripheral wall therearound and a second bottom wall closing the area defined by said
  • each of said second sealing means includes a cover plate having an opening centrally thereof for receiving an associated post therethrough and extending outwardly over the peripheral walls of the adjacent roof section and secured thereto, a peripheral wall mounted on said cover plate and extending downwardly therefrom and disposed against the peripheral walls of the surrounding roof sections, and a resilient sealing element mounted on said cover plate and surrounding the associated post and bearing thereagainst to provide a seal therearound.
  • a buoyant outer roof section for use in forming a floating roof for a storage tank having an upstanding substantially cylindrical shell, said outer roof section including a pair of upstanding generally parallel rectangular side walls and a pair of upstanding rectangular end walls, said side walls and said end walls being joined to form a continuous peripheral wall therearound, a bottom wall closing the area defined by said peripheral wall, said bottom wall having portions only thereof spaced upwardly from the lower edges of said side walls and said end walls defining a plurality of downwardly opening pockets to trap vapors in the space provided thereunder and to increase the stability of said outer roof section during flotation thereof, and a mounting flange disposed on the upper edge of said end wall adapted to be disposed toward the adjacent shell, said mounting flange extending inwardly and overlying a portion of said bottom wall for mounting a sealing structure thereon,
  • each of said outer roof sections including a second continuous peripheral wall therearound and a second bottom wall closing the area defined by said second peripheral wall, said second bottom wall having portions thereof spaced upwardly from the lower edges of said second peripheral wall to trap vapors in the spaces provided thereunder and to increase the stability of said outer roof section during flotation thereof, said outer roof sections being shaped and arranged susbtantially to fill the spaces between said inner roof sections and the associated shell, means securing the adjacent peripheral Walls of said roof sections one to the other to hold said roof sections in the assembled positions thereof, and sealing means supported upon said roof sections and disposed between said roof sections and the associated shell to provide a vapor seal between said floating roof and the associated shell.
  • a floating roof for use in a storage tank having an upstanding substantially cylindrical shell, said floating roof comprising a plurality of inner roof sections substantially identical one to the other and being individually buoyant, each of said inner roof sections including a pair of upstanding generally parallel side walls and a pair of upstanding generally parallel end walls joined to form a first continuous peripheral wall therearound and a first bottom wall closing the area defined by said first peripheral Wall, said first bottom wall including a pair of longitudinally extending rectangular center portions joined along the longitudinally extending inner edges thereof and centrally of said first bottom wall, said center portions being inclined upwardly from said inner edges and having on the longitudinally extending outer edges thereof depending side flanges, and means joining the junctures between said center portions and the associated side flanges to the adjacent side wall adjacent to the upper edge thereof, to trap vapors in the space provided under said first bottom wall and to increase the stability of said inner roof section during flotation thereof, said inner roof sections being arranged substantially to fill the area defined by the associated shell with said first peripheral walls of each inner roof section being disposed against
  • a floating roof for use in a storage tank having an upstanding substantially cylindrical shell said floating roof comprising a plurality of inner roof sections substantially identical one to the other and being individually buoyant, each of said inner roof sections including a pair of upstanding generally parallel side walls and a pair of upstanding generally parallel end Walls joined to form a first continuous peripheral wall therearound and a first bottom Wall closing the area defined by said first peripheral Wall, said first bottom wall having portions thereof spaced upwardly from the lower edges of said side walls and said end wall to trap vapors in the space provided thereunder and to increase the stability of said inner roof section during flotation thereof, said inner roof sections being arranged substantially to fill the area defined by the associated shell With said first peripheral walls of each inner roof section being disposed against the first peripheral walls of the adjacent inner roof sections, a plurality of outer roof sections disposed between said inner roof sections and the associated shell and being individually buoyant, each of said outer roof sections including a second continuous peripheral wall therearound and a second bottom wall closing the area defined by said second peripheral wall, said second bottom wall having portions thereof space
  • a buoyant roof section for use in forming a floating roof for a storage tank, said roof section including a pair of upstanding generally parallel side walls and a pair of upstanding end Walls, said side walls and said end walls being joined to form a continuous peripheral wall therearound, and a bottom wall closing the area defined by said peripheral wall, said bottom wall including a pair of longitudinally extending center portions joined along the longitudinally extending inner edges thereof and centrally of said bottom wall, said center portions being inclined upwardly from said inner edges and having side flanges respectively on the longitudinally extending outer edges thereof extending downwardly and joined to the lower edges of the associated side walls to trap vapors in the space provided under said first bottom wall and to increase the stability of said roof section during flotation thereof.
  • a buoyant roof section for use in forming a floating roof for storage tank, said roof section including a pair of upstanding generally parallel side walls and a pair of upstanding end walls, said side walls and said end walls being joined to form a continuous peripheral wall therearound, and a bottom wall closing the area defined by said peripheral wall, said bottom wall including a pair of longitudinally extending center portions joined along the longitudinally extending inner edges thereof and centrally of said bottom wall, said center portions being inclined upwardly from said inner edges and having the longitudinally extending outer edges thereof joined to the adjacent one of said side walls adjacent to the upper edge thereof to trap vapors in the space provided under said first bottom wall and to increase the stability of said roof section during flotation thereof.
  • a buoyant roof section for use in forming a floating roof for a storage tank, said roof section including a pair of upstanding generally parallel side walls and a pair of upstanding end walls, said side walls and said end walls being joined to form a continuous peripheral wall therearound, and a bottom wall closing the area defined by said peripheral wall, said bottom wall including a pair of longitudinally extending rectangular center portions joined along the longitudinally extending inner edges thereof and centrally of said bottom wall, said center portions being inclined upwardly from said inner edges and having on the longitudinally extending outer edges thereof depending side flanges, and means joining the junctures between said center portions and the associated side flanges to the adjacent side wall adjacent to the upper edge thereof to trap vapors in the space provided under said first bottom wall and to increase the stability of said roof section during flotation thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US683962A 1967-11-17 1967-11-17 Sectional floating roof and roof sections therefor Expired - Lifetime US3493143A (en)

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US68396267A 1967-11-17 1967-11-17

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US3493143A true US3493143A (en) 1970-02-03

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US683962A Expired - Lifetime US3493143A (en) 1967-11-17 1967-11-17 Sectional floating roof and roof sections therefor

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US (1) US3493143A (no)
AT (1) AT304019B (no)
BE (1) BE719335A (no)
DE (1) DE1784280A1 (no)
DK (1) DK119396B (no)
ES (1) ES356362A1 (no)
FR (1) FR1583544A (no)
GB (1) GB1179830A (no)
IL (1) IL30311A (no)
LU (1) LU56704A1 (no)
NL (1) NL6811404A (no)
NO (1) NO125226B (no)
SE (1) SE332395B (no)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774799A (en) * 1971-11-03 1973-11-27 Gen Am Transport Sectional floating roof and method of forming same
US3861555A (en) * 1972-12-22 1975-01-21 Ardell H Nelson Floating cover for a tank
US3943721A (en) * 1973-07-20 1976-03-16 Campagnie Francaise Des Petroles, Societe Anonyme Reservoir for storing hydrocarbon liquids and process for fabricating the same
US4018356A (en) * 1976-05-28 1977-04-19 Szasz I Emery Floating deck for liquid storage tank
USRE29270E (en) * 1972-12-22 1977-06-21 Floating cover for a tank
US4036394A (en) * 1973-03-19 1977-07-19 Aerojet-General Corporation Floating roof for liquid storage tanks
US4243151A (en) * 1979-07-02 1981-01-06 Bruening Robert A Floating roof penetrations with reduced vapor space seal
US5423446A (en) * 1993-04-20 1995-06-13 Johnson; Ronald G. Vapor seal for floating roof of liquid storage tank
US20040200835A1 (en) * 2001-08-06 2004-10-14 Zhenqi Song Oil storage tank equipped with a floating roof means of floating bed type
US20050072071A1 (en) * 2003-10-03 2005-04-07 Bonner Charles L. Tank cover with composite cover panels
US20150076150A1 (en) * 2013-08-01 2015-03-19 Travis Jordan Insulating tank cover
US11548725B2 (en) 2013-03-15 2023-01-10 Industrial & Environmental Concepts, Inc. Cover systems, tank covering methods, and pipe retention systems
US12222234B2 (en) 2021-02-08 2025-02-11 Zach CADWALLADER Isolated industrial float assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112441339A (zh) * 2019-08-29 2021-03-05 香港恒展国际有限公司 一种浮盘

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1493344A (en) * 1921-03-12 1924-05-06 Huff Wilson Sylvester Apparatus for disposing water in fireproof tanks
US1639625A (en) * 1926-02-07 1927-08-16 Afonin Ivan Rodionovitch Oil-storage tank
US1674039A (en) * 1924-07-05 1928-06-19 Clifton A Glass Sectional floating deck for oil tanks
US2750067A (en) * 1953-06-05 1956-06-12 John H Wiggins Pontoon type floating tank roof
US2804228A (en) * 1955-08-31 1957-08-27 Hartley Thomas Arthur Floating roof for storage tanks
US2973113A (en) * 1958-10-28 1961-02-28 Pittsburgh Des Moines Steel Weather seal
US3106310A (en) * 1960-10-07 1963-10-08 Texas Pipe Line Company Primary seal for floating tank roof
US3134501A (en) * 1961-07-07 1964-05-26 Union Tank Car Co Floating roof construction
FR1382329A (fr) * 1963-11-08 1964-12-18 Réservoir perfectionné de stockage de produits liquides

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1493344A (en) * 1921-03-12 1924-05-06 Huff Wilson Sylvester Apparatus for disposing water in fireproof tanks
US1674039A (en) * 1924-07-05 1928-06-19 Clifton A Glass Sectional floating deck for oil tanks
US1639625A (en) * 1926-02-07 1927-08-16 Afonin Ivan Rodionovitch Oil-storage tank
US2750067A (en) * 1953-06-05 1956-06-12 John H Wiggins Pontoon type floating tank roof
US2804228A (en) * 1955-08-31 1957-08-27 Hartley Thomas Arthur Floating roof for storage tanks
US2973113A (en) * 1958-10-28 1961-02-28 Pittsburgh Des Moines Steel Weather seal
US3106310A (en) * 1960-10-07 1963-10-08 Texas Pipe Line Company Primary seal for floating tank roof
US3134501A (en) * 1961-07-07 1964-05-26 Union Tank Car Co Floating roof construction
FR1382329A (fr) * 1963-11-08 1964-12-18 Réservoir perfectionné de stockage de produits liquides

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774799A (en) * 1971-11-03 1973-11-27 Gen Am Transport Sectional floating roof and method of forming same
US3861555A (en) * 1972-12-22 1975-01-21 Ardell H Nelson Floating cover for a tank
USRE29270E (en) * 1972-12-22 1977-06-21 Floating cover for a tank
US4036394A (en) * 1973-03-19 1977-07-19 Aerojet-General Corporation Floating roof for liquid storage tanks
US3943721A (en) * 1973-07-20 1976-03-16 Campagnie Francaise Des Petroles, Societe Anonyme Reservoir for storing hydrocarbon liquids and process for fabricating the same
US4018356A (en) * 1976-05-28 1977-04-19 Szasz I Emery Floating deck for liquid storage tank
US4243151A (en) * 1979-07-02 1981-01-06 Bruening Robert A Floating roof penetrations with reduced vapor space seal
US5423446A (en) * 1993-04-20 1995-06-13 Johnson; Ronald G. Vapor seal for floating roof of liquid storage tank
US20040200835A1 (en) * 2001-08-06 2004-10-14 Zhenqi Song Oil storage tank equipped with a floating roof means of floating bed type
US7225942B2 (en) * 2001-08-06 2007-06-05 Zhenqi Song Oil storage tank equipped with a floating bed type inner floating roof
US20050072071A1 (en) * 2003-10-03 2005-04-07 Bonner Charles L. Tank cover with composite cover panels
US11548725B2 (en) 2013-03-15 2023-01-10 Industrial & Environmental Concepts, Inc. Cover systems, tank covering methods, and pipe retention systems
US20150076150A1 (en) * 2013-08-01 2015-03-19 Travis Jordan Insulating tank cover
US9334106B2 (en) * 2013-08-01 2016-05-10 Travis Jordan Insulating tank cover
US12222234B2 (en) 2021-02-08 2025-02-11 Zach CADWALLADER Isolated industrial float assembly

Also Published As

Publication number Publication date
AT304019B (de) 1972-12-27
SE332395B (no) 1971-02-01
LU56704A1 (no) 1969-06-16
DK119396B (da) 1970-12-21
DE1784280A1 (de) 1971-10-07
GB1179830A (en) 1970-02-04
ES356362A1 (es) 1970-07-01
IL30311A (en) 1971-04-28
BE719335A (no) 1969-02-10
NO125226B (no) 1972-08-07
NL6811404A (no) 1969-05-20
IL30311A0 (en) 1968-09-26
FR1583544A (no) 1969-11-07

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BROWN-MINNEAPOLIS TANK & FABRICATING CO., P.O. BOX

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GATX CORPORATION, A NY CORP;REEL/FRAME:004320/0147

Effective date: 19840628