GB917310A - Magnetic seal for floating roof - Google Patents

Magnetic seal for floating roof

Info

Publication number
GB917310A
GB917310A GB3956/61A GB395661A GB917310A GB 917310 A GB917310 A GB 917310A GB 3956/61 A GB3956/61 A GB 3956/61A GB 395661 A GB395661 A GB 395661A GB 917310 A GB917310 A GB 917310A
Authority
GB
United Kingdom
Prior art keywords
roof
wall
flexible
shield
magnetic
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
Application number
GB3956/61A
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.)
Pittsburgh Des Moines Steel Co
Original Assignee
Pittsburgh Des Moines Steel Co
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 Pittsburgh Des Moines Steel Co filed Critical Pittsburgh Des Moines Steel Co
Publication of GB917310A publication Critical patent/GB917310A/en
Expired legal-status Critical Current

Links

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
    • B65D88/42—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle
    • B65D88/44—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle with magnetic means acting on the seal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

917,310. Floating roofs for tanks. PITTSBURGH-DES MOINES STEEL CO. Feb. 2, 1961 [Feb. 4, 1960], No. 3956/61. Class 69 (1). A liquid storage tank has a floating roof 12, 13, 14 with a seal comprising a weather shield 18 extending outward from its periphery to contact with its outer edge 19, the inner surface of the tank wall 10, inner 20 and outer 22 flexible curtain portions depending respectively from the inner and outer edges of the shield 18 adjacent the periphery of the roof and the inner tank wall surface, a flexible intermediate portion 24, and magnetic means 23 and 30 for holding the inner 20 and outer 22 curtain portions in sealing contact with the roof and the wall. The shield 18 is of rubber or the like with flexible edges and a relatively stiff central port, reinforced with ribs R, stiff enough to remain standing upwardly and outwardly when its edge 19 is above the top of the wall 10. Circumferentially spaced straps 25 on the curtain 20 loop over hooks 26 on the roof. The portion 24 is of greater width than the space between roof and wall to allow for eccentricity. The magnetic means 23 and 30 are annular strips of substantial width and small thickness attached to the curtains 20, 22. They are of a magnetic plastic material or are annular bands of flexible magnetic material as described in U.S.A. Specification 2,627,097. A plastic foam block resting on the portion 24 may act as a spacer between the bands 23 and 30 (Fig. 8, not shown).
GB3956/61A 1960-02-04 1961-02-02 Magnetic seal for floating roof Expired GB917310A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6764A US2981436A (en) 1960-02-04 1960-02-04 Magnetic seal for floating roof

Publications (1)

Publication Number Publication Date
GB917310A true GB917310A (en) 1963-01-30

Family

ID=21722458

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3956/61A Expired GB917310A (en) 1960-02-04 1961-02-02 Magnetic seal for floating roof

Country Status (2)

Country Link
US (1) US2981436A (en)
GB (1) GB917310A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105600185A (en) * 2015-10-21 2016-05-25 中国石油化工股份有限公司 Magnetic flexible sealing device and mounting method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119510A (en) * 1960-11-21 1964-01-28 John H Wiggins Sealing mechanisms for floating roofs for storage tanks
US3135415A (en) * 1962-01-23 1964-06-02 Dorcon Inc Floating roof seal
US3204809A (en) * 1962-10-05 1965-09-07 Lacy Mfg Company Free ring floating roof seal
US3255914A (en) * 1963-06-26 1966-06-14 Union Tank Car Co Seal
US11548725B2 (en) 2013-03-15 2023-01-10 Industrial & Environmental Concepts, Inc. Cover systems, tank covering methods, and pipe retention systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105600185A (en) * 2015-10-21 2016-05-25 中国石油化工股份有限公司 Magnetic flexible sealing device and mounting method thereof
CN105600185B (en) * 2015-10-21 2018-11-23 中国石油化工股份有限公司 A kind of magnetism soft sealer and its installation method

Also Published As

Publication number Publication date
US2981436A (en) 1961-04-25

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