US3871033A - Swimming pool covers - Google Patents

Swimming pool covers Download PDF

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Publication number
US3871033A
US3871033A US335958A US33595873A US3871033A US 3871033 A US3871033 A US 3871033A US 335958 A US335958 A US 335958A US 33595873 A US33595873 A US 33595873A US 3871033 A US3871033 A US 3871033A
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United States
Prior art keywords
membrane
cover
pool
weighted
line
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
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US335958A
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English (en)
Inventor
Sidney Charles Leddra Bartlett
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Individual
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Individual
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Publication of US3871033A publication Critical patent/US3871033A/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/06—Safety devices; Coverings for baths
    • E04H4/065—Floors adjustable in height
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/06—Safety devices; Coverings for baths
    • E04H4/10—Coverings of flexible material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/06—Safety devices; Coverings for baths
    • E04H4/10—Coverings of flexible material
    • E04H4/103—Coverings of flexible material with inflatable chambers

Definitions

  • a cover for a swimming pool comprises a flexible imperforate membrane weighted and shaped so that it will rest submerged on the bottom of the pool, loading means on a single line joining oppposite edges of the cover to define a weighted line across the membrane, means defining air pockets carried by the membrane which when filled with air cause the membrane to float freely and evenly on the surface of the water in the pool, and means for emptying the pockets of air to cause the membrane to sink firstly along the weighted line and the remainder of the membrane to bend upwardly to allow water to bypass the membrane.
  • the cover may be provided with hoses connecting points on its periphery with contiguous anchorage points on the edge of the pool, each line being of a length to just reach the bottom of the pool when hanging vertically from its anchorage point.
  • the invention thus provides a floating cover for the water in a swimming pool which cover is adapted to be rendered heavierthan water so as to sink to the bottom and give accses to the water and subsequently to be made buoyant and rise to the surface again.
  • FIG. 2 is a fragmentary cross section of a flexible inflatable cover illustrating a particular method of fabrication
  • FIG. 3 is a view similar to FIG. 2 illustrating another method.
  • FIG. 1 the outline of a swimming pool is indicated by the broken lines 1 and a cover 2, adapted to float on the surface of the water in a pool, consists of a polyvinylchloride (PVC) inflatable mattress divided transversely into four sections each connected and being capable of being inflated with air through a respective flexible hose 3.
  • PVC polyvinylchloride
  • the hoses 3 are each connected at one end to a corner of the cover and at the other end to an anchorage on the edge of the pool from whence by means of further piping 3b and manifolds 3c they are connected to an electrically driven reversible air pump 3d.
  • the cover is shown inflated and floating on the surface of the water but by simply switching on the pump 3d in the direction to evacuate the air the cover ceases to be buoyant and sinks to the bottom.
  • the PVC material may be loaded with a heavy filler and/or thin lead plates may be incorporated in pockets formed in the cover. It will be appreciated that when the cover sinks the whole of the water in the pool will be required to pass from below to above the cover and unless a very ample free surface is allowed around the edge of the cover it may be desirable to load the cover mainly along the smaller axis 4 and progressively less towards the ends. This will ensure that the center sinks first and the ends bend upwards to facilitate the transfer of water. Control of the movement of the cover may also be effected by differential pumping of the hoses 3 connected to the separate sections of the cover.
  • each hose 3 is carefully adjusted so as to be taut when the cover is resting on the bottom so as to minimise skewing of the cover relatively to the pool.
  • the flexible cover of FIG. 1 may be fabricated similarly to a conventional rubber or plastic air mattress but the methods shown in FIGS. 2 and 3 are preferred.
  • the cover comprises a sheet 24 of heavily loaded PVC such as is used for floor coverings to the underside of which an indented sheet 25 of thin plasticised PVC is welded at intervals quilt fashion to form blisters.
  • the sheet 24 has a series of thin walled plasticised PVC tubes 26 located by flexible straps 27 to its under surface. This latter type of fabrication involves less welding and enables the buoyancy chambers (the tubes 26) to be renewed if necessary.
  • whatever plastic material is used in any of the embodiments of the present invention it will be selected to have the maximum resistance to the chemicals normally used in swimming pools as is consistent with the necessary physical requirements.
  • a cover for a swimming pool comprising:
  • iii means defining air pockets carried by said membrane which when filled with air cause the membrane to float freely and evenly on the surface of the water in the pool and
  • iv. means for emptying said pockets of air to cause the membrane to sink firstly along said line weighted and the remainder of the membrane to bend upwards to allow water to by-pass the membrane.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
US335958A 1972-02-26 1973-02-26 Swimming pool covers Expired - Lifetime US3871033A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898372 1972-02-26

Publications (1)

Publication Number Publication Date
US3871033A true US3871033A (en) 1975-03-18

Family

ID=9863095

Family Applications (1)

Application Number Title Priority Date Filing Date
US335958A Expired - Lifetime US3871033A (en) 1972-02-26 1973-02-26 Swimming pool covers

Country Status (2)

Country Link
US (1) US3871033A (fr)
FR (1) FR2173606A5 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000527A (en) * 1975-08-26 1977-01-04 Vinyl-Fab Industries, Inc. Swimming pool cover floating support
US4059095A (en) * 1975-04-09 1977-11-22 Volkswagenwerk Aktiengesellschaft Device for utilizing the heat energy of solar radiation
US4151617A (en) * 1976-12-21 1979-05-01 Kinzel Augustus B Swimming pool cover
US4229843A (en) * 1978-07-18 1980-10-28 Bombardier Limited Pool floor
US4284059A (en) * 1976-09-03 1981-08-18 Thomason Harry E Heat storage and heat exchanger
US4364131A (en) * 1979-08-17 1982-12-21 Clerk Robert C Liquid reservoir
US4422193A (en) * 1982-04-05 1983-12-27 Kravath Ricahrd E Partitioning device and method for pools
US5144704A (en) * 1990-11-01 1992-09-08 Genzel Charles C J Swimming pool cover with multiple air compartments
US5555877A (en) * 1993-04-16 1996-09-17 George S. Lockwood Cover for pond used to collect solar radiation
US20020073629A1 (en) * 1998-12-09 2002-06-20 John Finell Tarpaulin
US20070130680A1 (en) * 2005-12-08 2007-06-14 Ami Kolechstein Floatable swimming pool cover
US20100186271A1 (en) * 2006-12-07 2010-07-29 Qun Zheng Lenticular image display

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT69990A (en) * 1978-08-04 1979-08-01 Rowney Michael Hugh Swimming pool cover
FR2434913A1 (fr) * 1978-08-30 1980-03-28 Maupas Alain Perfectionnements aux couvertures de reserves d'eau, notamment de piscines
WO1981000129A1 (fr) * 1979-07-03 1981-01-22 Kirk C J Eng Ltd Couverture de piscine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1918437A (en) * 1932-09-12 1933-07-18 Carbondale Machine Co Convertirle swimming pool and skating rimk
US3000017A (en) * 1959-07-10 1961-09-19 Leonard A Skovira Safety-net for swimming pools
US3184764A (en) * 1963-10-22 1965-05-25 Cascade Ind Inc Swimming pool cover
US3313443A (en) * 1964-06-26 1967-04-11 Globe Linings Inc Floating cover for a liquid storage reservoir
US3366977A (en) * 1967-03-23 1968-02-06 Carl A. Koehler Swimming pool cover
US3423768A (en) * 1965-10-22 1969-01-28 Lee E Glenn Safety platform for swimming pools
US3579657A (en) * 1969-09-04 1971-05-25 Pilarski Anthony J Swimming pool cover drain
US3734113A (en) * 1969-10-14 1973-05-22 B Madden Attitude controlled valve

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1918437A (en) * 1932-09-12 1933-07-18 Carbondale Machine Co Convertirle swimming pool and skating rimk
US3000017A (en) * 1959-07-10 1961-09-19 Leonard A Skovira Safety-net for swimming pools
US3184764A (en) * 1963-10-22 1965-05-25 Cascade Ind Inc Swimming pool cover
US3313443A (en) * 1964-06-26 1967-04-11 Globe Linings Inc Floating cover for a liquid storage reservoir
US3423768A (en) * 1965-10-22 1969-01-28 Lee E Glenn Safety platform for swimming pools
US3366977A (en) * 1967-03-23 1968-02-06 Carl A. Koehler Swimming pool cover
US3579657A (en) * 1969-09-04 1971-05-25 Pilarski Anthony J Swimming pool cover drain
US3734113A (en) * 1969-10-14 1973-05-22 B Madden Attitude controlled valve

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059095A (en) * 1975-04-09 1977-11-22 Volkswagenwerk Aktiengesellschaft Device for utilizing the heat energy of solar radiation
US4000527A (en) * 1975-08-26 1977-01-04 Vinyl-Fab Industries, Inc. Swimming pool cover floating support
US4284059A (en) * 1976-09-03 1981-08-18 Thomason Harry E Heat storage and heat exchanger
US4151617A (en) * 1976-12-21 1979-05-01 Kinzel Augustus B Swimming pool cover
US4229843A (en) * 1978-07-18 1980-10-28 Bombardier Limited Pool floor
US4364131A (en) * 1979-08-17 1982-12-21 Clerk Robert C Liquid reservoir
US4422193A (en) * 1982-04-05 1983-12-27 Kravath Ricahrd E Partitioning device and method for pools
US5144704A (en) * 1990-11-01 1992-09-08 Genzel Charles C J Swimming pool cover with multiple air compartments
US5555877A (en) * 1993-04-16 1996-09-17 George S. Lockwood Cover for pond used to collect solar radiation
US20020073629A1 (en) * 1998-12-09 2002-06-20 John Finell Tarpaulin
US20070130680A1 (en) * 2005-12-08 2007-06-14 Ami Kolechstein Floatable swimming pool cover
US7845029B2 (en) 2005-12-08 2010-12-07 Ami Kolechstein Floatable swimming pool cover
US20100186271A1 (en) * 2006-12-07 2010-07-29 Qun Zheng Lenticular image display
US7971377B2 (en) * 2006-12-07 2011-07-05 Qun Zheng Lenticular image display

Also Published As

Publication number Publication date
FR2173606A5 (fr) 1973-10-05

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