US4574405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water level control device
Assignee: Individual
•
Filing: 1984-04-26
•
Granted: 1986-03-11
•
Expires: 2004-04-26
Abstract
Abstract A water level control device is adapted to be detachably mounted within a swimming pool at the desired water level. A float controlled valve is mounted within the housing which is responsive to changes in the water level of the swimming pool and which is provided with a water inlet and outlet located outside of the housing so as to prevent turbulence within the housing. A suitable air vent is provided adjacent the top of the housing above the water line and restricted water inlet apertures are provided adjacent the bottom of the housing below the water level to maintain the water level within the housing at the same level as the water level in the pool.
Inventors
- 👤 Joseph Tams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:27
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/12; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/742; Y10T137/7439
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
115 words
A water level control device comprising housing means, mounting means for adjustably and detachably mounting said housing means in a swimming pool adjacent the desired water level and float controlled valve means mounted in said housing means, said float controlled valve means having water inlet means extending outwardly of said housing means for connection to an external water supply and water outlet means extending outwardly of said housing means for discharging water from said valve means directly into the swimming pool to prevent turbulence within said housing means, said housing means having restricted water inlet apertures disposed adjacent the bottom of the housing means to provide for the flow of water into the housing means.
Claim 2
Dependent Claim
115 words
A water level control device comprising housing means, mounting means for adjustably and detachably mounting said housing means in a swimming pool adjacent the desired water level and float controlled valve means mounted in said housing means, said float controlled valve means having water inlet means extending outwardly of said housing means for connection to an external water supply and water outlet means extending outwardly of said housing means for discharging water from said valve means directly into the swimming pool to prevent turbulence within said housing means, said housing means having restricted water inlet apertures disposed adjacent the bottom of the housing means to provide for the flow of water into the housing means.
Claim 3
Dependent Claim
56 words
A water level control device as set forth in claim 1 wherein said housing means is comprised of a flat mounting plate having a plurality of apertures therein and a cover having a curved front wall extending from one side of said mounting plate to the other side thereof, and a top wall having vent means.
Claim 4
Dependent Claim
49 words
A water level control device as set forth in claim 2 wherein said mounting means are comprised of a pair of arcuate clamping plates adapted to engage the upright post of a pool leader and fastening means for securing arcuate clamping plates to said apertures in said mounting plate.
Claim 5
Dependent Claim
81 words
A water level control device as set forth in claim 2 wherein said apertures in said mounting plate are comprised of a pair of elongated vertically extending parallel slots and said mounting means are comprised of angled plate means adapted to extend over a horizontal edge of a swimming pool and first means for connecting said angled pipe means to said slots in said mounting plate and second mounting means for securing said angled plate means to said swimming pool structure.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-10 | 1989-09-09 | 1990-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-10 | 1993-09-09 | 1994-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-10 | 1997-09-09 | 1998-03-11 | $7700.00 | Window Closed / Lapsed |