Patent US4706309A successfully refreshed from Google Patents.
US4706309A
Expired / Lapsed
US
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Automatic rim flow water level control system for gutters
Assignee: KDI SYLVAN POOLS Inc A CORP OF DE
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Filing: 1986-12-01
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Granted: 1987-11-17
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Expires: 2006-12-01
Abstract
Abstract An automatic rim flow water level control system for gutters is provided, for use in swimming pools, which includes a peripheral gutter having at least one weir chamber on its pool side wall, the wall having a plurality of vertically extending elongated water entrance slots communicating with the pool weir chamber, a plurality of vertical elongated water exit slots through the top rim of the gutter wall opposite to the pool side water entrance slots, a plurality of elongated water exit slots through the weir chamber wall below the top rim slots, an elongated float carried in the weir chamber, which float is responsive to the water level in the pool, to permit water to flow through the slots into the gutter for skimming, and into the weir chamber for float positioning and water skimming control, the weir chamber bottom wall having orifices to provide for controlled leakage of water out of the chamber into the gutter, from which it is removed, filtered and returned to the pool.
Inventors
- 👤 William A. van den Broek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:25
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/12; E04H4/1209; E04H4/1218; E04H4/1227
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
201 words
An automatic rim flow water level control system for swimming pools gutters which is responsive to the level of water in the pool, said pool including a perimeter gutter having a front wall with a rim, which system comprises at least one weir chamber open at the top and engaged with the front wall of the gutter, a plurality of vertical elongated water entrance openings through the front wall of the gutter, a plurality of vertical elongated water exit openings through the rim of the gutter behind the front wall slots, said weir chamber having a rear wall, a plurality of vertically elongated water exit openings in said chamber rear wall, said weir chamber having a horizontal bottom wall, said chamber having vertical end walls connected to said rear float carried in said weir chamber, said float's position in said chamber being responsive only to said pool water level, and thereby determining the flow of water into said entrance slots and out said exit slots into said gutter for removal, and said bottom wall, and controlled water leakage means in said bottom wall to permit water to exit said gutter below said float to prevent said float from becoming water bound.
Claim 2
Dependent Claim
201 words
An automatic rim flow water level control system for swimming pools gutters which is responsive to the level of water in the pool, said pool including a perimeter gutter having a front wall with a rim, which system comprises at least one weir chamber open at the top and engaged with the front wall of the gutter, a plurality of vertical elongated water entrance openings through the front wall of the gutter, a plurality of vertical elongated water exit openings through the rim of the gutter behind the front wall slots, said weir chamber having a rear wall, a plurality of vertically elongated water exit openings in said chamber rear wall, said weir chamber having a horizontal bottom wall, said chamber having vertical end walls connected to said rear float carried in said weir chamber, said float's position in said chamber being responsive only to said pool water level, and thereby determining the flow of water into said entrance slots and out said exit slots into said gutter for removal, and said bottom wall, and controlled water leakage means in said bottom wall to permit water to exit said gutter below said float to prevent said float from becoming water bound.
Claim 3
Dependent Claim
40 words
An automatic rim flow water level control system for gutters as defined in claim 1 in which said front wall openings extend into said rim a predetermined distance, and said rim gutter openings extend into said rim a predetermined distance.
Claim 4
Dependent Claim
28 words
An automatic rim flow water level control system for gutters as defined in claim 1 in which said float is of tubular construction and filled with floatation material.
Claim 5
Dependent Claim
34 words
An automatic rim flow water level control system for gutters as defined in claim 1 in which said controlled water leakage means is a plurality of openings in said bottom wall of said chamber.
Claim 6
Dependent Claim
28 words
An automatic rim flow water level control system for gutters as defined in claim 1 in which said gutter and said weir chamber are constructed of stainless steel.
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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) | 1990-11-16 | 1991-05-18 | 1991-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-16 | 1995-05-18 | 1995-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-16 | 1999-05-18 | 1999-11-17 | $7700.00 | Window Closed / Lapsed |