Patent US4346484A successfully refreshed from Google Patents.
US4346484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming pool inlet location control
Assignee: Individual
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Filing: 1980-09-15
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Granted: 1982-08-31
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Expires: 2000-09-15
Abstract
Abstract A swimming pool inlet location control is presented. The control comprises a flexible tube which is coupled between the prior art swimming pool inlet and the location where it is desired to bring in the incoming water. The flexible tube includes coupled to it a weight and a float which are utilized by the operator to place the inlet at exactly the point where it is desired. The tube includes a variable size quick release coupling means capable of coupling an adaptable to all pool return lines.
Inventors
- 👤 John H. Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:29
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
122 words
A swimming pool water inlet selective variable location control retrofit device, comprising: a tube fabricated from an impervious material such as polyvinylchloride and having two open ends; removable coupling means coupling the first end of the tube in a substantially leak-proof coupling to a prior art pool return line water exit; a float coupled in a removable coupling near the second end of the tube; and a weight, coupled in a removable coupling near the second end of the tube, the weight negative buoyancy and coupling location on the tube and float positive buoyancy and coupling location on the tube selected so as to select the depth at which the second tube exit is retained in the water of the swimming pool.
Claim 2
Dependent Claim
122 words
A swimming pool water inlet selective variable location control retrofit device, comprising: a tube fabricated from an impervious material such as polyvinylchloride and having two open ends; removable coupling means coupling the first end of the tube in a substantially leak-proof coupling to a prior art pool return line water exit; a float coupled in a removable coupling near the second end of the tube; and a weight, coupled in a removable coupling near the second end of the tube, the weight negative buoyancy and coupling location on the tube and float positive buoyancy and coupling location on the tube selected so as to select the depth at which the second tube exit is retained in the water of the swimming pool.
Claim 3
Dependent Claim
98 words
The invention of claim 1, wherein: the tube is flexible; the coupling means is of selectively variable size, quick release, and automatically released if water pressure exceeds a preselected pressure; the weight negative buoyancy exceeds the positive buoyancy of the float which float is coupled very close to the tube exit; and the depth of the water inlet is selectively determined by the length of the tube, the distance from the tube exit at which the weight is coupled to the tube, and the depth at which the coupling means is coupled to the prior art water outlet.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-30 | 1986-03-01 | 1986-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-30 | 1990-03-01 | 1990-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-30 | 1994-03-01 | 1994-08-31 | $7700.00 | Window Closed / Lapsed |