Patent US4697614A successfully refreshed from Google Patents.
US4697614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water conservation system
Assignee: Individual
•
Filing: 1985-09-10
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Granted: 1987-10-06
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Expires: 2005-09-10
Abstract
Abstract The discharge ends of hot and cold water pipes are provided with valved outlets discharging into a common single water outlet and a by-pass pipe communicates the hot and cold water pipes upstream from but reasonably closely adjacent the hot and cold water outlets. A water accumulator is communicated with a mid-length portion of the by-pass pipe, a remotely operable flow-control valve is serially connected in the by-pass pipe intermediate the accumulator and the hot water pipe and an adjustable pressure regulator is serially connected in the cold water pipe closely upstream from the by-pass pipe.
Inventors
- 👤 Debora L. Powers
- 👤 John G. Powers
- 👤 Eugene L. Rogina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:13
CPC Classifications
F; F24; F24D; F24D17/00; E; E03; E03B; E03B11/00; E03B11/02; Y; Y02; Y02A; Y02A20/00; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6497
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
159 words
A water conservation system for use in a water useage location in which valved hot and cold water outlets are located and wherein the outlet ends of hot and cold water supply lines of substantially the same pressure are operatively connected to said outlets, said system including a by-pass line with respective ends communicating said hot and cold water supply lines upstream from but reasonably adjacent said outlets, a remotely operable flow-control valve serially connected in said by-pass line with water accumulator means, said water accumulator means communicated with the interior of said by-pass line on the side of said control valve adjacent said cold water line, and a pressure regulator connected in said cold water line upstream from the point of communication of said by-pass line with said cold water line and operative to limit the pressure in said cold water line downstream from said pressure regulator to a pressure at least somewhat below the first mentioned pressure.
Claim 2
Dependent Claim
159 words
A water conservation system for use in a water useage location in which valved hot and cold water outlets are located and wherein the outlet ends of hot and cold water supply lines of substantially the same pressure are operatively connected to said outlets, said system including a by-pass line with respective ends communicating said hot and cold water supply lines upstream from but reasonably adjacent said outlets, a remotely operable flow-control valve serially connected in said by-pass line with water accumulator means, said water accumulator means communicated with the interior of said by-pass line on the side of said control valve adjacent said cold water line, and a pressure regulator connected in said cold water line upstream from the point of communication of said by-pass line with said cold water line and operative to limit the pressure in said cold water line downstream from said pressure regulator to a pressure at least somewhat below the first mentioned pressure.
Claim 3
Dependent Claim
29 words
The system of claim 1 wherein said flow-control valve comprises a solenoid actuated valve, and an actuator for said solenoid actuated valve located adjacent said valved hot water outlet.
Claim 4
Dependent Claim
14 words
The system of claim 1 wherein said pressure regulator comprises an adjustable pressure regulator.
Claim 5
Dependent Claim
18 words
The system of claim 1 wherein said hot and cold water outlets open into a single water outlet.
Claim 6
Dependent Claim
29 words
The system of claim 4 wherein said flow-control valve comprises a solenoid actuated valve, and an actuator for said solenoid actuated valve located adjacent said valved hot water outlet.
Claim 7
Dependent Claim
14 words
The system of claim 5 wherein said pressure regulator comprises an adjustable pressure regulator.
References Cited (Backward Citations)
US1010052A
Cited
US1522120A
Cited
US2832695A
Cited
US2842155A
Cited
US3511280A
Cited
US3604456A
Cited
US3741195A
Cited
US4160461A
Cited
US4201518A
Cited
US4321943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-05 | 1991-04-06 | 1991-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-05 | 1995-04-06 | 1995-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-05 | 1999-04-06 | 1999-10-06 | $7700.00 | Window Closed / Lapsed |