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US3885584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot water system
Assignee: Individual
•
Filing: 1974-01-07
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Granted: 1975-05-27
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Expires: 1994-01-07
Abstract
Abstract Apparatus and control therefor senses the temperature of water at a hot water line discharge point and, upon activation, causes the line to drain until water of a preselected temperature reaches the discharge point. Further apparatus is provided in combination to blend warm water of an initial preselected temperature with cooler water in a predetermined proportion to provide a continuing discharge of warm water in a comfortable temperature range for human convenience.
Inventors
- 👤 Walter L Hock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:31
CPC Classifications
F; F16; F16K; F16K19/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/6416; Y10T137/8593; Y10T137/86389; Y10T137/86445; Y10T137/86461
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
100 words
A hot water system comprising a drain, a hot water line, a faucet having a given flow capacity and disposed in said line, a valve disposed in said line ahead of said faucet and arranged to cause water in said line to bypass said faucet and be discharged directly to said drain from said line when said valve is open, said valve being electrically operated and having a flow capacity greater than that of said faucet, a manually actuated switch for selectively causing the opening of said valve, means for sensing the temperature of the water in said line, control
Claim 2
Dependent Claim
100 words
A hot water system comprising a drain, a hot water line, a faucet having a given flow capacity and disposed in said line, a valve disposed in said line ahead of said faucet and arranged to cause water in said line to bypass said faucet and be discharged directly to said drain from said line when said valve is open, said valve being electrically operated and having a flow capacity greater than that of said faucet, a manually actuated switch for selectively causing the opening of said valve, means for sensing the temperature of the water in said line, control
Claim 3
Dependent Claim
43 words
A system in accordance with claim 1 and including a cold water line, said system further comprising single operating means associated with said faucet for adjustably blending water from the hot and cold water lines in predetermined portions for discharge from said faucet.
Claim 4
Dependent Claim
106 words
A hot water system comprising a drain, a hot water line, a faucet in said line, an electrically operated valve disposed in said line ahead of said faucet and arranged to discharge water from said line directly to said drain and bypass said faucet when said valve is open, a manually actuated switch for selectively causing the opening of said valve, means for sensing the temperature of the water in said line, control means responsive to said temperature sensing means for causing the closing of said valve when a predetermined water temperature is reached, and means for providing a signal when said predetermined temperature is reached.
Claim 5
Dependent Claim
106 words
A hot water system comprising a drain, a hot water line, a faucet in said line, an electrically operated valve disposed in said line ahead of said faucet and arranged to discharge water from said line directly to said drain and bypass said faucet when said valve is open, a manually actuated switch for selectively causing the opening of said valve, means for sensing the temperature of the water in said line, control means responsive to said temperature sensing means for causing the closing of said valve when a predetermined water temperature is reached, and means for providing a signal when said predetermined temperature is reached.
Claim 6
Dependent Claim
110 words
An electrical circuit for controlling the temperature of water discharged from a hot water line, said circuit comprising a stepdown voltage transformer, relay on the low voltage side of said transformer, a normally open momentary type pushbutton switch for energizing said relay, a normally closed momentary type pushbutton switch for de-energizing said relay, an adjustable thermostatically controlled switch responsive to the temperature of the water in said hot water line for de-energizing said relay when a predetermined water temperature is reached solenoid valve means responsive to said relay, and means for providing a signal responsive to said thermostatic switch for indicating when said predetermined temperature of the water is reached.
Claim 7
Dependent Claim
110 words
An electrical circuit for controlling the temperature of water discharged from a hot water line, said circuit comprising a stepdown voltage transformer, relay on the low voltage side of said transformer, a normally open momentary type pushbutton switch for energizing said relay, a normally closed momentary type pushbutton switch for de-energizing said relay, an adjustable thermostatically controlled switch responsive to the temperature of the water in said hot water line for de-energizing said relay when a predetermined water temperature is reached solenoid valve means responsive to said relay, and means for providing a signal responsive to said thermostatic switch for indicating when said predetermined temperature of the water is reached.
Claim 8
Dependent Claim
20 words
An electrical circuit in accordance with claim 4 wherein said switching means further includes timer means for controlling said relay.
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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |