Patent US3386460A successfully refreshed from Google Patents.
US3386460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprinkler system with automatic pressure relief valve
Assignee: Individual
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Filing: 1965-02-01
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Granted: 1968-06-04
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Expires: 1985-02-01
Abstract
No abstract record available.
Inventors
- 👤 Ralph K Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:04
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/08; F16K17/085; A; A01; A01G; A01G25/00; A01G25/16; A01G25/162; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/3294; Y10T137/3331; Y10T137/8593; Y10T137/86389; Y10T137/86445
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A VENTABLE WATER DISTRIBUTION SYSTEM, COMPRISING: A MASTER VALVE HAVING AN INLET FOR CONNECTION WITH A WATER SUPPLY PIPE, SAID MASTER VALVE ALSO HAVING AN OUTLET; WATER DISTRIBUTION PIPE MEANS CONNECTED WITH SAID OUTLET OF SAID MASTER VALVE; A VENT PIPE CONNECTED WITH SAID DISTRIBUTIONN PIPE MEANS; A RELIEF VALVE CONNECTED WITH SAID VENT PIPE AT AN ELEVATION ABOVE SAID DISTRIBUTION PIPE MEANS; AND MEANS ACTUATABLE INDEPENDENTLY OF THE PRESSURE CONDITIONS ON THE INLET SIDE OF THE MASTER VALVE AND IN SAID DISTRIBUTION PIPE MEANS CONNECTED WITH SAID MASTER AND RELIEF VALVES AND OPERABLE TO EFFECT CLOSING OF SAID MASTER VALVE, TO CUT OFF THE SUPPLY OF WATER TO SAID DISTRIBUTION PIPE MEANS AND TO SIMULTANEOUSLY OPEN SAID RELIEF VALVE TO RELIEVE THE PRESSURE IN SAID DISTRIBUTION PIPE MEANS THROUGH SAID VENT PIPE WHENEVER SAID MASTER VALVE IS CLOSED.
Claim 2
Dependent Claim
139 words
A VENTABLE WATER DISTRIBUTION SYSTEM, COMPRISING: A MASTER VALVE HAVING AN INLET FOR CONNECTION WITH A WATER SUPPLY PIPE, SAID MASTER VALVE ALSO HAVING AN OUTLET; WATER DISTRIBUTION PIPE MEANS CONNECTED WITH SAID OUTLET OF SAID MASTER VALVE; A VENT PIPE CONNECTED WITH SAID DISTRIBUTIONN PIPE MEANS; A RELIEF VALVE CONNECTED WITH SAID VENT PIPE AT AN ELEVATION ABOVE SAID DISTRIBUTION PIPE MEANS; AND MEANS ACTUATABLE INDEPENDENTLY OF THE PRESSURE CONDITIONS ON THE INLET SIDE OF THE MASTER VALVE AND IN SAID DISTRIBUTION PIPE MEANS CONNECTED WITH SAID MASTER AND RELIEF VALVES AND OPERABLE TO EFFECT CLOSING OF SAID MASTER VALVE, TO CUT OFF THE SUPPLY OF WATER TO SAID DISTRIBUTION PIPE MEANS AND TO SIMULTANEOUSLY OPEN SAID RELIEF VALVE TO RELIEVE THE PRESSURE IN SAID DISTRIBUTION PIPE MEANS THROUGH SAID VENT PIPE WHENEVER SAID MASTER VALVE IS CLOSED.
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) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |