Patent US3080000A successfully refreshed from Google Patents.
US3080000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry pendant sprinklers
Assignee: Star Sprinkler Corp
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Filing: 1961-07-19
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Granted: 1963-03-05
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Expires: 1981-07-19
Abstract
No abstract record available.
Inventors
- 👤 Fred A Gloeckler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:19
CPC Classifications
A; A62; A62C; A62C37/00; A62C37/08; A62C37/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A SPRINKLER HAVING A TUBULAR MEMBER WITH ONE END FOR CONNECTION TO A SUPPLY OF FLUID, A CLOSURE MEMBER FOR CLOSING THE OTHER END THEREOF, A TEMPERATURE RESPONSIVE ELEMENT FOR RETAINING SAID CLOSURE MEMBER IN POSITION, SAID TUBULAR MEMBER HAVING AN INTERIOR CYLINDRICAL WALL PORTION AND AN ADDITIONAL ENLARGED CYLINDRICAL BORE WITH A TRANSVERSE FACE, A VALVE MEMBER IN THE UPPER END OF SAID TUBULAR MEMBER INCLUDING A CYLINDRICAL PISTON HAVING AN END FACE EXPOSED TO THE PRESSURE OF THE FLUID FROM SAID SUPPLY AND HAVING A PERIPHERAL PORTION IN ENGAGEMENT WITH SAID WALL PORTION SEALING SAID END OF SAID TUBULAR MEMBER AGAINST ACCESS OF FLUID FROM SAID SUPPLY, SAID VALVE MEMBER BEING DOWNWARDLY MOVABLE WITHIN SAID TUBULAR MEMBER, AND MEMBERS IN SAID TUBULAR MEMBER FOR RETAINING SAID VALVE MEMBER IN FLUID FLOW PREVENTING POSITION, INCLUDING A PLURALITY OF RESTRAINING MEMBERS IN SAID CYLINDRICAL BORE IN ENGAGEMENT WITH SAID PISTON AND SAID TRANSVERSE FACE, AND A CONTROL TUBE RETAINING SAID RESTRAINING MEMBERS IN HOLDING POSITIONS.
Claim 2
Dependent Claim
165 words
A SPRINKLER HAVING A TUBULAR MEMBER WITH ONE END FOR CONNECTION TO A SUPPLY OF FLUID, A CLOSURE MEMBER FOR CLOSING THE OTHER END THEREOF, A TEMPERATURE RESPONSIVE ELEMENT FOR RETAINING SAID CLOSURE MEMBER IN POSITION, SAID TUBULAR MEMBER HAVING AN INTERIOR CYLINDRICAL WALL PORTION AND AN ADDITIONAL ENLARGED CYLINDRICAL BORE WITH A TRANSVERSE FACE, A VALVE MEMBER IN THE UPPER END OF SAID TUBULAR MEMBER INCLUDING A CYLINDRICAL PISTON HAVING AN END FACE EXPOSED TO THE PRESSURE OF THE FLUID FROM SAID SUPPLY AND HAVING A PERIPHERAL PORTION IN ENGAGEMENT WITH SAID WALL PORTION SEALING SAID END OF SAID TUBULAR MEMBER AGAINST ACCESS OF FLUID FROM SAID SUPPLY, SAID VALVE MEMBER BEING DOWNWARDLY MOVABLE WITHIN SAID TUBULAR MEMBER, AND MEMBERS IN SAID TUBULAR MEMBER FOR RETAINING SAID VALVE MEMBER IN FLUID FLOW PREVENTING POSITION, INCLUDING A PLURALITY OF RESTRAINING MEMBERS IN SAID CYLINDRICAL BORE IN ENGAGEMENT WITH SAID PISTON AND SAID TRANSVERSE FACE, AND A CONTROL TUBE RETAINING SAID RESTRAINING MEMBERS IN HOLDING POSITIONS.
References Cited (Backward Citations)
US2180258A
Cited
US3007528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |