Patent US470545A successfully refreshed from Google Patents.
Patent US3343796A successfully refreshed from Google Patents.
US3343796A
Expired / Lapsed
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Adjustable riser for sprinkler systems
Assignee: Mahogany Corp
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Filing: 1965-10-22
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Granted: 1967-09-26
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 William J Trickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:11
CPC Classifications
B; B05; B05B; B05B15/00; B05B15/70; B05B15/72; B05B15/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A VERTICAL RISER FOR USE IN AN UNDERGROUND SPRINKLER SYSTEM COMPRISING A LOWER TUBULAR SECTION, AN UPWARD TUBULAR SECTION TELESCOPED IN SAID LOWER SECTION FOR VERTICAL AND ROTATABLE MOVEMENT RELATIVE THERETO, A SEAL ASSEMBLY CARRIED BY SAID UPPER TUBULAR SECTION AND HAVING A RADIALLY EXPANSIBLE PACKING RING AND A VERTICAL PASSAGEWAY THERETHROUGH PROVIDING COMMUNICATION BETWEEN THE UPPER AND LOWER TUBULAR SECTION FOR PASSAGE OF LIQUID, SAID PASSAGEWAY ALSO DEFINING A KEYWAY EXTENDING VERTICALLY THROUGH THE SEAL ASSEMBLY, MEANS FOR EFFECTING RADIAL EXPANSION OF SAID RING INTO ENGAGEMENT WITH SAID LOWER SECTION WHEN SAID UPPER SECTION IS ROTATED RELATIVE TO SAID SEAL ASSEMBLY, AND AN ELONGATED KEY FASTENED TO SAID LOWER SECTION SO AS TO BE NON-ROTATABLE RELATIVE TO SAID LOWER SECTION, SAID KEY EXTENDING VERTICALLY THROUGH SAID KEYWAY SO AS TO RESTRAIN ROTATION OF SAID SEAL ASSEMBLY RELATIVE TO SAID LOWER SECTION.
Claim 2
Dependent Claim
142 words
A VERTICAL RISER FOR USE IN AN UNDERGROUND SPRINKLER SYSTEM COMPRISING A LOWER TUBULAR SECTION, AN UPWARD TUBULAR SECTION TELESCOPED IN SAID LOWER SECTION FOR VERTICAL AND ROTATABLE MOVEMENT RELATIVE THERETO, A SEAL ASSEMBLY CARRIED BY SAID UPPER TUBULAR SECTION AND HAVING A RADIALLY EXPANSIBLE PACKING RING AND A VERTICAL PASSAGEWAY THERETHROUGH PROVIDING COMMUNICATION BETWEEN THE UPPER AND LOWER TUBULAR SECTION FOR PASSAGE OF LIQUID, SAID PASSAGEWAY ALSO DEFINING A KEYWAY EXTENDING VERTICALLY THROUGH THE SEAL ASSEMBLY, MEANS FOR EFFECTING RADIAL EXPANSION OF SAID RING INTO ENGAGEMENT WITH SAID LOWER SECTION WHEN SAID UPPER SECTION IS ROTATED RELATIVE TO SAID SEAL ASSEMBLY, AND AN ELONGATED KEY FASTENED TO SAID LOWER SECTION SO AS TO BE NON-ROTATABLE RELATIVE TO SAID LOWER SECTION, SAID KEY EXTENDING VERTICALLY THROUGH SAID KEYWAY SO AS TO RESTRAIN ROTATION OF SAID SEAL ASSEMBLY RELATIVE TO SAID LOWER SECTION.
References Cited (Backward Citations)
US3084869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |