Patent US3207446A successfully refreshed from Google Patents.
US3207446A
Expired / Lapsed
US
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Sprinkler head for water sprinkling systems
Assignee: Individual
•
Filing: 1963-07-25
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Granted: 1965-09-21
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Expires: 1983-07-25
Abstract
No abstract record available.
Inventors
- 👤 Dyck Gerhard Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:35
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/26; B05B1/262; B05B1/265; B05B1/12; B05B1/30; B05B1/3033; B05B1/3073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A SPRINKLER FOR ATTACHMENT ON A PIPE END FORMING A TERMINUS OF A SPRINKLER SYSTEM, INCLUDING A CYLINDRICAL VALVE CASING ATTACHABLE ON THE PIPE EEND AND A VALVE STEM THREADED IN THE BORE OF THE VALVE CASING, SAID STEM HAVING A HEAD OVERLYING THE UPPER END OF THE VALVE CASING, SAID HEAD HAVING AN ANNULAR INWARDLY DOWNWARD TAPERED UNDER SIDE IN OPPOSING RELATION TO THE UPPER END OF THE VALVE CASING, IN WHICH THE FACE OF THE UPPER END OF THE VALVE CASING IS FORMED WITH THREE OR MORE SECTIONS CONCAVELY CURVED ON THEIR UPPER SIDES, THE CONCAVE PORTIONS OF WHICH CORRESPOND TO THE INNER FACES OF SECTIONS OF A TRANSVERSE SLICE OF AS CONE.
Claim 2
Dependent Claim
115 words
A SPRINKLER FOR ATTACHMENT ON A PIPE END FORMING A TERMINUS OF A SPRINKLER SYSTEM, INCLUDING A CYLINDRICAL VALVE CASING ATTACHABLE ON THE PIPE EEND AND A VALVE STEM THREADED IN THE BORE OF THE VALVE CASING, SAID STEM HAVING A HEAD OVERLYING THE UPPER END OF THE VALVE CASING, SAID HEAD HAVING AN ANNULAR INWARDLY DOWNWARD TAPERED UNDER SIDE IN OPPOSING RELATION TO THE UPPER END OF THE VALVE CASING, IN WHICH THE FACE OF THE UPPER END OF THE VALVE CASING IS FORMED WITH THREE OR MORE SECTIONS CONCAVELY CURVED ON THEIR UPPER SIDES, THE CONCAVE PORTIONS OF WHICH CORRESPOND TO THE INNER FACES OF SECTIONS OF A TRANSVERSE SLICE OF AS CONE.
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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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |