US3309028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprinkler heads having valves actuated by separate pressure lines
Assignee: Individual
•
Filing: 1964-07-31
•
Granted: 1967-03-14
•
Expires: 1984-07-31
Abstract
No abstract record available.
Inventors
- 👤 Clifford V Zieg
- 👤 Robert G Fike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:17
CPC Classifications
A; A62; A62C; A62C37/00; A62C37/08; A62C37/10; B; B05; B05B; B05B1/00; B05B1/26; B05B1/262; B05B1/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A SPRINKLER HEAD, COMPRISING: BODY MEANS HAVING A FLUID INLET AND A VALVE SEAT ALIGNED WITH THE SAID INLET, SAID BODY MEANS HAVING AN EXIT FOR SAID FLUID AND ALSO HAVING A CONTROL CHAMBER, SAID CONTROL CHAMBER HAVING A PASSAGE FOR CONNECTION TO A SOURCE OF PRESSURIZED OPERATING FLUID; FLOW-CONTROLLING PISTON MEANS PARTIALLY RECEIVED WITHIN SAID CONTROL CHAMBER AND BEING MOVABLE IN RESPONSE TO OPERATING FLUID PRESSURE WITHIN SAID CONTROL CHAMBER FROM A SPRINKLER "OPEN" POSITION SPACED FROM SAID VALVE SEAT, TO A SPRINKLER "CLOSED" POSITION IN WHICH A PORTION OF SAID PISTON MEANS IS IN SEALING ENGAGEMENT WITH SAID VALVE SEAT; AND A DEFLECTOR POSITIONED
Claim 2
Dependent Claim
106 words
A SPRINKLER HEAD, COMPRISING: BODY MEANS HAVING A FLUID INLET AND A VALVE SEAT ALIGNED WITH THE SAID INLET, SAID BODY MEANS HAVING AN EXIT FOR SAID FLUID AND ALSO HAVING A CONTROL CHAMBER, SAID CONTROL CHAMBER HAVING A PASSAGE FOR CONNECTION TO A SOURCE OF PRESSURIZED OPERATING FLUID; FLOW-CONTROLLING PISTON MEANS PARTIALLY RECEIVED WITHIN SAID CONTROL CHAMBER AND BEING MOVABLE IN RESPONSE TO OPERATING FLUID PRESSURE WITHIN SAID CONTROL CHAMBER FROM A SPRINKLER "OPEN" POSITION SPACED FROM SAID VALVE SEAT, TO A SPRINKLER "CLOSED" POSITION IN WHICH A PORTION OF SAID PISTON MEANS IS IN SEALING ENGAGEMENT WITH SAID VALVE SEAT; AND A DEFLECTOR POSITIONED
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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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |