US3118609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable sprinkler system
Assignee: HYDRO CENTURA ENGINEERING Inc
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Filing: 1962-06-03
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Granted: 1964-01-21
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Expires: 1982-06-03
Abstract
No abstract record available.
Inventors
- 👤 Clarence D Glover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:57
CPC Classifications
B; B05; B05B; B05B15/00; B05B15/70; B05B15/72; B05B15/74; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86638; Y10T137/86646; Y10T137/86654
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A DEVICE OF THE TYPE DESCRIBED WHICH COMPRISES A CYLINDER HAVING A FLUID INLET AND AN OUTLET, A PISTON SLIDABLY MOUNTED IN SAID CYLINDER, SAID PISTON BEING ATTACHED TO A FLUID DELIVERY TUBE EXTENDING THROUGH SAID OUTLET, SAID PISTON BEING PROVIDED WITH A PASSAGEWAY FOR FLUID FLOW THROUGH SAID PISTON, SAID PISTON BEING PROVIDED WITH MEANS FOR PREVENTING FLOW OF FLUID THROUGH THE SAID PASSAGEWAY UNTIL THE PISTON REACHES THE OUTLET END OF SAID CYLINDER UNDER THE INFLUENCE OF POSITIVE HYDRAULIC PRESSURE AT SAID CYLINDER INLET AND SAID PISTON BEING PROVIDED WITH MEANS FOR PREVENTING PASSAGE OF FLUID THROUGH THE PISTON
Claim 2
Independent Claim
101 words
A DEVICE OF THE TYPE DESCRIBED WHICH COMPRISES A CYLINDER HAVING A FLUID INLET AND AN OUTLET, A PISTON SLIDABLY MOUNTED IN SAID CYLINDER, SAID PISTON BEING ATTACHED TO A FLUID DELIVERY TUBE EXTENDING THROUGH SAID OUTLET, SAID PISTON BEING PROVIDED WITH A PASSAGEWAY FOR FLUID FLOW THROUGH SAID PISTON, SAID PISTON BEING PROVIDED WITH MEANS FOR PREVENTING FLOW OF FLUID THROUGH THE SAID PASSAGEWAY UNTIL THE PISTON REACHES THE OUTLET END OF SAID CYLINDER UNDER THE INFLUENCE OF POSITIVE HYDRAULIC PRESSURE AT SAID CYLINDER INLET AND SAID PISTON BEING PROVIDED WITH MEANS FOR PREVENTING PASSAGE OF FLUID THROUGH THE PISTON
References Cited (Backward Citations)
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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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |