US3251379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrant coupler
Assignee: Individual
•
Filing: 1963-01-16
•
Granted: 1966-05-17
•
Expires: 1983-01-16
Abstract
No abstract record available.
Inventors
- 👤 Marcia W Lebow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:49
CPC Classifications
E; E03; E03B; E03B9/00; E03B9/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/86936; Y10T137/87917; Y10T137/87925; Y10T137/87933; Y10T137/87973
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
133 words
A COUPLING FIRST AND SECOND COUPLING MEMBERS SECURED TO EACH OTHER, A FIRST VALVE FOR CONTROLLING FLOW OF FLUID THROUGH SAID FIRST MEMBER AND A SECOND VALVE FOR CONTROLLING FLOW OF FLUID THROUGH SAID SECOND MEMBER, AND FIRST AND SECOND RELIEF MECHANISMS CARRIED BY SAID RESPECTIVE FIRST AND SECOND VALVES, AND MEANS FOR MOVING SAID VALVE RELATIVE TO EACH OTHER BETWEEN A FIRST POSITION AT WHICH SAID FIRST RELIEF MECHANISM IS OPENED BY SAID SECOND VALVE TO CONDUCT FLUID UNDER PRESSURE FROM BEHIND THE FIRST VALVE TO A REGION BETWEEN THE VALVES WHILE PREVENTING THE CONDUCTION OF FLUID FROM THE REGION BETWEEN THE VALVES TO A REGION BEHIND THE SECOND VALVE, AND A SECOND POSITION TO CONDUCT FLUID UNDER PRESSURE FROM THE REGION BETWEEN THE VALVES TO A REGION BEHIND THE SECOND VALVE.
References Cited (Backward Citations)
US3125135A
Cited
US2401674A
Cited
US2543590A
Cited
US2729471A
Cited
US3035595A
Cited
US3155370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |