US3340887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air release valve assembly
Assignee: Individual
•
Filing: 1965-12-06
•
Granted: 1967-09-12
•
Expires: 1985-12-06
Abstract
No abstract record available.
Inventors
- 👤 Melville F Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:05
CPC Classifications
F; F16; F16K; F16K24/00; F16K24/04; F16K24/042; F16K24/048; F16K24/044; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/3099; Y10T137/7287; Y10T137/7358; Y10T137/7365
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
AN AIR RELEASE VALVE ASSEMBLY FOR RELEASING AIR FROM A LIQUID SYSTEM COMPRISING, A RELEASE CHAMBER CONNECTED TO THE LIQUID SYSTEM, A FLOAT WITHIN SAID CHAMBER HAVING AN AVERAGE DENSITY LESS THAN THE DENSITY OF THE LIQUID, A PRIMARY VALVE REMOVABLY SECURED TO THE VALVE ASSEMBLY, SAID VALVE INCLUDING A HOUSING REMOVABLY CONNECTED TO SAID CHAMBER HAVING A FIRST VAVLE SEAT AND A FIRST MOVABLE VALVE MEMBER BIASED AGAINST SAID VALVE SEAT, A SAFETY VALVE COUPLED TO THE FLOAT FOR PREVENTING THE ESCAPE OF THE LIQUID WHEN THE PRIMARY VALVE FAILS OR IS REMOVED FROM THE ASSEMBLY, SAID SAFETY VALVE INCLUDING A SECOND VALVE SEAT SECURED TO THE VALVE ASSEMBLY BETWEEN THE
Claim 2
Dependent Claim
112 words
AN AIR RELEASE VALVE ASSEMBLY FOR RELEASING AIR FROM A LIQUID SYSTEM COMPRISING, A RELEASE CHAMBER CONNECTED TO THE LIQUID SYSTEM, A FLOAT WITHIN SAID CHAMBER HAVING AN AVERAGE DENSITY LESS THAN THE DENSITY OF THE LIQUID, A PRIMARY VALVE REMOVABLY SECURED TO THE VALVE ASSEMBLY, SAID VALVE INCLUDING A HOUSING REMOVABLY CONNECTED TO SAID CHAMBER HAVING A FIRST VAVLE SEAT AND A FIRST MOVABLE VALVE MEMBER BIASED AGAINST SAID VALVE SEAT, A SAFETY VALVE COUPLED TO THE FLOAT FOR PREVENTING THE ESCAPE OF THE LIQUID WHEN THE PRIMARY VALVE FAILS OR IS REMOVED FROM THE ASSEMBLY, SAID SAFETY VALVE INCLUDING A SECOND VALVE SEAT SECURED TO THE VALVE ASSEMBLY BETWEEN THE
References Cited (Backward Citations)
US939196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |