Patent US3211170A successfully refreshed from Google Patents.
US3211170A
Expired / Lapsed
US
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Float valve with air cut-off
Assignee: Individual
•
Filing: 1962-12-12
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Granted: 1965-10-12
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Expires: 1982-12-12
Abstract
No abstract record available.
Inventors
- 👤 Gerald E White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:50
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7303; Y10T137/7358; Y10T137/7423; Y10T137/7426; Y10T137/7433
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
134 words
A VALVE MECHANISM, COMPRISING: A BODY PORTION HAVING AN INLET COMMUNICATING WITH A CHAMBER, AND A HAVING A NORMALLY VERTICAL PASSAGE IN THE TOP OF SAID CHAMBER, SAID BODY PORTION HAVING AN EXTENSION SURROUNDING SAID PASSAGE AND IN EXTERNAL SHOULDER SURROUNDING SAID EXTENSION, AND ALSO HAVING PORTS DISPOSED ABOVE SAID EXTERIOR SHOULDER COMMUNICATING WITH SAID PASSAGE, A ROD SLIDABLY MOUNTED IN SAID EXTENSION, AND HAVING A VALVE MEMBER DISPOSED IN SAID CHAMBER AND ENGAGEABLE WITH SAID BODY PORTION TO BLOCK THE OPENING IN SAID PASSAGE, SAID EXTENSION MAINTAINING SAID ROD IN AXIAL ALIGNMENT THEREWITH, AND A FLOAT SECURED TO SAID ROD ABOVE SAID BODY PORTION, SAID FLOAT HAVING A RECESS IN THE BOTTOM THEREOF FOR RECEIVING SAID EXTENSION, A PORTION OF SAID FLOAT BEING ENGAGEABLE WITH SAID SHOULDER TO BLOCK FLOW THROUGH SAID PORTS.
References Cited (Backward Citations)
US3095005A
Cited
US3079125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |