US3106935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic vacuum breaking sill cock
Assignee: Individual
•
Filing: 1961-04-20
•
Granted: 1963-10-15
•
Expires: 1981-04-20
Abstract
No abstract record available.
Inventors
- 👤 Gatzke Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:50
CPC Classifications
F; F16; F16K; F16K24/00; F16K24/02; E; E03; E03B; E03B7/00; E03B7/09; E03B7/10; E03B7/12; E03B9/00; E03B9/02; E03B9/025; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/3294; Y10T137/3331; Y10T137/6851; Y10T137/6966; Y10T137/6969; Y10T137/698
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A SILL COCK COMPRISING: A EXTERNAL HOUSING; AN INTERNAL SUPPLY SHUTOFF VALVE; A WALL TUBE CONNECTING SAID HOUSING TO SAID VALVE; A VALVE STEM EXTENDING FROM SAID VALVE OUTWARDLY THROUGH SAID HOUSING; A BODY MEMBER THREADED INTO THE OUTER EXTREMITY OF SAID HOUSING ABOUT SAID VALVE STEM; AN INTERNAL ANNULAR SEAT FORMED ON SAID BODY MEMBER CONCENTRIC OF SAID VALVE STEM; AND A RELATIVELY FLAT, THIN FLEXIBLE, CIRCULAR FLAP VALVE DISC MOUNTED ON SAID VALVE STEM AND MEANS MAINTAINING SAID VALVE DISC IN SUCH RELATION TO SAID SEAT THAT IT MAY FLEX INTO CONTACT WITH THE LATTER AND CLOSE SAID PORTS WHEN THE PRESSURE IN SAID HOUSING EXCEEDS ATMOSPHERIC PRESSURE AND SO THAT IT MAY FLEX AWAY FROM SAID SEAT WHEN THE PRESSURE IN SAID HOUSING IS SUB-ATMOSPHERIC.
Claim 2
Dependent Claim
128 words
A SILL COCK COMPRISING: A EXTERNAL HOUSING; AN INTERNAL SUPPLY SHUTOFF VALVE; A WALL TUBE CONNECTING SAID HOUSING TO SAID VALVE; A VALVE STEM EXTENDING FROM SAID VALVE OUTWARDLY THROUGH SAID HOUSING; A BODY MEMBER THREADED INTO THE OUTER EXTREMITY OF SAID HOUSING ABOUT SAID VALVE STEM; AN INTERNAL ANNULAR SEAT FORMED ON SAID BODY MEMBER CONCENTRIC OF SAID VALVE STEM; AND A RELATIVELY FLAT, THIN FLEXIBLE, CIRCULAR FLAP VALVE DISC MOUNTED ON SAID VALVE STEM AND MEANS MAINTAINING SAID VALVE DISC IN SUCH RELATION TO SAID SEAT THAT IT MAY FLEX INTO CONTACT WITH THE LATTER AND CLOSE SAID PORTS WHEN THE PRESSURE IN SAID HOUSING EXCEEDS ATMOSPHERIC PRESSURE AND SO THAT IT MAY FLEX AWAY FROM SAID SEAT WHEN THE PRESSURE IN SAID HOUSING IS SUB-ATMOSPHERIC.
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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) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |