Patent US3159181A successfully refreshed from Google Patents.
US3159181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing valve for spherical valve element and with instant repeat setting
Assignee: Individual
•
Filing: 1961-08-21
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Granted: 1964-12-01
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Expires: 1981-08-21
Abstract
No abstract record available.
Inventors
- 👤 Harke Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:22
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/08; F16K11/087; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86815; Y10T137/86823; Y10T137/86847
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A MIXING VALVE INCLUDING A HOUSING ENCLOSING A VALVE CHAMBER, SEPARATE PASSAGES FOR HOT AND COLD WATER OPENING THROUGH THE HOUSING AND INTO THE VALVE CHAMBER, A CONDUIT LEADING FROM THE VALVE CHAMBER AND FROM THE HOUSING AND SERVING AS AN OUTLET FOR LIQUID FROM SAID CHAMBER, A VALVE ELEMENT SUBSTANTIALLY SMALLER THAN THE CHAMBER AND MOVABLE IN THE CHAMBER TOWARD AND FROM THE PASSAGES THAT OPEN THROUGH THE HOUSING, THE VALVE ELEMENT HAVING A SPHERICAL ZONE SURFACE, A VALVE SEAT AT THE CHAMBER END OF EACH PASSAGE AND EXTENDING INTO THE CHAMBER BEYOND THE ADJACENT INSIDE SURFACE OF THE CHAMBER FOR CONTACT WITH THE SPHERICAL SURFACE TO THE VALVE ELEMENT TO SEAL THE PASSAGE, A STEM OPERABLY CONNECTED WITH THE VALVE ELEMENT, EACH VALVE SEAT BEING ELONGATED IN A DIRECTION EXTENDING GENERALLY PARALLEL TO THE STEM AND HAVING AN ARC OF CURVATURE IN THE DIRECTION OF ELONGATION, THE VALVE SEATS BEING SPACED FROM ONE ANOTHER BY A DIS-
Claim 2
Dependent Claim
159 words
A MIXING VALVE INCLUDING A HOUSING ENCLOSING A VALVE CHAMBER, SEPARATE PASSAGES FOR HOT AND COLD WATER OPENING THROUGH THE HOUSING AND INTO THE VALVE CHAMBER, A CONDUIT LEADING FROM THE VALVE CHAMBER AND FROM THE HOUSING AND SERVING AS AN OUTLET FOR LIQUID FROM SAID CHAMBER, A VALVE ELEMENT SUBSTANTIALLY SMALLER THAN THE CHAMBER AND MOVABLE IN THE CHAMBER TOWARD AND FROM THE PASSAGES THAT OPEN THROUGH THE HOUSING, THE VALVE ELEMENT HAVING A SPHERICAL ZONE SURFACE, A VALVE SEAT AT THE CHAMBER END OF EACH PASSAGE AND EXTENDING INTO THE CHAMBER BEYOND THE ADJACENT INSIDE SURFACE OF THE CHAMBER FOR CONTACT WITH THE SPHERICAL SURFACE TO THE VALVE ELEMENT TO SEAL THE PASSAGE, A STEM OPERABLY CONNECTED WITH THE VALVE ELEMENT, EACH VALVE SEAT BEING ELONGATED IN A DIRECTION EXTENDING GENERALLY PARALLEL TO THE STEM AND HAVING AN ARC OF CURVATURE IN THE DIRECTION OF ELONGATION, THE VALVE SEATS BEING SPACED FROM ONE ANOTHER BY A DIS-
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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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |