Patent US1412514A successfully refreshed from Google Patents.
US3195552A
Expired / Lapsed
US
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Valving method which includes reforming the seat material
Assignee: Individual
•
Filing: 1961-08-21
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Granted: 1965-07-20
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Expires: 1981-08-21
Abstract
No abstract record available.
Inventors
- 👤 Ciifford L Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:24
CPC Classifications
F; F16; F16K; F16K51/00; F16K51/02; F16K49/00; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6065; Y10T137/6416; Y10T137/6606
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN A METHOD FOR PERFORMING OPENING AND CLOSING OF A PASSAGEWAY WITH A VALVE DISPOSED IN THE PASSAGEWAY HAVING A METAL VALVE MEMBER CLOSING AGAINST A RELATIVELY SOFT METAL SEAT HAVING A RELATIVELY LOW MELTING POINT, OPENING AND CLOSING THE VALVE MEMBER BY REPEATEDLY MOVING THE VALVE MEMBER INTO ENGAGEMENT WITH THE SEATING MATERIAL SO THAT THE VALVE MEMBER PROGRESSIVELY DEFORMS THE SEATING MATERIAL TO FORM A RECESS AND TO PROVIDE VACUUMTIGHT SEALS AS THE VALVE MEMBER IS REPEATEDLY CLOSED, AND REFLOWING THE SEATING MATERIAL BY HEATING ABOVE SAID MELTING POINT TO REMOVE THE RECESS FORMED IN THE SEATING MATERIAL.
Claim 2
Dependent Claim
100 words
IN A METHOD FOR PERFORMING OPENING AND CLOSING OF A PASSAGEWAY WITH A VALVE DISPOSED IN THE PASSAGEWAY HAVING A METAL VALVE MEMBER CLOSING AGAINST A RELATIVELY SOFT METAL SEAT HAVING A RELATIVELY LOW MELTING POINT, OPENING AND CLOSING THE VALVE MEMBER BY REPEATEDLY MOVING THE VALVE MEMBER INTO ENGAGEMENT WITH THE SEATING MATERIAL SO THAT THE VALVE MEMBER PROGRESSIVELY DEFORMS THE SEATING MATERIAL TO FORM A RECESS AND TO PROVIDE VACUUMTIGHT SEALS AS THE VALVE MEMBER IS REPEATEDLY CLOSED, AND REFLOWING THE SEATING MATERIAL BY HEATING ABOVE SAID MELTING POINT TO REMOVE THE RECESS FORMED IN THE SEATING MATERIAL.
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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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |