US3160391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve seats for high temperature and high vacuum environments
Assignee: Individual
•
Filing: 1962-01-24
•
Granted: 1964-12-08
•
Expires: 1982-01-24
Abstract
No abstract record available.
Inventors
- 👤 Gustav K Medicus
- 👤 Werner F Jehn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:58
CPC Classifications
F; F16; F16K; F16K51/00; F16K51/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A VALVE SEAT FOR USE IN A VALVE HAVING AN AXIALLY MOVING VALVE PLUG ACTUATED BY MEANS GENERATING HIGH THRUST AND COMPRISING: A METALLIC RING HAVING A HARDNESS AND MODULUS OF ELASTICITY ON THE ORDER OF TUNGSTEN CARBIDE AND A SEAT FACING DIFFUSION BONDED THERETO, SAID FACING BEING A METALLIC FOIL MATERIAL MORE DUCTILE THAN TUNGSTEN CARBIDE AND HAVING A HIGH WIDTH TO THICKNESS RATIO PROVIDING A DUCTILE FACING THE OUTER FACE AREAS OF WHICH RESIST THE FLOW OF THE INTERIOR AREA MADE PLASTIC BY THE EXTREME UNIT PRESSURE ON THE VALVE PLUG ENGAGING SAID VALVE SEAT, SAID FOIL MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF PLATINUM, GOLD, SILVER, COPPER, ALUMINUM AND IRON.
Claim 2
Dependent Claim
114 words
A VALVE SEAT FOR USE IN A VALVE HAVING AN AXIALLY MOVING VALVE PLUG ACTUATED BY MEANS GENERATING HIGH THRUST AND COMPRISING: A METALLIC RING HAVING A HARDNESS AND MODULUS OF ELASTICITY ON THE ORDER OF TUNGSTEN CARBIDE AND A SEAT FACING DIFFUSION BONDED THERETO, SAID FACING BEING A METALLIC FOIL MATERIAL MORE DUCTILE THAN TUNGSTEN CARBIDE AND HAVING A HIGH WIDTH TO THICKNESS RATIO PROVIDING A DUCTILE FACING THE OUTER FACE AREAS OF WHICH RESIST THE FLOW OF THE INTERIOR AREA MADE PLASTIC BY THE EXTREME UNIT PRESSURE ON THE VALVE PLUG ENGAGING SAID VALVE SEAT, SAID FOIL MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF PLATINUM, GOLD, SILVER, COPPER, ALUMINUM AND IRON.
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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) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |