US3263025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demountable metal-to-ceramic seal
Assignee: Varian Medical Systems Inc
•
Filing: 1963-07-30
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Granted: 1966-07-26
•
Expires: 1983-07-30
Abstract
No abstract record available.
Inventors
- 👤 William R Wheeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:56
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/026; H; H01; H01B; H01B17/00; H01B17/26; H01B17/30; H01B17/303; H01B17/308; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/124; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/40; C04B2237/405; C04B2237/406; C04B2237/50; C04B2237/52; C04B2237/59; C04B2237/592; C04B2237/62; C04B2237/76; Y; Y10; Y10S; Y10S277/00; Y10S277/913; Y10S277/921
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A DEMOUNTABLE METAL-T-CERAMIC SEAL TO BE USED BETWEEN A HIGH AND LOW PRESSURE REGION COMPRISING: A METAL MEMBER AND A CERAMIC MEMBER SPACED FROM EACH OTHER AND ADAPTED FOR RELATIVE MOVEMENT ALONG A LONGITUDINAL AXIS TOWARDS EACH OTHER; SAID METAL MEMBER HAVING A SHOULDER PORTION WITH AN INNER WALL SUBSTANTIALLY PARALLEL TO THE LONGITUDINAL AXIS; SAID METAL MEMBER BEING PROVIDED WITH A RIDGE PORTION HAVING A SLANTED SIDE ANGLED TOWARD SAID INNER WALL TO DEFINE AN ACUTE ANGLE THEREBETWEEN; SAID CERAMIC MEMBER BEING PROVIDED WITH A SURFACE FACING IN THE DIRECTION OF RELATIVE MOVEMENT OF SAID CERAMIC MEMBER TOWARD SAID METAL MEMBER; SAID SURFACE HAVING A BEVELLED PORTION FORMING A SLANTED SIDE ANGLED TOWARD SAID INNER WALL TO DEFINE AN ACUATE ANGLE THEREWITH WHEN SAID METAL MEMBER AND SAID CERAMIC MEMBER ARE DRAWN TOGETHER IN THE DIRECTION OF RELATIVE MOVEMENT; SAID SLANTED SIDES BEING OPPOSITE EACH OTHER AND FORMING A CAVITY WITH SAID INNER WALL; AND A SOFT METAL SEALING GASKET DISPOSED WITHIN SAID CAVITY IN CONTACT WITH SAID SLANTED SIDES AND SAID INNER WALL.
Claim 2
Dependent Claim
175 words
A DEMOUNTABLE METAL-T-CERAMIC SEAL TO BE USED BETWEEN A HIGH AND LOW PRESSURE REGION COMPRISING: A METAL MEMBER AND A CERAMIC MEMBER SPACED FROM EACH OTHER AND ADAPTED FOR RELATIVE MOVEMENT ALONG A LONGITUDINAL AXIS TOWARDS EACH OTHER; SAID METAL MEMBER HAVING A SHOULDER PORTION WITH AN INNER WALL SUBSTANTIALLY PARALLEL TO THE LONGITUDINAL AXIS; SAID METAL MEMBER BEING PROVIDED WITH A RIDGE PORTION HAVING A SLANTED SIDE ANGLED TOWARD SAID INNER WALL TO DEFINE AN ACUTE ANGLE THEREBETWEEN; SAID CERAMIC MEMBER BEING PROVIDED WITH A SURFACE FACING IN THE DIRECTION OF RELATIVE MOVEMENT OF SAID CERAMIC MEMBER TOWARD SAID METAL MEMBER; SAID SURFACE HAVING A BEVELLED PORTION FORMING A SLANTED SIDE ANGLED TOWARD SAID INNER WALL TO DEFINE AN ACUATE ANGLE THEREWITH WHEN SAID METAL MEMBER AND SAID CERAMIC MEMBER ARE DRAWN TOGETHER IN THE DIRECTION OF RELATIVE MOVEMENT; SAID SLANTED SIDES BEING OPPOSITE EACH OTHER AND FORMING A CAVITY WITH SAID INNER WALL; AND A SOFT METAL SEALING GASKET DISPOSED WITHIN SAID CAVITY IN CONTACT WITH SAID SLANTED SIDES AND SAID INNER WALL.
References Cited (Backward Citations)
DE502418C
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US1147818A
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US1215074A
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CH130503A
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US1855494A
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US2250355A
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US2439173A
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US2616946A
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US2906908A
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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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |