US3214245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactive metal diffusion pump
Assignee: General Electric Co
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Filing: 1962-10-29
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Granted: 1965-10-26
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Expires: 1982-10-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Philip H Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:18
CPC Classifications
H; H01; H01J; H01J41/00; H01J41/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A REACTIVE METAL DIFFUSION PUMP COMPRISING: (A) A HOUSING ADAPTED TO FORM A VACUUM TIGHT SEAL WXXXX VACUUM CHAMBER; (B) A PERMEABLE, REACTIVE, GETTER-SIEVE WALL, VACUUM SEALED OVER AN OPENING BETWEEN SAID HOUSING AND SAID VACUUM CHAMBER, SAID GETTER-SIEVE WALL BEING COMPRISED OF A GETTER MATERIAL WHICH GETTERS SOME GASES IN SAID CHAMBER AND BEING FABRICATED TO PROVIDE DIFFUSION OF OTHER GASES; (C) MEANS TO CONTINOUSLY REMOVE SAID OTHER GASES FROM SAID HOUSING; AND (D) SAID MEANS TO CONTINOUSLY REMOVE SAID OTHER GASES, AND SAID PERMEABLE GETTER-SEIVE WALL BEING MOUNTED IN SAID HOUSING IN SUCH A MANNER THAT ALL OF SAID OTHER GASES MUST PASS THROUGH SAID GETTER WALL.
Claim 2
Dependent Claim
109 words
A REACTIVE METAL DIFFUSION PUMP COMPRISING: (A) A HOUSING ADAPTED TO FORM A VACUUM TIGHT SEAL WXXXX VACUUM CHAMBER; (B) A PERMEABLE, REACTIVE, GETTER-SIEVE WALL, VACUUM SEALED OVER AN OPENING BETWEEN SAID HOUSING AND SAID VACUUM CHAMBER, SAID GETTER-SIEVE WALL BEING COMPRISED OF A GETTER MATERIAL WHICH GETTERS SOME GASES IN SAID CHAMBER AND BEING FABRICATED TO PROVIDE DIFFUSION OF OTHER GASES; (C) MEANS TO CONTINOUSLY REMOVE SAID OTHER GASES FROM SAID HOUSING; AND (D) SAID MEANS TO CONTINOUSLY REMOVE SAID OTHER GASES, AND SAID PERMEABLE GETTER-SEIVE WALL BEING MOUNTED IN SAID HOUSING IN SUCH A MANNER THAT ALL OF SAID OTHER GASES MUST PASS THROUGH SAID GETTER WALL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |