US3197945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sorption pump apparatus
Assignee: Varian Medical Systems Inc
•
Filing: 1961-02-27
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Granted: 1965-08-03
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Expires: 1981-02-27
Abstract
No abstract record available.
Inventors
- 👤 Zaphiropoulos Renn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:12
CPC Classifications
H; H01; H01J; H01J41/00; H01J41/12; H01J9/00; H01J9/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A VACUUM SORPTION PUMP APPARATUS COMPRISING: A HOLLOW PUMP CASING MADE OF HEAT CONDUCTIVE, IMPERVIOUS MATERIAL AND HAVING A CYLINDRICAL SIDE WALL AND TOP AND BOTTOM WALLS, SAID CASING ADAPTED TO THE REFRIGERATED BY A LIQUID COOLANT, SAID TOP WALL HAVING A GAS INLET APERATURE, SAID CASING BEING VACUUM TIGHT EXCEPT FOR SAID GAS INLET APERTURE; A PLURALITY OF ELONGATED, HEAT CONDUCTIVE USHAPED FIN MEMBERS DISPOSED IN A RADIAL ARRAY LENGTHWISE WITHIN SAID CASING, SAID FIN MEMBERS BEING VALLEY AND RIDGE PORTIONS, SAID RIDGE PORTIONS BEING PERMANENTLY SECURED TO SAID SIDE WALL IN GOOD THERMAL RELATIONSHIP, SAID FIN MEMBERS DIVIDING SAID CONTAINER INTO A PLURALITY OF GAS SORBENT MATERIAL RECEIVING COMPARTMENTS DISPOSED ON BOTH SIDE OF SAID FIN MEMBERS; AND, GAS SORBENT MATERIAL DISPOSED WITHIN AND SUBSTANTIALLY FILLING EACH OF SAID COMPARTMENTS AND CONTACTING SAID FIN MEMBERS AND CASING.
Claim 2
Dependent Claim
139 words
A VACUUM SORPTION PUMP APPARATUS COMPRISING: A HOLLOW PUMP CASING MADE OF HEAT CONDUCTIVE, IMPERVIOUS MATERIAL AND HAVING A CYLINDRICAL SIDE WALL AND TOP AND BOTTOM WALLS, SAID CASING ADAPTED TO THE REFRIGERATED BY A LIQUID COOLANT, SAID TOP WALL HAVING A GAS INLET APERATURE, SAID CASING BEING VACUUM TIGHT EXCEPT FOR SAID GAS INLET APERTURE; A PLURALITY OF ELONGATED, HEAT CONDUCTIVE USHAPED FIN MEMBERS DISPOSED IN A RADIAL ARRAY LENGTHWISE WITHIN SAID CASING, SAID FIN MEMBERS BEING VALLEY AND RIDGE PORTIONS, SAID RIDGE PORTIONS BEING PERMANENTLY SECURED TO SAID SIDE WALL IN GOOD THERMAL RELATIONSHIP, SAID FIN MEMBERS DIVIDING SAID CONTAINER INTO A PLURALITY OF GAS SORBENT MATERIAL RECEIVING COMPARTMENTS DISPOSED ON BOTH SIDE OF SAID FIN MEMBERS; AND, GAS SORBENT MATERIAL DISPOSED WITHIN AND SUBSTANTIALLY FILLING EACH OF SAID COMPARTMENTS AND CONTACTING SAID FIN MEMBERS AND CASING.
References Cited (Backward Citations)
US1729083A
Cited
US2019356A
Cited
US2067678A
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NL45782C
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US2253907A
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FR994472A
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US2831549A
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US2925878A
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US3116764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |