US3264803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sorption vacuum pump
Assignee: General Electric Co
•
Filing: 1963-01-21
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Granted: 1966-08-09
•
Expires: 1983-01-21
Abstract
No abstract record available.
Inventors
- 👤 Philip L Read
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:26
CPC Classifications
F; F04; F04B; F04B37/00; F04B37/06; F04B37/08; H; H01; H01J; H01J9/00; H01J9/38; H01J9/385
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A SORPTION PUMPING DEVICE COMPRISING A PAIR OF SUBSTANTIALLY CONCENTRIC, VERTICALLY COEXTENSIVE, ANNULAR CONTAINERS, SAID CONTAINERS BEING SPACED APART, THE INNER WALL OF THE INNER CONTAINER COMPRISING A GAS PERVIOUS MEMBER, THE OUTER WALL OF THE INNER CONTAINER AND THE INNER WALL OF THE OUTER CONTAINER BEING JOINED TOGETHER AT THEIR LOWER ENDS TO FORM A COOLANT RECEIVING REGION BETWEEN SAID CONTAINERS, AN ELECTRIC HEATING ELEMENT POSITIONED WITHIN SAID COOLANT REGION, A GAS PASSAGEWAY CONNECTING THE LOWER ENDS OF SAID CONTAINERS, SORBENT MATERIAL POSITIONED BETWEEN THE WALLS OF EACH OF SAID CONTAINERS AND IN SAID PASSAGEWAY, GAS INLET MEANS CONNECTED TO THE UPPER END OF SAID INNER CONTAINER, GAS OUTLET MEANS CONNECTED TO THE UPPER END OF SAID OUTER CONTAINER, WHEREBY GAS FLOWING BETWEEN SAID MEMBER AND THE SORBENT MATERIAL IN SAID TWO CONTAINERS AND SAID PASSAGEWAY IN SERIES, AND VALVE MEANS CONNECTED TO SAID OUTLET MEANS.
Claim 2
Dependent Claim
147 words
A SORPTION PUMPING DEVICE COMPRISING A PAIR OF SUBSTANTIALLY CONCENTRIC, VERTICALLY COEXTENSIVE, ANNULAR CONTAINERS, SAID CONTAINERS BEING SPACED APART, THE INNER WALL OF THE INNER CONTAINER COMPRISING A GAS PERVIOUS MEMBER, THE OUTER WALL OF THE INNER CONTAINER AND THE INNER WALL OF THE OUTER CONTAINER BEING JOINED TOGETHER AT THEIR LOWER ENDS TO FORM A COOLANT RECEIVING REGION BETWEEN SAID CONTAINERS, AN ELECTRIC HEATING ELEMENT POSITIONED WITHIN SAID COOLANT REGION, A GAS PASSAGEWAY CONNECTING THE LOWER ENDS OF SAID CONTAINERS, SORBENT MATERIAL POSITIONED BETWEEN THE WALLS OF EACH OF SAID CONTAINERS AND IN SAID PASSAGEWAY, GAS INLET MEANS CONNECTED TO THE UPPER END OF SAID INNER CONTAINER, GAS OUTLET MEANS CONNECTED TO THE UPPER END OF SAID OUTER CONTAINER, WHEREBY GAS FLOWING BETWEEN SAID MEMBER AND THE SORBENT MATERIAL IN SAID TWO CONTAINERS AND SAID PASSAGEWAY IN SERIES, AND VALVE MEANS CONNECTED TO SAID OUTLET MEANS.
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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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |