US3080104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ionic pump
Assignee: General Electric Co
•
Filing: 1958-09-25
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Granted: 1963-03-05
•
Expires: 1978-09-25
Abstract
No abstract record available.
Inventors
- 👤 Thomas A Vanderslice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:05
CPC Classifications
H; H01; H01J; H01J41/00; H01J41/12; H01J41/14; H01J41/16; H01J41/18; H01J41/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
AN IONIC PUMP DEVICE ADAPTED TO REMOVE GASES FROM AN ENCLOSURE BY THE MECHANISM OF ENTRAPMENT OF POSITIVE IONS BY SPUTTERED METALLIC PARTICLES AND COMPRISING: AN APERTURED CYLINDRICAL ANODE MEMBER; A PAIR OF APERTURED CYLINDRICAL COLLECTOR ELECTRODE MEMBERS DISPOSED ON OPPOSITE SIDES OF SAID ANODE MEMBER AND COAXIAL THEREWITH, A PAIR OF CATHODE MEMBERS EACH HAVING A DISCSHAPED PERIPHERAL PORTION DISPOSED ON OPPOSITE SIDES OF SAID COLLECTOR ELECTRODE MEMBERS AND FORMING END-WALL MEMBERS FOR SAID DEVICE; A PLURALITY OF ANNULAR INSULATING CERAMIC MEMBERS INTERPOSED BETWEEN SAID CATHODE MEMBERS AND SAID COLLECTOR ELECTRODE MEMBERS AND BETWEEN SAID COLLECTOR ELECTRODE MEMBERS AND SAID ANODE MEMBER RESPECTIVELY AND HERMETICALLY SEALED THERETO TO FORM AN HERMETICALLY SEALED ENVELOPE; MEANS FOR SUPPLYING OPERATING POTENTIALS TO EACH OF SAID CATHODE, ANODE AND COLLECTOR ELECTRODE MEMBERS TO CAUSE AN OSCILLATING ELECTRON DISCHARGE TO EXIST BETWEEN SAID CATHODES AND THE SUBSEQUENT CREATIONS OF POSITIVE IONS THEREBY BY COLLISION WITH GAS MOLECULES, WHICH IONS ARE ATTRACTED TO SAID COLLECTOR ELECTRODE MEMBERS AND COVERED BY METALLIC PARTICLES SPUTTERED FROM SAID CATHODE MEMBERS; AND MEANS CONNECTED TO SAID ENVELOPE FOR CONNECTING SAID PUMP DEVICE TO A CAVITY TO BE EVACUATED THEREBY.
Claim 2
Dependent Claim
190 words
AN IONIC PUMP DEVICE ADAPTED TO REMOVE GASES FROM AN ENCLOSURE BY THE MECHANISM OF ENTRAPMENT OF POSITIVE IONS BY SPUTTERED METALLIC PARTICLES AND COMPRISING: AN APERTURED CYLINDRICAL ANODE MEMBER; A PAIR OF APERTURED CYLINDRICAL COLLECTOR ELECTRODE MEMBERS DISPOSED ON OPPOSITE SIDES OF SAID ANODE MEMBER AND COAXIAL THEREWITH, A PAIR OF CATHODE MEMBERS EACH HAVING A DISCSHAPED PERIPHERAL PORTION DISPOSED ON OPPOSITE SIDES OF SAID COLLECTOR ELECTRODE MEMBERS AND FORMING END-WALL MEMBERS FOR SAID DEVICE; A PLURALITY OF ANNULAR INSULATING CERAMIC MEMBERS INTERPOSED BETWEEN SAID CATHODE MEMBERS AND SAID COLLECTOR ELECTRODE MEMBERS AND BETWEEN SAID COLLECTOR ELECTRODE MEMBERS AND SAID ANODE MEMBER RESPECTIVELY AND HERMETICALLY SEALED THERETO TO FORM AN HERMETICALLY SEALED ENVELOPE; MEANS FOR SUPPLYING OPERATING POTENTIALS TO EACH OF SAID CATHODE, ANODE AND COLLECTOR ELECTRODE MEMBERS TO CAUSE AN OSCILLATING ELECTRON DISCHARGE TO EXIST BETWEEN SAID CATHODES AND THE SUBSEQUENT CREATIONS OF POSITIVE IONS THEREBY BY COLLISION WITH GAS MOLECULES, WHICH IONS ARE ATTRACTED TO SAID COLLECTOR ELECTRODE MEMBERS AND COVERED BY METALLIC PARTICLES SPUTTERED FROM SAID CATHODE MEMBERS; AND MEANS CONNECTED TO SAID ENVELOPE FOR CONNECTING SAID PUMP DEVICE TO A CAVITY TO BE EVACUATED THEREBY.
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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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |