US3552125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion beam deflector
Assignee: National Aeronautics and Space Administration
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Filing: 1969-06-06
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Granted: 1971-01-05
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Expires: 1989-06-06
Abstract
Abstract ELECTRICALLY ORIENTING THE THRUST VECTOR OF AN ELECTROSTATIC ION THRUSTOR HAVING A GLASS-COATED GRID SYSTEM. HIGHLY NEGATIVE POTENTIALS ARE APPLIED TO CONDUCTORS THAT ARE MOUNTED IN PAIRS AND ARRANGED IN ARRAYS TO FORM THE GRID. THESE ELECTRICAL POTENTIALS ARE INDEPENDENTLY VARIED IN EACH ARRAY TO OBTAIN THE DESIRED AMOUNT OF ION BEAM VECTORING.
Inventors
- 👤 Bruce A Banks
- 👤 Harold R Kaufman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:03
CPC Classifications
F; F03; F03H; F03H1/00; F03H1/0037; F03H1/0043; B; B64; B64G; B64G1/00; B64G1/22; B64G1/40; B64G1/411; B64G1/413
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |