US3374037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic bearing
Assignee: General Electric Co
•
Filing: 1964-12-21
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Granted: 1968-03-19
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Sanford M Weinberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:37
CPC Classifications
F; F16; F16C; F16C39/00; F16C39/06; F16C39/063; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/103; F16C33/1035; F16F; F16F6/00; F16F9/00; F16F9/32; F16F9/53; F16F9/535
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A POSITION-SEEKING DEVICE COMPRISING: A SOURCE OF MAGNETOMOTIVE FORCE HAVING MAGNETIC POLES; A MAGNETIC FLUID WHOSE VISCOSITY AND FLUIDITY ARE SUBSTANTIALLY INDEPENDENT OF ANY MAGNETIC FIELD APPLIED TO IT SURROUNDING THE SAID POLES; CONTAINER MEANS BOUNDING THE SAME FLUID AND GENERALLY CONFORMING TO THE SHAPE OF THE SAID SOURCE OF MAGNETOMOTIVE FORCE.
Claim 2
Dependent Claim
52 words
A POSITION-SEEKING DEVICE COMPRISING: A SOURCE OF MAGNETOMOTIVE FORCE HAVING MAGNETIC POLES; A MAGNETIC FLUID WHOSE VISCOSITY AND FLUIDITY ARE SUBSTANTIALLY INDEPENDENT OF ANY MAGNETIC FIELD APPLIED TO IT SURROUNDING THE SAID POLES; CONTAINER MEANS BOUNDING THE SAME FLUID AND GENERALLY CONFORMING TO THE SHAPE OF THE SAID SOURCE OF MAGNETOMOTIVE FORCE.
References Cited (Backward Citations)
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Cited
US2667237A
Cited
US2806533A
Cited
US2903109A
Cited
US2983349A
Cited
US2896931A
Cited
US3250341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |