US3274778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuator with high fluid pressure
Assignee: Individual
•
Filing: 1965-03-10
•
Granted: 1966-09-27
•
Expires: 1985-03-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Tyrner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:03
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/02; Y; Y10; Y10S; Y10S60/00; Y10S60/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN ACTUATOR INCLUDING A BODY ENVELOPING AN INTERNAL CHAMBER WHICH CORRESPONDS GENERALLY TO THE OUTER SURFACE OF THE BODY IN TWO DIMENSIONS OF THAT SURFACE AND WHICH INCLUDES WALLS CLOSELY SPACED IN THE DIMENSION PERPENDICULAR TO SAID OUTER SURFACE, SAID CHAMBER BEING FILLED WITH AN ELECTRICALLY-CONDUCTIVE LIQUID, BARRIER MEANS IN THE CHAMBER EXTENDING IN THE NARROW DIMENSION AND DIVIDING THE CHAMBER INTO A PLURALITY OF COMMUNICATING SUBCHAMBERS, AN ELECTRIC CIRCUIT FOR ESTABLISHING A MAGNETIC FLUX TRAVERSING THE CHAMBER IN THE DIRECTION OF THE NARROW SPACING AND FOR ESTABLISHING A CURRENT FLOW THROUGH THE LIQUID IN A DIRECTION TRANSVERSE OF THE MAGNETIC FLUX, AND OTHER MEANS INCLUDING A SECOND ELECTRIC CIRCUIT
Claim 2
Dependent Claim
110 words
AN ACTUATOR INCLUDING A BODY ENVELOPING AN INTERNAL CHAMBER WHICH CORRESPONDS GENERALLY TO THE OUTER SURFACE OF THE BODY IN TWO DIMENSIONS OF THAT SURFACE AND WHICH INCLUDES WALLS CLOSELY SPACED IN THE DIMENSION PERPENDICULAR TO SAID OUTER SURFACE, SAID CHAMBER BEING FILLED WITH AN ELECTRICALLY-CONDUCTIVE LIQUID, BARRIER MEANS IN THE CHAMBER EXTENDING IN THE NARROW DIMENSION AND DIVIDING THE CHAMBER INTO A PLURALITY OF COMMUNICATING SUBCHAMBERS, AN ELECTRIC CIRCUIT FOR ESTABLISHING A MAGNETIC FLUX TRAVERSING THE CHAMBER IN THE DIRECTION OF THE NARROW SPACING AND FOR ESTABLISHING A CURRENT FLOW THROUGH THE LIQUID IN A DIRECTION TRANSVERSE OF THE MAGNETIC FLUX, AND OTHER MEANS INCLUDING A SECOND ELECTRIC CIRCUIT
References Cited (Backward Citations)
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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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |