Patent US3154707A successfully refreshed from Google Patents.
US3154707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-stiction device for rotating electrical components
Assignee: Muirhead and Co Ltd
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Filing: 1963-05-16
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Granted: 1964-10-27
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Expires: 1983-05-16
Abstract
No abstract record available.
Inventors
- 👤 Bright Frederick James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:46
CPC Classifications
H; H02; H02K; H02K24/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A ROTATING ALTERNATING CURRENT ELECTRICAL COMPONENT COMPRISING A STATOR ELEMENT CARRYING AT LEAST ON ELECTRICAL WINDING CONTAINED IN SLOTS THEREIN, A ROTOR OF HIGH PERMEABILITY MAGNETIC MATERIAL, AT LEAST ONE POLARIZING WINDING FOR THE ROTOR AND A THIN FLEXIBLE MEMBER FOR THE ROTOR MOUNTED ON THE ROTOR IN A POSITION IN WHICH IT IS INFLUENCED BY THE MAGNETIC FIELD PASSING THERETHROUGH SO AS TO VIBRATE AND THEREBY IMPART AXIAL VIBRATIONS TO THE ROTOR.
Claim 2
Dependent Claim
73 words
A ROTATING ALTERNATING CURRENT ELECTRICAL COMPONENT COMPRISING A STATOR ELEMENT CARRYING AT LEAST ON ELECTRICAL WINDING CONTAINED IN SLOTS THEREIN, A ROTOR OF HIGH PERMEABILITY MAGNETIC MATERIAL, AT LEAST ONE POLARIZING WINDING FOR THE ROTOR AND A THIN FLEXIBLE MEMBER FOR THE ROTOR MOUNTED ON THE ROTOR IN A POSITION IN WHICH IT IS INFLUENCED BY THE MAGNETIC FIELD PASSING THERETHROUGH SO AS TO VIBRATE AND THEREBY IMPART AXIAL VIBRATIONS TO THE ROTOR.
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) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |