Patent US3195703A successfully refreshed from Google Patents.
US3195703A
Expired / Lapsed
US
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Very fast acting electromagnetic friction clutch-brake drive
Assignee: Potter Instrument Co Inc
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Filing: 1963-05-17
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Granted: 1965-07-20
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Expires: 1983-05-17
Abstract
No abstract record available.
Inventors
- 👤 George E Comstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:47
CPC Classifications
F; F16; F16D; F16D67/00; F16D67/02; F16D67/06; D; D01; D01H; D01H7/00; D01H7/02; D01H7/04; D01H7/22; D01H7/2283
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
AN ELECTROMAGNETIC FRICTION CLUTCH-BRAKE DRIVE COMPRISING, A FIRST CLUTCH PLATE INCLUDING MEANS FOR ROTATIONAL SUPPORT OF THE PLATE, A SECOND CLUTCH PLATE INCLUDING MEANS FOR ROTATIONAL SUPPORT SO THAT THE SECOND CLUTCH PLATE IS AXIALLY MOVABLE OVER A PREDETERMINED GAP FOR ENGAGEMENT WITH SAID FIRST CLUTCH PLATE, MEANS FOR ESTABLISHING ELECTROMAGNETIC FLUX EXTENDING ACROSS THE GAP BETWEEN SAID FIRST AND SECOND PLATES FOR MOVING SAID SECOND PLATE INTO ENGAGEMENT WITH SAID FIRST PLATE, AND MEANS FOR ESTABLISHING A PULSED MAGNETIC FIELD EXTENDING TO SAID SCOND CLUTCH TO INDUCE EDDY CUR-
Claim 2
Dependent Claim
90 words
AN ELECTROMAGNETIC FRICTION CLUTCH-BRAKE DRIVE COMPRISING, A FIRST CLUTCH PLATE INCLUDING MEANS FOR ROTATIONAL SUPPORT OF THE PLATE, A SECOND CLUTCH PLATE INCLUDING MEANS FOR ROTATIONAL SUPPORT SO THAT THE SECOND CLUTCH PLATE IS AXIALLY MOVABLE OVER A PREDETERMINED GAP FOR ENGAGEMENT WITH SAID FIRST CLUTCH PLATE, MEANS FOR ESTABLISHING ELECTROMAGNETIC FLUX EXTENDING ACROSS THE GAP BETWEEN SAID FIRST AND SECOND PLATES FOR MOVING SAID SECOND PLATE INTO ENGAGEMENT WITH SAID FIRST PLATE, AND MEANS FOR ESTABLISHING A PULSED MAGNETIC FIELD EXTENDING TO SAID SCOND CLUTCH TO INDUCE EDDY CUR-
References Cited (Backward Citations)
US363196A
Cited
US2956658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |