US3190420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic friction clutch
Assignee: Honeywell Inc
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Filing: 1962-02-26
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Granted: 1965-06-22
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Expires: 1982-02-26
Abstract
No abstract record available.
Inventors
- 👤 Richard S Kampf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:04
CPC Classifications
F; F16; F16D; F16D27/00; F16D27/10; F16D27/108; F16D27/112
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
135 words
AN ELECTRO-MAGNETICALLY OPERATED CLUTCH, INCLUDING IN COMBINATION, A DRIVING ELEMENT, A DRIVEN ELEMENT, CLUTCH MEANS FOR OPERATIVELY CONNECTING OR DISCONNECTING SAID DRIVING AND DRIVEN ELEMENTS, AND MEANS FOR CAUSING ENGAGEMENT AND DISENGAGEMENT OF SAID CLUTCH MEANS INCLUDING, A STATIONARY HOUSING OF MATERIAL SUITABLE FOR CONDUCTING MAGNETIC FLUX AND HAVING POLE FACES THEREON, A COIL OF ELECTRICALLY CONDUCTING WIRE WOUND ON SAID HOUSING SO AS TO INDUCE A MAGNETIC FLUX IN SAID HOUSING WHEN SAID COIL IS ENERGIZED, A RING-SHAPED ARMATURE LOCATED OPPOSITE THE POLE FACES OF SAID HOUSING FOR LIMITED MOVEMENT RELATIVE THERETO, A LIGHT-WEIGHT TUBULAR RETAINER RING SLIDABLY MOUNTED ON SAID HOUSING, AND MEANS SECURING SAID RETAINER RING TO SAID ARMATURE SO THAT SAID RETANER RING IS MOVED BY SAID ARMATURE WHEN SAID COIL IS ENERGIZED AND THEREBY CAUSES ENGAGEMENT OF SAID CLUTCH MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |