US3198293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake means
Assignee: Kollsman Instrument Corp
•
Filing: 1963-04-25
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Granted: 1965-08-03
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Expires: 1983-04-25
Abstract
No abstract record available.
Inventors
- 👤 John J Mathews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:41
CPC Classifications
F; F16; F16D; F16D51/00; F16D2121/00; F16D2121/18; F16D2121/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
149 words
A DEVICE OF THE CLASS DESCRIBED INCLUDING A ROTATABLE SHAFT, AN ARMATURE MOUNTED TO SAID SHAFT AND HAVING A CONCIAL SURFACE CONCENTRIC WITH THE LONGITUDINAL AXIS OF SAID SHAFT, A SPRING BIASING SAID ARMATURE TO A FIRST POSI TION, AN ELECTROMAGNET FOR MOVING SAID ARMATURE ALONG SAID AXIS TO SECOND POSITION, A BRAKE DRUM KEYED TO SAID SHAF, A PLURALITY OF BRAKE SHOE CARRYING FINGERS ARRANGED IN A CIRCULAR ARRAY ABOUT SAID AXIS AS A CENTER AND EXTENDING GENERALLY PARALLEL THERETO, SAID FINGERS INTERPOSED BETWEEN SAID CONICAL SURFACE AND SAID BRAKE DRUM, BALL MEANS INTERPOSED BETWEEN AND INDIRECT CONTACT WITH SAID FINGERS AND SAID CONICAL SURFACE IN DIRECT CONTACT WITH EACH, SAID ARMATURE UPON MOVEMENT TO SAID SECOND POSITION HAVING ITS SAID CONICAL SURFACE DRIVE SAID BALLS AGAINST SAID FINGERS THEREBY TRANSMITTING FORCE COMPONENTS WHICH DRIVE SAID BRAKE SHOES AGAINST SAID BRAKE DRUM TO HALT ROTATION OF SAID SHAFT.
References Cited (Backward Citations)
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Cited
US1270533A
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US2213340A
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US2599247A
Cited
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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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |