Patent US3224542A successfully refreshed from Google Patents.
US3224542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Force lubricated sprag clutch
Assignee: Formsprag Co
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Filing: 1963-03-11
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Granted: 1965-12-21
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 Thaddeus F Zlotek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:10
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/06; F16D41/063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A FORCE LUBRICATED ROTARY CLURCH MECHANISM INCLUDING A PAIR OF COAXIAL, RADIALLY SPACED AND RELATIVELY ROTATABLE RACES, CLUTCH ELEMENTS ACTING IN CONJUNCTION WITH SAID RACES IN THE ANNULAR SPACE THEREBETWEEN, AND MEANS TO FORCE LUBRICATE SAID SPACE, COMPRISING AN INTEGRAL FORMATION ON A ROTATING ONE OF SAID RACES WHICH HAS A FREE EXPOSED IN THE DIRECTION OF ROTATION OF SAID RACE, SAID FORMATION BEING PROVIDED WITH A LUBRICANT SCOOP PASSAGE THEREIN OPENING FROM SAID FACE AND EXTENDING IN THE FORMATION GENERALLY TANGENTIALLY OF THE ROTATIVE DIRECTION OF SAID ANNULAR SPACE, SAID PASSAGE BEING INCLINED IN THE AXIAL DIRECTION TOWARD SAID SPACE.
Claim 2
Dependent Claim
101 words
A FORCE LUBRICATED ROTARY CLURCH MECHANISM INCLUDING A PAIR OF COAXIAL, RADIALLY SPACED AND RELATIVELY ROTATABLE RACES, CLUTCH ELEMENTS ACTING IN CONJUNCTION WITH SAID RACES IN THE ANNULAR SPACE THEREBETWEEN, AND MEANS TO FORCE LUBRICATE SAID SPACE, COMPRISING AN INTEGRAL FORMATION ON A ROTATING ONE OF SAID RACES WHICH HAS A FREE EXPOSED IN THE DIRECTION OF ROTATION OF SAID RACE, SAID FORMATION BEING PROVIDED WITH A LUBRICANT SCOOP PASSAGE THEREIN OPENING FROM SAID FACE AND EXTENDING IN THE FORMATION GENERALLY TANGENTIALLY OF THE ROTATIVE DIRECTION OF SAID ANNULAR SPACE, SAID PASSAGE BEING INCLINED IN THE AXIAL DIRECTION TOWARD SAID SPACE.
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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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |