US2745527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic fluid mixture clutch
Assignee: Eaton Corp
•
Filing: 1951-12-21
•
Granted: 1956-05-15
•
Expires: 1971-12-21
Abstract
No abstract record available.
Inventors
- 👤 Winther Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:23
CPC Classifications
F; F16; F16D; F16D37/00; F16D37/02; F16D2037/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A MAGNETIC CLUTCH COMPRISING MAGNETIC DRIVING AND DRIVEN MEMBERS ONE OF WHICH IS CONSTITUTED BY FIRST AND SECOND SPACED INNER AND OUTER MAGNETIC CYLINDERS CONCENTRIC ABOUT A CENTER LINE, SAID CYLINDERS BEING JOINTED AT ONE END AND HAVING RADIALLY DISPOSED PORTIONS AT THEIR OTHER ENDS PROVIDING BETWEEN THEM A RADIALLY DISPOSED SPACE, THE OTHER MEMBER COMPRISING A THIRD AND INTERMEDIATE CONCENTRIC MAGNETIC CYLINDER LOCATED IN SPACED TELESCOPIC RELATION BETWEEN THE FIRST AND SECOND SPACED CYLINDERS TO PROVIDE RADIALLY SPACED INNER AND OUTER CYLINDRIC MAGNETIC GAPS, SAID INTERMEDIATE CYLINDER BEING OPEN WHERE THE FIRST AND SECOND CYLINDERS ARE JOINED, A RADIALLY
Claim 2
Dependent Claim
100 words
A MAGNETIC CLUTCH COMPRISING MAGNETIC DRIVING AND DRIVEN MEMBERS ONE OF WHICH IS CONSTITUTED BY FIRST AND SECOND SPACED INNER AND OUTER MAGNETIC CYLINDERS CONCENTRIC ABOUT A CENTER LINE, SAID CYLINDERS BEING JOINTED AT ONE END AND HAVING RADIALLY DISPOSED PORTIONS AT THEIR OTHER ENDS PROVIDING BETWEEN THEM A RADIALLY DISPOSED SPACE, THE OTHER MEMBER COMPRISING A THIRD AND INTERMEDIATE CONCENTRIC MAGNETIC CYLINDER LOCATED IN SPACED TELESCOPIC RELATION BETWEEN THE FIRST AND SECOND SPACED CYLINDERS TO PROVIDE RADIALLY SPACED INNER AND OUTER CYLINDRIC MAGNETIC GAPS, SAID INTERMEDIATE CYLINDER BEING OPEN WHERE THE FIRST AND SECOND CYLINDERS ARE JOINED, A RADIALLY
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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) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |