US3203521A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed magnetic clutch means
Assignee: MICRO BALANCING Inc
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Filing: 1963-02-01
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Granted: 1965-08-31
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Expires: 1983-02-01
Abstract
No abstract record available.
Inventors
- 👤 Karl F Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:50
CPC Classifications
F; F16; F16D; F16D27/00; F16D27/10; F16D27/108; F16D27/112
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
160 words
MAGNETIC CLUTCH MEANS FOR A ROTARY SHAFT DRIVE COMPRISING, A FAME, A DRIVEN SHAFT ROTATABLY IN SAID FRAME, SAID SHAFT HAVING AN AXIAL SHAFTWAY IN ONE END, A PIN MEMBER MOOUNTED IN SAID SHAFTWAY FOR AXIAL MOVEMENT, SAID PIN MEMBER HAVING A CONE POINT AT ONE END A METAL PLATE ROTABLY MOUNTED TO THE OTHER END OF SAID PIN MEMBER ELECTRO-MAGNETIC COIL MEANS FIXEDLY MOUNTED ON SAID FRAME ADJACENT SAID PLATE, SAID SHAFT HAVING A PLURALITY OF EQUALLY SPACED APERTURES EXTENDING TRNSVERSELY THROUGH SAID SHAFTWAY, ADJACENT TO SAID BOTTOM OF SAID SHAFTWAY, A PLURALITY OF BALLS ONE SET IN EACH OF SAID APERTURES, A CLUTCH MEMBER MOUNTED ON SAID SHAFT AND HAVING A TAPERED ORTION ADJACENT SAID BALLS, SAID CLUTCH MEMBER BEING KEYED TO SAID SHAFT BUT MOVABLE AXIALLY ALONG SAID SHAFT SO THAT WHEN SAID COIL IS ENEGIZED SAID PIN MEMBER IS MOVED AND SAID CONE POINT MOVES SAID BALLS OUTWARDLY FORCING SAID CLUTCH M EMBER IN ONE DIRECTION.
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |