Patent US3322359A successfully refreshed from Google Patents.
US3322359A
Expired / Lapsed
US
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Core spacer for differential winding machine
Assignee: John Dusenbery Co Inc
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Filing: 1965-01-11
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Granted: 1967-05-30
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Expires: 1985-01-11
Abstract
No abstract record available.
Inventors
- 👤 Nicholas G Dales
- 👤 Roger W Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:26
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
FOR USE ON A DIFFERENTIAL REWINDING MACHINE, THE COMBINATION OF A CORE SPACER HAVING A RADIAL HOLE EXTENDING THROUGH THE WALL THEREOF, A KEY SLIDABLY DISPOSED IN SAID HOLE, SPRING MEANS NORMALLY BIASING THE KEY SO THAT AN END THEREOF EXTENDS BEYOND THE INNER WALL OF THE SPACER, AND A MANDREL HAVING AN AXIAL KEYWAY FORMED THEREIN, SAID MANDREL HAVING A TAPERED END WHICH ENGAGES THE END OF SAID KEY AS THE MANDREL IS INSERTED THROUGH THE CORE SPACER, SAID KEY THEREAFTER ENGAGING SAID KEYWAY TO COUPLE SAID SPACER TO SAID MANDREL.
Claim 2
Dependent Claim
92 words
FOR USE ON A DIFFERENTIAL REWINDING MACHINE, THE COMBINATION OF A CORE SPACER HAVING A RADIAL HOLE EXTENDING THROUGH THE WALL THEREOF, A KEY SLIDABLY DISPOSED IN SAID HOLE, SPRING MEANS NORMALLY BIASING THE KEY SO THAT AN END THEREOF EXTENDS BEYOND THE INNER WALL OF THE SPACER, AND A MANDREL HAVING AN AXIAL KEYWAY FORMED THEREIN, SAID MANDREL HAVING A TAPERED END WHICH ENGAGES THE END OF SAID KEY AS THE MANDREL IS INSERTED THROUGH THE CORE SPACER, SAID KEY THEREAFTER ENGAGING SAID KEYWAY TO COUPLE SAID SPACER TO SAID MANDREL.
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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |