US3222884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spindle coupling
Assignee: Blaw Knox Co
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Filing: 1964-05-11
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Granted: 1965-12-14
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Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 Lyle David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:13
CPC Classifications
B; B21; B21B; B21B35/00; B21B35/14; B21B35/141; F; F16; F16D; F16D1/00; F16D1/10; F16D1/101; Y; Y10; Y10S; Y10S464/00; Y10S464/901; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17854; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/7021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A SPINDLE COUPLING COMPRISING A CYLINDRICAL MALE COUPLING MEMBER HAVING A RECESSED PORTION AT A SIDE THEREOF PROVIDING A SURFACE EXTENDING GENERALLY LONGITUDINALLY OF THE MALE COUPLING MEMBER, A FEMALE COUPLING MEMBER HAVING A SOCKET RECEIVING THE MALE COUPLING MEMBER, THE FEMALE COUPLING MEMBER HAVING A GENERALLY LONGITUDINALLY EXTENDING SURFACE DISPOSED OPPOSITE SAID SURFACE OF THE MALE COUPLING MEMBER WHEN THE MALE COUPLING MEMBER IS INSERTED INTO THE FEMALE COUPLING MEMBER, THE OPPOSED SURFACES OF THE MALE AND FEMALE COUPLING MEMBERS AS INITIALLY FORMED BEFORE THE MALE COUPLING MEMBER IS INSERTED INTO THE FEMALE COUPLING MEMBER BEING DISPOSED AT AN ANGLE TO EACH OTHER PROVIDING, WHEN THE MALE COUPLING MEMBER IS INSERTED INTO THE FEMALE COUPLING MEMBER, A SPACE THEREBETWEEN TAPERING FROM RELATIVELY SMALL TO RELATIVELY GREAT WIDTH IN THE DIRECTION FROM THE BOTTOM OF THE SOCKET OF THE FEMALE COUPLING MEMBER OUTWARDLY, A GENERALLY WEDGE-SHAPED DEVICE IN SAID SPACE CONNECTING THE COUPLING MEMBERS TO TURN TOGETHER WHEN ONE OF THEM IS DRIVEN, SAID DEVICE BEING MOVABLE RELATIVELY TO THE FEMALE COUPLING MEMBER, AND STOP MEANS LIMITING SUCH RELATIVE MOVEMENT.
Claim 2
Dependent Claim
180 words
A SPINDLE COUPLING COMPRISING A CYLINDRICAL MALE COUPLING MEMBER HAVING A RECESSED PORTION AT A SIDE THEREOF PROVIDING A SURFACE EXTENDING GENERALLY LONGITUDINALLY OF THE MALE COUPLING MEMBER, A FEMALE COUPLING MEMBER HAVING A SOCKET RECEIVING THE MALE COUPLING MEMBER, THE FEMALE COUPLING MEMBER HAVING A GENERALLY LONGITUDINALLY EXTENDING SURFACE DISPOSED OPPOSITE SAID SURFACE OF THE MALE COUPLING MEMBER WHEN THE MALE COUPLING MEMBER IS INSERTED INTO THE FEMALE COUPLING MEMBER, THE OPPOSED SURFACES OF THE MALE AND FEMALE COUPLING MEMBERS AS INITIALLY FORMED BEFORE THE MALE COUPLING MEMBER IS INSERTED INTO THE FEMALE COUPLING MEMBER BEING DISPOSED AT AN ANGLE TO EACH OTHER PROVIDING, WHEN THE MALE COUPLING MEMBER IS INSERTED INTO THE FEMALE COUPLING MEMBER, A SPACE THEREBETWEEN TAPERING FROM RELATIVELY SMALL TO RELATIVELY GREAT WIDTH IN THE DIRECTION FROM THE BOTTOM OF THE SOCKET OF THE FEMALE COUPLING MEMBER OUTWARDLY, A GENERALLY WEDGE-SHAPED DEVICE IN SAID SPACE CONNECTING THE COUPLING MEMBERS TO TURN TOGETHER WHEN ONE OF THEM IS DRIVEN, SAID DEVICE BEING MOVABLE RELATIVELY TO THE FEMALE COUPLING MEMBER, AND STOP MEANS LIMITING SUCH RELATIVE MOVEMENT.
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |