US3565471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking means
Assignee: SKF AB
•
Filing: 1969-05-15
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Granted: 1971-02-23
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Expires: 1989-05-15
Abstract
Abstract TO INTERCONNECT A BAR AND A TUBULAR MEMBER ENCLOSING THE SAME A MECHANISM IS USED, WHICH COMPRISES AN INTERNAL EXPANDER ELEMENT HAVING MATING CONICAL SURFACES AND BEING WORKED BY A NUT ROTATABLE ON THE THREADED END OF THE BAR. IN ORDER TO PREVENT DEFORMATION OF THE TUBULAR MEMBER, AND ALSO FOR INCREASING THE LOCKING FUNCTION A WASHER IS LOCATED BETWEEN THE BAR AND THE TUBULAR MEMBER. THIS WASHER HAS AN AXIALLY DIRECTED RECESS, WHICH CLOSELY FITS THE CYLINDRICAL END PORTION OF THE TUBULAR MEMBER, AND WITHIN THIS ENCLOSED PORTION THE EXPANDER ELEMENT WORKS.
Inventors
- 👤 Sven Walter Nilsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:29
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/09; F16D1/093; F16D1/094; F16B; F16B3/00; F16B3/06; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041; Y10T279/1045; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7054; Y10T403/7056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |