Patent US3290071A successfully refreshed from Google Patents.
US3290071A
Expired / Lapsed
US
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Locking device-spanner nut
Assignee: RTX Corp
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Filing: 1964-11-12
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Granted: 1966-12-06
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Expires: 1984-11-12
Abstract
No abstract record available.
Inventors
- 👤 Edward H Kusiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:15
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/02; B64C11/04; F; F16; F16B; F16B39/00; F16B39/02; F16B39/08; F16B2200/00; F16B2200/69; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/974; Y10S411/983
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A LOCKING DEVICE FOR SECURING A THRUST NUT TO A SHAFT AGAINST ROTATION RELATIVE THERETO COMPRISING A LOCKING RING SECURED TO THE SHAFT AGAINST ROTATION AND HAVING A RIGID LUG ON ONE FACE THEREOF, A LOCKING CUP ON THE SHAFT HAVING ITS BOTTOM ABUTTING SAID FACE OF SAID RING AND HAVING A LOCKING SLOT IN BOTH THE BOTTOM AND THE SIDE WALL OF SAID CUP AT THE CORNER WHERE THEY INTERSECT IN WHICH SAID LUG IS RECEIVABLE, AND A NUT THREADED ONTO THE END OF SAID SHAFT AND PROJECTING INTO SAID CUP WITH THE SIDEWALL OF SAID CUP CLOSELY OVERLYING THE EXTERNAL SURFACE OF SAID NUT, SAID NUT HAVING AN AXIAL GROOVE IN ITS EXTERNAL SURFACE INTO WHICH A PORTION OF THE RIM OF SAID CUP IS ADAPTED TO BE INDENTED FOR LOCKING SAID NUT AGAINST ROTATION RELATIVE TO SAID SHAFT.
Claim 2
Dependent Claim
141 words
A LOCKING DEVICE FOR SECURING A THRUST NUT TO A SHAFT AGAINST ROTATION RELATIVE THERETO COMPRISING A LOCKING RING SECURED TO THE SHAFT AGAINST ROTATION AND HAVING A RIGID LUG ON ONE FACE THEREOF, A LOCKING CUP ON THE SHAFT HAVING ITS BOTTOM ABUTTING SAID FACE OF SAID RING AND HAVING A LOCKING SLOT IN BOTH THE BOTTOM AND THE SIDE WALL OF SAID CUP AT THE CORNER WHERE THEY INTERSECT IN WHICH SAID LUG IS RECEIVABLE, AND A NUT THREADED ONTO THE END OF SAID SHAFT AND PROJECTING INTO SAID CUP WITH THE SIDEWALL OF SAID CUP CLOSELY OVERLYING THE EXTERNAL SURFACE OF SAID NUT, SAID NUT HAVING AN AXIAL GROOVE IN ITS EXTERNAL SURFACE INTO WHICH A PORTION OF THE RIM OF SAID CUP IS ADAPTED TO BE INDENTED FOR LOCKING SAID NUT AGAINST ROTATION RELATIVE TO SAID SHAFT.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |