US3923408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for fastening a ring on a shaft
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1974-07-26
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Granted: 1975-12-02
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Expires: 1994-07-26
Abstract
Abstract A ring is fastened on a shaft or axle so as to secure it against a changing axial load. A closed locking ring is provided on the shaft which is permanently deformed so as to rest in an annular groove in the shaft. One face of the locking ring bears against the ring to be secured while its other face is mechanically biased against the flank of the groove. The ring to be secured, which may for example be a pinion, may rest against two locking rings. Alternatively, several grooves may be provided in the shaft for adjusting the position of the ring to be locked.
Inventors
- 👤 Manfred Belsdorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:14
CPC Classifications
F; F16; F16B; F16B17/00; F16B17/006; F16C; F16C35/00; F16C35/04; F16C35/06; F16C35/063; F16D; F16D1/00; F16D1/06; F16D1/064; F16D1/072; F16H; F16H57/00; F16H57/02; F16H57/021; F16B2200/00; F16B2200/40; F16B2200/406; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C2361/00; F16C2361/61; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T403/00; Y10T403/48; Y10T403/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
In combination, a shaft; a fixed collar on said shaft; a ring on said shaft abutting with one face against said collar; an annular groove recessed in said shaft adjacent said collar; a closed locking ring having a permanent radial deformation and disposed in said annular groove in such a manner that one face of said locking ring rests against the ring to be secured while the other face of said locking ring is supported with a mechanical bias by the flank of the groove opposite the ring to be secured; said annular groove having a substantially conical cross-section so that the greatest depth of said groove corresponds approximately to the thickness of said locking ring, said greatest depth being disposed at the side of the groove away from the ring to be secured, said locking ring being conically deformed in such a manner that one face bears against the flank of the groove and the other face supports the ring to be secured; said locking ring is adapted to resist an axial load of said ring and secures said ring on said shaft.
Claim 2
Dependent Claim
184 words
In combination, a shaft; a fixed collar on said shaft; a ring on said shaft abutting with one face against said collar; an annular groove recessed in said shaft adjacent said collar; a closed locking ring having a permanent radial deformation and disposed in said annular groove in such a manner that one face of said locking ring rests against the ring to be secured while the other face of said locking ring is supported with a mechanical bias by the flank of the groove opposite the ring to be secured; said annular groove having a substantially conical cross-section so that the greatest depth of said groove corresponds approximately to the thickness of said locking ring, said greatest depth being disposed at the side of the groove away from the ring to be secured, said locking ring being conically deformed in such a manner that one face bears against the flank of the groove and the other face supports the ring to be secured; said locking ring is adapted to resist an axial load of said ring and secures said ring on 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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |