Patent US4676928A successfully refreshed from Google Patents.
Patent US3940192A successfully refreshed from Google Patents.
US3940192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Housing flange for worm gear bearings
Assignee: ZF Friedrichshafen AG
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Filing: 1974-07-16
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Granted: 1976-02-24
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Expires: 1994-07-16
Abstract
Abstract A housing for the bearing of a worm gear of the type used in steering gear devices of vehicles is provided with a cover plate having an annular groove or cavity into which the conical disc spring which bears on a ball bearing race can bend or bow in order to give it the freedom required for precise pretensioning or resilient compression against the radial face of the race.
Inventors
- 👤 Gerhard Hagele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:41
CPC Classifications
F; F16; F16C; F16C25/00; F16C25/06; F16C25/08; F16C25/083; B; B62; B62D; B62D3/00; B62D3/02; B62D3/04; F16H; F16H57/00; F16H57/02; F16H57/021; F16C19/00; F16C19/02; F16C19/14; F16C19/16; F16C19/163; F16C2326/00; F16C2326/20; F16C2326/24; F16C2361/00; F16C2361/61; F16C35/00; F16C35/04; F16C35/042
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
94 words
An arrangement for effecting a precisely determined axial force on a thrust bearing within a housing: comprising a housing having a bearing race therein; a cover on said housing; a conical ring-like spring having an edge compressed by said cover to effect axial force of the other edge on said bearing race; and an annular groove in said cover disposed to freely accommodate a bowed portion of said spring as it bows under compression, so as to maintain a precise force on said bearing by avoiding abutment between said bowed portion and said cover.
Claim 2
Dependent Claim
94 words
An arrangement for effecting a precisely determined axial force on a thrust bearing within a housing: comprising a housing having a bearing race therein; a cover on said housing; a conical ring-like spring having an edge compressed by said cover to effect axial force of the other edge on said bearing race; and an annular groove in said cover disposed to freely accommodate a bowed portion of said spring as it bows under compression, so as to maintain a precise force on said bearing by avoiding abutment between said bowed portion and said cover.
Claim 3
Dependent Claim
40 words
An arrangement as set forth in claim 1, including a spacer between said housing and said cover encompassing said spring for predetermining the extent of stress exerted on said spring by said cover dependent upon the thickness of said spacer.
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) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |