Patent US4571133A successfully refreshed from Google Patents.
US4571133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loading washer assembly
Assignee: Motors Liquidation Co
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Filing: 1984-07-23
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Granted: 1986-02-18
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Expires: 2004-07-23
Abstract
Abstract A loading washer assembly includes an annular first washer provided with spaced apart ears on its outer peripheral edge with each of the ears having a return bent portion at its free end, an annular second washer provided with spaced apart notches on its outer peripheral edge for slidably receiving the ears whereby to prevent relative rotation of said washers, the return bent portions of the ears limiting the axial extent of separation of these washers. Each of the washers on their opposed surfaces have circumferentially spaced apart, radial extending raised ribs with the ribs on the first washer rotatively offset from the ribs on the second washer. A normally flat spring ring is interposed between the first washer and the second washer in position so as to be engaged by the opposed sets of ribs whereby the spring ring will be deformed into a wave-like spring upon axial displacement of the first washer toward the second washer.
Inventors
- 👤 Dale W. Lindow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:59
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/006; F16; F16B; F16B31/00; F16B31/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
152 words
A loading washer assembly including an annular first washer provided with spaced apart ears on its outer peripheral edge, an annular second washer provided with spaced apart notches on its outer peripheral edge for slidably receiving said ears whereby to prevent relative rotation of said washers, each of said ears having return bent free end portions extending over said second washer whereby to limit the axial extent of separation of said washers, each of said first and second washers on their opposed surfaces having circumferentially spaced apart, radial extending raised ribs with said ribs on said first washer rotatively offset from said ribs on said second washer, and a normally flat spring ring interposed between said first washer and said second washer in position to be engaged by said ribs whereby said spring ring can be deformed into a wave-like spring upon axial displacement of said first washer toward said second washer.
Claim 2
Dependent Claim
152 words
A loading washer assembly including an annular first washer provided with spaced apart ears on its outer peripheral edge, an annular second washer provided with spaced apart notches on its outer peripheral edge for slidably receiving said ears whereby to prevent relative rotation of said washers, each of said ears having return bent free end portions extending over said second washer whereby to limit the axial extent of separation of said washers, each of said first and second washers on their opposed surfaces having circumferentially spaced apart, radial extending raised ribs with said ribs on said first washer rotatively offset from said ribs on said second washer, and a normally flat spring ring interposed between said first washer and said second washer in position to be engaged by said ribs whereby said spring ring can be deformed into a wave-like spring upon axial displacement of said first washer toward said second washer.
Claim 3
Dependent Claim
37 words
A loading washer assembly according to claim 1 wherein said raised ribs are tapered so that the width and height of each said raised rib progressively increases from its radial inboard end to its radial outboard end.
Claim 4
Dependent Claim
135 words
A loading washing assembly including an annular first washer provided with spaced apart ears on its outer peripheral edge, an annular second washer provided with spaced apart notches on its outer peripheral edge for slidably receiving said ears whereby to prevent relative rotation of said washers, said ears also limiting the axial extent of separation of said washers, each of said washers on their opposed surfaces having circumferentially spaced apart, radial extending raised ribs with said ribs on said first washer rotatively offset from said ribs on said second washer, and a normally flat spring ring interposed between said first washer and said second washer in position to be engaged by said ribs whereby said spring ring can be deformed into a wave-like spring upon axial displacement of said first washer toward said second washer.
Claim 5
Dependent Claim
135 words
A loading washing assembly including an annular first washer provided with spaced apart ears on its outer peripheral edge, an annular second washer provided with spaced apart notches on its outer peripheral edge for slidably receiving said ears whereby to prevent relative rotation of said washers, said ears also limiting the axial extent of separation of said washers, each of said washers on their opposed surfaces having circumferentially spaced apart, radial extending raised ribs with said ribs on said first washer rotatively offset from said ribs on said second washer, and a normally flat spring ring interposed between said first washer and said second washer in position to be engaged by said ribs whereby said spring ring can be deformed into a wave-like spring upon axial displacement of said first washer toward said second washer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-17 | 1989-08-19 | 1990-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-17 | 1993-08-19 | 1994-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-17 | 1997-08-19 | 1998-02-18 | $7700.00 | Window Closed / Lapsed |