US4522289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retainer ring for a freewheel clutch
Assignee: Ringspann Albrecht Maurer KG
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Filing: 1982-12-22
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Granted: 1985-06-11
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Expires: 2002-12-22
Abstract
Abstract A retainer ring for a freewheel clutch comprises an annular disc and a plurality of sprag-guiding clips mounted on a radial face of the annular disc in a circumferential distribution about the disc axis. Each clip extends parallel to the disc axis and holds a sprag captive. Each clip has two parallel, circumferentially spaced legs extending from the radial disc face and being parallel to the disc axis. The legs extend along opposite sides of the circumferential surface of the sprag. Each clip further has a web interconnecting the clip legs at ends thereof remote from the radial face of the annular disc. The web extends along one of the end faces of the respective sprag.
Inventors
- 👤 Emil Giese
- 👤 Ruprecht Maurer
- 👤 Max Hagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:50
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/06; F16D41/064; F16D41/066; F16D41/067
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
156 words
A retainer ring for a freewheel clutch, comprising: (a) an annular disc having an axis and two opposite faces perpendicular to said axis; and (b) a plurality of separate, mutually independent sprag-guiding clips mounted on one of said faces of said annular disc in a circumferential distribution about said axis; each clip extending parallel to said axis and defining a cage for holding captive by itself, at least in a radial direction, a sprag having a circumferential surface and opposite end faces; each clip comprising (1) two parallel, circumferentially spaced legs extending from said one face and being parallel to said axis; said legs bounding said cage and extending along opposite sides of the circumferential surface of the sprag; and (2) a web interconnecting said two legs at ends thereof remote from said one face of said annular disc; said web bounding said cage and extending along one of the end faces of the respective sprag.
Claim 2
Dependent Claim
156 words
A retainer ring for a freewheel clutch, comprising: (a) an annular disc having an axis and two opposite faces perpendicular to said axis; and (b) a plurality of separate, mutually independent sprag-guiding clips mounted on one of said faces of said annular disc in a circumferential distribution about said axis; each clip extending parallel to said axis and defining a cage for holding captive by itself, at least in a radial direction, a sprag having a circumferential surface and opposite end faces; each clip comprising (1) two parallel, circumferentially spaced legs extending from said one face and being parallel to said axis; said legs bounding said cage and extending along opposite sides of the circumferential surface of the sprag; and (2) a web interconnecting said two legs at ends thereof remote from said one face of said annular disc; said web bounding said cage and extending along one of the end faces of the respective sprag.
Claim 3
Dependent Claim
23 words
A retainer ring as defined in claim 1, wherein said clips have a U-shaped configuration as viewed radially with respect to said axis.
Claim 4
Dependent Claim
49 words
A retainer ring as defined in claim 1, wherein said web is a first web; further comprising a second web interconnecting said legs at ends thereof remote from said first web, whereby said clips have a configuration of a rectangular frame as viewed radially with respect to said axis.
Claim 5
Dependent Claim
46 words
A retainer ring as defined in claim 1, further comprising securing tabs forming part of and projecting edgewise from said legs and mounting openings provided in said one face of said annular disc; each said tab passing through a mounting opening aligned with the respective tab.
Claim 6
Dependent Claim
21 words
A retainer ring as defined in claim 1, wherein said annular disc and said clips are made from stamped-out sheet metal.
Claim 7
Dependent Claim
39 words
A retainer ring as defined in claim 1, wherein at least one of said legs has an inner face having a radially oriented curvature conforming to an arcuate pivotal motion of the sprag during clutch-engagement and clutch-disengagement operation thereof.
Claim 8
Dependent Claim
26 words
A retainer ring as defined in claim 1, wherein said freewheel clutch has an inner race; said annular disc being frictionally connected with said inner race.
Claim 9
Dependent Claim
26 words
A retainer ring as defined in claim 1, wherein said freewheel clutch has an outer race; said annular disc being frictionally connected with said outer race.
Claim 10
Dependent Claim
78 words
A retainer ring as defined in claim 1, wherein said annnular disc is a first annular disc; further comprising a second annular disc disposed coaxially with said first annular disc; said second annular disc having a face oriented towards said one face of said first annular disc; said clips being mounted on said face of said second annular disc adjacent the web of each said clip; said clips connecting said first and second annular discs to one another.
Claim 11
Dependent Claim
23 words
A retainer ring as defined in claim 1, wherein said web of each clip has an aperture for accommodating a sprag pressing spring.
Claim 12
Dependent Claim
31 words
A retainer ring as defined in claim 1, wherein said one face of said annular disc has, between said legs of each clip, an aperture for accommodating a sprag pressing spring.
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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) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |