Patent US3937312A successfully refreshed from Google Patents.
US3937312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retainer for roller clutch
Assignee: Timken US LLC
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Filing: 1974-10-04
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Granted: 1976-02-10
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Expires: 1994-10-04
Abstract
Abstract The retainer is entirely made of resilient molded plastic. A plurality of molded plastic bars interconnect a pair of axially spaced rims. A molded plastic spring is connected to each of a plurality of the bars at a point adjacent one rim. The springs extend angularly from said one rim toward the other rim. The rims, bars, and springs are one integral molded plastic unit.
Inventors
- 👤 Gerard William Gehrke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:30
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/06; F16D41/064; F16D41/066; F16D41/067
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
130 words
A retainer for an overrunning clutch comprising: a first molded plastic rim; a second molded plastic rim axially spaced from the first rim and having an inside diameter at least equal to the outside diameter of the first rim; a plurality of circumferentially spaced molded plastic bars interconnecting the two rims forming roller pockets; and a molded plastic spring connected to each of a plurality of the bars at a point adjacent the second rim and extending angularly from the second rim toward the first rim; the rims, bars, and springs being one integral member with each spring being adapted to be pressed toward its corresponding bar when a roller is placed in the corresponding pocket of the retainer so that each spring exerts a force against the corresponding roller.
Claim 2
Dependent Claim
130 words
A retainer for an overrunning clutch comprising: a first molded plastic rim; a second molded plastic rim axially spaced from the first rim and having an inside diameter at least equal to the outside diameter of the first rim; a plurality of circumferentially spaced molded plastic bars interconnecting the two rims forming roller pockets; and a molded plastic spring connected to each of a plurality of the bars at a point adjacent the second rim and extending angularly from the second rim toward the first rim; the rims, bars, and springs being one integral member with each spring being adapted to be pressed toward its corresponding bar when a roller is placed in the corresponding pocket of the retainer so that each spring exerts a force against the corresponding roller.
Claim 3
Dependent Claim
39 words
A retainer in accordance with claim 1 wherein: the outer diameter of the first rim is less than the inner diameter of the second rim; and each spring is integral with both its corresponding bar and the second rim.
Claim 4
Dependent Claim
26 words
A retainer in accordance with claim 2 wherein: the inside diameters of the springs are at least equal to the outside diameter of the first rim.
Claim 5
Dependent Claim
26 words
A retainer in accordance with claim 3 wherein: each spring is adapted to exert a circumferential force against the longitudinal center portion of the corresponding roller.
Claim 6
Dependent Claim
29 words
A retainer in accordance with Claim 3 wherein each spring is adapted to exert a circumferential force on the corresponding roller along substantially the entire length of the spring.
Claim 7
Dependent Claim
25 words
A retainer in accordance with Claim 3 wherein: the spring is adapted to exert a force against two longitudinally spaced areas on the corresponding roller.
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) | 1979-02-09 | 1979-08-11 | 1980-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-09 | 1983-08-11 | 1984-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-09 | 1987-08-11 | 1988-02-10 | $7700.00 | Window Closed / Lapsed |