US3601459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring loaded bearing
Assignee: Individual
•
Filing: 1969-06-19
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Granted: 1971-08-24
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Expires: 1989-06-19
Abstract
Abstract A plastic bearing constructed to support a shaft. The bearing has an irregular inner surface with spaced bearing points engaging the shaft. A spring is embedded in the plastic body of the bearing which exerts a force keeping the bearing surface in engagement with the shaft as the bearing wears.
Inventors
- 👤 Edward John Cutting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:18
CPC Classifications
F; F16; F16C; F16C27/00; F16C27/06; F16C27/063; F16C29/00; F16C29/12; F16C29/123; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C17/00; F16C17/02; F16C2208/00; F16C2208/20; F16C2208/60; F16C2326/00; F16C2326/20; F16C2326/24; F16C29/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
78 words
A bearing having a generally annular configuration with an irregular bearing surface having spaced apart bearing portions, said bearing portions being constructed to slidably engage an annular surface of a supported member, a supporting member spaced from said bearing portions and engaging said bearing, said bearing being molded of plastic material and having a metal annular leaf spring integrally molded therein, said spring exerting a force tending to urge said bearing portions into engagement with said supported member.
Claim 2
Dependent Claim
78 words
A bearing having a generally annular configuration with an irregular bearing surface having spaced apart bearing portions, said bearing portions being constructed to slidably engage an annular surface of a supported member, a supporting member spaced from said bearing portions and engaging said bearing, said bearing being molded of plastic material and having a metal annular leaf spring integrally molded therein, said spring exerting a force tending to urge said bearing portions into engagement with said supported member.
Claim 3
Dependent Claim
85 words
A bearing assembly comprising a sleeve of molded plastic material and concentrically arranged supported and supporting members, said sleeve being interposed between said members, said sleeve being in supporting engagement with said supporting member, said sleeve having an undulating annular surface with spaced bearing portions in sliding engagement with said supported member, an annular spring ring formed of metallic leaf spring material and integrally molded into said bearing sleeve, said spring ring exerting a force urging said bearing portions into engagement with said supported member.
Claim 4
Dependent Claim
85 words
A bearing assembly comprising a sleeve of molded plastic material and concentrically arranged supported and supporting members, said sleeve being interposed between said members, said sleeve being in supporting engagement with said supporting member, said sleeve having an undulating annular surface with spaced bearing portions in sliding engagement with said supported member, an annular spring ring formed of metallic leaf spring material and integrally molded into said bearing sleeve, said spring ring exerting a force urging said bearing portions into engagement with said supported member.
Claim 5
Dependent Claim
17 words
A bearing assembly according to claim 2 and including: said spring ring having a radially undulating contour.
Claim 6
Dependent Claim
25 words
A bearing assembly according to claim 2 and including: said spring ring having an undulating contour with inwardly extending lobes positioned adjacent said bearing portions.
Claim 7
Dependent Claim
45 words
A bearing assembly according to claim 2 and including: said sleeve having spaced apart support portions engaging said supporting member, said spring ring having an undulating contour with outwardly extending lobes positioned adjacent said support portions and inwardly extending lobes positioned adjacent said bearing portions.
Claim 8
Dependent Claim
85 words
A bearing assembly comprising a cylindrical housing, a plastic sleeve disposed within said housing and a supported member disposed within said sleeve, said sleeve having circumferentially spaced support portions engaging said housing, said sleeve having circumferentially spaced bearing portions engaging said support member, said sleeve being molded of plastic material and having a metallic leaf spring ring integrally molded therein, said sprinG ring having an undulating contour with outwardly extending lobes positioned adjacent said support portions and inwardly extending lobes positioned adjacent said bearing portions.
Claim 9
Dependent Claim
85 words
A bearing assembly comprising a cylindrical housing, a plastic sleeve disposed within said housing and a supported member disposed within said sleeve, said sleeve having circumferentially spaced support portions engaging said housing, said sleeve having circumferentially spaced bearing portions engaging said support member, said sleeve being molded of plastic material and having a metallic leaf spring ring integrally molded therein, said sprinG ring having an undulating contour with outwardly extending lobes positioned adjacent said support portions and inwardly extending lobes positioned adjacent said bearing portions.
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) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |