US3679197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressive load carrying bearings
Assignee: Lord Corp
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Filing: 1971-05-27
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Granted: 1972-07-25
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Expires: 1991-05-27
Abstract
Abstract A compressive load carrying laminated bearing comprising alternating bonded layers of a resilient material and a nonextensible material generally concentrically disposed about a common center with successive layers being disposed at successively increasing radii. The fatigue life thereof, when subjected to cylic rotational or torsional motion about the common center, is substantially enhanced by progressively increasing the thickness of the layers of resilient material with increasing radii while simultaneously progressively decreasing the modulus of elasticity of the layers of resilient material with increasing radii.
Inventors
- 👤 Warren E Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:10
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/40; F16F1/403; B; B60; B60G; B60G11/00; B60G11/02; B60G5/00; B60G5/04; B60G5/053; B60G2200/00; B60G2200/30; B60G2200/318; B60G2202/00; B60G2202/10; B60G2202/11; B60G2202/112; Y; Y10; Y10T; Y10T403/00; Y10T403/45; Y10T403/455; Y10T403/458
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
A compressive load carrying laminated bearing comprising alternating bonded layers of a resilient material and a nonextensible material generally concentrically disposed about a common center with successive layers being disposed at successively increasing radii with the thickness of said layers of resilient material progressively increasing with radii while the modulus of elasticity of said layers of resilient material simultaneously decreases with radii.
Claim 2
Dependent Claim
62 words
A compressive load carrying laminated bearing comprising alternating bonded layers of a resilient material and a nonextensible material generally concentrically disposed about a common center with successive layers being disposed at successively increasing radii with the thickness of said layers of resilient material progressively increasing with radii while the modulus of elasticity of said layers of resilient material simultaneously decreases with radii.
Claim 3
Dependent Claim
133 words
A compressive load carrying laminated bearing comprising an inner support member having an outwardly facing convex surface, an outer support member having an inwardly facing concave surface radially spaced from the convex surface of said inner member, said convex and concave surfaces being concentrically disposed about a common center, alternating bonded layers of a resilient material and a non-extensible material disposed between and fixedly secured to the convex and concave surfaces of said inner and outer members, respectively, said layers of non-extensible material being concentrically disposed about said common center, successive layers of said resilient material and non-extensible material being disposed at successively increasing radii with the thickness of said layers of resilient material progressively increasing with radii while the modulus of elasticity of said layers of resilient material simultaneously decreases with radii.
Claim 4
Dependent Claim
133 words
A compressive load carrying laminated bearing comprising an inner support member having an outwardly facing convex surface, an outer support member having an inwardly facing concave surface radially spaced from the convex surface of said inner member, said convex and concave surfaces being concentrically disposed about a common center, alternating bonded layers of a resilient material and a non-extensible material disposed between and fixedly secured to the convex and concave surfaces of said inner and outer members, respectively, said layers of non-extensible material being concentrically disposed about said common center, successive layers of said resilient material and non-extensible material being disposed at successively increasing radii with the thickness of said layers of resilient material progressively increasing with radii while the modulus of elasticity of said layers of resilient material simultaneously decreases with radii.
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |