Patent US3770235A successfully refreshed from Google Patents.
US3770235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resiliently supported seat
Assignee: Flexible Co
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Filing: 1972-03-20
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Granted: 1973-11-06
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Expires: 1992-03-20
Abstract
Abstract A resilient seat support wherein an upper frame and a lower frame are provided in a seat and resilient isolation dampeners support the upper frame on the lower frame. Each isolation dampener includes a pair of bushings positioned in vertical alignment with each other and centering and compression means connecting the bushings and securing the upper and lower frames together by cushioning means as the sole load support members.
Inventors
- 👤 E Klapproth
- 👤 D Sparr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:13
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/502; A; A47; A47C; A47C3/00; A47C3/02; A47C3/025; A47C3/0252; B60N2/506
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
151 words
In a seat Construction including an upper frame and a lower frame, the improvement comprising a plurality of isolation means connecting said upper frame to said lower frame for support thereon, said isolation means each comprising an upper member attached to said upper frame and a lower member aligned with and opposed to said upper member but attached to said lower frame, a resilient bushing positioned between and engaging said upper and lower members to support said upper member without shear forces being normally applied to said bushings, a lower resilient bushing positioned below and engaging said lower member, means connecting said bushings together; and said lower member havng an aperture therein, said lower bushing having a top recess therein below said aperture, said upper bushing having a downwardly facing shoulder engaging said lower member and an end portion extending through said aperture and received in but not filling said recess.
Claim 2
Dependent Claim
151 words
In a seat Construction including an upper frame and a lower frame, the improvement comprising a plurality of isolation means connecting said upper frame to said lower frame for support thereon, said isolation means each comprising an upper member attached to said upper frame and a lower member aligned with and opposed to said upper member but attached to said lower frame, a resilient bushing positioned between and engaging said upper and lower members to support said upper member without shear forces being normally applied to said bushings, a lower resilient bushing positioned below and engaging said lower member, means connecting said bushings together; and said lower member havng an aperture therein, said lower bushing having a top recess therein below said aperture, said upper bushing having a downwardly facing shoulder engaging said lower member and an end portion extending through said aperture and received in but not filling said recess.
Claim 3
Dependent Claim
59 words
In a seat construction as in claim 1, the improvement comprising a center compression means secured to said upper member and extending down through said bushings and operatively engaging the lower end of said lower bushing to secure said bushings and members together, and a metal control sleeve encompassing said compression means to limit the compression of said bushings.
Claim 4
Dependent Claim
38 words
In a seat construction as in claim 1, the improvement of said bushings forming a load transfer means between said frames, and said isolation means operatively securing said bushings to said frames to provide for relative movement therebetween.
Claim 5
Dependent Claim
35 words
In a vehicular seat construction as in claim 1, the improvement of said bushings being operatively engaged with said members to permit three directional movement of the upper frame in relation to the lower frame.
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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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |