Patent US4248400A successfully refreshed from Google Patents.
US4248400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil damper fitting apparatus
Assignee: Individual
•
Filing: 1979-01-30
•
Granted: 1981-02-03
•
Expires: 1999-01-30
Abstract
Abstract The present invention is directed to an oil damper fitting apparatus mounted in a car with the intervention of upper and lower rubber bushings receiving a load primarily produced by shearing stress and secondarily produced by the compressive stress. The upper and lower bushings are respectively disposed on the extensive and compressive sides of the oil damper. Each bushing is defined between a washer and a seat, the washer having an inner diameter slightly larger than the outer diameter of the seat. The upper rubber bushing has a greater elastic constant than the lower rubber bushing and is initially contracted to half the stroke of shearing deflection, the lower rubber bushing being initially compressed to the full stroke of shearing deflection.
Inventors
- 👤 Tatsuya Takagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:41
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/32; F16F9/54; B; B60; B60G; B60G13/00; B60G13/001; B60G13/003; Y; Y10; Y10T; Y10T403/00; Y10T403/46
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
152 words
A support mounting for a rod subjected to limited reciprocation comprising: a support frame including an opening in which said rod is inserted; a shoulder portion formed on said support rod; a lowermost seat adapted to mate with said shoulder portion; at least one lower bushing operatively disposed between said lowermost seat and said opening in said support frame; an upper flange mounted as a sleeve within said opening in said support frame, said upper flange being in slideable engagement with said rod; at least one upper bushing operatively disposed between said upper flange and an upper seat secured to said rod by a fastening means; and said upper bushing having an elastic constant larger than said lower bushing and said fastening means being initially fastened to contract said upper bushing by the middle stroke of shearing deflection and the lower bushing being contracted by approximately the full stroke of shearing deflection.
Claim 2
Dependent Claim
152 words
A support mounting for a rod subjected to limited reciprocation comprising: a support frame including an opening in which said rod is inserted; a shoulder portion formed on said support rod; a lowermost seat adapted to mate with said shoulder portion; at least one lower bushing operatively disposed between said lowermost seat and said opening in said support frame; an upper flange mounted as a sleeve within said opening in said support frame, said upper flange being in slideable engagement with said rod; at least one upper bushing operatively disposed between said upper flange and an upper seat secured to said rod by a fastening means; and said upper bushing having an elastic constant larger than said lower bushing and said fastening means being initially fastened to contract said upper bushing by the middle stroke of shearing deflection and the lower bushing being contracted by approximately the full stroke of shearing deflection.
Claim 3
Dependent Claim
47 words
A supporting mounting according to claim 1, wherein the upper seat includes a washer of material harder than the upper bushing, said washer being flatly shaped and annularly, marginally adhered to the surface of the upper bushing to restrain the outward radial deformation of the upper bushing.
Claim 4
Dependent Claim
51 words
A support mounting according to claim 1, wherein the upper seat includes a washer of material harder than the upper bushing, said washer being formed with a peripheral rim for resilient engagement with the side periphery of the upper bushing and for restraining the outward radial deformation of the upper bushing.
Claim 5
Dependent Claim
35 words
A support mounting according to claim 1, wherein the lower seat includes a flange member having the boss portion thereof fitted in the lower bushing to restrain the inward radial deformation of the lower bushing.
Claim 6
Dependent Claim
33 words
A support mounting according to claim 1, wherein the upper and lower bushings have the shape of a concaved dish, whereby the upper and lower bushings have an increased, effective stroke of deflection.
Claim 7
Dependent Claim
23 words
A support mounting according to claim 1, wherein said at least one lower bushing comprising two bushings separated by a first flange member.
Claim 8
Dependent Claim
25 words
A support mounting according to claim 1 or 6, wherein said at least one upper bushing comprising two bushings separated by a second flange member.
Claim 9
Dependent Claim
15 words
A support mounting according to claim 1, wherein said upper and lower bushings are rubber.
Claim 10
Dependent Claim
55 words
A support mounting according to claim 1, wherein said lower bushing includes a washer of material harder than the lower bushing, said washer being flatly shaped and annularly, marginally adhered to the surface of the lower bushing between said lower bushing and said support frame to restrain the outward radial deformation of the lower bushing.
Claim 11
Dependent Claim
51 words
A support mounting according to claim 1, wherein said lower bushing includes a washer of material harder than the lower bushing, said washer being formed with a peripheral rim for resilient engagement with the side periphery of the lower bushing and for restraining the outward radial deformation of the lower bushing.
Claim 12
Dependent Claim
30 words
A support mounting according to claim 1, wherein said upper flange includes a boss portion fitted in the upper bushing to restrain the inward radial deformation of the upper bushing.
References Cited (Backward Citations)
US2399414A
Cited
US2520757A
Cited
US2685178A
Cited
US2862737A
Cited
US3084963A
Cited
US3845923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |