Patent DE589937C successfully refreshed from Google Patents.
Patent US3572677A successfully refreshed from Google Patents.
US3572677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient bushing
Assignee: Ford Motor Co
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Filing: 1968-12-11
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Granted: 1971-03-30
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Expires: 1988-12-11
Abstract
Abstract A resilient pivot device which, in its presently preferred embodiment, is constructed to pivotally connect a vehicle suspension member to a vehicle body. The pivot device includes a resilient body that presents greater resistance to linear movement of the suspension member in one direction than to linear displacement in the opposite direction. When used in a vehicle suspension system, the unequal resiliency prevents a resonant condition from developing that might cause vehicle body shake.
Inventors
- 👤 James J Damon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:10
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/38; F16F1/387; B; B60; B60G; B60G7/00; B60G7/02; F16F1/3863; B60G2204/00; B60G2204/40; B60G2204/41; B60G2204/4103; B60G2204/44
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
124 words
A resilient pivot device for pivotally connecting first and second members comprising a resilient means, a first element constructed to be connected to one of said members, said first element supporting said resilient means, a second element constructed to be connected to the other of said members, said second element engaging said resilient means, said resilient means having a first portion compressed when said one member moves linearly in a first direction with respect to said other member, said resilient means having a second portion compressed when said one member moves in an opposite linear direction, said first portion having greater effective resiliency than said second portion, said second portion being formed of material having a higher unit spring rate than said first portion.
Claim 2
Dependent Claim
124 words
A resilient pivot device for pivotally connecting first and second members comprising a resilient means, a first element constructed to be connected to one of said members, said first element supporting said resilient means, a second element constructed to be connected to the other of said members, said second element engaging said resilient means, said resilient means having a first portion compressed when said one member moves linearly in a first direction with respect to said other member, said resilient means having a second portion compressed when said one member moves in an opposite linear direction, said first portion having greater effective resiliency than said second portion, said second portion being formed of material having a higher unit spring rate than said first portion.
Claim 3
Dependent Claim
28 words
The resilient pivot device according to claim 1 and including said resilient means comprising an elastomeric material, said first portion being of greater mass than said second portion.
Claim 4
Dependent Claim
159 words
A resilient pivot device for pivotally connecting first and second members comprising an elastomeric means, a first cylindrical element constructed to be connected to said first member, said first element surround said elastomeric means, a second element constructed to be connected to said second member, said second element being positioned within first element and having its exterior suRface in engagement with said elastomeric means, said elastomeric means having a first portion that is loaded in compression when said first member moves linearly in a first direction with respect to said second member, said elastomeric means having a second portion that is loaded in compression when said first member moves in an opposite linear direction, said device having a lower effective spring rate when said first member moves in said first direction than when said first member moves in said second direction, said second portion being formed of a material having a higher unit spring rate than said first portion.
Claim 5
Dependent Claim
159 words
A resilient pivot device for pivotally connecting first and second members comprising an elastomeric means, a first cylindrical element constructed to be connected to said first member, said first element surround said elastomeric means, a second element constructed to be connected to said second member, said second element being positioned within first element and having its exterior suRface in engagement with said elastomeric means, said elastomeric means having a first portion that is loaded in compression when said first member moves linearly in a first direction with respect to said second member, said elastomeric means having a second portion that is loaded in compression when said first member moves in an opposite linear direction, said device having a lower effective spring rate when said first member moves in said first direction than when said first member moves in said second direction, said second portion being formed of a material having a higher unit spring rate than said first portion.
Claim 6
Dependent Claim
159 words
A resilient pivot device for pivotally connecting first and second members comprising an elastomeric means, a first cylindrical element constructed to be connected to said first member, said first element surround said elastomeric means, a second element constructed to be connected to said second member, said second element being positioned within first element and having its exterior surface in engagement with said elastomeric means, said elastomeric means having a first portion that is loaded in compression when said first member moves linearly in a first direction with respect to said second member, said elastomeric means having a second portion that is loaded in compression when said first member moves in an opposite linear direction, said device having a lower effective spring rate when said first member moves in said first direction than when said first member moves in said second direction, said first portion being bonded to said first element, said second portion being unbonded to said first element.
Claim 7
Dependent Claim
159 words
A resilient pivot device for pivotally connecting first and second members comprising an elastomeric means, a first cylindrical element constructed to be connected to said first member, said first element surround said elastomeric means, a second element constructed to be connected to said second member, said second element being positioned within first element and having its exterior surface in engagement with said elastomeric means, said elastomeric means having a first portion that is loaded in compression when said first member moves linearly in a first direction with respect to said second member, said elastomeric means having a second portion that is loaded in compression when said first member moves in an opposite linear direction, said device having a lower effective spring rate when said first member moves in said first direction than when said first member moves in said second direction, said first portion being bonded to said first element, said second portion being unbonded to said first element.
Claim 8
Dependent Claim
193 words
A resilient pivot device for pivotally connecting first and second members comprising an elastomeric means, a first cylindrical element constructed to be connected to said first member, said first element surround said elastomeric means, a second element constructed to be connected to said second member, said second element being positioned within first element and having its exterior surface in engagement with said elastomeric means, said elastomeric means having a first portion that is loaded in compression when said first member moves linearly in a first direction with respect to said second member, said elastomeric means having a second portion that is loaded in compression when said first member moves in an opposite linear direction, said device having a lower effective spring rate when said first member moves in said first direction than when said first member moves in said second direction, portions of the inner surface of said first element overlapping and normally being spaced apart from the adjacent surface of said first portion of said elastomeric means, said just mentioned adjacent surface engaging said inner surface of said first element when said first member moves in said first direction a preset distance.
Claim 9
Dependent Claim
193 words
A resilient pivot device for pivotally connecting first and second members comprising an elastomeric means, a first cylindrical element constructed to be connected to said first member, said first element surround said elastomeric means, a second element constructed to be connected to said second member, said second element being positioned within first element and having its exterior surface in engagement with said elastomeric means, said elastomeric means having a first portion that is loaded in compression when said first member moves linearly in a first direction with respect to said second member, said elastomeric means having a second portion that is loaded in compression when said first member moves in an opposite linear direction, said device having a lower effective spring rate when said first member moves in said first direction than when said first member moves in said second direction, portions of the inner surface of said first element overlapping and normally being spaced apart from the adjacent surface of said first portion of said elastomeric means, said just mentioned adjacent surface engaging said inner surface of said first element when said first member moves in said first direction a preset distance.
Claim 10
Dependent Claim
174 words
A resilient pivot device for pivotally connecting first and second members comprising an elastomeric means, a first cylindrical element constructed to be connected to said first member, said first element surround said elastomeric means, a second element constructed to be connected to said second member, said second element being positioned within first element and having its exterior surface in engagement with said elastomeric means, said elastomeric means having a first portion that is loaded in compression when said first member moves linearly in a first direction with respect to said second member, said elastomeric means having a second portion that is loaded in compression when said first member moves in an opposite linear direction, said device having a lower effective spring rate when said first member moves in said first direction than when said first member moves in said second direction, the axis of said second element being offset from the axis of said first element, said first portion being bonded to said first element, said second portion being unbonded to said first element.
Claim 11
Dependent Claim
174 words
A resilient pivot device for pivotally connecting first and second members comprising an elastomeric means, a first cylindrical element constructed to be connected to said first member, said first element surround said elastomeric means, a second element constructed to be connected to said second member, said second element being positioned within first element and having its exterior surface in engagement with said elastomeric means, said elastomeric means having a first portion that is loaded in compression when said first member moves linearly in a first direction with respect to said second member, said elastomeric means having a second portion that is loaded in compression when said first member moves in an opposite linear direction, said device having a lower effective spring rate when said first member moves in said first direction than when said first member moves in said second direction, the axis of said second element being offset from the axis of said first element, said first portion being bonded to said first element, said second portion being unbonded to said first element.
Claim 12
Dependent Claim
172 words
A resilient pivot device for pivotaLly connecting first and second members comprising an elastomeric means, a first cylindrical element constructed to be connected to said first member, said first element surround said elastomeric means, a second element constructed to be connected to said second member, said second element being positioned within first element and having its exterior surface in engagement with said elastomeric means, said elastomeric means having a first portion that is loaded in compression when said first member moves linearly in a first direction with respect to said second member, said elastomeric means having a second portion that is loaded in compression when said first member moves in an opposite linear direction, said device having a lower effective spring rate when said first member moves in said first direction than when said first member moves in said second direction, said first portion and said second portion having juxtaposed surfaces, substantial portions of said juxtaposed surfaces being spaced apart when said first member moves in said first direction a preset amount.
Claim 13
Dependent Claim
172 words
A resilient pivot device for pivotaLly connecting first and second members comprising an elastomeric means, a first cylindrical element constructed to be connected to said first member, said first element surround said elastomeric means, a second element constructed to be connected to said second member, said second element being positioned within first element and having its exterior surface in engagement with said elastomeric means, said elastomeric means having a first portion that is loaded in compression when said first member moves linearly in a first direction with respect to said second member, said elastomeric means having a second portion that is loaded in compression when said first member moves in an opposite linear direction, said device having a lower effective spring rate when said first member moves in said first direction than when said first member moves in said second direction, said first portion and said second portion having juxtaposed surfaces, substantial portions of said juxtaposed surfaces being spaced apart when said first member moves in said first direction a preset amount.
Claim 14
Dependent Claim
25 words
The resilient pivot device according to claim 7 and including the axis of said second element being offset from the axis of said first element.
Claim 15
Dependent Claim
28 words
The resilient pivot device according to claim 8 and including said second portion being formed of a material having a higher unit spring rate than said first portion.
References Cited (Backward Citations)
US2715022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |