US3583693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock absorber
Assignee: LEIGH PRODUCTS Inc
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Filing: 1968-10-03
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Granted: 1971-06-08
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Expires: 1988-10-03
Abstract
Abstract A shock absorber device having a tubular member pivoted at one end and a shaftlike member movable in the tubular member and pivoted at the opposite end, and a cushion seated in the pivoted end of the tubular member and being compressed by the end of the shaftlike member when the body controlled by the shock absorber device is moved to a position causing the shaftlike member to seat on the cushion. The cushion is preferable tubular-shaped and constructed of a plastic material such as polyurethane.
Inventors
- 👤 James R Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:09
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/30; F; F16; F16F; F16F1/00; F16F1/36; F16F1/42; F16F1/422; F16F2236/00; F16F2236/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
126 words
A shock absorber device having an extended position and a depressed position, comprising a tubular member, a fixture pivotally secured to one end of said member for attaching said member to a supporting structure, an elastomeric cushion seated in said tubular member near the end to which said fixture is secured, a freely moving plunger extending into said tubular member through the end of said tubular member opposite said fixture and being spaced from said cushion when the device is in its extended position and movable to a position engaging and compressing said cushion when the device is in its depressed position, and a fixture pivotally secured to the end of said plunger projecting from said tubular member for attaching said plunger to a supporting structure.
Claim 2
Dependent Claim
126 words
A shock absorber device having an extended position and a depressed position, comprising a tubular member, a fixture pivotally secured to one end of said member for attaching said member to a supporting structure, an elastomeric cushion seated in said tubular member near the end to which said fixture is secured, a freely moving plunger extending into said tubular member through the end of said tubular member opposite said fixture and being spaced from said cushion when the device is in its extended position and movable to a position engaging and compressing said cushion when the device is in its depressed position, and a fixture pivotally secured to the end of said plunger projecting from said tubular member for attaching said plunger to a supporting structure.
Claim 3
Dependent Claim
19 words
A shock absorber device as defined in claim 1 in which said tubular member is rectangular in cross section.
Claim 4
Dependent Claim
22 words
A shock absorber device as defined in claim 1 in which said cushion is in the shape of a round tubular member.
Claim 5
Dependent Claim
19 words
A shock absorber device as defined in claim 3 in which said tubular member is rectangular in cross section.
Claim 6
Dependent Claim
21 words
A shock absorber device as defined in claim 1 in which said plunger is constructed of a relatively rigid plastic material.
Claim 7
Dependent Claim
50 words
A shock absorber device as defined in claim 3 in which an end member is disposed in said tubular member adjacent the fixture therefor and a means is attached to said end member and connected to said cushion for holding said cushion in the respective end of said tubular member.
Claim 8
Dependent Claim
17 words
A shock absorber device As defined in claim 1 in which said cushion is constructed of polyurethane.
Claim 9
Dependent Claim
17 words
A shock absorber device as defined in claim 3 in which said cushion is constructed of polyurethane.
Claim 10
Dependent Claim
26 words
A shock absorber device as defined in claim 4 in which said cushion is in the shape of a round tubular member of plastic elastomeric material.
Claim 11
Dependent Claim
24 words
A shock absorber device as defined in claim 4 in which said cushion is in the shape of a round tubular member of polyurethane.
References Cited (Backward Citations)
US1759649A
Cited
US2683034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |