US3795419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bi-axial shock absorbing bumper
Assignee: Gulf & Western Ind Prod Co
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Filing: 1972-06-09
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Granted: 1974-03-05
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Expires: 1992-06-09
Abstract
Abstract A shock absorbing bumper for a vehicle (or structure) is capable of absorbing impact forces along both a frontal and a lateral axis. The bumper comprises at least one pair of complementary, telescopically engaging chambers at least partially encompassed by a fixed housing, with one of the chambers mounted on a slide bar and the other having an impact-receiving face affixed thereto. The slide bar and consequently the chambers are laterally moveable with respect to the fixed housing. Shock absorbing material, e.g., a resilient plastic foam material, is contained within the chambers and the fixed housing. Frontal impact forces will drive the pair of telescopic chambers together, compressing the shock absorbing material between them. Lateral impact forces will drive the slide bar and chambers laterally with respect to the fixed housing, compressing the shock-absorbing material between the housing and the chambers.
Inventors
- 👤 I Niemkiewicz
- 👤 W Aseltine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:42
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/24; B60R19/26
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
168 words
A shock absorbing bumper compRising an impact-receiving face bar affixed to at least one shock absorbing device, each of which devices comprises two chambers mounted in telescopic engagement one with the other upon a slide bar, said impact receiving face bar being affixed to the outer of said two telescopic chambers, said chambers being at least partially encompassed by a fixed housing which is co-extensive with a segment at least of the longitudinal axis of said chambers, said slide bar being received in sliding engagement by slots provided in said fixed housing, so that said slide bar is movable in a plane transverse to the longitudinal axis of said chambers, shock absorbing material contained within said chambers whereby closing movement of said chambers compresses said shock absorbing material therebetween, and shock absorbing material contained between said chambers and said fixed housing whereby lateral movement of said chambers toward said fixed housing compresses a part at least of said shock absorbing material between said fixed housing and said chambers.
Claim 2
Dependent Claim
168 words
A shock absorbing bumper compRising an impact-receiving face bar affixed to at least one shock absorbing device, each of which devices comprises two chambers mounted in telescopic engagement one with the other upon a slide bar, said impact receiving face bar being affixed to the outer of said two telescopic chambers, said chambers being at least partially encompassed by a fixed housing which is co-extensive with a segment at least of the longitudinal axis of said chambers, said slide bar being received in sliding engagement by slots provided in said fixed housing, so that said slide bar is movable in a plane transverse to the longitudinal axis of said chambers, shock absorbing material contained within said chambers whereby closing movement of said chambers compresses said shock absorbing material therebetween, and shock absorbing material contained between said chambers and said fixed housing whereby lateral movement of said chambers toward said fixed housing compresses a part at least of said shock absorbing material between said fixed housing and said chambers.
Claim 3
Dependent Claim
33 words
The device of claim 1 wherein first and second blocks of shock absorbing material are placed, respectively, adjacent to first and second portions of said fixed housing, between said housing and said chambers.
Claim 4
Dependent Claim
68 words
The bumper of claim 1 wherein said longitudinal support means comprises a bolt passing through said chambers substantially parallel to the longitudinal axis thereof, the outer of said telescopically engaged chambers is closed by an end wall containing an aperture which aperture receives said bolt in sliding engagement therewith, and said bolt carries at its outer end a stop to limit the opening movement travel of said chambers.
Claim 5
Dependent Claim
50 words
The bumper of claim 3 wherein the outer of said telescopically engaged chambers is closed by an end wall containing an aperture which aperture receives said bolt in sliding engagement therewith, and said bolt carries at its outer end a stop to limit the opening movement travel of said chambers.
Claim 6
Dependent Claim
29 words
The bumper of claim 1 wherein surfaces of said shock absorbing device which are in direct contact with said shock absorbing material contain one or more air escape ports.
Claim 7
Dependent Claim
16 words
The bumper of claim 1 wherein said shock absorbing material comprises a resilient foam plastic material.
Claim 8
Dependent Claim
27 words
The bumper of claim 6 wherein said foam plastic material has a density between about 10 pounds per cubic foot and about 20 pounds per cubic foot.
Claim 9
Dependent Claim
27 words
The bumper of claim 6 wherein said foam plastic material is selected from the class consisting of ureaformaldehyde, polyurethane and epoxy plastic foam materials and combinations thereof.
Claim 10
Dependent Claim
163 words
A shock absorbing device comprising at least two chambers mounted in telescopic engagement with one another along a common longitudinal axis defined by longitudinal support means comprising a bolt passing through said chambers, a fixed housing co-extensive with a portion at least of said longitudinal axis of said chambers, a slide bar mounted in lateral sliding engagement relative to said fixed housing, one of said chambers being fixed to said slide bar, the outer end of said bolt having a stop to limit the opening movement travel of said chambers, and the inner end of said bolt being affixed to said slide bar, shock absorbing material contained within said chambers and structurally associated therewith so that said shock absorbing material is compressed by closing movement of said chambers, and shock abosrbing material disposed between said chambers and said fixed housing whereby lateral movement of said chambers compresses a part at least of said shock absorbing material between said fixed housing and said chambers.
Claim 11
Dependent Claim
163 words
A shock absorbing device comprising at least two chambers mounted in telescopic engagement with one another along a common longitudinal axis defined by longitudinal support means comprising a bolt passing through said chambers, a fixed housing co-extensive with a portion at least of said longitudinal axis of said chambers, a slide bar mounted in lateral sliding engagement relative to said fixed housing, one of said chambers being fixed to said slide bar, the outer end of said bolt having a stop to limit the opening movement travel of said chambers, and the inner end of said bolt being affixed to said slide bar, shock absorbing material contained within said chambers and structurally associated therewith so that said shock absorbing material is compressed by closing movement of said chambers, and shock abosrbing material disposed between said chambers and said fixed housing whereby lateral movement of said chambers compresses a part at least of said shock absorbing material between said fixed housing and said chambers.
Claim 12
Dependent Claim
33 words
The device of claim 9 wherein first and second blocks of shock absorbing material are placed, respectively adjacent to first and second portions of said fixed housing between said housing and said chambers.
Claim 13
Dependent Claim
21 words
The device of claim 9 wherein said device further includes an impact receivIng face bar affixed to one of said chambers.
Claim 14
Dependent Claim
15 words
The device of claim 9 wherein said shock absorbing material comprises a foam plastic material.
Claim 15
Dependent Claim
27 words
The device of claim 12 wherein said foam plastic material is selected from the class consisting of urea-formaldehyde, polyurethane, and epoxy foam plastic materials, and combinations thereof.
Claim 16
Dependent Claim
44 words
The device of claim 13 wherein said foam plastic material has a density greater than about 7 pounds per cubic foot and contains open cells, the open cells comprising between about 90 to 99 percent of the total number of cells in said material.
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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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |