Patent US3913963A successfully refreshed from Google Patents.
US3913963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock or energy absorbing apparatus
Assignee: ROAD RESEARCH Ltd
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Filing: 1974-08-05
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Granted: 1975-10-21
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Expires: 1994-08-05
Abstract
Abstract A shock absorbing apparatus for use on heavy load carrying vehicles having a chassis mounted on road wheels comprising a bumper for extending across the width of the vehicle and pivotally mounted on an arm which, at a point remote from the bumper, is pivotally mounted with respect to the chassis, and an energy absorbing device pivotally articulated at spaced points in its length to the arm and with respect to the chassis at a point spaced from the pivotal connection between the arm and the chassis, whereby when the bumper bar is subjected to a force with a momentum in excess of a predetermined value the energy absorbing device will operate to permit movement of the arm to cause displacement of the bumper bar in a direction having a horizontal component.
Inventors
- 👤 Gunter Persicke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:08
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/56; B60R19/02; B60R19/24; B60R19/26; B60R19/32; B60R2019/262
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
138 words
A shock absorbing apparatus for use on heavy load carrying vehicles having a chassis mounted on road wheels, said apparatus comprising a bumper extending across the width of the vehicle, an arm pivotally mountable with respect to the vehicle, said bumper being pivotally mounted on the end of said arm remote from said pivotal connection of said arm with respect to said vehicle, and an energy absorbing device pivotally articulated at spaced points in its length to said arm and with respect to said chassis at a point spaced from said pivotal connection between said arm and said chassis, said energy absorbing device being operable in response to a force with a momentum in excess of a predetermined value to permit movement of said arm to cause displacement of said bumper in a direction having a horizontal component.
Claim 2
Dependent Claim
138 words
A shock absorbing apparatus for use on heavy load carrying vehicles having a chassis mounted on road wheels, said apparatus comprising a bumper extending across the width of the vehicle, an arm pivotally mountable with respect to the vehicle, said bumper being pivotally mounted on the end of said arm remote from said pivotal connection of said arm with respect to said vehicle, and an energy absorbing device pivotally articulated at spaced points in its length to said arm and with respect to said chassis at a point spaced from said pivotal connection between said arm and said chassis, said energy absorbing device being operable in response to a force with a momentum in excess of a predetermined value to permit movement of said arm to cause displacement of said bumper in a direction having a horizontal component.
Claim 3
Dependent Claim
54 words
A shock absorbing apparatus according to claim 1 wherein said arm extends downwardly away from the end portion of said vehicle and said energy absorbing device comprises a compressible device articulated to said chassis and to a mid portion of said arm to permit said bumper to move downwardly towards said vehicle on impact.
Claim 4
Dependent Claim
44 words
A shock absorbing apparatus according to claim 1 wherein said bumper is mounted on a pair of spaced substantially horizontal arms pivoted at their other end portions with respect to said chassis to permit said bumper to swing upwardly towards said vehicle on impact.
Claim 5
Dependent Claim
43 words
A shock absorbing apparatus according to claim 1 wherein said bumper at its ends is curved round and extended alongside an end portion of said vehicle where said bumper end portions are pivoted to said chassis to permit said bumper to swing upwardly.
Claim 6
Dependent Claim
26 words
A shock absorbing apparatus according to claim 1 wherein a device selected from an apron and a net is slung between said bumper and said vehicle.
Claim 7
Dependent Claim
128 words
A heavy load carrying vehicle comprising a chassis mounted on road wheels, a bumper extending across the width oF said vehicle, an arm pivotally mounted with respect to said vehicle, said bumper being pivotally mounted on the end of said arm remote from said pivotal connection of said arm with respect to said vehicle, and an energy absorbing device pivotally articulated at spaced points in its length to said arm and with respect to said chassis at a point spaced from said pivotal connection between said arm and said chassis, said energy absorbing device being operable in response to a force with a momentum in excess of a predetermined value to permit movement of said arm for displacement of said bumper in a direction having a horizontal component.
Claim 8
Dependent Claim
128 words
A heavy load carrying vehicle comprising a chassis mounted on road wheels, a bumper extending across the width oF said vehicle, an arm pivotally mounted with respect to said vehicle, said bumper being pivotally mounted on the end of said arm remote from said pivotal connection of said arm with respect to said vehicle, and an energy absorbing device pivotally articulated at spaced points in its length to said arm and with respect to said chassis at a point spaced from said pivotal connection between said arm and said chassis, said energy absorbing device being operable in response to a force with a momentum in excess of a predetermined value to permit movement of said arm for displacement of said bumper in a direction having a horizontal component.
Claim 9
Dependent Claim
59 words
A heavy load carrying vehicle according to claim 6 wherein said energy absorbing device includes at least one pressure fluid cylinder connected to a pressure fluid circuit which includes means responsive to a fluid operated braking system of said vehicle, whereby the operation of the energy absorbing device will vary as a function of the speed of the vehicle.
Claim 10
Dependent Claim
60 words
A heavy load carrying vehicle according to claim 6 wherein said energy absorbing device includes at least one pressure fluid cylinder connected to a pressure fluid circuit which includes means responsive to the accelerator of the prime mover of said vehicle, whereby the operation of the energy absorbing device will vary as a function of the speed of the vehicle.
Claim 11
Dependent Claim
61 words
A heavy load carrying vehicle according to claim 6 wherein said energy absorbing device includes at least one pressure fluid cylinder connected to a pressure fluid circuit which includes means responsive to the ignition device of the prime mover of said vehicle, whereby the operation of the energy absorbing device will vary as a function of the speed of the vehicle.
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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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |