Patent US6092118A successfully refreshed from Google Patents.
Patent US3884517A successfully refreshed from Google Patents.
US3884517A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety bumper for trucks
Assignee: Individual
•
Filing: 1973-07-25
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Granted: 1975-05-20
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Expires: 1993-07-25
Abstract
Abstract A bumper for trucks or similar vehicles includes a central main section rigid with the truck main frame. End or wing bumper sections are coupled to the opposite ends of the main section through shear pins which will shear cleanly in response to a specified impact against the wing sections. The wing sections will withstand normal impact before failure of the shear pins. Following failure of the shear pins the wing sections are thrown clear of the main bumper section and the front wheels of the truck by spring means. Tethering cables prevent the wing sections from falling loosely on the roadway. The invention prevents loss of steering control caused by bending of the conventional bumper end portion around the adjacent front wheel.
Inventors
- 👤 Spydell Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:58
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
156 words
In a vehicle having front steering wheels and a front bumper in advance of the front steering wheels including bumper end portions which extend across the wheel treads in spaced relation thereto, the improvement comprising means forming a connection between the bumper end portions and a central body portion of the bumper, said means constructed and arranged to fail mechanically when an end portion of the bumper receives an impact force in excess of a predetermined degree which the bumper end portion can withstand without causing failure of said means, the failure of said means producing separation of the bumper end portion bodily from said central body portion, said means including a shear pin connecting each bumper end portion to the central body portion, and resilient means connected with each bumper end portion whose energy is relEased on failure of the shear pin to force clean separation of the bumper end portion from said body portion.
Claim 2
Dependent Claim
156 words
In a vehicle having front steering wheels and a front bumper in advance of the front steering wheels including bumper end portions which extend across the wheel treads in spaced relation thereto, the improvement comprising means forming a connection between the bumper end portions and a central body portion of the bumper, said means constructed and arranged to fail mechanically when an end portion of the bumper receives an impact force in excess of a predetermined degree which the bumper end portion can withstand without causing failure of said means, the failure of said means producing separation of the bumper end portion bodily from said central body portion, said means including a shear pin connecting each bumper end portion to the central body portion, and resilient means connected with each bumper end portion whose energy is relEased on failure of the shear pin to force clean separation of the bumper end portion from said body portion.
Claim 3
Dependent Claim
48 words
The structure of claim 1 and a flexible tethering element interconnecting each bumper end portion with said central body portion and being of a length to support the separated bumper end portion in free hanging relationship to the central body portion without said end portion contacting the roadway.
Claim 4
Dependent Claim
39 words
The structure of claim 1 and said resilient means comprising expansible coil springs arranged between opposing portions of the central body portion and said bumper end portions and being held under compression prior to failure of said shear pins.
Claim 5
Dependent Claim
58 words
The structure of claim 1 and a bracket element secured fixedly to each bumper end portion and interfitting with an adjacent end of the central body portion and bridging the line of separation between such end and the adjacent bumper end portion, said shear pin mounted in aligned opening means of the bracket element and central body portion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |