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US3752523A Expired / Lapsed US ⏱️ 0.0 years remaining

Impact absorbing vehicle bumper

Assignee: Individual
•
Filing: 1971-12-27
•
Granted: 1973-08-14
•
Expires: 1991-12-27
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Abstract

Abstract A vehicle bumper having an inner cross beam mounted on the vehicle frame and an outer bumper bar extending parallel to the beam in horizontally spaced relation thereto with the bumper bar end portions angling inwardly beyond the beam in protective positions outside of the vehicle fenders, the bumper bar being mounted on the beam by a plurality of U-shaped metal brackets having their legs respectively bolted to the beam and bar so that the bight portions of the brackets will buckle and absorb the impact of a collision force directed inwardly against the bumper bar. The brackets are independently mounted in pairs spaced apart longitudinally of the bumper bar.

Inventors

  • 👤 H Bierbrauer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 11:01
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/18; B60R19/24; B60R2019/1893

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 196 words
In a vehicle bumper a. an inner cross beam mounted on the vehicle frame to extend transversely across one end of the vehicle, b. an outer bumper bar extending generally parallel to the beam in horizontally spaced relation thereto, c. the end portions of the bumper bar angling inwardly beyond the beam with the ends of the beam engaging outwardly thereagainst to resist inward collapse of said end portions, d. the bumper bar being connected to the beam by a plurality of U-shaped brackets mounted in pairs spaced longitudinally of the beam with the brackets in each pair being vertically spaced and opening toward each other and each bracket having one leg bolted to the beam and the other leg bolted to the bumper bar with the bight portion of the bracket extending therebetween, and e. said brackets being formed of relatively nonresilient sheet steel and having the bight portion thereof provided with a medial bend facing the open end of the bracket and extending parallel to the beam so that a collision impact on the outer side of the bumper bar will cause the brackets to resistably collapse about said bend and absorb said impact.
Claim 2
Dependent Claim 196 words
In a vehicle bumper a. an inner cross beam mounted on the vehicle frame to extend transversely across one end of the vehicle, b. an outer bumper bar extending generally parallel to the beam in horizontally spaced relation thereto, c. the end portions of the bumper bar angling inwardly beyond the beam with the ends of the beam engaging outwardly thereagainst to resist inward collapse of said end portions, d. the bumper bar being connected to the beam by a plurality of U-shaped brackets mounted in pairs spaced longitudinally of the beam with the brackets in each pair being vertically spaced and opening toward each other and each bracket having one leg bolted to the beam and the other leg bolted to the bumper bar with the bight portion of the bracket extending therebetween, and e. said brackets being formed of relatively nonresilient sheet steel and having the bight portion thereof provided with a medial bend facing the open end of the bracket and extending parallel to the beam so that a collision impact on the outer side of the bumper bar will cause the brackets to resistably collapse about said bend and absorb said impact.
Claim 3
Dependent Claim 22 words
The subject matter of claim 1 wherein a layer of rubber is bonded to the bumper bar along its entire outer surface.

References Cited (Backward Citations)

US1640145A Cited
US1738458A Cited
US3373630A Cited
US3412628A Cited
US3506295A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-08-13 1977-02-12 1977-08-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-08-13 1981-02-12 1981-08-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-08-13 1985-02-12 1985-08-14 $7700.00 Window Closed / Lapsed

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