US3779592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High strength vehicle bumper
Assignee: Boeing North American Inc
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Filing: 1972-06-01
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Granted: 1973-12-18
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Expires: 1992-06-01
Abstract
Abstract A high strength vehicle bumper resistant to damage caused by impact forces and including a pair of structural members formed from dissimilar metallic materials. Means join the structural members together into a composite member while electrically insulating the dissimilar materials from one another. In a first embodiment of the invention said means comprises an adhesive layer located between the dissimilar materials. In a second embodiment of the invention, said means comprise metal fastener means joining the structural members and shielding means separating and electrically insulating said materials from said fastener means and from each other.
Inventors
- 👤 R Golze
- 👤 R Kienle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:25
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/03
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
115 words
A high strength vehicle bumper of the type having a generally rectangular cross section and adapted to be secured by suitable mounting means to the exterior of a motor vehicle, said bumper including a first structural member formed from a first metal material and having a generally vertically extending portion and a pair of spaced apart arms extending from said portion, a second structural member formed from a second metal material and positioned between the arms of said first member, said first and second members cooperating to define a closed chamber within said bumper, and means joining said members together into a composite assembly while electrically insulating said first and second materials from one another.
Claim 2
Dependent Claim
115 words
A high strength vehicle bumper of the type having a generally rectangular cross section and adapted to be secured by suitable mounting means to the exterior of a motor vehicle, said bumper including a first structural member formed from a first metal material and having a generally vertically extending portion and a pair of spaced apart arms extending from said portion, a second structural member formed from a second metal material and positioned between the arms of said first member, said first and second members cooperating to define a closed chamber within said bumper, and means joining said members together into a composite assembly while electrically insulating said first and second materials from one another.
Claim 3
Dependent Claim
19 words
The motor vehicle bumper of claim 1, wherein said means comprises an adhesive layer located between said dissimilar materials.
Claim 4
Dependent Claim
35 words
The motor vehicle bumper of claim 1 wherein said means comprise metal fastener means joining said structural members and shielding means separating and electrically insulating said materials from said fastener means and from each other.
Claim 5
Dependent Claim
55 words
The motor vehicle bumper of claim 1, wherein said means comprise an insulating pad positioned between said materials and said structural members in a spaced apart contiguous position, fastener means passing through said structural members and maintaining said structural members in said positions, and insulating shielding means positioned between said fastener means and said materials.
Claim 6
Dependent Claim
39 words
The bumper of claim 1 wherein said bumper is adapted to be secured to said vehicle with said first member positioned exteriorly of said second member, said first material having a higher resistance to deformation than said second material.
Claim 7
Dependent Claim
18 words
The bumper of claim 5 wherein said first material has a higher specific gravity than said second material.
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |