US3806180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deformable energy absorbing bumper
Assignee: Individual
•
Filing: 1972-02-14
•
Granted: 1974-04-23
•
Expires: 1992-02-14
Abstract
Abstract An energy absorbing bumper construction incorporating easily replaceable, progressively deformable structure in the form of transversely extending pipe-like members arranged for progressive deformation between inner and outer bumper and bumper support members.
Inventors
- 👤 R Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:59
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/18; B60R2019/186
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
111 words
Automobile bumper construction comprising: an outer longitudinally-extending bumper member, an inner generally parallel bumper supporting member, and a permanently deformable energy absorbing element including a plurality of longitudinally extending tubes of varying effective diameter and positioned one within another, each of said tubes having a principal mutually parallel longitudinally extending axis, and positioned between said bumper and bumper support members to be sequentially deformable; and telescoping means interconnecting said bumper member and bumper support member to press the same into contact with a surface of the largest diameter tube; whereby upon the occurrence of substantial impact upon said bumper member, said tubes will permanently deform to absorb the impact energy transmitted.
Claim 2
Dependent Claim
111 words
Automobile bumper construction comprising: an outer longitudinally-extending bumper member, an inner generally parallel bumper supporting member, and a permanently deformable energy absorbing element including a plurality of longitudinally extending tubes of varying effective diameter and positioned one within another, each of said tubes having a principal mutually parallel longitudinally extending axis, and positioned between said bumper and bumper support members to be sequentially deformable; and telescoping means interconnecting said bumper member and bumper support member to press the same into contact with a surface of the largest diameter tube; whereby upon the occurrence of substantial impact upon said bumper member, said tubes will permanently deform to absorb the impact energy transmitted.
Claim 3
Dependent Claim
14 words
Structure in accordance with claim 1, said telescoping means penetrating each of said tubes.
Claim 4
Dependent Claim
20 words
Structure in accordance with claim 1, including positioning means penetrating said bumper and bumper support member spaced from said tubes.
Claim 5
Dependent Claim
33 words
Structure in accordance with claim 1, wherein said tubes are arranged in offset mutual relation to allow for progressive deformation commencing with the largest diameter tube upon impact imparted to said bumper member.
References Cited (Backward Citations)
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US1861691A
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US2573510A
Cited
US3130998A
Cited
US3705740A
Cited
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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) | 1977-04-22 | 1977-10-22 | 1978-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-22 | 1981-10-22 | 1982-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-22 | 1985-10-22 | 1986-04-23 | $7700.00 | Window Closed / Lapsed |