Patent US3694019A successfully refreshed from Google Patents.
US3694019A
Expired / Lapsed
US
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Single use inertia absorbing device
Assignee: Honeywell International Inc
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Filing: 1970-11-23
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Granted: 1972-09-26
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Expires: 1990-11-23
Abstract
Abstract An inertia absorbing device is disclosed to absorb relatively large amounts of inertial energy on a one shot or single use basis. Energy is absorbed by elongating or stretching a thermoplastic structure, such as nylon yarn. One example of an end use would be an energy absorbing system for automobile bumpers to prevent low speed (5-10 mph) collision damage. Nylon yarn is attached to pins between a movable bumper mount and the automobile frame, to be stretched on collision.
Inventors
- 👤 John Ed Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:48
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/24; B60R19/26; B60R19/34; F; F16; F16F; F16F7/00; F16F7/12; F16F7/128
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
107 words
A single use energy absorbing device for an automobile bumper to prevent low speed collision damage comprising a length of energy absorbing, non-elastic material which is cold drawable to a permanent elongation, attached at one end to the automobile frame and attached at the other end to a slidable bumper mounting member secured with a shear pin in an openended box-type support, said shear pin being securely seated in said slidable member and passing through a mated opening in said support so that upon low speed collision said material is stretched between said slidable bumper mounting member and said frame to absorb the energy of said collision.
Claim 2
Dependent Claim
107 words
A single use energy absorbing device for an automobile bumper to prevent low speed collision damage comprising a length of energy absorbing, non-elastic material which is cold drawable to a permanent elongation, attached at one end to the automobile frame and attached at the other end to a slidable bumper mounting member secured with a shear pin in an openended box-type support, said shear pin being securely seated in said slidable member and passing through a mated opening in said support so that upon low speed collision said material is stretched between said slidable bumper mounting member and said frame to absorb the energy of said collision.
Claim 3
Dependent Claim
30 words
The device of claim 1 wherein said material is a skein of undrawn yarn. 3 The device of claim 1 whereIn said material is a multiple layer of undrawn film.
Claim 4
Dependent Claim
10 words
The device of claim 2 wherein said yarn is polyamide.
Claim 5
Dependent Claim
10 words
The device of claim 2 wherein said yarn is polypropylene.
Claim 6
Dependent Claim
10 words
The device of claim 3 wherein said film is polyethylene.
Claim 7
Dependent Claim
10 words
The device of claim 4 wherein said polyamide is polycaproamide.
Claim 8
Dependent Claim
10 words
The device of claim 3 wherein said film is polypropylene.
Claim 9
Dependent Claim
11 words
The device of claim 1 wherein the material is a strand.
Claim 10
Dependent Claim
10 words
The device of claim 9 wherein said strand is polyamide.
References Cited (Backward Citations)
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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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |