Patent US3865418A successfully refreshed from Google Patents.
US3865418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety devices
Assignee: Imperial Metal Industries Kynoch Ltd
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Filing: 1973-07-03
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Granted: 1975-02-11
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Expires: 1993-07-03
Abstract
Abstract An energy absorbing device for a vehicle, the device including an extrudable slug and ram, and a vehicle including such a device, so arranged that movement of the vehicle bumper towards the vehicle results in extrusion of the slug.
Inventors
- 👤 Karel Saxl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:48
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/24; B60R19/26; B60R19/34
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
79 words
An energy absorbing device for a vehicle, said device including a. a container, b. an extrudable slug located at least partially within said container, c. a ram for back extruding said slug, d. a conical head portion of said ram for spreading the extrudate of said extrudable slug, and e. a breaker knife edge operatively associated with said ram for splitting said extrudate, whereby movement of said ram relative to said slug results in back extrusion of said slug.
Claim 2
Dependent Claim
79 words
An energy absorbing device for a vehicle, said device including a. a container, b. an extrudable slug located at least partially within said container, c. a ram for back extruding said slug, d. a conical head portion of said ram for spreading the extrudate of said extrudable slug, and e. a breaker knife edge operatively associated with said ram for splitting said extrudate, whereby movement of said ram relative to said slug results in back extrusion of said slug.
Claim 3
Dependent Claim
46 words
A device as recited in claim 1 wherein said slug is annular having a central passageway therethrough, and wherein said ram has a portion thereof exTending through said central passageway of said slug, and wherein said ram has an enlarged portion thereof contactable with said slug.
Claim 4
Dependent Claim
26 words
A device as recited in claim 2 wherein said container is plastically deformable at a load greater than the load at which said slug is deformable.
Claim 5
Dependent Claim
14 words
A device as recited in claim 3 wherein said container is deformable by rupturing.
Claim 6
Dependent Claim
14 words
A device as recited in claim 3 wherein said container is deformable by stretching.
Claim 7
Dependent Claim
14 words
A device as recited in claim 3 wherein said container is rupturable and stretchable.
Claim 8
Dependent Claim
91 words
A vehicle including a bumper and a device operatively associated with said bumper, said device including a. a deformable container, b. an annular slug having a central passageway therethrough, said slug located at least partially within said container, c. a ram for extruding said slug, said ram having a portion thereof located within said central passageway of said slug and having an enlarged portion thereof contactable with said slug, whereby movement of said bumper relative to said vehicle results in extrusion of said slug and deformation of said container under load.
Claim 9
Dependent Claim
91 words
A vehicle including a bumper and a device operatively associated with said bumper, said device including a. a deformable container, b. an annular slug having a central passageway therethrough, said slug located at least partially within said container, c. a ram for extruding said slug, said ram having a portion thereof located within said central passageway of said slug and having an enlarged portion thereof contactable with said slug, whereby movement of said bumper relative to said vehicle results in extrusion of said slug and deformation of said container under load.
Claim 10
Dependent Claim
26 words
A vehicle as recited in claim 7 wherein said container is plastically deformable at a load greater than the load at which said slug is extruded.
Claim 11
Dependent Claim
14 words
A vehicle as recited in claim 8 wherein said container is deformable by rupturing.
Claim 12
Dependent Claim
14 words
A vehicle as recited in claim 8 wherein said container is deformable by stretching.
Claim 13
Dependent Claim
16 words
A vehicle as recited in claim 8 wherein said container is deformable by rupturing and stretching.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |