US3784182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deformable shock absorbing guard
Assignee: COLLISION DEVICES Inc
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Filing: 1971-10-01
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Granted: 1974-01-08
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Expires: 1991-10-01
Abstract
Abstract Energy absorbing crash or collision devices for vehicles or the like to reduce shock of collision by utilizing energy absorbing components which are flexible and compressible and/or rigid and crushable, which components may used singly or in combination, which may be used with single or multiple pressure plates, to effect gradual deceleration upon collision.
Inventors
- 👤 L Sobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:57
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/18; B60R19/22
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
202 words
Energy absorbing crash guard comprising rigid crushable cellular material, and flexible compressible cellular material, said cellular materials arranged as elements in a set with density, cell structure and stiffness of each of said elements predetermined so that when certain impact forces are applied to said set, said flexible compressible cellular material will be compressed, and when said forces are removed, said flexible, compressible cellular material returning substantially to its original condition with said rigid cellular material being unchanged; and when said impact forces applied to said set are greater than said certain impact forces causing said flexible compressible cellular material to reach the limit of its compressibility, thus being incapable of further compression, said rigid crushable cellular material will be acted upon by said greater impact forces by being at least partially crushed thereby dissipating said greater impact forces, by absorption of the excess energy which is converted into work by permanent destruction of at least a portion of said rigid crushable cellular material, and a non-rigid pressure plate contiguous to the impact surface of said flexible compressible cellular material, whereby said pressure plate acts as a means to distribute the impact load over at least a portion of said impact surface.
Claim 2
Dependent Claim
202 words
Energy absorbing crash guard comprising rigid crushable cellular material, and flexible compressible cellular material, said cellular materials arranged as elements in a set with density, cell structure and stiffness of each of said elements predetermined so that when certain impact forces are applied to said set, said flexible compressible cellular material will be compressed, and when said forces are removed, said flexible, compressible cellular material returning substantially to its original condition with said rigid cellular material being unchanged; and when said impact forces applied to said set are greater than said certain impact forces causing said flexible compressible cellular material to reach the limit of its compressibility, thus being incapable of further compression, said rigid crushable cellular material will be acted upon by said greater impact forces by being at least partially crushed thereby dissipating said greater impact forces, by absorption of the excess energy which is converted into work by permanent destruction of at least a portion of said rigid crushable cellular material, and a non-rigid pressure plate contiguous to the impact surface of said flexible compressible cellular material, whereby said pressure plate acts as a means to distribute the impact load over at least a portion of said impact surface.
Claim 3
Dependent Claim
26 words
Energy absorbing crash guard according to claim 1, and a second pressure plate interposed between said flexible compressible cellular material and said rigid crushable cellular material.
Claim 4
Dependent Claim
15 words
Energy absorbing crash guard according to claim 1, said plate being bendable when impacted upon.
Claim 5
Dependent Claim
20 words
Energy absorbing crash guard according to claim 2, at least one of said pressure plates being bendable when impacted upon.
Claim 6
Dependent Claim
15 words
Energy absorbing crash guard according to claim 1, said plate being fracturable when impacted upon.
Claim 7
Dependent Claim
20 words
Energy absorbing crash guard according to claim 2, at least one of said pressure plates being fracturable when impacted upon.
Claim 8
Dependent Claim
52 words
Energy absorbing crash guard comprising compressible material, and at least two pressure plates, one of said plates being a rigid member and the other of said plates being a non-rigid member, said plates serving to distribute a load of an impact force in predetermined varying degrees upon said compressible material upon impact.
Claim 9
Dependent Claim
52 words
Energy absorbing crash guard comprising compressible material, and at least two pressure plates, one of said plates being a rigid member and the other of said plates being a non-rigid member, said plates serving to distribute a load of an impact force in predetermined varying degrees upon said compressible material upon impact.
Claim 10
Dependent Claim
15 words
Energy absorbing crash guard according to claim 7, said non-rigid plate being bendable when impacted.
Claim 11
Dependent Claim
15 words
Energy absorbing crash guard according to claim 7, said non-rigid plate being fracturable when impacted.
Claim 12
Dependent Claim
52 words
Energy absorbing crash guard comprising compressible material, and at least two pressure plates, one of said plates being a bendable member and the other of said plates being a fracturable member, said plates serving to distribute a load of an impact force in predetermined varying degrees upon said compressible material upon impact.
Claim 13
Dependent Claim
52 words
Energy absorbing crash guard comprising compressible material, and at least two pressure plates, one of said plates being a bendable member and the other of said plates being a fracturable member, said plates serving to distribute a load of an impact force in predetermined varying degrees upon said compressible material upon impact.
Claim 14
Dependent Claim
87 words
Energy absorbing crash guard comprising compressible cellular material, and a pressure plate contiguous to the impact surface of said material, said plate being bendable when impacted upon by a predetermined level of impact energy, said plate transmitting impact energy to said compressible cellular material with substantial uniform pressure distribution on the area of said plate in contact with said cellular material when the impact energy exceeds said predetermined level, said cellular material absorbing the quantity of impact energy transmitted by said pressure plate above said predetermined level.
Claim 15
Dependent Claim
87 words
Energy absorbing crash guard comprising compressible cellular material, and a pressure plate contiguous to the impact surface of said material, said plate being bendable when impacted upon by a predetermined level of impact energy, said plate transmitting impact energy to said compressible cellular material with substantial uniform pressure distribution on the area of said plate in contact with said cellular material when the impact energy exceeds said predetermined level, said cellular material absorbing the quantity of impact energy transmitted by said pressure plate above said predetermined level.
Claim 16
Dependent Claim
15 words
Energy absorbing crash guard according to claim 11, wherein said compressible cellular material is flexible.
Claim 17
Dependent Claim
17 words
Energy absorbing crash guard according to claim 11, wherein said compressible cellular material is rigid and crushable.
Claim 18
Dependent Claim
49 words
Energy absorbing crash guard comprising compressible cellular material, and a pressure plate comtiguous to the impact surface of said material, said plate being fracturable when impacted upon, whereby said pressure plate acts as a means to distribute the impact load over at least a portion of said impact surface.
Claim 19
Dependent Claim
49 words
Energy absorbing crash guard comprising compressible cellular material, and a pressure plate comtiguous to the impact surface of said material, said plate being fracturable when impacted upon, whereby said pressure plate acts as a means to distribute the impact load over at least a portion of said impact surface.
Claim 20
Dependent Claim
15 words
Energy absorbing crash guard according to claim 14, wherein said compressible cellular material is flexible.
Claim 21
Dependent Claim
17 words
Energy absorbing crash guard according to claim 14, wherein said compressible cellular material is rigid and crushable.
Claim 22
Dependent Claim
55 words
Energy absorbing crash guard comprising compressible material, a bendable pressure plate, said plate being encased in a substantially flexible protective covering, said covering being contiguous to the impact surface of said compressible material, whereby said pressure plate acts as a means to distribute the impact load over at least a portion of said impact surface.
Claim 23
Dependent Claim
55 words
Energy absorbing crash guard comprising compressible material, a bendable pressure plate, said plate being encased in a substantially flexible protective covering, said covering being contiguous to the impact surface of said compressible material, whereby said pressure plate acts as a means to distribute the impact load over at least a portion of said impact surface.
Claim 24
Dependent Claim
55 words
Energy absorbing crash guard comprising compressible material, a fracturable pressure plate, said plate being encased in a substantially flexible protective covering, said covering being contiguous to the impact surface of said compressible material, whereby said pressure plate acts as a means to distribute the impact load over at least a portion of said impact surface.
Claim 25
Dependent Claim
55 words
Energy absorbing crash guard comprising compressible material, a fracturable pressure plate, said plate being encased in a substantially flexible protective covering, said covering being contiguous to the impact surface of said compressible material, whereby said pressure plate acts as a means to distribute the impact load over at least a portion of said impact surface.
Claim 26
Dependent Claim
36 words
Energy absorbing crash guard comprising compressible cellular material, and a shell-like enclosure encasing said material, whereby said enclosure acts as a means to distribute the impact load over at least a portion of the impact surface.
Claim 27
Dependent Claim
36 words
Energy absorbing crash guard comprising compressible cellular material, and a shell-like enclosure encasing said material, whereby said enclosure acts as a means to distribute the impact load over at least a portion of the impact surface.
References Cited (Backward Citations)
US2724463A
Cited
US3574379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |