US5435619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automobile door
Assignee: Toray Industries Inc
•
Filing: 1994-01-27
•
Granted: 1995-07-25
•
Expires: 2014-01-27
Abstract
Abstract An automobile door comprises a cavity defining door body and a shock absorber consisting of a plurality of tiered foam main members, and resin foam auxiliary members disposed between and connecting the main members to form chambers open transverse to the direction along which the main members are tiered.
Inventors
- 👤 Toshiharu Nakae
- 👤 Fusayoshi Akimaru
- 👤 Syunji Okubo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:06
CPC Classifications
B; B60; B60J; B60J5/00; B60J5/04; B60J5/042; B60J5/0452; B60J5/0422; B60J5/0438; B60J5/0441; B60J5/045; B60R; B60R19/00; B60R19/02; B60R19/18; B60R21/00; B60R21/02; B60R21/04; B60R21/0428; F; F16; F16F; F16F1/00; F16F1/36; F16F1/37; F16F1/373; F16F3/00; F16F3/08; F16F3/087; F16F3/0873; F16F3/0876; F16F7/00; F16F7/12; F16F7/121; B60R2019/186; B60R2019/1866; B60R2019/1886
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
64 words
An automobile door comprising: a door body defining a cavity; and a shock absorber installed in said cavity; said shock absorber including a tiered plurality of resin foam main members, and resin foam auxiliary members disposed between and connecting adjacent of said main members such that a number of chambers are defined open transverse to a direction along which said main members are tiered.
Claim 2
Dependent Claim
64 words
An automobile door comprising: a door body defining a cavity; and a shock absorber installed in said cavity; said shock absorber including a tiered plurality of resin foam main members, and resin foam auxiliary members disposed between and connecting adjacent of said main members such that a number of chambers are defined open transverse to a direction along which said main members are tiered.
Claim 3
Dependent Claim
30 words
A door according to claim 1, wherein said shock absorber is installed in said cavity such that said chambers open in alignment with a thickness direction of said door body.
Claim 4
Dependent Claim
19 words
A door according to claim 2, wherein said main members and auxiliary members are composed of thermoplastic resin foam.
Claim 5
Dependent Claim
17 words
A door according to claim 3, wherein said thermoplastic resin foam is a cross-linked polyolefin resin foam.
Claim 6
Dependent Claim
24 words
A door according to claim 4, wherein an expansion ratio of said cross-linked polyolefin resin foam is in the range of 5 and 40.
Claim 7
Dependent Claim
29 words
A door according to claim 5, wherein an apparent density of said cross-linked polyolefin resin foam is in the range of 0.20 g/cm 3 and 0.025 g/cm 3 .
Claim 8
Dependent Claim
24 words
A door according to claim 6, wherein a gel percentage of said cross-linked polyolefin resin foam is in the range of 15% and 70%.
Claim 9
Dependent Claim
15 words
A door according to claim 7, wherein said cross-linked polyolefin resin foam contains closed cells.
Claim 10
Dependent Claim
23 words
A door according to claim 8, wherein a thickness of said main members is in the range of 3 mm and 16 mm.
Claim 11
Dependent Claim
23 words
A door according to claim 9, wherein a thickness of said auxiliary members is in the range of 4 mm and 8 mm.
Claim 12
Dependent Claim
12 words
A door according to claim 10, wherein said auxiliary members are corrugated.
Claim 13
Dependent Claim
44 words
An automobile shock absorber comprising: a tiered plurality of foamed-resin main members; and auxiliary members disposed between and connecting each of said main members; said auxiliary members defining a plurality of chambers open transverse to a direction along which said main members are tiered.
Claim 14
Dependent Claim
44 words
An automobile shock absorber comprising: a tiered plurality of foamed-resin main members; and auxiliary members disposed between and connecting each of said main members; said auxiliary members defining a plurality of chambers open transverse to a direction along which said main members are tiered.
Claim 15
Dependent Claim
20 words
A shock absorber according to claim 12, wherein said main members and auxiliary members are composed of thermoplastic resin foam.
Claim 16
Dependent Claim
18 words
A shock absorber according to claim 13, wherein said thermoplastic resin foam is a cross-linked polyolefin resin foam.
Claim 17
Dependent Claim
25 words
A shock absorber according to claim 14, wherein an expansion ratio of said cross-linked polyolefin resin foam is in the range of 5 and 40.
Claim 18
Dependent Claim
30 words
A shock absorber according to claim 15, wherein an apparent density of said cross-linked polyolefin resin foam is in the range of 0.20 g/cm 3 and 0.025 g/cm 3 .
Claim 19
Dependent Claim
25 words
A shock absorber according to claim 16, wherein a gel percentage of said cross-linked polyolefin resin foam is in the range of 15% and 70%.
Claim 20
Dependent Claim
16 words
A shock absorber according to claim 17, wherein said cross-linked polyolefin resin foam contains closed cells.
Claim 21
Dependent Claim
24 words
A shock absorber according to claim 18, wherein a thickness of said main members is in the range of 3 mm and 16 mm.
Claim 22
Dependent Claim
24 words
A shock absorber according to claim 19, wherein a thickness of said auxiliary members is in the range of 4 mm and 8 mm.
Claim 23
Dependent Claim
13 words
A shock absorber according to claim 20, wherein said auxiliary members are corrugated.
Claim 24
Dependent Claim
17 words
A shock absorber according to claim 21, wherein said main members and auxiliary members have film-coated surfaces.
Claim 25
Dependent Claim
15 words
A shock absorber according to claim 20, wherein said auxiliary members have sectionally semicircular ridges.
Claim 26
Dependent Claim
15 words
A shock absorber according to claim 20, wherein said auxiliary members have sectionally square ridges.
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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) | 1998-07-24 | 1999-01-23 | 1999-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-24 | 2003-01-23 | 2003-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-24 | 2007-01-23 | 2007-07-25 | $7700.00 | Window Closed / Lapsed |