US4120516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cover member for a safety air-cushion device and a method of producing the same
Assignee: Nissan Motor Co Ltd
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Filing: 1976-12-02
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Granted: 1978-10-17
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Expires: 1996-12-02
Abstract
Abstract A cover member for a safety air-cushion device is made up of a bag-shaped outer laminate of high density polyurethane foam, and a bag-shaped inner laminate of low density polyurethane foam which is integral with the outer laminate, the inner laminate being made by pouring the fluidized material into a mold after solidification of the other fluidized material having been poured into the mold for the formation of the outer laminate.
Inventors
- 👤 Yukio Takamatsu
- 👤 Takashi Wakabayashi
- 👤 Hideyo Noda
- 👤 Kiyoshi Ichikawa
- 👤 Tsuneteru Kamegai
- 👤 Kazuo Ikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:19
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/20; B60R21/215; B60R21/2165; B60R21/21656; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249981
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
141 words
A cover member for substantially covering an expansible air-cushion in a dormant condition, said expansible air-cushion being expanded to break said cover member and thus to get out from said cover member to protect an occupant of a vehicle at a vehicle collision, said cover member comprising: a bag-shaped inner laminate arranged to substantially cover up said expansible air-cushion in a dormant condition and having at least one slit extending through said inner laminate, said inner laminate being made of a relatively low density polyurethane foam; and a bag-shaped outer laminate arranged to cover the outer surface of said inner laminate and having at least one cut portion at its inner surface portion thereof, said outer laminate being made of a relatively high density polyurethane foam and said cut portion being positioned to open to said slit of said inner laminate.
Claim 2
Dependent Claim
141 words
A cover member for substantially covering an expansible air-cushion in a dormant condition, said expansible air-cushion being expanded to break said cover member and thus to get out from said cover member to protect an occupant of a vehicle at a vehicle collision, said cover member comprising: a bag-shaped inner laminate arranged to substantially cover up said expansible air-cushion in a dormant condition and having at least one slit extending through said inner laminate, said inner laminate being made of a relatively low density polyurethane foam; and a bag-shaped outer laminate arranged to cover the outer surface of said inner laminate and having at least one cut portion at its inner surface portion thereof, said outer laminate being made of a relatively high density polyurethane foam and said cut portion being positioned to open to said slit of said inner laminate.
Claim 3
Dependent Claim
25 words
A cover member as claimed in claim 1, in which said inner and outer laminates are integrated to each other at the contacting surfaces thereof.
Claim 4
Dependent Claim
38 words
A cover member as claimed in claim 2, further comprising at least one metal support which is firmly disposed between said inner and outer laminates at a position adjacent an opening portion defined by said bag-shaped inner laminate.
Claim 5
Dependent Claim
32 words
A cover member as claimed in claim 3, in which the densities of the respective inner and outer laminates are 0.2 to 0.5 gr/cm 3 and 0.5 to 1.2 gr/cm 3 .
References Cited (Backward Citations)
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Cited
US4054706A
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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) | 1981-10-16 | 1982-04-17 | 1982-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-16 | 1986-04-17 | 1986-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-16 | 1990-04-17 | 1990-10-17 | $7700.00 | Window Closed / Lapsed |