US4150850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam laminates and headliners
Assignee: Indian Head Industries Inc
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Filing: 1977-09-29
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Granted: 1979-04-24
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Expires: 1997-09-29
Abstract
Abstract The disclosed foam laminate preferably includes a corrugated paper sheet, a layer of thermosetting resin foam wherein the corrugations extend into and are bonded to the foam layer and a relatively flexible finish sheet bonded to the foam layer. The corrugated sheet preferably includes a corrugated paper sheet bonded to a relatively flat sheet. In the disclosed automotive headliner, the corrugations preferably extend perpendicular to the headliner side edges, providing support for the concave midportion of the headliner and preventing delamination of the paper and foam laminae.
Inventors
- 👤 Ralph G. Doerfling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:52
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/20; B32; B32B; B32B29/00; B32B29/08; B32B29/002; B32B29/007; B32B3/00; B32B3/26; B32B3/28; B32B33/00; B32B38/00; B32B38/18; B32B38/1866; B32B5/00; B32B5/18; B32B5/20; B32B38/0012; B32B2038/0028; B32B2038/0052; B32B2038/0076; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2266/06; B32B2307/00; B32B2307/10; B32B2605/00; B32B2605/003; B60; B60R; B60R13/00; B60R13/02; B60R13/0212; B60R13/0225; B60R13/08; B60R13/0815; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1025; Y10T428/00; Y10T428/23907; Y10T428/2395; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24512; Y10T428/24612; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/249921; Y10T428/249953; Y10T428/24996; Y10T428/249987; Y10T428/249991; Y10T428/249992
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
153 words
A self-supporting sound and energy foam laminate, comprising: a corrugated paper sheet having a plurality of generally parallel projecting corrugations bonded to a relatively flat sheet, a relatively flexible open cell thermosetting resin foam layer covering said corrugations with said corrugations projecting into and permanently bonding to said resin foam layer and a relatively soft, energy absorbing finish sheet overlying and bonded to said resin foam layer, said finish sheet having a separate self-sustained foam layer having a plurality of spaced perforations overlying and bonded to said resin foam layer and a relatively soft energy absorbing cover overlying said self-sustained foam layer said cover spaced from said paper corrugations by said foam layer and said separate foam layer, said finish sheet forming a laminate with the resin foam layer located between and bonded to said finish and corrugated sheet with a space between said corrugated and flat sheets being open to absorb sound.
Claim 2
Dependent Claim
153 words
A self-supporting sound and energy foam laminate, comprising: a corrugated paper sheet having a plurality of generally parallel projecting corrugations bonded to a relatively flat sheet, a relatively flexible open cell thermosetting resin foam layer covering said corrugations with said corrugations projecting into and permanently bonding to said resin foam layer and a relatively soft, energy absorbing finish sheet overlying and bonded to said resin foam layer, said finish sheet having a separate self-sustained foam layer having a plurality of spaced perforations overlying and bonded to said resin foam layer and a relatively soft energy absorbing cover overlying said self-sustained foam layer said cover spaced from said paper corrugations by said foam layer and said separate foam layer, said finish sheet forming a laminate with the resin foam layer located between and bonded to said finish and corrugated sheet with a space between said corrugated and flat sheets being open to absorb sound.
Claim 3
Dependent Claim
176 words
An automotive headliner having opposed side edges along its length supporting the concave mid-portion located between said side edges, the headliner having a greater length than width, comprising a corrugated paper substrate sheet having generally parallel projecting corrugations extending generally perpendicular to said headliner side edges providing rigidity between said side edges, a relatively flexible open cell thermosetting resin foam layer bonded to the corrugated face of said paper sheet with said corrugations projecting into and bonded to said foam layer and a flexible finish sheet overlying said foam layer, on the convex side of said headliner, said finish sheet comprising a relatively soft energy absorbing portion and a separate self-sustained, pervious layer wherein said relatively soft energy absorbing portion is spaced from said corrugations by said resin foam layer and by said self-sustained, pervious layer, said finish sheet forming a laminate with the foam layer located between and bonded to said sheet and said corrugations adding rigidity to said laminate and increasing the bonded area between the paper sheet and said foam layer, eliminating delamination.
Claim 4
Dependent Claim
176 words
An automotive headliner having opposed side edges along its length supporting the concave mid-portion located between said side edges, the headliner having a greater length than width, comprising a corrugated paper substrate sheet having generally parallel projecting corrugations extending generally perpendicular to said headliner side edges providing rigidity between said side edges, a relatively flexible open cell thermosetting resin foam layer bonded to the corrugated face of said paper sheet with said corrugations projecting into and bonded to said foam layer and a flexible finish sheet overlying said foam layer, on the convex side of said headliner, said finish sheet comprising a relatively soft energy absorbing portion and a separate self-sustained, pervious layer wherein said relatively soft energy absorbing portion is spaced from said corrugations by said resin foam layer and by said self-sustained, pervious layer, said finish sheet forming a laminate with the foam layer located between and bonded to said sheet and said corrugations adding rigidity to said laminate and increasing the bonded area between the paper sheet and said foam layer, eliminating delamination.
Claim 5
Dependent Claim
20 words
The foam laminate defined in claim 2 characterized in that said finish sheet is a carpet having a projecting nap.
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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) | 1982-04-23 | 1982-10-23 | 1983-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-23 | 1986-10-23 | 1987-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-23 | 1990-10-23 | 1991-04-24 | $7700.00 | Window Closed / Lapsed |