US4470857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making foam plastic article
Assignee: RA CASALOU Inc
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Filing: 1982-06-25
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Granted: 1984-09-11
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Expires: 2002-06-25
Abstract
Abstract The method of making a foam plastic cushion or structural part with a plurality of fastening assemblies thereon comprising the steps of applying a moisture proof barrier sheet of plastic to a strip of porous backing material; applying a coating of pressure sensitive adhesive to the barrier sheet; applying a strip of hook or loop material having a backing to the adhesive coating extending laterally outward of the strip of backing material, barrier sheet and adhesive coating extending laterally outward of the strip of hook or loop material; bonding the backing of the strip of hook or loop material to the barrier sheet upon the strip of backing material; successively mounting upon a mold surface of a pair of mold bodies defining a mold cavity a plurality of spaced bonded backing and hook or loop assemblies, with the hook or loop material facing the mold surface; adhering peripheral portions of the strip of backing material and adhesive coating to the mold surface for sealing the fastening assemblies thereon; and introducing molten plastic material into the mold bodies filling the cavity forming a molded foam plastic cushion or structural part, the plastic material of the part bonding to the strips of backing material and hook or loop assemblies. An article of manufacture produced by this method.
Inventors
- 👤 Stephen J. Casalou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:27
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/1271; A; A44; A44B; A44B18/00; A44B18/0069; A44B18/0076; B29C33/00; B29C33/0038; B29C33/0044; B29C33/12; B29C33/14; B60; B60N; B60N2/00; B60N2/58; B60N2/5816; B60N2/5875; B29K; B29K2105/00; B29K2105/04; B29L; B29L2031/00; B29L2031/727; B29L2031/729; B29L2031/771; Y; Y10; Y10S; Y10S5/00; Y10S5/922; Y10T; Y10T24/00; Y10T24/27; Y10T24/2708; Y10T428/00; Y10T428/24; Y10T428/24008; Y10T428/24017
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
187 words
The method of making a foam plastic article with a plurality of fastening assemblies thereon comprising the steps of: securing a moisture proof barrier sheet of plastic material to a strip of porous backing material; applying a coating of pressure sensitive adhesive to said barrier sheet; applying a strip of hook or loop fastener material having a backing to the adhesive coating on said barrier sheet; peripheral portions of said strip of backing material, barrier sheet and adhesive coating extending laterally outward of said strip of hook or loop material; bonding the backing of said strip of hook or loop material to said barrier sheet; successively mounting upon a mold surface of a pair of mold bodies defining a mold cavity a plurality of spaced bonded backing and hook or loop assemblies, with the hook or loop material facing the mold surface; and introducing molten plastic material and a foaming agent into said mold bodies filling said cavity and on cooling forming a molded foam plastic article therein, the plastic material of said article bonding to said strips of porous backing material and hook or loop assemblies.
Claim 2
Independent Claim
187 words
The method of making a foam plastic article with a plurality of fastening assemblies thereon comprising the steps of: securing a moisture proof barrier sheet of plastic material to a strip of porous backing material; applying a coating of pressure sensitive adhesive to said barrier sheet; applying a strip of hook or loop fastener material having a backing to the adhesive coating on said barrier sheet; peripheral portions of said strip of backing material, barrier sheet and adhesive coating extending laterally outward of said strip of hook or loop material; bonding the backing of said strip of hook or loop material to said barrier sheet; successively mounting upon a mold surface of a pair of mold bodies defining a mold cavity a plurality of spaced bonded backing and hook or loop assemblies, with the hook or loop material facing the mold surface; and introducing molten plastic material and a foaming agent into said mold bodies filling said cavity and on cooling forming a molded foam plastic article therein, the plastic material of said article bonding to said strips of porous backing material and hook or loop assemblies.
Claim 3
Dependent Claim
23 words
In the method of claim 1, the foam plastic material of said molded part migrating and dispersing within and throughout said backing material.
Claim 4
Dependent Claim
14 words
In the method of claim 1, said foam plastic article being a vehicle seat.
Claim 5
Dependent Claim
18 words
In the method of claim 1, said foam plastic cushion or structural part being a vehicle seat backrest.
Claim 6
Dependent Claim
18 words
In the method of claim 1, said foam plastic cushion or structural part being a vehicle door panel.
Claim 7
Independent Claim
223 words
The method of making a foam plastic article with a plurality of fastening assemblies thereon comprising the steps of: securing a moisture proof barrier sheet of plastic material to a strip of non-woven plastic backing material; applying a coating of pressure sensitive adhesive to said barrier sheet; applying a strip of hook or loop fastener material having a backing to the coating on said barrier sheet; extending peripheral portions of said strip of backing material, barrier sheet and adhesive coating laterally outward of said strip of hook or loop material; bonding the backing of said strip of hook or loop material to said barrier sheet and strip of backing material; successively mounting upon a mold surface of a pair of mold bodies defining a mold cavity a plurality of spaced bonded backing and hook or loop assemblies, with the hook or loop material facing the mold surface; adhering peripheral portions of said strip of backing material, barrier sheet and adhesive coating to the mold surface for sealing said assemblies thereon and excluding plastic material from said hook or loop material; and introducing molten plastic material and a foaming agent into said mold bodies filling said cavity and on cooling forming a molded plastic article therein, the plastic material of said article bonding to said strips of backing material and hook or loop assemblies.
Claim 8
Independent Claim
223 words
The method of making a foam plastic article with a plurality of fastening assemblies thereon comprising the steps of: securing a moisture proof barrier sheet of plastic material to a strip of non-woven plastic backing material; applying a coating of pressure sensitive adhesive to said barrier sheet; applying a strip of hook or loop fastener material having a backing to the coating on said barrier sheet; extending peripheral portions of said strip of backing material, barrier sheet and adhesive coating laterally outward of said strip of hook or loop material; bonding the backing of said strip of hook or loop material to said barrier sheet and strip of backing material; successively mounting upon a mold surface of a pair of mold bodies defining a mold cavity a plurality of spaced bonded backing and hook or loop assemblies, with the hook or loop material facing the mold surface; adhering peripheral portions of said strip of backing material, barrier sheet and adhesive coating to the mold surface for sealing said assemblies thereon and excluding plastic material from said hook or loop material; and introducing molten plastic material and a foaming agent into said mold bodies filling said cavity and on cooling forming a molded plastic article therein, the plastic material of said article bonding to said strips of backing material and hook or loop assemblies.
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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) | 1987-09-11 | 1988-03-12 | 1988-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-11 | 1992-03-12 | 1992-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-11 | 1996-03-12 | 1996-09-11 | $7700.00 | Window Closed / Lapsed |