Patent US4036438A successfully refreshed from Google Patents.
US4247348A
Expired / Lapsed
US
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Process for molding cloth including a fabric layer, the stitches thereof having never been thermally set and molding a cloth-covered foam filled product
Assignee: Sears Manufacturing Co
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Filing: 1979-03-19
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Granted: 1981-01-27
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Expires: 1999-03-19
Abstract
Abstract A method of molding cloth. A special multi-layer cloth is drawn into a mold by means of a vacuum between the cloth and the mold. The cloth includes a fabric layer, stitches of the fabric having never been thermally set, a polyurethane foam layer and a polyvinyl chloride film layer bonded together. After the cloth has conformed to the contours of the mold, the shape of the cloth is fixed to maintain the mold contours. To this end, the cloth may be heated, or polyurethane foam may be poured into the mold and allowed to expand.
Inventors
- 👤 James F. Lischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:53
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/14; B29C44/146; B29C51/00; B29C51/14; B29C51/145; B32B27/00; B32B27/06; B32B27/065; B32B27/12; B32B5/245; D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0007; D06N7/0026; B29K; B29K2313/00; B29L; B29L2009/00; B29L2031/00; B29L2031/751
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
56 words
A process for molding cloth comprising the steps of: drawing the cloth into a mold, the cloth including a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, and an elastic composition layer bonded to the fabric layer; and fixing the shape of the cloth to maintain the mold contours.
Claim 2
Dependent Claim
56 words
A process for molding cloth comprising the steps of: drawing the cloth into a mold, the cloth including a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, and an elastic composition layer bonded to the fabric layer; and fixing the shape of the cloth to maintain the mold contours.
Claim 3
Dependent Claim
64 words
A process for molding cloth comprising the steps of: drawing the cloth into a mold, the cloth including a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, and an elastic composition layer bonded to the fabric layer, the elastic composition layer including a film layer; and fixing the shape of the cloth to maintain the mold contours.
Claim 4
Dependent Claim
64 words
A process for molding cloth comprising the steps of: drawing the cloth into a mold, the cloth including a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, and an elastic composition layer bonded to the fabric layer, the elastic composition layer including a film layer; and fixing the shape of the cloth to maintain the mold contours.
Claim 5
Dependent Claim
72 words
A process for molding cloth comprising the steps of: drawing the cloth into a mold, the cloth including a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, and an elastic composition layer bonded to the fabric layer, the elastic composition including a flexible foam layer and a film layer; and fixing the shape of the cloth to maintain the mold contours including heating the cloth.
Claim 6
Dependent Claim
72 words
A process for molding cloth comprising the steps of: drawing the cloth into a mold, the cloth including a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, and an elastic composition layer bonded to the fabric layer, the elastic composition including a flexible foam layer and a film layer; and fixing the shape of the cloth to maintain the mold contours including heating the cloth.
Claim 7
Dependent Claim
19 words
A process as in claim 3 further comprising the step of preheating the cloth prior to the drawing step.
Claim 8
Dependent Claim
62 words
A process for molding cloth comprising the steps of: drawing the cloth into a mold, the cloth including a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, and an elastic composition layer bonded to the fabric layer; and fixing the shape of the cloth to maintain the mold contours, including heating and cooling the cloth.
Claim 9
Dependent Claim
62 words
A process for molding cloth comprising the steps of: drawing the cloth into a mold, the cloth including a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, and an elastic composition layer bonded to the fabric layer; and fixing the shape of the cloth to maintain the mold contours, including heating and cooling the cloth.
Claim 10
Dependent Claim
74 words
A process for molding cloth comprising the steps of: preheating the cloth, the cloth including a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, and an elastic composition layer bonded to the fabric layer, the elastic composition layer including a film layer, drawing the cloth into the a mold; and fixing the shape of the cloth to maintain the mold contours, including heating and cooling the cloth.
Claim 11
Dependent Claim
74 words
A process for molding cloth comprising the steps of: preheating the cloth, the cloth including a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, and an elastic composition layer bonded to the fabric layer, the elastic composition layer including a film layer, drawing the cloth into the a mold; and fixing the shape of the cloth to maintain the mold contours, including heating and cooling the cloth.
Claim 12
Dependent Claim
64 words
A process for forming a cloth-covered item comprising the steps of: drawing the cloth in a mold, the cloth including a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, and an elastic composition layer bonded to the fabric layer; and fixing the shape of the cloth to maintain the mold contours, including pouring foam into the mold.
Claim 13
Dependent Claim
64 words
A process for forming a cloth-covered item comprising the steps of: drawing the cloth in a mold, the cloth including a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, and an elastic composition layer bonded to the fabric layer; and fixing the shape of the cloth to maintain the mold contours, including pouring foam into the mold.
Claim 14
Dependent Claim
32 words
A process as in claim 1, 5 or 6 wherein the elastic composition layer has a low elastic recovery after molding to facilitate the retention of the molded shape of the cloth.
Claim 15
Dependent Claim
38 words
The process as in claim 1, 2, 5 or 7 wherein the elastic composition layer includes a flexible foam layer formed from a polymer selected from the group consisting of urethane, vinyl chloride, polyvinyl chloride, polychloroprene and rubber.
Claim 16
Dependent Claim
33 words
A process as in claim 1, 5 or 7 wherein the elastic composition layer comprises: a flexible foam layer bonded to the fabric layer; and an elastic film bonded to the foam layer.
Claim 17
Dependent Claim
30 words
The process as in claim 10 wherein the flexible foam layer is formed from a polymer selected from the group consisting of urethane, vinyl chloride, polyvinyl chloride, polychloroprene and rubber.
Claim 18
Dependent Claim
19 words
A process as in claim 1, 5 or 6 wherein the elastic composition layer includes a thermoplastic film layer.
Claim 19
Dependent Claim
45 words
A process as in claim 12 wherein the film layer is formed from a polymer selected from the group consisting of vinyl chloride, polyvinyl chloride, polyurethane, synthetic rubber, natural rubber, a mixture of natural and synthetic rubber, neoprene basis composition, and acrylic acid basis composition.
Claim 20
Dependent Claim
29 words
A process as in claim 1, 5 or 7 further comprising the step of casting a flexible foam layer to an elastic film to form the elastic composition layer.
Claim 21
Dependent Claim
32 words
A process as in claim 1, 5 or 7 wherein the fabric layer is formed from the group consisting of polyamide, polyester, polyvinyl chloride, polyvinyl chloride copolymer, wool, cotton and combinations thereof.
Claim 22
Dependent Claim
42 words
A process as in claim 1, 5 or 7 wherein: the process further comprises the step of bonding a flexible foam layer to a thermoplastic film layer, and bonding the foam layer to the fabric layer in order to form the cloth.
Claim 23
Dependent Claim
79 words
A process for molding cloth comprising the steps of: bonding a flexible foam layer to a film layer, the foam layer and film layer forming an elastic composition layer; bonding the foam layer to a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, the cloth comprising the foam layer, film layer and fabric layer; drawing the cloth into a mold; and fixing the shape of the cloth to maintain the mold contours.
Claim 24
Dependent Claim
79 words
A process for molding cloth comprising the steps of: bonding a flexible foam layer to a film layer, the foam layer and film layer forming an elastic composition layer; bonding the foam layer to a fabric layer having a heat-fixable fiber, stitches of the fabric having never been thermally set, the cloth comprising the foam layer, film layer and fabric layer; drawing the cloth into a mold; and fixing the shape of the cloth to maintain the mold contours.
Claim 25
Dependent Claim
47 words
A process as in claim 2, 6 or 17 wherein the film layer formed from a polymer is selected from the group consisting of vinyl chloride, polyvinyl chloride, polyurethane, synthetic rubber, natural rubber, a mixture of natural and synthetic rubber, neoprene-basis composition, and acrylic acid basis composition.
Claim 26
Dependent Claim
37 words
A process as in claim 1, 5 or 17 wherein the drawing step includes the step of creating a vacuum between the cloth and the mold to thereby conform the cloth to the shape of the mold.
Claim 27
Dependent Claim
23 words
A process as in claim 1, 3, 5 or 17 wherein the fixing step comprises the step of pouring foam into the mold.
Claim 28
Dependent Claim
100 words
A process for forming a cloth-covered item comprising the steps of: bonding a flexible foam layer to a film layer, the foam layer and film layer forming an elastic composition layer; bonding the foam layer to a fabric layer having a heat-fixable fiber, the stitches of the fabric having never been thermally set, the cloth comprising the foam layer, the film layer and the fabric layer; preheating the cloth; drawing the cloth into a mold; and fixing the shape of the cloth to maintain the mold contours, including heating the cloth, cooling the cloth, and pouring foam into the mold.
Claim 29
Dependent Claim
100 words
A process for forming a cloth-covered item comprising the steps of: bonding a flexible foam layer to a film layer, the foam layer and film layer forming an elastic composition layer; bonding the foam layer to a fabric layer having a heat-fixable fiber, the stitches of the fabric having never been thermally set, the cloth comprising the foam layer, the film layer and the fabric layer; preheating the cloth; drawing the cloth into a mold; and fixing the shape of the cloth to maintain the mold contours, including heating the cloth, cooling the cloth, and pouring foam into the mold.
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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) | 1984-01-27 | 1984-07-28 | 1985-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-27 | 1988-07-28 | 1989-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-27 | 1992-07-28 | 1993-01-27 | $7700.00 | Window Closed / Lapsed |