US4769278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient multi layered member incorporating skin layer, foam layer cushion layer and core, and method of manufacture thereof
Assignee: Kasai Kogyo Co Ltd
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Filing: 1987-06-18
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Granted: 1988-09-06
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Expires: 2007-06-18
Abstract
Abstract In this resilient multi layered member, there are provided as laminated together: a surface skin layer, formed of PVC resin powder made into a gel, on the outside side of the resilient multi layered member; a foam material layer, formed from foamed PVC resin powder, the outer side of which is adhered to the inner side of the surface skin layer; a cushion material layer, the outer side of which is adhered to the inner side of the foam material layer; and a substantially stiff core material layer, the outer side of which is adhered to the inner side of the cushion material layer, on the inside side of the resilient multi layered member. There may be further included an adhesive layer by means of which the outer side of the cushion material layer is adhered to the inner side of the foam material layer. The cushion material layer may be formed from urethane foam, or from non woven fabric, which may be a felt material, and may have a density greater than about 200 grams per square meter. This density may more particularly be between about 260 grams per square meter and about 300 grams per square meter. Alternatively, the cushion material layer may be formed from compressed urethane material, which may be compressed by a factor of from about 50% to about 80%, and may have a density of between about 0.05 grams per cubic centimeter and about 0.10 grams per cubic centimeter.
Inventors
- 👤 Tomohisa Kamimura
- 👤 Noriyoshi Suzuki
- 👤 Takashi Imaizumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:20
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/04; B29C44/06; B32; B32B; B32B5/00; B32B5/22; B32B5/32; B29C44/10; B32B3/00; B32B3/26; B32B5/02; B32B5/024; B32B5/18; B32B5/24; B32B5/245; B32B7/00; B32B7/04; B32B7/12; B29K; B29K2027/00; B29K2027/06; B29L; B29L2031/00; B29L2031/30; B29L2031/3005; B32B38/00; B32B2038/0052; B32B2038/0084; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0221; B32B2266/0235; B32B2266/0278; B32B2305/00; B32B2305/02; B32B2305/022; B32B2307/00; B32B2307/50; B32B2307/51; B32B2327/00; B32B2327/06; B32B2605/00; B32B2605/003; B32B37/00; B32B37/12; B60; B60R; B60R13/00; B60R13/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24628; Y10T428/249921; Y10T428/249953; Y10T428/249981; Y10T428/249982; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T442/00; Y10T442/50; Y10T442/59; Y10T442/60; Y10T442/647
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
96 words
A resilient multi layered member, comprising: a surface skin layer, formed of PVC resin powder made into a gel, on its outside side; a foam material layer, formed from foamed PVC resin powder, the outer side of which is adhered to the inner side of said surface skin layer; a cushion material layer, the outer side of which is adhered to the inner side of said foam material layer; and a substantially stiff core material layer on its inside side, the outer side of which is adhered to the inner side of said cushion material layer.
Claim 2
Dependent Claim
96 words
A resilient multi layered member, comprising: a surface skin layer, formed of PVC resin powder made into a gel, on its outside side; a foam material layer, formed from foamed PVC resin powder, the outer side of which is adhered to the inner side of said surface skin layer; a cushion material layer, the outer side of which is adhered to the inner side of said foam material layer; and a substantially stiff core material layer on its inside side, the outer side of which is adhered to the inner side of said cushion material layer.
Claim 3
Dependent Claim
37 words
A resilient multi layered member according to claim 1, further comprising an adhesive layer by means of which the outer side of said cushion material layer is adhered to the inner side of said foam material layer.
Claim 4
Dependent Claim
22 words
A resilient multi layered member according to claim 1 or claim 2, wherein said cushion material layer is formed from urethane foam.
Claim 5
Dependent Claim
23 words
A resilient multi layered member according to claim 1 or claim 2, wherein said cushion material layer is formed from non woven fabric.
Claim 6
Dependent Claim
20 words
A resilient multi layered member according to claim 4, wherein said cushion material layer is formed from a felt material.
Claim 7
Dependent Claim
25 words
A resilient multi layered member according to claim 4, wherein said cushion material layer has a density greater than about 200 grams per square meter.
Claim 8
Dependent Claim
31 words
A resilient multi layered member according to claim 4, wherein said cushion material layer has a density between about 260 grams per square meter and about 300 grams per square meter.
Claim 9
Dependent Claim
23 words
A resilient multi layered member according to claim 1 or claim 2, wherein said cushion material layer is formed from compressed urethane material.
Claim 10
Dependent Claim
25 words
A resilient multi layered member according to claim 8, wherein said urethane material is compressed by a factor of from about 50% to about 80%.
Claim 11
Dependent Claim
32 words
A resilient multi layered member according to claim 8, wherein said cushion material layer has a density of between about 0.05 grams per cubic centimeter and about 0.10 grams per cubic centimeter.
Claim 12
Independent Claim
138 words
A method for manufacturing a resilient multi layered member, comprising the steps of: laying a surface skin layer, formed of PVC resin powder made into a gel, into an outer mold portion; adhering a foam material layer, formed from foamed PVC resin powder, to the inner side of said surface skin layer, as they lie in said outer mold portion; laying a substantially stiff core material layer on an inner mold portion; adhering a cushion material layer to the inner side of said core material layer, as they lie in said inner mold portion; and approaching together said outer mold portion bearing said surface skin layer and said foam material layer and said inner mold portion bearing said cushion material layer and said core material layer, and adhering together said cushion material layer and said foam material layer.
Claim 13
Independent Claim
138 words
A method for manufacturing a resilient multi layered member, comprising the steps of: laying a surface skin layer, formed of PVC resin powder made into a gel, into an outer mold portion; adhering a foam material layer, formed from foamed PVC resin powder, to the inner side of said surface skin layer, as they lie in said outer mold portion; laying a substantially stiff core material layer on an inner mold portion; adhering a cushion material layer to the inner side of said core material layer, as they lie in said inner mold portion; and approaching together said outer mold portion bearing said surface skin layer and said foam material layer and said inner mold portion bearing said cushion material layer and said core material layer, and adhering together said cushion material layer and said foam material layer.
Claim 14
Dependent Claim
29 words
A method for manufacturing a resilient multi layered member according to claim 11, wherein said cushion material layer is adhered to said foam material layer by an adhesive layer.
Claim 15
Dependent Claim
26 words
A method for manufacturing a resilient multi layered member according to claim 11 or claim 12, wherein said cushion material layer is formed from urethane foam.
Claim 16
Dependent Claim
27 words
A method for manufacturing a resilient multi layered member according to claim 11 or claim 12, wherein said cushion material layer is formed from non woven fabric.
Claim 17
Dependent Claim
24 words
A method for manufacturing a resilient multi layered member according to claim 14, wherein said cushion material layer is formed from a felt material.
Claim 18
Dependent Claim
29 words
A method for manufacturing a resilient multi layered member according to claim 14, wherein said cushion material layer has a density greater than about 200 grams per square meter.
Claim 19
Dependent Claim
35 words
A method for manufacturing a resilient multi layered member according to claim 14, wherein said cushion material layer has a density between about 260 grams per square meter and about 300 grams per square meter.
Claim 20
Dependent Claim
27 words
A method for manufacturing a resilient multi layered member according to claim 11 or claim 12, wherein said cushion material layer is formed from compressed urethane material.
Claim 21
Dependent Claim
29 words
A method for manufacturing a resilient multi layered member according to claim 18, wherein said urethane material is compressed by a factor of from about 50% to about 80%.
Claim 22
Dependent Claim
36 words
A method for manufacturing a resilient multi layered member according to claim 18, wherein said cushion material layer has a density of between about 0.05 grams per cubic centimeter and about 0.10 grams per cubic centimeter.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |