US5106445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a shoe
Assignee: Individual
•
Filing: 1990-06-26
•
Granted: 1992-04-21
•
Expires: 2010-06-26
Abstract
Abstract A light, comfortable, lined shoe made of soft synthetic resin that employs another more durable hot-melt bond synthetic resin in the critical heel and foot entry opening regions to prevent shape distortion over the long term is provided. An extremely simple method of manufacture allows the shoe to be made inexpensively in quantity.
Inventors
- 👤 Tatsuo Fukuoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:24
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/02; B29D35/04; A; A43; A43B; A43B3/00; A43B3/0036; A43B3/0078; A43B3/0084; B29D35/06; B29D35/061; B29D35/062; B29C; B29C70/00; B29C70/68; B29C70/78
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
173 words
A method of manufacturing a shoe, comprising the steps of: providing a mold center piece and a mold shaped to form a shell body of the shoe; mounting a liner in contact with at least a portion of the outer surface of said mold center piece; coating at least a portion of the outer surface of said liner with a hot-melt bond material; placing the combination of said mold center piece, said liner and said hot-melt bond material into said mold such that a space is formed between said mold and the combination of said mold center piece, said liner and said hot-melt bond material; filling said space with a heated molten synthetic resin material such that heat from said heated molten synthetic resin material causes said hot-melt bond material to melt; and cooling said synthetic resin material and said hot-melt bond material such that said synthetic resin material forms said shell body, and said hot-melt bond material bonds to said shell body and said liner and acts to stiffen said shell body.
Claim 2
Independent Claim
173 words
A method of manufacturing a shoe, comprising the steps of: providing a mold center piece and a mold shaped to form a shell body of the shoe; mounting a liner in contact with at least a portion of the outer surface of said mold center piece; coating at least a portion of the outer surface of said liner with a hot-melt bond material; placing the combination of said mold center piece, said liner and said hot-melt bond material into said mold such that a space is formed between said mold and the combination of said mold center piece, said liner and said hot-melt bond material; filling said space with a heated molten synthetic resin material such that heat from said heated molten synthetic resin material causes said hot-melt bond material to melt; and cooling said synthetic resin material and said hot-melt bond material such that said synthetic resin material forms said shell body, and said hot-melt bond material bonds to said shell body and said liner and acts to stiffen said shell body.
Claim 3
Dependent Claim
15 words
A method as recited in claim 1, wherein said liner is about 1-2.5 millimeters thick.
Claim 4
Dependent Claim
20 words
A method as recited in claim 1, further comprising the step of attaching a shell vamp to said shell body.
Claim 5
Dependent Claim
27 words
A method as recited in claim 1, wherein said hot-melt bond material is coated on said liner so as to have a thickness of about 0.1-1.0 millimeters.
Claim 6
Dependent Claim
16 words
A method as recited in claim 1, wherein said hot-melt bond material comprises a synthetic resin.
Claim 7
Dependent Claim
16 words
A method as recited in claim 5, wherein said synthetic resin comprises ethyl acetate vinyl copolymer.
Claim 8
Dependent Claim
39 words
A method as recited in claim 1, wherein said hot-melt bond material is coated onto said liner by first applying the hot-melt bond material to a separate sheet of material and then applying said separate sheet to said liner.
Claim 9
Dependent Claim
41 words
A method as recited in claim 1, wherein said hot-melt bond material is coated onto said liner by first processing the hot-melt bond material into a sheet formed of said hot-melt bond material and then attaching said sheet to said liner.
Claim 10
Dependent Claim
46 words
A method as recited in claim 1, wherein prior to mounting said liner in contact with said mold center piece, said liner is sewn into a shape which is complementary to the inner contour of said shell body and then mounted against said mold center piece.
Claim 11
Dependent Claim
24 words
A method as recited in claim 1, wherein said liner comprises a pliable urethane sheet having cloth attached on at least one side thereof.
References Cited (Backward Citations)
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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) | 1995-04-21 | 1995-10-21 | 1996-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-21 | 1999-10-21 | 2000-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-21 | 2003-10-21 | 2004-04-21 | $7700.00 | Window Closed / Lapsed |