Patent US4957792A successfully refreshed from Google Patents.
US4957792A
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US
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Self-molding hose and a continuous vulcanization method
Assignee: Toyo Tire Corp
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Filing: 1988-11-08
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Granted: 1990-09-18
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Expires: 2008-11-08
Abstract
Abstract A self-molding part in a self-molding hose formed by vulcanizing an elastomer applied as a topping layer to one surface of a heat-shrinkable woven fabric is used as a hose molding part. With the use of this self-molding part, a self-molding hose is formed without using any external pressure devices such as molding using restricting fabric and a mold, etc. Further disclosed is a continuous vulcanization method in which a continuously formed hose is heated from the inside surface of a hose, and a continuous vulcanization method in which a continuously formed hose is heated from the outside surface of a hose.
Inventors
- 👤 Yokohori Shizuo
- 👤 Miyamoto Kenzo
- 👤 Fukushima Koji
- 👤 Tsujimoto Masami
- 👤 Onda Kenji
- 👤 Sato Kan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:11
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/112; B; B29; B29C; B29C35/00; B29C35/02; B29C35/04; B29C35/06; B29C53/00; B29C53/56; B29C53/58; B29C53/78; B29C53/785; B29C53/80; B29C53/84; B29C53/845; B29C35/049; B29K; B29K2021/00; B29L; B29L2023/00; B29L2023/005; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1328; Y10T428/1352; Y10T428/1362; Y10T428/1366; Y10T428/1386; Y10T428/24; Y10T428/24942; Y10T428/31504; Y10T428/31678; Y10T428/31707; Y10T428/3171; Y10T428/31826; Y10T428/3183; Y10T442/00; Y10T442/30; Y10T442/3854; Y10T442/3911
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
105 words
A self-molding hose of the type which may have any of various shapes and comprise any of various elastomers and reinforcing fabrics, said self-molding hose charcterized in that said self-molding hose is made from a self-molding part comprising: a heat shrinkable woven fabric; a first vulcanized elastomer topping layer provided on top surface of said heat shrinkable woven fabric; a second vulcanized elastomer topping layer provided on an underside surface of said fabric, said second vulcanized elastomer topping layer being thinner than said first vulcanized elastomer topping layer; and an unvulcanized elastomer topping layer provided on the underside of said second vulcanized elastomer topping layer.
Claim 2
Dependent Claim
105 words
A self-molding hose of the type which may have any of various shapes and comprise any of various elastomers and reinforcing fabrics, said self-molding hose charcterized in that said self-molding hose is made from a self-molding part comprising: a heat shrinkable woven fabric; a first vulcanized elastomer topping layer provided on top surface of said heat shrinkable woven fabric; a second vulcanized elastomer topping layer provided on an underside surface of said fabric, said second vulcanized elastomer topping layer being thinner than said first vulcanized elastomer topping layer; and an unvulcanized elastomer topping layer provided on the underside of said second vulcanized elastomer topping layer.
Claim 3
Dependent Claim
81 words
A self-molding hose according to claim 1, further characterized in that the self-molding part is used in both an inner surface and an outer surface layer of said hose such that the self-molding part used in the inner surface layer is provided so that the vulcanized surface is on the inside and the self-molding part in the outer surface layer is provided so that the vulcanized surface is on the outside, and said hose is vulcanized and molded in this state.
Claim 4
Dependent Claim
67 words
A self-molding hose according to claim 1, further characterized in that the self-molding part is utilized as an outer surface layer and inner surface layer of said hose with the unvulcanized topping layers on the undersides of the respective self-molding parts joined to each other and molded and vulcanized in a thin form so that said hose can be wound into a coil in a flat form.
Claim 5
Dependent Claim
25 words
A self-molding hose according to claim 2 or 3, further charcterized in that a steel spiral reinforcing wire is provided between said unvulcanized topping layers.
Claim 6
Dependent Claim
38 words
A self-molding hose according to claim 4, wherein said spiral reinforcing wire between said self-molding parts is a spiral reinforcing stranded wire which is circular or oval in cross-section and consists of a multiple number of steel wires.
Claim 7
Dependent Claim
63 words
A self-molding hose according to claim 2 or 3, further characterized in that said self-molding hose is expandable and contractible and both inner and outer surfaces of the self-molding parts formed on the inner and outer surfaces of the hose are formed in an accordion-like configuration, and ring-form reinforcing wires are installed in either peak portions or valley portions of said accordion-like configuration.
Claim 8
Dependent Claim
64 words
A self-molding hose according to claim 2 or 3, further characterized in that said self-molding hose is expandible and contractible and both inner and outer surfaces of the self-molding parts formed on the inner and outer surfaces of the hose are formed in an accordion-like configuration, and ring-form reinforcing wires are installed in both the peak portions and valley portions of said accordion-like configuration.
Claim 9
Dependent Claim
63 words
A self-molding hose according to claim 1, which is formed with projections and indentations and wherein said projections and indentations are achieved by spiral twisting and fixing of a thin hose with flat inner and outer surfaces which has a steel spiral reinforcing wire embedded in an unvulcanized elastomer between said self-molding parts formed on the inner and outer surfaces of said hose.
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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) | 1993-09-17 | 1994-03-19 | 1994-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-17 | 1998-03-19 | 1998-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-17 | 2002-03-19 | 2002-09-18 | $7700.00 | Window Closed / Lapsed |