US4311547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making reinforced tubular articles
Assignee: HIFLEX FLUIDHANDLING GROUP Ltd
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Filing: 1980-06-27
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Granted: 1982-01-19
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Expires: 2000-06-27
Abstract
Abstract A reinforced tubular article such as a hose is manufactured by at least partially vulcanizing a rubber composition to form an inner tube and forming on the outer surface of said inner tube an assembly of reinforcing members which are united with the inner tube by a solidifiable liquid polymer material which when solidified bonds to both the reinforcing members and the outer surface of the tube.
Inventors
- 👤 Ian Biggs
- 👤 Ronald S. Goy
- 👤 Kenneth E. Whitehead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:14
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; B; B29; B29D; B29D23/00; B32; B32B; B32B25/00; B32B25/04; B32B25/08; C08J7/04; C08J7/043; B29C; B29C53/00; B29C53/56; B29C53/58; B29K; B29K2021/00; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/10; B29K2105/101; B29L; B29L2009/00; C08J2321/00
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
110 words
A method for the manufacture of a reinforced tubular article having an inner lining tube of vulcanised rubber comprising: forming an inner tube of vulcanisable rubber composition, applying to the outer surface of the inner tube an agent which will halogenate said surface, then passing said inner tube through a fluidised bed vulcaniser to effect vulcanisation of the inner tube and render said tube substantially self-supporting, and forming on the outer surface of said inner tube an assembly of reinforcing members which are united with the inner tube by solidifiable liquid polymer material which when solidified bonds to both the reinforcing members and the outer surface of the inner tube.
Claim 2
Independent Claim
110 words
A method for the manufacture of a reinforced tubular article having an inner lining tube of vulcanised rubber comprising: forming an inner tube of vulcanisable rubber composition, applying to the outer surface of the inner tube an agent which will halogenate said surface, then passing said inner tube through a fluidised bed vulcaniser to effect vulcanisation of the inner tube and render said tube substantially self-supporting, and forming on the outer surface of said inner tube an assembly of reinforcing members which are united with the inner tube by solidifiable liquid polymer material which when solidified bonds to both the reinforcing members and the outer surface of the inner tube.
Claim 3
Dependent Claim
27 words
A method according to claim 1 wherein a coating of solidifiable liquid polymer material is applied to the inner tube before the application of the reinforcing members.
Claim 4
Dependent Claim
30 words
A method according to claim 1 wherein the reinforcing members are applied under tension to cause penetration of the solidifiable liquid polymer material into any interstices between neighbouring reinforcing members.
Claim 5
Dependent Claim
21 words
A method according to claim 1 wherein the reinforcing members are embedded in and surrounded by the solidifiable liquid polymer material.
Claim 6
Dependent Claim
25 words
A method according to claim 4 wherein the reinforcing members are dipped in a solidifiable liquid polymer material before being applied around the inner tube.
Claim 7
Dependent Claim
21 words
A method according to claim 1 wherein a cover layer of polymeric material is formed around the assembly of reinforcing members.
Claim 8
Dependent Claim
23 words
A method according to claim 6 wherein the cover layer is applied whilst the solidifiable liquid polymer material is in a liquid condition.
Claim 9
Dependent Claim
38 words
A method according to claim 3 wherein the solidifiable liquid polymer material is allowed to solidify and embed the reinforcing members, and then treated with a solvent or solution to assist adhesion to a subsequently applied cover layer.
Claim 10
Dependent Claim
33 words
A method according to claim 3 wherein the solidifiable liquid polymer material is allowed to solidify and embed the reinforcing members, and then heated to assist adhesion to a subsequently applied cover layer.
Claim 11
Dependent Claim
16 words
The method according to claim 1, wherein the solidifiable liquid polymer material is a polyurethane plastisol.
Claim 12
Dependent Claim
15 words
The method according to claim 1, wherein the solidifiable liquid polymer material contains resin-forming ingredients.
Claim 13
Dependent Claim
17 words
A method according to claim 11 wherein the solidifiable liquid polymer material is a polyvinyl chloride plastisol.
Claim 14
Dependent Claim
35 words
A method according to claim 1 wherein the solidifiable liquid polymer material is formed around the inner tube before the inner tube has fully cooled to ambient temperature subsequent to said at least partial vulcanisation.
Claim 15
Dependent Claim
23 words
A method according to claim 13 wherein the surface of the inner tube is cooled before application of the solidifiable liquid polymer material.
Claim 16
Dependent Claim
22 words
A method according to claim 1 wherein heating means is provided at least to assist in solidifying the solidifiable liquid polymer system.
Claim 17
Dependent Claim
21 words
A method according to claim 1 wherein the inner tube is pressurised internally during formation of the assembly of reinforcing members.
Claim 18
Dependent Claim
16 words
A method according to claim 1 wherein the inner tube is pressurised internally during said vulcanisation.
Claim 19
Dependent Claim
62 words
A method according to claim 1 comprising forming on the outer surface of the inner tube a solidified coating of polymer material which bonds to the inner tube, and forming around said coating the assembly of reinforcing members which are united with the inner tube by solidifiable liquid polymer material which when solidified bonds to the reinforcing members and said solidified coating.
Claim 20
Independent Claim
118 words
A method for the continuous manufacture of a reinforced tubular article having an inner lining tube of vulcanised rubber and an outer cover of thermoplastics material comprising: extruding a vulcanisable rubber composition to form an inner tube, applying to the outer surface of the inner tube a treatment agent which will halogenate said surface, passing the surface treated inner tube through a fluidised bed vulcaniser to effect vulcanisation of the inner tube and render said tube substantially self-supporting, forming around the inner tube an assembly of reinforcing members and a solidifiable liquid polymer material which when solidified unites the reinforcing members with the inner tube, and forming by extrusion around said assembly a cover layer of thermoplastics material.
Claim 21
Independent Claim
118 words
A method for the continuous manufacture of a reinforced tubular article having an inner lining tube of vulcanised rubber and an outer cover of thermoplastics material comprising: extruding a vulcanisable rubber composition to form an inner tube, applying to the outer surface of the inner tube a treatment agent which will halogenate said surface, passing the surface treated inner tube through a fluidised bed vulcaniser to effect vulcanisation of the inner tube and render said tube substantially self-supporting, forming around the inner tube an assembly of reinforcing members and a solidifiable liquid polymer material which when solidified unites the reinforcing members with the inner tube, and forming by extrusion around said assembly a cover layer of thermoplastics material.
Claim 22
Independent Claim
145 words
A method for the continuous manufacture of a reinforced tubular article having an inner lining tube of vulcanised rubber and an outer cover of thermoplastics material comprising: extruding a vulcanisable rubber composition to form an inner tube, applying to the outer surface of the inner tube a treatment agent which will halogenate said surface, passing the surface treated inner tube through a fluidised bed vulcaniser to effect vulcanisation of the inner tube and render said tube substantially self-supporting, forming on the outer surface of the inner tube a solidified coating of polymer material which bonds to the inner tube, forming around said coating an assembly of reinforcing members which are united with the inner tube by solidifiable liquid polymer material which when solidified bonds to the reinforcing members and said solidified coating, and forming by extrusion around said assembly a cover layer of thermoplastics material.
Claim 23
Independent Claim
145 words
A method for the continuous manufacture of a reinforced tubular article having an inner lining tube of vulcanised rubber and an outer cover of thermoplastics material comprising: extruding a vulcanisable rubber composition to form an inner tube, applying to the outer surface of the inner tube a treatment agent which will halogenate said surface, passing the surface treated inner tube through a fluidised bed vulcaniser to effect vulcanisation of the inner tube and render said tube substantially self-supporting, forming on the outer surface of the inner tube a solidified coating of polymer material which bonds to the inner tube, forming around said coating an assembly of reinforcing members which are united with the inner tube by solidifiable liquid polymer material which when solidified bonds to the reinforcing members and said solidified coating, and forming by extrusion around said assembly a cover layer of thermoplastics material.
Claim 24
Dependent Claim
39 words
The method according to claim 20, wherein the solidifiable liquid polymer material is solidified by the application of heat, said heat also softening the material of the solidified coating to assist adhesion thereto of the solidifiable material when solidified.
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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) | 1985-01-18 | 1985-07-20 | 1986-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-18 | 1989-07-20 | 1990-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-18 | 1993-07-20 | 1994-01-19 | $7700.00 | Window Closed / Lapsed |