# US 8,783,300 B2 · Hose assembly and method of forming the same

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- Number: US 8,783,300 B2
- Document ID: US8783300B2
- Status: Granted
- Kind: B2
- Application number: 12/857,276
- Filed: 2010-08-16
- Published: 2011-02-17
- Granted: 2014-07-22
- Earliest claimed: 2009-08-14
- Assignees: Kongsberg Actuation Systems II, Inc.
- Applicants: Rich Hahn; Scott Kowalczyk; Norman S. Martucci
- Inventors: Rich Hahn; Scott Kowalczyk; Norman S. Martucci
- Web page: https://patentgrep.com/patent/US8783300B2

## CPC

- F16L 11/086: {two layers}
- B29D 23/001: {Pipes; Pipe joints (pleated hoses B29D23/18)}
- B29C 48/00: Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C49/04)
- B29C 48/09: Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C 48/13: Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
- B29C 48/15: incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C 48/151: Coating hollow articles
- B29C 48/21: the layers being joined at their surfaces
- B29K 2105/0827: {Braided fabrics}
- B29L 2023/22: {Tubes or pipes, i.e. rigid (bent tubes not for use as pipe couplings B29L2023/004)}
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00)
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

A hose assembly and a method for forming the hose assembly are disclosed. The hose assembly includes a core tube having an outer peripheral surface and is formed from a fluoropolymer. The hose assembly also includes a first reinforcing layer disposed about the core tube and defining a plurality of first apertures, and a second reinforcing layer disposed about the first reinforcing layer and having an exterior surface and defining a plurality of second apertures. The hose assembly further includes a polymeric binder, formed from a binder composition, on the outer peripheral surface of the core tube, in the first and second apertures, and about the exterior surface of the second reinforcing layer to bond the first and second reinforcing layers to the core tube.

## Claims

### Claim 1

A hose assembly comprising:
a core tube having an outer peripheral surface and comprising a fluoropolymer;
a first reinforcing layer disposed about said core tube and defining a plurality of first apertures and having an outer peripheral surface, said first reinforcing layer covering greater than about 90% of said outer peripheral surface of said core tube and said plurality of first apertures defines less than about 10% of said outer peripheral surface of said core tube;
a second reinforcing layer disposed about said first reinforcing layer and having an exterior surface and defining a plurality of second apertures, said second reinforcing layer covering of from about 60 to about 90% of said outer peripheral surface of said first reinforcing layer and said plurality of second apertures defines of from about 40 to about 10% of said outer peripheral surface of said first reinforcing layer; and
a polymeric binder on said outer peripheral surface of said core tube, in said first and second apertures, and about said exterior surface of said second reinforcing layer to bond said first and second reinforcing layers to said core tube to form said hose assembly.

### Claim 2 (depends on 1)

A hose assembly as set forth in claim 1 wherein said first reinforcing layer comprises a fiber.

### Claim 3 (depends on 2)

A hose assembly as set forth in claim 2 wherein said first reinforcing layer comprises said fiber in a braided configuration at a first braid angle.

### Claim 4 (depends on 3)

A hose assembly as set forth in claim 3 wherein said second reinforcing layer comprises a fiber.

### Claim 5 (depends on 4)

A hose assembly as set forth in claim 4 wherein said second reinforcing layer comprises said fiber in a braided configuration at a second braid angle that is less than the first braid angle.

### Claim 6 (depends on 1)

A hose assembly as set forth in claim 1 wherein said polymeric binder has a flexural modulus of from about 40 to about 170 kpsi in accordance with ASTM D 790.

### Claim 7 (depends on 1)

A hose assembly as set forth in claim 1 wherein said polymeric binder comprises a surfactant.

### Claim 8 (depends on 7)

A hose assembly as set forth in claim 7 wherein said surfactant is a non-ionic surfactant.

### Claim 9 (depends on 1)

A hose assembly as set forth in claim 1 wherein said first reinforcing layer comprises fiber braided at a first braid angle of from about 54 to about 60 degrees and said second reinforcing layer comprises fiber braided at a second braid angle of from about 45 to about 54.7 degrees.

### Claim 10 (depends on 1)

A hose assembly as set forth in claim 1 wherein said first reinforcing layer comprises fiberglass.

### Claim 11 (depends on 1)

A hose assembly as set forth in claim 1 wherein said second reinforcing layer comprises fiberglass.

### Claim 12 (depends on 1)

A hose assembly as set forth in claim 1 wherein said polymeric binder is formed from a binder composition having a viscosity of from about 30 to about 100 cps at 25° C. in accordance with ASTM D 4441.