LOW TEMPERATURE, HIGH PRESSURE RUBBER HOSE
First Claim
Patent Images
1. A hose for use at a service temperature range of between about −
- 57°
C. (−
70°
F.) and about +100°
C. (+212°
F.) and a service pressure range of between about 28.0 MPa (4000 psi) and up to about 56.0 MPa (8000 psi) comprising;
an inner tubular core comprising a layer of a first rubber compound having an elastic modulus of not greater than about 8.4 MPa (1200 psi);
at least a first pair of spiral wound reinforcement layers surrounding the core comprising a first reinforcement layer and a second reinforcement layer surrounding the first reinforcement layer; and
an outer jacket surrounding the second reinforcement layer comprising a layer of a second rubber compound having a durometer of not greater than about 75 Shore A.
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Accused Products
Abstract
Flexible reinforced rubber hose adapted for conveying fluids under low temperatures and high pressures. The hose includes a inner tube formed of an acrylonitrile butadiene rubber (NBR) or other low temperature rubber compound having an elastic modulus of not greater than about 8.4 MPa (1200 psi), and an outer jacket formed of a chloroprene rubber (CR) or other low temperature rubber compound having a durometer of not greater than about 75 Shore A.
33 Citations
18 Claims
-
1. A hose for use at a service temperature range of between about −
- 57°
C. (−
70°
F.) and about +100°
C. (+212°
F.) and a service pressure range of between about 28.0 MPa (4000 psi) and up to about 56.0 MPa (8000 psi) comprising;an inner tubular core comprising a layer of a first rubber compound having an elastic modulus of not greater than about 8.4 MPa (1200 psi); at least a first pair of spiral wound reinforcement layers surrounding the core comprising a first reinforcement layer and a second reinforcement layer surrounding the first reinforcement layer; and an outer jacket surrounding the second reinforcement layer comprising a layer of a second rubber compound having a durometer of not greater than about 75 Shore A. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- 57°
-
10. A method of conveying fluid or pressure at a service temperature of between about −
- 57°
C. (−
70°
F.) and about +100°
C. (+212°
F.) and a service pressure of between about 28.0 MPa (4000 psi) and about 56.0 MPa (8000 psi) comprising the steps of;(a) providing a length of a hose comprising; an inner tubular core comprising a layer of a first rubber compound having an elastic modulus of not greater than about 8.4 MPa (1200 psi); at least a first pair of spiral wound first reinforcement layer surrounding the core comprising a first reinforcement layer and a second reinforcement layer surrounding the first reinforcement layer; an outer jacket surrounding the second reinforcement layer comprising a layer of a second rubber compound having a durometer of not greater than about 75 Shore A; and (b) conveying fluid or pressure through the hose at a service temperature of between about −
57°
C. (−
70°
F.) and about +100°
C. (+212°
F.). - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
- 57°
Specification