Hose construction

Details Hose construction Hose construction

1988-06-01

1990-03-06

Bryant, III, James E.

Pipes and tubular conduits

Flexible

Distinct layers

138125, 138109, F16L 916

Patent

active

049057367

ABSTRACT:
Hoses for transporting or otherwise handling refrigerant and oil fluids are disclosed which are comprised of an inner tube, an outer cover and a reinforcing layer interposed therebetween. The inner tube includes at least two walls, one being an inner resinous wall and the other being an outer rubbery wall having specified moduli at 100%. The outer cover is formed by a selected class of rubbers having a higher modulus at 100% than the outer wall of the inner tube. The resulting hose is securely interconnectable with metal fittings, highly impermeable to gaseous and oily fluids, sufficiently resistant to stress cracking and adequately flexible.

REFERENCES:
patent: 4510974 (1985-04-01), Natori et al.
patent: 4603712 (1986-08-01), Krause
patent: 4613532 (1986-09-01), Michel et al.
patent: 4633912 (1987-01-01), Pilkington et al.
patent: 4657285 (1987-04-01), Akiyoma et al.

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