Break-away concentric hose coupling

Details Break-away concentric hose coupling Break-away concentric hose coupling

1993-10-25

1994-11-22

Schwadron, Martin P.

Fluid handling

Systems

Flow path with serial valves and/or closures

13761405, 137 681, F16L 3728

Patent

active

053659732

ABSTRACT:
A break away hose coupling for use in conjunction with a vapor recovery nozzle and for application within a fuel line, that prevents untimely decoupling, that only decouples upon the exertion of a pre-determined amount of tension, while preventing unnecessary leakage of fuel and vapors, while being fully reconnectable. The coupling includes a pair of fittings, for connecting to the fuel line, a sleeve for housing the fittings, and each fitting incorporating a check valve to provide for closure of the fluid flow passage and closure of the vapor flow passage when decoupling occurs, a fluid chamber providing for flow of fluid and a vapor return passage, internal of the fluid flow passage, allowing vapor recovery in a concentric line. The device is pressure compensated to eliminate the effects of line shock.

REFERENCES:
patent: 4763683 (1988-08-01), Carmack
patent: 4827977 (1989-05-01), Fink, Jr.
patent: 5014743 (1991-05-01), Makishima
patent: 5135029 (1992-08-01), Anderson et al.
patent: 5141014 (1992-08-01), Poli et al.
patent: 5209262 (1993-05-01), Carow et al.

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