Hose coupling

Details Hose coupling Hose coupling

1987-06-25

1989-04-04

Arola, Dave W.

Pipe joints or couplings

Nonmetal to metal

Internal member

285330, F16L 3320

Patent

active

048179973

ABSTRACT:
A coupling for connecting a flexible hose to a fluid source, such as a gasoline fuel pump, comprised of a stem member on one end of the coupling for being inserted into the inlet end of the hose, an annular collar member for limiting the depth of insertion of the stem member into the hose and a male threaded member on the opposite end of the coupling for engaging complementary female threads to attach the hose and coupling to the fluid source. A recessed portion is defined between the collar member and male threaded member. The recessed portion has a plurality of relatively flat outer surfaces around the perimeter thereof, which are interconnected to define a square with rounded corners. A cylindrical sleeve member is concentrically disposed on the hose adjacent to the inlet end thereof so that the sleeve member slightly overlaps the inlet end. When the stem member of the coupling is inserted into the hose, the sleeve member is also concentrically disposed with respect to the collar member and the recessed portion. The sleeve member is preferably comprised of a soft, malleable metal material, which is deformable around the flat surfaces of the recessed portion when the sleeve member is crimped to the hose and coupling. The deformation of the sleeve member around the flat surfaces enhances the gripping action between the sleeve member and the coupling to fix the sleeve member against rotation with respect to the coupling. The hose can then be selectively connected to and disconnected from the fluid source by exerting torque on the sleeve member.

REFERENCES:
patent: 2314002 (1943-03-01), Lusher et al.
patent: 2329281 (1943-09-01), MacWilliams et al.
patent: 2374225 (1945-04-01), Melson
patent: 3345091 (1967-10-01), Nicol
patent: 3589752 (1971-06-01), Spencer
patent: 4603888 (1986-08-01), Goodall et al.

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