Hose connection employing relatively slidable parts

Claim 1

In an assembly to secure a hose end portion onto a tubular fitting, the hose end portion received relatively leftwardly onto the fitting which projects rightwardly, the combination with said fitting and hose end portion comprising a. an axially extending tubular nipple initially closely received rightwardly onto the hose end portion, and spaced from the hose end, said nipple being circumferentially continuous from end to end the nipple having an annular, smooth, axially tapering, outer clamp surface oriented to taper relatively leftwardly toward the end of the hose on the fitting, the nipple pushed relatively leftwardly along the hose end portion to also extend about the fitting, and b. a clamp ring initially receivable relatively leftwardly onto the fitting to face co-axially toward the nipple, the ring having an axially tapered bore flaring relatively rightwardly toward the nipple and displaced axially relatively rightwardly onto the nipple outer clamp surface in compressively clamping relation therewith, thereby to tightly and radially clamp the hose to the fitting, c. the length of the nipple outer clamp surface taper being substantially greater than the length of the ring bore taper, d. the ring having an annular flange projecting radially inwardly from said flaring bore to locally constrict the nipple, e. the nipple and hose end portion consisting of non-metallic molded plastic material.