Abstract: A hose rotation restrainer which attaches to the inner product hose of a coaxial vapor recovery hose assembly along with the inlet end of a suction tube in the vapor passageway between the inner product hose and the outer hose to prevent rotation of the product hose in order to maintain the end of the suction tube at a low point in the catenary of the hose assembly for removing liquid accumulations.

Abstract: A coaxial vapor recovery hose assembly comprising an inner hose, an outer hose, and structure for holding said hoses in concentric relationship; wherein the inner hose is substantially reinforced to be relatively incompressible as well as being capable of bearing tensile stress applied to the assembly and having an outside diameter; wherein the outer hose is corrugated and has an inside diameter larger than the outside diameter to define a vapor passageway therebetween.

Abstract: A branched hose construction contains a rigid insert having at least three legs. There is a plurality of hoses, the number of hoses being equal to the number of legs of the insert. Each hose has one end fitted over a leg of the insert. A securing means secures the hose to the leg. A molded saddle encapsulates the rigid insert and the junction of the hoses.

Abstract: A hose coupling crimper and method of crimping in which a pair of die plate halves are hingedly mounted on a base plate for swinging movement toward and away from a closed position with the crimping segments surrounding an opening in the base plate in which a hose and sleeve coupling is positioned. The die plate halves have radial slots for radially movable crimping segments and also restraining ring halves contained in the die plate halves for retaining the segments in the slots and determining the axial movement of the pressure ring and the crimp diameter by the thickness of the restraining ring halves. Hose and sleeve couplings of a different diameter may be crimped by using restraining ring halves of different thicknesses and/or replacing the crimping segments with segments having different diameters.

Abstract: An apparatus for the manufacture of a hose structure incorporating an embedded ground conductor comprising shortening a loosely braided bundle of fine conductor wire in the axial direction by compressing the bundle between two pairs of friction rollers rotating at different speeds. The wires are spread in a direction transversely of the bundle axis and flattened to form a ribbon type conductor that is laid on an uncured extruded tube, along the tube axis, and covered over with a textile wrapping and an elastomeric extrusion. Open steam curing of the structure results in a hose showing no appearance of an embedded conductor wire.

Abstract: A method for the manufacture of a hose structure incorporating an embedded ground conductor comprising shortening a loosely braided bundle of fine conductor wire in the axial direction by compressing the bundle between two pairs of friction rollers rotating at different speeds. The wires are spread in a direction transversely of the bundle axis and flattened to form a ribbon type conductor that is laid on an uncured extruded tube, along the tube axis, and covered over with a textile wrapping and an elastomeric extrusion. Open steam curing of the structure results in a hose showing no appearance of an embedded conductor wire.

Abstract: Dual concentric fuel and vapor recovery hoses are disclosed wherein an inner substantially kink-proof reinforced pressure hose carries fuel while an outer larger diameter extruded cover hose provides a vapor recovery path between the two hoses. The dual concentric hoses terminate into an end fitting that provides for separate rotatability of the hoses while also providing direct fuel feed through the fitting and a parallel vapor recovery path.