F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
189/15
F16L 11/12 (2006.01) A47L 9/24 (2006.01) B29C 47/02 (2006.01) B29C 47/20 (2006.01) F16L 11/127 (2006.01)
Patent
CA 1078754
ABSTRACT OF THE DISCLOSURE A polymeric flexible hose construction and method of making same are provided. The hose construction comprises a tubular wall defining a main longitudinally extending passage for conveying a fluid therethrough, the tubu- lar wall having a central longitudinal axis and having a plurality of con- volutions therein defined by a continuous longitudinally extending helical convolution, a helical reinforcing member disposed within the helical convolu- tion, and wall means adjoining the exterior of the tubular wall and defining a second longitudinally extending tubular passage for electrical conductor means, the second tubular passage being disposed substantially parallel to the central longitudinal axis, the wall means having a wall portion common with the tubular wall. The hose construction is simple, economical and highly flexible which includes a convoluted tubular wall which is reinforced by a helical reinforcing member. The method includes the steps of extruding a tubular wall defining a main longitudinally extending passage for conveying a fluid therethrough; extruding a wall of substantially C-shaped cross-sec- tional configuration and having open end edges; heat fusing the end edges against the tubular wall to define a second longitudinally extending passage for electrical conductor means, the second passage having a wall portion com- mon with the tubular wall; and cooling the tubular wall and C-shaped wall.
290181
Kleykamp Donald L.
Neroni Peter J.
LandOfFree
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