Apparatus for manufacturing thin-walled plastic hoses

Details Apparatus for manufacturing thin-walled plastic hoses Apparatus for manufacturing thin-walled plastic hoses

1977-12-29

1979-12-25

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Longitudinally progressive helical winding means

156143, 156145, 156428, 156431, 156500, B31C 1300

Patent

active

041804295

ABSTRACT:
A method and apparatus for continuously manufacturing thin-walled flexible hoses having helical reinforcement members which are relatively strong in relation to the hose walls wherein an internal pressure is applied to the hose core to obviate the need for a manufacturing mandrel, and a plurality of turns of the reinforcement member are coiled onto a fixed tube through which the hose core passes and the successive comparatively unstressed turns of the reinforcement member are applied to the slightly expanding hose core at the tube exit by the application of an intermittent pressure in an axial direction against the respective last turn of the plurality of turns on the tube.

REFERENCES:
patent: 2570929 (1951-10-01), Fitch et al.
patent: 3289250 (1966-12-01), Zernay

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