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US 4,294,636 AGranted
Method and apparatus for making wire reinforced hose
AssigneeDayco Corporation
InventorFrank A. Vitellaro
Life of this patent
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AssigneeDayco Corporation
InventorFrank A. Vitellaro
Estimating the term…
A method and apparatus for continuously forming a reinforced, flexible duct or hose. The apparatus comprises an extruder for forming an elongated, flat strip of a polymeric material, a strip shaping means for shaping the flat strip to define a profiled strip, means for helically winding the profiled strip with adjoining turns having portions in overlapping relation, means for disposing a reinforcing wire in sandwiched relation between the overlapped strip portions, and means for bonding the overlapping portions. The method comprises the steps of extruding a continuous flat strip of a polymeric material, forming the flat strip to define a profiled strip, helically winding the profiled strip with overlapping adjoining turns, disposing a reinforcing wire in sanwiched relation between the overlapping portions, and bonding together the overlapping portions.
A method for producing a reinforced flexible polymeric hose which comprises the steps of extruding a continuous flat strip of polymeric material, forming said flat strip to define a profiled strip having a flat side portion and a convoluted portion by continuously passing said flat strip between two profiled rollers to thereby define the desired strip profile with the convoluted side portion, and thereafter helically winding said profiled strip with adjoining turns in overlapping relation, disposing a reinforcing wire in said convoluted side portion in sandwiched relation between the overlapping portions during said helical winding step, and bonding together the overlapping portions.
A flexible hose forming apparatus comprising:
Dependencies are inferred from the claim text.