Apparatus and process of convoluting thermoplastic tubing withou

Details Apparatus and process of convoluting thermoplastic tubing withou Apparatus and process of convoluting thermoplastic tubing withou

1981-11-16

1984-01-24

Derrington, James H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Reshaping running or indefinite-length work

425336, 425369, B29C 1702

Patent

active

044276168

ABSTRACT:
Apparatus and method for convoluting TEFLON tubing without use of wires, rotating a mandrel which has a diameter smaller than that of the TEFLON, threading the mandrel at the other end, rotating and assemblying over a threaded portion a means in an opposite direction thereof, and supporting at each end means allowing the mandrel to pass axially therethrough and having a series of worm gears rotatingly mounted in diametrical opposite pairs.

REFERENCES:
patent: 2766806 (1956-10-01), Rothermel et al.
patent: 3021245 (1962-02-01), Roberts et al.
patent: 3635255 (1972-01-01), Kraner
patent: 4017244 (1977-03-01), Vellani
patent: 4365948 (1982-12-01), Chaplain

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