Heating assembly for heating an area of a thermoplastic pipe

Details Heating assembly for heating an area of a thermoplastic pipe Heating assembly for heating an area of a thermoplastic pipe

1982-06-30

1984-06-19

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With heating unit structure

1563805, 1562742, 1563797, 219535, 219541, 219544, 264 27, 26427211, 338291, 285 21, H05B 302

Patent

active

044554826

ABSTRACT:
Device of thermoplastic material for making a perforation in an underlying element made of a plastics material compatible with the first-mentioned plastics material.
It is composed of a plate (1) of relatively slight thickness, in one face (2) of which a spiral groove (3) is formed, at the center of which the plate is provided with an opening (1'), the said spiral groove being intended to receive an electric heating wire (19) of which one end is intended to be attached to a first projection (7) carried by the plate, on the side of the face in which the said groove is formed, while its other end is intended to be attached to a second projection (10) similar to the first and situated a certain distance from the latter.
Application to the making of branch pipes.

REFERENCES:
patent: 2182319 (1939-12-01), Owen
patent: 3987276 (1976-10-01), Vogelsanger et al.
patent: 4117311 (1978-09-01), Sturm

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