Method and apparatus for bending thermoplastic pipes

Details Method and apparatus for bending thermoplastic pipes Method and apparatus for bending thermoplastic pipes

1975-02-06

1976-06-29

Larson, Lowell A.

Metal deforming

With temperature modification of tool or of specified...

Cooling

72369, B21D 716

Patent

active

039657159

ABSTRACT:
Method of bending thermoplastic pipes involving applying a source of heat to these portions of the pipe which are to be fashioned or shaped, applying a bending force to the pipe and cooling the bent pipe. The steps of the method are undertaken at one and the same location while the pipe is internally supported and has one end secured in a fixed position. Apparatus specifically designed to carry out such a method is also included.

REFERENCES:
patent: 998924 (1911-07-01), Powell
patent: 1260624 (1918-03-01), Bardeen
patent: 2286893 (1942-06-01), Boissou
patent: 2433055 (1947-12-01), Linden et al.
patent: 3088515 (1963-05-01), Fagan
patent: 3662995 (1972-05-01), Armstrong

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