Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – By fluid pressure actuated flexible diaphragm
Patent
1974-02-11
1977-03-01
Spicer, Jr., Robert L.
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
By fluid pressure actuated flexible diaphragm
425392, 425393, 425397, B29C 1702
Patent
active
040099822
ABSTRACT:
An attachment for a plastic pipe bending machine for automatically and precisely enlarging the end portions of formed plastic pipe for interconnection with other like plastic pipe of same outside diameter.
REFERENCES:
patent: 3290728 (1960-10-01), Pratt
patent: 3305158 (1963-10-01), Whiteford
patent: 3360826 (1968-01-01), Lorang
patent: 3425093 (1969-02-01), Ansette
patent: 3753635 (1973-08-01), Barnett
patent: 3843302 (1974-10-01), Petzetakis
patent: 3890079 (1975-06-01), Slater
Spicer, Jr. Robert L.
Universal Plastic Pipe Bending Corporation
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