Plastic article or earthenware shaping or treating: apparatus – Hand manipulable shaping couple
Patent
1975-08-25
1977-05-24
Spicer, Jr., Robert L.
Plastic article or earthenware shaping or treating: apparatus
Hand manipulable shaping couple
425392, 72117, B29C 1700
Patent
active
040252710
ABSTRACT:
Polybutylene tubing is flared by a method and apparatus wherein the tubing is clamped at a position spaced from the end to be flared, and the projecting end portion is progressively engaged by a rotating flaring member having a working face of special segmental configuration such that as it advances into the tubing, an undulating circulatory pattern is developed in the tubing material accompanied by expansion thereof into the desired flare.
REFERENCES:
patent: 2707511 (1955-05-01), Franck
patent: 2737225 (1956-03-01), Jasinski
patent: 3262298 (1966-07-01), Samuels et al.
patent: 3482282 (1969-12-01), Glasschroeder
patent: 3585687 (1971-06-01), Bjalme
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