Plastic article or earthenware shaping or treating: apparatus – With control means responsive to independently operated timer – For timing period mold is closed or period molding pressure...
Patent
1975-01-27
1977-02-15
Spicer, Jr., Robert L.
Plastic article or earthenware shaping or treating: apparatus
With control means responsive to independently operated timer
For timing period mold is closed or period molding pressure...
264257, 264322, 425398, 425412, 4254519, B29C 306
Patent
active
040080293
ABSTRACT:
A method and apparatus for molding thermosetting and thermoplastic materials, particularly components of brassiere cups, enabling precise molding with a high degree of flexibility and control in the molding conditions of temperature, pressure and molding time. Two modes of molding are disclosed; a first mode in which the material is first clamped to the mold prior to conforming the medial portion of the mold to the mold blank; and a second mode in which the material is accommodated in the mold blank followed by clamping of the margins of the material.
REFERENCES:
patent: 2796634 (1957-06-01), Chellis
patent: 3461504 (1969-07-01), Becker et al.
patent: 3799727 (1974-03-01), Howard
patent: 3880561 (1975-04-01), Ferro
patent: 3891377 (1975-06-01), Howard
Spicer, Jr. Robert L.
Warnaco Inc.
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