Mold for forming a tape cassette reel

Details Mold for forming a tape cassette reel Mold for forming a tape cassette reel

1991-04-10

1992-11-03

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

Mold having movable core or movable pin

249 63, 249144, 249162, 264318, 425441, B29C 4500

Patent

active

051607522

ABSTRACT:
A tape cassette reel molding apparatus which includes upper and lower opposed molds for forming upper and lower flanges of the tape cassette reel and first and second hub molds provided between the upper and lower molds, the first and second hub molds each having an opposing face which has a semicylindrical cavity therein, at least one of the first and second hub molds being slidable in a direction parallel to the face of the upper mold and away from the other of the first and second hub molds so that when the upper and lower molds and the first and second hub molds are slid into position against each other, the respective cavities therein are all contiguous and a unitary tape cassette reel can be molded.

REFERENCES:
patent: 2400024 (1946-05-01), Roehrl
patent: 2574883 (1951-11-01), Medal
patent: 3064917 (1962-11-01), Roberts et al.
patent: 3362675 (1968-01-01), Ferdig
patent: 3695541 (1972-10-01), Lee
patent: 3843088 (1974-10-01), McLoughlin et al.
patent: 4209160 (1980-06-01), Vanotti

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