Apparatus for manufacturing a diaphragm blade

Details Apparatus for manufacturing a diaphragm blade Apparatus for manufacturing a diaphragm blade

1996-06-07

1998-03-24

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

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

With coupling between charger and mold

2643238, 359234, 354228, 354250, 354274, 354254, B29C 4518

Patent

active

057310165

ABSTRACT:
A diaphragm blade for a diaphragm-blade assembly having a plurality of diaphragm blades forming an opening of a diaphragm. The diaphragm blades cooperatively move to change the diameter of the opening of the diaphragm. Each diaphragm blade has a thin blade sheet and a pair of protruding engage members formed on the blade sheet. Each diaphragm blade is integrally formed with the protruding engage members by injection molding synthetic resin.

REFERENCES:
patent: 4009946 (1977-03-01), Geyer et al.
patent: 4956139 (1990-09-01), Koizumi et al.

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