Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Patent
1994-09-29
1996-05-28
Heitbrink, Jill L.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
26432819, 425544, 425588, 425DIG228, B29C 4502
Patent
active
055208746
ABSTRACT:
A plunger (22), used in a standard mold, has a movable piston (23) and spring (24) that reduce the cull space when piston (23) is pressed downward into the cull mold compound.
REFERENCES:
patent: 2351582 (1944-06-01), Bohrer
patent: 3836303 (1974-09-01), Horley
patent: 4723899 (1988-02-01), Osada
patent: 4915607 (1990-04-01), Medders et al.
Chen C. S.
Chen Y. C.
Chou C. H.
Ko S. P.
Wang T. H.
Donaldson Richard L.
Heitbrink Jill L.
Hiller William E.
Stewart Alan K.
Texas Instruments Incorporated
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