Universal lifter foot assembly for removal of core block...

Plastic article or earthenware shaping or treating: apparatus – Shaping surface including means to release or remove product... – By means releasing article from interiorly placed shaping...

Reexamination Certificate

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Details

C425S556000, C425S577000

Reexamination Certificate

active

07140868

ABSTRACT:
An ejector assembly for use with a mold for molding plastic parts include a first stationary member, a second stationary member and an ejector plate moveable between the first and second stationary members. A core blade lifter is provided that includes a lifter foot assembly that is moveable with the ejector plate. The core blade lifter includes a lifter rod pivotally mounted to the lifter foot assembly and moveable laterally and longitudinally in response to movement of the ejector plate. A stationary helper pin is provided generally parallel to the lifter rod. The core blade lifter includes a helper carrier pivotally mounted to the lifter foot assembly and moveable along the helper pin.

REFERENCES:
patent: 3642417 (1972-02-01), Von Holdt
patent: 3811645 (1974-05-01), Feist
patent: 3905740 (1975-09-01), Lovejoy
patent: 4854849 (1989-08-01), Sudo
patent: 5137442 (1992-08-01), Starkey
patent: 5219594 (1993-06-01), Meyer et al.
patent: 5281127 (1994-01-01), Ramsey
patent: 5316467 (1994-05-01), Starkey
patent: 5551864 (1996-09-01), Boskovic
patent: 5814357 (1998-09-01), Boskovic
patent: 6039558 (2000-03-01), Park et al.
patent: 6443723 (2002-09-01), Buttigieg
patent: 6491512 (2002-12-01), Vandenberg
patent: 6491513 (2002-12-01), Schneider
patent: 6537053 (2003-03-01), Watkins
patent: 2002/0076466 (2002-06-01), Mowery et al.
patent: 2005/0042322 (2005-02-01), Takao
patent: 407032370 (1995-02-01), None
patent: 410095019 (1998-04-01), None
patent: 01/79898 (2001-03-01), None
patent: 01/96590 (2001-04-01), None
English Abstract of JP407032370A and JP410095019A.

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