Method of injection molding jointed linkage support

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United States of America Patent

PATENT NO 6610240
SERIAL NO

09992170

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Abstract

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A method of injection molding a part having two undercut regions using a two-part mold. A combined pin-in-a-sleeve extends into the cavity in each of the mold parts in order to form a bore in a part to be molded in that cavity. Each pin provides a portion shaped to form an undercut region in the bore. The pins abut each other. After an injection molded part is made, the mold opens a limited and discrete distance to allow the molded part to be released from the hold of the mold cavity. Then, the mold opens fully for the continuation of a multi-step operation to pull the pins out of the undercut regions.

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Patent Owner(s)

Patent OwnerAddress
C J ASSOCIATES LTDKOWLOON

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kwan, Chiu-Keung Kowloon, HK 10 191
Lee, James S W Long Island, NY 48 761

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