Resin molded articles

Details Resin molded articles Resin molded articles

2007-12-04

2007-12-04

Huson, Monica A (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

C264S319000

Reexamination Certificate

active

10758116

ABSTRACT:
A disk-shape resin molded article such as a gear comprises a rim, a boss, a web having a disk configuration for connecting the rim and the boss, and gear teeth formed on the rim. The molded article is produced by an injection-compression molding process which comprises injecting a molten resin into a cavity of a metal mold, and pressing a web site and at least one site selected from the group consisting of a boss site and a rim site in a thickness direction. The cavity may have a capacity larger than the solidified products by contraction amount of the injected molten resin.

REFERENCES:
patent: 1737455 (1929-11-01), Frederick
patent: 1824825 (1931-09-01), Mains
patent: 2000769 (1935-05-01), Mansur
patent: 3846522 (1974-11-01), Goldman
patent: 07-205231 (1995-08-01), None
patent: 07-329103 (1995-12-01), None
patent: 2001-108066 (2001-04-01), None
JP Office Action of Application 2001-236360 dated May 18, 2006.

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