Injection-molded gear

Details Injection-molded gear Injection-molded gear

2008-04-29

2011-10-04

Joyce, William C (Department: 3656)

Machine element or mechanism

Gearing

Gear and rotary bodies

C074S434000, C074SDIG010

Reexamination Certificate

active

08028598

ABSTRACT:
A high-strength, high-precision injection-molded gear in which resin flow regulating projections that partially thicken a web are formed in a position on a side surface side of the web between pin point gates and a teeth section such as to project from the side surface of the web. The resin flow regulating projections are formed such that a center section thereof, the highest in height, is on a radial direction line extending from the pin point gates in the outward radial direction and the height gradually decreases away from the position on the radial direction line in a circumferential direction of the web.

REFERENCES:
patent: 4-238008 (1992-08-01), None
patent: 08-132542 (1996-05-01), None
patent: 2002-347081 (2002-12-01), None
patent: 2004-358665 (2004-12-01), None

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