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Injection Molding with Reduced or Negative Draft

IP.com Disclosure Number: IPCOM000044891D
Original Publication Date: 1983-Jan-01
Included in the Prior Art Database: 2005-Feb-06

Publishing Venue

IBM

Related People

Authors:
Hickey, TE [+details]

Abstract

Molded rectangular articles, such as the covers for office equipment, are typically formed with sides that are slightly angled rather than being perpendicular so that mold sections can be withdrawn without marring surface appearance. This article describes a technique for molding covers that allows perpendicular or even reverse angled sides to be molded.