Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1982-08-06
1984-06-19
Lowe, James B.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
249 93, 264277, 264278, 425116, 425124, B29H 910
Patent
active
044552742
ABSTRACT:
A method for producing an annular composite washer subassembly for use as a `soft` mount for the abrasive disc subassembly of a portable grinder includes first and second relatively movable mold portions with each mold portion having a pair of spring-biased pins therein. A first flat annular washer having a pair of holes is placed over the pins in the first mold portion and a second annular flat washer having a pair of holes is placed over the pins in the second mold portion. The pins of the first mold portion extend through the holes of the first washer to engage the second washer, and, conversely, the pins of the second mold portion extend through the holes of the second washer to engage the first washer. The first and second washers are positionally maintained in their respective mold portions by the pins of the opposite mold portion while a plasticized plastic material is injected into the mold and allowed to solidify between the so-positioned washers to form the composite washer assembly.
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Black & Decker Inc.
Lowe James B.
Sherer R. B.
Weinstein H.
Yocum Charles E.
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