Patent Number: 6,309,576

Title: Method for setup and molding of formed articles from thin coated fabrics

Abstract: A method for setting up and molding or forming thin coated fabrics as in the production of diaphragms, where a hard die is installed on one plate of a pair of molding plates and a comparably sized or somewhat large die cavity is provided on the opposing plate, the plate set being then assembled in a molding press in conventional fashion. The die cavity is filled with an uncured elastomer and the press closed under enough heat and pressure to mold in place an exact elastomer mating die, unique to that plate and press setup. Once the elastomer is cured or vulcanized, the mold is opened and the excess flash is trimmed off. From this point on, the mold is used in the same manner as a traditional mold for molding formed articles such as diaphragms from thin coated fabrics, until the setup is disassembled or otherwise disturbed, after which the elastomer mating die is no longer useful.

Inventors: Schwab; Charles Gibson (Nashua, NH)

Assignee: Diacom Corporation

International Classification: B29C 33/38 (20060101); B29C 33/40 (20060101); B29C 35/02 (20060101); B29C 43/18 (20060101); B29C 43/00 (20060101); B29C 043/04 ()

Expiration Date: 10/30/2018