The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2001
Filed:
Mar. 22, 1999
Stephen L. Douglass, Newbury, OH (US);
Thermotion Corporation, Mentor, OH (US);
Abstract
A method of making an elastomeric diaphragm includes preparing a mixture of an elastomer containing dispersed fibers; heating the mixture so that the mixture flows under pressure; injecting the mixture into a mold having a cavity in the configuration of a diaphragm with a central axis of symmetry, so that the mixture flows into the mold along the central axis of symmetry of the diaphragm and, within the mold, parallel to the central axis of symmetry, until the mold is filled, with the fibers substantially oriented to lie within planes including the central axis of symmetry; at least partially curing the diaphragm; opening the mold; and removing the diaphragm from the mold. An elastomeric diaphragm has a central axis of symmetry and includes an elastomeric body with reinforcing fibers dispersed throughout the elastomeric body, the fibers being oriented to lie within planes including the central axis of symmetry.