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:
Jun. 06, 2006
Filed:
Feb. 12, 2003
Thomas J. Chapaton, Sterling Heights, MI (US);
Reuben Sarkar, Novi, MI (US);
Marie-christine G. Jones, Bingham Farms, MI (US);
Brent D. Calcut, Allen Park, MI (US);
Thomas J. Chapaton, Sterling Heights, MI (US);
Reuben Sarkar, Novi, MI (US);
Marie-Christine G. Jones, Bingham Farms, MI (US);
Brent D. Calcut, Allen Park, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A rubber composition contains an antifoam compound that leaches out of the rubber composition when placed in contact with a functional fluid. The antifoam compound is delivered into a functional fluid such as an automatic transmission fluid or an engine oil by contacting the functional fluid with the rubber composition. In addition to the antifoam compound, the rubber composition contains one or more elastomers, which may be selected from a wide variety of natural or synthetic rubbers. In a preferred embodiment, the elastomer comprises a high temperature elastomer such as acrylic elastomer and ethylene acrylic elastomer.