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:
Jan. 14, 2014
Filed:
Dec. 15, 2010
Henryk Sowul, Oxford, MI (US);
Xiaoqing Zeng, Northville, MI (US);
Henryk Sowul, Oxford, MI (US);
Xiaoqing Zeng, Northville, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
The present invention provides a fluid displacing transmission filler having a blow molded, foam filled body. The body or shell of the filler is blow molded in a mold which shapes it to conform to internal surfaces and other features, such as gears and shafts, of a transmission. Then, the blow molded filler body is filled with closed cell foam. The resulting transmission filler is lightweight, achieves a maximum volume for an available space within a transmission and is essentially impervious to failure and filling with fluid because the closed cell foam does not significantly absorb transmission fluid.