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:
Oct. 28, 2014
Filed:
Nov. 14, 2012
GM Global Technology Operations Llc, Detroit, MI (US);
Henryk Sowul, Oxford, MI (US);
Kristopher Villegas, Warren, MI (US);
GM Global Technology Operations, LLC, Detroit, MI (US);
Abstract
A sealing and drainage device for a motor vehicle transmission is located in a wall approximately near the bottom of the transmission housing and includes a ball and a plate that encloses the ball in a bore through the housing wall. The plate has an opening on which the ball sits under normal operating conditions. During unexpected flooding conditions, water flows through the opening into the bore. The ball floats on the water such that as the water rises in the bore, the ball rises as well to the top of the bore to seal the bore from the interior of the housing, preventing water from flowing into the housing.