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:
Feb. 03, 2015
Filed:
Feb. 28, 2013
GM Global Technology Operations Llc, Detroit, MI (US);
Jurgen Thyroff, Harxheim, DE;
Johannes Lauer, Darmstadt, DE;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A drainage device for placement on a housing includes an external plug component and a liquid expandable component. The external plug component has a first cap section and a second attachment section. The first cap section is positionable over an exterior side of a housing wall. The first attachment section is adapted to attach the drainage device to an opening in the housing wall. The liquid expandable component contacts the external plug component and is adapted to contact a structure within the housing when the drainage device is placed on the housing. Characteristically, the liquid expandable component has a higher volume when contacted with liquid than when dry. The liquid expandable component pushes the internal plug component away from the structure within the housing when the liquid expandable component transitions from a non-liquid-containing state to a liquid containing state thereby providing a path for liquid to escape.