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:
May. 26, 2015
Filed:
Oct. 27, 2010
Craig A. Kollar, Sterling Heights, MI (US);
Xiujie Gao, Troy, MI (US);
Alan L. Browne, Grosse Pointe, MI (US);
Paul W. Alexander, Ypsilanti, MI (US);
Nancy L. Johnson, Northville, MI (US);
Shawn G. Quinn, Grand Blanc, MI (US);
Milind S. Gandhi, Shelby Township, MI (US);
Scott R. Webb, Macomb Township, MI (US);
Craig A. Kollar, Sterling Heights, MI (US);
Xiujie Gao, Troy, MI (US);
Alan L. Browne, Grosse Pointe, MI (US);
Paul W. Alexander, Ypsilanti, MI (US);
Nancy L. Johnson, Northville, MI (US);
Shawn G. Quinn, Grand Blanc, MI (US);
Milind S. Gandhi, Shelby Township, MI (US);
Scott R. Webb, Macomb Township, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A drain plug assembly that has particular application for sealing a drain hole in a high voltage battery compartment on a vehicle. The plug assembly includes a plug that inserted into the drain hole. The plug assembly further includes a return spring coupled to the plug and causing the plug to be biased into the drain hole. The plug assembly also includes at least one shape memory alloy device coupled to the plug and a support structure. The SMA device receives an electrical current that causes the device to contract and move the plug out of the drain hole against the bias of the return spring.