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:
Apr. 09, 2013
Filed:
Oct. 20, 2008
Alan L. Browne, Grosse Pointe, MI (US);
Paul W. Alexander, Ypsilanti, MI (US);
Nancy L. Johnson, Northville, MI (US);
James H. Shoemaker, White Lake, MI (US);
Alan L. Browne, Grosse Pointe, MI (US);
Paul W. Alexander, Ypsilanti, MI (US);
Nancy L. Johnson, Northville, MI (US);
James H. Shoemaker, White Lake, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An active pressure relief valve adapted for selectively regulating a condition within an interior compartment generally includes a housing fluidly coupling the compartment to an external environment and defining an opening, an actuator including an active material element operable to effect movement of a flap relative to the opening, a load limit protector coupled to and configured to present a secondary output path for the element, when the flap is unable to move, and/or a latching mechanism coupled to, and configured to engage the flap, so as to retain the flap in a modified condition.