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:
Jun. 12, 2012
Filed:
Feb. 26, 2007
Applicants:
Joachim Schäfer, Darmstadt, DE;
Volker Scheuch, Sailauf, DE;
Werner Schmidt, Alzenau-Hörstein, DE;
Martin Zilg, Aschaffenburg/Nikheim, DE;
Inventors:
Joachim Schäfer, Darmstadt, DE;
Volker Scheuch, Sailauf, DE;
Werner Schmidt, Alzenau-Hörstein, DE;
Martin Zilg, Aschaffenburg/Nikheim, DE;
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60R 21/34 (2006.01); B62D 25/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pneumatic actuator is provided for an active bonnet. The pneumatic actuator includes, but is not limited to a cylinder and a piston transferable from a rest position to an extended position and lockable in its rest position. The piston, in its rest position, is held pre-stressed by a spring element in the direction of the extended state.