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:
Aug. 14, 2012
Filed:
May. 14, 2007
Rainer Massmann, Bonn, DE;
Rolf Mintgen, Thuer, DE;
Kathrin Peifer, Mittelstrimmig, DE;
Moritz Starkmeth, Koblenz, DE;
Udo Wendland, Koblenz, DE;
Rainer Massmann, Bonn, DE;
Rolf Mintgen, Thuer, DE;
Kathrin Peifer, Mittelstrimmig, DE;
Moritz Starkmeth, Koblenz, DE;
Udo Wendland, Koblenz, DE;
Stabilus GmbH, Koblenz, DE;
Abstract
Apparatus for lifting a hatch which can pivot around a pivot axis, especially a hatch of a motor vehicle, by means of a piston-cylinder unit. The piston-cylinder unit has a closed cylinder filled with a pressurized fluid, the interior of the cylinderbeing divided by a piston into a first working chamber and a second working chamber. A piston rod passes through the second working chamber and is guided to the outside through a seal at the end of the cylinder and then hinged to the hatch, whereas the other end of the cylinder is hinged to a stationary component. A through-opening leading from the first working chamber to the second working chamber, is provided in the piston. The through-opening can be opened by an electrically actuated valve.