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:
Jul. 02, 2013
Filed:
Jun. 08, 2011
Ulrich Koestler, Hebertshausen, DE;
Arne Koehler, Muenlch, DE;
Christoph Ulrich, Kratzenburg, DE;
Nadja Kaiser, Koblenz, DE;
Ulrich Koestler, Hebertshausen, DE;
Arne Koehler, Muenlch, DE;
Christoph Ulrich, Kratzenburg, DE;
Nadja Kaiser, Koblenz, DE;
Stabilus GmbH, Koblenz, DE;
Abstract
A spring device at a swivelable hatch of a motor vehicle, having a gas spring and a helper spring between the body of the motor vehicle and the hatch. The hatch is a front hood which can be raised into a pedestrian protection position prior to an impact of a pedestrian on the front hood, by an actuator activated by a sensor device. The helper spring is preloaded with a preloading force which, in case of a malfunction in which the gas spring has no gas pressure or a reduced gas pressure, is sufficient to adjust the front hood into the raised pedestrian protection position and to hold the front hood in the raised pedestrian protection position prior to the impact.