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:
Mar. 08, 2005
Filed:
Jul. 09, 2003
Applicants:
Peter Reutlinger, Bretten, DE;
Andreas Piede, Illingen, DE;
Eberhard Palmer, Vaihingen, DE;
Inventors:
Assignee:
Ing. h.c.F. Porsche AG, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60D001/54 ;
U.S. Cl.
CPC ...
Abstract
A trailer coupling for motor vehicles able to be moved from a working position to a resting position and the reverse. To increase safety, a motion of the trailer coupling is allowed only if the velocity of the motor vehicle is <=5 Km/h, if the rear window or tailgate is open and if no trailer is fastened on the coupling. The motion is stopped if the torque of the drive motor exceeds a specifiable reference value.