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. 21, 2012
Filed:
May. 21, 2004
Mirko Schindler, Velbert, DE;
Helmut Schumacher, Coesfeld, DE;
Mirko Schindler, Velbert, DE;
Helmut Schumacher, Coesfeld, DE;
Huf Hülsbeck & Fürst GmbH & Co. KG, Velbert, DE;
Abstract
The invention relates to an external door handle consisting of a support (), which is fixed to a door () and on which a handle () is mounted. In an unlocked position the handle acts on a lock and is inactive in the locked position of said lock. A capacitive sensor is provided to trigger the control of the lock, said sensor comprising an external electrode that is equipped with a sensor surface () and is located in the outer region of the door handle. To provide a wide range of configuration options for the location of the sensor surfaces, at least two additional internal electrodes are provided in the inner region of the external door handle, in addition to the sensor surface (), said electrodes having active surfaces in the form of a transmission surface () and an excitation surface (). An electric switching matrix (), which is connected in series to the field of the sensor surface () that is active in the outer region of the external door handle, is generated between the two internal electrodes.