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:
Apr. 21, 2009
Filed:
Sep. 06, 2005
Applicants:
Hermann Hoepken, Sprockhovel, DE;
Christoph Stratmann, Essen, DE;
Inventors:
Hermann Hoepken, Sprockhovel, DE;
Christoph Stratmann, Essen, DE;
Assignee:
K.A. Schmersal Holding KG, Wuppertal, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a position monitoring device for establishing the position of a first part with respect to a second part, having a transceiver at the first part for emitting an interrogation signal and for receiving a response signal that can be emitted in reaction to the interrogation signal by a transponder, wherein a screen that attenuates signals between the transponder and the transceiver is provided, two members of the group consisting of the transceiver, the screen and the transponder being movable relative to one another.