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:
Dec. 13, 2011
Filed:
Sep. 18, 2008
Carsten Clauss, Esslingen, DE;
Ralf Forcht, Wendlingen, DE;
Thomas Lederer, Kernen, DE;
Christian Waldeck, Esslingen, DE;
Carsten Clauss, Esslingen, DE;
Ralf Forcht, Wendlingen, DE;
Thomas Lederer, Kernen, DE;
Christian Waldeck, Esslingen, DE;
Festo AG & Co. KG, Esslingen, DE;
Abstract
Proposed is a magnetic valve with manual override, through the actuating element of which a magnetic core that serves as a valve element or that is connected to a valve element can be shifted from an off position into an operating position without excitation of a magnetic coil system assigned to it. To detect the position of the magnetic core that is held in the operating position by the manual override there is provided a coil current monitoring device that monitors the rise of the coil current after the magnetic coil system has been switched on, which device has a detection device for detection of the absence of a drop in current as formed by movement of the magnetic core after being switched on and a signaling device for electrical signaling of a position of the magnetic core that is held in the operating position by the manual override if said drop in current is absent.