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:
Oct. 01, 2013
Filed:
May. 04, 2010
Martin Beichter, Stuttgart, DE;
Rudolf Stoppel, Schwaebisch Gmuend, DE;
Martin Beichter, Stuttgart, DE;
Rudolf Stoppel, Schwaebisch Gmuend, DE;
C & E Fein GmbH, , DE;
Abstract
A magnetic drilling stand is disclosed having a drilling unit (), having an electromagnet () for fixing the magnetic drilling stand () on a component (), having a voltage source which can be coupled to the electromagnet (), and having a controller () for monitoring the holding force of the electromagnet (), with the controller () having a device for monitoring the current level of the electromagnet (), in order to identify a fault state or an adequate magnetic holding force, with a signal for an adequate magnetic holding force being produced only if, within a test phase, the current level of the electromagnet is below a respectively predetermined threshold value at at least two predetermined times after the start of the test phase.