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:
Sep. 04, 2001
Filed:
Sep. 27, 2000
Bernhard Müller, Herrenberg, DE;
Bernhard Wiesgickl, Vilseck, DE;
Michael Schiffmann, Amberg, DE;
Other;
Abstract
The invention relates to a safety switch arrangement for switching the power supply of a tool on and off by means of at least two actuators. The actuators are connected to a code generator. The code generator can issue a numerical word divided into two partial words, the values of which can be influenced by a respective one of the at least two actuators. If the actuators are activated, the values for the partial words are changed continuously. As a result of the deactivation of an actuator, the assigned partial word assumes a fixed, predetermined value. In order to check the switching states of the actuators, the partial words are read synchronously into an evaluation unit. The power supply of the tool is switched “on” only when the at least two actuators are activated to the “on” state and the partial words correspond to the predetermined fixed value.