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. 28, 2010
Filed:
Feb. 26, 2008
Helmut Simon, Argenbühl, DE;
Helmut Simon, Argenbühl, DE;
Diehl Ako Stiftung & Co. KG, Wangen, DE;
Abstract
An appliance with a hazardous device contains a first controller controlled by a first control element which, in turn, is controlled by a second controller by use of a first switching element. An electrically controllable protection device is provided and is controlled by a second control element, it is possible to deactivate the protection device. A storage capacitor is provided between the first and the second control element and supplies the second control element with energy for a control pulse and is charged by the first control element when the first controller is switched off and is discharged by the first switching element when the first controller is switched on. This circuit generates a safe control circuit. In the event of a possible hazardous state, either the first controller is no longer supplied with energy or the protection device cannot be deactivated, and so danger to a user is precluded.