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:
May. 22, 1990
Filed:
Jul. 29, 1988
Klaus Domschat, Lorrach, DE;
Eltex-Elektrostatik-Gesellschaft mbH, Weil am Rhein, DE;
Abstract
A high voltage electrode device including a plurality of individual electrodes having end portions projecting beyond an insulating surface and arranged to form at least one group or electrically connected electrodes and apparatus for energizing and deenergizing each group of electrodes. The energizing and deenergizing apparatus includes a high voltage source associated with a respective group and having a control input for turning off the high voltage source wherein the high voltage source provides an output to the group via a current measuring device providing an output indicative of the current measured. A voltage measuring device is connected to the associated group and provides an output indicative of the voltage measured, and quotient forming unit responsive to the outputs of the current measuring device and the voltage measuring device forming a quotient thereof and providing an output when the quotient formed has a predetermined relation to a reference value. The control input is responsive to the output of the quotient forming unit for turning off the high voltage source of the associated group.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile