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:
Jun. 30, 2015
Filed:
Feb. 13, 2012
Felix Mauchle, Abtwil, CH;
Mario Vasella, Trubbach, CH;
Felix Mauchle, Abtwil, CH;
Mario Vasella, Trubbach, CH;
GEMA SWITZERLAND GMBH, St. Gallen, CH;
Abstract
An oscillator () for providing an oscillating voltage for a powder spray coating device () is specified. With the aim of improving operational safety, the oscillator () as claimed in the invention has a first signal generator () for generating an intermediate circuit voltage (), a second signal generator () for generating a modulation signal () and a modulation signal isolating element (), connected to the second signal generator (), while a first voltage monitoring device () is also provided, designed for continuously measuring the oscillator voltage (), comparing it with at least one specified or specifiable oscillator voltage reference value and, if a first comparison criterion is satisfied, outputting a modulation isolating signal () to the modulation signal isolating element ().