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:
Aug. 18, 2020
Filed:
Jun. 22, 2017
Trafag Ag, Bubikon, CH;
Remo Halbheer, Hinwil, CH;
Dieter Zeisel, Forch, CH;
Trafag AG, Bubikon, CH;
Abstract
To improve the reliability of gas space monitoring of a gas space () of an electrical system () filled with a harmful gas, the invention provides a multi-path valve device () for connecting a density monitor () to a system to be monitored for gas density, comprising a first gas connection () for connecting the valve device () to the system, a second gas connection () for connection to the density monitor (), a third gas connection () for connection of a testing device () for testing the function of the density monitor (), and switching device for selectively connecting the second gas connection () to the first gas connection () or the third gas connection ().