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:
Apr. 04, 2023
Filed:
Apr. 13, 2018
Comet Ag, Flamatt, CH;
Thierry Altenhoven, Zollikofen, CH;
Walter Bigler, Heitenried, CH;
Timothy Albert Weber, Bern, CH;
Mark Mildner, Gurbrü, CH;
COMET AG, Flamatt, CH;
Abstract
A variable vacuum capacitor is described in which oil inside the main bellows () is pumped through the bellows and through the oil circuit () of a heat exchanger by a pump (). Water passes through coolant channels () of the heat exchanger, from inlet () to outlet ('). The extendable capacitor drive shaft () is hollow and serves as a conduit, conveying the oil to the bottom of the (bellows), thereby ensuring a full circulation of the oil right through the bellows and then through the heat exchanger. Pump drive means () may be a gerotor hydraulic motor, coupled to a gerotor oil pump () via magnetic coupling (). Pumping heat transfer fluid (oil) through the bellows allows the capacitor to operate at significantly higher currents and/or lower temperatures, and significantly extends the life of the device.