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:
Jan. 16, 2018
Filed:
Jul. 23, 2014
Pfeiffer Vacuum Gmbh, Asslar, DE;
Mirko Mekota, Ehringshausen, DE;
Jan Hofmann, Gruenberg, DE;
Uwe Leib, Weilburg, DE;
Michael Schill, Asslar-Bechlingen, DE;
Bernhard Koch, Barig-Selbenhausen, DE;
Pfeiffer Vacuum GmbH, Asslar, DE;
Abstract
A vacuum pump includes a pump inlet, a pump outlet, a rotor rotatable about an axis of rotation, at least one process gas pump stage for conveying a process gas present at the pump inlet from the pump inlet to the pump outlet, a motor space, and a drive motor which is arranged in the motor space, is configured for rotationally driving the rotor and which has a motor stator, wherein at least one gas path is provided for the process gas from the pump inlet to the pump outlet which leads through the motor space and which leads at least sectionally along the motor stator or through the motor stator.