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:
Nov. 09, 2010
Filed:
Aug. 06, 2007
Martin Eilers, Asslar, DE;
Andreas Rippl, Wetzlar, DE;
Christopher-mark Rippl, Wetzlar, DE;
Tobias Stoll, Angelburg-Goennern, DE;
Martin Eilers, Asslar, DE;
Andreas Rippl, Wetzlar, DE;
Christopher-Mark Rippl, Wetzlar, DE;
Tobias Stoll, Angelburg-Goennern, DE;
Pfeiffer Vacuum GmbH, Asslar, DE;
Abstract
An arrangement for supporting a shaft of a vacuum pump includes a first bearing for supporting the shaft at one of its end, a second bearing for supporting the shaft at another of its ends and formed as a rolling bearing, a holder for receiving the second bearing and including an oscillating base, a fixation member secured in the vacuum pump housing, metallic connection members for connecting the oscillating base with the fixation member and axial springs arranged between the oscillating base and the fixation member and providing for the axial stiffness of the holder which is greater than its radial stiffness thereof and greater than the axial stiffness of the first bearing.