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:
Feb. 11, 2025
Filed:
Dec. 19, 2023
Pfeiffer Vacuum Technology Ag, Asslar, DE;
Jonas Becker, Bischoffen, DE;
Jan Hofmann, Gruenberg, DE;
Sebastian Latta, Wetzlar, DE;
Heiko Schaefer, Solms-Niederbiel, DE;
Maik Schaefer, Weinbach, DE;
Wolfgang Soehngen, Waldsolms, DE;
Pfeiffer Vacuum Technology AG, Asslar, DE;
Abstract
A vacuum pump in accordance with the invention, in particular a scroll vacuum pump, comprises a first spiral element that has a first wall that extends spirally about a first axis, that extends in an axial direction from a first support, and that has a first free end face facing away from the first support, and a second spiral element that has a second wall that extends spirally about a second axis, that extends in the axial direction from a second support, and that has a second free end face facing away from the second support, wherein the first spiral element and the second spiral element are movable relative to one another and are arranged such that the first wall and the second wall sealingly engage into one another while forming pumping spaces, wherein the free end face of at least one of the walls has a recess, in particular a groove, which extends in a longitudinal direction of the wall and in which at least one seal is movably arranged, and wherein the recess is laterally bounded by at least one inner wall that extends at least sectionally, preferably continuously, obliquely to the axial direction and that is configured to cooperate with a side wall of the seal extending at least sectionally, preferably continuously, obliquely to the axial direction.