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:
Sep. 16, 2003
Filed:
Apr. 06, 2001
Heinrich Engländer, Linnich, DE;
Alexander Bosma, Köln, DE;
Hans-Rudolf Fischer, Erftstadt, DE;
Leybold Vakuum GmbH, Cologne, DE;
Abstract
A molecular vacuum pump ( ) includes a stator unit ( ) which has a stator blade package including one or more rows of stator blades ( ), and a rotor unit ( ) which has rotor blade package including one or more rows of rotor blades ( ). The rotor blades ( ) and the state blade ( ) intermesh with each other in the functionally assembly state. The rotor blades ) include slots ( ) whose arrangement, depth and width are selected such that the stator unit ( ) and the rotor unit ( ) may be screwed together or unscrewed from one another. Alternatively, the stator blades ( ) include slots ( ) whose arrangement, depth and width are selected such that the stator unit ( ) and the rotor unit ( ) may be screwed together or unscrewed from one another.