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:
Oct. 30, 2018
Filed:
Sep. 27, 2016
Michael Schwaiger, Berlin, DE;
Juergen Kreutzkaemper, Waibstadt-Daisbach, DE;
Arno Poetzsch, Berlin, DE;
Holger Schmidt, Klein-Machnow, DE;
Michael Schwaiger, Berlin, DE;
Juergen Kreutzkaemper, Waibstadt-Daisbach, DE;
Arno Poetzsch, Berlin, DE;
Holger Schmidt, Klein-Machnow, DE;
SKF Lubrication Systems Germany GmbH, Walldorf, DE;
Abstract
A screw pump for transporting a fluid, with a drive spindle having a drive spindle profile and with at least one running spindle having a running spindle profile, the running spindle engages with its running spindle profile at least partially in the drive spindle profile of the drive spindle, the drive spindle profile and/or the running spindle profile is formed as a rolled profile, and a method for producing a spindle for such a screw pump, and a method for producing a groove in such a spindle are disclosed.