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. 04, 1988
Filed:
Aug. 08, 1986
Applicant:
Inventors:
Theodor Lauhoff, Bergisch Gladbach, DE;
Joachim Barzantny, Kurten-Eichhof, DE;
Assignee:
Interatom GmbH, Bergisch Gladbach, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
417 50 ; 310 11 ;
Abstract
Electromagnetic screw channel pump having a helical delivery channel, including polyphase coils for generating a magnetic field travelling in circumferential direction of the delivery channel and a magnetic flux return structure, the polyphase coils being arranged in a cylindrical inner portion, and the magnetic flux return structure being arranged outside of the helical delivery channel.