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. 03, 2002
Filed:
May. 30, 2000
Applicant:
Inventors:
Andreas Gründl, München, DE;
Bernhard Hoffmann, Starnberg, DE;
Assignee:
Grundl und Hoffmann GmbH, Starnberg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 2/100 ; H02K 3/04 ;
U.S. Cl.
CPC ...
H02K 2/100 ; H02K 3/04 ;
Abstract
The invention relates to a travelling wave machine which includes a stator and a rotor, wherein at least one stator coil and/or one rotor coil is arranged in at least one groove of the stator or the rotor, respectively, and wherein the stator coil or the rotor coil, respectively, projects from the groove at both sides in a longitudinal direction under the formation of a coil head, characterized in that the cross section of the stator coil or of the rotor coil, respectively, in the area of the respective groove differs from the cross section of the stator coil or the rotor coil, respectively, in the area of the coil head.