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:
Jun. 03, 1997
Filed:
Oct. 11, 1995
Erich Kohlert, Erlangen, DE;
Otto Wirxel, Essen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A dynamo-electric machine includes a stator having a ferromagnetic yoke with an internal recess and a rotor disposed in the internal recess defining a gap between the yoke and the rotor. An instrument holder to be introduced into the gap for inspecting the dynamo-electric machine includes a frame section and instruments secured to the frame section for inspecting the dynamo-electric machine. At least one wheel set has at least three wheels for moving the instrument holder in the gap. Each of the wheels is rotatable about a respective one of approximately mutually parallel axes. A connection device is to be connected to leads for connecting the instrument holder to a control and evaluation device. At least one magnet presses the wheels of the instrument holder against the yoke in the gap. A method for inspecting the dynamo-electric machine includes introducing an instrument holder, carrying means for inspecting the machine, into the gap; and pressing the instrument holder against the yoke with at least one magnet. A dynamo-electric machine has the instrument holder disposed in the gap.