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:
Jul. 07, 1992
Filed:
Oct. 26, 1989
Robert E Lykes, Troy, OH (US);
James L King, Troy, OH (US);
A. O. Smith Corporation, Milwaukee, WI (US);
Abstract
A rotary motor includes bearing frames fixedly secured with a main round frame. The stator unit is secured directly to the round frame. The bearing frames are shallow cup-shaped metal members having an outer cylindrical flange extending as a continuous member about the circumference of a flat end wall structure. The flange is specially constructed to have a maximum diameter slightly greater than the internal diameter of the round frame, and is pressed into the round frame with the frame located on a precise radial plane through the round frame. A rotary bearing is secured within the end frame for rotatably supporting a rotor unit. The bearing frame is preferably a stamped steel member with the flange having a plurality of small radial projections. The bearing frame is pressed into the round frame using a suitable hydraulic press. The end edge of the round frame is formed as a reference for locating of the bearing frame in the round frame. The pressed frame is welded to the main frame at the projections by resistance welding.