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:
Feb. 22, 1994
Filed:
Jan. 08, 1993
Applicant:
Inventor:
James J Kopco, Mentor-on-the-Lake, OH (US);
Assignee:
Royal Appliance Mfg. Co., Cleveland, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15339 ; 15391 ;
Abstract
A vacuum cleaner assembly includes a motor and drive shaft extending therefrom adapted for driving an elastomeric belt which, in turn, is used to rotate a revolving brush supported in a cleaner housing. A composite belt drive member is affixed in axial alignment to an end of the motor shaft and has a relatively rigid member and electrically insulating annular oversheath. The sheath is tapered to provide a nest portion for retaining the belt on the drive member during shaft rotation. The sheath is a plastic material which provides the desired electrical insulation function.