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. 15, 1976
Filed:
Dec. 06, 1974
Applicant:
Inventors:
Milton J Johnson, Danville, KY (US);
Joseph F Schmitz, St. Paul, MN (US);
Assignee:
Whirlpool Corporation, Benton Harbor, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15340 ; 15413 ;
Abstract
A vacuum cleaner construction wherein the carriage wheels are driven by an electric motor. An improved air flow arrangement is associated with the drive motor for conducting relatively clean cooling air into the motor for heat transfer therefrom, and conducting the cooling air from the motor for delivery with air conducted from a suction inlet to a suction fan.