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:
Mar. 07, 1989
Filed:
Oct. 28, 1987
Applicant:
Inventor:
Eugene T Fleischhauer, Midlothian, VA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
1532 / ; 1532 / ;
Abstract
Canister type vacuum cleaners having a casing with convex sides which allow the vacuum cleaner to be pulled or otherwise displaced along a supporting surface irrespective of which side of the surface is facing downwardly and engaging that surface. A roller supported from a casing side wall at the base of the vacuum cleaner or one roller in an array which includes a roller supported from each casing side wall at the base end of the vacuum cleaner can be engaged with the supporting surface to increase the mobility of the vacuum cleaner. These rollers do not affect the insensitivity to orientation of the vacuum cleaner.