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. 29, 1994
Filed:
May. 04, 1992
Krishan K Puri, Richmond, CA;
Citywide Machine Wholesale, Inc., Vancouver, CA;
Abstract
A vacuum cleaner having a body with an inlet opening for dust laden air and an outlet. An impeller is located between the inlet and the outlet. A chamber within the body having at least one wall receives a perforate dust receptacle. The chamber is located up-stream of the impeller. An inlet passageway extends from the inlet opening into the chamber. This passageway is directed so that when a perforate dust receptacle is in position in the chamber, the inlet passage has an outlet directed at a wall of the dust receptacle. Dust laden air entering the receptacle is filtered to remove dust. The dust laden air, forced against the wall by the impeller, acts to keep the wall free of dust accumulation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile