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. 23, 1998
Filed:
Feb. 09, 1996
Craig Webster, Jesmond, GB;
Black & Decker Inc., Newark, DE (US);
Abstract
A clean fan debris collecting apparatus is disclosed in which the suction of debris is performed by an entrained stream of air (34). The apparatus comprises a motor (24) which drives an impeller (20) which generates at air steam which is directed down an air supply duct (6). The air stream is then directed into a collecting duct (4) through an air inlet (8) which is located adjacent to a collecting mouth (5) of the collecting duct. The air stream, upon entering the collecting duct (4) generates the entrained stream of air (34) which sucks debris into the collecting mouth (5) and transports it up the collecting duct (4) to a collecting bag (30). An air stream dispersing apparatus (26) is located adjacent to the air inlet (8) to disperse the air stream as it enters to collecting duct (4). This dispersion improves the efficiency with which the entrained stream of air can be generated. Alternatively the air inlet (8) can be formed to include the static air dispersing apparatus.