05115538 is referenced by 150 patents and cites 21 patents.

A vacuum cleaner has a power brush which projects dirt particles directly into a specially formed and located vacuum nozzle in such a manner that low air consumption can be used. The vacuum nozzle has an inlet extending along the full axial length of the power brush. Inclined grooming brushes may be provided to eliminate wheel tracks. The front wall forwardly of the power brush may be modified to provide front edge cleaning. A cordless upright vacuum cleaner may advantageously be provided having a cleaning performance comparable with that of mains powered upright cleaners.

Title
Vacuum cleaners
Application Number
469176
Publication Number
5115538
Application Date
April 29, 1991
Publication Date
May 26, 1992
Inventor
William R Lessig III
Hunt Valley
MD, US
Rouse R Bailey Jr
New Park
PA, US
John R Cochran
Baltimore
MD, US
Agent
Edward D C Bartlett
Charles E Yocum
Dennis A Dearing
Assignee
Black & Decker
DE, US
IPC
A47L 9/04
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