ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,751, issued on Feb. 24, was assigned to Black & Decker Inc. (New Britain, Conn.).
"Dust extractor with flat back" was invented by Markus Rompel (Runkel, Germany), Ian S. Bell (Sunninghill, Great Britain) and Uwe Nemetz (Canton, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A dust extractor for a drill is provided, including a single air flow path, a shroud having an internal chamber for collecting dust in fluid communication with a first end of the single air flow path, a filter assembly located in the single air flow path, a vacuum source connected to a second end of the single air flow path, and an air flow control mechanism controlling a...