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:
Aug. 23, 1983
Filed:
Sep. 01, 1981
Stanley Rodowsky, Jr, Baltimore, MD (US);
R Kent Nicholson, Baltimore, MD (US);
Black & Decker Inc., Newark, DE (US);
Abstract
A turbine-driven sander includes a switching system having a double-flap valve adjacent a passageway intermediate the turbine and a source of vacuum. One flap valve is a toggle which is actuated to open or close a bypass aperture, and which is connected to close and open, respectively, the other flap valve, which is mounted in the passageway. When the toggle opens the bypass aperture the turbine stops; conversely, when the toggle closes the bypass aperture, the turbine becomes activated and remains activated until the toggle opens the bypass aperture or the source of vacuum is removed or no longer produces a vacuum. When activated, the turbine vibrates a platen through a direct drive system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile