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. 16, 1983
Filed:
Jan. 13, 1982
Ernest R Scott, Mayfield Heights, OH (US);
Raymond J Strnad, Avon, OH (US);
The Scott & Fetzer Company, Westlake, OH (US);
Abstract
An electrical switch mechanism for energizing and varying the speed of a vacuum cleaner motor is responsive to the particular interchangeable cleaning attachment mounted on the housing of the vacuum cleaner. Fixed and movable electrical contacts of the switch mechanism are enclosed within and protected by the housing. A spring-biased linkage element connected to the movable contact passes through a wall of the housing and engages with one end of a multiposition cranklike linkage element pivotably fixed on that face of the housing supporting a cleaning attachment. Each attachment includes a switch-activating lug engageable with the other end of the cranklike element to move the movable contacts, via the linkage elements, from a normal open circuit position to one or the other of two closed circuit motor energizing positions.