Speed selector switch

Details Speed selector switch Speed selector switch

1982-01-13

1983-08-16

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15339, A47L 928

Patent

active

043983162

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.

REFERENCES:
patent: 2072690 (1937-03-01), Smellie
patent: 3319282 (1967-05-01), MacFarland
patent: 3467980 (1969-09-01), Golloway
patent: 4329757 (1982-05-01), Ramstrom et al.
patent: 4336626 (1982-06-01), Hone et al.

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