Reversing speed control switch

Details Reversing speed control switch Reversing speed control switch

1987-01-27

1988-03-29

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Sequential operations

200 11K, 200157, H01H 900, H01H 2100

Patent

active

047345470

ABSTRACT:
Disclosed is a reversing speed control switch. This control switch has a trigger arranged on a casing, a movable element which is moved upon operation of the trigger, a power switch for switching, on and off, a power source to be interlocked with the operation of the movable element, a reversing switch, connected to the switch, for switching the polarity of the power source, a reversing actuator whose shaft portion coupled to the reversing switch is located in the central portion the casing, and whose actuation portion is located outside the casing, and a speed control circuit for performing speed control, upon operation of the trigger. The movable element, the switch, and the speed control circuit are arranged around the shaft portion.

REFERENCES:
patent: 3260827 (1966-07-01), Frenzel
patent: 3543120 (1970-11-01), Robertson
patent: 3590194 (1971-06-01), Frenzel
patent: 3591740 (1971-07-01), Kolster
patent: 3632936 (1972-01-01), Piber
patent: 3755640 (1973-08-01), Kaman et al.
patent: 4097704 (1978-06-01), Piber
patent: 4100383 (1978-07-01), Piber
patent: 4231310 (1980-11-01), Muramatsu
patent: 4523115 (1985-06-01), Cuneo
patent: 4587384 (1986-05-01), Yacobi
patent: 4590344 (1986-05-01), Kikta et al.

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