Switch mechanism for reversible grinder

Details Switch mechanism for reversible grinder Switch mechanism for reversible grinder

2006-09-26

2006-09-26

Enad, Elvin (Department: 2832)

Electricity: circuit makers and breakers

Interlocking

Between plural switches

C200S332200

Reexamination Certificate

active

07112751

ABSTRACT:
A switch mechanism for use with reversible handheld power tools comprises a pair of switches that co-operate using abutment to restrict displacement of each switch according to the position of the other switch. In a tool having a dynamic brake and a series-wound motor, one of the switches has a false neutral position wherein a continuous current path is maintained between the tool motor and the dynamic brake when the second switch is moved from REVERSE or FORWARD to the neutral position.

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