Tool with contactless switch

Details Tool with contactless switch Tool with contactless switch

2006-12-05

2010-06-08

Luu, Thanh X (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S221000, C307S117000, C307S326000

Reexamination Certificate

active

07732747

ABSTRACT:
An electric tool has a handle, and an element for varying tool functions located in the handle and including a photoelectric cell incorporated onto the handle in such a way that if the photoelectric cell is completely or partly covered, a tool function is achieved on a specification in accordance with a predetermined sequence.

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