Control mechanism of revolving speed of an electric tool

Details Control mechanism of revolving speed of an electric tool Control mechanism of revolving speed of an electric tool

1995-02-09

1996-08-27

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 47, 310 50, 173216, 173217, H02K 714, H02K 706, H02K 710, E21B 300

Patent

active

055504167

ABSTRACT:
A control mechanism of revolving speed of an electric tool comprises a speed changing mechanism and a speed selecting device. The speed changing mechanism is composed of an action ring, a locating ring and two slide rods. The control of revolving speed of the electric tool is brought about easily and precisely by means of the speed changing mechanism in conjunction with the speed selecting device which is composed of a seat, a locating frame fastened to the main body of the electric tool, and a push button.

REFERENCES:
patent: 4493223 (1985-01-01), Kishi et al.
patent: 4617837 (1986-10-01), Kataoka et al.
patent: 4641551 (1987-02-01), Pascaloff
patent: 4772765 (1988-09-01), Markle et al.
patent: 4791833 (1988-12-01), Sakai et al.
patent: 4892013 (1990-01-01), Satoh
patent: 5019023 (1991-05-01), Kurosawa
patent: 5339908 (1994-08-01), Yokota et al.

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