Method of controlling driving power of double-solenoid electric

Details Method of controlling driving power of double-solenoid electric Method of controlling driving power of double-solenoid electric

1996-10-23

1998-06-02

Ro, Bentsu

Electricity: motive power systems

Reciprocating or oscillating motor

Plural, diverse or diversely controlled motor windings

310 14, 335256, H01F 718

Patent

active

057605521

ABSTRACT:
A method of controlling driving power of a double-solenoid electric percussion tool utilizing the change of energizing time of the first solenoid to control the location of a hammer when the first solenoid is switched to the second solenoid so as to increase the driving power of a percussion tool.

REFERENCES:
patent: 3552627 (1971-01-01), Moreno
patent: 3673475 (1972-06-01), Britton, Jr.
patent: 4494098 (1985-01-01), Haneda et al.
patent: 4550302 (1985-10-01), Watanabe et al.
patent: 5079459 (1992-01-01), Huston et al.
patent: 5300908 (1994-04-01), Stone et al.

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