Patents Assigned to Chung-Shan Inst. of Science Technology
  • Method of controlling driving power of double-solenoid electric percussion tools
    Patent number: 5760552
    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.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: June 2, 1998
    Assignees: Regitar Power Co., Ltd., Chung-Shan Inst. of Science Technology
    Inventors: Hsing-Theng Chen, Jou-Sheng Hu