Patents by Inventor Dandy Tsai

Dandy Tsai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20050167466
    Abstract: A drive mechanism for an electric nailer comprises a power source, an electromagnetic coil, a control unit and moving member, which are disposed in a housing. The power source provides the electromagnetic coil and the control unit with DC power at predetermined voltage, so as to enable them to generate electromagnetic force. The control unit serves to control the output of the DC power source at a standard reference potential, so that the control unit is capable of turning on the electromagnetic coils at any time points.
    Type: Application
    Filed: April 4, 2005
    Publication date: August 4, 2005
    Inventor: Dandy Tsai
  • Publication number: 20050006113
    Abstract: A method for controlling operation time of an electric nailer, which comprises a power source, an electromagnetic coils, a control unit and moving member, all of which are disposed in a housing of an electric tool. Wherein the power source generates DC power for a predetermined voltage value that provides the power for the electromagnetic coils and the control unit for enabling them to generate electromagnetic forces and actuate respectively. The control unit serves to control the output of the DC power source at a standard reference potential or predetermined potential, by such arrangements, the control unit is capable of actuating the electromagnetic coils at any period of time.
    Type: Application
    Filed: July 9, 2003
    Publication date: January 13, 2005
    Inventor: Dandy Tsai