Patents by Inventor M. Michael Tsai

M. Michael 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).

  • Belt tensioner, actuator and method of making
    Patent number: 5571061
    Abstract: A belt tensioner, an actuator therefor and methods of making the same are provided, the actuator of the tensioner having a rotatable shaft that is operatively interconnected to a spring and is provided with opposite ends one of which is operatively interconnected to a piston, the actuator having a casing provided with an internal recess therein that receives the other end of the shaft therein, the spring being adapted to rotate the shaft to extend the piston while the other end of the shaft rotates in the recess and bears against an end surface thereof, the other end of the shaft comprising a thrust washer assembled to the shaft to be carried thereby.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: November 5, 1996
    Assignee: Dayco Products, Inc.
    Inventors: M. Michael Tsai, David E. Fletcher, Joseph W. Zamm
  • Belt tensioner, actuator therefor and methods of making the same
    Patent number: 5499950
    Abstract: A belt tensioner, an actuator therefor and methods of making the same are provided, the actuator of the tensioner having a rotatable shaft that is operatively interconnected to a spring and is provided with opposite ends one of which is operatively interconnected to a piston, the actuator having a casing provided with an internal recess therein that receives the other end of the shaft therein, the spring being adapted to rotate the shaft to extend the piston while the other end of the shaft rotates in the recess and bears against an end surface thereof, the other end of the shaft comprising a thrust washer assembled to the shaft to be carried thereby.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: March 19, 1996
    Assignee: Dayco Products, Inc.
    Inventors: M. Michael Tsai, David E. Fletcher, Joseph W. Zamm
  • Belt tensioner, actuator therefor and methods of making the same
    Patent number: 5391118
    Abstract: A belt tensioner, an actuator therefor and methods of making the same are provided, the actuator of the tensioner having a rotatable shaft that is operatively interconnected to a spring and is provided with opposite ends one of which is operatively interconnected to a piston, the actuator having a casing provided with an internal recess therein that receives the other end of the shaft therein, the spring being adapted to rotate the shaft to extend the piston while the other end of the shaft rotates in the recess and bears against an end sumtrace thereof, the other end of the shaft comprising a thrust washer assembled to the shaft to be carried thereby.
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: February 21, 1995
    Assignee: Dayco Products, Inc.
    Inventors: M. Michael Tsai, David E. Fletcher, Joseph W. Zamm