Patents by Inventor Timothy C. Barry

Timothy C. Barry 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).

  • Trackball device with improved ball suspension and adjustable resolution
    Patent number: 5410332
    Abstract: A trackball device for controlling a cursor on a display screen employs two rotatable shafts and a single nonrotatable support member in contract with the ball to convert rolling motion of the ball to X and Y positioning information. The nonrotatable support member has a number of spaced bearing surfaces and may be removed from and replaced in the trackball housing to present a different bearing surface to the ball, thereby prolonging the life of the device. The device may be provided with removable apertured phase slit members which can be replaced with phase slit members having different apertures therein, to modify the operating resolution of the device.
    Type: Grant
    Filed: October 2, 1991
    Date of Patent: April 25, 1995
    Assignee: Microspeed, Inc.
    Inventors: Timothy C. Barry, John K. Martinelli, Charles E. Ader
  • Hand operated computer display control
    Patent number: D313589
    Type: Grant
    Filed: July 24, 1987
    Date of Patent: January 8, 1991
    Assignee: Microspeed, Inc.
    Inventors: John K. Martinelli, Timothy C. Barry
  • Trackball for computer system monitor
    Patent number: D328458
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: August 4, 1992
    Assignee: Microspeed Inc.
    Inventor: Timothy C. Barry
  • Track ball for computer system cursor control
    Patent number: D335658
    Type: Grant
    Filed: October 1, 1991
    Date of Patent: May 18, 1993
    Assignee: Microspeed Incorporated
    Inventor: Timothy C. Barry
  • Computer keyboard
    Patent number: D361761
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: August 29, 1995
    Assignee: Microspeed, Incorporated
    Inventors: Timothy C. Barry, Charles E. Ader