Patents by Inventor Pat Gallarelli

Pat Gallarelli 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).

  • Patent number: 5038142
    Abstract: A touch sensing direct input data display device is described. The data display screen is directly and solely supported within a housing by stiff springs having essentially uniaxial freedom of motion. Strain gauge sensors are applied directly to the springs and are connected in a full Wheatstone bridge sensing circuit. The outputs of the sensors are fed to a calculating and processing device for calculaating the X, Y and Z coordinate information relative to the point on the face of the display which has been pushed or touched. The Z component is of total force and the X any Y components give the two dimensional location for the application of the force measured in the Z axis. The stiff springs allow very little deflection to occur under normal touch imposed fores on the display screen. They permit essentially uniaxial motion only in the Z axis.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: August 6, 1991
    Assignee: International Business Machines Corporation
    Inventors: Dale R. Flower, Pat Gallarelli, Kevin P. Goffinet, Anthony W. Miles, Charles A. Rudisill, Kevin H. Vorhees