Patents by Inventor Thomas J. Sheerer

Thomas J. Sheerer 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: 4802781
    Abstract: The disclosure relates to a method of making a print head and the print head for a dot matrix printer, wherein there is provided a print wire actuator housing, a plurality of print wire actuators disposed in the housing, the actuators being arranged in the housing at points therein defined by (a) locating in a plane N parallel spaced lines, where N is an odd positive integer, (b) locating a point on the (N+1)/2 line from an extreme one of the lines, (c) defining points on a first arc of a circle having a center of curvature in the direction of the point and passing through the odd ones of the N lines at angles of (360 degrees/N).times.A with the (N+1)/2 line, where A is an integer from 0 to N and (d) defining points on a second arc of a circle having a center of curvature in the direction of the point and on the opposite side of the point as the first arc and passing through the even ones of the N lines at angles of (360 degrees/N).times.A with the (N+1)/2 line, where A is an integer from 0 to N.
    Type: Grant
    Filed: August 27, 1987
    Date of Patent: February 7, 1989
    Assignee: Texas Instruments Incorporated
    Inventor: Thomas J. Sheerer