Patents by Inventor James B. Daugherty

James B. Daugherty 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).

  • Keyboard with edge vent
    Patent number: 4415780
    Abstract: An electrical switch assembly of the type comprising a pair of printed circuits separated by an apertured spacer wherein passages are provided to vent gas from the region of each individual switch and the edge of the assembly.
    Type: Grant
    Filed: May 28, 1981
    Date of Patent: November 15, 1983
    Assignee: Rogers Corporation
    Inventors: James B. Daugherty, Frederick A. Balash
  • Membrane keyboard and method of formation thereof
    Patent number: 4382165
    Abstract: A membrane keyboard and method of formation thereof is presented in which the spacing and insulation between fixed and movable circuit layers is achieved by a dielectric material screened or otherwise applied to one of the circuit layers in a predetermined pattern. The dielectric pattern has openings to permit electrical contact between layers, and the dielectric pattern includes a discontinuous pattern of dielectric material on at least one of the contact elements to maintain separation between the contacts while still permitting actuation of the device.
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: May 3, 1983
    Assignee: Rogers Corporation
    Inventors: Frederick A. Balash, James B. Daugherty