Patents by Inventor Thomas J. Bradfish

Thomas J. Bradfish 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: 4817272
    Abstract: An electronic component lead or tab crimping apparatus adapted for use with a conveyor system in the assembly of printed circuit (PC) boards includes an upper assembly having an upper interchangeable plate and a lower actuator plate and further includes a pneumatically actuated lower assembly. The interchangeable plate includes a plurality of spaced apertures within each of which is disposed a lead/tab engaging, crimping element. The upper assembly is initially displaced upward by the pneumatically actuated lower assembly to a position in close proximity to and in alignment with the lower surface of a PC board such that each of the crimping elements is disposed in close proximity to a lead, or leads (or tabs), of an electronic component positioned on the PC board. The lower assembly then displaces the actuator plate upward by cam action such that the actuator plate simultaneously engages and pivotally displaces the crimping elements resulting in crimping of the electronic component leads or tabs.
    Type: Grant
    Filed: August 18, 1987
    Date of Patent: April 4, 1989
    Assignee: Zenith Electronics Corporation
    Inventors: Carl Campisi, Andrew Kaliszek, Elmer M. Klein, Richard G. Schmid, Thomas J. Bradfish