Patents by Inventor Ivan K. Pummell

Ivan K. Pummell 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: 4696096
    Abstract: Methods and apparatus for reworking printed circuit boards carrying surface mounted components by removing faulty or improperly connected components and replacing them with new components, incorporate an X-Y table for clamping the board with the target component positioned on a vertical working axis, using a heated, component-gripping vacuum head movably mounted for vertical movement and angularly rotatable pivoting adjustment, and jets of hot compressed air directed at the component's peripheral terminal leads, bringing them to solder-melting temperature, with a reversible angular drive motor connected to deliver torque to the head gently or abruptly or in reciprocating fashion, producing pivoting head movement over a small angle of rotation, shearing the adhesive which bonds the component in place, all under control of a programmed microcomputer governing operating sequences selected and initiated by the operator.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: September 29, 1987
    Assignee: Micro Electronic Systems, Inc.
    Inventors: LaVerne M. Green, Adrio L. Vannoni, Ivan K. Pummell