Patents by Inventor Kenneth W. Economy

Kenneth W. Economy 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).

  • Method of soldering joints by moving them through a target area on which a stream of hot gas is focused
    Patent number: 4789096
    Abstract: A method of soldering component leads to I/O pads on a printed circuit board, without desoldering any other circuit components which were previously soldered to the board near the pads, includes the steps of: forming a mechanical assembly in which respective joints of the pads and the leads and respective solder mounds are mechanically held together; moving the assembly at a predetermined speed on a conveyor such that the joints, but not the previously soldered components, sequentially pass through a target area which is small relative to the total number of joints; and melting and then hardening the solder mounds, without desoldering the previously soldered components, by directing a focused stream of hot gas at the target area as the joints move therethrough on the conveyor.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: December 6, 1988
    Assignee: Unisys Corporation
    Inventors: Gerald R. Dunn, Kenneth W. Economy, Thomas A. Snodgrass