Patents by Inventor Harold G. Andrews

Harold G. Andrews 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: 4977370
    Abstract: A test fixture useful in testing printed circuit boards requires wire-wrapping only on a single side of a single board and is characterized by a reduced signal path length. The test fixture is provided with a translator device for conducting signals between system contact points in a testing system and contact points corresponding to selected locations on a unit-under-test ("UUT"). The translator device includes extended system pins, non-extended system pins, UUT pins and through-posts. On one side of the translator board, the UUT pins are wire-wrapped to the extended system pins wherever space allows, and otherwise to the through pins. The through pins make electrical contact to the non-extended system pins by means of conductive pads disposed on the other side of the translator board. A method of fabricating such a test fixture includes the step of computing optimal UUT and through-post locations.
    Type: Grant
    Filed: December 6, 1988
    Date of Patent: December 11, 1990
    Assignee: Genrad, Inc.
    Inventor: Harold G. Andrews