Patents by Inventor Norman T. Forrest

Norman T. Forrest 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).

  • Probe apparatus for testing electronic circuits immersed in a liquid cryogen
    Patent number: 5239261
    Abstract: A mechanical holder for receiving an integrated circuit chip and an etched circuit board probe and holding them in predetermined relative positions includes an alignment block including alignment elements and having a main surface against which the probe is positioned, and a chip receiver having a main surface and including alignment elements that are complementary to the alignment elements of the alignment member. The chip receiver is attached to the alignment member with the main surface of the chip receiver in confronting relationship with the main surface of the alignment member and with the alignment elements of the chip receiver in registration with the alignment elements of the alignment member. The chip receiver defines a cavity that opens at its main surface.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: August 24, 1993
    Assignee: Tektronix, Inc.
    Inventors: Bruce Murdock, Norman T. Forrest