Patents by Inventor David K. Halliday

David K. Halliday 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).

  • X-ray inspection apparatus for electronic circuits
    Patent number: 5388136
    Abstract: An X-ray computerized system for programmable, high-resolution X-ray inspection of manufactured electronic circuits. Such a system comprises: means for directing X-rays to produce X-ray images representing illuminations of circuit elements from different angles; and detecting means for detecting said images, said detecting means comprising a plurality of detectors, each of said detectors positioned to intercept X-rays after passing through a circuit element from a particular associated angle of illumination.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: February 7, 1995
    Assignee: International Business Machines Corporation
    Inventors: David K. Halliday, Colin D. McCall, Alexander S. McKinnon, Christopher D. Smith
  • Gas-fed transfer track
    Patent number: 5065858
    Abstract: A gas feed apparatus is described for the transport of articles between assembly line stations. A turbulent gas flow is generated which provides a balanced driving force for, in particular, lightweight, irregularly shaped articles, and thus reduces the incidence of inconsistent feeding and jamming. Incorporated into the apparatus are features for controlling both the number and the speed and stability of articles fed at any one time from the line to a station. In this way rapid and efficient transfer of articles between stations is ensured.
    Type: Grant
    Filed: February 16, 1990
    Date of Patent: November 19, 1991
    Assignee: International Business Machines Corporation
    Inventors: Nigel J. Akam, Donald M. Cameron, David K. Halliday, Raymond Paterson