Patents by Inventor John R. Jungblut

John R. Jungblut 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: 5034749
    Abstract: The apparatus (20) includes electrically conductive contacts (44, 54) that are spaced apart a distance slightly less than the distance between the terminals (34, 36) formed on the components (24) to be tested. One contact (54) is held in position by a spring (112). The other contact (44) is stationary. The contacts (44, 54) slide against the terminal surfaces (52, 56) of the components (24) that are conveyed into a test location (26) between the contacts. The apparatus employs few moving parts and the sliding motion of the contacts (44, 54) against the terminal surfaces (52, 56) ensures that the contacts (44, 54) penetrate any oxide layer present on the terminal surfaces (52, 56). In an alternative embodiment (160), two sets of contacts (44L, 44T, 54L, 54T) are employed for testing components (24) in two adjacent test locations (26L, 26T).
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: July 23, 1991
    Assignee: Electro Scientific Industries, Inc.
    Inventors: John R. Jungblut, David A. Bruno