Patents by Inventor John U. Daniels, Jr.

John U. Daniels, Jr. 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 and apparatus for implementing four-frequency measuring process for coupled-dual resonator crystals using both resonator ports
    Patent number: 5047726
    Abstract: A third case or manner of obtaining the four critical frequencies useful in accurately measuring coupled-dual resonator crystals, wherein both ports of the crystal structure are monitored, rather than a single port in the previously known cases. Here the B port, for example, is monitored with the A-side open-circuited or with a capacitor in parallel with it, and the A port is monitored with the B-side short-circuited.
    Type: Grant
    Filed: February 16, 1990
    Date of Patent: September 10, 1991
    Assignee: Ericsson GE Mobile Communications Inc.
    Inventors: Gerald Roberts, Samual Toliver, John U. Daniels, Jr.
  • Piezoelectric crystal electrodes and method of manufacture
    Patent number: 4477952
    Abstract: An improved crystal is provided with an aluminum baseplate, a nickel plating on the aluminum baseplate, and a silver plating on the nickel plating. The nickel is plated on the aluminum baseplate before the aluminum has oxidized to provide high yields of stable crystals.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: October 23, 1984
    Assignee: General Electric Company
    Inventors: Robert J. Crescenzi, John U. Daniels, Jr., Gerald E. Roberts