Patents by Inventor Virgil E. Bottom

Virgil E. Bottom 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 of adjusting the frequency of a crystal resonator and reducing ageing effects
    Patent number: 4130771
    Abstract: A method is provided for adjusting the resonant frequency of an aluminum plated quartz resonator so as to reduce the effect of aging. The method comprises initially forming the aluminum plated resonator so that its frequency is above the nominal frequency, and then reducing the frequency to the nominal value by anodically forming an oxide film with a thickness in excess of 50A on the aluminum plating.
    Type: Grant
    Filed: June 9, 1977
    Date of Patent: December 19, 1978
    Assignee: Tyco Crystal Products, Inc.
    Inventor: Virgil E. Bottom
  • Method of improving ohmic contact through high-resistance oxide film
    Patent number: 4060888
    Abstract: A novel method is described for improving the ohmic contact through a relatively high electrical-resistance oxide film formed on at least one of two materials joined together to provide a low-resistance electrical junction. A current pulse of sufficient magnitude and duration is directed through the junction so that the oxide film breaks down and so that normal operating currents can then pass through the junction between the two materials.
    Type: Grant
    Filed: June 29, 1976
    Date of Patent: December 6, 1977
    Assignee: Tyco Filters Division, Inc.
    Inventors: Virgil E. Bottom, Robert E. Christian