Patents by Inventor Charles T. Plough, Jr.

Charles T. Plough, 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).

  • Nichrome resistive element and method of making same
    Patent number: 4908185
    Abstract: An alloy, adapted for use as a conductor for electrical resistors, consisting essentially of 30-45 wt. % Ni, 30-34 wt. % Cr, 25-35 wt. % Al and an effective amount of a corrosion inhibitor and stabilizer selected from the group consisting of transition metal elements and rare earth elements.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: March 13, 1990
    Assignee: Dale Electronics, Inc.
    Inventor: Charles T. Plough, Jr.
  • Nichrome resistive element and method of making same
    Patent number: 4900417
    Abstract: A resistive element consisting of a metal film, or metal film substitute, comprised of nickel and chromium and which may include aluminum. To this element is added a member of the group consisting essentially of a rare earth element and a transitional element.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: February 13, 1990
    Assignee: Dale Electronics, Inc.
    Inventor: Charles T. Plough, Jr.
  • Nichrome resistive element and method of making same
    Patent number: 4837550
    Abstract: A resistive element consisting of a metal film, or metal film substitute, comprised of nickel and chromium and which may include aluminum. To this element is added a member of the group consisting essentially of a rare earth element and a transitional element.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: June 6, 1989
    Assignee: Dale Electronics, Inc.
    Inventor: Charles T. Plough, Jr.
  • High resistance film resistor
    Patent number: 4498071
    Abstract: An electrical resistor and method of making the same is disclosed wherein a ceramic substrate is coated with a relatively rough dielectric film which is subsequently coated with a thin metal film such as nichrome.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: February 5, 1985
    Assignee: Dale Electronics, Inc.
    Inventors: Charles T. Plough, Jr., Ralph D. Hight