Patents by Inventor K. Henry Date

K. Henry Date 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).

  • Load break switch
    Patent number: 4713505
    Abstract: A compact load break switch having at least one vacuum interrupter connected between two terminals carried by respective insulating bushings through a current exchange assembly. The vacuum interrupter is disposed within one of the insulating bushings, and a current exchange insulating housing having portions which extend telescopically into both insulating bushings, provides adequate creepage distance through air from the vacuum interrupter and the current exchange assembly to a grounded housing for the load break switch. Also, a current transformer is disposed about the insulating housing to provide remote indication of the flow of fault current through the current exchange assembly.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: December 15, 1987
    Assignee: Cooper Industries, Inc.
    Inventors: K. Henry Date, Ronald Wainio
  • Load break switch
    Patent number: 4343030
    Abstract: A compact load break switch having at least one vacuum interrupter connected between two terminals carried by respective insulating bushings through a current exchange assembly. The vacuum interrupter is disposed within one of the insulating bushings, and a current exchange insulating housing having portions which extend telescopically into both insulating bushings, provides adequate creepage distance through air from the vacuum interrupter and the current exchange assembly to a grounded housing for the load break switch. Also, a current transformer is disposed about the insulating housing to provide remote indication of the flow of fault current through the current exchange assembly.
    Type: Grant
    Filed: February 4, 1981
    Date of Patent: August 3, 1982
    Assignee: McGraw-Edison Company
    Inventors: K. Henry Date, Ronald Wainio
  • Load break switch
    Patent number: 4293834
    Abstract: A compact load break switch having at least one vacuum interrupter connected between two terminals carried by respective insulating bushings through a current exchange assembly. The vacuum interrupter is disposed within one of the insulating bushings, and a current exchange insulating housing having portions which extend telescopically into both insulating bushings, provides adequate creepage distance through air from the vacuum interrupter and the current exchange assembly to a grounded housing for the load break switch. Also, a current transformer is disposed about the insulating housing to provide remote indication of the flow of fault current through the current exchange assembly.
    Type: Grant
    Filed: September 6, 1978
    Date of Patent: October 6, 1981
    Assignee: McGraw-Edison Company
    Inventors: K. Henry Date, Ronald Wainio