Patents by Inventor E. Leon Volling

E. Leon Volling 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).

  • Electrically traced piping transition
    Patent number: 4080527
    Abstract: A novel transition through a wall separating a hazardous area from a less hazardous area is provided for an electrically traced, insulated conduit. The transition provides continuity of heating and insulation for the conduit while providing electrical isolation between the hazardous and less hazardous areas. The transition also provides mechanical support and protection and allows simple installation of the traced conduit through the wall.
    Type: Grant
    Filed: September 10, 1976
    Date of Patent: March 21, 1978
    Assignee: O'Brien Corporation
    Inventor: E. Leon Volling