Patents by Inventor Harold M. Bone

Harold M. Bone 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).

  • Electric furnace heater mounting
    Patent number: 4771166
    Abstract: A vacuum furnace has a heating chamber heated by metal strip electric heater elements. The elements have insulated mechanical support between their ends to hold them in position in the furnace. Support is provided by assemblies having spaced apart mounting assemblies with a rigid bridge compliantly mounted therebetween. The heater strip is compliantly connected to the bridge. Each mounting assembly has a metal post connected to the furnace heating chamber and surrounded by a ceramic sleeve. The ceramic sleeve is surrounded by two ceramic tubes which hold an end of the bridge therebetween.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: September 13, 1988
    Assignee: Grier-McGuire, Inc.
    Inventors: Dane T. McGuire, John K. Grier, Harold M. Bone, Suresh C. Jhawar, Michael T. Mercer