Patents by Inventor Bruce A. Boettger

Bruce A. Boettger 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).

  • Tunnel furnace roller assembly
    Patent number: 6402507
    Abstract: A tunnel or reheat furnace roller assembly includes a hollow tube or arbor of low alloy steel and an inner concentric tube for providing a flow of cooling water. About the exterior of the tube or arbor is cast a surround or jacket having larger diameter, spaced apart wheels which engage and support workpieces in the furnace and integrally formed intermediate smaller diameter regions. The integral surround is preferably cast of Waspaloy or other high temperature, nickel alloy steel.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: June 11, 2002
    Assignee: Cast Masters, Inc.
    Inventor: Bruce A. Boettger