Patents by Inventor Bruce A. Keller

Bruce A. Keller 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).

  • Composite rotary tool and tool fabrication method
    Patent number: 6511265
    Abstract: A composite rotary tool includes at least first and second regions comprising first and second materials, respectively. The first and second regions are autogenously bonded and differ with respect to at least one characteristic such as, for example, modulus of elasticity, hardness, wear resistance, fracture toughness, tensile strength, corrosion resistance, coefficient of thermal expansion, or coefficient of thermal conductivity. A method for producing the composite rotary tool includes placing a first metallurgical powder into a first region of a void of a mold, and placing a second metallurgical powder into a second region of the void. The first metallurgical powder differs from the second metallurgical powder, and at least a portion of the first metallurgical is brought into contact with the second metallurgical powder. The mold is compressed to consolidate the first and second metallurgical powders to form a compact, and the compact subsequently is sintered.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: January 28, 2003
    Assignee: ATI Properties, Inc.
    Inventors: Prakash K. Mirchandani, Bruce A. Keller
  • Light transmissive trim plate for recessed lighting fixture
    Patent number: 5826970
    Abstract: A light-transmissive trim plate and mounting apparatus for being received in a recessed lighting fixture installed in a space over a ceiling, in which a light bulb, being operated for light, communicates light through the trim plate for providing an ornamental illuminative effect around a perimeter of the opening for the recessed lighting fixture. The trim plate comprises a translucent light-transmissive trim ring defined by a cup having a first open end and a second open end with a flange extending laterally around the first end. The trim ring defines a perimeter ring conforming in shape to an opening of a recessed lighting fixture. A support engages the trim ring in the recessed lighting fixture. The trim ring covers a gap between the recessed lighting fixture and the ceiling while providing an ornamental illuminative appearance during operation of the light bulb.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: October 27, 1998
    Assignee: Effetre U.S.A.
    Inventors: Bruce A. Keller, Stephen L. Smoak, Ivano Ferro
  • Computer reservation system with means to rank travel itineraries chosen in terms of schedule/fare data
    Patent number: 4862357
    Abstract: A remote data base containing flight schedule, fare, and fare limitations information is accessed from a local computer terminal. The information retrieved is sorted and scored in accordance with a predetermined travel policy stored in the local computer memory, and as applied to a proposed travel itinerary. A ranked list of applicable flights is merged into a single display.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: August 29, 1989
    Assignee: SystemOne Holdings, Inc.
    Inventors: Mark L. Ahlstrom, Bruce A. Keller, Randy S. Storch