Patents by Inventor Michael S. Campbell

Michael S. Campbell 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).

  • Patent number: 7147427
    Abstract: A steam-driven turbine system for a power plant in which a high pressure and a low pressure turbine are coupled to a common shaft to drive an external generator. Process steam supply is used as gland sealing steam for the low pressure turbine and turbine driven steam pumps. The high pressure turbine has glands that are self sealing at higher generator outputs, and thus the turbine utilizes the process steam supply for gland sealing only during startup or at low generator outputs. The excess or “spillover” steam that is produced by the high pressure turbine at higher generator outputs is diverted away from the main condenser and/or low pressure feed heater. The spillover steam, which is normally waterlogged, is first passed through a separator to remove excess moisture. The spillover steam is next passed through a superheater to raise its temperature. The spillover steam is then directed to the low pressure turbine and/or turbine driven steam pumps so that it may be used as gland sealing steam.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: December 12, 2006
    Assignee: STP Nuclear Operating Company
    Inventor: Michael S. Campbell
  • Patent number: 6652352
    Abstract: A radio controlled robotic toy having a main body chassis with at least two middle legs and at least two corner legs attached to the chassis, the legs being interconnected and driven by a linkage drive arm which is, in turn, operated by a radio-controlled electric motor which has computer electronics and software to control and cause movement of the legs for propelling the toy forward and backward. A six-legged walking animatronic robot toy is one of the preferred embodiments, including a moving head with jaw pincers, six moving legs, which yields a versatile, durable, speedy robot toy.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: November 25, 2003
    Inventors: William C. MacArthur, Michael S. Campbell, James C. Barnes, James A. Campbell