Patents by Inventor Darrell R. Morrison

Darrell R. Morrison 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: 6054790
    Abstract: A V-block with a preselected shape defining a preselected included angle between a pair of V-block side portions is connected to a laminated spider of a rotor at preselected location between spaced apart adjacent poles of the rotor by disposing an elongated connecting piece in a slot longitudinally disposed in the spider and connecting the elongated connecting piece to the V-block by a fastener. Applying a preselected torque to the fastener establishes a predetermined force between the V-block and the conductive windings disposed about adjacent poles. The V-block arrangement is particularly suited for use in a dynamo-electric machine.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: April 25, 2000
    Assignee: Emerson Electric Co.
    Inventors: Pete Kjeer, Darrell R. Morrison
  • Patent number: 5998893
    Abstract: An integral heat sink and fan rectifier assembly comprises a disk fastened to a rotor of a synchronous motor or generator, the disk having a central bore, a plurality of fan blades disposed on the outer periphery and a circular array of recesses that receive insulation encapsulated rectifier units that are fastened to the disk and a have a heat transfer plates that engage the bottom of the recesses to transfer heat to the disk which conducts the transferred heat to the fan blades, which transfer the heat to the cooling air as rotor rotates and blows cooling air through a portion of the motor or generator.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: December 7, 1999
    Inventors: John T. Fowler, Darrell R. Morrison
  • Patent number: 5606211
    Abstract: Slot wedges, electrically-conductive, used in rotor slots, between rotor teeth, and overlying the rotor coils, are serially arranged in the slots and have arcuate grooves in opposite ends thereof. Inserts, also electrically-conductive, are spring-loaded in the grooves to effect electrical continuity fully therealong, lengthwise of the rotor, from wedge to wedge.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: February 25, 1997
    Assignee: Dresser-Rand Company
    Inventors: Darrell R. Morrison, James L. Nessa, James J. McClurg
  • Patent number: 5550417
    Abstract: Electrically-conductive, segmental, slot wedges, with electrically-conductive inserts therebetween, and electrically-conductive interconnects, between end ones of the wedges and the annular, end retaining ring, of a rotor, define an amortisseur winding for the rotor. The inserts are spring-loaded in end slots formed in the wedges, and in an embodiment of the invention, are formed of beryllium copper and are silver-plated. As is typical of rotors in electrical, rotating equipment, the slot wedges are formed of aluminum.
    Type: Grant
    Filed: July 3, 1995
    Date of Patent: August 27, 1996
    Assignee: Dresser-Rand Company
    Inventors: Darrell R. Morrison, James L. Nessa, James J. McClurg
  • Patent number: 4894575
    Abstract: An electrical generator connection, to connect coil ends, and a method of making the same. A header cap having a spherically shaped portion is brazed to each coil end to be connected. A pair of connector bars, each having a pair of similarly sized spherical seats, receives the spherical portion of each coil end header cap. Electrical and mechanical connection is provided by bolting the two connector bars together.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: January 16, 1990
    Assignee: Westinghouse Electric Corp.
    Inventors: Lennart S. Nilsson, John M. Butler, III, Hector O. Ponce, Darrell R. Morrison
  • Patent number: 4618795
    Abstract: A structure for consolidating large turbine generator end turns while providing for thermal compensation includes a decoupled brace that is located radially outside the end turns and has a bottom piece secured to a bracket secured to the core as well as a top piece adjacent the coil and an intermediate decoupler between the two that includes elastomeric material for cushioning as well as a slip layer for allowing free axial movement between the top and bottom pieces of the brace. Additionally, keyed strain blocks may be utilized between top and bottom coils of the assembly for greater consolidation.
    Type: Grant
    Filed: April 10, 1985
    Date of Patent: October 21, 1986
    Assignee: Westinghouse Electric Corp.
    Inventors: Glenn D. Cooper, John M. Butler, III, Darrell R. Morrison, Charles L. Senic, Lennart S. Nilsson, Charles M. Rowe