Patents Represented by Attorney Sutton McAughan Deaver PLLC
  • Patent number: 8347989
    Abstract: A hole opener having a hybrid reaming section for reaming subterranean wellbores may include a tubular reamer body having a longitudinal axis and upper and lower ends, a rolling cutter mount coupled to the body, a rolling cutter rotatably coupled to the mount, and a fixed blade coupled to the body adjacent the mount. A method of forming a hybrid reamer tool for downhole use may include providing a tubular stem having couplers on the upper and lower ends, coupling a reamer body having an outer periphery to the stem between the stem upper and lower ends, coupling a rolling cutter mount to the outer periphery of the reamer body, the mount having a rolling cutter rotatably coupled thereto, and coupling a fixed blade to the outer periphery of the reamer body adjacent the rolling cutter mount.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: January 8, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Robert J. Buske, Rudolf C. Pessier
  • Patent number: 8336646
    Abstract: An earth boring drill bit comprising a bit body having a bit profile including nose, shoulder, and gage sections; a plurality of fixed cutting elements secured to the body and defining a fixed cutter profile; and a roller cone rotatably secured to the body, the roller cone having a plurality of roller cone cutting elements defining a roller cutter profile, wherein the fixed cutter profile extends beyond the roller cutter profile in at least one of the sections and the roller cutter profile extends beyond the fixed cutter profile in at least one of the sections. The roller cutter profile may extend beyond the fixed cutter profile in the shoulder and gage sections, possibly with the fixed cutter profile extending beyond the roller cutter profile in the nose section and/or a cone section.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: December 25, 2012
    Assignee: Baker Hughes Incorporated
    Inventor: Ajay V. Kulkarni
  • Patent number: 8323173
    Abstract: A physiologic control method and system for an implantable blood pump includes operating the pump at a predetermined speed and monitoring the patient's diastolic pump flow rate. The predetermined speed is varied in response to the diastolic pump flow rate. The pump speed may further be adjusted in response to the patient's heart rate. The speed may be increased and decreased in response to corresponding changes in the diastolic pump flow rate, and increased in response to an increase in heart rate.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: December 4, 2012
    Assignee: MicroMed Technology, Inc.
    Inventors: Robert J Benkowski, Gino F Morello
  • Patent number: 8303482
    Abstract: A physiologic control system and method for controlling a blood pump system such as a VAD system. The pump system includes, for example, a blood pump and a controller for controlling the pump. The system may further include a flow measurement device. A desired peak to peak flow amplitude is determined, and then adjusted in response to various system parameters either manually or automatically by the system.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: November 6, 2012
    Assignee: Micromed
    Inventors: Heinrich Schima, Michael Vollkron, Gino Morello, Robert Benkowski
  • Patent number: 8240221
    Abstract: A method and pumping unit for use with an inclined wellhead. Proper address of the wellhead is accomplished through incorporation of an elbow-shaped walking beam. The forward section of the walking beam is fabricated such that its longitudinal axis is angled to address the inclination of the wellhead. The rearward section of the walking beam and the four-bar linkage system remains unchanged relative to a prior art pump jack intended for vertical wells. This modification is a simple and effective means of addressing an angled wellhead while preserving the well-known operating characteristics of a prior art pumping unit. Torque factors, polished rod position, speed, acceleration, stroke length, and effective counterbalance remain unchanged.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: August 14, 2012
    Assignee: Lufkin Industries, Inc.
    Inventors: Roddy W. Simpson, David W. Doyle, Martin E. Morales, Brady D. Romano
  • Patent number: 8206482
    Abstract: Vacuum cleaner filters, in particular replaceable vacuum cleaner filters suitable for both dry and wet/dry type vacuum cleaners are disclosed, as well as systems incorporating the use of such filters and methods for their use. The filters include a plurality of adjacently positioned pleats arranged in a closed circumferential, cylindrically-shaped path, a top end cap having a central orifice capable of constricting a post on a vacuum filter cage, and optionally a molded end ring oppositely-spaced from the top end cap for engagement with the motor housing of a vacuum cleaner.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: June 26, 2012
    Assignee: Emerson Electric Co.
    Inventors: Matthew A. Williams, Terrence L. Stanek, Jeffrey L. Young
  • Patent number: 8191635
    Abstract: A hole opener having a hybrid reaming section for downhole earth boring operations may include a reamer body having an axis of rotation, an outer periphery, and upper and lower ends, a plurality of rolling cutters coupled to the outer periphery and depending downwardly, the rolling cutters defining a rolling cutter cutting profile having a cutting diameter, a plurality of fixed blade cutters coupled to the outer periphery and defining a fixed blade cutter cutting profile having a cutting diameter, each fixed blade cutter being coupled between adjacent rolling cutters. At least one of the rolling cutters may be asymmetrically coupled about the axis. The cutting diameter of the rolling cutter cutting profile may be larger than the cutting diameter of the fixed blade cutter cutting profile. At least a portion of the rolling cutter cutting profile may be deeper than the fixed blade cutter cutting profile.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: June 5, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Robert J. Buske, Rudolf C. Pessier
  • Patent number: 8157026
    Abstract: An earth boring drill bit comprising a bit body having a bit profile including nose, shoulder, and gage sections; a plurality of fixed cutting elements secured to the body and defining a fixed cutter profile; and a roller cone rotatably secured to the body, the roller cone having a plurality of roller cone cutting elements defining a roller cutter profile, wherein the fixed cutter profile extends beyond the roller cutter profile in at least one of the sections and the roller cutter profile extends beyond the fixed cutter profile in at least one of the sections. The roller cutter profile may extend beyond the fixed cutter profile in the shoulder and gage sections, possibly with the fixed cutter profile extending beyond the roller cutter profile in the nose section and/or a cone section.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: April 17, 2012
    Assignee: Baker Hughes Incorporated
    Inventor: Ajay V. Kulkarni
  • Patent number: D659315
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: May 8, 2012
    Assignee: Emerson Electric Co.
    Inventors: Robert Hollis, Shane Glasgow, Douglas Ritterling
  • Patent number: D666369
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: August 28, 2012
    Assignee: Emerson Electric Co.
    Inventors: Matthew A. Williams, Shane Glasgow, Douglas K. Ritterling
  • Patent number: D669646
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: October 23, 2012
    Assignee: Emerson Electric Co.
    Inventors: John L. Theising, Shane Glasgow, Douglas K. Ritterling
  • Patent number: D670046
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: October 30, 2012
    Assignee: Emerson Electric Co.
    Inventors: John L. Theising, Shane Glasgow, Douglas K. Ritterling
  • Patent number: D670048
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: October 30, 2012
    Assignee: Emerson Electric Co.
    Inventors: John L. Theising, Shane Glasgow, Douglas K. Ritterling