Patents by Inventor Michael J. Guidry

Michael J. Guidry 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: 11939844
    Abstract: A rotor bearing system configured to operatively couple a progressing cavity machine to an external device can comprise a housing including an inner surface defining a first bore extending through the housing along a central axis, a first bearing arranged on the inner surface, and a shaft member including an outer surface extending between a proximal portion and a distal portion of the shaft member and a second bearing arranged on the outer surface, the second bearing the second bearing configured to contact the first bearing to limit eccentric motion of the driveshaft of the external device and the rotor head of the progressing cavity machine relative to a stator of the progressing cavity machine during rotation of the rotor head, the shaft member, and the driveshaft.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: March 26, 2024
    Assignee: NATIONAL OILWELL VARCO, L.P.
    Inventors: Michael J. Guidry, Jr., Daniel Alvarado
  • Publication number: 20240026738
    Abstract: A rotor bearing system configured to operatively couple a progressing cavity machine to an external device can comprise a housing including an inner surface defining a first bore extending through the housing along a central axis, a first bearing arranged on the inner surface, and a shaft member including an outer surface extending between a proximal portion and a distal portion of the shaft member and a second bearing arranged on the outer surface, the second bearing the second bearing configured to contact the first bearing to limit eccentric motion of the driveshaft of the external device and the rotor head of the progressing cavity machine relative to a stator of the progressing cavity machine during rotation of the rotor head, the shaft member, and the driveshaft.
    Type: Application
    Filed: July 22, 2022
    Publication date: January 25, 2024
    Inventors: Michael J. Guidry, JR., Daniel Alvarado
  • Patent number: 11152901
    Abstract: An instrumentation amplifier including a pair of input amplifiers, each including an input transistor and a feedback current amplifier configured to amplify and feedback an error current from the input transistor. The arrangement can enable a current efficient solution where the amplifier can operate with very low input signals that are close to, or potentially below ground, without requiring a negative power supply voltage.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: October 19, 2021
    Assignee: Analog Devices, Inc.
    Inventor: Michael J. Guidry
  • Publication number: 20200083852
    Abstract: An instrumentation amplifier including a pair of input amplifiers, each including an input transistor and a feedback current amplifier configured to amplify and feedback an error current from the input transistor. The arrangement can enable a current efficient solution where the amplifier can operate with very low input signals that are close to, or potentially below ground, without requiring a negative power supply voltage.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 12, 2020
    Inventor: Michael J. Guidry
  • Publication number: 20150125329
    Abstract: A progressing cavity pump/motor includes a stator (12) having a metal interior surface (14) and one or more spiraling internal lobes (16). The rotor (18) has a metal exterior surface (20) and one or more spiraling external lobes (22) for cooperating with the stator to form progressing cavities between the stator and the rotor during rotation of the rotor. At least one of the stator interior surface and the rotor exterior surface include a plurality of spaced grooves (30) in the respective surface, such that fluid flowing to a gap between the stator and the rotor is disrupted by the spaced grooves to reduce fluid leakage between the stator and the rotor.
    Type: Application
    Filed: December 9, 2014
    Publication date: May 7, 2015
    Inventor: Michael J. Guidry, JR.
  • Patent number: 8672656
    Abstract: A progressing cavity pump/motor (10) includes a stator housing (12), a polymeric layer (14), and a rotor (16). A plurality of axially extending grooves (24) are formed in the interior surface of the stator housing for receiving polymeric material therein. At least one seal gland (46) adjacent an end of the polymeric layer maintains sealing between the stator housing and the polymeric layer.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: March 18, 2014
    Assignee: Robbins & Myers Energy Systems L.P.
    Inventor: Michael J. Guidry, Jr.
  • Publication number: 20130287616
    Abstract: A progressing cavity pump/motor includes a stator (12) having a metal interior surface (14) and one or more spiraling internal lobes (16). The rotor (18) has a metal exterior surface (20) and one or more spiraling external lobes (22) for cooperating with the stator to form progressing cavities between the stator and the rotor during rotation of the rotor. One or both the stator interior surface and the rotor exterior surface include a rough surface (30) having an Ra greater than 100 micro inches, such that fluid flowing to a gap between the stator and the rotor is disrupted by the rough surfaces to reduce fluid leakage between the stator and the rotor.
    Type: Application
    Filed: April 30, 2013
    Publication date: October 31, 2013
    Applicant: National Oilwell Varco, L.P.
    Inventor: Michael J. Guidry, JR.
  • Patent number: 8430260
    Abstract: A closure 10 is provided for retaining fluid pressure within a vessel, and comprises a hub 12 having an access opening to the vessel, with the hub having a circumferential stop 17 and one or more recesses 50 each extending radially outward from an adjacent inner surface 26 of the hub. A door 22 is positioned between the stop surface and the vessel, and a latch member 30 brings the door into sealing engagement with the stop member. One or more lugs 24 each extend radially outward from an exterior surface of the door, which may be tilted from a closed position to an open position then back to the closed position by a pair of cables extending from the door to outside the hub.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: April 30, 2013
    Assignee: Robbins & Myers Energy Systems L.P.
    Inventor: Michael J. Guidry, Jr.
  • Patent number: 8322556
    Abstract: A closure 10 is provided for retaining fluid pressure within a vessel, and comprises a hub 12 having an access opening to the vessel, with the hub having a circumferential stop 17 and one or more recesses 50 each extending radially outward from an adjacent inner surface 26 of the hub. A door 22 is positioned between the stop surface and the vessel, and a latch member 30 brings the door into sealing engagement with the stop member. One or more lugs 24 each extend radially outward from an exterior surface of the door, such that a respective lug engages the hub about a respective recess to seal the door to the hub, while the door may be moved to pass through the one or more recesses and out of the hub.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: December 4, 2012
    Assignee: Robbins & Myers Energy Systems L.P.
    Inventor: Michael J. Guidry, Jr.
  • Publication number: 20120156078
    Abstract: A progressing cavity pump/motor (10) includes a stator housing (12), a polymeric layer (14), and a rotor (16). A plurality of axially extending grooves (24) are formed in the interior surface of the stator housing for receiving polymeric material therein. At least one seal gland (46) adjacent an end of the polymeric layer maintains sealing between the stator housing and the polymeric layer.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 21, 2012
    Inventor: Michael J. Guidry, JR.
  • Patent number: 8147228
    Abstract: A progressing cavity pump/motor includes a stator tube (12), a rotor (20) within the stator tube, and a coupling assembly (30) interconnecting the upper and lower rotor sections. The coupling includes a drive adapter (32) and a socket adapter (36) for transmitting torque between the upper and lower rotor sections, and at least one alignment surface (60) in cooperation with a mating surface to rotationally position the drive adapter within the socket adapter at a selected circumferential position. The pump/motor may be reliably assembled in the field while maintaining precise axial and rotational positioning of the rotor sections.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: April 3, 2012
    Assignee: Robbins & Myers Energy Systems, L.P.
    Inventor: Michael J. Guidry, Jr.
  • Patent number: 8109746
    Abstract: A progressing cavity pump/motor includes an upper stator tube (14), a lower stator tube (16), a rotor (20) sitting between the upper and lower stator tubes, and a coupling assembly (30) interconnecting the stator tubes comprising an outer sleeve (32), an inner sleeve (36) and a nut (60) for threaded engagement with at least one of the sleeves to bring a stop surface on the inner sleeve into mating engagement with the stop surface on the outer sleeve. The pump/motor is usually assembled in the field while maintaining precise axial and rotational positioning of the stator tubes.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: February 7, 2012
    Assignee: Robbins & Myers Energy Systems L.P.
    Inventor: Michael J. Guidry, Jr.
  • Publication number: 20120000055
    Abstract: A closure 10 is provided for retaining fluid pressure within a vessel, and comprises a hub 12 having an access opening to the vessel, with the hub having a circumferential stop 17 and one or more recesses 50 each extending radially outward from an adjacent inner surface 26 of the hub. A door 22 is positioned between the stop surface and the vessel, and a latch member 30 brings the door into sealing engagement with the stop member. One or more lugs 24 each extend radially outward from an exterior surface of the door, such that a respective lug engages the hub about a respective recess to seal the door to the hub, while the door may be moved to pass through the one or more recesses and out of the hub.
    Type: Application
    Filed: September 15, 2011
    Publication date: January 5, 2012
    Inventor: MICHAEL J. GUIDRY, JR.
  • Patent number: 8052006
    Abstract: A closure 10 is provided for retaining fluid pressure within a vessel, and comprises a hub 12 having an access opening to the vessel, with the hub having a circumferential stop 17 and one or more recesses 50 each extending radially outward from an adjacent inner surface 26 of the hub. A door 22 is positioned between the stop surface and the vessel, and a latch member 30 brings the door into sealing engagement with the stop member. One or more lugs 24 each extend radially outward from an exterior surface of the door, such that a respective lug engages the hub about a respective recess to seal the door to the hub, while the door may be moved to pass through the one or more recesses and out of the hub.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: November 8, 2011
    Assignee: Robbins & Myers Energy Systems L.P.
    Inventor: Michael J. Guidry, Jr.
  • Publication number: 20100322808
    Abstract: A progressing cavity pump/motor includes a stator tube (12), a rotor (20) within the stator tube, and a coupling assembly (30) interconnecting the upper and lower rotor sections. The coupling includes a drive adapter (32) and a socket adapter (36) for transmitting torque between the upper and lower rotor sections, and at least one alignment surface (60) in cooperation with a mating surface to rotationally position the drive adapter within the socket adapter at a selected circumferential position. The pump/motor may be reliably assembled in the field while maintaining precise axial and rotational positioning of the rotor sections.
    Type: Application
    Filed: June 22, 2009
    Publication date: December 23, 2010
    Inventor: Michael J. Guidry, JR.
  • Publication number: 20100316518
    Abstract: A progressing cavity pump/motor includes an upper stator tube (14), a lower stator tube (16), a rotor (20) sitting between the upper and lower stator tubes, and a coupling assembly (30) interconnecting the stator tubes comprising an outer sleeve (32), an inner sleeve (36) and a nut (60) for threaded engagement with at least one of the sleeves to bring a stop surface on the inner sleeve into mating engagement with the stop surface on the outer sleeve. The pump/motor is usually assembled in the field while maintaining precise axial and rotational positioning of the stator tubes.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 16, 2010
    Inventor: Michael J. Guidry, JR.
  • Patent number: 7784534
    Abstract: A drive assembly for powering a rotating rod string (14) passing through a surface wellhead (18) includes a torque conveying housing (32) containing a radially outer member supporting a plurality of outer member magnets and rotated by a motor. A radially inner member (48) supports a plurality of inner member magnets and is rotatable within the outer member, with magnetic forces between the plurality of outer member magnets and the plurality of inner member magnets rotating the inner member magnets and thus the radially inner member.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: August 31, 2010
    Assignee: Robbins & Myers Energy Systems L.P.
    Inventors: Billy W. White, Michael J. Guidry, Jr.
  • Patent number: 7671779
    Abstract: An analog front end for a multi-channel signal processor is provided. The analog front end includes a first stage that is operable to receive a plurality of channel inputs. The first stage includes a ping/pong capacitor array corresponding to each of the channel inputs and an operational amplifier that may be coupled successively to each of the ping/pong capacitor arrays.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: March 2, 2010
    Assignee: National Semiconductor Corporation
    Inventors: Michael J. Guidry, Jr., Jianguo Yao, Matthew L. Courcy
  • Publication number: 20090260800
    Abstract: A drive assembly for powering a rotating rod string 14 passing through a surface wellhead 18 includes a torque conveying housing 32 containing a radially outer member supporting a plurality of outer member magnets and rotated by a motor. A radially inner member 48 supports a plurality of inner member magnets and is rotatable within the outer member, with magnetic forces between the plurality of outer member magnets and the plurality of inner member magnets rotating the inner member magnets and thus the radially inner member. The drive assembly provides a highly reliable sealed construction for rotating in the rod string with minimal risk of fluid leaking from the assembly.
    Type: Application
    Filed: April 22, 2008
    Publication date: October 22, 2009
    Inventors: Billy W. White, Michael J. Guidry, JR.
  • Publication number: 20090145904
    Abstract: A closure 10 is provided for retaining fluid pressure within a vessel, and comprises a hub 12 having an access opening to the vessel, with the hub having a circumferential stop 17 and one or more recesses 50 each extending radially outward from an adjacent inner surface 26 of the hub. A door 22 is positioned between the stop surface and the vessel, and a latch member 30 brings the door into sealing engagement with the stop member. One or more lugs 24 each extend radially outward from an exterior surface of the door, which may be tilted from a closed position to an open position then back to the closed position by a pair of cables extending from the door to outside the hub.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 11, 2009
    Inventor: Michael J. Guidry, JR.