Patents by Inventor Roger Neal Johnson
Roger Neal Johnson 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).
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Patent number: 9335188Abstract: A pressure management system for sensors is provided. The system includes a sampling assembly. The sampling assembly is configured to hold a first portion of a test fluid. Further, the system includes at least one sensor disposed proximate to the sampling assembly. The sensor is configured to determine at least one property of the test fluid. The system also includes a housing that is disposed around the sampling assembly. The housing defines a fluid chamber that houses a balancing fluid. Furthermore, the system includes a flexible device disposed in the fluid chamber that draws a second portion of the test fluid. The flexible device is configured to balance pressure exerted by the test fluid on the sampling assembly by exerting pressure on the balancing fluid with the second portion of the test fluid.Type: GrantFiled: June 28, 2013Date of Patent: May 10, 2016Assignee: General Electric CompanyInventors: Jon Albert Dieringer, Roger Neal Johnson, Cheryl Margaret Surman
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Publication number: 20150000385Abstract: A pressure management system for sensors is provided. The system includes a sampling assembly. The sampling assembly is configured to hold a first portion of a test fluid. Further, the system includes at least one sensor disposed proximate to the sampling assembly. The sensor is configured to determine at least one property of the test fluid. The system also includes a housing that is disposed around the sampling assembly. The housing defines a fluid chamber that houses a balancing fluid. Furthermore, the system includes a flexible device disposed in the fluid chamber that draws a second portion of the test fluid. The flexible device is configured to balance pressure exerted by the test fluid on the sampling assembly by exerting pressure on the balancing fluid with the second portion of the test fluid.Type: ApplicationFiled: June 28, 2013Publication date: January 1, 2015Inventors: Jon Albert Dieringer, Roger Neal Johnson, Cheryl Margaret Surman
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Publication number: 20120141287Abstract: A joint for connecting a first blade segment and a second blade segment of a wind turbine rotor blade is disclosed. The joint includes a body, the body including an outer surface and an inner surface. The outer surface has an aerodynamic contour that generally corresponds to an aerodynamic contour of the first blade segment and the second blade segment. The body includes a pressure side and a suction side extending between a leading edge and a trailing edge. In some embodiments, the joint further includes a channel defined in the outer surface of the body. The channel includes a generally continuous base wall extending between opposing sidewalls. The inner surface includes the base wall. In other embodiments, the joint further includes a channel defined in the body, and a shell extending from the body in a generally span-wise direction.Type: ApplicationFiled: August 29, 2011Publication date: June 7, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Daniel Alan Hynum, Charles Erklin Seeley, Bruce Clark Busbey, Brandon Shane Gerber, Peggy Lynn Baehmann, Roger Neal Johnson
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Patent number: 6786487Abstract: An actuated seal assembly for controlling flow in a fluid path in turbomachinery comprising a seal and a seal carrier coupled to the seal is provided. A displacement apparatus is coupled to the seal carrier for positioning the seal so as to control the flow in the fluid path. In addition, a drive system is provided for powering the displacement apparatus.Type: GrantFiled: December 5, 2001Date of Patent: September 7, 2004Assignee: General Electric CompanyInventors: Osman Saim Dinc, Norman Arnold Turnquist, Mehmet Demiroglu, Hamid Reza Sarshar, Ahmad Safi, Mahmut Faruk Aksit, Roger Neal Johnson, Anthony Holmes Furman, Imdad Imam, Gerald Burt Kliman, James Hopkins, Richard Robert Larsen, David Michael Prowse, Steven Wayne Russell
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Patent number: 6770482Abstract: In one exemplary embodiment, the present invention is directed to a method that comprises providing a reaction substrate having a plurality of substrate reservoirs adapted to receive a reactant system at least partially embodied in a liquid. A thermal unit maintains the reactant system at a first temperature. A head plate is disposed adjacent to the reaction substrate to form a sealed and pressurized headspace above the substrate reservoirs. The head plate is maintained at a second temperature higher than the first temperature. A second reactant may be introduced as a gas into the headspace above the plurality of substrate reservoirs.Type: GrantFiled: July 3, 2000Date of Patent: August 3, 2004Assignee: General ElectricInventors: William Patrick Flanagan, Roger Neal Johnson, William Guy Morris
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Publication number: 20030149364Abstract: A method for generating an image of an object of interest includes acquiring a first three-dimensional dataset of the object at a first position using an X-ray source and a detector, acquiring a second three-dimensional dataset of the object at the first position using an ultrasound probe, and combining the first three-dimensional dataset and the second three-dimensional dataset to generate a three-dimensional image of the object.Type: ApplicationFiled: February 1, 2002Publication date: August 7, 2003Inventors: Ajay Kapur, Jeffrey Wayne Eberhard, Boris Yamrom, Kai E. Thomenius, Donald Joseph Buckley, Roger Neal Johnson, Reinhold F. Wirth, Oliver Astley, Beale Opsahl-Ong, Serge Louis Wilfrid Muller, Steve Karr
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Patent number: 6578251Abstract: A method of fabricating a motor-pump combination with the motor including a stator including a plurality of teeth extending between opposite stator end faces and a plurality of tooth tips defining a generally axial bore, the method including: forming a magnetic portion of a generally annular sleeve by compression molding a plurality of axially extending ferromagnetic strips using a plastic binder; forming a non magnetic portion of the annular sleeve by injection molding plastic material between adjacent ferromagnetic strips; molding a resin material casing member for the pump with the casing member having a generally annular cylindrical section and including the annular sleeve in part in the annular cylindrical section; and inserting the annular cylindrical section into the bore of the stator and aligning the ferromagnetic strips of the annular sleeve in abutting engagement with the tooth tips on the teeth of the stator.Type: GrantFiled: April 27, 2001Date of Patent: June 17, 2003Assignee: General Electric CompanyInventors: Gerald Burt Kliman, Roger Neal Johnson
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Publication number: 20030102630Abstract: The present invention provides an actuated seal assembly for controlling flow in a fluid path in turbomachinery comprising a seal and a seal carrier coupled to the seal. A displacement apparatus is coupled to the seal carrier for positioning the seal so as to control the flow in the fluid path. In addition, a drive system is provided for powering the displacement apparatus.Type: ApplicationFiled: December 5, 2001Publication date: June 5, 2003Applicant: General Electric CompanyInventors: Osman Saim Dinc, Norman Arnold Turnquist, Mehmet Demiroglu, Hamid Reza Sarshar, Ahmad Safi, Mahmut Faruk Aksit, Roger Neal Johnson, Anthony Holmes Furman, Imdad Imam, Gerald Burt Kliman, James Hopkins, Richard Robert Larsen, David Michael Prowse, Steven Wayne Russell
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Patent number: 6572828Abstract: The present invention is directed to a method and apparatus for rapid screening of potential reactants, catalysts, or associated process conditions. In one embodiment, the method includes the steps of providing a reaction substrate having at least one substrate reservoir and introducing a reactant system at least partially embodied in a liquid into the substrate reservoirs. The reactant system is heated to at least one predetermined temperature. A flow of inert gas is provided through a manifold above the substrate reservoir. The reaction in the substrate reservoir can be monitored, e.g., visually or spectrophotometrically during the course of the reaction, or the reaction substrate block can be rapidly cooled to stop the reaction in the substrate reservoir prior to analysis.Type: GrantFiled: July 3, 2000Date of Patent: June 3, 2003Assignee: General Electric CompanyInventors: Radislav Alexandrovich Potyrailo, John Patrick Lemmon, William Patrick Flanagan, Roger Neal Johnson
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Patent number: 6534891Abstract: An induction motor rotor comprises a rotor shaft, a rotor core, which may be solid or may include a plurality of rotor laminations, having rotor bar slots, a plurality of rotor bars extending through the rotor bar slots, and two rotor end rings brazed to the rotor bars and extending to the rotor shaft, the rotor bars and rotor end rings pre-stressing the rotor core.Type: GrantFiled: January 18, 2002Date of Patent: March 18, 2003Assignee: General Electric CompanyInventors: Gerald Burt Kliman, Raymond Alan White, Wen Liang Soong, Roger Neal Johnson, Joseph Eugene Miller, John Raymond Hughes
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Publication number: 20020153802Abstract: An induction motor rotor comprises a rotor shaft, a rotor core, which may be solid or may include a plurality of rotor laminations, having rotor bar slots, a plurality of rotor bars extending through the rotor bar slots, and two rotor end rings brazed to the rotor bars and extending to the rotor shaft, the rotor bars and rotor end rings pre-stressing the rotor core.Type: ApplicationFiled: January 18, 2002Publication date: October 24, 2002Inventors: Gerald Burt Kliman, Raymond Alan White, Wen Liang Soong, Roger Neal Johnson, Joseph Eugene Miller, John Raymond Hughes
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Patent number: 6345433Abstract: An induction motor rotor comprises a rotor shaft, a rotor core, which may be solid or may include a plurality of rotor laminations, having rotor bar slots, a plurality of rotor bars extending through the rotor bar slots, and two rotor end rings brazed to the rotor bars and extending to the rotor shaft, the rotor bars and rotor end rings pre-stressing the rotor core.Type: GrantFiled: October 3, 2000Date of Patent: February 12, 2002Assignee: General Electric CompanyInventors: Gerald Burt Kliman, Raymond Alan White, Wen Liang Soong, Roger Neal Johnson, Joseph Eugene Miller, John Raymond Hughes
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Publication number: 20010030475Abstract: A seal-less pump and electric motor assembly includes a motor rotor fixed to a driving shaft connected to an impeller in the pump assembly. The rotor and impeller are enclosed in a common housing such that the rotor rotates within any fluid being pumped by the impeller. The portion of the housing circumscribing the rotor includes a plurality of axially extending, circumferentially spaced strips of magnetic material penetrating through plastic material of the housing. Each of the strips coincide with corresponding ones of the pole teeth of a motor stator circumscribing the outer portion of the housing such that the strips in the housing act as extensions of the pole teeth. In one embodiment, the strips of magnetic material in the housing are formed by molding powdered iron in a plastic binder material. The strips are then placed in a mold in which the housing is formed by injecting plastic. The plastic binder in the strips melds with the injected plastic to form a continuous housing for enclosing the rotor.Type: ApplicationFiled: April 27, 2001Publication date: October 18, 2001Inventors: Gerald Burt Kliman, Roger Neal Johnson
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Patent number: 6193240Abstract: A seal assembly that seals a gap formed by a groove comprises a seal body, a biasing element, and a connection that connects the seal body to the biasing element to form the seal assembly. The seal assembly further comprises a concave-shaped center section and convex-shaped contact portions at each end of the seal body. The biasing element is formed from an elastic material and comprises a convex-shaped center section and concave-shaped biasing zones that are opposed to the convex-shaped contact portions. The biasing element is adapted to be compressed to change a width of the seal assembly from a first width to a second width that is smaller than the first width. In the compressed state, the seal assembly can be disposed in the groove. After release of the compressing force, the seal assembly expands. The contact portions will move toward a surface of the groove and the biasing zones will move into contact with another surface of the groove.Type: GrantFiled: January 11, 1999Date of Patent: February 27, 2001Assignee: General Electric CompanyInventors: Roger Neal Johnson, William David Longfritz
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Patent number: 6159305Abstract: An induction motor rotor comprises a rotor shaft (12), a rotor core (14), which may be solid (114) or may include a plurality of rotor laminations (13), having rotor bar slots (15), a plurality of rotor bars (16) extending through the rotor bar slots, and two rotor end rings (18) brazed to the rotor bars and extending to the rotor shaft, the rotor bars and rotor end rings pre-stressing the rotor core.Type: GrantFiled: July 14, 1998Date of Patent: December 12, 2000Assignee: General Electric CompanyInventors: Gerald Burt Kliman, Raymond Alan White, Wen Liang Soong, Roger Neal Johnson, Joseph Eugene Miller, John Raymond Hughes
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Patent number: 6141856Abstract: A rotor includes a shaft; a permanent magnet layer; and a retainer comprising a conductive, low magnetic permeability material bound to the rotor shaft. The permanent magnet layer is semi-restricted between the shaft and the retainer. In one embodiment, the magnet layer includes a molded ring magnet. In another embodiment, the magnet layer includes a plurality of magnet segments which can be situated on the rotor in rotor pockets or in a rotor cage. The bond between the retainer and the rotor can be enabled by a cap or by support elements. A high conductivity material can be situated over the retainer with the combination of the retainer and the high conductivity material having a resistivity high enough to minimize space harmonic losses and low enough to minimize time harmonic losses. The high conductivity material can also be applied to induction rotors for excluding high frequency components while permitting penetration of low frequency torque producing fields.Type: GrantFiled: May 4, 1998Date of Patent: November 7, 2000Assignee: General Electric CompanyInventors: Roger Neal Johnson, Gerald Burt Kliman, Yuefeng Liao, Wen Liang Soong
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Patent number: 6132182Abstract: A blower unit which, in one embodiment, includes an elongate main mounting member, a stator, a fan subassembly, and a blower housing, is described. In the one embodiment, the elongate main mounting member is the main structural member of the unit. The stator includes a stator core and stator windings, and the stator is secured to the main mounting member. The fan subassembly includes a rotor and a plurality of vanes. The rotor includes a substantially cylindrical iron ring and a magnetic portion having a substantially cylindrical shape. The magnetic portion is secured within the inner diameter of the iron ring and defines a rotor bore. The stator is located in the rotor bore and is concentric with respect to the rotor. The rotor is coupled to the plurality of vanes so that the vanes rotate with the rotor. The fan subassembly also includes bearing assemblies which are spring biased toward, and into rotatable engagement with, the elongate main mounting member.Type: GrantFiled: December 31, 1998Date of Patent: October 17, 2000Assignee: General Electric CompanyInventors: Khan Mohamed Khirullah Genghis Khan, Roger Neal Johnson, Thomas Merlin Jahns, Vijay Kumar Stokes, John Leo August, Jr., Harold Lown
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Patent number: 5893705Abstract: A blower unit includes an elongate main mounting member, a stator, a fan subassembly, and a blower housing. The elongate main mounting member is the main structural member of the unit. The stator includes a stator core and stator windings, and the stator is secured to the main mounting member. The fan subassembly includes a rotor and a plurality of vanes. The rotor includes a substantially cylindrical iron ring and a magnetic portion having a substantially cylindrical shape. The magnetic portion is secured within the inner diameter of the iron ring and defines a rotor bore. The stator is located in the rotor bore and is concentric with respect to the rotor. The rotor is coupled to the plurality of vanes so that the vanes rotate with the rotor. The fan subassembly also includes bearing assemblies which are spring biased towards, and into rotatable engagement with, the elongate main mounting member. The fan subassembly further includes a shroud for partially enclosing the plurality of vanes.Type: GrantFiled: December 13, 1996Date of Patent: April 13, 1999Assignee: General Electric CompanyInventors: Khan Mohamed Khirullah Genghis Khan, Roger Neal Johnson, Thomas Merlin Jahns, Vijay Kumar Stokes, John Leo August, Jr., Harold Lown
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Patent number: 5801470Abstract: A rotor includes a shaft; a permanent magnet layer; and a retainer comprising a conductive, low magnetic permeability material bound to the rotor shaft. The permanent magnet layer is semi-restricted between the shaft and the retainer. In one embodiment, the magnet layer includes a molded ring magnet. In another embodiment, the magnet layer includes a plurality of magnet segments which can be situated on the rotor in rotor pockets or in a rotor cage. The bond between the retainer and the rotor can be enabled by a cap or by support elements. A high conductivity material can be situated over the retainer with the combination of the retainer and the high conductivity material having a resistivity high enough to minimize space harmonic losses and low enough to minimize time harmonic losses. The high conductivity material can also be applied to induction rotors for excluding high frequency components while permitting penetration of low frequency torque producing fields.Type: GrantFiled: December 19, 1996Date of Patent: September 1, 1998Assignee: General Electric CompanyInventors: Roger Neal Johnson, Gerald Burt Kliman, Yuefeng Liao, Wen Liang Soong
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Patent number: 5720190Abstract: A transmission for driving an agitator in a washing machine includes a housing, an input shaft for being driven by a motor, and an output shaft for driving the agitator. The input shaft includes a crank disposed in the housing, and the output shaft includes a pinion disposed in the housing adjacent to the crank. A yoke is slidably mounted in the housing between the crank and pinion, and includes a rack operatively engaging the pinion along a pitchline, and a slot having a slot axis disposed perpendicularly to the pitchline which receives therein a slider rotatably joined to the crank. Rotation of the crank sinusoidally reciprocates the rack as the slider reciprocates in the slot, and reciprocation of the rack sinusoidally oscillates the pinion for driving the output shaft with minimum peak torque and drive power.Type: GrantFiled: December 17, 1996Date of Patent: February 24, 1998Assignee: General Electric CompanyInventors: Roger Neal Johnson, Sudhir Dattatraya Savkar, Robert Elmer Sundell