Patents by Inventor Ulf J. Jonsson

Ulf J. Jonsson 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: 9278755
    Abstract: A rotor blade assembly includes a rotor blade including one or more pockets and a housing located on the rotor blade within one or more pockets. The housing is secured to the rotor blade via one or more dovetail joints. A drive mechanism for a control surface of a rotor blade includes an actuator and a rocker operably connected to the actuator. At least one hinge rod is operably connected to the rocker and operably connected to a control surface at a control surface pivot. The drive mechanism translates substantially linear motion of the actuator into rotational motion of the control surface about the control surface pivot.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: March 8, 2016
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Claude G. Matalanis, Andrzej Ernest Kuczek, Zaffir A. Chaudhry, Brian E. Wake, Vijaya Ramaraju Lakamraju, Alan Matthew Finn, Fanping Sun, Ulf J. Jonsson
  • Publication number: 20160054040
    Abstract: A compressor (22) has a housing assembly (40) with a suction port (24), a discharge port (26), and a motor compartment (60). An electric motor (42) has a stator (62) within the motor compartment and a rotor (64) within the stator. The rotor is mounted for rotation about a rotor axis (500). One or more working impellers (44) are coupled to the rotor to be driven by the rotor in at least a first condition so as to draw fluid in through the suction port and discharge the fluid from the discharge port. An inlet guide vane (IGV) array (174) is between the suction port (24) and the one or more impellers (44). One or more bearings (66, 68) support the rotor (64) and/or the one or more impellers (44). A purge unit (400) has a vapor inlet line (410) for receiving a refrigerant flow and a return line (414, 417A, 417B) for returning a contaminant-depleted refrigerant flow. A supply flowpath (407A, 407B) for supplying refrigerant to the bearings extends from the purge unit.
    Type: Application
    Filed: April 15, 2014
    Publication date: February 25, 2016
    Applicant: Carrier Corporation
    Inventors: Ulf J. Jonsson, Vishnu M. Sishtla, Zaffir A. Chaudhry
  • Publication number: 20160048673
    Abstract: Embodiments are directed to simulating an operation of a mechanical lock in an electronic context, comprising: applying a contactless wireless credential to a lock, authenticating the credential, unlocking the lock to provide access to a resource protected by the lock based on having authenticated the credential, determining a security level associated with the lock, and conditionally capturing the credential based on the security level.
    Type: Application
    Filed: March 20, 2014
    Publication date: February 18, 2016
    Inventors: Alan Marchiori, Ulf J. Jonsson, Vijaya Ramaraju Lakamraju, Nicholas Charles Soldner, Ritesh Khire, Joseph Zacchio, Adam Kuenzi, Ron Chapin
  • Publication number: 20160047575
    Abstract: A vapor compression system (20) comprises a compressor (22) having one or more bearing systems (66, 68) supporting a rotor and/or one or more working elements (44). One or more bearing feed passages (114) are coupled to the bearings to pass fluid along a supply flowpath to the bearings. A mechanical pump (130; 330) is positioned to drive fluid along the supply flowpath. An ejector (140, 150) has a motive flow inlet (142, 152) coupled to the mechanical pump to receive refrigerant from the mechanical pump.
    Type: Application
    Filed: January 27, 2014
    Publication date: February 18, 2016
    Applicant: Carrier Corporation
    Inventors: Ulf J. JONSSON, Vishnu M. SISHTLA, Zaffir A. CHAUDHRY
  • Publication number: 20160040915
    Abstract: A compressor (22) has a housing assembly (40) with a suction port (24), a discharge port (26), and a motor compartment (60). An electric motor (42) has a stator (62) within the motor compartment and a rotor (64) within the stator. The rotor is mounted for rotation about a rotor axis (500). One or more working impellers (44) are coupled to the rotor to be driven by the rotor in at least a first condition so as to draw fluid in through the suction port and discharge the fluid from the discharge port. An inlet guide vane (IGV) array (174) is between the suction port (24) and the one or more impellers (44). One or more bearing systems (66, 68) support the rotor (64) and/or the one or more impellers (44). One or more main drain passages (120, 234 206; 120, 232, 202, 206) are coupled to the bearings to pass fluid along a drain flowpath from the bearings to a location (172) upstream of the impeller and downstream of the IGV array.
    Type: Application
    Filed: February 19, 2014
    Publication date: February 11, 2016
    Applicant: CARRIER CORPORATION
    Inventors: Ulf J. Jonsson, Vishnu M. Sishtla, Zaffir A. Chaudhry
  • Publication number: 20160017639
    Abstract: A lock core for a lock assembly is provided including a housing having a first end. An operating member is configured to move between a retracted position and an extended position. When the operating member is in the retracted position, the operating member is at least partially recessed within the housing. A control member is arranged within the housing and is configured to selectively limit movement of the operating member between the retracted position and the extended position. The control member is operably coupled to the controller via an actuator.
    Type: Application
    Filed: February 25, 2014
    Publication date: January 21, 2016
    Inventors: Lawrence Binek, Ritesh Khire, Andrzej Ernest Kuczek, Ulf J. Jonsson, Vijaya Ramaraju Lakamraju, Adam Kuenzi, Wayne Floyd Larson, Matthew S. Hill
  • Patent number: 9234522
    Abstract: A turbomachine includes a housing and a rotatable shaft, where at least a portion of the rotatable shaft is located in the housing. The turbomachine also includes a magnetic thrust bearing that axially positions the rotatable shaft and a radial bearing that centers the rotatable shaft. The turbomachine includes a flexure including a first portion secured to the housing and a second portion axially moveable relative to the first portion. The second portion of the flexure is connected to the radial bearing, and the second portion moves axially to eliminate thrust loads on the radial bearing and allow the magnetic thrust bearing to carry axial loads.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: January 12, 2016
    Assignee: United Technologies Corporation
    Inventors: Ulf J. Jonsson, Bruce P. Biederman, Frederick J. Cogswell
  • Patent number: 9217264
    Abstract: A clutch for an electronic door lock includes a primary mover, a pivotal pawl, a first shaft, and a second shaft. The second shaft is axially co-aligned with the first shaft and is rotatably mounted adjacent the rotatable first shaft. The primary mover is selectively actuatable to engage the pawl such that rotation of the first shaft relative to the second shaft by a user pivots the pawl into coupling engagement between the first shaft and the second shaft.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: December 22, 2015
    Assignee: UTC FIRE & SECURITY CORPORATION
    Inventors: John M. Milton-Benoit, Ulf J. Jonsson, Robert H. Dold, Fanping Sun, Zaffir A. Chaudhry
  • Patent number: 8893520
    Abstract: A refrigeration device containing CO2 a refrigerant to be circulated, including a compressor, a heat-rejecting heat exchanger, an expansion, and an evaporator which are connected to one another. The refrigeration device includes a first portion and a second portion, the second portion having a higher temperature relative to the first portion when the refrigeration device is in operation. A heat-reclaim heat exchanger is provided at a given location in the second portion, provided to transfer heat to a fluid for further use as a source of heated fluid.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: November 25, 2014
    Assignee: Carrier Corporation
    Inventors: Bernd Heinbokel, Siegfried Haaf, Neelkanth S. Gupte, Ulf J. Jonsson, Tobias H. Sienel
  • Patent number: 8889277
    Abstract: An assembly for preventing a fire resulting from the outgassing of a lithium battery in an electronic door lock includes a lithium battery, a circuit board, and a thermal insulation. The lithium battery and circuit board are housed within the electronic door lock. The thermal insulation is arranged between a door interfacing side of the electronic door lock and either or both of the circuit board and lithium battery. Another thermal management technique for preventing fire resulting from the outgassing of a lithium battery in an electronic door lock is achieved by using a battery cover that is selectively movable away from the circuit board or ignition source in response to temperature rise to ensure the lithium battery does not reach a critical temperature that may cause outgassing in close proximity to the ignition source.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: November 18, 2014
    Assignee: UTC Fire & Security Corporation
    Inventors: Vijaya Ramaraju Lakamraju, Jean Yamanis, Ulf J. Jonsson, Ritesh Khire, John M. Milton-Benoit, Jinliang Wang
  • Patent number: 8769952
    Abstract: A method and system for recovering oil is used in an organic rankine cycle (ORC) system to recover oil from an evaporator of the ORC system and return the oil to an oil sump. The ORC system includes an evaporator, a turbine, a condenser and a pump, and is configured to circulate a refrigerant through the ORC system. The oil recovery system includes a recovery line configured to remove a mixture of oil and refrigerant from the evaporator. The mixture of oil and refrigerant passes through a heat exchanger in order to vaporize liquid refrigerant in the mixture and produce a mixture of oil and vaporized refrigerant. A delivery line is configured to deliver the mixture of oil and vaporized refrigerant to the turbine, at which point the oil may be separated from the vaporized refrigerant and recycled back to the oil sump.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: July 8, 2014
    Assignee: United Technologies Corporation
    Inventors: Frederick J. Cogswell, Ulf J. Jonsson, Bruce P. Biederman, Peter S. Matteson, Michael D. Arner
  • Patent number: 8702133
    Abstract: An actuator for an electronic door lock includes a stationary first magnet assembly, a beam, and a second magnet assembly. The first magnet includes at least one magnet stationarily positioned within the electronic door lock. The beam is movable relative to the first magnet assembly to a first position and a second position. The second magnet assembly is connected to the beam and is configured to be magnetically repulsed away from the first magnet assembly. The repulsion of the second magnet assembly maintains the beam in either the first or second position until the beam is selectively actuated therefrom.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: April 22, 2014
    Assignee: UTC Fire & Security Corporation
    Inventors: Fanping Sun, Zaffir A. Chaudhry, Ulf J. Jonsson, John M. Milton-Benoit, Kitty P. Liu
  • Patent number: 8690443
    Abstract: A mechanical system for high acceleration loading includes a mechanical element configured for rotational movement in a high acceleration environment. The mechanical element possesses a first density. A lubricant having a second density is disposed about the mechanical element. The first and second densities are substantially identical such that the mechanical element is substantially neutrally buoyant in the lubricant.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: April 8, 2014
    Assignee: Sikorsky Aircraft Corporation
    Inventors: Ulf J. Jonsson, Michael F. Mullen
  • Patent number: 8672627
    Abstract: A helicopter rotor blade having a blade body that defines a confined space and a control flap that is secured to the blade body that moves through a range of motion. An electric machine is secured inside of the rotor blade body that rotates a motor shaft. A transmission device is secured to the motor shaft and the control flap that transfers rotary motion of the motor shaft to the control flap to generate movement of the control flap through its range of motion. The transmission device remains substantially within the confined space throughout the range of motion.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: March 18, 2014
    Assignee: Sikorsky Aircraft Corporation
    Inventors: Jimmy Lih-Min Yeh, Fanping Sun, Zaffir A. Chaudhry, Robert H. Dold, Ulf J. Jonsson, Brian E. Wake, Michael G. O'Callaghan
  • Publication number: 20130320782
    Abstract: An electromechanical rotary actuator including a housing including first end that extends to a second end through an intermediate portion that defines a longitudinal axis, and an internal cavity. An electric motor is arranged within the internal cavity. The electric motor includes a shaft having first shaft end and a second shaft end. A drive member is arranged within the housing along the longitudinal axis. The drive member includes an input shaft operatively coupled to the first shaft end and an output shaft. An output shaft member is coupled to the output shaft of the drive member. At least one bearing assembly supports one of the output shaft member and the first shaft end, and a preload member is arranged within the housing and configured to apply a compressive axial force to the at least one bearing, the drive member and the electric motor.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 5, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Claude G. Matalanis, Andrzej Ernest Kuczek, Ulf J. Jonsson, Brian E. Wake, Zaffir A. Chaudhry, Paul Brewer
  • Publication number: 20130292143
    Abstract: An exemplary fire suppression system includes a sprinkler nozzle. At least one conduit is connected to the nozzle for delivering a fire suppression fluid to the nozzle. The conduit and the nozzle establish a discharge path. A pneumatically driven pump is connected with the conduit for pumping fluid into the conduit. A gas source provides pressurized gas to the pump for driving the pump. The gas source also provides gas to the discharge path for achieving a desired discharge of the fluid from the nozzle.
    Type: Application
    Filed: December 30, 2010
    Publication date: November 7, 2013
    Applicant: UTC FIRE & SECURITY CORPORATION
    Inventors: Bryan Robert Siewert, Ulf J. Jonsson, Mike Lindsay
  • Patent number: 8561443
    Abstract: A clutch for an electronic door lock includes a first shaft, a second shaft, a spring, a rheological fluid, and a plunger. The second shaft has an aperture therein and is axially co-aligned with the first shaft and is rotatably mounted adjacent the rotatable first shaft. The spring is disposed in the aperture in the second shaft. The rheological fluid is held within the aperture and is capable of changing viscosities in response to the application of an electrical current across the fluid. The plunger is biased by the spring into selective coupling engagement with the first shaft and is capable of selective motion into the aperture in response to contact by a camming surface of the first shaft due to relative rotation of the first shaft with respect to the second shaft.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: October 22, 2013
    Assignee: UTC Fire & Security Corporation
    Inventors: Fanping Sun, Zaffir A. Chaudhry, John M. Milton-Benoit, Ulf J. Jonsson
  • Publication number: 20130170943
    Abstract: A turbomachine includes a housing and a rotatable shaft, where at least a portion of the rotatable shaft is located in the housing. The turbomachine also includes a magnetic thrust bearing that axially positions the rotatable shaft and a radial bearing that centers the rotatable shaft. The turbomachine includes a flexure including a first portion secured to the housing and a second portion axially moveable relative to the first portion. The second portion of the flexure is connected to the radial bearing, and the second portion moves axially to eliminate thrust loads on the radial bearing and allow the magnetic thrust bearing to carry axial loads.
    Type: Application
    Filed: January 3, 2012
    Publication date: July 4, 2013
    Inventors: Ulf J. Jonsson, Bruce P. Biederman, Frederick J. Cogswell
  • Publication number: 20120299311
    Abstract: A system for producing power using an organic Rankine cycle (ORC) includes a turbine, a generator, an evaporator, an electric heater, an inverter system and an organic Rankine cycle (ORC) voltage regulator. The turbine is coupled to the generator for producing electric power. The evaporator is upstream of the turbine and the electric heater is upstream of the evaporator. The evaporator provides a vaporized organic fluid to the turbine. The electric heater heats the organic fluid prior to the evaporator. The inverter system is coupled to the generator. The inverter system transfers electric power from the generator to a load. The ORC voltage regulator is coupled to the inverter system and to the electric heater and it diverts excess electrical power from the inverter system to the electric heater.
    Type: Application
    Filed: January 27, 2010
    Publication date: November 29, 2012
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Bruce P. Biederman, Frederick J. Cogswell, Ulf J. Jonsson, Robert K. Thornton
  • Publication number: 20120207602
    Abstract: A rotor blade assembly includes a rotor blade including one or more pockets and a housing located on the rotor blade within one or more pockets. The housing is secured to the rotor blade via one or more dovetail joints. A drive mechanism for a control surface of a rotor blade includes an actuator and a rocker operably connected to the actuator. At least one hinge rod is operably connected to the rocker and operably connected to a control surface at a control surface pivot. The drive mechanism translates substantially linear motion of the actuator into rotational motion of the control surface about the control surface pivot.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 16, 2012
    Applicant: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Claude G. Matalanis, Andrzej Ernest Kuczek, Zaffir A. Chaudhry, Brian E. Wake, Vijaya Ramaraju Lakamraju, Alan Matthew Finn, Fanping Sun, Ulf J. Jonsson