Patents Assigned to Hamilton
  • Patent number: 7481153
    Abstract: A toaster for heating a food stuff to a selected shade, includes a housing having at least one wall, at least one heating chamber within the housing for receiving the food stuff to be heated and at least one heating element for heating the food stuff in the heating chamber. A window is provided in the wall and a control knob is provided for controlling the time period that the food stuff is heated. The control knob is rotatable between a first end position at which the food stuff is heated for a short time period to provide a light food stuff shade, a second end position at which the food stuff is heated for a long time period to provide a dark food stuff shade and a plurality of intermediary positions between the first and second end positions it which the food stuff is heated for a selected time period between the short and long time periods to provide a food stuff shade between light and dark.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: January 27, 2009
    Assignee: Hamilton Beach Brands, Inc.
    Inventors: John D. Barnes, Martin Patrick Brady
  • Patent number: 7481155
    Abstract: A fruit and vegetable juice extractor for extracting juice includes a grating disc rotatable about a substantially vertical axis. A frustoconically shaped filter is attached to the outer periphery of the grating disc and projects upwardly and outwardly thereof. A food chute is arranged above the grating disc and the filter. The food chute includes a rib extending at least partially in the axial direction and projecting radially inwardly. A food pusher is insertable into the food chute.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: January 27, 2009
    Assignee: Hamilton Beach Brands, Inc.
    Inventor: Atle Larsen
  • Publication number: 20090021208
    Abstract: A controller continually updates rotor time constant estimation of an induction machine by interrogating the induction machine with a small signal oscillation and monitoring the response. The small signal oscillation is injected onto the d-axis current command signal, and is generated at a frequency that represents the most recent estimate of the rotor time constant (i.e., rotor time constant equal the inverse of the frequency). The controller monitors rotor flux generated in response to the small signal oscillation, and updates the most recent estimate of the rotor time constant based on the monitored rotor flux. This process is repeated continuously to allow for the continuous updating of the rotor time constant.
    Type: Application
    Filed: July 19, 2007
    Publication date: January 22, 2009
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Charles J. Romenesko, Vijay K. Maddali
  • Publication number: 20090024008
    Abstract: The invention relates to a method for acquiring several changing values and representing the acquired values on a monitoring screen, as well as to a device with a screen in order, on this, to represent changing values acquired during ventilation of the patient. The device comprises means for acquiring at least three changing values of different origin, and means for representing the values, which permit the acquired values to be qualitatively represented on the screen together in a single graphic element. This graphic element has a pictorial representation of a lung shape. The invention is characterised in that the means for representing the values are designed such that a volume change of the ventilated lung which is detected within each breath, is represented in an animated manner by way of size change of the lung shape corresponding to this corresponding volume change.
    Type: Application
    Filed: January 30, 2007
    Publication date: January 22, 2009
    Applicant: HAMILTON MEDICAL AG
    Inventors: Josef Brunner, Marc Wysocki, Ivo Mettier
  • Patent number: 7479746
    Abstract: An electric engine starting system includes a permanent magnet motor that is used to start the engine and then to generate power for powering a load while the engine is running. A disclosed system includes a first phase controlled rectifier in series with a power converter and a second phase controlled rectifier. During an engine starting operation, the first phase controlled rectifier is switched to couple the permanent magnet motor to a power source for starting the engine. Once the engine is running, the first phase controlled rectifier is switched off and the second phase controlled rectifier is switched on. The second phase control rectifier converts variable AC power from the motor into DC power. The power converter converts the DC power into an appropriate power for driving the load. One disclosed example includes a filter between the power converter and the load to ensure that the load receives a selected quality of power.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: January 20, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Gregory I. Rozman, Richard J. Lapointe, Douglas A. Parsons
  • Patent number: 7479295
    Abstract: A toaster including a housing with a toasting compartment, a heater located in the housing, a food cage movably supported in the toasting compartment for movement between a gripping position and a receiving position and a carriage movably supported in the housing. The carriage is permitted movement between a toasting position adjacent a lower portion of the toasting compartment and a loading position adjacent an upper portion of the toasting compartment. The carriage may receive and support a food item to be toasted in the loading position. The food cage is positioned in the receiving position when the carriage is positioned in the loading position and is positioned in the gripping position when the carriage is positioned in the toasting position. The food cage is urged toward the gripping position by gravitational forces as the carriage moves toward the toasting position.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: January 20, 2009
    Assignee: Hamilton Beach Brands, Inc.
    Inventor: Nhiem Viet Nguyen
  • Patent number: 7475549
    Abstract: A thermal management system for a gas turbine engine includes a cooling airflow which enters through an air filter portion of a forward cover for filtration of particulate which may result in FOD to a rotational system of the engine. Filtered cooling airflow flows along a rotor shaft over and through a forward bearing, over and through a permanent magnet generator, then over and through an aft bearing to provide thermal management. Commensurate therewith, the cooling airflow atomizes and communicates a lubricant to the bearings. From the aft bearing, the cooling airflow merges with a primary airflow path from an intake which generally surrounds the forward cover.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: January 13, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Eric Alexander, Gordon Jewess, Patrick Lydon, Tammy Lane
  • Publication number: 20090007915
    Abstract: The invention relates to a device, with which one is to prevent a patient who breathes on Ms own and who desires a lower CO2-partial-pressure than is achieved by the set Ventilation from tiring. It comprises the following means for the regulation of a changing intensity of a mechanical Ventilation: • means for determining a target frequency RRsp, • means for determining a spontaneous frequency RRspont • means for comparing the spontaneous frequency RRspont with the target frequency RRsp. wherein adapting a Ventilation target value (% MinVol, V?gAsp) on account of the result of the comparison of the spontaneous frequency RRspont with the target frequency RRsp and • means for adapting the parameters determining the intensity of the Ventilation, on account of the Ventilation target value (% MinVol, V?gAsp). This so-called pump support System (PSS) is activated (PSS on) when the patient breathes in an adequately spontaneous manner (Criterion 1).
    Type: Application
    Filed: January 30, 2007
    Publication date: January 8, 2009
    Applicant: Hamilton Medical AG
    Inventors: Josef Brunner, Marc Wysocki, Thomas Laubscher
  • Publication number: 20090009129
    Abstract: A generator control unit (GCU) provides active damping of a synchronous generator by monitoring the speed of the synchronous generator and detecting oscillations in the monitored speed. The oscillations are indicative of torsional oscillations within the mechanical drivetrain including the synchronous generator or generators. In response to detected oscillations in the monitored speed, the GCU generates a varying set-point value that is used to control the excitation voltage provided to the synchronous generator. Varying the excitation voltage provided to the synchronous generator causes a variation in synchronous generator torque. By selectively varying the torque in the synchronous generator, the GCU provides active damping in the synchronous generator that decreases or dampens the torsional oscillations.
    Type: Application
    Filed: July 2, 2007
    Publication date: January 8, 2009
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Albert L. Markunas, Vijay K. Maddali
  • Patent number: 7472547
    Abstract: A hydraulic differential with a variable displacement hydraulic unit of the axial piston type, a fixed displacement hydraulic unit of the axial piston type, a stationary housing for mounting the hydraulic units, an input shaft for coupling to a variable speed power source and an output shaft for coupling to a constant speed load, comprises: a wobbler and a port plate for the variable displacement hydraulic unit coupled to the stationary housing; an axial block and piston set for the variable displacement hydraulic unit, a port plate for the fixed displacement hydraulic unit and a wobbler for the fixed displacement hydraulic unit coupled to the input shaft; and an axial block and piston set for the fixed displacement hydraulic unit coupled to the output shaft; wherein the variable displacement hydraulic unit port plate and the fixed displacement hydraulic unit port plate couple together through a circumferential interface to minimise hydraulic thrust forces developed by the hydraulic unit.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: January 6, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Andrew P Grosskopf, Magdy A Kandil, Glenn C. Lemmers, David S. Behling
  • Patent number: 7473049
    Abstract: A shaft assembly includes a metallic portion and a ceramic portion. In a disclosed example, a ceramic shaft has a generally conical end that is at least partially received within a generally conical recess in one end of a metallic shaft. The recess has a first portion that has an inner surface that is received directly against a corresponding outer surface on a section of the ceramic shaft conical portion. A second portion of the recess is radially spaced from the ceramic shaft and provides a controlled gap within which a braze alloy is maintained. In one example, the second portion has an axial length that is more than twice a radial depth of the second portion. In another example, a transition surface between the first and second portions of the recess has a linear profile.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: January 6, 2009
    Assignee: Hamilton Sundstrand
    Inventors: John E. Holowczak, Constance Bird, Gary E. Sanders, Anthony F. Giamei, Robert Telakowski, Edward Allen Rothman
  • Publication number: 20080314385
    Abstract: The invention relates to a device for the regulation of PEEP and FiO2 of a ventilator for achieving an arterial oxygen partial pressure in the blood of a mechanically ventilated patient. At reading which is representative of the success of the oxygen supply, i.e. the oxygen saturation of the blood is measured with the device, and assigned to one of three regions, which are defined by two characteristic lines. A first control loop is designed to optimise PEEP and FiO2 on assigning a reading to a region which demands a change of the settings, or to retaining the settings with an assignment to the normal region between the characteristic lines. This first control loop carries out such an optimisation at predefined temporal intervals on account of the representative reading (SaO2REP) and a predefined necessary supply intensity. The ventilator is subsequently activated accordingly.
    Type: Application
    Filed: January 30, 2007
    Publication date: December 25, 2008
    Applicant: HAMILTON MEDICAL AG
    Inventors: Josef Brunner, Marc Wysocki, Thomas Laubscher
  • Patent number: 7466045
    Abstract: An in-shaft cryogenic cooler mounts entirely within the shaft of a dynamoelectric machine that has a rotor comprising a high temperature superconductor.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: December 16, 2008
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Michael J. Andres
  • Patent number: 7466088
    Abstract: A controller estimates a motor position. The controller includes a driver and an injector. The driver generates a fundamental control signal. The injector generates a position carrier voltage that superimposed on the fundamental control signal. The injector alters the magnitude of the carrier voltage signal in response to the corresponding amplitude of the fundamental control signal. In a disclosed example, the injector increases the carrier voltage signal magnitude as the fundamental control current signal approaches a zero crossing. The injector then gradually decreases the carrier voltage signal magnitude as the fundamental control current signal magnitude increases from zero.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: December 16, 2008
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Charles J. Romenesko, Vijay Maddali
  • Publication number: 20080304962
    Abstract: A wind turbine assembly with a driving device for raising and lowering a wind turbine between a lower end and an upper end of a wind turbine tower comprises a guide member extending longitudinally along the outer surface of the tower, a sleeve member coupled to the wind turbine, and means for raising and lowering the sleeve member between the upper end and the lower end of the tower along the guide member. The sleeve member has an inner diameter that is larger than an outer diameter of the tower, and is slidably coupled to the tower. The sleeve member also includes a slot configured to engage with the guide member.
    Type: Application
    Filed: August 12, 2008
    Publication date: December 11, 2008
    Applicant: Hamilton Sundstrand Corporation
    Inventor: David V. Arel
  • Patent number: 7461586
    Abstract: A hot beverage maker has a stand, fresh water chamber, a brewed beverage tank, and an actuator means for dispensing brewed beverages. The tank includes a filter basket, a reservoir portion, and an outlet port. The reservoir portion is adapted to hold a brewed liquid, and the outlet port is positioned in substantially the bottom of the reservoir portion. The dispenser actuator means is connected to the outlet port and is biased to a closed position, but may be moved to an open position by a vessel for holding a hot beverage. The dispenser actuator includes a plug that further includes a stem and a seal ring mounted on the stem. The bottom of the stem has a substantially inverted conical shape.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: December 9, 2008
    Assignee: Hamilton Beach Brands, Inc.
    Inventors: Michael Garman, Stephen C. Williamson
  • Publication number: 20080298169
    Abstract: A mixing device configured for shipment and/or storage includes a base housing at least one motor, a jar removably mountable to the base in an operating configuration for containing foodstuff, and a blade assembly loosely positioned in the jar. The blade assembly has a first surface and an opposing second surface. The second surface of the blade assembly operatively engages that at least one motor in the operating configuration. The device further includes a blending tool operatively connected to the first surface of the blade assembly and an enclosure removably mountable to the first surface of the blade assembly to enclose the blending tool.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 4, 2008
    Applicant: Hamilton Beach Brands, Inc.
    Inventors: Benjamin Henry Branson, III, Derek Hassell
  • Patent number: D582204
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: December 9, 2008
    Assignee: Hamilton Beach Brands, Inc.
    Inventor: Michael Garman
  • Patent number: D583184
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: December 23, 2008
    Assignee: Hamilton Beach Brands, Inc.
    Inventor: Derwood Delong
  • Patent number: D585617
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: January 27, 2009
    Assignee: Hamilton Beach Brands, Inc.
    Inventor: Michael S. Garman