Patents Assigned to Hamilton
  • Patent number: 7600417
    Abstract: A fuel delivery system uses a volumetric flow sensor and a densiometer to measure a mass flow rate of the fuel. A densiometer may be a coriolis mass flow sensor etched into a small circuit chip. As fuel flows past the densiometer a density of the fuel and characteristic slope as a function of temperature is determined. At least one temperature sensor is also located on the circuit chip to provide accurate temperature of the fuel to correspond to the fuel density reading. Piezoelectric crystals in the volumetric flow sensor generate and receive a sound wave. By analyzing the sound wave signals the volumetric flow rate of fluid through the volumetric flow sensor can be calculated. At least one temperature sensor is also placed on the volumetric flow sensor to correct for any thermal expansion of an inner diameter of the volumetric flow sensor and for final mass flow calculation.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: October 13, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Bruce Paradise
  • Publication number: 20090251112
    Abstract: A permanent magnet (PM) electric generator with directly controllable field excitation control comprises: a drive shaft; a PM rotor assembly with multiple PMs arranged around an outer axial periphery of the rotor assembly; a stator assembly comprising a ferromagnetic stator yoke, multiple ferromagnetic stator teeth mounted to the stator yoke with distal ends proximate the outer axial periphery of the rotor assembly separated by an air gap and multiple stator coils mounted between the stator teeth; multiple saturable ferromagnetic shunts, each shunt coupling adjacent distal ends of the stator teeth to shunt air gap magnetic flux ?g generated by the PMs across the air gap through the distal ends of the stator teeth; and multiple saturation control coils, each saturation control coil wrapped about a saturable region of an associated one of the shunts; wherein application of a control current Ic to the control coils at least partially magnetically saturates the shunts to reduce shunting of air gap magnetic flux ?
    Type: Application
    Filed: April 2, 2008
    Publication date: October 8, 2009
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Jacek F. Gieras, Gregory I. Rozman
  • Publication number: 20090251020
    Abstract: A permanent magnet (PM) dynamoelectric machine with directly controllable field excitation control comprises: a drive shaft; a PM rotor assembly with multiple PMs arranged around an outer axial periphery of the rotor assembly; a stator assembly comprising a ferromagnetic stator yoke, multiple ferromagnetic stator teeth mounted to the stator yoke with distal ends proximate the outer axial periphery of the rotor assembly separated by an air gap and multiple stator coils mounted between the stator teeth; multiple saturable ferromagnetic shunts, each shunt coupling adjacent distal ends of the stator teeth to shunt air gap magnetic flux ?g generated by the PMs across the air gap through the distal ends of the stator teeth; and multiple saturation control coils, each saturation control coil wrapped about a saturable region of an associated one of the shunts; wherein application of a control current Ic to the control coils at least partially magnetically saturates the shunts to reduce shunting of air gap magnetic fl
    Type: Application
    Filed: April 2, 2008
    Publication date: October 8, 2009
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Jacek F. Gieras, Gregory I. Rozman
  • Patent number: 7597000
    Abstract: A top reading liquid sight level indicator mounts above a liquid contained in a liquid vessel comprises a measuring surface mounted to the liquid vessel that penetrates an upper surface of the contained liquid at a cant from normal to the liquid surface so that the points along the measuring surface that penetrate the liquid surface are visible from above the liquid vessel and represent the level of the liquid in the liquid vessel.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: October 6, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Melissa A. Bell, Christine Ingrid Schade, Chris R. Fidler
  • Publication number: 20090241594
    Abstract: A valve comprises an inlet portion configured to couple to a source of a fluid, and a body portion in fluidic communication with the inlet portion. The body portion defines a modulated flow path and a constant flow path adjacent to the modulated flow path.
    Type: Application
    Filed: August 28, 2006
    Publication date: October 1, 2009
    Applicant: Hamilton Sundstrand Corporation
    Inventor: Peter Bizzarro
  • Patent number: 7591438
    Abstract: An ice shaver/blender control apparatus and method includes monitoring the operation of a blender motor as a measure of monitoring the quality and results of blending. By connecting a feedback sensor to the motor, it is possible to determine whether a blend process is complete. It is also possible to identify when cavitation is occurring or about to occur. In another aspect, the blender controls are directed to an improved method for portion blending. The method includes a two-step query to the user to determine both a predetermined portion size and the number of portions to be blended.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: September 22, 2009
    Assignee: Hamilton Beach Brands, Inc.
    Inventors: John Robert Bohannon, Jr., Brian Paul Williams
  • Patent number: 7592784
    Abstract: An electrical power generator includes a controller for making a full power capacity of the generator available for consumption by at least one intelligent load coupled to an output of the generator. The controller obtains data from which both a present output power of the generator and a power capacity of the generator can be determined. The controller then provides the intelligent load with data indicative of both the present output power and the power capacity of the generator for use by the load in controlling its power consumption.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: September 22, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Wei Wei Qi, Michael Rubbo, Richard Wainwright
  • Publication number: 20090231961
    Abstract: Timepiece, particularly of the wristwatch (1) type, forming a navigational aid for aviators or navigators, characterized in that it includes at least two concentric bezels (38, 46), at least one (46) of which rotates, one of said bezels (46) bearing first indications (48) corresponding to the speed of an aircraft, or respectively a boat, and the other (38) bearing indications (50) relating to the heading correction to be applied in the event of a crosswind, a nomogram (58) for the heading correction calculation being added to the back of the watch (1) or to a separate card.
    Type: Application
    Filed: November 8, 2005
    Publication date: September 17, 2009
    Applicant: HAMILTON INTERNATIONAL LTD.
    Inventor: Hakim El Kadiri
  • Publication number: 20090229418
    Abstract: A device for removing an enclosure from a container includes a housing at least partially enclosing at least one reversible motor and at least two spaced-apart cams. The cams are rotatable in a first rotational direction in which the cams grasp the container and in a second rotational direction in which the cams are rotated a predetermined distance away from the container. A wrench disk is operatively connected to and rotatable by the at least one motor. At least two spaced-apart wrenches are pivotally attached to the wrench disk for removably grasping the enclosure. Operation of the motor in a first direction rotates the wrench disk in a first rotational direction causing the wrenches to grasp and rotate the enclosure relative to the container. Operation of the motor in a second direction rotates the wrench disk in a second rotational direction causing the wrenches to rotate a predetermined distance away from the enclosure.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 17, 2009
    Applicant: Hamilton Beach Brands, Inc.
    Inventors: Michael GARMAN, George W. STAMPER, III, Brandon SONG, Robert H. ROTH, Ken HOGUE, Bob BEST
  • Publication number: 20090230134
    Abstract: A cooking vessel for cooking foodstuff includes a base that has an outer sidewall, a generally hollow interior and a generally open top. A lid is removably mounted to the base and complementarily covers the open top of the base in a first position. The lid includes a handle that extends outwardly from the lid away from the base in the first position. A lid holder is rotatably mounted to the outer sidewall of the base. The lid holder engages with the handle to support the lid in a second position. The open top of the base at least partially exposes the hollow interior when the lid is in the second position. The lid holder is rotatable between a support position and a storage position. The lid holder extends partially above the open top of the base in the support position and is entirely below the open top in the storage position.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 17, 2009
    Applicant: HAMILTON BEACH BRANDS, INC.
    Inventor: Mark K. Romandy
  • Patent number: 7586224
    Abstract: A rectifier assembly includes individual diodes arranged to form a full-wave bridge such that the silicon wafers of the diodes are loaded in compression. As so arranged, the centrifugal forces add to the compression forces on the diodes and on the electrical contacts therewith. The three-phase (AC) input conductors are connected by conductive straps which connect the diodes through to DC (+/?) terminal ring outputs. One surface of each of the diodes is in electrical contact with a conductive strap which then connects with the individual (AC) phases of an exciter rotor winding. The opposing surface of the diode contacts the ring diode pad on either the DC (+/?) output terminal ring. Two conductive posts, each of which are connected to only one of the DC (+/?) output terminal rings permit external connection to a main rotor winding.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: September 8, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Mark A. Osborn, Douglas J. Turner, Brandon M. Grell
  • Patent number: 7586204
    Abstract: A permanent magnet alternator is driven by a turbine engine to supply three phases of power to a control circuit for the engine. A shunt regulator delivers current to the control circuit, and a voltage supply is also included to deliver power for a period of time as the alternator is gaining speed at startup. A speed detection circuit detects the speed of the shaft for diagnostic purposes and a feedback circuit overrides a control for the supply of the current at lower speeds such that the speed detection circuit will be accurate even at lower speeds.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: September 8, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Gary L. Hess, James A. Gosse, Carl J. Alleva
  • Patent number: 7584782
    Abstract: A valve comprises an inlet portion configured to couple to a source of a fluid, and a body portion in fluidic communication with the inlet portion. The body portion defines a modulated flow path and a constant flow path adjacent to the modulated flow path.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: September 8, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Peter Bizzarro
  • Publication number: 20090219692
    Abstract: The present invention provides a rack suitable for housing a liquid-cooled electric unit. A rack 2 comprises an electric connector 12 for supplying electricity to the housed electric unit 50, and a fluid connector 14 for supplying cooling liquid to the housed electric unit 50. The fluid connector 14 and the electric connector 12 are arranged at different positions in a horizontal cross section (plane) of the rack 2. More preferably, the electric connector 12 is mounted on a back panel 6 of the rack 2, while the fluid connector 14 is mounted on the foreside of the rack 2. Such a configuration makes it less likely that the cooling liquid leaking from the fluid connector 14 drips onto the electric connector 12.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 3, 2009
    Applicants: NABTESCO CORPORATION, HAMILTON SUNDSTRAND
    Inventors: Jeffrey T. Wavering, Francis C. Belisle, Darin R. Driessen, Tsutomu Yasui
  • Patent number: 7581515
    Abstract: A heat exchanger assembly includes a plurality of evaporative heat exchangers that are selectively feed evaporant to tailor operation to current heat load in order to maintain operation in thermodynamically extreme operating conditions.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: September 1, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Edward W. O'Connor
  • Patent number: 7583046
    Abstract: For a multiphase alternating current (AC) wound field synchronous machine (WFSM) that has a stator with a selected number of poles, the WFSM having an associated exciter and multiphase AC permanent magnet machine (PMM) directly coupled to the WFSM, a method of sensing the position of a rotor in the WFSM comprises the steps of: configuring a stator for the PMM to have a number of poles that is a sub-multiple of the selected number of WFSM stator poles; configuring a rotor for the PMM to have high saliency; applying multiphase AC power of a selected frequency to the PMM stator; detecting at least one set of stator harmonic currents of the multiphase AC power resulting from the rotor saliency; converting the detected PMM harmonic stator currents from their multiphase coordinates to ?? coordinates; rotating the converted PMM stator currents into a reference frame for at least one selected harmonic to generate ?? coordinate harmonic current vectors; and estimating the position of the WFSM rotor based on the values
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: September 1, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Vijay K Maddali, Albert L Markunas
  • Patent number: 7581660
    Abstract: A liquid-metering device is disclosed, in particular, a pipetting device for aspirating and dispensing liquids. The device comprises a vessel which is at least partially filled with gas and has an opening through which liquid is received or discharged, a gas-pressure-changing device for changing the gas pressure in the vessel, a state-variable-detecting device for detecting at least one state variable of the gas in the vessel, and a control device which activates the gas-pressure-changing device as a function of the state variable detected by the state-variable-detecting device. The control device is a regulating device which, during a regulating time segment between liquid reception and liquid discharge, activates the gas-pressure-changing device as a function of the detected state variable such that the actual gas pressure in the vessel is kept essentially at a predetermined gas pressure.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: September 1, 2009
    Assignee: Hamilton Bonaduz AG
    Inventors: Renato Nay, Markus Bentz, Rene Ackermann
  • Patent number: 7581929
    Abstract: A balance system for a rotational airfoil assembly includes a bulkhead, an elongated member, a support member and at least one balance weight. The elongated member extends through the bulkhead along a bore toward an airfoil tip segment of the airfoil assembly. The balance weights are mounted to a tip segment of the elongated member positioned within the bore outboard of an airfoil mid-span segment of the airfoil assembly. A reduced quantity of weight is required to balance the airfoil assembly because of the location of the balance weights outside of the mid-span segment of the airfoil assembly.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: September 1, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Paul Armand Carvalho
  • Publication number: 20090214331
    Abstract: A rotor assembly for a miniature gas turbine propulsion system comprises a centrifugal compressor wheel, a turbine wheel, a shaft and a tie bolt. The centrifugal compressor wheel includes a first curved tooth coupling, and the turbine wheel includes a second curved tooth coupling interconnected with the first curved tooth coupling. The shaft extends from the centrifugal compressor wheel, and the tie bolt extends between the shaft and the turbine wheel to bring the first curved tooth coupling into compression with the second curved tooth coupling. As such, the compressor wheel and the turbine wheel are assembled and remain, over the operational envelope of the propulsion system, in a reliably robust aligned configuration.
    Type: Application
    Filed: February 22, 2008
    Publication date: August 27, 2009
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Gordon F. Jewess, Tuan H. Nguyen, Tammy L. Lane, Reginald G. Keetley
  • Patent number: D599617
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: September 8, 2009
    Assignee: Hamilton Beach Brands, Inc.
    Inventor: Guoyao Ye