Patents Assigned to Hamilton
  • Patent number: 9188022
    Abstract: A propeller system for an aircraft includes a propeller assembly rotatable about a central axis and a reduction gearbox operably connected to the propeller assembly via a propeller shaft. An electrical power transfer system is positioned such that the gearbox is located axially between the electrical power transfer system and the propeller assembly. The electrical power transfer system includes a slip ring assembly operably connected to an oil transfer tube extending to the propeller assembly and a brush block interactive with the slip ring assembly to transfer electrical power to a plurality of lead wires extending from the slip ring assembly to the propeller assembly. The brush block is positioned such that brush block tips of the brush block extend toward the slip ring assembly in a substantially axial direction relative to the central axis.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: November 17, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Mark R. Plickys, Paul A. Carvalho
  • Patent number: 9186070
    Abstract: The invention relates to an apparatus with sensing means suitable for sensing the inspiratory phase and the expiratory phase of each respiratory cycle of a respirated person from in each case at least one minimum and maximum amplitude of a circulation value within a single respiratory cycle, and with a computing device for calculating a variation of the amplitudes of the circulation value occurring within a said respiratory cycle.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: November 17, 2015
    Assignee: HAMILTON MEDICAL AG
    Inventors: Marc Wysocki, Josef Brunner, Ricardo Lopez Gasco, Dominik Novotni, Thomas Laubscher, Gion Durisch
  • Patent number: 9187190
    Abstract: A concentric split flow filter may be configured to remove odor and/or bacteria from pumped air used to collect urine and fecal waste products. For instance, filter may be designed to effectively fill the volume that was previously considered wasted surrounding the transport tube of a waste management system. The concentric split flow filter may be configured to split the air flow, with substantially half of the air flow to be treated traveling through a first bed of filter media and substantially the other half of the air flow to be treated traveling through the second bed of filter media. This split flow design reduces the air velocity by 50%. In this way, the pressure drop of filter may be reduced by as much as a factor of 4 as compare to the conventional design.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: November 17, 2015
    Assignee: HAMILTON SUNDSTRAND SPACE SYSTEMS INTERNATIONAL, INC.
    Inventor: Thomas J. Stapleton
  • Patent number: 9188105
    Abstract: A driveshaft for an aircraft ram air turbine includes a substantially cylindrical elongate portion, a first end extending from the elongate portion, and a second end extending from the elongate portion opposite the first end. The first and second ends each include a substantially frusto-conical section having a curved generatrix, such that distal portions of each of the first and second ends have smaller outer diameters than an outer diameter of the elongate portion. The elongate portion provides relatively high lateral stiffness and the first and second ends provide relatively low torsional stiffness, such that the driveshaft has a lateral natural frequency higher than an operating range of the driveshaft and has a torsional natural frequency below the operating range of the driveshaft.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: November 17, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Stephen Michael Bortoli, Dustin L. Kaap
  • Patent number: 9181959
    Abstract: An example housing of a cabin air compressor assembly includes a main body portion and a motor outlet duct extending radially from the main body portion. The motor outlet duct interfaces with the main body portion at an interface area. A ratio of a radius of the interface area to an inner diameter of the motor outlet duct is from 0.113 to 0.162.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: November 10, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Seth E. Rosen, Brent J. Merritt
  • Patent number: 9184657
    Abstract: A DC/DC converter includes an internal transistor and a current sensor that is operable to sense a current passing through the transistor. The DC/DC converter also includes an output current estimator module that estimates the output current based on the sensed transistor current.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: November 10, 2015
    Assignee: Hamilton Sundstrand Space Systems International, Inc.
    Inventors: David A. Fox, Jason A. Ohnemus
  • Patent number: 9180447
    Abstract: The invention relates to a pipetting device, comprising at least two pipetting channels (50, 50?), which extend along a channel axis (K) and which each can be adjusted along the channel axis (K), wherein the pipetting device (10) has a displacement drive, by means of which each pipetting channel (50, 50?) can be displaced independently of the other pipetting channel (50, 50?) along a displacement axis (V) orthogonal to the channel axis (K) regardless of an adjustment along the channel axis (K), wherein the displacement drive comprises a linear motor, the stator of which has at least two magnet arrangements (32, 42), which comprise a row of magnets (36) on a magnet carrier (34, 44), said magnets being consecutive along the displacement axis (V) and being arranged differently with regard to the polarity (P1, P2) thereof, and the armature of which (at 38, at 38?); has at least one conductor loop arrangement (38), which comprises at least one set of three conductor loops (72, 74, 76) that are consecutive along th
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: November 10, 2015
    Assignee: HAMILTON BONADUZ AG
    Inventors: Andreas Schlegel, Hanspeter Romer
  • Patent number: 9181956
    Abstract: An example seal shaft includes a cylindrical body establishing a bore that extends axially between a first end portion of the body and a second end portion of the body. Apertures are also established in the body. The apertures extend radially between an outer surface of the body and the bore. The seal shaft further includes a first group knife edge seals and a second group of knife edge seals. The first group of knife edge seals have a diameter, and a ratio of the diameter to the total cross-sectional area of the apertures is between 58.79 and 78.77.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: November 10, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Seth E. Rosen, Craig M. Beers
  • Patent number: 9180457
    Abstract: A metering device for use in syringes and pipetting piston-cylinder arrangements, including a sealing component working together with at least one pretensioning component. The sealing component comprises a sealing segment extending in the axial direction and in the circumferential direction. The sealing segment has a sealing surface facing in a first radial direction for sealing and sliding contact in at least the axial direction, is formed on a working surface formed on the outer surface of the piston rod facing toward the inner wall of the cylinder. The sealing segment also has a pretensioning surface extending in a second radial direction opposite to the first for engaging with the pretensioning component for transferring the radial pretensioning force, where the pretensioning component includes a spring carrier and a plurality of separately formed radial spring segments compliantly supported at least in the radial direction on the spring carrier.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: November 10, 2015
    Assignee: HAMILTON BONADUZ AG
    Inventor: Klaus Leckebusch
  • Publication number: 20150316469
    Abstract: A device for measuring a periodic signal includes: a light source for generating an optical input signal directed at an object being measured from an electrical input signal generated by a driver device on the basis of a first clock pulse; an optical receiver for detecting and converting the signal received from the object being measured, the signal corresponding to the optical input signal altered in terms of phase and amplitude into an electrical measuring signal; a central control and measuring device which is designed to generate the first clock pulse for the driver device and to receive and to process the electrical measuring signal; and a voltage-supply apparatus for supplying the driver device, the central control and measuring device being designed to generate a second clock pulse for the voltage-supply apparatus and to filter the electrical measuring signal on the basis of the first and/or second clock pulse, and wherein the frequency of the second clock pulse is an even multiple of the frequency of
    Type: Application
    Filed: December 11, 2013
    Publication date: November 5, 2015
    Applicant: HAMILTON BONADUZ AG
    Inventors: Bernd Offenbeck, Louis Willi
  • Publication number: 20150318103
    Abstract: A common-mode choke includes a plurality of hybrid core inductors and a printed circuit board. Each of the plurality of hybrid core inductors includes a first core made of a first material, a second core made of a second material, and at least one common coil configured to generate a magnetic field in both the first and second cores. The printed circuit board is configured to connect the plurality of hybrid core inductors in series.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 5, 2015
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Gregory I. Rozman, Jacek F. Gieras
  • Patent number: 9175789
    Abstract: In one featured embodiment, a sleeve for a valve includes a sleeve body surrounding a center axis and defined by an overall length extending from a first end to a second end. The sleeve body has a central bore extending from the first end to the second end. The central bore has a first surface portion comprising a piston contact surface that is defined by a first inner diameter, wherein the piston contact surface is configured to slide against a piston to be received within the central bore. In one example, a ratio of the overall length to the first inner diameter is between 3.51 and 3.63.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: November 3, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Aaron Rickis, David J. Podgorski
  • Patent number: 9175696
    Abstract: A support bracket for a cabin air compressor (CAC) assembly includes a CAC mounting portion with a plurality of CAC mounting holes distributed in an arc configuration along a CAC mounting hole circle radius defined from an origin. A support portion includes a ramped face that transitions to an upper lug portion and a substantially perpendicular face relative to the CAC mounting portion. An upper lug includes a coupling hole offset from a first CAC mounting hole at a first length in a first direction and a second length in a second direction. The first CAC mounting hole is offset from the origin by a third length in the first direction and a fourth length in the second direction. A ratio of the first length to the third length is between 0.48 and 0.50, and a ratio of the second length to the fourth length is between 2.48 and 2.54.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: November 3, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Mark Vignali, Luke J. Mayo
  • Patent number: 9175694
    Abstract: An air cooled motor controller includes a substrate and at least one inductor assembly arranged on the substrate. The at least one inductor assembly includes a outer cylindrical housing, a wound inductor core arranged within the outer cylindrical housing, and a inner cylindrical housing arranged within the wound inductor core, wherein the inner cylindrical housing defines an inner cylindrical cavity configured to transmit air, and wherein the outer cylindrical housing and the inner cylindrical housing define at least one cylindrical gap in fluid communication with the inner cylindrical cavity and configured to transmit air. The motor controller also includes at least one air source in fluid communication with the at least one cylindrical gap.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: November 3, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Debabrata Pal
  • Patent number: 9175991
    Abstract: A valve assembly is provided and includes a pitot tube having an angled tip to extract from a duct formed by a housing a sample of a fluid to be communicated to an actuator configured to operate the duct, the pitot tube being disposed within the housing whereby the pitot tube is fixed longitudinally between the actuator and the housing and laterally within the housing and an anti-rotation mechanism coupled with the pitot tube to rotationally secure the pitot tube such that the angled tip is fixed to face rearwardly.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: November 3, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Josh Kamp, Michael T. Burnickas
  • Patent number: 9178355
    Abstract: A multi-phase power control switch has multiple power controller channels, each of which includes at least one power controller having a microprocessor. Each of the microprocessors cross communicates with each other of the microprocessors using a data bus.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: November 3, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Norbert J. Simper, Markus Greither, Alexander Michel, Carl A. Wagner, Andrew David Bellis
  • Patent number: 9178400
    Abstract: A cooling arrangement for a motor assembly includes a motor operably connected to a load. Also included is a motor controller disposed adjacent to, and fluidly coupled to, the motor, the motor controller disposed within a housing enclosing a cooling fluid for immersion of a plurality of motor controller components. Further included is a duct arrangement configured to route a cooling flow to a location proximate the housing of the motor controller for cooling therealong.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: November 3, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Debabrata Pal, Mustansir Hussainy Kheraluwala, Eric Alan Carter, Robert Scott Downing, Charles Patrick Shepard
  • Publication number: 20150308878
    Abstract: A starter can be configured for use with a turbomachine and includes a housing defining a cavity, wherein the cavity is configured to hold a quantity of starter oil, and a temperature sensor disposed within the cavity and configured to sense a temperature within the housing. A system includes a starter for a turbomachine as described herein and a computing apparatus configured to receive signals from the temperature sensor and to determine if the temperature within the housing indicates a sufficient quantity of starter oil. A method for determining oil quantity in a starter includes receiving a temperature signal from a temperature sensor disposed within the starter, determining an oil temperature within the starter based on comparing the temperature signal, and determining if a sufficient amount of oil is present in the starter based on comparing predetermined temperature operational values to the oil temperature.
    Type: Application
    Filed: April 24, 2014
    Publication date: October 29, 2015
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: John T. Pech, Benjamin T. Harder
  • Publication number: 20150308283
    Abstract: A starter configured for use with a turbomachine includes a housing defining a cavity, a transmission operative to convert an airflow into rotational motion for starting an engine, wherein the cavity is configured to hold a quantity of starter oil for lubricating at least a portion of the transmission, and an oil filter disposed in fluid communication with the starter oil.
    Type: Application
    Filed: April 24, 2014
    Publication date: October 29, 2015
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: John T. Pech, Jeffrey M. Makulec
  • Publication number: 20150308460
    Abstract: A ram air fan assembly includes an outer housing. An inner housing is located within the outer housing. A motor is attached to the inner housing. An inlet tube extends between the outer housing and the motor. The inlet tube includes a straight first portion and a curved second portion. At least one of the two portions includes a perforated portion.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 29, 2015
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Milan Lucic, John M. Beck, Paul E. Hamel, Robert Telakowski