Patents Examined by Tran Nguyen
  • Linear motor
    Patent number: 9318943
    Abstract: In a linear motor, one of a field system and an armature is configured as a mover and the other is configured as a stator. The field system relatively moves with respect to the armature. The field system includes two yoke boards which are arranged facing each other, a yoke base to which one side ends of the two yoke boards are to be fixed, a plurality of permanent magnets respectively fixed to facing surfaces of the two yoke boards and arranged along a moving direction of the mover, and an elastic member configured to apply force the facing surfaces of the two yoke boards in directions that other side ends of the two yoke boards move away from each other.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: April 19, 2016
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Keiji Yanagi, Tatsuhiko Koba
  • Double rotor stepping motor
    Patent number: 9318941
    Abstract: In precision mechanical actuators, wherein a high precision stepping motor can notably be used in the actuating mechanisms of artificial satellites, a stepping motor comprises two rotors that rotate in opposite directions to generate a low-amplitude movement between one of the rotors and a stator. The first rotor comprises a first set of teeth distributed at a first pitch p1 and a second set of teeth distributed at a second pitch p2. The stator comprises N stator contacts comprising a plurality a of teeth distributed at the pitch p1, distributed at a third pitch equal to p1(a+1/N), and able to cooperate with the teeth of the first set. The second rotor comprises N rotor contacts comprising a plurality b of teeth distributed at the pitch p2, distributed at a fourth pitch equal to p1(b+1/N), and able to cooperate with the teeth of the second set of the first rotor.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: April 19, 2016
    Assignee: THALES
    Inventors: Stephane Vezain, Yannick Baudasse, Yasmina Gafari
  • Flux controlled PM electric machine rotor
    Patent number: 9318937
    Abstract: A flux-regulated permanent magnet machine (PMM) includes a stationary portion and a rotating portion. The stationary portion includes a plurality of stator/armature windings. The rotating portion includes a plurality of permanent magnets and a control/field winding that is supplied with current to control the magnetic flux presented to the stator/armature windings.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: April 19, 2016
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Richard A. Himmelmann
  • Connector and spring assembly for a generator
    Patent number: 9312742
    Abstract: An assembly includes a resistor pack, a first spring clip, and a first rigid connector. The resistor pack has a first clip-shaped cavity therein. The first spring clip is disposed within the first clip-shaped cavity and the first connector is abutted by opposing portions of the first spring clip.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: April 12, 2016
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Andrew P. Grosskopf, Mark J. Franklin
  • Motor
    Patent number: 9312737
    Abstract: Disclosed is a motor, the motor according to an exemplary embodiment of the present disclosure including a motor housing, a stator mounted inside the motor housing and including a stator core and a coil wound on the stator core, a rotor rotatably installed at a center of the stator, and a busbar provided with a plurality of circumferentially and straightly protruded busbar terminals mounted at an upper surface of the stator, and connected by a coil.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: April 12, 2016
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Woongseon Ryu
  • Molded motor
    Patent number: 9300180
    Abstract: A molded motor includes an annular yoke part, a stator including a stator core having, a plurality of teeth parts extending from an inner peripheral surface of the annular yoke part toward a center thereof, an insulator covering the stator core, an outer shell formed around the stator core and the insulator and made of resin, a rotor coaxially disposed at the center of the stator, a connecting wire guide provided on the insulator to stand in an axial direction of the stator core at a position corresponding to an engagement recess of an outer peripheral part of the outer shell, and a connecting wire guided by the connecting wire guide. A crimped part of a bracket adapted to be attached to an end face of the stator is engaged with the engagement recess when a part of a side end face of the bracket is crimped and secured.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: March 29, 2016
    Assignee: FUJITSU GENERAL LIMITED
    Inventors: Masaki Yamada, Masanori Murakami, Tsugiyoshi Ono
  • Cooling jacket including a groove unit through which cooling medium passes, stator including a cooling jacket, and rotary electric machine including a cooling jacket
    Patent number: 9297273
    Abstract: A cooling jacket capable of improving production efficiency. The cooling jacket includes a tubular main body having a first end face and a second end face, and a groove unit defining a flow channel of a cooling medium successively disposed axially on an outer periphery of the main body. The cooling jacket includes no portion located radially outward from a bottom of the groove unit between a first end portion of the groove unit located on the axial rear side of the main body and the first end face of the main body.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: March 29, 2016
    Assignee: FANUC CORPORATION
    Inventor: Yohei Arimatsu
  • Brush holder apparatus, brush assembly, and method
    Patent number: 9293881
    Abstract: Devices and methods of use for brush holder assemblies are disclosed. Brush holder assemblies including a mounting block and a brush holder are disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. In some embodiments the brush holder includes a channel, such that at least a portion of the mounting block is disposed within the channel of the brush holder.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: March 22, 2016
    Assignee: CUTSFORTH, INC.
    Inventors: Robert S. Cutsforth, David L. Cutsforth
  • Brush holder apparatus, brush assembly, and method
    Patent number: 9293880
    Abstract: Devices and methods of use for brush holder assemblies are disclosed. Brush holder assemblies including a mounting block and a brush holder are disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. In some embodiments the brush holder includes a channel, such that at least a portion of the mounting block is disposed within the channel of the brush holder.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: March 22, 2016
    Assignee: CUTSFORTH, INC.
    Inventors: Robert S. Cutsforth, David L. Cutsforth
  • Brush holder apparatus, brush assembly, and method
    Patent number: 9293879
    Abstract: Devices and methods of use for brush holder assemblies are disclosed. Brush holder assemblies including a mounting block and a brush holder are disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. In some embodiments the brush holder includes a channel, such that at least a portion of the mounting block is disposed within the channel of the brush holder.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: March 22, 2016
    Assignee: CUTSFORTH, INC.
    Inventors: Robert S. Cutsforth, David L. Cutsforth
  • Spindle motor
    Patent number: 9287748
    Abstract: A spindle motor includes: a rotor; a rotating shaft whose one end is combined with the rotor; a sleeve bearing whose inner circumference rotatably supports the outer circumferential surface of the rotating shaft, and on the outer circumferential surface of which at least one oil circulation recess is provided along the lengthy direction of the sleeve bearing; a bearing housing having a first recess accommodating the sleeve bearing and a second recess that supports the other end of the rotating shaft at a central portion of the first recess, and made of a resin; and a number of protrusions that are protrudingly formed at a gap radially spaced apart from each other around the rotating shaft so that a plurality of guide grooves through which oil passes are formed on the bottom of the first recess, and on which the bottom of the sleeve bearing is mounted.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: March 15, 2016
    Assignee: SAMHONGSA CO., LTD.
    Inventors: Jong Hoon Lee, Chang Seob Song
  • Brush holder apparatus, brush assembly, and method
    Patent number: 9287676
    Abstract: Devices and methods of use for brush holder assemblies are disclosed. Brush holder assemblies including a mounting block and a brush holder are disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. In some embodiments the brush holder includes a channel, such that at least a portion of the mounting block is disposed within the channel of the brush holder.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: March 15, 2016
    Assignee: CUTSFORTH, INC.
    Inventors: Robert S. Cutsforth, David L. Cutsforth
  • Brush holder apparatus, brush assembly, and method
    Patent number: 9287674
    Abstract: Devices and methods of use for brush holder assemblies are disclosed. Brush holder assemblies including a mounting block and a brush holder are disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. In some embodiments the brush holder includes a channel, such that at least a portion of the mounting block is disposed within the channel of the brush holder.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: March 15, 2016
    Assignee: CUTSFORTH, INC.
    Inventors: Robert S. Cutsforth, David L. Cutsforth
  • Brush holder apparatus, brush assembly, and method
    Patent number: 9287675
    Abstract: Devices and methods of use for brush holder assemblies are disclosed. Brush holder assemblies including a mounting block and a brush holder are disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. In some embodiments the brush holder includes a channel, such that at least a portion of the mounting block is disposed within the channel of the brush holder.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: March 15, 2016
    Assignee: CUTSFORTH, INC.
    Inventors: Robert S. Cutsforth, David L. Cutsforth
  • Permanent-magnet electric motor comprising a segmented stator
    Patent number: 9281721
    Abstract: An electric motor (1) with permanent magnets includes a rotor (4), on which permanent magnets are fastened (6), and a stator (2). The stator includes a stator structure and coils (5) installed on the stator structure. The stator structure is realized by an assembly of at least three independent stator elements (21), assembled on a baseplate (3) with no direct mechanical linkage between them. Each stator element (21) is fastened onto the baseplate (3) of the motor by an adjusted fastener (31) and at least one anti-rotation element (32). Preferably, the stator elements (21) are made of a material that is a good heat conductor and electrical insulator, such as a ceramic.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: March 8, 2016
    Assignee: AIRBUS DEFENCE AND SPACE SAS
    Inventors: Jean Sperandei, Gilles Pupille
  • Rotor and motor
    Patent number: 9273691
    Abstract: A rotor includes a first rotor core, a second rotor core, a field magnet, and an auxiliary magnet. The first rotor core includes a first core base and a plurality of first hook-shaped poles. The second rotor core includes a second core base and a plurality of second hook-shaped poles. The first and second hook-shaped poles are alternately arranged in a circumferential direction of the rotor. The field magnet is arranged between the first and second core bases in an axial direction. The field magnet cause the first hook-shaped poles to function as first poles and the second hook-shaped poles to function as second poles. The auxiliary magnet includes at least two interpolar magnet portions, which are integrally formed. Each interpolar magnet portion is arranged in a void between the first hook-shaped pole and the second hook-shaped pole and magnetized in the circumferential direction.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: March 1, 2016
    Assignee: ASMO, Co., Ltd.
    Inventors: Yoji Yamada, Chie Morita, Yoko Tateishi, Yuuki Fujii, Seiya Yokoyama
  • Betavoltaic power sources for transportation applications
    Patent number: 9266437
    Abstract: A betavoltaic power source for transportation devices and applications is disclosed, wherein the device having a stacked configuration of isotope layers and energy conversion layers. The isotope layers have a half-life of between about 0.5 years and about 5 years and generate radiation with energy in the range from about 15 keV to about 200 keV. The betavoltaic power source is configured to provide sufficient power to operate the transportation device over its useful lifetime.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: February 23, 2016
    Assignee: Ultratech, Inc.
    Inventors: Arthur W. Zafiropoulo, Andrew M. Hawryluk
  • Motor support for a hybrid electric transmission
    Patent number: 9263924
    Abstract: An assembly for supporting a motor of a vehicle powertrain includes a housing, a stator secured to the housing, a bearing having a radial position established by the housing, a member contacting the bearing, and a rotor secured to the member and including a radial outer surface spaced radially from the stator by an air gap established by contact between the bearing and the member.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: February 16, 2016
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Steven A. Frait, Steven G. Thomas
  • Stepping motor having a band holding two stator end plates
    Patent number: 9263922
    Abstract: A stepping motor comprises: a first plate having plural band connection portions; a second plate mounting a band; a stator; and a structure that the stator is held by the first plate and the second plate from a front side and a back side of axial direction, wherein the plural band connection portions are positioned at a side surface of the stator and extend toward the second plate, and each of the plural band connection portions has an engagement portion at an outside thereof, the band has plural arms extending toward the first plate and engaging with the engagement portion of each of the plural band connection portions, and the band is connected to the first plate by engaging the arm portions with the engagement portions in a condition that the band holds the second plate and the stator.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: February 16, 2016
    Assignee: MINEBEA CO., LTD.
    Inventor: Masato Hata
  • Stator core compression
    Patent number: 9263921
    Abstract: Embodiments of the invention relate generally to electromagnetic devices and, more particularly, to the compression of stator core laminations using wire rope members and to stator cores and electromagnetic devices employing such wire rope members. In one embodiment, the invention includes: affixing a first end of a wire rope member to a first flange plate disposed adjacent a first end of a plurality of stator laminations; affixing a second end of the wire rope member to a second flange plate disposed adjacent a second end of the plurality of stator laminations; tensioning at least one of the first end or the second end of the wire rope member against at least one of the first flange plate and the second flange plate to exert a compressive force against the first flange plate, the second flange plate, and the plurality of stator laminations.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: February 16, 2016
    Assignee: General Electric Company
    Inventors: Anand Shankar Tanavde, Christopher Anthony Kaminski, Lakshminarayana Kanakamedala