Electric Motor Patents (Class 173/217)
  • Patent number: 11097396
    Abstract: An accessory for use with an oscillating power tool includes an attachment portion having a first planar member, a second planar member parallel to the first planar member, a central opening defined in one of the first planar member and the second planar member, a keyed sidewall disposed at least partially around the central opening and extending from the first planar member to the second planar member transverse to the first planar member and to the second planar member, and a plurality of equiangularly spaced recesses defined in one of the first planar member and the second planar member, the recesses spaced apart from the keyed sidewall and not in communication with the central opening. A working portion may be couplable to the attachment portion and configured to perform an operation on a workpiece.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: August 24, 2021
    Assignee: Black & Decker Inc.
    Inventors: Sarah J. Montplaisir, David B. Lee, Rachel A. Lombardo, Mark D. Miller, Jr., Kevin W. Covell
  • Patent number: 11090784
    Abstract: A screw-tightening electric tool includes a housing having a grip portion configured to be gripped by a hand of a user. A brushless motor is located in the housing and includes a stator fixed to the housing and a rotor that is rotatable relative to the stator. A tip-tool retaining part configured to hold a bit is located at a front of the housing, a battery mounting part is disposed at a lower end of the grip portion, and a battery pack is detachably affixed to the battery mounting part. A trigger protrudes from the grip portion, a trigger switch is disposed within the grip portion, and a control circuit board is disposed on the battery mounting part and offset from the brushless motor in the front-rear direction of the electric tool.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: August 17, 2021
    Assignee: MAKITA CORPORATION
    Inventors: Takashi Kiyohara, Takashi Sakamoto
  • Patent number: 11040439
    Abstract: A hand-held machine tool, in particular a sanding machine, including a rod-type handle element for the user to grip and a processing head which is moveably mounted on the handle element by means of a joint assembly. The processing head has an electric drive motor for driving a tool holder provided for holding a processing tool and a speed-reducing gearbox between the drive motor and the tool holder, the gearbox being designed to achieve a reduction in speed of an output of the drive motor relative to a speed of the tool holder. The drive motor is a brushless motor and a power supply system for the drive motor is arranged at a distance from the drive motor on the handle element, the power supply system being connected to the drive motor by means of a cable arrangement.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: June 22, 2021
    Assignee: FESTOOL GMBH
    Inventor: Nico Walker
  • Patent number: 11027349
    Abstract: A power tool includes: a power assembly including a motor, the motor including a motor shaft rotatable about a motor axis; an output assembly including an output shaft; a transmission assembly; a first housing; a second housing; wherein the power tool is provided with a first vibration isolation plane and a second vibration isolation plane; the first vibration isolation plane is provided with a first vibration isolation block, and the second vibration isolation plane is provided with a second vibration isolation block; the whole composed of the first vibration isolation block and the second vibration isolation block is at least provided with a spacing portion between the first housing and the second housing; the second housing is spaced apart from the first housing at the spacing portion; the first vibration isolation block and the second vibration isolation block are separated from each other.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: June 8, 2021
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Qi Ling, Rong Wang, Yang Li
  • Patent number: 11020846
    Abstract: Provided is a work tool that can work suitably in cooperation with an attachment device connected to a main body of the work tool to enhance work efficiency. The work tool includes a main body 2, and a control circuit 71 configured to provide control over the main body 2. The main body 2 includes a motor 3, an end-bit mount portion 10 and an end bit 14 as a work part configured to be driven by the motor 3 to perform a work. A dust collector 100 is connectable to the main body 2 to assist the work. The control circuit 71 is configured to detect whether the dust collector 100 is connected to the main body 2 and change the control over the main body 2 based on whether the connection is established or not.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: June 1, 2021
    Assignee: Koki Holdings Co., Ltd.
    Inventors: Yoshikazu Kawano, Tomoaki Sudo, Kenichi Takaada, Shinichi Sakuma
  • Patent number: 11005206
    Abstract: A plug-in coupling (100) for making electrical contact with an electric drive (90) which is included in a hand-held power tool (200) and has a battery unit (20) which is to be accommodated by the hand-held power tool (200). The plug-in coupling (100) has at least one electrical contact plate (1) which is to be connected to the hand-held power tool (200), and at least one electrical contact spring pair (3) which corresponds to the contact plate (1), wherein the contact spring pair (3) is to be arranged on the battery unit (20) and is to be slid onto the contact plate (1) in the sliding-on direction (AR) and is to be withdrawn therefrom in the withdrawal direction (AB), wherein in the state in which contact is made (ZK) the contact plate (1) and the contact spring pair (3) form a frictionally locking latching-connection pairing.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: May 11, 2021
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ralf Meixner, Johannes Stempfhuber, Markus Holubarsch
  • Patent number: 10940605
    Abstract: A power tool includes a housing and a motor disposed in the housing. The motor has an axial face and a motor shaft extending from the axial face. The power tool also includes a spindle driven by the motor about an output axis, a motor plate having a central opening defining an inner surface of the motor plate, and a tolerance ring coupled to the inner surface of the motor plate. The tolerance ring has deformable waves. The motor plate is coupled to the motor by engagement of the deformable waves with the motor to take up tolerances between the motor plate and the motor.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: March 9, 2021
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Troy C. Thorson, Jeffrey M. Wackwitz, Emily Doberstein, James Wekwert
  • Patent number: 10864609
    Abstract: A dust collector includes a body configured to be removably attached to a lower side of a tool body of a drilling tool, a dust storing part to be disposed on a lower side of the body, a sliding part having a suction port and held by the body so as to be slidable in a front-rear direction, a dust transfer passage extending within the sliding part and connecting the suction port and an inlet of the dust storing part, and a tool connection passage disposed within an internal space of the body and configured to connect an outlet of the dust storing part and an inlet of the tool body of the drilling tool. The dust storing part includes the inlet, a filter, a dust storing space and the outlet. The filter is disposed forward of the inlet of the dust storing part.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: December 15, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Keita Mori, Kiyonobu Yoshikane
  • Patent number: 10836027
    Abstract: A hand-held power tool includes a housing, a motor having a motor shaft, and a fan mounted onto the motor shaft and driven by the motor. The fan has a plurality of large and small fan blades arranged in a staggered form on a surface of the fan. Such arrangement of the fan blades effectively improve the heat dissipation efficiency of the power tool.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: November 17, 2020
    Assignee: Nanjing Chevron Industry Co., Ltd.
    Inventors: Qingsong Yang, Wei Wei
  • Patent number: 10818980
    Abstract: A battery pack includes: a plurality of battery cells; a plurality of frames each between two adjacent battery cells among the battery cells in a direction, the frames coupled to and facing each other; and a wiring substrate mounted on the frames and configured to collect status information of the battery cells from the battery cells, and each of the frames includes a latching protrusion and a tensioner which protrude therefrom and press against an upper surface and a lower surface of the wiring substrate, respectively. The battery pack has an improved structure in which the position of the wiring substrate for obtaining and collecting status information of the plurality of battery cells may be stably fixed.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: October 27, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Junyoung Kim, Eungyeong Gu, Seungwoo Yang, Kyungho Cho
  • Patent number: 10804823
    Abstract: Provided is a washing machine including: a stator including a coil; a rotor including a plurality of variable magnets each having a magnetic force variable, and rotatable with respect to the stator; a controller configured to control an energizing of the coil to increase or decrease a magnetic force of the variable magnet; and a plurality of position sensors each having a output voltage changed according to a magnetic flux of the variable magnet.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: October 13, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tomonori Ueno, Hiroshi Katsumoto, Taro Yoshida, Hidekazu Funakoshi, Yukinori Nakagawa, Yasuyuki Sonoda, Masaki Oshige, Yasumasa Nagasaki
  • Patent number: 10744632
    Abstract: A power tool, including an output member, a motor, a housing, a transmission device, and a shifting device. The shifting device includes a first shifting element, a second shifting element, an operation member, and a connecting member. The first shifting element is capable of switching between a first position and a second position, and the second shifting element is capable of switching between a third position and a fourth position. When sliding relative to the housing, the operation member drives the first shifting element to switch between the first position and the second position, and a position of the second shifting element remains unchanged. When the operation member rotates relative to the housing, the connecting member drives the second shifting element to switch between the third position and the fourth position, and a position of the first shifting element remains unchanged.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: August 18, 2020
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Masatoshi Fukinuki, Yasheng Chen, Wei Lu
  • Patent number: 10749405
    Abstract: Provided is a power tool whereby reduction is made for time-consuming effort and cost required in trouble, inspection and so forth related to a motor. A hammer drill, which is an example of a power tool, includes a plurality of coils, an insulator holding the plurality of coils, a terminal unit that is electrically connected to the plurality of coils and is attached to the insulator, a rotor that is rotatable with respect to the insulator, and a sensor board that detects rotation of the rotor and is attached to the terminal unit. The sensor board is detachable from the terminal unit, while the terminal unit is attached to the insulator.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: August 18, 2020
    Assignee: MAKITA CORPORATION
    Inventor: Tatsuya Nagahama
  • Patent number: 10734677
    Abstract: A new class of electrolyte salts that contain substituted imidazole or benzimidazole groups is described. The salts can be used in non-aqueous electrolytes in lithium or other alkali battery cells. When used with a lithium metal anode, the salts are electrochemically stable up to 5V vs. Li/Li+.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: August 4, 2020
    Assignee: ROBERT BOSCH GMBH
    Inventors: Jin Yang, Hany Basam Eitouni, Malar Azagarsamy, Boris Kozinsky, Georgy Samsonidze, Nicola Molinari
  • Patent number: 10702930
    Abstract: The invention relates to a boring machine comprising a spindle (15) which is designed for rotationally driving a boring tool that is placed or can be placed on the spindle and which is paired together with rotational drive means that interact with a first drive motor (24) for rotational driving purposes and with adjustment drive means that interact with a second drive motor (26) for axially adjusting the spindle such that when the spindle is being rotated by the first drive motor, the spindle can be axially adjusted under the effect of the second drive motor. The rotational drive means have a rotational drive gear (38) which is connected to the spindle, and the adjustment drive means have an adjustment nut (58) which interacts with a threaded section (60) of the spindle (15) in the manner of a slide. Transmission means are integrated in the form of a transmission module for interacting with the rotational drive gear and the adjustment nut and are designed to connect to the first and the second drive motor.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: July 7, 2020
    Assignee: Johannes Lübbering GmbH
    Inventors: Johannes Stafflage, Thomas Langhorst
  • Patent number: 10707458
    Abstract: A hand-held power tool includes: a housing and a rechargeable battery pack. A housing interface unit of the housing cooperates with a rechargeable battery pack interface unit of the rechargeable battery pack to provide a mechanical and electrical connection between the hand-held power tool and the rechargeable battery pack. The rechargeable battery pack interface unit includes a locking element, and the housing interface unit includes a contact plate having at least one contact element configured for the electrical contacting with countercontact elements of the rechargeable battery pack. The contact plate represents a component which is detachably connected to the housing, and the contact plate also includes a retaining element for additional fixing of the rechargeable battery pack interface unit to the contact plate.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: July 7, 2020
    Assignee: Robert Bosch GmbH
    Inventor: Wolf Zahn
  • Patent number: 10707459
    Abstract: A battery includes a housing, a plurality of battery cells, a first part, and a second part. The plurality of battery cells is disposed in the housing. The first part includes a first contact. The first contact has a first connection to at least one battery cell of the plurality of battery cells. The second part includes a second contact. The second contact has a second connection to at least one battery cell of the plurality of battery cells. The second part is movable to a first position to provide electrical separation between the second contact and the first contact such that the plurality of battery cells is disconnected from each other. In addition, the second part is movable to a second position to provide electrical connection between the second contact and the first contact such that the plurality of battery cells is connected to each other.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: July 7, 2020
    Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbH
    Inventor: Plamen Marinov
  • Patent number: 10617431
    Abstract: Systems and apparatus for reliably sealing a surgical device are disclosed herein. Specifically, a surgical device including a drive shaft tube that is coupled to a drive shaft is disclosed. Because the drive shaft tube is coupled to the drive shaft, the drive shaft tube rotates at the same rotational speed as the drive shaft, which is less than the rotational speed of a cannulated motor shaft. The drive shaft tube can extend through the cannulated motor shaft. In addition, a sealing member can be provided to seal between the drive shaft tube (which rotates slowly) and the motor instead of between the motor shaft (which rotates more quickly) and the motor. The sealing member can be provided in a gap defined between an outer surface of a portion of the drive shaft tube extending beyond the cannulated motor shaft and the motor.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: April 14, 2020
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Urs Dürrenberger, Martin Münch, Nils Schmuckli
  • Patent number: 10608391
    Abstract: Batteries having different form factors and power tools that are capable of using such batteries are described. In some embodiments, a power tool may use batteries having a post form factor as well as batteries having a slide form factor.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: March 31, 2020
    Assignee: TRANSFORM SR BRANDS LLC
    Inventor: Colin G. Knight
  • Patent number: 10562167
    Abstract: An improved technique relating to mounting of a battery in an impact tool which has a handle configured to move with respect to a tool body. A hammer drill has a body, a handle part and a battery mounting part. The handle part is configured to slide with respect to the body under a biasing force of a coil spring. The battery mounting part has a plurality of mounting parts. At least one of the mounting parts of the battery mounting part is connected to the handle part and slides together with the handle part with respect to the body during operation.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: February 18, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Hajime Takeuchi, Masanori Furusawa
  • Patent number: 10513005
    Abstract: A power tool, such as a grinder, includes a motor housing that houses a motor. A grip housing extends in a longitudinal direction of the power tool and has a first longitudinal end coupled to the motor housing, first and second battery-mount parts formed at a second longitudinal end, and a grip part disposed between the first and second longitudinal ends. First and second battery packs are respectively mountable on the first and second battery-mount parts, and the grip housing comprises an upper housing half joined to a lower housing half.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: December 24, 2019
    Assignee: MAKITA CORPORATION
    Inventors: Takahiro Kawakami, Yoshinori Sasaki
  • Patent number: 10478950
    Abstract: A power tool includes a tool-main-body part, an electric motor as a drive source, a grip part, which extends downward from the tool-main-body part and is configured to be gripped by a user, and a power-supply unit at a tip of the grip part. The power tool includes a controller configured to control the operation of the electric motor, the controller being located on the power-supply unit, and a display controlled by the controller and configured to indicate an operating state of the electric motor. The controller and the display each have a flat-plate shape and are disposed along a surface direction with respect to one another, and the display includes a first portion that overlies the controller and a second portion that projects beyond an end edge of the controller.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: November 19, 2019
    Assignee: MAKITA CORPORATION
    Inventors: Hidenori Nagasaka, Ryunosuke Kumagai, Koji Tsukamoto, Tomonori Kawase, Kosuke Ito, Tokuo Hirabayashi, Yasuhito Kawai
  • Patent number: 10449662
    Abstract: A tethering assembly has a first ring connector, a second ring connector, and a wire rope sling with a first eye on the first end portion and a second eye on the second end portion. The wire rope sling extends between and links the first ring connector to the second ring connector. The tethering assembly is installed on a power hand tool having an elongated tool body extending to a gear housing that defines fastener bores in opposite sides of the gear housing. A side handle is installed in one fastener bore with the handle fastener extending through the first ring connector. An auxiliary bolt is installed in another fastener bore on the opposite side of the gear housing with the auxiliary bolt extending through the second ring connector. The sling extends over the top of the power hand tool and defines a tether-connector loop for attachment to a tether.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: October 22, 2019
    Assignee: TY-FLOT, INC.
    Inventors: Darrell A. Moreau, Andre W. Moreau
  • Patent number: 10400962
    Abstract: A lighting device has a device body including an output terminal for outputting electric energy and a split-type light including at least a lighting element. The device body includes a coupling portion for detachably connecting the split-type light with the device body. The split-type light includes a built-in power supply for supplying electric energy to the lighting element and an input terminal for inputting electric energy to the split-type light. When the split-type light is connected with the device body, the output terminal is electrically connected with the input terminal.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: September 3, 2019
    Assignee: CHERVON (HK) LIMITED
    Inventor: Guillaume Keller
  • Patent number: 10391623
    Abstract: A power tool with an epicyclically or so called planet gear system with two annulus gears, at least one solar gear with external toothing, and planet wheels having two toothed rings which each mesh with one of the annulus gears. A planet carrier holding the planet wheels. The gear is interchangeable between an at least first configuration and second configuration, wherein the planet carrier is interchangeable between being locked or partly locked rotationally to the frame or being unlocked rotationally from the frame.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: August 27, 2019
    Assignee: Hilti Aktiengesellschaft
    Inventor: Troels Pedersen
  • Patent number: 10349984
    Abstract: Multi-mode torque drivers employing anti-backdrive units for managing pedicle screw attachments with vertebrae, and related systems and methods are disclosed. A spinal column includes vertebrae in an articulating structure protecting a spinal cord. Medical intervention may involve limiting the relative motion between vertebrae by fusing vertebrae together with mechanical assemblies, including pedicle screws attached to the vertebrae. A torque driver may be used to form the pedicle screw attachments with vertebrae. By including an anti-backdrive unit and a motor assembly enclosed within a handle body as part of a multi-mode torque driver, the user may apply sequential combinations of manual and motorized torques to the screws with high levels of tactile feedback as desired. In this manner, pedicle screw attachments may be efficiently achieved with fewer injuries to the patient and surgeon while minimizing screw attachment failures.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: July 16, 2019
    Assignee: Power T Handle, LLC
    Inventor: Kevin S. Cahill
  • Patent number: 10307038
    Abstract: A surgical system is provided including a reusable handle assembly having a controller and a reusable cannula assembly configured to be operatively connected to and steerable by the reusable handle assembly. Additionally, the surgical system includes a plurality of surgical instruments configured to be inserted through the reusable handle assembly and configured to advance a length of the reusable cannula assembly, such that the plurality of surgical instruments are engaged with at least one trigger mechanism of the reusable handle assembly. The handle assembly, the cannula assembly, and the plurality of surgical instruments are modular components configured to be releasably or removably coupled or interconnected to each other.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: June 4, 2019
    Assignee: Covidien LP
    Inventors: Kevin Sniffin, Eric Taylor, Peter Hathaway, Emily Davis
  • Patent number: 10286464
    Abstract: A motor housing of housings forming an outer casing of a tool main body is provided with two battery attachment portions allowing attachment of rechargeable batteries. The two battery attachment portions are configured as slide attachment type battery attachment portions. The two battery attachment portions are suited to slide attachment type rechargeable batteries that are attached through sliding. The two rechargeable batteries are attached in the right-left direction of the tool main body so that the two rechargeable batteries can be arranged side by side in the direction in which the tool main body extends.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: May 14, 2019
    Assignee: MAKITA CORPORATION
    Inventors: Tomohiro Ukai, Takayuki Tahara, Taisuke Ukai, Yudai Sugino
  • Patent number: 10194906
    Abstract: Methods and devices are provided for performing robotic surgery. In general, a surgical system is provided including an electromechanical tool with a first mode of operation in which the electromechanical tool mimics movement of a controller, and a second mode of operation in which the tool mirrors movement of the controller. A hybrid surgical device is also provided including an adapter matable to a handle assembly such that the adapter is electronically coupled to a motor of the handle assembly and is configured to communicate with the motor. A robotic laparoscopic surgical device is also provided including a motion sensor configured to sense movement of an electromechanical tool and an electromechanical arm that assists movement of the tool. A robotic surgical device is also provided including an electromechanical driver associated with a trocar and being configured to rotate and to translate a tool disposed through a passageway.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: February 5, 2019
    Assignee: Ethicon LLC
    Inventors: Michael D. Auld, Steven G. Hall
  • Patent number: 10186994
    Abstract: The invention is related to a drive control for driving a dc motor of an electrical household appliance, in particular a hair cutting device such as an electric razor, shaver or epilator, at constant rotational speed.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: January 22, 2019
    Assignee: Bruan GMBH
    Inventors: Christian Neyer, Holger Hild, Felix Koenig, Gerd Laschinski
  • Patent number: 10171011
    Abstract: An electric tool includes: a motor configured to be driven by PWM controlling a semiconductor switching element; a trigger configured to adjust startup and rotation of the motor; a changeover switch configured to switch a rotation direction of the motor between a forward rotation and a reverse rotation; a power transmission mechanism configured to rotate a tip tool by the motor, and a controller configured to control rotation of the motor. When the reverse rotation is set by the changeover switch, the controller PWM controls the semiconductor switching element at a high duty ratio after the trigger is pulled to drive the motor, and thereafter drives the motor at a state where the high duty ratio is changed to a low duty ratio.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: January 1, 2019
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Nobuhiro Takano, Kazutaka Iwata
  • Patent number: 9999930
    Abstract: In a hand-held machine tool, having a tool holder for holding at least one first tool, which has a tang having a first coupling contour that is able to be connected to the tool holder and having a striking mechanism for the striking drive of the first tool connected to the tool holder in the axial direction of the tool holder in a striking operation associated with the hand-held machine tool, a chuck adapter is provided to hold at least one second tool, which has a tang provided with a second coupling contour, which is able to be connected to the chuck adapter in a torsionally fixed manner.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: June 19, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Joachim Hecht, Martin Kraus
  • Patent number: 9943939
    Abstract: In a handheld machine tool having a tool housing in which a gear unit is situated to transmit a torque generated by a drive motor to a drive spindle, to which drive spindle a spindle-locking device is assigned, the drive spindle has at least one radial depression in which at least one spindle cylinder assigned to the spindle-locking device is accommodated.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: April 17, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventor: Dietmar Saur
  • Patent number: 9935516
    Abstract: An inner-rotor motor for preventing the formation of an electrical conducting path between an iron core and a housing of the motor includes a stator and a rotor. The stator includes the housing, an insulating layer and the iron core. The insulating layer is arranged between the housing and the iron core and prevents the electrical conducting path from forming between the housing and the iron core. The rotor includes a shaft rotatably coupled with the housing, and a permanent magnet unit is arranged around the shaft.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: April 3, 2018
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Alex Horng, Tso-Kuo Yin, Chi-Min Wang
  • Patent number: 9882452
    Abstract: A power tool includes a housing, a motor, an output unit, and a circuit board unit. The motor is accommodated in the housing and has a rotational axis extending in a top-bottom direction. The output unit is disposed above the motor and extends in a front-rear direction. A power cable is configured to be connected to a power source and is connected to the circuit board unit. The circuit board unit is accommodated in the housing. The circuit board unit comprises a switching element for driving the motor, and a rectifying device configured to rectify an alternating current from the power source to a direct current. The circuit board unit is disposed below the motor and extends in the front-rear direction in the housing.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: January 30, 2018
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hiroshi Haga, Hideyuki Hashimoto, Hideyuki Tanimoto
  • Patent number: 9844869
    Abstract: A hand tool machine device with a drive unit comprising at least one drive shaft, a transmission unit including at least one transmission element, a cooling unit including at least one fan element, and at least one sealing element configured to seal the transmission unit in at least on axial direction. The at least one fan element includes at least one receiving region configured to at least partially receive the at least one sealing element.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: December 19, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Andre Ullrich, Holger Froehling
  • Patent number: 9819021
    Abstract: A magnesium electrochemical cell having a positive electrode containing as an active ingredient, a material of formula [V2O5]c [MaOb]d and/or a material of formula [V2O5]c[MaOb]d[MgXe]g in a metastable structural and morphological phase is provided. In the formulas M is an element selected from the group consisting of P, B, Si, Ge and Mo; and X is O or a halide.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: November 14, 2017
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Timothy S. Arthur, Fuminori Mizuno, Ruigang Zhang
  • Patent number: 9815184
    Abstract: The present disclosure relates to a linear actuator including drive means for driving a movable component assembly for actuating a tool controlled by an electronic module. In exemplary embodiments, the module comprises acquisition means for acquiring a quantity that is representative of the instantaneous force supplied by the drive means and/or the time derivative of this variable, and the electronic module is capable of controlling interruption means for interrupting the operation of the drive means if the variable does not exceed a first predetermined value during a first predetermined time period from the start of the driving of the movable component assembly, and/or if the derivative does not exceed a second predetermined value during the first predetermined time period from the start of the driving of the movable component assembly.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: November 14, 2017
    Assignee: VIRAX
    Inventor: Franck Da Rocha
  • Patent number: 9796073
    Abstract: A tool apparatus includes a substructure at least partially enclosing an electric motor, the electric motor in selective electric communication with a battery, a tool head in mechanical connection with the electric motor, a tool housing defining an inner cavity, wherein the housing is structured to receive the substructure within the inner cavity, and a superstructure having an inner taper configured to receive an outer taper of the tool housing to retain the tool housing relative to the substructure.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: October 24, 2017
    Assignee: Ingersoll-Rand Company
    Inventors: Jefferey Clifford Yaschur, Sean Christian Ely
  • Patent number: 9751203
    Abstract: An oscillating power tool includes a tool mount which can be articulated through a range of positions including less than zero degrees to ninety degrees. The tool mount can accept a variety of accessory tools which move in a reversing angular displacement as well as articulate throughout the range of positions. A locking mechanism is provided that can be manually actuated to prevent articulation or rotation of the articulator to thereby fix the tool mount to a pre-selected orientation.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: September 5, 2017
    Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbH
    Inventor: Peter J. Wierzchon
  • Patent number: 9748534
    Abstract: When a battery pack is mounted to a battery attachment part, the battery pack is slid in a horizontal direction (a direction substantially perpendicular to an upper-lower direction) with respect to the housing, e.g., along a long longitudinal direction of a battery-side rail part, such that tool-side rail parts of the battery attachment part are introduced into engaging recess portions of the battery pack. Thereby, the elastic members are fitted and compressed in the battery-side rail parts and the tool-side rail parts, so that the elastic members press upwards the battery-side rail part (e.g., the battery pack) and press downwards the tool-side rail parts (e.g., the housing). That is, the elastic members press the battery pack and the housing such that they come close to each other.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: August 29, 2017
    Assignee: HITACHI KOKI CO., LTD.
    Inventors: Hiroyuki Hanawa, Shota Takeuchi, Yoshihiro Nakano, Itsushi Ogawa, Kousei Yokoyama
  • Patent number: 9739486
    Abstract: A furnace assembly comprising a non-condensing furnace with a draft inducer. The draft inducer includes a permanent magnet electrically commutated motor and a draft inducer blower fan. The motor includes a stator, a rotor, a motor cooling fan, and a controller. The rotor being rotatable relative to the stator, the fan being operatively coupled to the rotor such that rotation of the rotor causes rotation of the fan, the controller being configured to selectively operate the motor in first and second different torque ranges of the rotor, with the first and second torque range operating within a fixed percentage and within a fixed percentage of each other. The controller being configured such during normal operation, the motor is not operable at any torques between the first torque range and the second torque range except during transitionary periods.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: August 22, 2017
    Assignee: Regal Beloit America, Inc.
    Inventors: Bobby D. Garrison, Michael D. Smith, Jeffrey J. Long
  • Patent number: 9707004
    Abstract: A surgical device comprising an end effector is disclosed. The surgical device comprises a trigger actuatable to cause the end effector to be energized and a circuit in communication with the trigger. The circuit is configured to, when a first level of force is applied to the trigger, drive the end effector at a first level, when a second level of force is applied to the trigger, drive the end effector at a second level, and, delay by a first period of time between indicating a change in the force applied to the trigger from the first level of force to the second level of force and a change from driving the end effector at the first level to driving the end effector at the second level, wherein the first period of time is sufficient to give a user a warning about the change in the force.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: July 18, 2017
    Assignee: Ethicon LLC
    Inventors: Kevin L. Houser, Stephanie J. Muir, Louis T. DeLuca, Daniel W. Price, William D. Boyd, Galen C. Robertson, Michael J. O'Neil
  • Patent number: 9694484
    Abstract: An electric machine tool includes a first actuating device and a second actuating device. The second actuating device is arranged at a distance from the first actuating device. The first actuating device is mechanically connected to the second actuating device by a switching connector which is configured to be loaded in tension only.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: July 4, 2017
    Assignee: Robert Bosch GmbH
    Inventor: Willy Braun
  • Patent number: 9642644
    Abstract: A surgical device. The surgical device may comprise a transducer configured to provide vibrations along a longitudinal axis and an end effector coupled to the transducer and extending from the transducer along the longitudinal axis. The surgical device also may comprise a lower jaw extending parallel to the end effector. The lower jaw may comprise a clamp face extending toward the longitudinal axis. Also, the lower jaw may be slidable relative to the end effector to bring the clamp face toward a distal end of the end effector.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: May 9, 2017
    Assignee: Ethicon Endo-Surgery, LLC
    Inventors: Kevin L. Houser, Stephanie J. Muir, Louis T. DeLuca, Daniel W. Price, William D. Boyd, Galen C. Robertson, Michael J. O'Neil
  • Patent number: 9631811
    Abstract: A furnace assembly comprising a non-condensing furnace with a draft inducer. The draft inducer includes a permanent magnet electrically commutated motor and a draft inducer blower fan. The motor includes a stator, a rotor, a motor cooling fan, and a controller. The rotor being rotatable relative to the stator, the fan being operatively coupled to the rotor such that rotation of the rotor causes rotation of the fan, the controller being configured to selectively operate the motor in first and second different torque ranges of the rotor, with the first and second torque range operating within a fixed percentage and within a fixed percentage of each other. The controller being configured such during normal operation, the motor is not operable at any torques between the first torque range and the second torque range except during transitionary periods.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: April 25, 2017
    Assignee: Regal Beloit America, Inc.
    Inventors: Bobby D. Garrison, Michael D. Smith, Jeffrey J. Long
  • Patent number: 9583746
    Abstract: An electric power tool comprises a main body supporting a tool and an electric motor housed in the main body for driving the tool. A plurality of first battery interfaces is configured to removably receive or attach a plurality of first battery packs and to electrically connect the plurality of attached first battery packs in series with the electric motor. A plurality of indicators is configured to communicate information concerning the respective conditions of the plurality of attached first battery packs. The plurality of indicators is arranged such that all of the indicators are simultaneously viewable by a user of the electric power tool.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: February 28, 2017
    Assignee: MAKITA CORPORATION
    Inventors: Tomoyuki Ota, Kiyoshi Nishibe, Hitoshi Suzuki
  • Patent number: 9537370
    Abstract: Hand-held machine tool having an outer housing extending substantially along a longitudinal axis, with an electric drive unit accommodated in this outer housing, and with a tool arrangement which is disposed at a first end of the electric drive unit. The outer housing of the machine tool has a defined inner contour and the electric drive unit and the tool arrangement have a defined outer contour. The outer contour and the inner contour of the outer housing are at a predetermined minimum spacing from each other. At least one inlet opening for cooling air is disposed in an end region of the outer housing. The electric drive unit drives a fan arrangement which draws in through the at least one inlet opening cooling air which flows substantially parallel to the rotational axis of the electric drive unit through the machine tool and flows out of the outer housing to the outside at the outer contour of the machine tool.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: January 3, 2017
    Assignee: C. & E. FEIN GMBH
    Inventors: Achim Hess, Uwe Früh, Jürgen Blickle
  • Patent number: 9526481
    Abstract: The invention relates to a power unit which is receivable in or at a medical handheld medical device in a disengageable manner, wherein the power unit includes at least a voltage source, a motor and/or a circuit board, wherein the power unit includes an arrangement for identifying which is configured to identify at least one feature of the medical handheld device and to emit a signal caused by the identified feature or based on the identified feature. The invention furthermore relates to a medical handheld device, comprising at least one power unit according to one of the preceding claims and/or at least one feature which is provided to be identified through the identification arrangement. The invention furthermore relates to an arrangement for identifying a medical handheld device that is connected with the power unit according to the invention.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: December 27, 2016
    Inventors: Olaf Storz, Andreas Schmal
  • Patent number: 9511490
    Abstract: A hand power tool device includes at least one drive unit, which has at least one drive shaft. The hand power tool device also includes at least one transmission unit which has at least one transmission element that is directly connected to the drive shaft. The hand power tool device also includes at least one cooling unit which has a fan element. The fan element is at least substantially directly connected to the at least one transmission element of the at least one transmission unit.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: December 6, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Andre Ullrich, Holger Ruebsaamen