With Means To Reciprocate Saw Patents (Class 30/392)
  • Patent number: 11033973
    Abstract: A reciprocating saw includes a housing, a motor positioned within the housing, a drive shaft defining a longitudinal axis, and a spindle positioned substantially within the housing and coupled to a wobble plate. The spindle includes a throughbore formed by a flow welding process, wherein the throughbore extends through the spindle to receive the wobble plate.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: June 15, 2021
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Leo Mikat-Stevens, Kyle W. Schultz
  • Patent number: 10912707
    Abstract: A massage device that includes a housing, an electrical input, a motor, a switch in electrical communication with the electrical input and the motor and configured to selectively provide power from the electrical input to the motor, an actuated output operatively connected to the motor and configured to reciprocate in response to activation of the motor, and a treatment structure operatively connected to a distal end of the actuated output. The actuated output is configured to reciprocate the treatment structure at a frequency of between about 15 Hz and about 100 Hz, and at an amplitude of between about 0.15 and about 1.0 inches. The combination of amplitude and frequency provides efficient reciprocation of the treatment structure such that the treatment structure provides therapeutically beneficial treatment to a targeted muscle of a user.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: February 9, 2021
    Assignee: THERAGUN, INC.
    Inventors: Jason Wersland, Benjamin Nazarian, Geert Ensing, Guang Qing Li, Robert Firth, Andrew Linton, Andrew Cooper, Michael Waldron
  • Patent number: 10875110
    Abstract: A power tool includes a housing, a motor, and a drive mechanism. The drive mechanism includes a driven gear that is rotated by the motor. The driven gear is vertically-oriented within the housing and has an upper portion and a lower portion. The drive mechanism also includes a connecting rod coupled to the driven gear to translate rotary motion of the driven gear into reciprocating motion, and an output shaft coupled to the connecting rod to reciprocate relative to the housing through a cutting stroke and a return stroke. The drive mechanism further includes a counterweight coupled to the driven gear for rotation with the driven gear. The counterweight moves through the upper portion of the driven gear during the cutting stroke of the output shaft, and moves through the lower portion of the driven gear during a return stroke of the output shaft.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: December 29, 2020
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Joshua Adams, Ryan J. Denissen
  • Patent number: 10850338
    Abstract: An electric power tool includes a drive device for providing a driving force, a rotation wheel that has a central axis and is driven by the drive device to rotate around the central axis, a spindle that supports a tool holder configured to hold a tool of the electric power tool, a first intermediate member, a second intermediate member, and a counterweight device. The first intermediate member is offset from the central axis of the rotation wheel, and revolves around the central axis when driven by the rotating rotation wheel, while driving the spindle to reciprocate in a first direction. The second intermediate member is driven by the first intermediate member to rotate around the central axis and is disposed to be offset from the central axis of the rotation wheel on the side opposite the first intermediate member. The counterweight device is driven by the second intermediate member.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: December 1, 2020
    Assignees: Bosch Power Tools (China) Co., Ltd., Robert Bosch GmbH
    Inventor: Weixin Zheng
  • Patent number: 10840733
    Abstract: The innovation disclosed and claimed herein, in at least one aspect thereof, comprises continuously charging a cell phone while the user utilizes the cellular phone for ordinary activities (e.g. posting to social media sites, texting, talking, etc.). The signals from routine cellular phone operations will send signals to a photocoupler or other dedicated sensor. The dedicated sensor will output current to drive a magnet mechanism which will in turn drive a fan that generates current to charge to a super/ultra-capacitor.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: November 17, 2020
    Inventor: Tiarra Barton
  • Patent number: 10799968
    Abstract: A saw blade includes a blade base with an arcuate cutting edge. The cutting edge is curved to a lesser extent than a circular arc with a radius that corresponds to the distance between the axis of rotation of the saw blade and the cutting edge.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: October 13, 2020
    Assignee: Robert Bosch GmbH
    Inventor: Milan Bozic
  • Patent number: 10622822
    Abstract: The innovation disclosed and claimed herein, in at least one aspect thereof, comprises continuously charging a cell phone while the user utilizes the cellular phone for ordinary activities (e.g. posting to social media sites, texting, talking, etc.). The signals from routine cellular phone operations will send signals to a photocoupler or other dedicated sensor. The dedicated sensor will output current to drive a magnet mechanism which will in turn drive a fan that generates current to charge to a super/ultra-capacitor.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: April 14, 2020
    Inventor: Tiarra Barton
  • Patent number: 10576652
    Abstract: An oscillating power tool includes a drive motor producing rotary motion and an actuator for converting the motor rotary motion to an oscillatory side-to-side movement. The power tool includes a tool mount operably driven by the actuator and configured to support the tool so that the working end is substantially collinear and/or coplanar with the axis of the motor drive shaft.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: March 3, 2020
    Assignees: Robert Bosch GmbH, Robert Bosch Tool Corporation
    Inventor: Peter J. Wierzchon
  • Patent number: 10537356
    Abstract: An exemplary hand-held, power operated rotary knife dermatome comprises a blade housing assembly and a depth gauge assembly. The blade housing assembly includes an annular blade housing and a blade lock ring for rotatably supporting an annular rotary knife blade. The annular blade housing includes a shield extending radially inwardly from a blade receiving body and including an inner wall defining a tissue directing surface, the tissue directing surface including a first tissue guide surface extending upwardly from a lower end of the shield, the first tissue guide surface extending substantially parallel to the blade housing axially extending center line. The blade receiving body includes an annular blade channel extending axially upwardly from a lower surface of the blade receiving body, a bearing surface axially spaced from a lower surface of the blade receiving body, and a threaded portion formed on the outer surface of the annular blade housing.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: January 21, 2020
    Assignee: Exsurco Medical, Inc.
    Inventors: Bernard J. Esarey, Jason A. Sukey, Jeffrey A. Whited
  • Patent number: 10511208
    Abstract: A reciprocating tool includes a motor, a reciprocating member, and a crank mechanism. The motor is disposed in a housing. The reciprocating member projects from the housing. The crank mechanism converts rotation of a rotation shaft of the motor into reciprocation of the reciprocating member. The crank mechanism rotates around an axis in a lateral direction by rotation transmission from the rotation shaft, and the crank mechanism includes a crank member having an eccentric pin, a connecting rod coupling the eccentric pin to the reciprocating member, and a balancer coupled to the eccentric pin, and the balancer is supported by the eccentric pin alone in the housing.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: December 17, 2019
    Assignee: MAKITA CORPORATION
    Inventors: Ryosuke Hara, Tomohiro Ukai
  • Patent number: 10477747
    Abstract: A component placement device is provided. The component placement device includes a machine frame, a subframe supported by the machine frame, and a component pickup unit. The component pickup unit is movable relative to the subframe. The component pickup unit is movable by a first drive at least in a direction of movement. The component placement device includes a movable counter-mass being movable relative to the subframe by a second drive in a direction opposite to the direction of movement of the component pickup unit to at least partially counteract a reactive force exerted on the subframe by the component pickup unit during movement of the component pickup unit in the direction of movement relative to the subframe.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: November 12, 2019
    Assignee: Assembléon B.V.
    Inventor: Richard Adrianus Johannes van der Burg
  • Patent number: 10442070
    Abstract: Disclosed is a hand-held electric tool, in which a main shaft (1) swings back and forth around an axis (11) to drive accessories (9) of the tool to carry out various types of operations. A swing device is provided with an eccentric element (41) capable of reducing the shock caused to a shell (7) by a connecting rod component (3). Another shell (6) is provided with a valve device (5) used for adjusting the flow of air current in different air ducts. The accessories (9) of the tool can be cooled or cleaned through the air current in one of the air ducts. The main shaft (1) is provided with an elastic support (2) used for balancing the load when an electrical motor (8) is operating. The elastic support (2) can replace a bearing in supporting the main shaft (1) swinging back and forth around the axis (11).
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: October 15, 2019
    Inventor: Guicai Qin
  • Patent number: 10406713
    Abstract: To provide an easy-to-use electric chainsaw that uses, in place of a large battery pack with a high voltage rating that would have been used in conventional electric chainsaws, a battery power source composed of a set of small commonly used battery packs of the same rating. An electric chainsaw having a built-in electric motor that is powered by a rechargeable battery, wherein a set of commonly used battery packs of the same rating is used as the rechargeable battery. The set of battery packs is mounted at the back of the main housing so that the center of gravity (G) of the chainsaw is positioned within a range (R) of 1.5 time the width (W) of the grip section of a rear handle between the left and right sides of a center line that is centered in the horizontal direction.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: September 10, 2019
    Assignee: MAKITA CORPORATION
    Inventors: Koji Haneda, Hideki Kachi, Yasuyuki Kawabata
  • Patent number: 10335874
    Abstract: A reciprocating tool with a reduced number of parts is provided. A jigsaw reciprocates a saw blade in a direction along an axis with the power of an electric motor. The jigsaw includes a housing accommodating the electric motor, a guide member fixed to the housing and provided along the axis, a connector member sandwiching the guide member and reciprocating when the power of the electric motor is transmitted thereto, and a plunger attached to the connector member and holding the saw blade.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: July 2, 2019
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventor: Satoshi Iwata
  • Patent number: 10272506
    Abstract: In accordance with one embodiment, a reciprocating saw includes a housing, a plunger at least partially positioned within the housing and configured to reciprocate with respect to the housing along a plunger axis, a wobble plate assembly operably connected to the plunger and a motor, a first guide rail supported by the housing and extending longitudinally along the plunger axis, and a spherical component in contact with the first guide rail, the spherical component and the first guide rail configured to inhibit rotation of the wobble plate assembly.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: April 30, 2019
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Robert Doumani, Jaime Moreno, Ronald Arvey
  • Patent number: 10144074
    Abstract: In accordance with one embodiment, a reciprocating saw includes a housing, a spindle shaft configured to reciprocate within the housing, the spindle shaft including a plurality of first grooves extending along an axis of the spindle shaft, a locking bushing including an internal bore, the locking bushing supported by the housing such that the plurality of first grooves is at least partially located within the internal bore, the locking bushing including a plurality of axially extending grooves within the internal bore, each of the plurality of axially extending grooves aligned with a respective one of the plurality of first grooves, and a plurality of first ball bearings, each of the plurality of first ball bearings positioned at least partially within a respective one of the plurality of axially extending grooves and the aligned respective one of the plurality of first grooves.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: December 4, 2018
    Assignee: Nanjing Chervon Indusrty Co., Ltd.
    Inventor: Robert Doumani
  • Patent number: 10027201
    Abstract: A reciprocating tool includes a motor, a reciprocating member, and a crank mechanism. The motor is disposed in a housing. The reciprocating member projects from the housing. The crank mechanism converts rotation of a rotation shaft of the motor into reciprocation of the reciprocating member. The crank mechanism rotates around an axis ma lateral direction by rotation transmission from the rotation, shaft, and the crank, mechanism includes a crank member having an eccentric pin, a connecting rod coupling the eccentric pin to the reciprocating member, and a balancer coupled to the eccentric pin, and the balancer is supported by the eccentric pin alone in the housing.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: July 17, 2018
    Assignee: MAKITA CORPORATION
    Inventors: Ryosuke Hara, Tomohiro Ukai
  • Patent number: 9919411
    Abstract: A power tool includes a housing having a front portion and a handle portion. The front portion defines a cavity that encloses a motor and includes a gripping portion surrounding the cavity. An insulating cover is provided on the gripping portion of the housing and includes a gripping surface. A thermoelectric cooling unit is located between the gripping portion of the housing and the insulating cover. The thermoelectric cooling unit has a cold side positioned in thermal contact with an inner surface of the insulating cover and a hot side positioned in contact with an outer surface of the gripping portion of the housing. The thermoelectric cooling unit is configured to absorb thermal energy from the insulating cover via the cold side of the thermoelectric cooling unit and to release the absorbed heat via the hot side of the thermoelectric cooling unit.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: March 20, 2018
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Patrick M. McAuliffe, Roger N. Amrol, Jr.
  • Patent number: 9901960
    Abstract: An accessory configured for use with a reciprocating saw having a spindle. The accessory is configured to reciprocate with the spindle. The accessory includes an attachment portion having a tang including a first tang member and a second tang member and an aperture that extends through the attachment portion from a first broad side to a second broad side. The attachment portion also includes a first radius, which terminates to define a projection, located on a first narrow side. The attachment portion also includes a second radius, which terminates to define a projection, located on a second narrow side. The first radius and the second radius are configured to contact an exterior of the spindle.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: February 27, 2018
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventor: Sean T. Kehoe
  • Patent number: 9833850
    Abstract: A hand-held power tool drive device includes at least one wobble drive unit that has at least one rotatably mounted drive element, with at least one wobble unit positioned on the at least one drive element. The drive device also includes at least one counterweight unit that has at least one movably mounted compensating element configured to be driven by the at least one wobble unit. The at least one wobble unit includes at least one force application point that is configured to drive the at least one compensating element. An axis extending through a rotational axis of the at least one drive element and the at least one force application point encloses an angle of between 0° and 135° with a wobble element longitudinal axis of a wobble element of the at least one wobble unit.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: December 5, 2017
    Assignee: Robert Bosch GmbH
    Inventor: Hardy Schmid
  • Patent number: 9782225
    Abstract: A surgical instrument arrangement has a modular motor drive unit which has a drive arrangement having at least one output element, an instrument shaft that can be detachably connected to the drive unit, and a drive arrangement having at least one input drive element. The output drive arrangement and the input drive arrangement can be coupled to each other by a mechanical interface that has at least one single-sided linkage, a pin, and a cut-out, wherein the pin can be radially expanded in the cut-out. Alternatively, a gap may be formed between the pin and the cut-out, which gap is wavy in the radial direction, and in which a radially displaceable, axially fixed intermediate element arrangement is arranged. The surgical instrument arrangement may also include a sterile barrier, which is provided to envelop the drive unit and to be arranged between the drive unit and the instrument shaft.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: October 10, 2017
    Assignee: KUKA Roboter GmbH
    Inventors: Sebastian Lohmeier, Wolfgang Schober, Sven Brudniok
  • Patent number: 9723794
    Abstract: A power tool includes a housing, a blade assembly, a drive assembly within the housing for driving the blade assembly, and a cover that is coupled to the power tool and is movable between at least two positions. The blade assembly is fixedly retained by the power tool when the cover is in a first position and is detachable from the power tool when the cover is in a second position. The cover has tool-less means for coupling the blade assembly to the cover when the cover is in a second position.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: August 8, 2017
    Assignee: Robert Bosch GmbH
    Inventor: Robert Soltesz
  • Patent number: 9421625
    Abstract: A reciprocating power tool has a shoe that can be adjusted while the reciprocating power tool is in use. The reciprocating power tool has a main body, a first grip, a second grip moveable with respect to the main body, and a shoe for engaging a workpiece. The shoe is coupled to the second grip such that the shoe moves with the second grip for adjustment of a position of the shoe when the second grip is moved with respect to the main body.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: August 23, 2016
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventor: David A. Selby
  • Patent number: 9248517
    Abstract: A saber saw including: a motor; a housing accommodating the motor; a plunger held to be reciprocatable in the housing and to which a blade is mounted at a leading end thereof, and a movement converting part provided between the motor and the plunger and is configured to convert rotation movement of the motor into reciprocating movement of the plunger, wherein a bearing metal is fixed to an outer peripheral surface of the plunger.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: February 2, 2016
    Assignee: HITACHI KOKI CO., LTD.
    Inventor: Masahiro Fujiwara
  • Patent number: 9038275
    Abstract: A dust shroud for reciprocating saws has a shroud body with bristles, a vacuum port and an attachment collar attached to the shroud body. The shroud has a slot formed through the collar and shroud body and is expandable and collapsible to fit different sizes of reciprocating saws.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: May 26, 2015
    Assignee: Dustless Depot, LLC
    Inventors: Stanford Jensen, Spencer Loveless
  • Publication number: 20150135543
    Abstract: A pneumatic valve assembly with a trigger for switching the pneumatic valve assembly between two or more valve operation modes is disclosed herein. The valve operational modes are determined by selection of fluid conduits by a trigger valve assembly of the pneumatic valve assembly which interconnects fluid conduits to a main valve, pilot valves and a pneumatic cylinder of a fluid powered pole saw and wherein a piston located in the pneumatic cylinder is mechanically coupled to a cutting blade of the pole saw and the trigger is operatively coupled to the trigger valve assembly.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 21, 2015
    Inventor: Ronald Alan Gatten
  • Publication number: 20150113815
    Abstract: A power tool can have a compact power tool handle. A compact power tool handle can be used in a jigsaw, or any other power tool with a handle. Optionally, the power tool can have a compact power tool handle which has an AC compact variable switch which can control the speed of a motor of the power tool.
    Type: Application
    Filed: September 8, 2014
    Publication date: April 30, 2015
    Applicant: Black & Decker Inc.
    Inventors: Jason C. McRoberts, David A. Miller, Oleksiy P. Sergyeyenko
  • Publication number: 20150107123
    Abstract: A hand-guided jig saw includes a tool housing that houses a drive motor. The drive motor is configured to drive a reciprocating transmission that drives a reciprocating unit connected to a tool receptacle. A vertical axis of the tool receptacle saw is configured to receive a saw blade. In order to enable at least partial free cutting of the saw blade for forming a sawing passage in a workpiece, the tool receptacle, via an electromechanical actuating system, is pivotable by a pre-defined angle about a vertical axis. A pivoting movement of the saw blade is superimposed by at least a reciprocating movement of the tool receptacle.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 23, 2015
    Inventors: Nicolas Klotz, Ulli Hoffmann
  • Publication number: 20150059192
    Abstract: A power tool clamping device comprises at least one clamping unit having at least one movably mounted force-fit clamping plane element and at least one actuating element configured to move the at least one force-fit clamping plane element to clamp a working tool at least in a clamping position. The at least one actuating element is mounted movably relative to the at least one force-fit clamping plane element along at least two at least substantially mutually transverse movement directions of the at least one actuating element.
    Type: Application
    Filed: February 20, 2013
    Publication date: March 5, 2015
    Applicant: Robert Bosch GmbH
    Inventor: Giuseppe Fragapane
  • Patent number: 8966773
    Abstract: A power tool includes a tool operable to work on a workpiece, a drive mechanism coupled to the tool and operable to move the tool, and a housing defining an interior. The drive mechanism is disposed within the interior. A handle has a first end and a second end. The first end is fixed to the housing and the second end is spaced apart from the housing to define a gap therebetween. An insert is fixedly attached to the housing and the second end to fill the gap. The insert is more flexible then the handle and the housing.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: March 3, 2015
    Assignee: Techtronic Power Tools Technology Limited
    Inventor: Brent Gregorich
  • Patent number: 8960323
    Abstract: An improved vibration dampening system has been developed for handheld electrical power tools. The vibration dampening system includes a material that a controller selectively activates with an electrical current to increase the rigidity of the material and dampen random vibrations detected by the controller. The material is positioned between a foot member that helps support the tool against a work piece and both hand grips for the tool. Thus, the vibration dampening system reduces the impact of random vibrations on both hands of an operator.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: February 24, 2015
    Assignee: Robert Bosch GmbH
    Inventor: Stephen C. Oberheim
  • Publication number: 20150047211
    Abstract: A pneumatically powered pole saw is provided, the pole saw having gas actuated main valves configured for movement between first positions and second positions wherein the gas actuated main valves are located in a main valves assembly fluidly coupled to the piston chamber; and a first pilot valve is configured to send actuating gas through a conduit to the main valves assembly and a second pilot valve is configured to send actuating gas through a conduit to the main valves assembly wherein the cutting blade moves in opposite directions in response to the actuating gas of the first and second pilot valves.
    Type: Application
    Filed: April 15, 2013
    Publication date: February 19, 2015
    Inventor: Ronald Alan GATTEN
  • Publication number: 20150033565
    Abstract: A reciprocating drive mechanism for a power tool includes a rotatably mounted transmission shaft that has a first central axis, a spindle with a spindle body, and a counterweight for linearly reciprocating motion under the guide of at least one guiding rod. A wobble plate is mounted on the transmission shaft and includes a first arm and second arms extending in opposite directions. The first arm and second arms are configured to cooperate with the spindle and the counterweight respectively so that, upon rotation of the transmission shaft, the first and second arms of the wobble plate drive the spindle and the counterweight to reciprocate in opposite directions parallel to the second central axis. An angle is formed between the extending direction of the first arm and the second arm and a plane defined by the first central axis and the second central axis.
    Type: Application
    Filed: August 1, 2014
    Publication date: February 5, 2015
    Inventor: Yanchao Wang
  • Publication number: 20150033564
    Abstract: To provide a reciprocating tool capable of reducing noise by a simple and inexpensive configuration. In a reciprocating tool including a motor that is a rotary drive source, and a reciprocating motion converter that converts the rotation of the motor into the reciprocation of a tip tool, the reciprocating motion converter includes an eccentric rotation member that eccentrically rotates, a reciprocating member that is engaged with the eccentric rotation member and reciprocates, and an elastic member provided between the eccentric rotation member and the reciprocating member. Inside the reciprocating member, an intermediate member is provided, and the elastic member is interposed between the intermediate member and the reciprocating member.
    Type: Application
    Filed: August 27, 2012
    Publication date: February 5, 2015
    Inventor: Kenji Kobori
  • Patent number: 8939052
    Abstract: A pneumatically powered pole saw is provided, the pole saw having gas actuated main valves configured for movement between first positions and second positions wherein the gas actuated main valves are located in a main valves assembly fluidly coupled to the piston chamber; and a first pilot valve is configured to send actuating gas through a conduit to the main valves assembly and a second pilot valve is configured to send actuating gas through a conduit to the main valves assembly wherein the cutting blade moves in opposite directions in response to the actuating gas of the first and second pilot valves.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: January 27, 2015
    Inventor: Ronald Alan Gatten
  • Patent number: 8931574
    Abstract: A lubrication structure for a working machine is provided. A driven gear that engages with a driving gear connected to a driving source and rotates, is accommodated in a chamber in a case. An eccentric cam is provided on a surface of the driven gear, and connected to a coupling pin in a blade through a crank member. A fitting ring part is provided in one end of the crank member, and the eccentric cam is inserted into the fitting ring part so as to rotate relative to the fitting ring part. An annular groove is formed on the inner surface of the fitting ring part which faces the outer surface of the eccentric cam. The annular groove communicates with a first chamber via a first lubricating passageway and also communicates with a second chamber via a second lubricating passageway.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: January 13, 2015
    Assignee: Makita Corporation
    Inventor: Koji Watanabe
  • Patent number: 8926410
    Abstract: A reciprocating saw blade has a first end with a first tang and a second end with a second tang. The first and second tangs are alternatively engageable with the chuck of a reciprocating saw. The reciprocating saw blade defines a substantially uniform cutting edge extending from approximately the first end to approximately the second end of the blade. The first tang is engageable with the chuck of the reciprocating saw for fixedly securing the first end of the blade to the reciprocating saw and forming with the second tang the free end of the saw blade. Alternatively, the second tang is engageable with the chuck of the reciprocating saw for fixedly securing the second end of the blade to the reciprocating saw and forming with the first tang the free end of the reciprocating saw blade drivable in a reciprocating motion by the reciprocating saw.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: January 6, 2015
    Assignee: Irwin Industrial Tool Company
    Inventors: Charles Kalomeris, Matthew Savarino
  • Patent number: 8925208
    Abstract: The disclosure provides a transverse guide of a saw blade for a machine tool, particularly for a hand-guided machine tool in the form of a band saw or jigsaw, wherein the saw blade can be rotated about the longitudinal axis thereof by way of said guide in the opposite direction to said forces as a function of transverse and/or torsional forces acting on the saw blade.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: January 6, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Stefano Delfini, Thilo Koeder, Joachim Platzer, Ulli Hoffmann
  • Patent number: 8919787
    Abstract: An attachment apparatus for a reciprocating tool provides a tool holder having an angled bracket and a guide rod extending from the angled bracket. The guide rod can engage a travel slot on the reciprocating tool. An instrument such as a saw blade can be attached to the angled bracket or guide rod. The guide rod stabilizes the instrument during use. The travel slot can be defined integrally on the reciprocating tool or on an attachment to the tool. In some embodiments, a neck mount assembly is attached to the neck on the reciprocating tool. The neck mount assembly can include a frame and a guide plate. The guide plate can include a travel slot shaped for receiving the guide rod.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: December 30, 2014
    Inventor: James Timothy Wilcher
  • Publication number: 20140360029
    Abstract: A reciprocating saw including an outer housing positioned along a longitudinal axis of the reciprocating saw. The reciprocating saw also includes a motor casing covering a portion of a motor, and a gear casing positioned within the outer housing and coupled to the motor casing. A rib is formed on either one of the gear casing and the outer housing, and the rib extends substantially parallel to the longitudinal axis. In addition, a window is formed in either one of the outer housing and the motor casing. The rib forms an egress path between the gear casing and the outer housing in communication with the window.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 11, 2014
    Inventors: Joshua Adams, Ryan J. Denissen
  • Patent number: 8893393
    Abstract: A power tool including a sliding member slidably received in the power tool and a pair of lock plates, each of the pair of lock plates including an opening, and the lock plates being configured such that the sliding member slides within the opening. First ends of each of the lock plates are pivotably attached to a support at a first side of the sliding member, and second ends of each of the lock plates being biased toward one another at an opposite side of the sliding member. A first contact portion of the lock plate contacts a first surface of the sliding member at the first side of the sliding member, and a second contact portion of the lock plate contacts a second surface of the sliding member at the opposite side of the sliding member, wherein the sliding member is secured with respect to the support.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: November 25, 2014
    Assignee: Black & Decker, Inc.
    Inventors: Brent A Kuehne, Mark D Miller, John S Vantran
  • Publication number: 20140331506
    Abstract: A jigsaw includes a motor, a rod having a blade attached thereto, a power transmission portion that converts rotation transmitted from the motor to vertical movement of the rod to vertically move the blade, and a counterweight that moves vertically in a direction of the vertical movement of the rod outside a range of the vertical, movement of the rod and the blade. At least a part of the counterweight is disposed so as to cross an extended line of a trajectory of the vertical movement of the rod. The counterweight moves vertically independently of the vertical movement of the rod which is produced by the power transmission portion.
    Type: Application
    Filed: April 18, 2014
    Publication date: November 13, 2014
    Applicant: MAKITA CORPORATION
    Inventors: Fumihide SUGITA, Toshiyuki KANI, Kenji ABE, Kenta NIWA
  • Patent number: 8881409
    Abstract: An oscillating power tool includes a tool head which can be articulated through a range of positions including zero to ninety degrees. The tool head can accept a variety of accessory tools which move in a reversing angular displacement as well as articulate throughout the range of positions.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: November 11, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Brian Haman
  • Publication number: 20140325854
    Abstract: A hand tool machine includes a tool receiving device configured to receive an application tool. The tool receiving device is allocated a mechanically actuated locking element in order to lock the application tool in the tool receiving device. The hand tool machine also includes an electric actuator system configured to mechanically actuate the locking element.
    Type: Application
    Filed: April 29, 2014
    Publication date: November 6, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Andre Hoffmann, Michael Laett
  • Publication number: 20140325855
    Abstract: A saw blade includes a blade base with an arcuate cutting edge. The cutting edge is curved to a lesser extent than a circular arc with a radius that corresponds to the distance between the axis of rotation of the saw blade and the cutting edge.
    Type: Application
    Filed: July 16, 2012
    Publication date: November 6, 2014
    Applicant: Robert Bosch GmbH
    Inventor: Milan Bozic
  • Patent number: 8857066
    Abstract: A power saw includes an electric motor, an impact assembly, and a blade retaining assembly. The impact assembly is coupled to an output shaft and includes a hammer member and an anvil member. The blade retaining assembly is coupled to the impact assembly and includes a blade coupling configured to connect to a saw blade. The impact assembly is configured to operate in a first mode when a mechanical load on the blade retaining assembly is below a threshold value. The impact assembly is configured to operate in a second mode when the mechanical load on the blade retaining assembly is greater than or equal to the threshold value. The hammer member is maintained in a fixed position relative to the anvil member when the impact assembly operates in the first mode. The hammer member intermittently impacts the anvil member when the impact assembly operates in the second mode.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: October 14, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Brian Haman
  • Patent number: 8858559
    Abstract: A surgical system for cutting tissue of a patient includes an outer housing and a reciprocating assembly structurally configured to carry a cutting tool in a reciprocating motion. An actuator knob is manually accessible to the user and may be fixed axially to the outer housing. The reciprocating assembly may reciprocate relative to the actuator knob. The actuator knob may be configured for rotational movement between a lock position and an unlock position. The system may also include a locking mechanism configured to retain a cutting tool within the reciprocating assembly. The locking mechanism may be responsive to movement of the actuator knob to maintain the tool within the output shaft when the actuator knob is in the lock position and permit removal of the tool when the actuator knob is in the unlock position. Surgical cutting tools, such as blades include thickness enhancing features.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: October 14, 2014
    Assignee: Medtronic PS Medical, Inc.
    Inventors: Thaddeus Scott Milburn, Bret Randal Hauser, R. Mitchell Sherry, S. Shane Dexter
  • Patent number: 8857067
    Abstract: A saw assembly includes a housing, a motor, a worm gear, and a drive member. The housing defines an interior space. The motor is positioned in the housing and has a motor shaft, the motor being configured to rotate the motor shaft about a first axis. The worm gear is positioned in the housing and has a worm gear shaft. Rotation of the motor shaft causes rotation of the worm gear shaft. The drive member is operatively coupled to the worm gear. Rotation of the worm gear shaft causes movement of the drive member in a repeating pattern. The worm gear shaft includes a bore structure defining a blind bore and an opening leading to the blind bore. The bore structure defines a set of internal threads that are spaced apart from the opening. The motor shaft includes a set of external threads.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: October 14, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Jaime Moreno
  • Publication number: 20140259701
    Abstract: In one embodiment, a reciprocating tool includes a reciprocating plunger, a motor operably connected to the plunger, a cam portion operably connected to the motor, a cam follower operably connected to the reciprocating plunger, and a biasing assembly configured to bias the cam follower toward the cam portion, the biasing assembly including an outer biasing member and an inner biasing member, the inner biasing member in contact with an inner portion of the outer biasing member.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicants: ROBERT BOSCH GMBH, ROBERT BOSCH TOOL CORPORATION
    Inventor: Stephen C. Oberheim
  • Patent number: 8826547
    Abstract: Embodiments are disclosed for a reciprocating saw that comprises a housing, a drive mechanism in the housing, a motor in the housing for driving the drive mechanism, an elongated plunger located in the housing for reciprocating motion and having a front end portion for attaching a saw blade for cutting material, the saw having an energy absorbing compliant configuration at least partially isolating a portion of the plunger and the drive mechanism from high energy impulses that can be produced by the saw blade being bound in the material being sawed during operation of the saw.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: September 9, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Stephen C. Oberheim