Ball Or Roller Jaws Patents (Class 279/75)
  • Patent number: 10661354
    Abstract: Holder for a rotary tool which holder is formed with a holder body comprising a rear drive end and a front connection end having a connection thread for the connection of the tool. The holder comprises a thrust collar having a flat contact surface facing a connection end of the holder. The holder comprises an axially movable operating means, a number of restraint elements placed in one or more spaces in the holder body which restraint elements in a first axial position of the operating means are prevented from radial movement in said spaces and which restraint elements in a second axial position of the operating means allow radial movement in said spaces. Each one of said spaces for the restraint elements is limited in the axial direction by a front limiting wall and a rear limiting wall, which two limiting walls are parts of the holder body.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: May 26, 2020
    Assignee: KAPMAN AB
    Inventors: Erik Grindlund, Per Holm, Tomas Ivner, Nils Classon
  • Patent number: 10549357
    Abstract: A mandrel assembly includes a mandrel, adapter, and bit coupler. The mandrel includes a shank part axially disposed in the mandrel, an adapter receiver, and a coupler receiver. An internal hole runs axially through the adapter. The coupler includes first and second axial sections, and an axial bit connection hole with a polygonal section proximate to an inner side, and a cylindrical section proximate to an opening. An outer wall of the adapter fits with an inner wall of the adapter receiver. An outer wall of the first section fits with an inner wall of the coupler receiver. An outer wall of the second coupler fits with the internal hole of the adapter. The mandrel transmits torque, via the adapter receiver and coupler receiver, to the adapter and then to a hole saw coupled to the adapter, and to the coupler and then to a bit coupled to the coupler.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: February 4, 2020
    Assignee: Bosch Power Tools (China) Co., Ltd.
    Inventors: Daniel Grolimund, Donghui Ding
  • Patent number: 10532412
    Abstract: A cutting tool includes a hole saw, a pilot bit, and an arbor assembly. The assembly includes a shank having a first end and a second end. The first end of the shank is removably coupled to the hole saw and to the pilot bit, and the second end of the shank is configured to be coupled to a power tool. The assembly also includes a sleeve moveable along the shank and a first ball bearing disposed on the sleeve. The first ball bearing engages the hole saw to releasably secure the hole saw to the shank. The assembly includes a second ball bearing disposed on the shank. The second ball bearing engages the pilot bit to releasably secure the pilot bit to the shank. When the sleeve moves toward the second end of the shank, the first and second ball bearings disengage the hole saw and the pilot bit.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: January 14, 2020
    Assignee: Milwaukee Electric Tool Corporation
    Inventor: Bryan C. Ward
  • Patent number: 10253797
    Abstract: A mechanical coupling for rotary devices, whereby a wind vane or other rotary tool, can be replaced without the use of a tool. In a preferred embodiment, the invention provides a coupling arrangement for a rotary device and a spindle supported for rotation, the coupling being enabled by a resilient body which acts upon a spheroidal locking member such as a ball bearing. In particular, the present invention provides a coupling arrangement for a wind vane or an anemometer rotating body comprising impeller cups, which impeller cups and rotating body are required for removable fitment, without the use of tools.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: April 9, 2019
    Assignee: WINDSPEED LIMITED
    Inventor: Richard John Parry Jones
  • Patent number: 10245646
    Abstract: A quick detachable and adjustable magnetic seat for sleeve includes a magnetic device and a detachable positioning device. The magnetic device includes a first end and a second end. The first end is magnetic. The detachable positioning device includes a connecting end slidably disposed on the second end of the magnetic device, such that the magnetic device axially slides against the detachable positioning device. The detachable positioning device further includes a resilient quick detach device disposed on one end of the detachable positioning device away from the connecting end, whereby the detachable positioning device is removably disposed in a sleeve. Therefore, when the sleeve is damaged or broken, the adjustable magnetic seat is efficiently removed from the sleeve and re-installed in a new sleeve replacement.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: April 2, 2019
    Inventor: Bobby Hu
  • Patent number: 10206691
    Abstract: Disclosed is an assembly for holding a tool. The assembly may selectively reduce and/or eliminate vibrations received and felt by a user. Reducing vibrations may reduce or eliminate chatter at a working end of a tool.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: February 19, 2019
    Assignee: Medtronic Xomed, Inc.
    Inventors: Bret Hauser, Thaddeus S. Milburn
  • Patent number: 10150212
    Abstract: A hand tool includes a handle having a room defined therein. A first and second lugs extend from the front end of the handle. A space is defined between the first and second lugs and communicates with the room. A working part is to be connected with a bit, and has a pivotal portion which is pivotably connected between the two lugs. A plate is connected to at least one of the first and second lugs, and has multiple first recesses and a second recesses. A positioning member is located between the pivotal portion and the plate so as to be engaged with one of the first and second recesses to position an angular position of working part. The working part is able to be pivoted and received in the room in the handle.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: December 11, 2018
    Assignees: Easy Tool Enterprise Co., Ltd.
    Inventor: Hung-Chao Yu
  • Patent number: 10112239
    Abstract: A tool holder is disclosed. The tool holder has a tubular main part, a locking element, which lies in the first radial channel of the main part, and an actuating sleeve which can be moved between a removal position and a locking position. The main part has a depression on the outside and a second radial channel which passes into the receiving area starting from the depression. The actuating sleeve has a radially pre-tensioned latching element which engages into the depression in the removal position. An ejection element is guided in the second radial element where the ejection element is pushable by the latching element into a position which partially protrudes into the receiving area and where the ejection element displaces the latching element out of the depression when the ejection element is moved to a position which is retracted from the receiving area.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: October 30, 2018
    Assignee: Hilti Aktiengesellschaft
    Inventor: Kevin Hoelz
  • Patent number: 10052696
    Abstract: A drill chuck assembly. The drill chuck assembly includes a rapid change mechanism configured to retain a drill bit shank inserted therein. The drill chuck assembly includes a body having a bore with a trilobe cross-section that is configured to receive a triangular and hexagonally shaped drill bit shank, interchangeably. The bore includes a slot positioned in each lobe that slidably contains a detent ball therein. A collar is affixed annularly around the body and defines a channel extending around the body. A sleeve is slidably mounted around the body. The sleeve includes a tapered end that is slidably disposed within the channel and has circular apertures that are in communication with the slots of the bore for reception of the detent balls. The sleeve is spring biased towards the collar, which forces the detent balls against an angular wall within the channel.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: August 21, 2018
    Inventor: Kaarle Homola
  • Patent number: 9964156
    Abstract: A mechanical end-effector changer includes a first connection unit and a second connection unit. The first connection unit has mounted therein multiple movable members and mating elastic members. Subject to the linking relationship between each movable member and the respective elastic member, the first connection unit and the second connection unit can be automatically connected together or detached from each other, facilitating end-effector change.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: May 8, 2018
    Assignee: Hiwin Technologies Corp.
    Inventors: Chen-Ming Wong, Ming-Shiou Liu, Yan-Shun Huang
  • Patent number: 9962235
    Abstract: A chuck assembly for a dental handpiece includes a hollow cylindrical tube portion having a first internal bore, and a chuck portion having a second bore. The chuck portion is supported within the first bore co-rotational with the tube portion about a common axis. The chuck portion has an annular body portion defining the second bore for supporting a cylindrical tool therein. A drive element comprising a drive pin inserted in a first end of the tube portion traverses the first internal bore at a first end of the tube portion. The drive pin cooperates with a distal end of a rotary tool insertable into the second bore to transfer torque to the tool. The tool has an elongated body portion having a driven portion and a working portion. The driven portion includes a shank portion with channels for receiving the drive pin.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: May 8, 2018
    Assignee: Dentsply Sirona Inc.
    Inventor: Eugene J. Novak
  • Patent number: 9821765
    Abstract: A steering column lock comprises a bearing-mounted, free-rotating keyhole cover that covers an underlying locking device. When installed on the steering column of a vehicle, the steering column lock prevents a would-be car thief from grabbing the lock with pliers or another tool and using the lock to turn the steering column and thus drive the vehicle, because rotation of the free-rotating outer cover does not cause rotation of the other portions of the lock.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: November 21, 2017
    Assignee: NRG Innovations
    Inventors: Chris Miller, Jason Chou
  • Patent number: 9770815
    Abstract: A socket assembly for turning a fastener with a wrench has ball mechanisms that normally engage with sides of the fastener and that can be deactivated out of engagement with the fastener by turning a collar of the socket assembly. The socket includes a socket body having a fastener receiving opening sized and shaped to engage the fastener so as to drive the fastener rotationally. At least one ball opening is provided in the fastener receiving opening adjacent the fastener when the fastener is received in the opening. A ball is provided capable of partially protruding from the ball opening with the socket in an engaged state. A ball taper insert cams against the ball to push the ball into the ball opening. A spring biases the ball taper insert so as to urge the ball into the ball opening to engage the fastener.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: September 26, 2017
    Assignee: Actuant Corporation
    Inventor: Anthony Scrivens
  • Patent number: 9764391
    Abstract: The invention relates to a power drill, having a tool-clamping device that is fastened to a spindle shaft, having a torque clutch that includes an axially movable clutch plate on which an axial force is exerted by a plurality of compression springs that cooperate at least indirectly with an adjusting nut situated on a housing component. The compression springs are accommodated in first recesses embodied in the longitudinal direction of the housing component. A device for axially moving an axial bearing situated on the spindle shaft, is provided at the end of the spindle shaft oriented toward the tool-clamping device. According to the invention, on its side oriented toward the clutch plate, the device for axially moving the axial bearing has at least one actuating section that is situated in a second recess of the housing component and on the side oriented toward the clutch plate, cooperates with an adjusting element for the device.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: September 19, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Heiko Roehm, Tobias Herr
  • Patent number: 9676038
    Abstract: A chuck for a chiseling power tool has a holding sleeve that is arranged concentrically with respect to a working axis and that serves to receive one shank end of a tool having a locking groove. A locking element protrudes partially into the holding sleeve so as to engage with the locking groove. A sliding block guides the locking element, whereby the sliding block has a section that is wound helically around the working axis.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: June 13, 2017
    Assignee: Hilti Aktiengesellschaft
    Inventor: Udo Hauptmann
  • Patent number: 9670656
    Abstract: Quick release mechanisms for auger type cleanout tools are described. The mechanisms enable engagement and disengagement of a handle to an auger without the use of separate retainers or fasteners. Also described are auger type tools and related methods of use utilizing the quick release mechanisms.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: June 6, 2017
    Assignee: Ridge Tool Company
    Inventors: Michael J. Rutkowski, Jon R. Dunkin
  • Patent number: 9636815
    Abstract: A tool receptacle is disclosed. The tool receptacle has a receiving sleeve which has a prismatic or cylindrical cavity for receiving a tool and an elongated hole for receiving a locking body. The elongated hole has a closed edge formed of two opposing longitudinal sides at a constant distance and two end sides completing the elongated hole. An extension along the working axis of at least one of the end sides is less than half of the constant distance of the opposing longitudinal sides. A groove running parallel to the working axis is provided on an inner surface of the receptacle sleeve. The groove is disposed in an extending manner at the elongated hole on the inner surface along the working axis.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: May 2, 2017
    Assignee: Hilti Aktiengesellschaft
    Inventors: Matthias Doberenz, Andres Wellmann Jelic
  • Patent number: 9579784
    Abstract: A connecting device may have a tooth-shaped jacket, a locking body internally of the tooth-shaped jacket, a plurality of balls, a spring, and a spring base. The locking body has a rear end with an annular groove and has a neck with a plurality of spherical recesses containing the balls. Radial positioning between the locking body and the tooth-shaped jacket is realized through the balls. The spring is connected between the tooth-shaped jacket and the spring base and axial positioning between the spring base and the locking body is realized through a snap ring in the annular groove.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: February 28, 2017
    Assignee: Metabowerke GmbH
    Inventors: Zhengguo Lu, Wei Wang, Rui Wu, Lidong Xu, Yiqian Zhang
  • Patent number: 9579731
    Abstract: A drill chuck assembly. The drill chuck assembly includes a rapid change mechanism configured to retain a drill bit shank inserted therein. The drill chuck assembly includes a body having a bore with a trilobe cross-section that is configured to receive a triangular and hexagonally shaped drill bit shank, interchangeably. The bore includes a slot positioned in each lobe that slidably contains a detent ball therein. A collar is affixed annularly around the body and defines a channel extending around the body. A sleeve is slidably mounted around the body. The sleeve includes a tapered end that is slidably disposed within the channel and has circular apertures that are in communication with the slots of the bore for reception of the detent balls. The sleeve is spring biased towards the collar, which forces the detent balls against an angular wall within the channel.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: February 28, 2017
    Inventor: Kaarle Homola
  • Patent number: 9573263
    Abstract: A hand-held hydraulic assembly includes a work tool having a hydraulic cylinder or main body, a ram piston disposed in the hydraulic main body and a spring or other biasing member mounted on the ram piston. An interchangeable work head is selectively engaged to the ram piston of the work tool. The ram piston is axially displaceable in the main body for actuating the work head. A quick release coupling mounted to the work tool releasably connects the interchangeable work head to the work tool.
    Type: Grant
    Filed: May 26, 2014
    Date of Patent: February 21, 2017
    Assignee: Ridge Tool Company
    Inventors: Richard R. Bowles, Robert M. Baracskai, Beat Schweizer, Rudolf Kreuzer, Marc L├╝tolf
  • Patent number: 9573335
    Abstract: Provided in a quick coupling system for fastening an interchangeable head to a pressing tool is a securing arrangement. The pressing tool has a press ram, which is movable in an axial direction, for actuating a pressing device in the interchangeable head. The quick coupling system has no thread and has either a bayonet closure or a securing arrangement having radially displaceable securing elements.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: February 21, 2017
    Assignee: VON ARX AG
    Inventors: Beat Schweizer, Martin Moritz
  • Patent number: 9566696
    Abstract: A handheld machine tool having an output shaft on which a tool holding fixture is developed, which has a multi-faced inner receptacle and a multi-faced outer receptacle, the multi-faced inner receptacle to connect to a tool insert, which can be locked using a locking device assigned to the tool holding fixture; the locking device having a locking sleeve which is displaceable for unlocking the tool insert against a spring force applied by an associated spring element in an axial direction facing away from the handheld machine tool, from a locking to an unlocking position, the locking sleeve has an operating element and a holding element connected to each other via a threaded connection, the holding element driven by the associated spring element in the direction of the locking position of the locking sleeve and the operating element enables displacement of the locking sleeve from the locking to the unlocking position.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: February 14, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Chuan Cheong Yew, HuoyHuoy Lim, Sim Teik Yeoh, Falk Herrmann
  • Patent number: 9447803
    Abstract: In one embodiment, a quick connect interface for a surgical instrument includes a body having an inner cavity that includes a flat. Two or more ball bearings are each disposed in a respective hole in the body. A sleeve is slideable along the body. The sleeve includes a camming ramp that urges the two one or more ball bearings to partially extend through the holes into the inner cavity when the sleeve is in a locked position. The two or more ball bearings are positioned to, when the shaft of the replaceable tool is disposed in the inner cavity, urge the shaft to a side of the inner cavity that includes the flat. The ball bearings may be positioned radially about a central axis of the body substantially 90 degrees apart. The camming ramp may include at least one plateau that prevents unintentional release of the shaft.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: September 20, 2016
    Assignee: Holmed, LLC
    Inventors: Rick Fu, Scott Foret
  • Patent number: 9370268
    Abstract: A hook device (2) for hanging objects such as picture frames comprises a housing (10) which has an internal space for allowing a carrier for the hook device (2) to extend through the housing (10), and which is normally provided with a projection designed for functioning as a hanging hook. The hook device (2) further comprises a clamping mechanism for fixing the housing (10) on a carrier, wherein the clamping mechanism comprises a first hollow cylinder (20) having a tapered inner surface (21), which is retained in the housing (10) in an axial direction by form closure. During the assembling process of the hook device (2), the first hollow cylinder (20) is inserted into the housing (10) by moving the cylinder (20) through an opening (17) in a radial direction, different from other elements (30, 40, 50) of the hook device (2), which are moved in an axial direction.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: June 21, 2016
    Assignee: JAN VAN BOXTEL ARTITEC B.V.
    Inventor: Wilhelmus Maria Van Groesen
  • Patent number: 9271705
    Abstract: A highly secure instrument adapter includes a handle with an internal locking and release mechanism which does not use a pushing release and which requires little physical effort to lock and release, yet provides a stable and secure connection between an instrument and the handle. The locking mechanism is comprised an ergometric handle having an open handle cavity, a receiver having an internal threaded tubular body and a plurality of locking apertures, and a rotating collar having a limited range of rotation, a plurality of fingers that project outward from the flattened surface on a spacer structure, and a plurality of circular apertures placed alternately between said fingers.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: March 1, 2016
    Inventor: Tyrone Vaughn
  • Patent number: 9156097
    Abstract: A reciprocating saw that includes a spindle including a blade slot configured to receive a saw blade. The saw further includes a blade clamp operable to removably couple the saw blade to the spindle, and the blade clamp includes a first actuator pivotable about the spindle between a locked position and an unlocked position, and a first locking member movable relative to the blade slot between an engaged position and a disengaged position in response to movement of the first actuator between the locked position and the unlocked position. The blade clamp further includes a second actuator pivotable about the spindle between a locked position and an unlocked position, and a second locking member movable relative to the blade slot between an engaged position and a disengaged position in response to movement of the second actuator between the locked position and the unlocked position.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 13, 2015
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Roger D. Neitzell, Courtney D. McCool
  • Patent number: 9149875
    Abstract: Device for clamping a workpiece holder on a collect chuck that can be fixed to a machine tool, having clamping elements distributed around the circumference of the collet chuck. The clamping elements can be adjusted radially to the axis of the collect chuck from a release to a clamping position and can be pressed against a circumferential surface of the workpiece holder positioned relative to the collet chuck in the clamping position. The clamping elements are designed as rollers having axes aligned nearly tangentially to the collet chuck circumference. A determinable surface pressure thus results in the clamping position as the rollers mutually contact the workpiece holder, a clamping mandrel of the collet chuck, and the collect chuck part. The surface pressure is thereby reduced and the collet chuck can also be used in the range of greater tensile forces.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: October 6, 2015
    Inventor: Dieter W. Kramer
  • Patent number: 9144847
    Abstract: A cutter assembly has an adapter, an outer collar, a recoil spring, a head, a pushing assembly and a central drill. The adapter has an L-shaped guiding slot and multiple balls. The outer collar is slidably and rotatably mounted around the adapter and has an annular protrusion and a positioning rod. The annular protrusion selectively abuts against the balls. The positioning rod is mounted on the outer collar and extends slidably into the guiding slot. The head is mounted detachably on the adapter and has a saw and an inserting rod. The inserting rod is inserted into the adapter and has an annular engaging groove. The annular engaging groove is formed around the inserting rod at a position corresponding to the balls to selectively hold the balls in the engaging groove.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: September 29, 2015
    Assignee: MIYANACH IND. CO., LTD.
    Inventor: Yung-Teng Tseng
  • Patent number: 9108255
    Abstract: A cutting tool assembly includes a mandrel member and a cutting tool. The mandrel member has a shaft rod and a slide sleeve fitted around the shaft rod. At least one alignment pin is mounted in the shaft rod and at least one engagement pin is disposed in the slide sleeve. At least one locking member is disposed between the shaft rod and the slide sleeve. The cutting tool has a shank body and a tool bit. At least one alignment sink is disposed on the shank body. When assembled, the shank body is plugged into the shaft rod to align the alignment pin with the alignment sink so as to release the slide sleeve from the engagement of the engagement pin, permitting the slide sleeve to move to a locking position where the locking member is latched with the cutting tool.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: August 18, 2015
    Assignee: GISON MACHINERY CO., LTD.
    Inventor: Kuang-Tai Li
  • Patent number: 9101987
    Abstract: A tool connector generally includes a tool receiving portion configured for reciprocating between first and second work tool seating positions, wherein the tool receiving portion is normally biased to the first work tool seating position, and actuatable to the second work tool seating position. The tool connector further includes a magnetic mechanism in the tool receiving portion for providing magnetic force to engage a work tool in either of the first and second work tool seating positions, and a locking mechanism for lockingly engaging a work tool in the second work tool seating position.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: August 11, 2015
    Assignee: Jore Corporation
    Inventors: W. Robert Cornwell, Nathan C. Cantlon
  • Patent number: 9101369
    Abstract: Surgical instrument with a handpiece having a drive and with a surgical tool, which has a tube and a working part with a shaft and with a tool head, the tube of the surgical tool can be detachably connected to the handpiece by a first coupling part and the shaft of the working part can be detachably connected to a drive shaft in the form of a pin of the drive by a second coupling part simultaneously.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: August 11, 2015
    Assignee: JOIMAX GMBH
    Inventor: Wolfgang Ries
  • Patent number: 9067266
    Abstract: A bit retention device includes a shaft having a sidewall defining a hexagonal cavity extending from a first end thereof and a ball groove extending through the sidewall and communicating with the hexagonal cavity. A ball is disposed in the ball groove and a ball spring engages the ball and biases the ball toward the first end. An actuator sleeve surrounding the shaft includes an internal ramp engaging the ball. A spring biased plunger assembly is disposed in the bore for biasing a bit received in the bore in a direction toward the insertion end.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: June 30, 2015
    Assignee: BLACK & DECKER INC.
    Inventors: Daniel Puzio, Robert G. Kusmierski
  • Patent number: 9027219
    Abstract: A securing mechanism is provided for a tool that allows for the attachment and release of the shafts of a variety of implements from the tool. The mechanism has a construction that provides an easily releasable, but secure engagement of the implement shaft within the mechanism while also having an alignment feature which engages the implement at multiple locations when engaged with the mechanism to maintain the alignment and concentricity of the implement shaft with regard to the mechanism and the tool when in use.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: May 12, 2015
    Assignee: Gauthier Biomedical, Inc.
    Inventors: Michael T. Gauthier, Robert F. Miller
  • Publication number: 20150102567
    Abstract: A tool joint is revealed. The tool joint includes a first main body, a second main body, locking members and a sleeve set. The first main body consists of a mounting part, a stopping part and a rear part. The second main body is disposed in the mounting part and having a polygonal assembly slot penetrating the second main body. Insertion holes are disposed close to an opening end of the assembly slot. The second main body is a polygonal column whose shape matches that of the polygonal assembly slot. The locking member is against the stopping part. The sleeve set is mounted in the assembly slot. The tool joint features on that the second main body is unable to rotate radially in the mounting part by the polygonal column design of the second main body locked with walls of a polygonal slot of the mounting part.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 16, 2015
    Inventor: FU-YI CHAN
  • Patent number: 8985593
    Abstract: The present invention is a self-locking internal adapter for D-shaped orthopedic tools. A locking ball mechanism prevents movement of the adapter components relative to each other, while a plurality of securing ball mechanisms releasably secure a D-shaped orthopedic tool in the adapter. A chamfered surface of the adapter engages a chamfer of the tool to centrally stabilize the tool in the adapter. The internal adapter may be used with driver handles, ratcheting handles and torque-limiting handles.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: March 24, 2015
    Assignee: Bradshaw Medical, Inc.
    Inventor: Hua Gao
  • Patent number: 8943931
    Abstract: A fastener holder includes a driving tool stem having a number of orifices, a driving tool shank engaged in the stem for engaging with a tool element and having a number of depressions formed in the shank, a number of bearing members engaged in the orifices of the stem for engaging with the depressions of the shank and for selectively anchoring the shank to the stem, and a barrel includes a relatively smaller segment for selectively engaging with the bearing members and for forcing the bearing members to engage into the depressions of the shank and to anchor and lock the driving shank to the stem and for allowing the driving shank and the tool element to be selectively rotated and driven by the stem.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: February 3, 2015
    Inventor: Wen Hung Chiang
  • Patent number: 8920295
    Abstract: A cutter-changing device includes a cutter-magazine carrying cutters, a rotary telescopic cylinder, and a clamping sub-assembly. The clamping sub-assembly includes a cutter-changing arm, and a pair of clamping assemblies. The rotary telescopic cylinder drives the cutter-changing arm to rotate, extend and retract. Each clamping assembly includes a mounting member, an elastic member, a piston, and at least one resisting member. The mounting member is mounted on the cutter-changing arm, and defines at least one mounting hole through the sidewall thereof. The elastic member and the piston are sleeved with the mounting member, and the two opposite ends of the elastic member press against the piston and the mounting member. The resisting member is mounted between the elastic member and the mounting member, and capable of being resisted by the piston to be partially exposed from the mounting hole.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: December 30, 2014
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Xian-Cai Zeng, Dong-Cheng Liu, Chin-Tsan Huang
  • Patent number: 8900260
    Abstract: A surgical milling cutter includes a milling cutter bracket, a locking device and a bottom electric motor connected successively. The milling cutter bracket includes a fixing seat with a through hole. A finger guide apparatus with an L-type first bracket at the top end thereof is provided on the upper part of the fixing seat. The end of the L-type first bracket's short side is provided with a downward projection. The lowest point of the projection is lower than that of the milling cutter's cylindrical head when the milling cutter is working normally. The surgical milling cutter utilizes the projection to prevent the possibility of an object contacting with the cylindrical head, thus avoiding an object being cut unevenly. Meanwhile, the L-type bracket can be driven by the finger guide apparatus to rotate so as to change the running direction of the milling cutter, thus facilitating surgical procedures.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: December 2, 2014
    Assignee: Chongqing Runze Pharmaceutical Co., Ltd
    Inventors: Lei Ye, Jian Zhou, Hua Feng, Fei Li, Hengyang Zhu, Congxiao Li
  • Patent number: 8882113
    Abstract: A holder for a bit is disclosed. The bit may include a first locking element. The holder may include a housing; a base assembly including a first hole; a second locking element partially disposed within the first hole and configured to move between a locking position in which the second locking element engages the first locking element to prevent removal of the bit, and an unlocking position in which the second locking element is spaced from the first locking element allowing the bit to be removed; and a follower assembly contained within the housing and configured to move relative to the housing and base assembly between a first position in which the follower assembly supports the second locking element in the locking position, and a second position in which the follower assembly allows the second locking element to move from the locking position to the unlocking position.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: November 11, 2014
    Assignee: WestPort Medical, Inc.
    Inventors: Douglas Roy Porter, Jason Dean Braunberger
  • Patent number: 8876120
    Abstract: A connecting rod assembly is capable of pushing the work head outward to allow more of the part of the work head to be exposed out of the connecting rod assembly, making it easier for the user to pull out the work head, thus solving the problem that it is difficult to pull the work head out of the conventional connecting rod structure since the conventional connecting rod structure doesn't have any function or devices to move the work head outwards.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 4, 2014
    Inventor: Bo-Shen Chen
  • Patent number: 8844940
    Abstract: A tool-bit holder (10) for varying tool-bit shank profiles comprising a hub (12) having a longitudinal bore (28) adapted for receiving a tool-bit shank (66, 70, 80). The hub (12) has a plurality of radial slots (38) communicating with the first section (30) of the longitudinal bore (28). The tool-bit holder (10) has a collar (14) fixedly attached to the hub (12) adjacent the open (29) and disposed annularly about the hub (12). A sleeve (16) is axially slidably mounted and disposed annularly about the hub (12). The sleeve (16) has a plurality of radial bores (48), each being in communication with a respective radial slot (38) of the hub (12) with a detent ball (18) disposed within each. A spring (20) is provided for biasing the sleeve (16) towards the open end (29) wherein the detent ball (18) engages an inner ramp face (46) of the collar (14).
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: September 30, 2014
    Assignee: Insty-Bit, LLC
    Inventor: James L. Wienhold
  • Patent number: 8844939
    Abstract: An adapter for a power tool is disclosed which comprises a drive shaft that can be connected to an output shaft of the power tool in a rotationally fixed manner. There is a receiving connector on the power tool. On the adapter there is provided an assigned sleeve that can be pushed onto the receiving connector, and which comprises a clamping ring, which acts together with locking members in order to effect locking of the sleeve on the receiving connector when in a closed position, the clamping ring being held so as to be movable in the axial direction and being preloaded in the direction of the closed position. The locking members act together with the clamping ring in such a way that locking is effected automatically in the closed position when the adapter is pushed onto the power tool as far as the closed position, and a release of the adapter from the closed position can be effected through an axial movement of the clamping ring against its preload.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: September 30, 2014
    Assignee: C. & E. Fein GmbH
    Inventors: Norbert Woecht, Johannes Hoeppner, Tobias Hokenmaier
  • Patent number: 8844942
    Abstract: A mechanical connector designed to connect an orthopedic tool to a handle or motor. The connector includes a locking ball and spring-load sleeve mechanism that compresses a ball into an annular groove of the tool drive shaft, locking the shaft in the connector. The tool drive shaft is released from the connector by applying a force to the housing in a proximal direction. A portion of the housing removes the locking ball from the groove of the tool drive shaft, unlocking the shaft from the connector as the housing travels in a proximal direction.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: September 30, 2014
    Assignee: Greatbatch Ltd.
    Inventors: Steve Landowski, Kevin K. Marchant
  • Patent number: 8826781
    Abstract: A screwdriver includes a grip defining an accommodation chamber, an inner tube with interference holes mounted in the accommodation chamber, a rod member movable in and out of the inner tube and having interference grooves corresponding to the interference holes and a neck and carrying a latching member, an operating device set, which includes an operating member rotatably mounted at the front side of the grip, interference members and an actuation member having a pressure wall for holding down the interference members, a first elastic member, a ring cap having an axial hole and a stop wall around the axial hole for stopping the latching member, and a second elastic member. Thus, the screwdriver is operable by rotating the operating member and effectively prevents the rod member from being ejected out of the grip.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: September 9, 2014
    Assignee: Good Year Hardware Co., Ltd.
    Inventor: Tsai-Ching Chen
  • Patent number: 8800999
    Abstract: A bit retention device includes a shaft having a sidewall defining a hexagonal cavity extending from a first end thereof and a ball groove extending through the sidewall and communicating with the hexagonal cavity. A ball is disposed in the ball groove and a ball spring engages the ball and biases the ball toward the first end. An actuator sleeve surrounding the shaft includes an internal ramp engaging the ball. A spring biased plunger assembly is disposed in the bore for biasing a bit received in the bore in a direction toward the insertion end.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: August 12, 2014
    Assignee: Black & Decker Inc.
    Inventors: Daniel Puzio, Robert G. Kusmierski
  • Patent number: 8746702
    Abstract: A retainer for holding a tool bit on an impact hammer including a shielding ring at the retainer distal end. The retainer includes an axially slidable sleeve whereby tool bits may be selectively exchanged on the retainer and whereby tool bits are secured in the retainer for use thereof. The sleeve is axially slidable toward the retainer distal end for placing the retainer in the locked or in-use position, and is axially slidable away from the distal end against the force of a spring for placing the retainer in the tool bit release position. The shielding ring extends radially beyond the axially slidable sleeve for preventing inadvertent axial movement of the sleeve to the release position by debris and/or objects which come in contact with the retainer distal end, and thereby aiding in the prevention of inadvertent release of the tool bit during use.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: June 10, 2014
    Assignee: Ajax Tool Works, Inc.
    Inventor: Robert J. Benedict
  • Patent number: 8708346
    Abstract: A collet for connecting a rotary tool to a rotary tool driver, the rotary tool including a shaft having a shaft end and a shaft diameter includes a body including a first end configured to connect to the rotary tool driver and a second end configured to receive the rotary tool. A magnet is disposed within the body and is positioned to magnetically engage and contact the shaft end to inhibit movement of the rotary tool along a shaft rotational axis. A support member is disposed within the body and is configured to support the shaft for rotation about the shaft rotational axis.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: April 29, 2014
    Assignee: Techtronic Power Tools Technology Limited
    Inventors: Ryan Harrison, Robert E. McCracken, Daniel J. Bowen
  • Patent number: 8690164
    Abstract: A hand tool with bit release device includes a connecting shaft, a block, a positioning bead and a cover. When the user wants to insert a tool bit into the connecting shaft, the user pushes the tool bit into the connecting shaft directly and the positioning bead engages with the tool bit firmly. When the user wants to release the tool bit from the connecting shaft, the user moves the cover axially relative to the connecting shaft and the positioning bead disengages with the tool bit so that the tool bit is released from the connecting shaft.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: April 8, 2014
    Inventor: Ji-Fen Meng
  • Patent number: 8636287
    Abstract: A tool-bit holder has a hub, wherein the hub has a longitudinally extending axial bore for receiving a tool-bit therein, a detent ball radially projecting into the bore to selectively engage the tool-bit, and a circumferential ramp that is longitudinally moveable over the detent ball to cause radial movement thereof. A longitudinally moveable member extends through a slot in the hub and radially into the bore. The circumferential ramp is moveable as a function of longitudinal movement of the moveable member relative to the hub.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: January 28, 2014
    Assignee: Insty Bit Acquisition, LLC
    Inventor: James L. Wienhold
  • Patent number: 8622400
    Abstract: A tool includes a chuck connected to a handle. The chuck includes a mandrel including a non-circular cavity defined therein, a slit in communication with the non-circular cavity, a first bore in communication with the non-circular cavity, and a second bore in communication with the slit. A bit with a non-circular profile can be inserted in the non-circular cavity. A flat bit can be inserted in the slit. A ball is located in the first bore. A pin is located in the second bore. A movable sleeve is located around and movable along the mandrel and formed with a thread. A rotary sleeve is rotationally located around the mandrel and formed with a thread engaged with the thread of the movable sleeve. By rotating the rotary sleeve, the movable sleeve pushes the ball into the non-circular cavity and the pin into the slit.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: January 7, 2014
    Assignee: Yih Cheng Factory Co., Ltd
    Inventor: Jack Lin