Patents Examined by Eric A. Gates
  • Patent number: 10807210
    Abstract: A clamping device for clamping a tool includes a tool holder with a collet and a clamping nut in and the tool holder has a mechanism for clamping the tool holder and for detecting and displaying a torque applied to the clamping nut.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: October 20, 2020
    Assignee: Rego-Fix AG
    Inventors: Tobias Senn, Konrad Abt
  • Patent number: 10807170
    Abstract: The invention relates to a tool device which is suitable for use with a machine tool, in particular a hand guided machine tool, having a driving device moving, in particular in an oscillating manner, around a driving axis. The tool device has an attachment device which allows it to be fastened on a machine tool such that its driving axis and an axis of rotation of the tool substantially coincide. The attachment device, for absorbing the driving force, has at least two driving area regions, which are spaced apart from said tool axis of rotation and each has a plurality of surface points. The tangent planes to said surface-area points are inclined in regard to an axial plane, which encloses the tool axis of rotation. Furthermore, said tangent planes are inclined regard to a radial plane which extends perpendicularly to the tool axis of rotation. This means that the torque introduced into the tool device by the machine tool, via the driving device, is reliably absorbed.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: October 20, 2020
    Inventors: Olaf Klabunde, Juergen Blickle, Walter Thomaschewski, Fabian Bek, Stefano Delfini, Willi Fellmann, Bruno Luescher, Milan Bozic, Thomas Mathys, Daniel Grolimund
  • Patent number: 10807171
    Abstract: A novel drill jig includes an edge alignment guide, a hole-spacing assembly, a second guide, a biasing member, and an actuator. The edge alignment guide is configured to abut an edge of a workpiece to facilitate movement of the workpiece along a first straight line. The hole-spacing assembly includes a protrusion disposed to engage a preexisting hole in a workpiece positioned by the edge alignment guide. The second guide is coupled to the hole-spacing assembly and is configured to facilitate movement of the hole-spacing assembly along a second straight line perpendicular to the first straight line. The first biasing member is coupled to the hole-spacing assembly and is operative to exert a force on the hole-spacing assembly in a direction parallel to the second straight line. An actuator moves the hole-spacing assembly along the second straight line via the first biasing member.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: October 20, 2020
    Inventor: Robert James DeGowske
  • Patent number: 10799957
    Abstract: A machining apparatus capable of drilling a long workpiece from an end surface of a diameter-expanded part and drilling a short workpiece from an end surface of a stem part without inverting orientation of a collet and a sleeve in a chuck device is provided, as well as a method of using the same, and a chuck device for the machining apparatus. A deep hole drilling machine and a chuck device are included with a sleeve and a collet included inside the chuck device, and the collet and the sleeve each have both end openings opened toward the outside of the chuck device. The opening on one end side of each of the sleeve and the collet is directed to the deep hole drilling machine, and the collet is disposed on the other end side of the sleeve.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: October 13, 2020
    Assignee: NITTAN VALVE CO., LTD.
    Inventor: Takehiro Okuno
  • Patent number: 10800015
    Abstract: A concave drive shaft in combination with a power tool includes: the power tool, a drive shaft and a sleeve. The drive shaft is disposed in a power tool, and has a recess. The sleeve has a coupling post provided for inserting into the recess, so that the sleeve is assembled to the drive shaft. The position where the sleeve is connected to the drive shaft is located in the power tool, so that the portion of the sleeve located outside the power tool is shortened, which allows the power tool to be used in a narrow working environment after the sleeve is assembled to the power tool.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: October 13, 2020
    Assignee: Apach Industrial Co., Ltd.
    Inventor: Yi-Wei Zhang
  • Patent number: 10792801
    Abstract: An accessory for coupling to an attachment mechanism of an oscillating power tool includes a working end, an opposite rear end, and a fitment portion adjacent the rear end portion. The fitment portion includes a central opening having a central portion and a rearward portion open to the rear end, and configured to receive a post of a tool clamping mechanism. The fitment portion further includes a first plurality of openings in communication with and extending radially outward from the central portion, a second plurality of openings not in communication with and positioned radially outward from the central portion. The central portion, the first plurality of openings, and the second plurality of openings are configured to couple the fitment portion to a plurality of different configurations of attachment mechanisms for oscillating power tools.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: October 6, 2020
    Assignee: Black & Decker Inc.
    Inventors: Thomas R. Kaye, Jr., James R. Niblett
  • Patent number: 10792738
    Abstract: A cutting tool may include a circular columnar body extending from a first end to a second end along a rotation axis. At least a part of the columnar body may correspond to an insert including a cutting edge at the first end. The insert may include therein a flow path extending from a side of the first end toward a side of the second end. A width of the flow path along a radial direction of the circular columnar body may be smaller than a width of the flow path along a circumferential direction of the circular columnar body in a cross section orthogonal to the rotation axis.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: October 6, 2020
    Inventor: Katsura Hayashi
  • Patent number: 10792736
    Abstract: A lightweight intelligent top-tooling device integrates with an instrument. The instrument can be a sensing device. The instrument is placed inside a part of the lightweight intelligent top-tooling device during manufacturing process. The lightweight intelligent top-tooling device includes a locator and three top-jaws. The locator is engaged to a chuck of a metal cutting tool when assembled. The top-jaws attached to the locator are adapted to grip a workpiece. The lightweight intelligent top-tooling device is manufactured by a 3D printer. A 3D model of a part of the lightweight intelligent top-tooling device is first created. The 3D model is sliced into layers. The 3D printer prints out the layers of the lightweight intelligent top-tooling device. Media journals are created and the sensing device is placed during the printing process. The lightweight intelligent top-tooling device is printed with composite materials. One type of composite material is CFRP.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: October 6, 2020
    Assignee: Kitagawa-Northtech, Inc.
    Inventor: Naga Sai Chakravarthy Velamakuri
  • Patent number: 10790181
    Abstract: Grinding, lapping and polishing basically work by making scratches in the body being ground, lapped or polished. The scratches typically are linear. The scratches gives rise to a directionality component of friction: the friction coefficient is less in the direction along the scratch than in a direction orthogonal, or across, the scratch. In a wafer handling/chucking situation, one wants the wafer to settle on the chuck, which involves the outer regions of the wafer moving radially with respect to the chuck. One can reduce friction in the radial direction by giving the lapping scratches a preferred orientation, namely, radial. This can be achieved by making the final passes of the lapping tool move predominantly in radial directions.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: September 29, 2020
    Assignee: M Cubed Technologies, Inc.
    Inventor: Edward J. Gratrix
  • Patent number: 10786852
    Abstract: A support assembly for a core drill uses an improved reinforcement. The reinforcement can include an extension extending between a center of the tool and a perimeter of the tool the extension can be a non-planar structure having a channel along a portion of the structure. The reinforcement can include a slanted element that can be associated with the extension, that can be formed monolithic with the extension, or otherwise combined with an extension. Multiple slanted elements can be used to form an extension. A top plate can be included for strengthening the reinforcement.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: September 29, 2020
    Assignee: Western Saw Manufacturers, Inc.
    Inventor: Anthony Baratta
  • Patent number: 10784132
    Abstract: A method and apparatus for de-chucking a workpiece is described that uses a swing voltage sequence. One example pertains to a method that includes applying a mechanical force from an electrostatic chuck against the back side of a workpiece that is electrostatically clamped to the chuck, applying a sequence of voltage pulses with a same polarity to the electrodes, each pulse of the sequence having a lower voltage than the preceding pulse, each pulse of the sequence having a lower voltage than the preceding pulse, and determining whether the workpiece is released from the chuck after the sequence of additional voltage pulses and if the workpiece is not released then repeating applying the sequence of voltage pulses.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: September 22, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Haitao Wang, Wonseok Lee, Sergio Fukuda Shoji, Chunlei Zhang, Kartik Ramaswamy
  • Patent number: 10773317
    Abstract: A rotating cutting tool that is internally cooled by cryogenic coolant, the rotating cutting tool has a cylindrical body including: a central bore that extends along a longitudinal axis of the cylindrical body; a plurality of cold flow delivery paths formed from radial bores that fluidly communicate with and extend radially-outwardly from the central bore; longitudinal grooves that are formed along an outer surface of the cylindrical body extending along the longitudinal axis and fluidly communicating with the radial bores; a bushing having an inner diameter closely conforming to the outer surface of the cylindrical body allowing the bushing to concentrically fit over the cylindrical body and the longitudinal grooves to form longitudinal passageways extending from the radial bores to one or more exhaust ports formed in the bushing proximate a rear face of the cylindrical body; and a plurality of flutes for cutting a workpiece each having a cutting edge formed from the bushing.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: September 15, 2020
    Assignee: 5ME IP, LLC
    Inventor: George Georgiou
  • Patent number: 10766074
    Abstract: A rotational cutting tool includes a connecting end for engaging with a driving tool and a cutting end for engaging with the work piece. The connecting end and the cutting end rotate about the rotation axis upon rotation of the rotational cutting tool. An inner periphery of the cutting end defines a receiving space for receiving the work piece. The receiving space has a conic surface which extends radially and obliquely with respect to the rotation axis. The receiving space includes a first ridge forming at least one cutting edge for trimming the workpiece and at least one slot allowing trimmed pieces from the workpiece to exit from the receiving space. The first cutting edge extends radially and obliquely with respect to the rotation axis. The first cutting edge extends curvedly and has a curved contour.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: September 8, 2020
    Assignee: Hong Ann Tool Industries Co., Ltd.
    Inventor: Cheng-Wei Su
  • Patent number: 10766079
    Abstract: The invention relates to a drill hold assembly and a jig including the same. The drill hold assembly includes an engaging means which is selectively moveable between a released position to allow sliding movement of the drill bit with respect thereto and an engaged position in which the drill bit is held in a fixed position or within a predefined range of movement with respect to the engaging block to thereby maintain the drill bit in location with the drill hold assembly. The jig apparatus can be used with a powered drill to rotate the drill bit to provide a driving force to the drill bit and the jig is attached to a support surface and a workpiece is positioned between first and second jaws of the jig and the drill bit is advanced along a guide and introduced into the workpiece to form a hole therein at a predefined angle.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: September 8, 2020
    Assignee: Power Box AG
    Inventors: Daniel Pikarski, Darrell Morris, Michael Corcoran, Adam Yates, Simon Bird
  • Patent number: 10766083
    Abstract: A spiral flute tap includes a body having an axial forward end and an axial rearward end. The body has a cylindrical shank portion adjacent the axial rearward end, a threaded fluted portion adjacent the axial forward end, a non-threaded fluted portion between the cylindrical shank portion and the threaded fluted portion, and a central, longitudinal axis. The spiral flute tap further includes a plurality of helical flutes formed at a helix angle, HA, with respect to the central, longitudinal axis of the tap that continuously increases in magnitude in the threaded fluted portion. In other words, the lead of the plurality of helical flutes continuously decreases in magnitude in a rearward direction for a predetermined distance. In one example, the helix angle, HA, varies at a rate of between 0.5 degrees/mm to 4.0 degrees/mm. A method of making the spiral flute tap is also disclosed.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: September 8, 2020
    Assignee: KENNAMETAL INC.
    Inventors: Yan Yan, Stephen Michael George
  • Patent number: 10758987
    Abstract: The chuck with locking device has a ratchet mechanism comprising a toothed ring with engagement teeth fixed to one of an outer casing and a base body. A ratchet pawl is coupled to the toothed ring when a locking control sleeve is in a locking position and the locking pawl is separated from the tooth ring when the locking control sleeve is in a release position. A release elastic element is arranged under compression between the outer casing and a locking ring. The locking ring is fixed inside a locking control sleeve. A cam groove is formed in the locking ring. A pin is inserted in the cam groove and in a hole formed in the base body. The locking control sleeve moves the locking ring between the locking and unlocking positions.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: September 1, 2020
    Assignee: Stryker Corporation
    Inventor: Antoni Ortiz Batallé
  • Patent number: 10751810
    Abstract: A vertical-edge double-step sawtooth cutter for preparing high-quality holes of composite material and thereof hybrid stack structure, and has three parts which are a major cutting edge region A, a minor cutting edge region B and a shank region C. The minor cutting edge region B comprises a step vertical-edge region D and a sawtooth cutting region E. This has the step structure and the sawtooth structure which is distributed in the first step, has a recutting function at the inlet and a reverse cutting function at the outlet in the direction opposite to the main cutting motion. The cutter has the vertical edge structure distributed in the second step, and the angle of the second step is a negative value, thereby realizing chip breaking and crushing, reducing scratch to the upper-layer composite material and metal hole walls.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: August 25, 2020
    Inventors: Fuji Wang, Zhenyuan Jia, Meng Zhao, Yu Bai, De Cheng, Chong Zhang
  • Patent number: 10751819
    Abstract: Disclosed is a method for manufacturing a stator for an eccentric screw motor where at least two milling heads are used for machining the inner wall of the stator tube, wherein, at the start of the machining, one of the milling heads is brought to a predetermined position near the stator with respect to the end of the stator tube, the milling head is fed into the tube interior along its linear axis from this predetermined position, and a thread is machined until the milling head reaches at least the longitudinal center of the stator tube or exceeds a predetermined value, and the second milling head starts its machining of the inner wall surface of the stator tube at this point, wherein the milling head is moved along its linear axis and rotated about its rotary axis until the milling head reaches the centre of the stator tube.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: August 25, 2020
    Assignee: 3 S Schnecken + Spindeln + Spiraten Bearbeitungsgesellschaft m.b.H.
    Inventor: Walter Reisinger
  • Patent number: 10751807
    Abstract: The present application provides a material transferring and positioning device for a wheel machining center, which includes a base plate, a base, a first bearing, a first shaft sleeve, a hydraulic cylinder brake, a rotary cylinder, a cap and so on. The application may meet the positioning requirement of the wheel machining center, and has the advantages of simple structure, convenient manufacture, stable performance, high positioning precision and simple operation, so that it is very suitable for automatic mass production.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: August 25, 2020
    Inventors: Weidong Liu, Na Zhang, Liguang Xie, Jing Wang, Shujuan Li
  • Patent number: 10751811
    Abstract: A hole saw includes a substantially cylindrical body defining a cutting end and an axis of rotation. The hole saw also includes first and second apertures formed through the body and spaced from the cutting end such that a portion of the body extends between the cutting end and both the first and second apertures. The first and second apertures are both configured to receive a tool for removing work piece plugs from within the cylindrical body. The first aperture is axially spaced from the cutting end a first distance. The second aperture is axially spaced from the cutting end a second distance that is greater than the first distance. The first aperture and the second aperture are separated by a portion of the body.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: August 25, 2020
    Inventors: Geoffrey R. Piller, Jason M. Thom, Ryan J. Malloy, Todd A. Taylor