Patents Examined by Eric A. Gates
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Patent number: 11571754Abstract: The invention relates to a single-lip drill with an inner and an outer rake face. Very good hole straightness deviation values and endurance are obtained with the ground face according to the invention.Type: GrantFiled: May 29, 2018Date of Patent: February 7, 2023Assignee: botek Praezisionsbohrtechnik GmbHInventor: Juergen Wenzelburger
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Patent number: 11571759Abstract: A cutting tool, such as a reamer, includes a rear machine connection member, a center tube, a front cutting ring, and a rear cutting ring. The front cutting ring includes a sleeve member and one or more cutting head assemblies. Each cutting head assembly includes at least one support arm extending radially outwardly from a rotational axis, RA, of the cutting tool, and a cutting head supported by the at least one support arm. The at least one support arm of the cutting head assembly defines a fluid dynamic structure for directing fluid flow in a desired direction to facilitate chip evacuation during a cutting operation. The fluid dynamic structure can be an airfoil, a turbine blade, or similar structure that produces a directed fluid flow.Type: GrantFiled: December 9, 2020Date of Patent: February 7, 2023Assignee: KENNAMETAL INC.Inventors: Logan M. Semnisky, Alan J. Bookheimer, Ingo Grillenberger, Dominik Schmid
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Patent number: 11571753Abstract: A device and system for a rotary boring tool that enables a user to align the tool with respect to a target work surface is disclosed. The alignment system includes a rotating member that is mounted on the rotating portion of a rotary boring tool, and a separate portable stationary member that is designed to reside on the work surface. The rotating member includes a focused light source, such as a laser, that projects a light beam parallel to the direction of the rotary boring tool bit onto the stationary member which reflect the beam and produces a visible pattern on the surface of the stationary member that indicates alignment or misalignment of the rotary boring tool with respect to the work surface.Type: GrantFiled: May 21, 2019Date of Patent: February 7, 2023Inventor: John Cerwin
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Patent number: 11571761Abstract: A thread restoration tool (10), including: a first (30A) and second (30B) jaw, being horizontally rotatable (72B) one in relation to the other, for gripping the thread (22) in between; at least one knife (20A, 20B), extending from at least one of the first (30A) and second (30B) jaws, for being inserted into the thread (22) by the gripping; a vertical to horizontal convertor (208), for converting vertical motion of a vertically positioned rod (36) to the horizontal rotating of one of the jaws (30A, 30B) in relation to the other, thereby the gripping of the thread (22) is operable via the top (44A) of the rod (36) being disposed above the thread (22), thereby reducing occupied space (220) around the thread (22), required for the gripping.Type: GrantFiled: March 11, 2019Date of Patent: February 7, 2023Inventor: Moshe Aharon Abraham
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Patent number: 11565330Abstract: Machine chuck jaws, and a related method of manufacture, are provided. The machine chuck jaws are formed from an additive manufacturing process and include one or more gripping pads per chuck jaw. An axial stop is also formed from an additive manufacturing process and provides a flat surface for workpiece placement. The gripping pads equally distribute the clamping pressure, and the additive manufacturing process provides unique shaping capabilities and a honeycomb internal cross-section, thereby achieving a lightweight design. The reduction in weight allows for a decrease in pneumatic pressure used to actuate the jaws, resulting in a corresponding reduction in the clamping pressure which helps improve the form of the workpiece being machined.Type: GrantFiled: September 28, 2020Date of Patent: January 31, 2023Assignee: Alpha Precision Group, Inc.Inventors: Phillip McDonald, Seth Weible, Joseph Taylor, Dean Bowley, Benjamin Jovenitti
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Patent number: 11559840Abstract: A hole saw includes a cylindrical body having a sidewall with a first end and a second end opposite the first end. The cylindrical body includes a gullet formed in the sidewall between a leading surface, a trailing surface, and a bottom surface of the sidewall. The gullet defines a central longitudinal axis extending between the first and second ends of the sidewall that is obliquely oriented relative to a rotational axis of the hole saw such that the gullet is angled from the first end to the bottom surface in a direction toward a cutting direction of the hole saw. The gullet has a dimension measured parallel to the rotational axis between the first end of the sidewall and the bottom surface of the gullet that is greater than 1.5 inches. The hole saw includes a cutting tooth coupled to the first end of the sidewall adjacent the gullet.Type: GrantFiled: June 24, 2020Date of Patent: January 24, 2023Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: Max R. Sawa, Geoffrey R. Piller, Kenneth D. Peterson, Travis J. DuMez, James Ernest Pangerc
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Patent number: 11554425Abstract: A hole cutter has a substantially cylindrical blade body defining a blade body circumference, a cutting edge formed on one end of the blade body, and an axially-elongated slot formed through the substantially cylindrical blade body. The axially-elongated slot is configured to receive chips flowing from the cutting edge within the interior of the blade body and (i) into the slot and/or (ii) through the slot, to prevent the collection of such chips within the interior of the blade body and/or at an interface between the blade body and the work piece. The axially-elongated slot defines a first end adjacent to the cutting edge, a second end axially spaced further from the cutting edge, and a slot area. The hole cutter further defines a total slot area to blade body circumference ratio within the range of about 0.1 to about 0.3 depending on the size of the hole cutter.Type: GrantFiled: September 25, 2020Date of Patent: January 17, 2023Assignee: Black & Decker Inc.Inventors: Joseph Thomas Novak, Matthew Christopher Green
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Patent number: 11548077Abstract: A reducing sleeve for fastening a machining tool in a tool holder is described. Said reducing sleeve comprises a reducing sleeve body, which comprises a first tool-side end and a second tool holder-side end. In addition, at least one coolant supply channel is provided in the reducing sleeve body. Furthermore, a multifunctional interface is arranged at the second end and is designed for coupling to a sealing unit and a safety unit. Additionally presented is a modular system for providing a reducing sleeve assembly, which comprises such a reducing sleeve, a sealing unit, and a safety unit. In addition, a machining assembly with a tool holder, a reducing sleeve, and a machining tool is presented.Type: GrantFiled: April 8, 2021Date of Patent: January 10, 2023Assignee: KENNAMETAL INC.Inventor: Josef K. Herud
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Patent number: 11548076Abstract: A chuck for a machine tool includes a body rotatable about a rotation axis and defining a plurality of slots extending radially in the body, a plurality of jaws received in corresponding ones of the plurality of slots, the jaws being radially movable relative to the body between an inward position and an outward position, and for at least one of the plurality of jaws, a sealing layer disposed in the slot receiving the at least one of the plurality of jaws and sealing an interface between opposed lateral sides of the at least one jaw and a surface of the body defining the slot receiving the at least one of the plurality of jaws. A method of sealing an interface between a surface defining a slot of a chuck is also described.Type: GrantFiled: August 20, 2019Date of Patent: January 10, 2023Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Guy Lanoue, Philippe Raymond
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Patent number: 11548078Abstract: A drilling tool includes a tool body having a center axis defining a longitudinal direction of the drilling tool. The tool body has an axially forward end and an axially rearward end, the distance in the longitudinal direction between the forward end and the rearward end defining a length of the drilling tool. At least two indexable cutting inserts are arranged at the axially forward end, a first indexable cutting insert being arranged at a radially inner position and a second indexable cutting insert being arranged at a radially outer position. The tool body includes a first flute portion extending axially rearward from the first indexable cutting insert and a second flute portion extending axially rearward from the second indexable cutting insert. The first flute portion transitions into the second flute portion at an axially forward transition area of the tool body, thereby forming only one flute of the tool.Type: GrantFiled: March 20, 2019Date of Patent: January 10, 2023Assignee: Walter AGInventor: Florian Baur
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Patent number: 11541466Abstract: A support assembly for a core drill which utilizes an improved high strength spoked reinforcer. The reinforcer may be removably mounted a core drill tube by fasteners. A drive connection is removably mounted and centrally located on an outer disc of a pair of discs. The drive connection is adapted to connect with a drive shaft to cause rotation of the tube. The assembly can also include a split in the disc when the high strength spoked reinforcer is not welded thereto, thereby providing a means of water control. The high strength spoked reinforcer can be a separate piece that is bolted to the disc or can be integrally formed as one piece therewith.Type: GrantFiled: September 10, 2019Date of Patent: January 3, 2023Assignee: WESTERN SAW, INC.Inventor: Anthony Baratta
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Patent number: 11534841Abstract: A hole-saw, including a sidewall and an endcap, is provided. The endcap includes projections that fit within notches of the sidewall to form a brazed or welded joint that couples the endcap to the cylindrical sidewall. The projections extend through the notches and are brazed or welded to the base of the sidewall. The endcap couples to the sidewall to form a cylindrical hole saw body. The endcap rotates and supports the hole-saw during operation.Type: GrantFiled: December 3, 2020Date of Patent: December 27, 2022Assignee: Milwaukee Electric Tool CorporationInventors: Hannah T. Maksimovic, Andrew Schulz, John P. Mohr, Jesse R. North, Timothy J. Signer, Bradley Charles Engel
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Patent number: 11529690Abstract: Jigs, fixtures, accessories, and the like for locating, aligning, guiding, engaging, and/or holding a workpiece on a woodworking machinery during a woodworking operation are described, as well as methods of making, modifying, and using jigs, fixtures, and accessories.Type: GrantFiled: May 14, 2021Date of Patent: December 20, 2022Inventor: Mark A. Duginske
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Patent number: 11524344Abstract: A cutting insert rotatable about an axis, has opposing front and rear surfaces interconnected by an insert peripheral surface, the insert peripheral surface having first and second side surfaces spaced apart by first and second land surfaces. First and second land edges extend along the first and second land surfaces, respectively. A first front edge formed at the intersection of the front surface and the first side surface includes a cutting-edge portion, and a second front edge formed at the intersection of the front surface and the second side surface is devoid of a cutting-edge portion. A cutting profile formed by rotating the cutting-edge portion about the axis is located axially forward of the second front edge. The cutting insert is releasably secured to a tool shank, the cutting insert being located between two protuberances protruding from a forward end portion of the tool shank.Type: GrantFiled: April 22, 2020Date of Patent: December 13, 2022Assignee: Iscar, Ltd.Inventor: Gil Hecht
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Patent number: 11525308Abstract: A drilling device includes a drill basic body and a conveying helix which runs helically around the drill basic body. The conveying helix is subdivided into a plurality of conveying helix segments that are disposed next to one another. The conveying helix segments may be disposed loosely next to one another.Type: GrantFiled: May 28, 2019Date of Patent: December 13, 2022Assignee: Hilti AktiengesellschaftInventors: Roland Foser, Pierre Pallmer, Jens Kondratiuk
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Patent number: 11524341Abstract: A plurality of friction rods each of which is positioned in a hole around the retaining bore with a portion of each of the plurality of friction rods partially protruding into the retaining bore for directly engaging the shank of the tool for holding the shank of the tool in the retaining bore at the defined contact surfaces.Type: GrantFiled: April 8, 2022Date of Patent: December 13, 2022Assignee: Techniks, LLCInventor: Scott Worthington
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Patent number: 11524340Abstract: A tool body includes a damping apparatus for damping vibrations in a machining tool having, besides the tool body, a member with at least one cutting edge to be secured to the tool body. The damping apparatus is arranged in an internal room of the tool body and includes a damper mass body with an axial bore and a central tube extending through the bore and which is rigidly secured to the damper mass body inside the through bore. A central tube is also at both ends thereof rigidly connected to a tool body fixed part and the central tube is made of a material with a spring property allowing the damper mass body to oscillate in the internal room perpendicularly to the longitudinal extension of the central tube.Type: GrantFiled: September 11, 2018Date of Patent: December 13, 2022Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Dan Ostling, Tormod Jensen
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Patent number: 11517968Abstract: A deburring tool includes: a body; and a cutting unit provided on an end portion of the body and including a blade part, where a first channel is provided inside the body, and when a fluid supplied from outside of the deburring tool through the first channel is injected into the cutting unit and presses the cutting unit, the cutting unit moves and a degree to which the blade part protrudes outwardly increases.Type: GrantFiled: November 16, 2020Date of Patent: December 6, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sung Min Bae, Jong Youl Park, Jin Youl Kim, Seung Ho Lee, Min Hee Cho
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Patent number: 11511356Abstract: An oscillating tool includes a housing, a motor housed in the housing and a clamp assembly operatively driven by the motor in an oscillating motion. The clamp assembly can hold an accessory such as a blade or sanding attachment, and the clamp assembly includes a first clamp and a second clamp. The oscillating tool also includes a clamp lever and an actuating lever. The clamp lever is operatively coupled to the first clamp to move the first clamp such that clamp assembly is moved from a closed position to an open position. The actuating lever is operatively coupled to the clamp lever to effect movement of the clamp lever, movement of the clamp lever causing the clamp assembly to move from the closed position to the open position.Type: GrantFiled: June 25, 2020Date of Patent: November 29, 2022Assignee: Black & Decker Inc.Inventors: Oleksiy P. Sergyeyenko, Sean M. Bailey
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Patent number: 11511354Abstract: A chuck (600) for use with a powered driver having a rotatable drive shaft is provided. The chuck may include a body, a plurality of movable jaws (610), a nut (625), a sleeve (640), and an anti-vibration assembly (620). The anti-vibration assembly may be operably disposed between the sleeve and the nut and configured to absorb vibration caused by operation of the power driver and maintain a position of the sleeve relative to the nut when the sleeve is in at least a locked position.Type: GrantFiled: July 28, 2017Date of Patent: November 29, 2022Assignees: APEX BRANDS, INC., JACOBS CHUCK MANUFACTURING (SUZHOU) COMPANY, LTD.Inventors: Tingwei Zeng, Jichun Zhou, Weiwei Sun, Huangsheng Xu