Drills having a centre free from cutting edges or with recessed cutting edges

Industry

  • CPC
  • B23B2251/46
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tool holder for lathe and lathe provided with the tool holder

    • Patent number 11,123,804
    • Issue date Sep 21, 2021
    • DMG MORI CO., LTD.
    • Masahiro Yamane
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Cutting tip

    • Patent number 10,183,342
    • Issue date Jan 22, 2019
    • DIAGER
    • Olivier Bonhomme
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tubular parts and embeddable electrical boxes

    • Patent number 9,979,171
    • Issue date May 22, 2018
    • Sebastian Lopez Rubio
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill bit with an exchangeable cutting portion

    • Patent number 9,821,379
    • Issue date Nov 21, 2017
    • Hilti Aktiengesellschaft
    • Matthaeus Hoop
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill bit with an exchangeable cutting portion

    • Patent number 9,687,916
    • Issue date Jun 27, 2017
    • Hilti Aktiengesellschaft
    • Matthaeus Hoop
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill and method for manufacturing cut workpieces using same

    • Patent number 9,662,718
    • Issue date May 30, 2017
    • Kyocera Corporation
    • Kenichirou Koga
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill

    • Patent number 9,238,272
    • Issue date Jan 19, 2016
    • Toyota Jidosha Kabushiki Kaisha
    • Yasushi Chiba
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Rotary drill

    • Patent number 9,132,571
    • Issue date Sep 15, 2015
    • BAUER DRILL I/S
    • Kim Bauer
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drilling tool

    • Patent number 9,085,033
    • Issue date Jul 21, 2015
    • Kennametal Inc.
    • Uwe Hobohm
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Throwaway tip for deep-hole drilling and drill head for deep-hole d...

    • Patent number 8,764,352
    • Issue date Jul 1, 2014
    • Unitac, Incorporated
    • Takuji Nomura
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Cutting tool

    • Patent number 8,317,439
    • Issue date Nov 27, 2012
    • Iscar, Ltd.
    • Gideon Drori
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Ballnose end mill

    • Patent number 7,909,545
    • Issue date Mar 22, 2011
    • Hanita Metal Works, Ltd.
    • Vladimir Volokh
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill bit

    • Patent number 7,137,462
    • Issue date Nov 21, 2006
    • Kabushiki Kaisha Miyanaga
    • Masaaki Miyanaga
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Roof bit carbide blade

    • Patent number 6,817,429
    • Issue date Nov 16, 2004
    • Jimmie Sollami
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drilling tool and throw-away tip for use in drilling work

    • Patent number 6,238,151
    • Issue date May 29, 2001
    • Mitsubishi Materials Corporation
    • Nobuyuki Takagi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill and throwaway tip

    • Patent number 5,829,927
    • Issue date Nov 3, 1998
    • Mitsubishi Materials Corporation
    • Shinichi Nakamura
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill bit of the twist drill type

    • Patent number 5,380,133
    • Issue date Jan 10, 1995
    • Emhart Inc.
    • Walter Schimmer
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill with replaceable cutting inserts

    • Patent number 5,092,718
    • Issue date Mar 3, 1992
    • Metal Cutting Tools Corp.
    • Fred T. Shallenberger
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Composite sintered twist drill

    • Patent number 4,762,445
    • Issue date Aug 9, 1988
    • Precorp, Inc.
    • John A. Bunting
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill bit

    • Patent number 4,687,388
    • Issue date Aug 18, 1987
    • Toshiba Tungaloy Co., Ltd.
    • Yuzo Yokota
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill bit

    • Patent number 4,671,710
    • Issue date Jun 9, 1987
    • Nippon Oil and Fats Co., Ltd.
    • Masatada Araki
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Carbide drill

    • Patent number 4,616,964
    • Issue date Oct 14, 1986
    • Takuji Nomura
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Multigroove drill bit with angled frontal ridges

    • Patent number 4,594,034
    • Issue date Jun 10, 1986
    • Hartmetallwerkzeugfabrik Andreas Maier GmbH & Co. KG
    • Andreas Maier
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill bit

    • Patent number 4,565,471
    • Issue date Jan 21, 1986
    • Mitsubishi Kinzoku Kabushiki Kaisha
    • Hideo Negishi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Carbide tipped drill bit for boring holes in concrete and steel

    • Patent number 4,143,723
    • Issue date Mar 13, 1979
    • Norman H. Schmotzer
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3028773

    • Patent number 3,028,773
    • Issue date Apr 10, 1962
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    2847885

    • Patent number 2,847,885
    • Issue date Aug 19, 1958
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    2201159

    • Patent number 2,201,159
    • Issue date May 21, 1940
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    1544691

    • Patent number 1,544,691
    • Issue date Jul 7, 1925
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    989379

    • Patent number 989,379
    • Issue date Apr 11, 1911
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    Anti-Skive Drill Bit

    • Publication number 20240033833
    • Publication date Feb 1, 2024
    • Stryker European Operations Limited
    • Seamus Gilhooley
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Tool Holder for Lathe and Lathe Provided with the Tool Holder

    • Publication number 20190118268
    • Publication date Apr 25, 2019
    • DMG MORI CO., LTD.
    • Masahiro Yamane
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    DEVICE FOR MAKING CUTOUTS IN SHEET MATERIAL

    • Publication number 20180117683
    • Publication date May 3, 2018
    • Paul Bruce Rothera
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    DRILL AND METHOD FOR MANUFACTURING MACHINED PRODUCT USING SAME

    • Publication number 20170341159
    • Publication date Nov 30, 2017
    • KYOCERA CORPORATION
    • Hiroshi OGAWA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    TUBULAR PART, EMBEDDABLE ELECTRICAL BOX, AND KITS FORMED BY BOTH

    • Publication number 20170054281
    • Publication date Feb 23, 2017
    • Sebastián LÓPEZ RUBIO
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Iron-Cutting Drill

    • Publication number 20160158851
    • Publication date Jun 9, 2016
    • Shajeng Hardware Co., Ltd.
    • Jen Tsung Liao
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    CUTTING TIP

    • Publication number 20160082524
    • Publication date Mar 24, 2016
    • DIAGER
    • Olivier BONHOMME
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Hole-Saw

    • Publication number 20150352645
    • Publication date Dec 10, 2015
    • Thomas J. Spera
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    BORE ADAPTOR

    • Publication number 20150336183
    • Publication date Nov 26, 2015
    • Stephen G. KARL
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Saw Tool for a Machine Tool

    • Publication number 20150328701
    • Publication date Nov 19, 2015
    • ROBERT BOSCH GmbH
    • Marcel Kauz
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    DRILL AND METHOD FOR MANUFACTURING CUT WORKPIECES USING SAME

    • Publication number 20150266108
    • Publication date Sep 24, 2015
    • KYOCERA CORPORATION
    • Kenichirou Koga
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    DRILL BIT WITH AN EXCHANGEABLE CUTTING PORTION

    • Publication number 20150016909
    • Publication date Jan 15, 2015
    • HILTI AKTIENGESELLSCHAFT
    • Matthaeus Hoop
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    DRILL

    • Publication number 20140003877
    • Publication date Jan 2, 2014
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • Yasushi Chiba
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    ROTARY DRILL

    • Publication number 20130025942
    • Publication date Jan 31, 2013
    • Kim Bauer
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    DRILLING TOOL

    • Publication number 20120163934
    • Publication date Jun 28, 2012
    • UWE HOBOHM
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Throwaway Tip for Deep-Hole Drilling and Drill Head for Deep-Hole D...

    • Publication number 20110091296
    • Publication date Apr 21, 2011
    • Unitac, Inc.
    • Takuji Nomura
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Drill Head for Deep-Hole Drilling

    • Publication number 20110067927
    • Publication date Mar 24, 2011
    • Unitac, Inc.
    • Takuji Nomura
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Gun Drill

    • Publication number 20110033255
    • Publication date Feb 10, 2011
    • Unitac, Inc.
    • Takuji Nomura
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    CUTTING TOOL

    • Publication number 20090110501
    • Publication date Apr 30, 2009
    • Iscar, Ltd.
    • Gideon Drori
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    BALLNOSE END MILL

    • Publication number 20080152438
    • Publication date Jun 26, 2008
    • VLADIMIR VOLOKH
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Drill bit

    • Publication number 20060180355
    • Publication date Aug 17, 2006
    • Masaaki Miyanaga
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Ballnose end mill

    • Publication number 20050271482
    • Publication date Dec 8, 2005
    • Vladimir Volokh
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Roof bit carbide blade

    • Publication number 20040065483
    • Publication date Apr 8, 2004
    • Jimmie Sollami
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Indexable drill and cutting inserts therefor

    • Publication number 20010031181
    • Publication date Oct 18, 2001
    • Fred T. Shallenberger
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC