TREA

for grinding walls of very fine holes

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  • CPC
  • B24B5/48
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B24Grinding technology B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS B24B5/00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces Accessories therefor

Current Industry

B24B5/48for grinding walls of very fine holes
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Abrasive rotary tool with abrasive agglomerates
    • Patent number 11,040,429
    • Issue date Jun 22, 2021
    • 3M Innovative Properties Company
    • Bruce A. Sventek
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Flexible abrasive rotary tool
    • Patent number 10,906,156
    • Issue date Feb 2, 2021
    • 3M Innovative Properties Company
    • Bruce A. Sventek
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Diameter expansion drill bit
    • Patent number 9,573,238
    • Issue date Feb 21, 2017
    • FS Technical Corporation
    • Shogo Fujita
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Rimless spectacle lens bore polishing method and apparatus
    • Patent number 7,726,808
    • Issue date Jun 1, 2010
    • Gentex Optics, Inc.
    • Paresh Kitchloo
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Adjustable abrading tool
    • Patent number 6,955,591
    • Issue date Oct 18, 2005
    • William R. Deware
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Multistage fine hole machining method and device
    • Patent number 6,817,925
    • Issue date Nov 16, 2004
    • Seiko Instruments Inc.
    • Tatsuji Saigo
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Deep drilling device
    • Patent number 6,287,245
    • Issue date Sep 11, 2001
    • TBT Tiefbohrtechnik GmbH
    • Hermann Randecker
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill for drilling brittle materials
    • Patent number 5,643,069
    • Issue date Jul 1, 1997
    • Heraeus Quarzglas GmbH
    • Uwe Christiansen
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Ceramic parts having small hole(s) and method of manufacturing the...
    • Patent number 5,501,892
    • Issue date Mar 26, 1996
    • NGK Insulators, Ltd.
    • Shinji Ohtsubo
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Method of manufacturing hollow ceramic part with hole therein
    • Patent number 5,476,623
    • Issue date Dec 19, 1995
    • NGK Insulators, Ltd.
    • Shinji Ohtsubo
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Method and apparatus for surface grinding of small diameter long bo...
    • Patent number 4,831,783
    • Issue date May 23, 1989
    • Gunter Frohn
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Workpiece centerless support device for use in internal grinding ma...
    • Patent number 4,586,295
    • Issue date May 6, 1986
    • Seiko Seiki Kabushiki Kaisha
    • Katsutoshi Ishii
    • G02 - OPTICS
  • Information Patent Grant

    Process for the production of drawing die bores
    • Patent number 4,321,843
    • Issue date Mar 30, 1982
    • Akzo, N.V.
    • Max Schwab
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Machining apparatus utilizing oscillation of tuning fork
    • Patent number 4,258,690
    • Issue date Mar 31, 1981
    • Ono; Yoshiro
    • Akira Takahashi
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Ultrasonic lapping apparatus for drawing dies
    • Patent number 4,063,542
    • Issue date Dec 20, 1977
    • Nissin Diamond Co., Ltd.
    • Yasukuni Uemura
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Die lapping apparatus
    • Patent number 4,043,080
    • Issue date Aug 23, 1977
    • Die-Quip Corporation
    • Thomas H. Maxwell
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    3686797
    • Patent number 3,686,797
    • Issue date Aug 29, 1972
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    3331263
    • Patent number 3,331,263
    • Issue date Jul 18, 1967
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3283392
    • Patent number 3,283,392
    • Issue date Nov 8, 1966
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    3131517
    • Patent number 3,131,517
    • Issue date May 5, 1964
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3058270
    • Patent number 3,058,270
    • Issue date Oct 16, 1962
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2979870
    • Patent number 2,979,870
    • Issue date Apr 18, 1961
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2790273
    • Patent number 2,790,273
    • Issue date Apr 30, 1957
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2787090
    • Patent number 2,787,090
    • Issue date Apr 2, 1957
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2699017
    • Patent number 2,699,017
    • Issue date Jan 11, 1955
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2621448
    • Patent number 2,621,448
    • Issue date Dec 16, 1952
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2616224
    • Patent number 2,616,224
    • Issue date Nov 4, 1952
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2574793
    • Patent number 2,574,793
    • Issue date Nov 13, 1951
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2567299
    • Patent number 2,567,299
    • Issue date Sep 11, 1951
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2538461
    • Patent number 2,538,461
    • Issue date Jan 16, 1951
    • B24 - GRINDING POLISHING

Patents Applicationslast 30 patents