wherein the cams are involved in a progressive mutual engagement with increasing pressure of the tool to the working surface

Patents Grantslast 30 patents

  • Information Patent Grant

    Power tool and impact tool

    • Patent number 12,122,029
    • Issue date Oct 22, 2024
    • Makita Corporation
    • Takeshi Kamiya
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Impact drill

    • Patent number 11,673,247
    • Issue date Jun 13, 2023
    • Nanjing Chervon Industry Co., Ltd.
    • Wei Lu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hammer drill with inclined clutch plate

    • Patent number 5,628,374
    • Issue date May 13, 1997
    • Black & Decker Inc.
    • John E. Dibbern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Rotary hammer driving mechanism

    • Patent number 4,750,567
    • Issue date Jun 14, 1988
    • Black & Decker Inc.
    • Horst Grossmann
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hammer drill

    • Patent number 4,732,217
    • Issue date Mar 22, 1988
    • Robert Bosch GmbH
    • Manfred Bleicher
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Rotary hammer driving mechanism

    • Patent number 4,657,088
    • Issue date Apr 14, 1987
    • Black & Decker Inc.
    • Horst Grossmann
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hammer drill adapter

    • Patent number 4,489,792
    • Issue date Dec 25, 1984
    • Atef E. F. Fahim
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hammer drill

    • Patent number 4,366,869
    • Issue date Jan 4, 1983
    • Hilti Aktiengesellschaft
    • Rolf Bereiter
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hammer drill

    • Patent number 4,189,011
    • Issue date Feb 19, 1980
    • Metabowerke GmbH & Co.
    • Robert Eberle
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    3835715

    • Patent number 3,835,715
    • Issue date Sep 17, 1974
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    3809168

    • Patent number 3,809,168
    • Issue date May 7, 1974
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    3789933

    • Patent number 3,789,933
    • Issue date Feb 5, 1974
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    3736992

    • Patent number 3,736,992
    • Issue date Jun 5, 1973
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    3680642

    • Patent number 3,680,642
    • Issue date Aug 1, 1972
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    3511321

    • Patent number 3,511,321
    • Issue date May 12, 1970
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3433082

    • Patent number 3,433,082
    • Issue date Mar 18, 1969
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    3430707

    • Patent number 3,430,707
    • Issue date Mar 4, 1969
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    3363700

    • Patent number 3,363,700
    • Issue date Jan 16, 1968
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    3119274

    • Patent number 3,119,274
    • Issue date Jan 28, 1964
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    3015244

    • Patent number 3,015,244
    • Issue date Jan 2, 1962
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    2942852

    • Patent number 2,942,852
    • Issue date Jun 28, 1960
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    2799035

    • Patent number 2,799,035
    • Issue date Jul 16, 1957
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    2724573

    • Patent number 2,724,573
    • Issue date Nov 22, 1955
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    2484471

    • Patent number 2,484,471
    • Issue date Oct 11, 1949
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    2328270

    • Patent number 2,328,270
    • Issue date Aug 31, 1943
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    1660579

    • Patent number 1,660,579
    • Issue date Feb 28, 1928
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS