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David Aperahama CALVERT

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  • Lower Hutt, NZ
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Patents Grantslast 30 patents

  • Information Patent Grant

    Locking device for a quick coupler
    • Patent number 11,846,083
    • Issue date Dec 19, 2023
    • WEDGELOCK EQUIPMENT LIMITED
    • Michael Hugh James Rider
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Coupler for earth moving or materials handling machine
    • Patent number 10,280,588
    • Issue date May 7, 2019
    • Cascade Corporation
    • Matthew James Calvert
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Coupler for earth moving or materials handling machine
    • Patent number 9,863,117
    • Issue date Jan 9, 2018
    • Cascade Corporation
    • Matthew James Calvert
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Safety locking device
    • Patent number 8,347,974
    • Issue date Jan 8, 2013
    • Matthew James Calvert
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Safety locking device
    • Patent number 7,828,070
    • Issue date Nov 9, 2010
    • Wedgelock LLC
    • Matthew James Calvert
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

  • Information Patent Application

    A LOCKING DEVICE FOR A QUICK COUPLER
    • Publication number 20240068196
    • Publication date Feb 29, 2024
    • WEDGELOCK EQUIPMENT LIMITED
    • Michael Hugh James RIDER
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    PACKER
    • Publication number 20220381000
    • Publication date Dec 1, 2022
    • WEDGELOCK EQUIPMENT LIMITED
    • David Aperahama CALVERT
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    A LOCKING DEVICE FOR A QUICK COUPLER
    • Publication number 20180355579
    • Publication date Dec 13, 2018
    • WEDGELOCK EQUIPMENT LIMITED
    • Michael Hugh James RIDER
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Coupler for Earth Moving or Materials Handling Machine
    • Publication number 20180127947
    • Publication date May 10, 2018
    • Cascade Corporation
    • Matthew James Calvert
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Safety Locking Device
    • Publication number 20110010915
    • Publication date Jan 20, 2011
    • WEDGELOCK LLC
    • Matthew James CALVERT
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    COUPLER FOR EARTH MOVING OR MATERIALS HANDLING MACHINE
    • Publication number 20100232920
    • Publication date Sep 16, 2010
    • Matthew James Calvert
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Safety locking device
    • Publication number 20080067784
    • Publication date Mar 20, 2008
    • WEDGELOCK EQUIPMENT LIMITED
    • Matthew James Calvert
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING