Patents by Inventor Douglas William McIlwraith

Douglas William McIlwraith has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20020092694
    Abstract: A skid-steer mini-loader (10) has a compact chassis formed by two side walls (11,12) fixed to either side of a tank (13) which forms an oil reservoir for a hydraulic drive system for the mini-loader. A hydraulic pump (30) is located within the tank (13), and is driven by an engine (31) mounted directly on top of the tank. A console panel (19) having controls (20) thereon forms the rear wall and top of a cover for the power plant. The console panel is pivotally mounted at its lower end to the chassis, enabling the panel (19) to be opened out and thereby facilitate access to the power plant.
    Type: Application
    Filed: March 13, 2002
    Publication date: July 18, 2002
    Inventor: Douglas William McIlwraith
  • Patent number: 6397967
    Abstract: A skid-steer mini-loader (10) has a compact chassis formed by two side walls (11,12) fixed to either side of a tank (13) which forms an oil reservoir for a hydraulic drive system for the mini-loader. A hydraulic pump (30) is located within the tank (13), and is driven by a motor (31) mounted directly on top of the tank. A panel (19), which forms the rear wall and top of a cover for the power plant, is pivotally mounted at its lower end to the chassis, enabling the panel (19) to be opened out and allow access to the power plant. The mini-loader has a lifting arm (17) of inverted channel configuration with a relatively wide central web which forms the front face of the arm. The lifting arm has a mounting plate (16) pivotally mounted at its free end for mounting a bucket (15) or other attachment. A toggle arm (34) is provided on the mounting plate (16) for automatically locking the attachment to the mounting plate.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: June 4, 2002
    Assignee: Jaden Charters Pty Ltd.
    Inventor: Douglas William McIlwraith
  • Patent number: D438218
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: February 27, 2001
    Assignee: Jaden Charters Pty Ltd
    Inventor: Douglas William McIlwraith