Patents by Inventor Stewart James Wright

Stewart James Wright 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).

  • Patent number: 10501297
    Abstract: A lockable floating forklift tine system including a lift carriage having at least one cross bar to mount at least one forklift tine, the at least one cross bar having a number of abutment shoulders spaced there across and at least one forklift tine having a mounting portion to mount the at least one forklift tine relative to the at least one cross bar, the mounting portion having a locking member movable relative to the mounting portion between an engaged condition in which the locking member engages at least one of the abutment shoulders preventing lateral movement relative to the at least one cross bar and a free condition in which the locking member is free of the abutment shoulders allowing the forklift tine to be moved laterally along the at least one cross bar, the locking member biased into the engaged condition.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: December 10, 2019
    Assignee: DIGGA AUSTRALIA PTY LTD
    Inventor: Stewart James Wright
  • Patent number: 10309159
    Abstract: A ground working tool comprises a tooth holder (70) and a replaceable tooth (30), the tooth holder (70) comprising a recess (74) for receiving at least part of a tooth (30), the recess (74) having an upper surface (80) and an opposed lower surface (78), at least one projection (92, 94) of hard material extending from the upper surface or the lower surface of the recess of the tooth holder (74), the tooth (30) comprising a distal part (32) for engaging or working the ground or earth during use and a proximal part (34), the proximal part (34) of the tooth (30) being received within the recess (74) of the tooth holder (70), the proximal part (34) of the tooth having an upper surface (33) and a lower surface (35), the tooth (30) having at least one recess (60, 62) on the upper surface or the lower surface of the proximal part thereof, the at least one recess (60, 62) being of complementary size and shape to the at least one projection (92, 94) of hard material in the recess of the tooth holder such that the at le
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: June 4, 2019
    Assignee: Digga Australia Pty Ltd.
    Inventor: Stewart James Wright
  • Publication number: 20180229986
    Abstract: A lockable floating forklift tine system including a lift carriage having at least one cross bar to mount at least one forklift tine, the at least one cross bar having a number of abutment shoulders spaced there across and at least one forklift tine having a mounting portion to mount the at least one forklift tine relative to the at least one cross bar, the mounting portion having a locking member movable relative to the mounting portion between an engaged condition in which the locking member engages at least one of the abutment shoulders preventing lateral movement relative to the at least one cross bar and a free condition in which the locking member is free of the abutment shoulders allowing the forklift tine to be moved laterally along the at least one cross bar, the locking member biased into the engaged condition.
    Type: Application
    Filed: July 20, 2016
    Publication date: August 16, 2018
    Inventor: Stewart James WRIGHT
  • Publication number: 20170067225
    Abstract: A crumber for a trencher machine is provided, the crumber including a crumber mount for mounting to a crumber boom, and a crumber arm, the crumber arm being mounted to the crumber mount by a linkage, the linkage having a first linkage arm and a second linkage arm, the linkage being arranged to allow rotation of at least one of the linkage arms of at least 75°. The crumber mount has at least one edge or surface of the crumber arm, wherein the least one edge or surface of the crumber mount and the complementary edge or surface of the crumber arm abut on each other when the crumber arm is in a lowermost position. In this manner, the crumber arm is supported along an extended length when in the lowermost position.
    Type: Application
    Filed: May 6, 2015
    Publication date: March 9, 2017
    Inventor: Stewart James WRIGHT
  • Publication number: 20160160571
    Abstract: A ground working tool comprises a tooth holder (70) and a replaceable tooth (30), the tooth holder (70) comprising a recess (74) for receiving at least part of a tooth (30), the recess (74) having an upper surface (80) and an opposed lower surface (78), at least one projection (92, 94) of hard material extending from the upper surface or the lower surface of the recess of the tooth holder (74), the tooth (30) comprising a distal part (32) for engaging or working the ground or earth during use and a proximal part (34), the proximal part (34) of the tooth (30) being received within the recess (74) of the tooth holder (70), the proximal part (34) of the tooth having an upper surface (33) and a lower surface (35), the tooth (30) having at least one recess (60, 62) on the upper surface or the lower surface of the proximal part thereof, the at least one recess (60, 62) being of complementary size and shape to the at least one projection (92, 94) of hard material in the recess of the tooth holder such that the at le
    Type: Application
    Filed: July 18, 2014
    Publication date: June 9, 2016
    Inventor: Stewart James Wright
  • Patent number: 8317647
    Abstract: A drive unit comprises an output shaft, two or more hydraulic motors, each hydraulic motor being adapted to drive the output shaft, and hydraulic fluid distribution means for supplying relatively high pressure hydraulic fluid to the drive motors and for removing relatively low pressure hydraulic fluid from the drive motors. The hydraulic fluid distribution means comprises a hydraulic fluid inlet for connecting to a hydraulic line to provide relatively high pressure hydraulic fluid to the two or more hydraulic motors and a hydraulic fluid outlet for removing relatively low pressure hydraulic fluid from the two or more hydraulic motors.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: November 27, 2012
    Assignee: Digga Australia Pty Ltd.
    Inventor: Stewart James Wright
  • Publication number: 20100298080
    Abstract: A drive unit comprises an output shaft, two or more hydraulic motors, each hydraulic motor being adapted to drive the output shaft, and hydraulic fluid distribution means for supplying relatively high pressure hydraulic fluid to the drive motors and for removing relatively low pressure hydraulic fluid from the drive motors. The hydraulic fluid distribution means comprises a hydraulic fluid inlet for connecting to a hydraulic line to provide relatively high pressure hydraulic fluid to the two or more hydraulic motors and a hydraulic fluid outlet for removing relatively low pressure hydraulic fluid from the two or more hydraulic motors.
    Type: Application
    Filed: May 20, 2009
    Publication date: November 25, 2010
    Inventor: Stewart James Wright
  • Patent number: 6938365
    Abstract: A dampening means for a tool, the dampening means controlling pivoting of the tool with respect to a support means of a support structure.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: September 6, 2005
    Inventor: Stewart James Wright
  • Publication number: 20030183400
    Abstract: Dampening means (14, 18) for a tool (3), the dampening means (14, 18) controlling pivoting of the tool (3) with respect to a support means of a support structure (10).
    Type: Application
    Filed: March 28, 2003
    Publication date: October 2, 2003
    Inventor: Stewart James Wright