Patents by Inventor Steven Lawn

Steven Lawn 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: 20240206389
    Abstract: A harvester cutter 1 including a rotating cutter 10, the rotating cutter 10 including a blade 20, wherein; a leading edge 21 of the blade 20 is located further up a rotational 11 axis of the rotating cutter 10 than a trailing edge 22 of the blade 20 at any radial location on a cutting portion 23 of the blade 20 relative to the rotational axis 11 of the rotating cutter 10.
    Type: Application
    Filed: February 21, 2022
    Publication date: June 27, 2024
    Inventor: Steven Lawn
  • Patent number: 11266069
    Abstract: A cane pickup and separation device mountable to a vehicle, the front of which is depicted in FIG. 1 and identified by reference No. 2. The device includes at least two sorting augers with auger tips, a frame, a separation wall, and a pickup spiral. The sorting augers each have auger tips that are adapted to be positioned slightly above ground level. The sorting augers diverge relative to one another and are inclined upwardly and rearwardly at similar inclined angles ? to the horizontal to define a diverging gap. Behind the augers is the upwardly and rearwardly inclined separation wall. The separation wall is rearward of the pair of augers and extends substantially across the diverging gap. The frame is mountable to the vehicle and is adapted to support the pair of sorting augers and the separation wall. The device further includes at least one pickup spiral set at a shallower angle ? inclination to the horizontal than the steeply inclined angle ?.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: March 8, 2022
    Inventor: Steven Lawn
  • Publication number: 20210219494
    Abstract: A cane pickup and separation device mountable to a vehicle, the front of which is depicted in FIG. 1 and identified by reference No. 2. The device includes at least two sorting augers with auger tips, a frame, a separation wall, and a pickup spiral. The sorting augers each have auger tips that are adapted to be positioned slightly above ground level. The sorting augers diverge relative to one another and are inclined upwardly and rearwardly at similar inclined angles Ø to the horizontal to define a diverging gap. Behind the augers is the upwardly and rearwardly inclined separation wall. The separation wall is rearward of the pair of augers and extends substantially across the diverging gap. The frame is mountable to the vehicle and is adapted to support the pair of sorting augers and the separation wall. The device further includes at least one pickup spiral set at a shallower angle n inclination to the horizontal than the steeply inclined angle Ø.
    Type: Application
    Filed: June 3, 2019
    Publication date: July 22, 2021
    Inventor: Steven Lawn
  • Patent number: 10986779
    Abstract: An apparatus comprising a pair of associated chopper drums, including a top chopper drum and a lower chopper drum. The chopper drum defines an axial cylindrical bore having a rotational axis into which is mounted a drive shaft (not shown) that is keyed radially to drive the chopper drum. Radially spaced from the rotational axis are a plurality of outwardly facing recesses defined by walls of a body of the chopper drum. Each recess extends longitudinally along the periphery of the chopper drum end-end to provide a recess for mounting a corresponding plurality of cutting blades. Each recess is defined by a longitudinally extending lower wall and an opposed and circumferentially spaced. The cross sectional profile of the chopper drum is generally consistent throughout its length and includes a plurality of ridges and troughs with the ridges built up to define therein the recesses, the ridges being interposed by the troughs.
    Type: Grant
    Filed: May 30, 2016
    Date of Patent: April 27, 2021
    Assignee: EHS MANUFACTURING PTY LTD
    Inventor: Steven Lawn
  • Publication number: 20180125005
    Abstract: An apparatus comprising a pair of associated chopper drums, including a top chopper drum and a lower chopper drum. The chopper drum defines an axial cylindrical bore having a rotational axis into which is mounted a drive shaft (not shown) that is keyed radially to drive the chopper drum. Radially spaced from the rotational axis are a plurality of outwardly facing recesses defined by walls of a body of the chopper drum. Each recess extends longitudinally along the periphery of the chopper drum end-end to provide a recess for mounting a corresponding plurality of cutting blades. Each recess is defined by a longitudinally extending lower wall and an opposed and circumferentially spaced. The cross sectional profile of the chopper drum is generally consistent throughout its length and includes a plurality of ridges and troughs with the ridges built up to define therein the recesses, the ridges being interposed by the troughs.
    Type: Application
    Filed: May 30, 2016
    Publication date: May 10, 2018
    Inventor: Steven Lawn