Patents by Inventor Rodney Mackay Sim

Rodney Mackay Sim 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: 10240356
    Abstract: A lifting insert, particularly for embedment in the edges of thin concrete elements is disclosed. The insert has a head at one end which has a through aperture for the connection of a co-operating lifting link and another end for embedment within the concrete. The head of the insert has an interior region bounded on each side by an exterior region which extends to the longitudinal edges of the insert. The exterior region is thicker than the interior region and the boundary between the two regions defines an abutment surface. The thickness and width of the interior region is dimensioned to allow the lifting link to be connected to the head of the insert and the thickness of the outer region is dimensioned so as to restrict the rotation of the lifting link when a load is applied normal to the axis of the insert, and to effectively transfer the load by a couple developed across the full cross-section of the insert e.g. when tilting the concrete element from a horizontal position to a vertical position.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: March 26, 2019
    Assignee: Rodney Mackay Sim
    Inventor: Rodney Mackay Sim
  • Publication number: 20180187436
    Abstract: A lifting insert, particularly for embedment in the edges of thin concrete elements is disclosed. The insert has a head at one end which has a through aperture for the connection of a co-operating lifting link and another end for embedment within the concrete. The head of the insert has an interior region bounded on each side by an exterior region which extends to the longitudinal edges of the insert. The exterior region is thicker than the interior region and the boundary between the two regions defines an abutment surface. The thickness and width of the interior region is dimensioned to allow the lifting link to be connected to the head of the insert and the thickness of the outer region is dimensioned so as to restrict the rotation of the lifting link when a load is applied normal to the axis of the insert, and to effectively transfer the load by a couple developed across the full cross-section of the insert e.g. when tilting the concrete element from a horizontal position to a vertical position.
    Type: Application
    Filed: May 25, 2016
    Publication date: July 5, 2018
    Inventor: Rodney Mackay Sim
  • Patent number: 6095483
    Abstract: A recess former (130) is adapted for forming a recess (133) around the head of an anchor element (131) which is embedded in an edge of a concrete slab during casting thereof. The recess former (130) has an outer curved surface extending from a flat base surface. The outer surface has a hole at its apex to allow the anchor (131) to extend out of the recess former (130). A web (137) is located at the outer surface and has a channel (138) which is adapted for positioning of shear reinforcement means. The web (137) forming an air gap after the recess former (130) is removed from the recess.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: August 1, 2000
    Assignee: Alan H. Reid Pty Ltd
    Inventors: Rodney Mackay Sim, Barry James Metham
  • Patent number: 5829207
    Abstract: An anchor device (10) for the edge lifting of a concrete slab (11) is disclosed. The anchor device (10) comprises an anchor element (12) with a shank (14) partially embedded in the concrete slab (11) with one end of the anchor element (12) having a lifting head (15) positioned a small distance inwardly of the edge (16) of the concrete slab (11) within a recess (17) form in the edge (16) of the slab (11). Shear reinforcement bars (18) are also partially embedded in the slab (11) and partially positioned within the recess (17). The portion of the shear reinforcement bars (18) which is positioned within the recess (17) is spaced between the head (15) and the concrete of the slab (11) in the direction of lifting.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: November 3, 1998
    Assignee: Alan H. Reid Pty Ltd.
    Inventors: Rodney Mackay Sim, Barry James Metham