Patents by Inventor David Carswell

David Carswell 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: 6591451
    Abstract: An automotive hinge adapted to facilitate removable attachment of a closure panel to a body structure comprises a door component comprising upper and lower door component pivot arms adapted to be mounted to a vehicular closure panel, a body component comprising upper and lower body component pivot doors adapted to be mounted to a vehicular body structure, a common pivot axis around which the door component and body component are adapted to rotate in relation to each other, and a cylindrical protrusion adapted to be coaxially aligned with the pivot axis and structurally attached to and extended above the upper pivot arm of the body component, such that the door component is adapted to interleave over the body component, dimensionally locating the closure panel and the body structure by means of an external cylindrical bearing surface on the cylindrical protrusion, and is adapted to be held in assembly by means of a pivot pin which is adapted to extend through both said pivot arms of both said hinge components
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: July 15, 2003
    Assignee: Multimatic, Inc.
    Inventors: Rudolf Gruber, David Carswell, John J. Salmon
  • Publication number: 20020174518
    Abstract: An automotive hinge adapted to facilitate removable attachment of a closure panel to a body structure comprises a door component comprising upper and lower door component pivot arms adapted to be mounted to a vehicular closure panel, a body component comprising upper and lower body component pivot doors adapted to be mounted to a vehicular body structure, a common pivot axis around which the door component and body component are adapted to rotate in relation to each other, and a cylindrical protrusion adapted to be coaxially aligned with the pivot axis and structurally attached to and extended above the upper pivot arm of the body component, such that the door component is adapted to interleave over the body component, dimensionally locating the closure panel and the body structure by means of an external cylindrical bearing surface on the cylindrical protrusion, and is adapted to be held in assembly by means of a pivot pin which is adapted to extend through both said pivot arms of both said hinge components
    Type: Application
    Filed: May 17, 2002
    Publication date: November 28, 2002
    Inventors: Rudolf Gruber, David Carswell, John J. Salmon
  • Patent number: 5173991
    Abstract: A checking mechanism for a closure member and a frame, the closure member moveable in relation to the frame, the checking mechanism comprising a housing affixed to the closure member or the frame and having an opening therewith; a link member having a core and having two sides, the link member being fastened to either the frame or the closure member, the link member being moveable in relation to the housing and passing through the opening therewith; link engaging means secured with the housing proximate the opening at, at least one side of the link member, and retained in at least one compatible groove formed proximate at least one side of the link member for the positioning of the link member in relation to the housing, the grooves of the link member being formed by coating the core thereof with moldable material prior to assembly of the checking mechanism.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: December 29, 1992
    Assignee: Multimatic Inc.
    Inventor: David Carswell