Patents by Inventor William Roy Mackintosh Lindsay

William Roy Mackintosh Lindsay 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: 4118059
    Abstract: The storage of pipes hoisted by means of a wire-rope sling tightly noosed around the pipes to form a pipe bundle is facilitated by clamping the rope in the sleeve of the sling choker to lock the tight noose against loosening when the pipe bundle is deposited on a support and is connected from the hoisting means. The sleeve bore is of generally keyhole section. The rope is a sliding fit in the part-cylindrical portion of the bore so as to be locked in said portion and project laterally into the adjacent channel portion of the bore. By force-fitting a pin into the channel portion in which the pin is a sliding fit, the rope length in the bore is clamped against the part-cylindrical portion of the bore.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: October 3, 1978
    Assignee: Gyrac Engineering Products Limited
    Inventor: William Roy Mackintosh Lindsay