Patents by Inventor James W. Dunstan

James W. Dunstan 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: 4045071
    Abstract: A system for transporting and storing long extrusions including a rack upon which a bundle of extrusions is stacked and a pick-up unit which engages the rack so that the stacked bundle of extrusions may be lifted. The rack includes a pair of spaced apart U-shaped frames each having a base and upwardly extending legs for receiving a stacked bundle of elongated extrusions. Each leg is formed of an outwardly opening channel whose base is provided with a vertically elongated slot near its upper end and with pins arranged within and extending transversely of the channel, one at the lower end of the slot and one at the upper end of the slot. Strapping is engaged around the lower pins and extended through the slots to span the space between the pair of legs of the frame to engage the upper portion of the bundle for securing the bundle within the frame. The upper ends of the legs of one frame telescopically fit into the base of a frame located above it for forming stacks of racked bundles.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: August 30, 1977
    Assignee: Acorn Building Components, Inc.
    Inventor: James W. Dunstan