Patents by Inventor Sidney A. Patten

Sidney A. Patten 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).

  • Elevating load platforms
    Patent number: 7383923
    Abstract: An elevating load platform comprising a base member and a load supporting member interconnected by a linkage means that facilitates vertical movement of the load supporting member generally parallel to the base member, and a plurality of coil springs positioned to urge the load supporting member upwardly relative to the base member so that when the load supporting member is laden the coil springs are compressed, and as the load is progressively removed the coil springs urge the load supporting member upwards to thereby maintain the load supporting member at a desired height, the linkage means comprising a pair of spaced scissor linkages interconnected by a central cross-member, the plurality of compression springs being positioned in a spaced array interposed between the base member and the cross-member.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: June 10, 2008
    Assignee: Amiata Holdings Pty Ltd.
    Inventors: Sidney A. Patten, David M. Munro