Patents by Inventor Thomas I. Stuart

Thomas I. Stuart 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: 7032942
    Abstract: This invention describes an ergonomic shovel having an extensible grip connectably attached to a tether and return spring obstensibly located inside the primary handle and having a fairlead to facilitate the extending and retracting in accordance with prior art for stand-up shovels. A pocket or frame structure is described for disposition of the retracted auxiliary grip to facilitate storage.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: April 25, 2006
    Inventor: Thomas I. Stuart
  • Publication number: 20040232715
    Abstract: This invention describes an extensible grip having a return line to facilitate the extending and retracting of a tethered grip of an ergonomic shovel in accordance with prior art for stand-up shovels using a flexible tether and biasing means. A pocket or frame structure is described for disposition of the retracted auxiliary grip to facilitate storage.
    Type: Application
    Filed: April 26, 2004
    Publication date: November 25, 2004
    Inventor: Thomas I. Stuart
  • Patent number: 6311465
    Abstract: A rake for raking and gripping debris having an elongate handle, a rake head and a pivotable debris collection device. The rake head has a plurality of tines and is fixedly attached to one end of the elongate handle. The pivotable debris collection device is in the form of a grapple attached to and pivotable about a fulcrum axis attached to the rake head. An elongate string is attached to the rake head at one end and to a grip slidingly arranged on the elongate handle at the other end. Further, a biasing device urges the grapple towards an open position, where the grapple is pivoted away from the rake head tines. The rake has, a pulley to multiply the force which is applied to the grapple from the grip via the elongate string.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: November 6, 2001
    Inventor: Thomas I. Stuart