Patents by Inventor John F. Thorn

John F. Thorn 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: 5238146
    Abstract: A support device for insertion beneath a portion of one end of a drum, configured for stable engagement with a chime or a groove so that the drum may be reliably and securely supported in a tilted position for an extended period of time to facilitate emptying of residue therefrom. The device preferably has a generally wedge-shaped configuration with an upper surface which slopes downward from back to front The device may have a curved channel to receive a drum chime, and/or one or more ears for insertion in a peripheral end-wall groove. The device may be employed to facilitate either pumping of residue with the drum in an upright position, or draining of the residue through an opening in the lid by inverting the drum. In the latter case, to facilitate proper placement of drums of the type having a pair of spouts at diametrically opposed locations on the lid, an opening is provided in the upper wall of the device to accommodate one of the spouts.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: August 24, 1993
    Assignee: Van Leer Containers, Inc.
    Inventor: John F. Thorne, Jr.
  • Patent number: 4901493
    Abstract: An improved door assembly having compression molded frame skins defining a central opening, compression molded panel skins in said central opening and a unitary foam core for the panel and the frame is provided. The frame skins and panel skins define cavities which communicate with each other. The panel skins may occupy all or only a portion of the central opening and may be formed in a number of different configurations.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: February 20, 1990
    Assignee: Therma-Tru Corp.
    Inventor: John F. Thorn