Patents by Inventor Donald W. Hart

Donald W. Hart 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: 6155480
    Abstract: A blank of foldable material capable of being assembled into a carton having a contoured top front surface and the carton formed thereby is disclosed. The carton is intended to be utilized in a dispenser having a back plate and a front cover with the front cover being hingedly attached to the back plate so as to be moveable between open and closed positions and, in the closed position, to contain the components such as the carton. The particular type of dispenser for which the carton is design is one in which the top portion of the cover tapers adjacent its top end toward the back plate when closed. The blank includes a generally rectangular blank of material having top, bottom and first and second opposed side edges with three fold lines spaced inwardly from and parallel to the edges so as to form there between front and rear side walls and first and second side walls.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: December 5, 2000
    Assignee: Gojo Industries, Inc.
    Inventors: Charles W. Botsford, Marc Fagelman, Donald W. Hart
  • Patent number: 4375571
    Abstract: 4-Vinylcyclohexene-1 is converted to ethylbenzene by contacting the vinylcyclohexene at a temperature ranging from about 100.degree. C. to about 450.degree. C. with a catalyst prepared by impregnating an alumina with an oxide or decomposable salt of Na, K, Rb, Cs, Ca, Sr and/or Ba and calcining the impregnated material at a temperature ranging from about 450.degree. C. to about 750.degree. C.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: March 1, 1983
    Assignee: Shell Oil Company
    Inventors: Donald W. Hart, Lynn H. Slaugh
  • Patent number: D436859
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: January 30, 2001
    Assignee: Gojo Industries, Inc.
    Inventors: Charles W. Botsford, Marc Fagelman, Donald W. Hart