Patents by Inventor Robert G. Gray

Robert G. Gray 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: 7467945
    Abstract: A candle assembly includes a melting plate having a capillary pedestal, a wick holder that fits over the capillary pedestal, a wick that is carried by the wick holder, and a fuel element that fits over the wick and wick holder and rests on the melting plate. The fuel element includes a duct therethrough for receiving the wick holder. The fuel element is adapted to prevent improper insertion of the wick holder into the duct. The duct is adapted to facilitate successful initial ignition and sustained burn of the wick by having a width that is selected to ensure that melted fuel material engages the wick when dripping down the duct. A capillary well disposed between the wick holder and the capillary pedestal may be adapted to promote a successful relight after an initial burn of the candle assembly. A candle holder, such as including the melting plate supported by a base, may be adapted to promote laminar air flow thereacross during a burn in a substantially calm atmospheric environment.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: December 23, 2008
    Assignee: S.C. Johnson & Son, Inc.
    Inventors: Chris A. Kubicek, Cory J. Nelson, Robert G. Gray, Thomas J. Szymczak, Elizabeth J. Jameson, Georgia A. Tenhagen, Paul E. Furner, Ralph Schwarz
  • Patent number: 7229280
    Abstract: The present invention relates to melting plate candles which employ heat conductive elements to distribute heat from a burning flame at a wick to a support plate for a solid fuel and to the body of said solid fuel, so as to more rapidly liquefy the solid fuel, such as paraffin wax, and to more uniformly and intensely heat such fuels to increase the efficiency of consumption thereof and to more rapidly release volatile materials contained within said fuels. The heat conductive support plate is configured so as to have a capillary pedestal upon the surface thereof, which magnetically engages a wick holder comprising a preferably consumable wick and heat conductive fins which conduct heat from a flame upon said wick to said support plate, said magnetic engagement of said wick holder preventing accidental removal thereof from said pedestal. The fuel may be provided in various forms, configured to cooperatively engage said wick holder and support plate, and may comprise various volatile materials.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: June 12, 2007
    Assignee: S.C. Johnson & Son, Inc.
    Inventors: Chris A. Kubicek, Cory J. Nelson, Robert G. Gray, Paul E. Furner
  • Patent number: 6769905
    Abstract: A compression-molded candle product having multiple layers and method of maufacture thereof are disclosed. The candle may be optionally configured to dispense one or more volatile additives. The additive may be fragrances, sanitization agents, deodorants, insect control compounds or any other volatile material, or mixture thereof. The candle may optionally have separate colorants in each layer.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: August 3, 2004
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Robert G. Gray, Nihila Ravirajan, Sandra E. Blevins-Steer, Kathryn H. Ferguson, Georgia A. Tenhagen
  • Publication number: 20030134246
    Abstract: The wick of a candle is anchored above the bottom of the candle a flame extinguishing distance so that the wick is extinguished by the candle's molten solid fuel when the wick is consumed. Placement of the wick in this manner helps to eliminate bum through. Additionally, a bottom cavity may be formed in the candle. The cavity may be used for the purpose of helping to anchor the wick a desired flame extinguishing distance above the bottom surface of the candle. The cavity may be advantageously filled with scrap wax material since it will not be consumed by the burning wick.
    Type: Application
    Filed: December 11, 2002
    Publication date: July 17, 2003
    Inventors: Robert G. Gray, Kathryn H. Ferguson, Georgia A. Tenhagen, Kara L. Kotary, Eugene Placzkowski
  • Publication number: 20030134244
    Abstract: A compression-molded candle product having multiple layers and method of maufacture thereof are disclosed. The candle may be optionally configured to dispense one or more volatile additives. The additive may be fragrances, sanitization agents, deodorants, insect control compounds or any other volatile material, or mixture thereof. The candle may optionally have separate colorants in each layer.
    Type: Application
    Filed: December 11, 2002
    Publication date: July 17, 2003
    Inventors: Robert G. Gray, Nihila Ravirajan, Sandra E. Blevins-Steer, Kathryn H. Ferguson, Georgia A. Tenhagen
  • Publication number: 20020065787
    Abstract: A computer-and-network based system and method for conducting efficient, third-party-free, direct commercial transactions between qualified purchasers and vendors. Pre-established and pre-agreed-upon relational transactional protocols, which can be selectively revised as necessary by participants, substitute for conventional third-party intermediary activities, such as credit approval and authorization activities.
    Type: Application
    Filed: August 24, 2001
    Publication date: May 30, 2002
    Inventors: E. Mark Evers, Robert G. Gray, Vincent Mangano