Patents Represented by Attorney Stewart A. Fraser
  • Patent number: 8283271
    Abstract: A sintered ceramic particle made from a ceramic material having a true density greater than 3.5 g/cc and a composition having no more than 30 weight percent silicon oxide and at least 15 weight percent iron oxide, based on the combined weight of the oxides of aluminum, iron and silicon, is disclosed. A process that utilizes an externally applied compressive force to make a ceramic particle is also disclosed.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: October 9, 2012
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Laurie San-Miguel, Kevin R. Dickson, Tihana Fuss, Walter T. Stephens
  • Patent number: 8282890
    Abstract: A vessel comprising a bed of randomly oriented ceramic media having fluid distribution channels incorporated in the outer surface of the media is disclosed. The channels capture and redirect the fluid thereby improving distribution of the fluid in the vessel.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: October 9, 2012
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Hassan S. Niknafs, Daniel C. Sherman
  • Patent number: 7976949
    Abstract: One embodiment of the present invention relates to spherical ceramic elements, such as proppants, for maintaining permeability in subterranean formations to facilitate extraction of oil and gas therefrom. The strength of the ceramic element may be enhanced by combining materials having different coefficients of thermal expansion. Methods of making the ceramic elements are also disclosed.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: July 12, 2011
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Kevin R. Dickson, Walter T. Stephens, Tihana Fuss
  • Patent number: 7862013
    Abstract: A chemical processing apparatus that utilizes randomly oriented ceramic packing elements having at least three openings therethrough that accommodate feedstock with combustible and/or noncombustible matter that accumulates in the openings is described. The openings occupy at least 10% of the surface area on one side of the packing element.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: January 4, 2011
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Robert L. Miller, Hassan S. Niknafs
  • Patent number: 7825062
    Abstract: A carrier, which comprises non-platelet alumina and/or a bond material, has a surface area of at least 1.3 m2/g, a total pore volume and a pore size distribution such that at least 80% of the total pore volume is contained in pores with diameters in the range of from 0.1 to 10 ?m, and at least 80% of the pore volume contained in the pores with diameters in the range of from 0.1 to 10 ?m is contained in pores with diameters in the range of from 0.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: November 2, 2010
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: William H. Gerdes, Thomas Szymanski, Donald J. Remus, John R. Lockemeyer, Randall Clayton Yeates
  • Patent number: 7775507
    Abstract: The invention provides novel ceramic mass transfer packing elements with physical characteristics that maximize efficiency of mass transfer and minimize pressure drop when randomly dumped in a chemical reactor. In some embodiments, the elements may have: a ratio of surface area of the interaction zone to surface area of the flow through zone between 1:0.5 and 1:3; and the interaction zone surface area occupies between 45% and 70% of the open face surface area.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: August 17, 2010
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Hassan S. Niknafs, Robert L. Miller, Daniel C. Sherman
  • Patent number: 7708957
    Abstract: A chemical processing apparatus that utilizes a ceramic media sintered at a lower temperature than the apparatus' maximum exposure temperature is described. The media's physical and chemical properties may contribute to its thermal stability when exposed to temperatures that exceed the media's sintering temperature by at least 50° C.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: May 4, 2010
    Assignee: Saint-Gobain Ceramics & Plastics Inc.
    Inventor: John Stewart Reid
  • Patent number: 7354879
    Abstract: A chemical processing apparatus that utilizes a ceramic media sintered at a lower temperature than the apparatus' maximum exposure temperature is described. The media's physical and chemical properties may contribute to its thermal stability when exposed to temperatures that exceed the media's sintering temperature by at least 50° C.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: April 8, 2008
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventor: John Stewart Reid
  • Patent number: 7021789
    Abstract: 1. A lighting device (2) having a light housing (6) including a light source (42, 44), said light housing rotatably connected to a body, said body having a rotatable connection means (22) to allow the light housing to be adjacent said body to define a narrow space (90) accessible in a base to top direction. 2. A lighting device (2) having a light source (42, 44), a tubular lens (40, 50) surrounding said light source, a reflector (56) cooperating with an end of said tubular lens opposite to said light source. 3. A light housing (6) or a method of assembling a light housing (6), said light housing having a first side and a second side, a first side having a mounting spigot (52, 54), a second side having an aperture (62, 63), a tubular lens (48, 50) can pass through the aperture so that one end of the tubular lens is received in the mounting spigot, said aperture and said mounting spigot being in alignment.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: April 4, 2006
    Assignee: Eveready Battery Company, Inc.
    Inventors: David R. Dalton, Angelo Kotsis, John Robert Brown
  • Patent number: 7007367
    Abstract: An apparatus and process for simultaneously securing a plurality of display articles onto a hangable merchandiser are disclosed. The apparatus includes a strip shaped hangar and a detachable handle secured to the strip. The handle is used to secure the display articles to the strip and then the handle is detached from the strip. The process reduces the cost of securing display articles to the strip.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: March 7, 2006
    Assignee: Eveready Battery Company, Inc.
    Inventors: Mark A. Ferguson, Jeffrey P. Pirro
  • Patent number: 6942359
    Abstract: Various embodiments of a flashlight are provided. In one representative embodiment a flashlight includes a light source, a housing and at least two battery locations inside the housing. Each battery location inside the housing can accommodate at least one of at least two batteries, each of which can be a different size. The flashlight also includes an electro-mechanical structure that prevents a closing of an electrical circuit that electrically couples the batteries to the light source, when one of the at least two batteries in the flashlight is a different size than another.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: September 13, 2005
    Assignee: Eveready Battery Company, Inc.
    Inventors: David A. Furth, Richard H. Chapman, Scott W. Osiecki, David R. Dalton
  • Patent number: 6936079
    Abstract: A process for assembling an electrochemical cell that utilizes an electrode containment shield to prevent internal electrical short circuits that are caused by fragments of a frangible electrode coming into contact with the battery's opposing electrode. The shield, which may be secured to the current collector, is particularly useful with low volume seals that do not support the separator.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: August 30, 2005
    Assignee: Eveready Battery Company, Inc.
    Inventor: Robert M. Janmey
  • Patent number: D504970
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: May 10, 2005
    Assignee: Eveready Battery Company, Inc.
    Inventors: David R. Dalton, John R. Brown, Joseph P. Gardner, Timothy Rugendyke
  • Patent number: D504971
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: May 10, 2005
    Assignee: Eveready Battery Company, Inc.
    Inventors: David R. Dalton, John R. Brown, Joseph P. Gardner
  • Patent number: D506846
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: June 28, 2005
    Assignee: Eveready Battery Company, Inc.
    Inventors: Donwoong Kang, Scott W. Osiecki
  • Patent number: D507064
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: July 5, 2005
    Assignee: Eveready Battery Company, Inc.
    Inventors: Scott Osiecki, Robert Englert
  • Patent number: D508749
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: August 23, 2005
    Assignee: Eveready Battery Company, Inc.
    Inventors: Scott Osiecki, Robert Englert
  • Patent number: D513731
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: January 24, 2006
    Assignee: Eveready Battery Company, Inc.
    Inventors: Donwoong Kang, Scott W. Osiecki, Grahame P. Ward
  • Patent number: D518216
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: March 28, 2006
    Assignee: Eveready Battery Company, Inc.
    Inventors: Timothy Rugendyke, John R. Brown, Joseph P. Gardner
  • Patent number: D518217
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: March 28, 2006
    Assignee: Eveready Battery Company, Inc.
    Inventors: Timothy Rugendyke, John R. Brown, Joseph P. Gardner