Patents by Inventor George B. Martin

George B. Martin 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).

  • Conductive urethane roller
    Publication number: 20020077402
    Abstract: An electrically conductive or semi-conductive polymeric material including a metal salt dissolved in a polymer. The metal salt is complexed with the polymer, which is what provides the material with its conductive properties. The materials have a resistivity of between 105 and 1012 ohms-cm.
    Type: Application
    Filed: December 11, 2001
    Publication date: June 20, 2002
    Applicant: Mearthane Products Corporation, a Rhode Island corporation
    Inventors: Albert C. Chiang, John A. Roderick, Marcelino A. Martins, George B. Martins
  • Electrically conductive and semi-conductive polymers
    Patent number: 6361484
    Abstract: A roller includes a metal core, a cylinder including polyurethane, and a conductive adhesive between the metal core and the cylinder. The polyurethane includes a solid solution of a transition metal halide salt and includes less than 5% of salt by weight. The transition metal halide salt provides the polyurethane with a uniform conductivity and a uniform resistivity of between 1012 ohm-cm and 105 ohms-cms.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: March 26, 2002
    Assignee: Mearthane Products Corporation
    Inventors: Wen-Pin Chen, Albert C. Chiang, John A. Roderick, Marcelino A. Martins, George B. Martins
  • Electrically conductive and semi-conductive polymers
    Patent number: 6063499
    Abstract: An electrically conductive or semi-conductive polymeric material including a metal salt dissolved in a polymer. The metal salt is completed with the polymer, which is what provides the material with its conductive properties. The materials have a resistivity of between 10.sup.5 and 10.sup.12 ohms-cm.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: May 16, 2000
    Assignee: Mearthane Products Corp.
    Inventors: Albert C. Chiang, John A. Roderick, George B. Martins, Marcelino A. Martins, Wen-Pin Chen
  • Reducing pollutant emissions from a spreader-stoker-fired furnace by stoichiometric control
    Patent number: 4592289
    Abstract: Methods and apparatus for reducing pollutant emissions, and in particular, for reducing NO.sub.x and particulate emissions, from spreader-stoker-fired furnaces. A combustible material is introduced into the spreader-stoker-fired furnace and combusted while the stoichiometric ratio of oxygen to combustible material in different regions of the furnace is carefully controlled. Control of the stoichiometric ratio is accomplished by controlling the amount of air injected into different regions of the furnace and by controlling the amount of smaller particles of combustible material or fines introduced into the furnace.
    Type: Grant
    Filed: October 18, 1983
    Date of Patent: June 3, 1986
    Assignee: The United States of America as represented by the Administrator of the Environmental Protection Agency
    Inventors: David W. Pershing, George B. Martin, James M. Munro
  • Reducing pollutant emissions by fines removal
    Patent number: 4485747
    Abstract: A method and apparatus for reducing pollutant emissions, and in particular, for reducing NO.sub.x and particulate emissions, from a spreader-stoker-fired furnace and from a fluidized bed combustor. A combustible material of various sized particles is obtained and those smaller particles which would normally combust during the suspension phase of the spreader-stoker-fired furnace or fluidized bed combustor are separated from the larger particles. The larger particles of combustible material are then introduced into the spreader-stoker-fired furnace or fluidized bed combustor and combusted to produce heat.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: December 4, 1984
    Assignee: The United States of America as represented by the Environmental Protection Agency
    Inventors: David W. Pershing, George B. Martin, James M. Munro