Patents by Inventor Thomas W. Smith

Thomas W. Smith 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: 5434030
    Abstract: A toner composition includes a resin, a charge enhancing additive, an ion binding polymer, and at least one ionic dye complexed to the ion binding polymer. The ionic dye is different from the charge enhancing additive and is stabilized and dispersed in the toner composition.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: July 18, 1995
    Assignee: Xerox Corporation
    Inventors: Thomas W. Smith, David J. Luca, Kock-Yee Law
  • Patent number: 5424160
    Abstract: A carrier composition comprised of a core with a coating thereover comprised of a composite comprised of a conductive aromatic or heteroaromatic polymer comprised of a monomer or monomers selected from the group consisting of pyrrole, indole, thiophene, thianaphthene, indene, azulene and ring pendant substitutent derivatives thereof; and a fluoropolymer host resin.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: June 13, 1995
    Assignee: Xerox Corporation
    Inventors: Thomas W. Smith, David J. Luca, Michael J. Duggan, John A. Creatura
  • Patent number: 5360862
    Abstract: A process is provided for the production of an emulsifiable polypropylene wax having a melt viscosity from 1000 to 5000 cP at 190.degree. C. This process entails reacting at a temperature below 190.degree. C. a thermally degraded polypropylene wax having a melt viscosity below 1000 cP (at 190.degree. C.) with maleic anhydride in the presence of a free radical source. Floor polish formulations containing this polypropylene wax are very clear but yet provide floor finishes that are very tough.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: November 1, 1994
    Assignee: Eastman Chemical Company
    Inventors: Thomas D. Roberts, Thomas W. Smith, Charlene A. Galvin
  • Patent number: 5344737
    Abstract: A toner composition of resin, pigment, wax, and a component of the formula ##STR1## wherein n is a number of from about 30 to about 50 and m is a number of from about 3 to about 16.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: September 6, 1994
    Assignee: Xerox Corporation
    Inventors: John S. Berkes, Bernard Grushkin, Thomas W. Smith
  • Patent number: 5314778
    Abstract: A toner composition comprised of resin particles, pigment particles, and submicron colloidal domains of an ionomeric polymer or an interpolymer complex comprising a first polymer and a second polymer, preferably, independently selected from the group consisting of an ionophoric polymer and the ionomeric polymer. The ionomeric polymer and interpolymer complex are optionally complexed to a Lewis acid, a salt, or an ion thereof.
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: May 24, 1994
    Assignee: Xerox Corporation
    Inventors: Thomas W. Smith, David J. Luca, Paul C. Julien
  • Patent number: 5290954
    Abstract: A process is provided for the production of an emulsifiable polypropylene wax having a melt viscosity from 1000 to 5000 cP at 190.degree. C. This process entails reacting at a temperature below 190.degree. C. a thermally degraded polypropylene wax having a melt viscosity below 1000 cP (at 190.degree. C.) with maleic anhydride in the presence of a free radical source. Floor polish formulations containing this polypropylene wax are very clear but yet provide floor finishes that are very tough.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: March 1, 1994
    Assignee: Eastman Kodak Company
    Inventors: Thomas D. Roberts, Thomas W. Smith, Charlene A. Galvin
  • Patent number: 5275839
    Abstract: A method for sensitizing lead salt infrared detectors includes the step of making a photomask for depositing a lead salt material on a substrate for forming a plurality of detectors in which each detector is electrically coupled in series to at least one other detector on the substrate. A lead salt material, such as lead sulfide or lead selenide, is deposited onto the substrate through the photomask to form a plurality of lead salt detectors connected in series on a substrate. A monitor is connected across a series of interconnecting detectors on the substrate and the substrate is immersed in a heated chemically inert liquid, such as a fluorocarbon liquid, for a predetermined time period to sensitize the lead salt detectors on the substrate while simultaneously monitoring the detectors across the substrate in the heated liquid. The monitor produces an average reading of the resistance for each detector on the substrate to determine when to remove the detectors from the heated liquid.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: January 4, 1994
    Assignee: Graseby Electro-Optics, Inc.
    Inventor: Thomas W. Smith
  • Patent number: 5206058
    Abstract: Disclosed is a process comprising(A) preparing an adhesion promoting coating by applying to a polypropylene substrate a chlorinated interpolymer of ethylene and carbon monoxide having an amount of carbon monoxide in the range of 2.5 to 6.8 weight percent and an amount of chlorine in the range of 19 to 26 weight percent, and(B) coating the adhesion promoting coating with a paint.
    Type: Grant
    Filed: February 26, 1992
    Date of Patent: April 27, 1993
    Assignee: Eastman Kodak Company
    Inventors: Slaton E. Fry, Allen J. Blankenship, David W. Magouyrk, Paul J. Greene, Thomas W. Smith
  • Patent number: 5166026
    Abstract: A toner composition comprised of semicrystalline copolymer resin particles with a melting point of from about 30.degree. C. to about 100.degree. C., and containing functional groups comprising hydroxy, carboxy, amino, amido, ammonium or halo, and pigment particles.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: November 24, 1992
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Stephan Drappel, Thomas W. Smith, Michael J. Levy, Richard B. Lewis, Ralph A. Mosher
  • Patent number: 5102763
    Abstract: Disclosed is a dry toner composition which comprises a resin, hydrophilic silica particles having dyes covalently bonded to the particle surfaces through silane coupling agents, and a polymer having at least one segment capable of enhancing the dispersability of the silica particles in the resin and at least one segment capable of adsorbing onto the surface of the silica particles. In one embodiment, the polymer segment capable of adsorbing onto the surface of the silica particles is ionophoric and capable of complexing with a salt, thereby incorporating a toner charge control additive into the polymer.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: April 7, 1992
    Assignee: Xerox Corporation
    Inventors: Francoise M. Winnik, David J. Luca, Thomas W. Smith
  • Patent number: 5025502
    Abstract: A glove is equipped with a mouthpiece containing an air passage. The mouthpiece allows the wearer to puff air into the space between the glove and the skin of the hand. The puffed up glove is much easier to doff and don than a conventional glove. A puff-off wetsuit glove for use in underwater activities is described in detail.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: June 25, 1991
    Inventors: Douglas W. Raymond, Thomas W. Smith
  • Patent number: 4952477
    Abstract: A toner composition comprised of resin particles selected from the group consisting of a semicrystalline polyolefin and copolymers thereof which a melting point of from about 50.degree. C. to about 100.degree. C., and pigment particles.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: August 28, 1990
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Thomas W. Smith, William M. Prest, Jr., Robert A. Nelson, Kathleen M. McGrane, Suresh K. Ahuja
  • Patent number: 4645619
    Abstract: Disclosed is an improved process for the preparation of a stable colloidal dispersion of a selenium tellurium alloy, which comprises providing a solution with a polymer therein; adding to the solution a selenium ester and a tellurium ester; and subsequently subjecting the resulting mixture to a reduction reaction by adding thereto a reducing agent whereby there is generated selenium tellurium particles of a diameter of from about 0.01 micron to about 0.3 micron in solution.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: February 24, 1987
    Assignee: Xerox Corporation
    Inventors: Santokh S. Badesha, Thomas W. Smith
  • Patent number: 4638335
    Abstract: A multi-layer optical recording member for use with a recording laser for optical recording and retrieving information thereon, as well as a method of fabricating and using said member is described. The optical recording member comprises in sequential order a structural substrate, a thermally degradable polymer layer, a light absorbing recording layer, a thermally degradable polymer dielectric layer, and a reflective layer. The substrate and the thermally degradable polymer layers are stable under ambient light and temperature conditions and substantially transparent to the recording and reading optical radiation. The combined thicknesses of the light absorbing layer and the dielectric layer are such as to provide anti-reflecting conditionsat the recording wavelength and optical contrast between marked and unmarked areas at the reading wavelength. The optical recording member may be used with a single laser source for both recording and reading.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: January 20, 1987
    Assignee: Xerox Corporation
    Inventors: Thomas W. Smith, Anthony T. Ward, David J. Luca, Gordon E. Johnson
  • Patent number: 4624701
    Abstract: A process for the preparation of halogenated chalcogens, or halogenated chalcogenide alloys which comprises providing in solution pure esters of the desired chalcogen, and subsequently subjecting a mixture of the esters and a chalcogenide halide to a coreduction reaction.
    Type: Grant
    Filed: August 15, 1985
    Date of Patent: November 25, 1986
    Assignee: Xerox Corporation
    Inventors: Santokh S. Badesha, Thomas W. Smith, Ihor W. Tarnawskyj
  • Patent number: 4618551
    Abstract: Disclosed is a polysilylene hole transporting compound for use in layered imaging members comprised of ##STR1## wherein R.sub.1,R.sub. 2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are independently selected from the group consisting of alkyl, aryl, substituted alkyl, substituted aryl, and alkoxy; and n, m, and p are numbers that represent the percentage of the monomer unit in the total polymer compound.
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: October 21, 1986
    Assignee: Xerox Corporation
    Inventors: Milan Stolka, Damodar M. Pai, Thomas W. Smith, James M. Duff, Rafik O. Loutfy
  • Patent number: 4592989
    Abstract: Disclosed is an electrostatic toner composition comprised of resin particles, pigment particles, and a complex of a dipolar molecule or salt attached to an ionophoric polymer.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: June 3, 1986
    Assignee: Xerox Corporation
    Inventors: Thomas W. Smith, David M. Teegarden, Kathleen M. McGrane, David J. Luca
  • Patent number: 4548800
    Abstract: This invention is generally directed to an improved process for the preparation of selenium of high purity which comprises reacting selenious acid, selenium oxides, or mixtures thereof, with an alcohol, and subjecting the resulting selenium ester, subsequent to purification to a reduction reaction.
    Type: Grant
    Filed: August 2, 1982
    Date of Patent: October 22, 1985
    Assignee: Xerox Corporation
    Inventors: Santokh S. Badesha, Thomas W. Smith
  • Patent number: 4496957
    Abstract: An optical recording member is prepared by coating a thin layer of a colloidal dispersion, of minute particles of certain transition metals or their oxides in a polymeric binder, onto a substrate. The optical recording member may be made to achieve anti-reflecting conditions at the marking wavelength by making the substrate reflective and by using proper thickness for the dispersion layer.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: January 29, 1985
    Assignee: Xerox Corporation
    Inventors: Thomas W. Smith, David Cheng, Anthony T. Ward
  • Patent number: 4484945
    Abstract: Disclosed is a process for the preparation of chalcogenide alloys in high purity which comprises providing a solution mixture of oxides of the desired chalcogens, and subsequently subjecting this mixture to a simultaneous coreduction reaction.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: November 27, 1984
    Assignee: Xerox Corporation
    Inventors: Santokh S. Badesha, Thomas W. Smith