Patents by Inventor R. Roberts

R. Roberts 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: 4962996
    Abstract: A protected fiber optic waveguide comprising:(I) a core;(II) a cladding disposed on, around, and in contact with the exterior surface of the core; and(III) a buffer coating disposed on, around, and in contact with the exterior surface of the cladding, the buffer coating comprising a polysiloxane material comprising:(a) a polydimethylsiloxane and(b) a copolysiloxane comprising(i) a repeat unit selected from the group consisting of methylphenylsiloxane and diphenylsiloxane and(ii) a dimethylsiloxane repeat unit,the molar ratio of units (i) to units (ii) being between about 10:90 and about 80:20 if unit (i) is methylphenylsiloxane and between about 5:95 and about 50:50 if unit (i) is diphenylsiloxane;the weight ratio of polydimethylsiloxane (a) to copolysiloxane (b) being between about 5:95 and about 85:15.
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: October 16, 1990
    Assignee: Raychem Corporation
    Inventors: Enrique Cuellar, Stephen F. Powell, Daniel R. Roberts, Pravin L. Soni
  • Patent number: 4950587
    Abstract: Dye polymers are disclosed that J-aggregate in solution and when adsorbed to silver halide. These polymers comprise polymer repeat units having covalently bonded thereto cyanine dye units comprising two benzimidazole nuclei, in an amount sufficient to J-aggregate.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: August 21, 1990
    Assignee: Eastman Kodak Company
    Inventors: Michael R. Roberts, Derrick C. Tabor, Paul B. Gilman
  • Patent number: 4948843
    Abstract: Dye-containing polymers wherein the dyes are organic in nature are incorporated into glasses produced by a sol-gel technique. The glasses may be inorganic or organic-modified metal oxide heteropolycondensates. The dye-containing polymers are covalently bonded to the glass through a linking group. The products of this invention can be used to make optically clear colored films which can be employed in the imaging, optical, solar heat energy and related arts.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: August 14, 1990
    Assignee: Eastman Kodak Company
    Inventors: Michael R. Roberts, Bradley K. Coltrain, Sharon M. Melpolder
  • Patent number: 4938409
    Abstract: Pieces of metal are joined with silver material in a two-stage heating process. In one application, a brazed porous coating of metal particles on a metal substrate of a device is formed by interposing a silver material between the substrate and the particles, and placing the particles onto the substrate. The device is heated to a first temperature slightly below the melting point of the silver material, then briefly heated to a second temperature above 1100.degree. C. to rapidly melt the silver material to wet the particles and substrate and to generate alloying among the silver material, the particles, and the substrate. The device is allowed to cool to solidify the alloy and unite the particles and substrate to form a porous coating on the device. Also disclosed are a prosthetic device having a metal shaft for insertion into a bone canal, and a porous coating of metal particles brazed to the metal shaft by a silver material.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: July 3, 1990
    Assignee: Nuclear Metals, Inc.
    Inventor: Peter R. Roberts
  • Patent number: 4911849
    Abstract: A pump driven by air only is disclosed for providing simultaneous aeration and flow at right angles to the rising air. The pump produces in a shallow tank particle-suspending turbulence which is particularly useful for growth of marine organisms in a sun-exposed tank confined shallow brine solution. The pump is preferably installed in a rectangular tank divided by a baffle between the two tank side walls. The baffle extends parallel to the major axes of the rectangle and stops short of both tank end walls. The fluid is pumped around this baffle in an oval flow pattern. On the shallow bottom of the tank on both sides of the baffle, there is a repeating foil shaped bottom with a manifold for discharging air. The foils of the bottom are generated at right angles to the baffle and oriented from leading edge to trailing edge in the direction of intended fluid rotation around the baffle in the tank. Air is pumped and discharged from the manifold in a rising curtain.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: March 27, 1990
    Assignees: William Kreysler & Associates, Inc., Ocean Genetics, Inc.
    Inventors: Serge Labesque, Benjamin R. Roberts
  • Patent number: 4903394
    Abstract: A method of making a cornice board assembly in which the assembly has a face board, a dust board, and a pair of side boards made of expanded plastic foam material. The boards are joined together by means of a water based cement, with their edges in alignment, and the assembly is mounted on support brackets by means of thumbtacks.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: February 27, 1990
    Inventor: Beverly R. Roberts
  • Patent number: 4896256
    Abstract: A plurality of data processor components are distributed along a plurality of intracommunication bus systems, each intracommunication bus system having an address bus and each being assigned a unique set of addresses, with at least one of the components associated with each of the intracommunication bus systems including an address signal generator for generating address signals over the address bus of the associated intracommunication bus system. An intercommunication bus system is utilized in combination with a plurality of link interface units, with each link interface unit connected between the intercommunication bus system and a corresponding one of the intracommunicaton bus systems, for carrying out communication of information over the intercommunication bus system between first and second of the intracommunication bus systems, in response to the address signals on the address bus of the corresponding one of the intercommunication bus systems. A related method is also provided.
    Type: Grant
    Filed: May 14, 1986
    Date of Patent: January 23, 1990
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Barry R. Roberts
  • Patent number: 4884178
    Abstract: An indirect lighting fixture for use with a series of parallel-connected lamp assemblies that consists of a mounting member of pre-selected length having a base and opposite light-directing side panels, and an insert strip for retention within the mounting member to support the series of lamp assemblies while still allowing individual lamp replacement.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: November 28, 1989
    Inventor: James R. Roberts
  • Patent number: 4883749
    Abstract: A toilet training device for rewarding the toilet user when excrement enters or is placed in an excrement container by the toilet user. The toilet training device includes an excrement container having an entrance area and a plurality of infrared light-emitting diodes are sequentially triggered and sequentially emit infrared light substantially intersecting the entrance area. The infrared light is detected at the other end of the entrance area by a infrared light detector that generates an electrical signal in response to detected infrared light. A width pulse counter is connected to the detector and generates a first signal in response to a narrow electrical signal and a second signal in response to a wide electrical signal. The first and second signals are responsive to liquid or solid excrement deposition and generate, through control logic, one of a sight or sound signals or both for rewarding the user of the toilet training device.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: November 28, 1989
    Assignee: Pee Patch, Inc.
    Inventors: Freddie R. Roberts, Robert W. Lancette
  • Patent number: 4824478
    Abstract: A method and apparatus for producing fine metal powder. The method includes the steps of forming a centrifugally maintained annulus of a liquified gas quench medium, forming molten metal drops within the eye of the annulus, urging the drops into the quench medium to solidify the drops, and boiling away the quench medium to leave behind clean, unentrained metal powder. The apparatus includes a drum for containing a liquified gas quench medium, means for adding liquified gas to the inside of the drum, and means for rotating the drum to form an annulus of quench medium. The apparatus further includes means for forming molten metal to be made into powder, and means disposed along the longitudinal axis of the drum and within the eye of the annulus for creating molten metal drops. The molten metal drops are then urged into the quench medium to solidify them into a powder, and the quench medium is boiled away to leave behind clean, unentrained metal powder.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: April 25, 1989
    Assignee: Nuclear Metals, Inc.
    Inventors: Peter R. Roberts, James J. Airey, James E. Blout, Joseph J. Airey
  • Patent number: 4813965
    Abstract: Pieces of metal are joined with silver material in a two-stage heating process. In one application, a brazed porous coating of metal particles on a metal substrate of a device is formed by interposing a silver material between the substrate and the particles, and placing the particles onto the substrate. The device is heated to a first temperature slightly below the melting point of the silver material, then briefly heated to a second temperature above 1100.degree. C. to rapidly melt the silver material to wet the particles and substrate and to generate alloying among the silver material, the particles, and the substrate. The device is allowed to cool to solidify the alloy and unite the particles and substrate to form a porous coating on the device. Also disclosed are a prosthetic device having a metal shaft for insertion into a bone canal, and a porous coating of metal particles brazed to the metal shaft by a silver material.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: March 21, 1989
    Assignee: Nuclear Metals, Inc.
    Inventor: Peter R. Roberts
  • Patent number: 4814054
    Abstract: Producing one-side zinc electroplated strip having enhanced phosphating characteristics. Prior to electroplating, the non-electroplated side of the steel strip is cathodically pickled. Cathodic pickling minimizes staining and etching to the non-electroplated strip surface by the zinc electrolyte during electroplating of the opposite strip surface.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: March 21, 1989
    Assignee: Armco Inc.
    Inventors: Timothy R. Roberts, David M. Smith, Alan F. Gibson, Douglas J. Robbins
  • Patent number: 4808278
    Abstract: Producing one-side zinc electroplated strip having enhanced phosphating characteristics. Prior to electroplating, the non-electroplated side of the steel strip is cathodically pickled. Cathodic pickling minimizes staining and etching to the non-electroplated strip surface by the zinc electrolyte during electroplating of the opposite strip surface.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: February 28, 1989
    Assignee: Armco Inc.
    Inventors: Timothy R. Roberts, David M. Smith, Alan F. Gibson, Douglas J. Robbins
  • Patent number: 4806112
    Abstract: A safety adaptor for a male electrical connector housing having at least one male terminal is provided. A body member having a space therein of a configuration to receive the electrical connector housing while operatively supporting a cantilevering of the male terminal from the body member is utilized. A cover member can be flexibly linked to the body member for locking the safety adaptor to the electrical connector housing. A pair of parallel prongs can extend from the body member and can be positioned for limiting the size of a complementary female connector capable of operatively receiving the male terminal member.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: February 21, 1989
    Assignee: Tronomed, Inc.
    Inventors: Richard R. Roberts, Robert J. Frank, Philip H. Booker, III, Rodney A. Hemner
  • Patent number: 4796203
    Abstract: An interface, between a display monitor and a source of image information for display as pixels at display locations of the monitor, the interface comprising: a monitor input terminal for receipt of image information for display on the monitor; a refresh memory for storing image information at memory locations corresponding to the display locations of the monitor; a device for sequentially reading the image information from the memory locations of the refresh memory to the monitor input terminal for display at the corresponding display locations of the monitor; a device for storing new image information for one of the memory locations of the refresh memory; and a device for replacing sequential reading of the image information from said refresh memory at the one of the memory locations with: (i) reading of new image information from the new information store to the monitor input terminal for display of the new image information at the discrete display location of the monitor corresponding to the one of the me
    Type: Grant
    Filed: August 26, 1986
    Date of Patent: January 3, 1989
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Barry R. Roberts
  • Patent number: 4794549
    Abstract: An apparatus for measuring insecticide activity. A chamber holds a plural of insects and a quantity of the insecticide to be tested. An exit is formed in the chamber so that insects escaping from the chamber pass through a detector to generate a signal. The signals are compared to other signals generated by the other insects passing the detector to determine the repellency of the insecticides.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: December 27, 1988
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Stephen A. Van Albert, Jaime M. Lee, Donald R. Roberts
  • Patent number: 4792926
    Abstract: A high speed memory system for 100% bandwidth use with a control bus bearing contiguous sequentially intermixed data read and data write signals including a first buffer for reading data from a storage means into the data bus and a second buffer for writing data from the data bus into the storage means and a memory control sensitive to the order of received write requests and read requests signals to avoid any simultaneous utilization of the data bus and storage means in accordance with a prearranged schedule of preferential utilization of the data bus and storage means. The subject invention and related method further contemplates the employment of a plurality of input/output ports which are responsive to data read and/or data write request signals on the control bus for reading data from and/or writing data into the data bus in synchronism with the utilization of the first and second buffers.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: December 20, 1988
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Barry R. Roberts
  • Patent number: 4735252
    Abstract: An apparatus for manufacturing solidified metallic forms from levitated molten metal including a levitation conduit having an interior surface for accommodating the metal to be levitated, and a device for introducing the metal to the levitation conduit. Induction coils induce a moving magnetic field in the levitation conduit to levitate the metal upwardly through the conduit, and to maintain the outer surface of the levitated metal while molten out of pressured contact with the interior surface of the levitation conduit. The molten metal output is provided to a chamber in which a device re-forms the molten metal output and solidifies it.
    Type: Grant
    Filed: January 16, 1986
    Date of Patent: April 5, 1988
    Assignee: Nuclear Metals, Inc.
    Inventor: Peter R. Roberts
  • Patent number: D305346
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: January 2, 1990
    Inventor: John R. Roberts
  • Patent number: D307253
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: April 17, 1990
    Inventors: Lee R. Roberts, Steve Kearbey