Patents Represented by Law Firm Bernard, Rothwell & Brown
  • Patent number: 4969115
    Abstract: A method and apparatus for determining whether a subsequent sample is substantially identical to an initial sample in a near infrared quantitative analysis instrument. An initial sample is measured for a plurality of characteristics which include the ambient temperature of the analysis instrument at the time of reading, the temperature of the sample itself, the optical energy level of the sample, the moisture content of the sample, and the percent protein of the sample. These characteristics are stored in a computer to provide a series of comparison criteria. A subsequent sample is then measured for the same characteristics as the initial sample and these characteristics are compared to the comparison criteria to determine if the subsequent sample is substantially identical to the previous sample.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: November 6, 1990
    Assignee: Futrex Inc.
    Inventor: Robert D. Rosenthal
  • Patent number: 4967129
    Abstract: A power system stabilizer (PSS) to bring the constant in a phase lead-lag circuit of the PSS to an optimum value by having such procedures carried out in its phase lead-lag compensation circuit as to apply the ruler to lead the phase of the PSS when the period of the power fluctuation in each mode tends to decrease and to lag the phase of the PSS when conversely the period tends to increase by means of a fuzzy inference device to detect results of the periods weighted by the degrees of the tendency, to superpose the outputs obtained by application of the rule to obtain the center of gravity, and therewith finally to vary the constant in the amplification and phase lead-lag circuit of the PSS.
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: October 30, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Seiichi Tanaka
  • Patent number: 4966851
    Abstract: A process for the isolation and separation of lysozyme and avidin from egg white is carried out by:step (a) contacting egg white with a weakly acidic cation exchange resin whereby lysozyme and avidin are adsorbed on to the resin; separating the resin from the egg white and washing the resin to remove residual egg white therefrom; and contacting the washed resin with a low ionic strength eluting buffer whereby lysozyme is eluted from the resin while avidin remains adsorbed on the resin; andstep (b) repeating the complete procedure defined in step (a) for two or more times; andstep (c) finally contacting the resin containing accumulated adsorbed avidin with a high ionic strength eluting buffer whereby avidin is eluted from the resin.Lysozyme and avidin are both commercial products useful, for example, in pharmaceutical applications.
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: October 30, 1990
    Assignee: The University of British Columbia
    Inventors: Timothy Durance, Eunice Li-Chan, Shuryo Nakai
  • Patent number: 4967285
    Abstract: A method of cutting off recording paper on a facsimile apparatus is disclosed in which the recording paper wound as a roll is sequentially fed through the apparatus so that the paper is cut off by a cutter after the recording on each sheet area of the paper is performed. The method comprises a stop in which the torque of an electric motor is transmitted to a platen roller through a gear train so that the recording on the (n+1) th-sheet area of the recording paper is performed continuously after the recording on the nth-sheet area of the paper; a step in which when the boundary between the nth-sheet area and the (n+1)th-sheet area has reached the cutoff position, the recording on the (n+1)th-sheet area is temporarily stopped and the backlash of the gear train is compensated for by rotating the motor backward; a step in which the recording paper is cut off by the cutter; and a step in which the backlash of the gear train is compensated for again by rotating the motor forward.
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: October 30, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Hiroshi Tabuchi
  • Patent number: 4965337
    Abstract: The present invention relates to a wholly aromatic polyetherimide further containing sulfur containing groups in the backbone of the polyetherimide. The polyetherimide is characterized by extremely high glass transition temperatures, high chemical resistance and thermogravimetric stability.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: October 23, 1990
    Assignee: General Electric Company
    Inventors: Edward N. Peters, Dana Bookbinder, James A. Cella
  • Patent number: 4964961
    Abstract: The present invention is directed to an apparatus for electro elution of components separated by preparative electrophoresis on a gel comprising a tapered tube divided by a porous disc into an upper section which is open at the top of the tapered tube and a lower section which is closable by a removable cap. The apparatus also contains a dialysis membrane of substantially the same diameter as the removable cap and affixed to the removable cap such that the dialysis membrane is sealed against the end of the tapered tube when the removable cap encloses the lower section of the tapered tube. Following electro elution, the open upper section of the tapered tube can be sealed and the desired substance is withdrawn through the cap and dialysis membrane which encloses the lower end of the tube. An auxiliary funnel can be affixed to the open upper end of the tube to increase the capacity of the system.
    Type: Grant
    Filed: August 2, 1989
    Date of Patent: October 23, 1990
    Assignee: E-C Apparatus Corporation
    Inventors: Kathe L. Brautigam, William W. Gorman, Jr.
  • Patent number: 4964858
    Abstract: An inflatable cushion forming an orthopedic device for being affixed on the face of the diaper away from an infant's body at the groin between the thighs for supporting the thighs in an abducted position. The inflatable cushion can be affixed by attachment with adhesive strips, by insertion in a pocket, by being formed integrally, or by otherwise being attached to the diaper or a baby panties covering the diaper.
    Type: Grant
    Filed: January 4, 1989
    Date of Patent: October 23, 1990
    Assignee: Advanced Computerized Systems Medical, Ltd.
    Inventor: Michael Livny
  • Patent number: 4965133
    Abstract: A modifying agent for a conductive substrate comprises a flavin derivative. A flavin-modified electrode obtained through modification by the modifying agent is capable of reducing an electron transfer protein having a standard oxidation-reduction potential higher than, or on the positive side of, the standard oxidation-reduction potential of the flavin derivative but is incapable of oxidizing the electron transfer protein, and is therefor capable of controlling electron transport so that the electron transport takes place in only one direction. With this characteristic feature, the modified electrode is applicable to functional devices such as diodes, transistors and optical switch devices.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: October 23, 1990
    Assignee: Kozo Iizuka, Director General, Agency of Industrial Science and Technology
    Inventors: Satoshi Ueyama, Satoru Isoda
  • Patent number: 4963513
    Abstract: The present invention relates to the coproduction of a combustible gas stream usable as an energy source, a sulfur-dioxide-containing second gas stream usable as a source of oxidant in the gasification of coal, and a sulfur-dioxide-containing third gas stream usable as a feedstock for the production of sulfuric acid. The process includes heating coal in a coal gasification zone in the presence of an oxygen and sulfur dioxide-containing atmosphere under partial coal gasifying conditions to produce a carbonaceous char and a crude coal gas stream. Sulfur-containing compounds are removed from the coal gas stream and converted to elemental sulfur. The carbonaceous char is combined with gypsum to form a feed mixture. The non-gypsum portion of the feed mixture contains sufficient reducing potential to release substantially all of the sulfur in the gypsum as gaseous compounds of sulfur in a +4 or lower oxidation state.
    Type: Grant
    Filed: May 24, 1989
    Date of Patent: October 16, 1990
    Assignee: Florida Institute of Phosphate Research
    Inventor: Jerome H. Marten
  • Patent number: 4963379
    Abstract: A chocolate bar is disclosed which comprises a chocolate base, at least one first wafer sheet placed on the chocolate base and having an interconnecting web and a plurality of hollow projections extending from the wafer sheet web on the side opposite the chocolate base. The chocolate bar further includes an anhydrous creamy filling housed in the cavities of the projections and a coating of chocolate deposited on the outer surface of the wafer sheet.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: October 16, 1990
    Assignee: Ferrero S.p.A.
    Inventor: Pietro Ferrero
  • Patent number: 4962521
    Abstract: A still picture video telephone apparatus adapted to transmit and receive, through a telephone line, still picture information from a television camera or the like, during a telephone call, includes a picture memory for storing a plurality of pages of picture information consisting of a camera-taken picture memory portion which rewrites still picture information input therein delivered from the television camera at intervals of a predetermined period, a self-prepared picture memory portion which stores desired still picture information until arrival of a rewrite instruction, and an incoming picture memory portion which sequentially rewrites still picture information therein upon receipt of still picture information when its storage regions are filled up, memory region input information for setting up regions for the self-prepared picture memory portion and the incoming picture memory portion within the picture memory, and picture memory control circuit for controlling still picture information input to and ou
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: October 9, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Fumiaki Komatsu, Junichi Sakamoto, Hitoshi Fujimoto, Hiroshi Ohtsuka, Kazuyuki Saigusa, Akifumi Kabasawa, Shinya Yokodate, Kenichi Kashiwagi
  • Patent number: 4960960
    Abstract: Hydrogen is supplied first to a last hydrogenation zone, and gases recovered from the last hydrogenation zone are passed to the first hydrogenation zone of a continuous multi-zone liquid phase process for hydrogenating an organic compound to a corresponding hydrogenation product. The organic compound, with a suitable diluent or recycle hydrogenation product, flows successively through the zones beginning with the first and ending with the last hydrogenation zone to undergo hydrogenation with the hydrogenation product being recovered from the last hydrogenation zone.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: October 2, 1990
    Assignee: Davy McKee (London) Limited
    Inventors: George E. Harrison, John R. Hensman
  • Patent number: 4960708
    Abstract: A packaged single-phase reference liquid comprising a gas and liquid-impermeable sealed container and a reference liquid containing a highly diffusible gas.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: October 2, 1990
    Assignee: Baxter International Inc.
    Inventors: John M. Zowtiak, Bruce I. Mayall
  • Patent number: 4958964
    Abstract: A semirigid floating pavement formed out of masses of reinforced concrete molded pieces, disposed side by side to form as wide a surface as needed. Each piece has a regular polygon plane with a flat top surface and an inner recess connected with the surface by means of a perforation and opening at its base. This base has the surface inclined toward the geometric center. Pieces are bedded onto a layer of sand. The inner recess is occupied with a mass of sand injected through the perforation which connects with the upper part, which perforation is closed up with an elastic cap or stopper. A channel is disposed around each piece in which is housed a joint acting as union and support between adjacent pieces.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: September 25, 1990
    Inventors: Javier B. Soto, Domingo F. Llamas
  • Patent number: 4955226
    Abstract: A method and apparatus can automatically detect the presence of leaks in sealed plastic bags filled with product and gas by detecting the amount of displacement and the variation in displacement over time of a displacement transducer movable into contact with a fluffed bag, and utilizing the variation of displacement over time to detect such leaks. The variation of displacement over time is compared to the variation (or lack thereof) observed in a control bag without appreciable leaks, and a sufficient difference therebetween indicates a bag with a leak, which is thereafter rejected.
    Type: Grant
    Filed: December 26, 1984
    Date of Patent: September 11, 1990
    Assignee: Frito-Lay, Inc.
    Inventors: Dennis W. Beaty, C. Brooks Shafer
  • Patent number: 4954793
    Abstract: A filter bank constituted in such a manner that an interdigital transducer on the input side of a plurality of each of surface acoustic wave filters having different pass bands is used as a shunt element and the shunt element is connected to a series element composed of reactance elements to form a ladder-type circuit, and a circuit composed of an inductor and a capacitor connected in parallel with each other is used as one part of the series element to form a pole near the cut-off frequency, to increase an amount of attenuation of a T-type circuit near the cut-off frequency, and to largely reduce transmitted electric power of spurious components even in a surface acoustic wave filter in a section near a signal source.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: September 4, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Koichiro Misu, Shusou Wadaka, Tsutomu Nagatsuka
  • Patent number: 4953548
    Abstract: A liquid-filled sealing cuff of an airtight surgical ventilating device is protected from laser-effected damage during laser surgery by a liquid-containing barrier cuff positioned between an area of the laser surgery and the liquid-filled sealing cuff. The body of the surgical ventilating device is formed of a matte-finished flexible metal tube in the area of the laser surgery to resist damage by laser beam impact and to dispose highly unfocused light when a surgical laser beam is directed against the outer surface of the metal tube. A locking ferrule prevents disengagement of an atraumatic insertion tip of the device from the flexible metal tube.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: September 4, 1990
    Assignee: Mallinckrodt, Inc.
    Inventors: Philip V. Stoddard, Craig J. Bell, Donald R. Schneider
  • Patent number: 4954892
    Abstract: A picture signal encoding and decoding apparatus which transmits a digital picture signal by encoding, and receives and decodes an incoming encoded signal comprises a configuration in which a condition not to make a receiving buffer overflow can be controlled on the transmitting side, and a plurality of quantizers are prepared and a proper quantizing characteristic is selected and used according to the sequence of transformed coefficients and the size of a motion vector. Therefore, it is not necessary to prepare a receiving buffer of a large capacity or a high speed decoding circuit, so that the apparatus can be manufactured at a low cost and the stability of operation is improved and also a signal can be compressed efficiently owing to the realization of quantization corresponding to a statistical characteristic of an input signal.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: September 4, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kohtaro Asai, Tokumichi Murakami, Kazuhiro Matsuzaki
  • Patent number: 4952511
    Abstract: A photobioreactor for the cultivation of photosynthetic microorganisms comprises a tank, one or more light compartments extending into the tank and one or more high intensity lamps whose light is directed into the light compartments. Each light compartment has at least one transparent wall and a means for distributing light from the lamp substantially uniformly across the transparent wall.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: August 28, 1990
    Assignee: Martek Corporation
    Inventor: Richard J. Radmer
  • Patent number: 4952345
    Abstract: Uniformity of properties of spun polyamide filaments is improved by treating flake polyamide with successive nitrogen gas streams, the first having a variable temperature and water content, and the second being dry but having a variable flow rate. Viscosity of the molten polyamide from a melter for the flake is determined by measuring differential pressure across a transfer pipe. The viscosity measurement is used by automatic control apparatus to control the flow rate of the second stream, and the moisture content of a make-up stream added to the first stream. The flow rate of the make-up stream is controlled to maintain the second stream within limits, and the temperature of the first stream is controlled to maintain the flow rates of the make-up and second streams within limits.
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: August 28, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Sundar M. Rao, Richard P. Dale, Laura A. Murphy