Patents Examined by Joseph P. Carrier
  • Patent number: 4550082
    Abstract: A process is provided for the detection and qualitative and quantitive differentiation of naturally deuterated molecules.This process consists in (a) preparing a standard by mixing a commercially available hydrocarbonic product with its artifically deuterated analogue, (b) introducing this standard into the measuring cell of the RMN analysis apparatus; (c) adding the product to be analyzed to the cell and (d) introducing the cell into the RMN (D) apparatus and recording the spectrum of the deuterium which is compared with the RMN (D) spectra of products of known geographical origin and from known chemical and/or biochemical sources, made beforehand with the same standard.
    Type: Grant
    Filed: December 1, 1982
    Date of Patent: October 29, 1985
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Gerard J. Martin, Maryvonne L. Martin
  • Patent number: 4539182
    Abstract: Apparatus is disclosed for aligning and simultaneously removing excess fluid from test devices. The apparatus comprises carrier means designed to support a test device used for the determination of constituents in fluid. The apparatus further comprises blotter means supported and guided by the carrier means, said blotter means being capable of moving along the carrier means and contacting the test device along one of the blotter surfaces. The surface of the blotter means which contacts the test device has characteristics to facilitate the removal of excess fluid present on the test device upon contact of the blotter with the test device.
    Type: Grant
    Filed: April 8, 1983
    Date of Patent: September 3, 1985
    Assignee: Miles Laboratories, Inc.
    Inventors: Leighton C. Johnson, James S. King, Jr.
  • Patent number: 4534820
    Abstract: A thin film of a metal of which eutectic or compound is produced together with a semiconductor which is to be grown in its crystalline form is deposited on an amorphous (quartz glass) substrate. The thin film is patterned with a periodic pattern of a polygon having cross angles of multiples of about, then the resulting substrate is heated at a temperature higher than the eutectic temperature of the metal and the semiconductor, and the semiconductor is deposited on the thin film under such heating condition, so that a crystalline film of the semiconductor is precipitated on the substrate. Such crystalline film is grown on a planar substrate at a low temperature of about eutectic temperature.
    Type: Grant
    Filed: October 15, 1982
    Date of Patent: August 13, 1985
    Assignee: Nippon Telegraph & Telephone Public Corporation
    Inventors: Hidefumi Mori, Masahiro Ikeda
  • Patent number: 4534939
    Abstract: A gas flow cartridge includes a tube-like member which defines a reaction chamber in which a pool of liquid is subjected to an analytical test. A coating of debubbling agent is applied to an area of the tube-like member above the reaction chamber. The debubbling agent collapses bubbles of noncoagulated fluid but allows bubbles of coagulated fluid to continue an upward movement above the area where the coating is applied. Coagulation is detected by sensing the coagulated bubbles moving upward in the tube-like member. A quantity of activator agent is initially confined with the reaction chamber, preferably within a structure defined by a segment of paper-like material formed into an activator retaining form. The paper-like material unrolls or unfolds during the analytical test.
    Type: Grant
    Filed: October 15, 1982
    Date of Patent: August 13, 1985
    Assignee: Hemotec, Inc.
    Inventors: Leland B. Smith, Jacqueline J. Jackson
  • Patent number: 4533519
    Abstract: A gas flow cartridge in which to conduct a coagulation-related test uses an elongated pin member movably positioned within a communication opening which separates a reagent chamber from a reaction chamber. A first portion of the pin member has an operative configuration for sealing the communication opening when the first portion is positioned in the communication opening. A second longitudinally displaced portion of the pin member opens the communication opening to further communication therethrough upon longitudinal movement of the pin member. At the commencement of an analytical test, a plug member is moved upwardly to contact the pin member and move the first portion out of the communication opening and the second portion into the communication opening. The upward movement of the lower plug member forces the contents of the reagent chamber through the opened communication opening and into the reaction chamber.
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: August 6, 1985
    Assignee: HemoTec, Inc.
    Inventors: Robert F. Baugh, Walter J. Braun, Daniel Cooper
  • Patent number: 4529703
    Abstract: Changes in the flow-rates of each one of a plurality of fluid streams which pass from respective conduits (13) to a common conduit (12) are monitored by taking a representative sample of fluid from a sampling point (16) of the common conduit, determining the change in composition of at least key components of the sample relative to a preceding sample obtained in the same manner, and computing from the change in composition the composition of the fluid stream whose flow-rate has changed, so that the fluid stream can be identified by reference to a library or database of fluid stream compositions. When the fluid streams are gases (e.g. gases to be flared at an oil refinery or chemical process plant), each sample may be analyzed by a gas chromatograph (18) at predetermined intervals and the fluid stream whose flow-rate has changed may be identified automatically by comparison with a database or library (22) of fluid streams. The thus identified fluid stream may be recorded and/displayed (19).
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: July 16, 1985
    Assignee: Exxon Research and Engineering Co.
    Inventors: Peter M. Girling, Edward L. Lisi
  • Patent number: 4521376
    Abstract: An indicator capable of determining whether the concentration of a disinfectant/sterilant solution of glutaraldehyde exceeds a predetermined value comprising an indicator medium impregnated with a sulfite compound and an amino acid or an ammonium salt.
    Type: Grant
    Filed: June 13, 1983
    Date of Patent: June 4, 1985
    Assignee: Info-Chem Inc.
    Inventors: Robert J. Witonsky, Raymond P. Larsson
  • Patent number: 4519806
    Abstract: A method for enhancing the recovery of dense soda ash from Na.sub.2 SO.sub.4 - and NaCl-containing aqueous sodium carbonate solutions by first co-crystallizing anhydrous sodium carbonate and burkeite and next introducing the co-crystallized solids to an aqueous medium at elevated temperature to dissolve the burkeite and cause reversion of the anhydrous sodium carbonate solids to crystalline sodium carbonate monohydrate, which is then separated from the dissolved sulfate and recovered as product.
    Type: Grant
    Filed: November 26, 1982
    Date of Patent: May 28, 1985
    Assignee: Intermountain Research & Development Corp.
    Inventors: William C. Copenhafer, Michael L. Pinsky
  • Patent number: 4520108
    Abstract: A continuous flow analyzer of the type which introduces continuously a carrier liquid into a single tubular conduit to form a stable main carrier stream and injects predetermined volumes of reagent liquid and sample liquid in series into the main carrier stream. The analyzer reduces the consumption of the reagent and can form a stable continuous flow.
    Type: Grant
    Filed: November 18, 1982
    Date of Patent: May 28, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Kasumi Yoshida, Hideo Uchiki, Tadafumi Kuroishi
  • Patent number: 4518565
    Abstract: Apparatus for accurately positioning and retaining multiple, individual reagent test devices in a holder. The holder consists of a base member and a top member in which the top member contains openings of at least the same number and dimension as the reagent pads appearing on the test devices. The holder permits the practical utilization of multiple, individual dip-and-read test devices in automated instrumentation.
    Type: Grant
    Filed: June 6, 1983
    Date of Patent: May 21, 1985
    Assignee: Miles Laboratories, Inc.
    Inventors: David L. Boger, Jerry T. Pugh, Jack Zuidema
  • Patent number: 4517161
    Abstract: A system for sensing and annunciating the presence at any one of a plurality of locations of accumulations of potentially hazardous gaseous and vapor mixtures prior to their reaching a lower explosive limit thereof. The system has particular applicability to aircraft, and has a number of advantageous features such as adjustable annunciator set points which are settable between relatively wide lower explosive level limits, compensation in the sensor circuitry for temperature variations, built in diagnostic and test features, and a circuit design wherein multiple sensors at multiple locations are operable independently of each other.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: May 14, 1985
    Assignee: Grumman Aerospace Corp.
    Inventors: Anthony N. Gravina, Murray Keitel, Harvey Weiss, Joseph N. Wiley, Edmund G. Charland, Jr.
  • Patent number: 4514250
    Abstract: Strain-free mounting and uniform heating of deposition substrates are achieved by coating the backside of the substrate such as a GaAs substrate with a reflective layer. A reflective environment formed, for example, by tantalum foils allows reflections between the reflective surface of the substrate and the reflective surface of the environment. These multiple reflections, in turn, produce uniform heating of the substrate.
    Type: Grant
    Filed: October 18, 1982
    Date of Patent: April 30, 1985
    Assignee: AT&T Bell Laboratories
    Inventor: James C. Hwang
  • Patent number: 4514362
    Abstract: A mixing chamber designed for ready disassembly is described in which a generally spherical-shaped outer container encloses an inner sphere. Entry and exit openings are provided on opposite sides of the outer sphere, so that breath specimens pass through the chamber between the outer surface of the inner sphere and the inner surface of the outer sphere and undergo thorough mixing with low back pressure over a wide flow range. The interior volume can be increased by using a hollow inner sphere with an opening through the wall thereof to permit the inner sphere to fill with breath specimen also.
    Type: Grant
    Filed: October 28, 1982
    Date of Patent: April 30, 1985
    Inventors: Frank L. Buchanan, Jr., Bob B. Buchanan
  • Patent number: 4506455
    Abstract: The equipment comprises in a lyophilization autoclave an auxiliary inspection door formed in the lower region of the lyophilization chamber main door and effective to allow full view of, and access to, the product carrying plate pack at the bottom of the chamber, and a substantially carriage formed loading platform provided at the inspection door effective to support thereon trays of the product to be lyophilized and guided and positioned in such a way as to remain at a constant height level substantially corresponding to the height level of the uppermost plate in the lower pack.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: March 26, 1985
    Assignee: Edwards Alto Vuoto S.p.A.
    Inventor: Gianrico Rossi
  • Patent number: 4503012
    Abstract: Liquid-transfer equipment as for dispensing liquid reagents for chemical assays, which provides time-controlled metering of the quantity of liquid dispensed even though the liquid supply reservoir is not pressurized.
    Type: Grant
    Filed: April 19, 1983
    Date of Patent: March 5, 1985
    Assignee: American Monitor Corporation
    Inventor: Maurice Starr
  • Patent number: 4501719
    Abstract: A tray having a plurality of wells bored or formed therein of predetermined volume for use in a freeze drying process is disclosed. The wells contain a solution of biologicals of predetermined concentration. The tray is thermally configured to maximize freezing efficiency during the lypholization or freeze-drying process. A pledget product is formed by the freeze drying process, the pledget adapted to be used in a single dosage of a predetermined unit value. The pledget can be stored for extended periods of time in a syringe and then be readily utilized in heparinizing an aspirated blood sample.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: February 26, 1985
    Assignee: Marquest Medical Products, Inc.
    Inventor: Charles D. Williams
  • Patent number: 4495150
    Abstract: A device for handling and washing beads. The device is attachable to a test tube rack and includes a frame, a containing slide, and a capture slide. By manipulating the slides in various combinations of positions the beads may be added to, removed from, or separately washed apart from test tubes in the rack. Complete and easy washing of the beads may thus be accomplished.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: January 22, 1985
    Assignee: Beckman Instruments, Inc.
    Inventors: William E. Cook, Morton A. Vodian, Otto Haunold
  • Patent number: 4495292
    Abstract: A dye adsorption procedure for determining clay type and amount in subterranean formation. The procedure can be carried out at a well-site, providing rapid, accurate information for treatment of the well penetrating the formation.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: January 22, 1985
    Assignee: Conoco Inc.
    Inventors: Robert M. Siebert, Richard W. Lahann
  • Patent number: 4493815
    Abstract: A biochemical test plate assembly is disclosed for use in both filter assays and fluid retention applications. The assembly comprises an upper template with a plurality of discrete apertures, a continuous microporous film underlying the upper template, a gasket underlying the microporous film with apertures matching those of the upper template, a lower template underlying the gasket with a similar array of apertures matching those of both the upper template and the gasket, each aperture terminating at its upper end in a flat boss, and a base plate having a central recess to define an enclosed chamber when the base plate and lower template are in contact, the base plate being designed to form an air-tight seal between it and the lower template.
    Type: Grant
    Filed: July 28, 1983
    Date of Patent: January 15, 1985
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: George G. Fernwood, Samuel Burd
  • Patent number: 4492674
    Abstract: An automated apparatus for the solvent separation of a coal liquefaction product stream that operates continuously and unattended and eliminates potential errors resulting from subjectivity and the aging of the sample during analysis. In use of the apparatus, metered amounts of one or more solvents are passed sequentially through a filter containing the sample under the direction of a microprocessor control means. The mixture in the filter is agitated by means of ultrasonic cavitation for a timed period and the filtrate is collected. The filtrate of each solvent extraction is collected individually and the residue on the filter element is collected to complete the extraction process.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: January 8, 1985
    Assignee: International Coal Refining Company
    Inventor: Frank K. Schweighardt