Patents Examined by Robert L. Lindsay, Jr.
  • Patent number: 4461743
    Abstract: An apparatus for injecting a mixture of pure oxygen or oxygen-enriched air (at least 25 percent oxygen) and purge water into a wet oxidation reactor operating at elevated temperature and pressure. An annular space between the oxygen carrying pipe and a second, larger pipe is filled with heat transfer resisting material, either maintained static or passed through the annular space to remove heat therefrom. The temperature of the oxygen and purge water is maintained at less than 250.degree. F., preferably less than 150.degree. F. to minimize evaporation of the purge water. Thus, backflow of organic matter into the oxygen pipe is prevented; plugging of the oxygen pipe by salts is also prevented.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: July 24, 1984
    Assignee: Sterling Drug Inc.
    Inventors: Ajit K. Chowdhury, Gerald L. Bauer, Richard W. Lehmann
  • Patent number: 4461636
    Abstract: Installation of the type according to which molten mineral, subjected to spraying with water jets, is sent onto a rotary drum, then dispersed as a shower in a closed insulating enclosure provided at its base with a system for receiving the cooled particles or pellets, includes as such drum a fluid-tight drum which is cooled by internal circulation of water in a closed circuit and provided with blades having a special profile in the shape of a scoop or chistera. Further, the receiving system includes a series of vibrating tables placed in a cascade the last table of which, the farthest from the rotary drum and receiving the contents from the upstream tables, pours all the collected dry pellets onto a hooded belt conveyor which brings the pellets to storage hoppers or silos.
    Type: Grant
    Filed: May 25, 1983
    Date of Patent: July 24, 1984
    Inventors: Francis Gagneraud, Michel Gagneraud
  • Patent number: 4460175
    Abstract: A drop target assembly for a pinball game having a series of vertical sliders each having a target at its upper end and movable between an upwardly projecting play position and a drop position, each slider having a latch for latching the same in play position. A reset device is provided on the frame for thrusting all of the sliders upwardly to set the latches with all of the targets in play position, so that when one of targets is subsequently hit by the ball rearwardly during the course of play, the latch is released resulting in dropping of the target. Each of the sliders has an associated electromagnet including a movable armature adjacent the latch and coupled to the upper end of the slider to release the latch. A remote ball-operated device on the play field has a switch which is connected by circuitry to at least one of the electromagnets so that when the remote device is actuated the electromagnet is energized for artificially dropping the associated target.
    Type: Grant
    Filed: December 17, 1981
    Date of Patent: July 17, 1984
    Assignee: Mylstar Electronics, Inc.
    Inventor: Edward P. Krynski
  • Patent number: 4459145
    Abstract: A method for making hollow glass microspheres with conducting surfaces by adding a conducting vapor to a region of the glass fabrication furnace. As droplets or particles of glass forming material pass through multiple zones of different temperature in a glass fabrication furnace, and are transformed into hollow glass microspheres, the microspheres pass through a region of conducting vapor, forming a conducting coating on the surface of the microspheres.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: July 10, 1984
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: William E. Elsholz
  • Patent number: 4455159
    Abstract: The rate at which glass optical fiber can satisfactorily be coated with a primary plastics coating by a liquid application method is enhanced by causing the fiber to enter the liquid contained in a coating vessel via a suction tube in which a partial vacuum is maintained by an air induction device. Optionally a funnel is used to deflect the exhaust away from the incoming uncoated fiber.
    Type: Grant
    Filed: September 1, 1982
    Date of Patent: June 19, 1984
    Assignee: International Standard Electric Corporation
    Inventors: John G. Lamb, Malcolm D. Mackay
  • Patent number: 4454238
    Abstract: A glass composition which can be drawn into continuous filaments at a temperature of 1050.degree. C. or below, without risk of devitrification (crystallization), comprises by weight:______________________________________ % ______________________________________ SiO.sub.2 49-55 Al.sub.2 O.sub.3 2-4 B.sub.2 O.sub.3 7-10 Na.sub.2 O 14-18 K.sub.2 O 0.5-3 CaO 8-12 ZnO 1-4.5 ZrO.sub.2 1-7.5 ______________________________________and has a 1000-poise viscosity temperature not greater than 1050.degree. C. and a liquidus temperature at least 20.degree. C. below the 1000-poise viscosity temperature.
    Type: Grant
    Filed: December 6, 1982
    Date of Patent: June 12, 1984
    Assignee: T & N Research Materials Ltd.
    Inventors: Barry C. Hobson, John Woodthorpe
  • Patent number: 4452622
    Abstract: A method is provided for producing a highly reactive, ion-leachable glass for cement compositions. The method contemplates blending together a mixture of ion-leachable, inorganic compositions, forming the blended mixtures into shaped charges, heating the shaped charges to form a homogeneous melt, and finally blowing, in a gaseous mixture, to form partially solidified thin glass fibers. The method uniquely produces glass having a degree of crystallinity of less than 1 percent by weight in crystalline form.
    Type: Grant
    Filed: March 17, 1983
    Date of Patent: June 5, 1984
    Assignee: Johnson & Johnson
    Inventor: Harold T. Smyth
  • Patent number: 4452624
    Abstract: A method for making an airtight seal between a pair of insulator elements, uch as glass plates, without destroying any fine structure etched in the insulator elements. A thin metal film is deposited on one of the elements to be sealed and then placed in intimate contact with the other element to be sealed. The elements are then heated to a temperature well below their softening point, but high enough to significantly enhance the ion mobility in the insulator. A voltage is applied across the interface and the resulting anodic reaction consumes the film at the interface while producing a strong hermetic bond between the insulator elements.
    Type: Grant
    Filed: December 21, 1982
    Date of Patent: June 5, 1984
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Henry Wohltjen, John F. Giuliani
  • Patent number: 4451116
    Abstract: There is disclosed a fiber optic waveguide which is particularly suited for infrared radiation transmission at extended wavelengths. The core of the waveguide is fabricated from heavy ionic compounds selected from metal halides in order to achieve such extended infrared transparency. While it is impossible to prepare these materials into optical fibers using conventional fiber drawing techniques, the present invention teaches how such materials may be prepared into optical fibers using an extrusion process at elevated temperatures and high pressures.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: May 29, 1984
    Assignee: Hughes Aircraft Company
    Inventors: Douglas A. Pinnow, Anthony L. Gentile, Arlie G. Standlee, Arthur J. Timper
  • Patent number: 4451276
    Abstract: Glass fibers for insulation uses are produced by means of a centrifugal spinner which introduces glass streams into an annular attenuating blast adjacent the periperhy of the spinner. An improved product quality and/or production rate as well as prolonged spinner life are obtained by selection and utilization of a novel combination of structural and operating parameters characterized in particular by a spinner diameter and peripheral speed substantially greater than conventionally employed. The present technique further provides reduced turbulence in the receiving chamber and hence an improved distribution and orientation of the fibers on the collecting conveyor.
    Type: Grant
    Filed: August 18, 1982
    Date of Patent: May 29, 1984
    Inventors: Marie-Pierre Barthe, Jean A. Battigelli, Francois Bouquet
  • Patent number: 4447402
    Abstract: The disclosed invention pertains to an autoclave apparatus for receiving parts to be bonded or cured which includes a removable cover on the end of a pressure vessel having radiant heat means that directs heat directly onto the surface of a product to effect a bonding or curing temperature without substantially heating the pressure vessel and its parts.
    Type: Grant
    Filed: May 27, 1982
    Date of Patent: May 8, 1984
    Assignee: Devine Manufacturing Company
    Inventor: G. Robert Cox
  • Patent number: 4447251
    Abstract: A sonic levitation apparatus (A) is disclosed which includes a sonic transducer (14) which generates acoustical energy responsive to the level of an electrical amplifier (16). A duct (B) communicates with an acoustical chamber (18) to deliver an oscillatory motion of air to a plenum section (C) which contains a collimated hole structure (D) having a plurality of parallel orifices (10). The collimated hole structure converts the motion of the air to a pulsed, unidirectional stream providing enough force to levitate a material specimen (S).
    Type: Grant
    Filed: May 12, 1983
    Date of Patent: May 8, 1984
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Stanley A. Dunn, Alan R. Pomplun, Elmer G. Paquette, Edwin C. Ethridge, Jerry. L. Johnson
  • Patent number: 4447249
    Abstract: Method and apparatus are disclosed for recovering blowing wool from an air stream by introducing the stream out aa drum rotating in a sealed shroud, the speed of rotating be adjusted in response to the pressure differential across the surface of the drum.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: May 8, 1984
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: David M. Kopena
  • Patent number: 4447248
    Abstract: A method of making an orificed discharge wall for supplying a plurality of streams of molten inorganic material to be attenuated into filaments comprising inserting elements in apertures in a member; sealing said elements and member within a coating adapted to isostatically transmit pressure to said assembly; applying isostatic pressure to the hermetically sealed elements and member to mechanically seal the elements to the member; and heating the mechanically sealed elements and member to fuse the elements to the member to prevent the unwanted passage of molten glass between said elements and said member, said elements having an orifice to permit the passage of molten glass therethrough to establish said streams.
    Type: Grant
    Filed: July 15, 1982
    Date of Patent: May 8, 1984
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Mohinder S. Bhatti
  • Patent number: 4445919
    Abstract: Disclosed are a method and apparatus for delivering a solvent in the liquid state to a surface to be cleaned. The volume of the solvent and the time interval during which it is applied to the surface are selected so that the solvent reaches the surface in the liquid state. In a preferred embodiment, the solvent is water which is sprayed at selected time intervals onto the lower surface of the distributor plate supporting a fluidized bed of glass batch material for preheating.
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: May 1, 1984
    Assignee: Thermo Electron Corporation
    Inventors: William E. Cole, Drew P. O'Connell, James L. Griffith
  • Patent number: 4445920
    Abstract: A metal-to-glass-to-metal seal that includes a chemical bond between the ss and metal as well as a mechanical seal is obtained by using an oxide layer which joins the glass and metal. A glass tube or glass powder with a coefficient of expansion which approximates the metal's coefficient of expansion is fitted between a pin and sleeve combination. Parts are then heated in a controlled dry hydrogen atmosphere to create a bond between the metal and glass.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: May 1, 1984
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Rex L. Smith
  • Patent number: 4446111
    Abstract: A tubular container is traversed axially by a gas tube the interior of which is continued beyond the end enclosure of the container. The gas tube is provided with apertures filled with metal wool and closed by a compacted ceramic wool plug. The interior of the container is compartmentized by a plurality of bulk head like annular partitions each having a cylindrical inner flange and a cylindrical outer flange, whereby the inner flanges sit tightly on the gas tube and the outer flanges bear tightly against the inside wall of the tubular container. A single vessel may be traversed by heat exchange tubes, or a bundle of such vessels may be immersed in heat exchange fluid.
    Type: Grant
    Filed: June 25, 1982
    Date of Patent: May 1, 1984
    Assignee: Mannesmann AG
    Inventors: Clemens Halene, Karl-Ludwig Strack, Ernst Lange, Franz-Josef Henrichs
  • Patent number: 4444596
    Abstract: A fully automated method and apparatus for cleaning and disinfecting blood dialyzers for reuse having multiple stations simultaneously capable of cleaning a plurality of dialyzers. The dialyzer, the station cleaning the dialyzer, and the patient are identified and the identifications are stored in memory. A predetermined sequence of cleaning procedures tailored to the type of dialyzer to be cleaned are provided. The cleaning procedures are automatically machined sequenced, and the sequence is selectively controlled in response to automatic test procedures measuring indicia of dialyzer reusability. The tests performed on the dialyzer include a blood presence test, a pressure leakage test, and an ultrafiltration rate test. If it is determined that the dialyzer is not reusable, it is either cleaned further to make it reusable or machine sequencing of subsequent cleaning procedures is inhibited.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: April 24, 1984
    Inventors: Norman Gortz, Andrew S. Huson, Robert M. MacIntyre
  • Patent number: 4444597
    Abstract: A fully automated method and apparatus for cleaning and disinfecting blood dialyzers for reuse. An identification is assigned to the particular dialyzer being cleaned and is stored in machine memory. The number of times the dialyzer identification has been stored is automatically counted and the result is indicated at the time of cleaning. A predetermined sequence of cleaning procedures is provided. The cleaning procedures are automatically machine sequenced. If the dialyzer identification has not been stored before cleaning, the automatic machine sequencing of cleaning steps is inhibited.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: April 24, 1984
    Inventors: Norman Gortz, Andrew S. Huson, Robert M. MacIntyre
  • Patent number: 4441903
    Abstract: A method of making an orificed discharge wall for supplying a plurality of streams of molten glass to be attenuated into filaments comprising inserting elements in apertures in a member; sealing said elements and member within a water soluble glass coating capable of isostatically transmitting pressure to said member and elements; hot isostatically pressing to the sealed elements and member to intimately bond the elements to the member; forming an orifice in said elements to permit the passage of molten glass therethrough to establish said streams.
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: April 10, 1984
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Mohinder S. Bhatti