Patents Examined by Timothy McMahon
-
Patent number: 5792420Abstract: The present invention provides an improved metal corrosion inhibitor for use in aqueous acid solutions which is relatively non-toxic and inexpensive. The corrosion inhibitor is a mixture comprised of oligomerized aromatic amines prepared by contacting the still bottoms residue produced in the distillation of quinoline from coal tar with oxygen in the presence of a catalyst.Type: GrantFiled: May 13, 1997Date of Patent: August 11, 1998Assignee: Halliburton Energy Services, Inc.Inventor: Michael M. Brezinski
-
Patent number: 5788931Abstract: An air freshener for motor vehicles, of a type inserted inside an electrical lighter of a vehicle and using current from the electrical lighter, includes a casing for holding an air freshening material of a pastille or gel form therein, the casing having a cover; a main resistor surrounded by the casing and which is electrically activated by the current to generate heat; a printed circuit board with resistors of lower voltage rating than the main resistor and connected to the main resistor; holes in the cover for entry of air; interior projections in the casing for holding the air freshening material; a buzzer placed inside the casing, activated by the current and triggered by a time mechanism corresponding to usage time; two electrical poles for receiving current from the electrical lighter; at least one wire for connecting the two electrical poles with the printed circuit board and/or main resistor; and a light which is illuminated by the current during activation of the main resistor.Type: GrantFiled: June 12, 1996Date of Patent: August 4, 1998Inventor: Jose Munoz Quintana
-
Patent number: 5788723Abstract: A process for the high-temperature gasification of possibly thermally pretreated heterogeneous wastes, in which oxygen is injected into the gasification bed with the aid of water-cooled oxygen lances. The oxygen is heated by an independent pilot flame and accelerated to speeds approaching the speed of sound. Accordingly, the oxygen lances cannot be plugged by melted charge components not susceptible to gasification because the pilot flame is driven independently of the oxygen-lance flow. A pulsing, phase-shifted impact from several oxygen lances arranged in a ring produces a circulating flow of material in the gasification zone, compensating the heterogeneity of the charge in the case of a waste gasification.Type: GrantFiled: February 13, 1997Date of Patent: August 4, 1998Assignee: Thermoselect AGInventor: Gunter H. Kiss
-
Patent number: 5785808Abstract: A heat transfer method for a polymer mixture is disclosed, comprising the steps of transporting the polymer mixture in a flow path through a heat exchange medium and restricting the flow of the polymer mixture at a predetermined location along the flow path. This method defines a zone upstream of the flow restriction device, wherein the mixture is sufficiently pressurized to prevent vaporization of volatile components of the mixture. This method also defines a zone downstream of the flow restriction device maintained at a pressure lower than that of the upstream zone, wherein the pressure is sufficiently relieved to induce partial vaporization of volatile components of the mixture.Type: GrantFiled: October 2, 1995Date of Patent: July 28, 1998Assignee: LCI CorporationInventors: John H. Litschert, II, Bruce D. Sterrett
-
Patent number: 5783146Abstract: Compositions, devices, and methods are disclosed for achieving rapid cleaning, disinfection, and sterilization in aqueous solution. A device for reducing surface tension in liquids is also disclosed. An ethoxylated aliphatic amine is disclosed as the cationic surfactant of choice, preferably with a liquid soluble germicide simultaneously present in aqueous solution to accelerate sterilization at 25.degree. room temperature. One device includes a tablet; another device includes an absorbent body, or other carriers which can carry both cationic surfactants and germicides. Another device includes an hermetically sealable envelope, which contains both the cationic surfactant and a germicide which impregnates an absorbent liner. The composition includes a germicide and a cationic surfactant. Glutaraldehyde is the preferred germicide, while bis (2-hydroxyethyl) cocoamine and polyoxyethylene (5) cocoamine are, respectively, the cationic surfactant of choice.Type: GrantFiled: September 5, 1996Date of Patent: July 21, 1998Inventor: Robert M. Williams, Jr.
-
Patent number: 5779988Abstract: Method for the protection of the internal walls of the shell of Braun type converters, transformed into axial-radial reactors with insertion of a cartridge and a cylindrical perforated wall, characterized by the fact that cooling gas is circulated (FLU) at temperatures between 250.degree. and 300.degree. C. in the airspace (I) between cartridge (C) and (P).Type: GrantFiled: February 28, 1995Date of Patent: July 14, 1998Assignees: Ammonia Casale, S.A., Umberto ZardiInventors: Umberto Zardi, Giorgio Pagani
-
Patent number: 5779992Abstract: A hydrotreating apparatus comprising (a') a fixed-bed reactor packed with a hydrotreating catalyst for hydrotreating a heavy oil and (b') a suspended-bed reactor packed with a hydrotreating catalyst for further hydrotreating the heavy oil hydrotreated in the fixed-bed reactor. According to the apparatus of the present invention, (a) feeding of a heavy oil to a fixed-bed reactor is disclosed packed with a hydrotreating catalyst to thereby effect hydrotreating of the heavy oil and (b) feeding of the heavy oil hydrotreated in the fixed-bed reactor to a suspended-bed reactor packed with a hydrotreating catalyst to thereby effect further hydrotreating of the heavy oil can be conducted, and therefore the period of hydrotreating of the heavy oil can be prolonged.Type: GrantFiled: August 15, 1996Date of Patent: July 14, 1998Assignee: Catalysts & Chemicals Industries Co., Ltd.Inventor: Hidehiro Higashi
-
Patent number: 5779989Abstract: An improved fluidized bed reactor having a reactor shell and a reaction chamber within the shell, the reaction chamber having chamber walls and a chamber bottom portion, the improvement comprising at least one baffle disposed within the reaction chamber, the baffle comprising a pair of outer refractory walls, an inner refractory wall between and contiguous with the outer refractory walls, and a metallic reinforcement member embedded within the inner refractory wall, the inner and outer walls being attached to at least the chamber bottom portion.Type: GrantFiled: November 2, 1995Date of Patent: July 14, 1998Assignee: Dorr-Oliver IncorporatedInventors: George Tomasicchio, Alfredo E. Basas
-
Patent number: 5776416Abstract: A fluidized bed reactor comprises a reaction column, gas inflow means for flowing a gas upwardly from the lower end of the reaction column, particle feed means for feeding particles to a lower part of the reaction column, and a cyclone. The cyclone includes a cyclone body having an inlet, a gas outlet and a particle drop port, and a particle discharge pipe having an upper end communicating with the particle drop port of the cyclone body. A main fluidized bed of particles fed by the particle feed means is formed at the lower part of the reaction column, and a gas, which is to be discharged from the reaction column and which is accompanied by particles, is introduced from the inlet into the cyclone body and discharged from the gas outlet of the cyclone body. The particle discharge pipe of the cyclone communicates with the lower part of the reaction column.Type: GrantFiled: November 13, 1996Date of Patent: July 7, 1998Assignee: Tokuyama CorporationInventor: Hiroyuki Oda
-
Patent number: 5776316Abstract: A liquid redistribution system for redistributing liquid descending in a packed distillation column in which liquid is distributed from one side of the column to the other side of the column and vice-versa. To this end, a plurality of parallel, spaced apart liquid distributor elements provide inlet openings for receiving the liquid as it descends and outlet openings located on the underside of the distributor elements for discharging the liquid from the inlet openings. Channels provide flow communication between the inlet and outlet openings.Type: GrantFiled: March 7, 1996Date of Patent: July 7, 1998Assignee: The BOC Group, Inc.Inventors: Richard W. Potthoff, Alan C. Burton
-
Patent number: 5776420Abstract: A method and a system is disclosed for treating a gaseous discharge stream formed from a waste in a molten metal bath. The waste is directed into a reactor containing a molten metal bath. The molten metal bath has operating conditions which are sufficient to dissociate the waste and form a gaseous discharge stream including a dissociation product. The gaseous discharge stream is cooled in a cooling section and the dissociation product is separated, as a particulate, from a gaseous component of the gaseous discharge stream. The fluid particulate stream is recirculated to the gaseous discharge stream in a reaction section of the apparatus.Type: GrantFiled: September 5, 1996Date of Patent: July 7, 1998Assignee: Molten Metal Technology, Inc.Inventor: Christopher J. Nagel
-
Patent number: 5776419Abstract: Exhaust purifying filter material which can carry a larger amount of catalyst and from which the catalyst will not easily drop off even if subjected to vibrations or temperature changes due to repeated heating and cooling at high temperatures. Catalyst is carried on alumina whiskers formed on metal fiber having a composition of Fe--Ni--Cr--Al, Fe--Cr--Al or Ni--Cr--Al or woven or unwoven fabric formed of the metal fiber. The catalyst is firmly carried by the alumina whiskers. The amount of catalyst carried is increased with the increase in surface area.Type: GrantFiled: November 9, 1995Date of Patent: July 7, 1998Assignee: Sumitomo Electric Industries, Ltd.Inventors: Tomohiko Ihara, Masayuki Ishii, Hiroshi Yoshino
-
Patent number: 5772971Abstract: A microbial decontamination system includes a chamber for housing items to be decontaminated as well as a source of one or more iodine-containing fluids that are conveyed to the chamber as necessary. The system also includes a detector element for monitoring the concentration of free iodine within the chamber. A signal representative of the free iodine concentration is conveyed to a controller element which communicates with receptacles for housing the iodine-containing fluids so that additional iodine-containing fluids may be added to maintain the free iodine concentration within the chamber at a desired level.Type: GrantFiled: July 5, 1996Date of Patent: June 30, 1998Assignee: Symbollon CorporationInventors: Joseph Murphy, John Hickey, Yongjun Duan
-
Patent number: 5772967Abstract: Apparatus for performing and measuring chemical reactions includes a reaction test apparatus having reaction wells wherein reactants are controllably mixed, and exposure apparatus which receives and positions the reaction test apparatus adjacent a photographic film. Each of the reaction wells includes at least two reaction chambers, arranged in a side by side fashion. All but the final reaction chamber have upwardly sloping sides, so that liquid placed in one reaction chamber can flow to the next reaction chamber when the apparatus is tilted. In a preferred embodiment, the reaction wells are supported in a plate that is structurally integral with the wells but separates the wells from each other. The test plate is retained in the exposure apparatus, and liquid is controllably flowed from one reaction chamber to the next by tilting the exposure apparatus.Type: GrantFiled: May 2, 1994Date of Patent: June 30, 1998Inventors: Jon C. Wannlund, Jerry W. Smith
-
Patent number: 5773299Abstract: A method and reagent for the simultaneous or independent enumeration of reticulocytes in a whole blood sample, without the need to separately incubate the sample and reagent. The reagent contains a reticulocyte staining amount of an unsymmetrical cyanine dye, from about 40 mM to about 60 mM of a buffer selected from the group consisting of imidazole, Tris and Bis-Tris and a dye stabilizing amount of a non-ionic surfactant selected from the group consisting of N, N-bis?3-D-Glucon-amidopropyl! cholamide and a polyoxypropylene-polyoxyethylene block copolymer. The reagent has a pH from about 6.8 to about 7.2 and an osmolarity adjusted to about 280 to about 310 mosm/l with a mono-, or di-, valent alkali salt selected from the group consisting of NaCl, KCl, LiCl, CaCl.sub.2, MgCl.sub.2 and ZnCl.sub.2. The method utilizes the reagent in a no incubation process that also allows for the simultaneous determination of CBC as well as reticulocyte counts and maturity indices.Type: GrantFiled: December 20, 1996Date of Patent: June 30, 1998Assignee: Abbott LaboratoriesInventors: Young Ran Kim, Johanna Kantor
-
Patent number: 5770007Abstract: The present invention refers to a device for dispensing onto a surface a transfer material provided on a carrier strip, and it comprises a supply reel rotatably accommodated in a housing and which is used for storing thereon the carrier strip together with the transfer material, and a take-up reel which is also rotatably accommodated in said housing such that it is radially displaced relative to said supply reel and which is used for receiving thereon the carrier strip from which the transfer material has been removed at least partially. The two reels have provided between them a rotary drive transmitting mechanism and a clutch means for providing a driving transmission ratio which is adapted to the respective unwinding/winding-up condition of the reels.Type: GrantFiled: May 2, 1995Date of Patent: June 23, 1998Assignee: Czewo Plast Kunststoffechnik GmbHInventors: Manuel Czech, Hermann Runge
-
Patent number: 5766548Abstract: Control of formation of heat stable amine salts and of corrosion in an amine solvent treating system is accomplished by introduction of N,N-diethylhydroxylamine catalyzed with hydroquinone into the system. The catalyzed N,N-diethylhydroxylamine is effective at the temperature ranges of amine treating systems to effectively reduce formation of heat stable amine salts and to inhibit corrosion. The catalyzed N,N-diethylhydroxylamine is effective in proportions including the range of about 0.5 to about 6 parts N,N-diethylhydroxylamine to 1 part hydroquinone.Type: GrantFiled: March 31, 1997Date of Patent: June 16, 1998Assignee: Cata Chem Inc.Inventor: John Soria
-
Patent number: 5766555Abstract: To achieve better distribution of the fluid and optimal flow of bulk products, the feed inlet floor of a mobile bed reactor comprises parallel cellular bulk feed hoppers (9A) covering the surfaces or funnel shaped bulk discharge chutes (9B), the side walls (14A and 14B) of which are provided with openings (16A and 16B) for the passage of feed fluid above which roof-shaped feed distribution elements (18A; 18B; 18C) opening downward are arranged on the inner surface of the hoppers or chutes so as to project from the said surface. For flat, parallel flow of the bulk product, it is particularly advantageous that the distribution elements are arranged so that they also lie, in the direction of flow of the product, above the outlet openings (26A and 26B) for the latter in the hoppers or chutes and therefore preferably cover the entire surface region of the opening in the form of a roof.Type: GrantFiled: March 21, 1995Date of Patent: June 16, 1998Inventor: Horst Grochowski
-
Patent number: 5762870Abstract: The structure has a core which may be a strand or braid, as well as a sheath surrounding the core and defining the exchange surface. Preferred applications are for biomedical equipment such as blood oxygenators and blood purification equipment.Type: GrantFiled: April 2, 1997Date of Patent: June 9, 1998Assignee: Sorin Biomedica Cardio S.p.A.Inventors: Franco Vallana, Stefano Rinaldi, Giampiero Porro, Massimo Fini
-
Patent number: 5762657Abstract: A pyrolysis gasifier includes a first auger (26) which moves carbon from a carbon collection tank (24) through an air lock valve (30) to a carbon holding tank (28) The gasifier includes an inner cylindrical sleeve (80) which is configured such that there is a small air gap between it and an interior wall of the gasifier (16). The air lock valve (30) includes an inlet member (96) which connects the housing to a connecting tube from the first auger (26). A plate (100) within the housing is mounted such that in a closed position, the plate is sealingly positioned against a lower edge of the inlet member (96), while in an open position, the plate is away from the inlet member, permitting carbon to move into the carbon holding tank. A fuel spreader apparatus 53 is positioned at the top portion of the gasifier. It includes a stirring rod (44) and two opposed fuel paddle assemblies (67, 69) at the lower end thereof to spread the fuel over the cross-sectional area of the gasifier.Type: GrantFiled: February 4, 1997Date of Patent: June 9, 1998Assignee: Thermal Technologies, Inc.Inventors: Leonard G. Beierle, Leroy Graff, John J. Fitzgerald