baber/WOPTO huggingface dataset:
Patent CA-2062945-C (CA)
Title: Method and apparatus for contacting solid particles and fluid
Inventor: HOLMES PHILIP
IPC: B01J8/18
Filed: 1990-07-11
Granted: 2002-04-02
Abstract: A method and apparatus are described for contacting solid particles and fluid. A liquid is sprayed as liquid droplets from the discharge tip of a nozzle (50) into hot solid particles passing upwardly; in a vertical pipe (23). A venturi is formed in the pipe, and the venturi has an enhance portion which is up-wardly convergent to the throat and an exit portion which is up-wardly divergent from the throat. The tip of the nozzle (50) is so located relative to the venturi that liquid droplets commence va-porization, due to heat transfer from the hot solid particles, no further upstream (relative to the direction of movement of solid particles up the pipe (23)) then the throat of the venturi thereby resulting in a high degree of turbulence which causes good mix-ing of particles and vapour downstream of the venturi throat.      The particles-vapour mixture leaving the exit portion of the ven-turf is will mixed and particles are substantially uniformly mixed with vapour in radial planes of the pipe (23) downstream of the venturi. The energy of the droplets entering the pipe (23) from the nozzle (30) is shared with particles upstream of the throat and accelerates them to higher velocities in the pipe (23).      The method and apparatus may be employed for mixing-a hy-drocarbon feed with hot active craking catalyst particles in a ca-talytic cracking unit or process to reduce yields of light gas and coke and to increase yields of more valuable hydrocarbon pro-ducts.
Patent CA-2067634-C (CA)
Title: Food compartment for refrigerators
Inventor: SWINDELL THOMAS R
IPC: F25D23/02
Filed: 1992-04-30
Granted: 1994-07-26
Abstract: A  food  storage  compartment  for  refrigerators includes a housing, a food support tray, and a cover pivoted on the housing.  The tray is movable from a storage position to an access position.  The cover and housing cooperate to enclose the tray and any food stored thereon when the tray is  in the storage position.   Cam means are provided to automatically open the cover when the tray is moved to an access position.  Return of the tray to the storage position or return of the cover to its closed position automatically returns the tray and cover to the storage condition.
Patent CA-2072278-C (CA)
Title: Centrifugal flotation separator
Inventor: JONES RAYMOND
IPC: B03D1/14
Filed: 1992-07-02
Granted: 1996-12-10
Abstract: A highly versatile fluids and particulate separator that can be used in a centrifugal mode or centrifugal with gas flotation mode without the use of rotating apparatus within the cell. A pump and recirculation system provide the means for centrifugal force and gas flotation. A buoyant self adjusting discharge assembly with a vortex of fluids surrounding it provide the exit path for separated light fluids and light particles. In oil and water separation the buoyant assembly allows self discharge of the oil and can be used with high oil to water ratios at high volume. Oil spill cleanup is possible. Conversely gas flotation may be used for low volume separating applications.
Patent CA-2073442-C (CA)
Title: Electrical recloser having external mounting arrangement for electronics assembly
Inventor: EPPINGER DAVID P
IPC: H01H71/12
Filed: 1990-12-21
Granted: 1996-05-14
Abstract: An electrical recloser apparatus includes a tank (10) having bottom (18), top (22) and side walls (16) which define an interior, sealed space (14), and a current in-terrupter (44) disposed within the sealed space (14) and including a pair or relatively movable contacts (46, 48) which are movable between a closed, current-carrying po-sition and an open, current-interrupting position. A control assembly (30) is pro-vided for electronically controlling the opening and closing of the contacts (46, 48) the control assembly (30) initiating operation of the contact moving means (58) to move the contacts (46, 48) to the open position in response to a fault current sensed by a sensing means (66), and initiating operation of the contact moving means (58) to move the contacts (46, 48) to the closed position after each one of a predeter-mined number of opening operations. The control assembly (30) is mounted on the bottom wall (18) of the tank (10) exterior of the sealed space (14)
Patent CA-2073554-C (CA)
Title: Water-soluble composition for sustained-release
Inventor: IGARI YASUTAKA
IPC: A61K47/36
Filed: 1992-07-09
Granted: 2003-06-10
Abstract: A water-soluble composition which comprises (a) a pharmacologically active polypeptide, except erythropoietin, secreted by an animal body or its derivative or a chemically synthesized pharmacologically active substance, (b) a water-soluble species of hyaluronic acid or its nontoxic salt and (c) a water-soluble protein injectable into body fluids without showing any substantial pharmacological activity brings about a prolonged action in vivo of a pharmacologically active substance. In addition, the composition can be administered using a small-gauge needle and thereby contributes to relieving pain in patients.
Patent CA-2073625-C (CA)
Title: Process and apparatus for melting metals while reducing losses due to oxidation
Inventor: DEWING ERNEST WILLIAM
IPC: C25C3/06
Filed: 1992-07-10
Granted: 1998-02-03
Abstract: A process and apparatus for melting metals while reducing losses due to oxidation.  The process involves melting the metal in the presence of a molten metal salt electrolyte while electrolyzing metal oxide contained in the salt electrolyte to convert the oxide to elemental metal.  The process requires an electrolyte which contains at least 25% by weight, and more preferably 100% by weight, of metal fluoride and which, for the metal being melted, has a composition which remains substantially unchanged during the electrolysis process. The fluoride improves oxide solubility in the electrolyte, making it possible to increase current densities without producing anode effects.  The stable composition makes it possible to use the electrolyte for prolonged periods without change.  The apparatus consists of a single vessel having an interior volume divided at least into a melting zone and an electrolysis zone by a heat-resistant partition which allows the electrolyte to be recirculated between those zones.
Patent CA-2073746-C (CA)
Title: Process for the hydrogenation of chloromethanes
Inventor: DAFINGER WILLI
IPC: C07C17/00
Filed: 1992-07-13
Granted: 1996-04-30
Abstract: A process is provided for the hydrogenation of chloromethanes of the formula CHnClm, where n = 0 to 3 and m = 4-n, with hydrogen at a temperature of 150 to 250°C and under an absolute pressure of 1 to 10 bar, by means of a supported catalyst comprising an activated charcoal support with a BET surface-area of more than 500 m2/g, 0.5 to 20% by weight of copper in elemental or chemically bonded form and 0.01 to 1.0% by weight of rhodium or palladium in elemental or chemically bonded form, and with 0.1 to 10.0% by weight of a water-soluble phosphonium halide.
Patent CA-2074452-C (CA)
Title: Method and apparatus for use in installing a fire in a fireplace in connection with a flue liner
Inventor: WHITEHOUSE DONALD
IPC: F24B1/18
Filed: 1992-07-22
Granted: 2001-10-23
Abstract: The present invention relates to a method and apparatus for use in installing a gas fire in a fireplace. The apparatus comprises an adaptor member in the form of a planar plate from which a flue spigot projects upwardly, the flue spigot in use, being connected with a flue liner. The planar plate has a rearward end section which is interengageable with a rearward part of the fire whereby the planar plate can subsequently be pivoted to a position wherein a front section of the planar plate can be secured to the fire. Said rearward end section and said front section of the planar plate are thus secured to the fire, holding the planar adaptor member flat against the upper surface of the fire with the flue spigot aligned with a flue passage in the fire.
Patent CA-2076043-C (CA)
Title: Solar roof collector
Inventor: NELSON RICHARD
IPC: F24S90/00
Filed: 1991-02-14
Granted: 2000-12-05
Abstract: A solar roof collector (20) comprising a plate collector (72) whith a plurality of transparent conduits to channel a thin film of water from an insulated reservoir (58) in order to increase the temperature of water therein as a result of heat absorption in the plate collector (72). An evaporative chiller (74) including transparent air ducts in which air is circulated receives in the air ducts pre-heated water from the insulated reservoir (58), distributed therein preferably under the form of a thin film. Some water in the air ducts is vaporized and the vapour saturated air is passed through a vortex condensor (68), precipitating water which generates thermal energy. The thermal energy may be used to drive a gas turbine (62) or another type of energy conversion device.
Patent CA-2076288-C (CA)
Title: Microphone and loudspeaker system
Inventor: WEHNER RAYMOND
IPC: H04R5/02
Filed: 1992-08-18
Granted: 2001-01-30
Abstract: A sound receiving and sound reproduction apparatus includes a microphone and loud speaker. The microphone has a cylindrical transducer housing with a centre section to and two end sections. The centre section has elliptical end faces that converge mirror-symmetrically downwardly and towards the front of the microphone. The end sections are solid blocks that are spaced from the centre section and have similarly oriented end faces. In the loudspeaker, there are three components, a center unit with center and end sections spaced slightly along a common axis and two end components spaced to opposite ends of the centre unit . In each case, the speakers radiate through elliptical gaps that converge upwardly to a centre plane of the loudspeaker unit. Aperiodic chambers are connected to each of the units of the loudspeaker.
Patent CA-2079996-C (CA)
Title: Method and devices for decoring castings
Inventor: MASSIN MARCEL
IPC: B22D29/00
Filed: 1992-02-04
Granted: 2000-04-25
Abstract: PCT No. PCT/FR92/00095 Sec. 371 Date Nov. 12, 1992 Sec. 102(e) Date Nov. 12, 1992 PCT Filed Feb. 4, 1992 PCT Pub. No. WO92/13603 PCT Pub. Date Aug. 20, 1992.Sand cores are broken up and removed from castings, particularly from cylinder heads from internal combustion engines. A pneumatic hammer is applied to the casting while the casting is held against a low pressure cylinder. The casting is subjected to horizontal oscillation by a receiver actuated by a rod and a double eccentric rotatably driven by a geared motor.
Patent CA-2086308-C (CA)
Title: Novel carboxylate compounds, liquid crystal materials, liquid crystal compositions and liquid crystal element
Inventor: TATSUKI YUUICHIROU
IPC: C09K19/32
Filed: 1992-12-24
Granted: 2000-12-05
Abstract: There is provided a carboxylic acid compound represented by the following formulae (I) to (IV):      a liquid crystal material consisting of the carboxylic acid ester compound, a liquid crystal composition comprising the carboxylic acid ester compound, and a liquid crystal element using the carboxylic acid ester compound. There can be obtained advantages such as low operating temperature, high speed switching, very small electric power consumption, and high-stable contrast.
Patent CA-2086454-C (CA)
Title: Process for the production of chlorine dioxide
Inventor: WINTERS JOHN R
IPC: C25B1/26
Filed: 1992-12-30
Granted: 1999-12-21
Abstract: A process for the production of chlorine dioxide by reacting at least one of chloric acid and an alkali metal chlorate, and hydrogen peroxide as the reducing agent in such proportions that chlorine dioxide is produced in a reaction medium. A mixture comprising chlorine dioxide and oxygen is withdrawn from the reaction medium. Urea and/or one or more phosphonic acid based complexing agents are added to the reaction medium. The stabilizer is added in an amount of 0.01 - 5 weight % and serves to increase the reaction rate.
Patent CA-2086813-C (CA)
Title: Automatic brewer
Inventor: BUNN ARTHUR H
IPC: A47J31/40
Filed: 1993-01-06
Granted: 1997-01-07
Abstract: An automatic beverage brewing apparatus (20) having a brew chamber assembly (24) with a brew chamber (45), an inlet (43), an outlet (41), and a controllable water distribution system (30) coupled to the brew chamber (45) for controllably introducing brew water and flush water to the brew chamber (45).  A filter assembly (52) is disposed in the brew chamber (45) and an opening is formed through the filter assembly (52) for communicating with the brew chamber outlet (41).  The water distribution system (30) includes a flush water dispenser positioned centrally in the brew chamber (45).     A  spool (58) is disposed in the brew chamber (45) and is operatively associated with a device (28) for controllably moving the spool (58) in axial and rotary directions.  The spool (58) includes a head (122), a base (125), and a necked portion (127) extending between the head (122) and the base (125).  The dimensions of the head (122), base (125) and necked portion (127) allow the filter assembly (52) to be installed and removed over the head (122) and base (125).  The spool (58) is disposed in the brew chamber (45) with the head (122) controllably movable in the inlet (43) and the base (125) controllably movable in the outlet (41) for controllably opening and plugging the inlet (43) and outlet (41).  A port (176) is coupled to the flush water dispenser and extends through the exterior surface of the spool (58).     A discharge line (551 from the brew chamber (45) has a controllable discharge valve (55a) to direct flow from the brew chamber (45) through a dispensing line (55b), a waste line (55c), or to prevent flow through either line (55b,55c). Water may be controllably accumulated in the brew chamber (45) by controlling the discharge valve (55) to prevent flow through either line (55b,55c).  The discharge valve (55a) blocks the discharge line (55) to retain water in the brew chamber (45) to float spent brewing substance (53a) off of filter material (164) in the filter assembly (S2).
Patent CA-2089399-C (CA)
Title: Roller door
Inventor: HUBER JOHANN
IPC: E06B9/08
Filed: 1993-02-12
Granted: 1996-08-06
Abstract: A roller door has one or more door sections that can move horizontally towards each other and which can be rolled onto take-up rollers at the side of the door opening and are guided in guide rails above the door opening.  In order to permit rapid closing and opening of the door and at the same time avoid any tilting of the two roller door sections, the door halves are each moved by a drive unit that acts on a guide element, one end of which is hinged to the guide rail on the forward edge of the door section, the second end of which is hinged above or at the side of the door opening.
Patent CA-2090126-C (CA)
Title: Methods for the production of proteins with a desired function
Inventor: SCHRADER JOHN W
IPC: C07K16/28
Filed: 1991-08-02
Granted: 2002-10-22
Abstract: The present invention provides a method for producing proteins with a desired function, generally comprising the steps of (a) providing a population of antibody-forming cells suspected of containing at least one cell capable of producing an antibody exhibiting a desired function; (b) suspending the population of antibody-forming cells in a medium the medium having an indi-cator system incorporated therein, the indicator system also being capable of indicating the presence and location of a cell which forms antibodies exhibiting the desired function; (c) identifying a cell forming an antibody exhibiting the desired function; (d) isolating the identified antibody-forming cell from the medium; (e) determining the amino acid sequence of the variable region or a portion thereof which confers the desired function of the antibody produced by the isolated antibody-forming cell; and (f) syn-thesizing a protein with a desired function, the protein containing the amino acid sequence of the variable region or portion there-of which confers the desired function.
Patent CA-2096605-C (CA)
Inventor: HAYDEN ALFRED S
IPC: C22B3/00
Filed: 1993-05-19
Granted: 1998-07-28
Abstract: Refractory sulfidic silver ore which is not amenable to cyanide leaching is formed into an aqueous slurry and oxidized at elevated temperature, usually about 150 to 250°C, in the presence of an oxidizing agent, usually oxygen, and in the presence of about 30 to about 160 g/L zinc.  Zinc present in the above range results in increased extractability of silver from the oxidized residue by cyanide leaching.
Patent CA-2097159-C (CA)
Inventor: CRAUN GARY PIERCE
IPC: C08G59/06
Filed: 1993-05-27
Granted: 2000-02-22
Abstract: Coating campositions containing aqueous dispersion of higher molecular weight epoxy resin are produced by advancing the molecular weight of an aqueous dispersion of a low molecular weight epoxy resin having a number average molecular weight between about 360 and 2 000. The water dispersed low molecular weight epoxy resins are advanced in molecular weight by coreaction with a diphenol at temperatures above about 105°C and at pressures above about 34 475 N/m2 over atmospheric (5 psig) to produce the aqueous dispersed high molecular weight epoxy resin. The aqueous dispersed high molecular weight epoxy resin can be further copolymerized with ethylenic monomers, if desired, to produce an acrylic epoxy emulsion binder useful in protective coatings.
Patent CA-2099771-C (CA)
Inventor: LOPEZ-BERESTEIN GABRIEL
IPC: A61P31/04
Filed: 1992-01-10
Granted: 2002-04-23
Abstract: A method is disclosed for preparing a stable preliposomal powder which, when reconstituted with water or saline solution, forms a suspension of liposomes containing a polyene drug, such as nystatin. The method involves the steps of combining at least one phospholipid with a first organic solvent to form a first solution, adding a clarifying amount of water to the first solution, combining a polyene with a second organic solvent to form a second solution, combining the first and second solutions to produce a substantially clear combined solution, and then removing the organic solvents, leaving a powder.
Patent CA-2103837-C (CA)
Title: Novel method of producing 7-(substituted)-9-[(substituted glycyl)amido]-6-demethyl-6-deoxytetracyclines
Inventor: SUM PHAIK-ENG
IPC: C07C/
Filed: 1993-08-11
Granted: 2004-10-05
Abstract: The invention provides a novel method for producing compounds of the formula I:   (see formula I) wherein X and R are defined in the specifications. The invention also provides a method for making intermediates useful to produce the compounds of formula I.      Utilizing a common intermediate, the novel method efficiently produces compounds of the formula I.
Patent CA-2106400-C (CA)
Inventor: SIKES C STEVEN
IPC: C09K23/30
Filed: 1991-10-22
Granted: 1998-04-21
Abstract: Des acides polyaminés des formules (I); poly (X)n poly (Y)m et (II). Dans la formule (I), chaque X indépendamment est de l'acide aspartique, de l'acide glutamique, de la phosphosérine, de la phosphohomosérine, de la phosphotyrosine, ou de la phosphothréonine, chaque Y indépendamment est de l'alanine, de la leucine, de l'isoleucine, de la valine, de la glycine ou autre résidus d'acides aminés non polaires, n est 2 à 60, m est 2 à 60, et n + m est > 5, et où poly (X)n peut contenir jusqu'à 10 % des résidus Y et poly (Y)m peut contenir jusqu'à 10 % des résidus X et des sels de ceux-ci; et dans la formule (II): poly (X')a poly (Y')b chaque X' indépendamment est de l'aspartate, du glutamate, de la glutamine, de l'asparagine, ou des dérivés anioniques de ces acides aminés, ou de la phosphosérine, chaque Y' indépendamment est un acide aminé phosphorylé comme la phosphosérine, la phosphohomosérine, la phosphotyrosine, la phosphothréonine, la phosphoglutamine, la phosphoasparagine ou des mélanges de ces résidus, a est de 2 à 150, b est de 1 à 3, et a + b est > 5, et des sels de ces peptides; sont efficaces comme agents dispersants pour les minéraux dans des milieux aqueux et pour stabiliser les suspensions aqueuses des minéraux.
Patent CA-2106964-C (CA)
Title: Appareil servant a deposer sur un receptacle des quantites definies d'aliments semi-solides, et methode d'utilisation connexe
Inventor: DEMARS JIMMY A
IPC: A21C11/18
Filed: 1992-04-15
Granted: 1998-11-10
Abstract: Appareil (10) servant à déposer un produit alimentaire semi-solide dans une zone fixe (68) définie par un contenant (69) et comprenant un mécanisme (12) permettant de déposer ce produit alimentaire. Ce mécanisme (12) comprend un dispositif d'extrusion (22) doté d'un orifice (30) par lequel le produit alimentaire semi-solide peut entrer dans le dispositif (22). Un mécanisme à pression (36) couplé à un mécanisme d'entraînement (12) permet d'évacuer le produit alimentaire semi-solide du dispositif d'extrusion (22), par un orifice de sortie (40). Un robinet (52) situé à l'orifice de sortie (40) contrôle l'écoulement du produit alimentaire semi-solide extrudé. Une lame d'air (56) adjacente au robinet d'arrêt (52) interrompt la distribution continue du produit alimentaire en pièces semi-solides. Ces pièces sont déposées sur le réceptacle (69) qui est situé sur une balance (70). Un module de réglage (74) est relié à la balance (70) et au robinet d'arrêt (52) pour régler le fonctionnement du mécanisme effectuant le dépôt (12).
Patent CA-2109232-C (CA)
Inventor: THOMEY HENRY W
IPC: F16H7/12
Filed: 1993-10-26
Granted: 1996-12-10
Abstract: A spring bias tensioner of the eccentric type with a fixed cam ring and rotatable cam ring activated by a torsion spring wherein the cam rings generate an axially force to engage radial friction sliding surfaces to affect damping as a pivot arm of the tensioner is moved.
Patent CA-2112902-C (CA)
Title: Triple-effect absorption refrigeration system with double-condenser coupling
Inventor: BIERMANN WENDELL J
IPC: F25B15/00
Filed: 1992-08-27
Granted: 1998-01-06
Abstract: A triple-effect absorption refrigeration system is provided with a double-condenser coupling (22) and a parallel or series circuit for feeding the refrigerant-containing absorbent solution through the high (14), medium (16) and low (18) temperature generators utilized in the triple-effect system. The high temperature condenser (134) receiving vaporous refrigerant from the high temperature generator (14) is double coupled to both the medium temperature generator (16) and the low temperature generator (18) to enhance the internal recovery of heat within the system and thereby increase the thermal efficiency thereof.
Patent CA-2119120-C (CA)
Title: Abrasion resistant printing inks
Inventor: KRISHNAN RAMASAMY
IPC: C09D11/02
Filed: 1992-11-10
Granted: 2004-06-22
Abstract: Printing inks comprising a pigment and an aqueous or non-aqueous solvent (or a mixture of such solvents) have reduced abrasiveness towards printing surfaces (e.g. gravure printing cylinders) by incorporation in the ink of an alkoxylated dibasic phosphate ester and at least one alkali metal salt of a diaikylsuifosuccinic ester.
Patent CA-2126583-C (CA)
Inventor: HAKALA HARRI
IPC: B66B11/00
Filed: 1994-06-23
Granted: 1998-10-13
Abstract: A rotating elevator motor provided with a traction sheave  is  placed  in the  counterweight  of  an  elevator suspended with ropes.   A gear system is not necessary because the structure and placement of the motor allow the use of a motor having a large diameter and a high torque. As  the  length  of  the motor  still  remains small, the motor/counterweight of the invention can be accommodated in the space normally reserved for a counterweight in the elevator shaft.  The motor shaft lies in the counterweight substantially midway between the guide rails and the number of ropes is equal on both sides of the plane going through the centre lines of the guide rails.