baber/WOPTO huggingface dataset:
Patent CA-2242742-A1 (CA)
Title: Process and apparatus for the treatment of waste oils
Inventor: YU HESHUI
IPC: C10G9/00
Filed: 1997-01-24
Abstract: The present invention is directed to a process and apparatus for the reclaiming and re-refining of waste oils.    The process comprises raising a temperature of a feed mixture of fresh waste oil and a recycled non-volatile residue to a range of 400 °C to 490 °C for a time sufficient to cause pyrolysis of said heavy hydrocarbons contained in the feed mixture, but insufficient to permit substantial undesired polymerization, oxidation and dehydrogenation reactions to take place in said feed mixture; cooling the resulting pyrolized waste oil mixture to a temperature in the range of 300 °C to 425 °C, and maintaining said temperature while allowing volatile components in the pyrolyzed waste oil mixture to evaporate, leaving a non-volatile residue containing said contaminants; condensing the evaporated volatile components to form a reclaimed oil product; and mixing the non-volatile residue with fresh waste oil to form more of said feed mixture and repeating said temperature raising, cooling, evaporation and mixing steps on a continuous basis, while continuing to condense volatile components evaporated from said pyrolyzed waste oil mixture. The apparatus comprises a heating unit, a container, a condenser and pumping equipment and piping. The process and apparatus of the present invention generate #2 diesel fuel, gasoline and coke from waste oil.
Patent CA-2243267-A1 (CA)
Title: Countercurrent reactor with interstage stripping of nh3 and h2s in gas/liquid contacting zones
Inventor: GUPTA RAMESH
IPC: C10G49/00
Filed: 1998-09-01
Abstract: A reactor for reacting liquid petroleum or chemical streams wherein the liquid stream flows countercurrent to the flow of a treat gas, such as a hydrogen-containing gas. The reactor is comprised of at least one vertically disposed reaction zone, each containing a bed of catalyst, wherein each reactionzone may contain vapor bypass means, and wherein each reaction zone is immediately preceded by a non-reaction zone, and wherein each non-reaction zone contains a gas/liquid contacting zone for stripping gaseous by-products, such as NH3 and H2S, from the liquid stream.
Patent CA-2244243-A1 (CA)
Inventor: PLATT JAMES L JR
IPC: A01N25/12
Filed: 1997-12-18
Abstract: Chemically stable, insecticidally active pellets having a low moisture content and at least about 95 % active ingredient are described, as well as a method for manufacturing them. The active ingredient is selected from a class of N-hydrocarboyl phosphoroamidothioate and phosphoroamidodithioate compounds as described in the specification. The pellets generally have a moisture content of about 0.5 % by weight or less, preferably less than about 0.3 % by weight. The pellets can be produced by one of two types of processes as described in detail, including a high pressure axial extrusion process and a low pressure basket extrusion process.
Patent CA-2244482-A1 (CA)
Inventor: CAREY JACQUELINE M
IPC: A45C3/00
Filed: 1998-08-06
Abstract: An organizer for organizing one's business and personal life.    The organizer comprises a first compartment, a second compartment adjacent to the first compartment, and an organizer book contained in the  first compartment.   The  second compartment  includes  a mechanism for holding a personal activity instrument, such as a credit  card,  driver's  license,  airplane  tickets,  etc.    The organizer book includes a plurality of record members at least one of which is a personal planning record member and at least one other of which is a business planning record member.  The personal record member contains indicia specifically designed for planning a personal activity in which the personal activity instrument is to be used.  The personal activity instrument may be conveniently held in the second compartment for easy access when needed to carry out the personal activity planned on the personal record member.  The compartments  contain  zipper-type  fasteners  for  closing  the compartments.
Patent CA-2244600-A1 (CA)
Title: Production of titanium slag
Inventor: COLF JACOBUS CORNELIUS VAN DER
IPC: C22B7/04
Filed: 1998-08-07
Abstract: A process for producing titanium slag which is low in radioactivity wherein molten titanium slag, produced by smelting ilmenite in the presence of a reductant in a DC electric arc furnace, is separated from molten iron, boron in an amount which is less than 2,5% equivalent B2O3 of the slag is blended with the molten slag which thereafter is allowed to cool to form a glassy phase whichcontains the bulk of the radioactive elements of the slag before being crushed to particles below about 1mm, whereafter the radioactive elements are leached to leave a titanium slag product which is low in radioactivity.
Patent CA-2245619-A1 (CA)
Title: Multi-door electrical equipment enclosure with mechanical door interlock
Inventor: ZEITLER RONALD F
IPC: H02B1/38
Filed: 1998-08-25
Abstract: A multi-door enclosure for housing electrical equipment has a mechanical interlock device that interacts with a main primary door of the enclosure and the existing latch mechanisms of each of the remaining secondary doors to prevent such secondary doors from being opened unless the primary door is first opened.  The interlock includes a lever arm that engages and is displaced by the primary door when closed.  Such movement of the lever arm is transmitted via a mechanical linkage system to move one or more latch disabling members into disabling relation with the latch mechanisms of each of the secondary doors in order to retain the latch mechanisms in their latched positions and thereby lock the secondary doors in the closed position. Opening the secondary door allows the lever arm to return to its initial position which in turn retracts the latching members and allows unlatching and opening of the secondary doors.
Patent CA-2249785-A1 (CA)
Inventor: FOSTER ROBERT GEORGE
IPC: B64D1/16
Filed: 1998-10-02
Abstract: An amphibious water bomber float plane, wherein the water bomber plane is equipped with a pair of floats for landing and taking off on water, with wheels for use on land, and having pair of floats secured for supporting the plane on water, water tanks within the floats for accumulating water for water bombing, scoops mounted in each float for lowering and raising between lowered and raised positions, and, when in the lowered position, the scoops entering the surface of the water causing water to flow upwardly into the tanks, dump doors mounted in each float, in communication with the tanks, the dump doors being swingable between an open dumping position and a closed sealed position, and controls by which the dump doors may be operated from the plane. Also disclosed is a method of water bombing from an amphibious float plane.
Patent CA-2250447-A1 (CA)
Inventor: JOHNSON JEFFREY HORACE
IPC: G06V30/162
Filed: 1998-10-14
Abstract: To retrieve automatically machine-printed or handwritten text over a background, in a digital image with N grey levels, differential pixels values are accepted which verify simultaneously at least two inequalities; then, for each group of inequalities, a histogram of differential pixels is established; from this is deduced a threshold S greyscale value, as a function of which the differential pixels are divided into two categories; runs are determined, groups of contiguous pixels which have been previously classified into a given category; among these runs, polygons are found including a given number of connected runs; when the total number of connected runs is insufficient, the threshold S is modified and the process is repeated from the step of the division of pixels as a function of this threshold. The machine-printed or handwritten text is obtained in the form of found polygons.
Patent CA-2251198-A1 (CA)
Title: Gas turbine stationary blade
Inventor: FUKUNO HIROKI
IPC: F01D9/02
Filed: 1998-10-20
Abstract: In gas turbine second stage stationary blade, cooling air passage of inner shroud is improved so as to obtain enhanced cooling efficiency.       In inner shroud 126, there are provided leading edge passage 42 and trailing edge passage 44, both extending from blade portion and mutually separated by rib 40, and impingement plates 83, 84 having multiplicity of small holes 101.  Opening portion 68 between the blade portion and the inner shroud 126 is closed by bottom plate 150 and, together with recess portion 100 at bottom portion of the leading edge passage 42, connects to passage 188 of leading edge portion 41 via passage 90'.  Air from the trailing edge passage 44 flows into cavity 45 to be injected through the small holes 101 of the impingement plates 83, 84 for cooling of central portion of the inner shroud 126 and then is discharged as air 60 through passages 92 of the trailing edge portion 43.          Entire amount of the air from the leading edge passage 42 enters the passage 188 to be enhanced of heat transfer effect by turbulators 200 and further flows separatedly into passages 93, 94 of side edge portions for cooling therearound to be then discharged as air 61.  Air amount in the leading edge portion 41 and the side edge portions are increased and cooling effect is enhanced.
Patent CA-2253668-A1 (CA)
Inventor: DYKE PETER JOHN
IPC: H04M11/06
Filed: 1998-11-04
Abstract: To reduce the complexity, size and power dissipation associated with the deployment of xDSL-type modems in distribution points (140-142) of a telecommunications network, a transparent concentrating optical transmission scheme is interposed between an exchange (100) and a subscriber terminal (210). Specifically, xDSL-type modems (102-104 and 220-224) are employed both within the exchange (100) and, nominally, each subscriber terminal (102) of the telecommunication system, while an optical fibre supports the transmission of frequency division multiplexed broadband signals sent between the exchange (100) and the distribution points (140-142). Twisted-pairs then couple respective broadband signals received and demultiplexed at the distribution points (140-142) to appropriately addressed subscriber terminals (210), while upstream transmissions are subjected to a complementary process from the xDSL modems (220-224) in the subscriber terminals (210) to the xDSL modems (220-224) in the exchange (100).
Patent CA-2253904-A1 (CA)
Title: Targeted combination immunotherapy of cancer
Inventor: GRIFFITHS GARY L
IPC: A61K47/48
Filed: 1997-05-02
Abstract: The invention provides a method for effecting therapy of a tumor in a patient, comprising the steps of: (A) administering to the patient a first conjugate comprising a targeting moiety, a first member of a binding pair, and a first therapeutic agent, wherein the targeting moiety selectively binds to a marker substance produced by or associated with the tumor, and allowing the conjugate to localize at the tumor, thereby effecting therapy of the tumor; (B) optionally, administering to the patient a clearing composition, and allowing the clearing composition to clear non-localized first conjugate from circulation; (C) administering to the patient a second conjugate comprising a complementary member of the binding pair and a second therapeutic agent, wherein the second therapeutic agent is the same as or different from the first therapeutic agent, and allowing the second conjugate to localize at the tumor, thereby effecting therapy of the tumor.
Patent CA-2254930-A1 (CA)
Title: Composite pressure sensitive adhesive microsphere
Inventor: SILVER SPENCER F
IPC: C09J11/00
Filed: 1997-05-05
Abstract: Composite pressure sensitive adhesive microspheres are provided comprising two or more water insoluble polymers that are mixed wholly within the boundaries of polymeric microspheres. The range of monomers and polymers are chosen to tailor the properties of the composite pressure sensitive adhesive microspheres for specific performance and/or application requirements. Any polymer that can be dissolved into a solvent monomer or mixture of solvent monomers can be used to prepare the composite pressure sensitive adhesive microspheres. Pressure sensitive adhesive microspheres according to this invention can be prepared using free radical suspension polymerization.
Patent CA-2255196-A1 (CA)
Inventor: SHUEY KENNETH C
IPC: H02J13/00
Filed: 1998-12-02
Abstract: A very low cost method of driving the coil of a meter disconnect switch utilizes the 60 Hz signals from an existing power supply rectifier to generate properly phased gate drive signals to SCRS, with only one stage of isolation.
Patent CA-2256356-A1 (CA)
Title: Procede et appareil de controle de l'etat d'un modulateur de polarisation de cristaux liquides
Inventor: WAGNER RICHARD E
IPC: H04B10/61
Filed: 1997-05-27
Abstract: L'invention porte sur un segment modulateur (216, 218) de polarisation de cristaux liquides (CL) à dispositif de contrôle (220). Le dispositif de contrôle (220) comprend une source lumineuse de référence polarisée (222) placée sur une entrée du contrôleur de polarisation du CL et un détecteur de lumière polarisée placé sur une sortie du contrôleur de polarisation du CL. Si le détecteur (224) reçoit une lumière de référence correctement polarisée, une indication de l'état de commutation apparaît. Par contre, si le détecteur polarisé (224) comporte des polariseurs orthogonaux (230A, 230B) prévus pour deux détecteurs de lumière séparés (232A, 232B), il est possible de contrôler à la fois la polarisation voulue et la polarisation opposée pour déterminer si un défaut s'est ou non produit dans le segment. Si la lumière de référence s'avère présenter la polarisation opposée (au lieu ou en plus de la polarisation correcte) ou si aucune lumière n'est détectée, cela signifie que le segment (ou le contrôleur) ne fonctionne pas correctement.
Patent CA-2257949-A1 (CA)
Inventor: DOI RYOUTA
IPC: F02D41/02
Filed: 1997-06-09
Abstract: An exhaust gas purification apparatus for use in an internal combustion engine comprises an exhaust gas duct connected to the engine through which the exhaust gas containing NOx gas passes and a catalyst so disposed in the exhaust gas duct that it contacts with the exhaust gas. The catalyst chemically,adsorbs NOx under the condition that a stoichiometric amount of a gaseous oxidizing agent present in the exhaust gas is larger than that of a gaseous reducing agent present in the exhaust gas for reducing NOx, while NOx being adsorbed is catalytically reduced in the presence of the reducing agent under the condition that the stoichiometric amount of the oxidizing agent is not larger than that of the reducing agent. Thereby, NOx in the lean burn exhaust gas in the engine can be effectively made harmless.
Patent CA-2258111-A1 (CA)
Inventor: SALARIS COSIMO
IPC: B22D11/041
Filed: 1997-03-27
Abstract: The ingot mould of the invention includes a cooled copper body (4) on top of which is mounted a refractory feeder bush (9) consisting of two components: a heat insulating upper sleeve (16) and a compact refractory lower ring (17) of high mechanical strength enclosed by a crimping bush (18) which is narrower than ring (17) so that the latter projects on either side of the crimping bush. By subjecting the inner surface of the crimping bush to successive surfacing treatments which are repeated after the two surfaces have been reversed, it is possible to extend substantially the useful life of said crimping bush before replacing it.
Patent CA-2258309-A1 (CA)
Inventor: KLITGAARD PETER CHRISTIAN
IPC: A61M5/315
Filed: 1997-06-10
Abstract: A flexible piston rod for use in cylinder ampoules comprises a tape shaped body (1) which is along its length provided with supporters (2; 6; 16) projecting from at least one side of the tape. The tape (1) has a width and the supporters a length so that sides of the tape and the free ends of the supporters abut the inner wall of the ampoule (3) in at least three positions along the inner perimeter of the ampoule (3) and not all the abutment points lie on the same half of the circular cross section but are typically displaced about 120~ from each other. The piston rod is moved by a gear engaging a rack (12) on the tape either on the side not carrying supporters or at the edge of the tape on the side carrying supporters.
Patent CA-2258363-A1 (CA)
Title: Procede et composition de ciment a base de ciment et de boue de forage pour la cimentation d'un forage
Inventor: CARPENTER ROBERT
IPC: C04B24/24
Filed: 1997-06-12
Abstract: L'invention concerne un procédé et une composition à base de boue de forage/lait de ciment pour la cimentation d'un forage. La composition à base de boue de forage/laid de ciment comprend: a) un matériau cimentaire; b) une boue de forage; et c) un agent dispersant sélectionné dans le groupe constitué de polymères solubles dans l'eau comprenant de l'allyloxybenzène sulfonate ou de l'allyloxybenzène phosphonate polymérisé avec au moins un des éléments suivants: acide acrylique, acrylamides, alkylacrylamides, anhydride maléique, acide itaconique, styrolène sulfoné ou phosphoné, toluène vinylique sulfoné ou phosphoné, isobutylène sulfoné ou phosphoné, acrylamidopropane sulfonate, acrylamidopropane phosphonate, alcool vinylique, propylène et alcali sulfonés ou phosphonés, alcalinoterreux et leurs sels d'ammonium.
Patent CA-2259477-A1 (CA)
Inventor: MASON WILLIAM
IPC: A61F9/007
Filed: 1997-06-26
Abstract: Appareil servant à appliquer de la lumière laser à la rétine oculaire et comportant des moyens d'obtention d'une image rétinienne. Un écran affiche l'image rétinienne souhaitée et des moyens de réception de données reçoivent d'un technicien des données concernant un traitement à exécuter. Des moyens de génération de gabarit génèrent un gabarit de référence sur l'image rétinienne et des moyens de réception d'une position cible reçoivent des données concernant au moins un point cible auquel la lumière doit être appliquée en fonction des données de référence reçues. Des moyens de détection de la position courante de la rétine acquièrent une image courante de la rétine et des moyens d'application de lumière laser dirigent et appliquent la lumière laser à la rétine.
Patent CA-2260726-A1 (CA)
Inventor: NORDANG LARS
IPC: D21H23/70
Filed: 1999-02-04
Abstract: A drying section apparatus is disclosed for use in drying a web of paper coated with size to decrease permeability. A single tier dryer arrangement in apparatus according to the invention includes air caps disposed above the dryer cylinders so that the first drying stage for removing water from the web prior to sizing and the second drying stage for removing water introduced by the coating in the sized web can be controlled. The single tier dryer includes a plurality of dryer cylinders and vacuum rolls disposed between adjacent dryer cylinders, with a dryer felt extending around at least one of the dryer cylinders, so that both sides of the web are dried during passage of the web through the single tier dryer. At least one of the dryer cylinders is top felted for permitting downward removal of broke. An air cap is disposed above at least one of the dryer cylinders for blowing air through the felt for drying the web disposed between the dryer cylinder and the felt.
Patent CA-2261438-A1 (CA)
Title: Float apparatus for a floating dock
Inventor: ZEILINGER BRIAN
IPC: B63B35/38
Filed: 1999-02-11
Abstract: A dock system having a float including a top wall.      The top wall has a periphery and a central portion spaced from the periphery. The float also has a bottom wall and a continuous side wall connecting the top wall to the bottom wall about the periphery of the top wall.      A connection member spaced from said periphery connects the top wall to the bottom wall generally at the central portion, and a deck is connected to said float to form a floating pier or deck.
Patent CA-2261973-A1 (CA)
Title: Aqueous bonding composition
Inventor: GROOTAERT WERNER M A
IPC: C09D183/08
Filed: 1997-06-27
Abstract: An aqueous bonding composition comprising a silane compound, a water-soluble surface tension-reducing compound, water, and substantially no organic solvent, and a method of using said aqueous bonding composition. The aqueous bonding composition can be used to produce a bonded article comprising a fluoropolymer bonded to a substrate.
Patent CA-2262514-A1 (CA)
Title: Method and machine for removing of pin bones from fish fillet
Inventor: EIDE RAGNAR
IPC: A22C25/16
Filed: 1997-08-01
Abstract: A method and a machine for the removal of pin bones (14) from fish fillet (F), from which dorsal spine and preferably also ribs have already been removed. A pin bone-plucking device (18) with a rotatably driven, drum-shaped working head (18'') is used. In the circumferential surface of the latter plucking means (20) are formed. The fillet (F) is firmly fixed on a rotating freezing drum (16), and the plucking means (20) are placed at such a distance from the circumferential surface (16') of the freezing drum (16) that the plucking means (20) sweep the outwards facing side surface of the fillet (F) and grip and temporarily lock the pin bones (14) for subsequent plucking. If the processed fillets (F) have skin, they may be skinned by means of a skinning knife in a subsequent operation, while they maintain their initial position, frozen to the freezing drum (16), i.e. without any intermediate handling of the fillets (F).
Patent CA-2262866-A1 (CA)
Title: Method of treating tobacco to reduce nitrosamine content, and products produced thereby
Inventor: WILLIAMS JONNIE R
IPC: A23G4/06
Filed: 1997-08-05
Abstract: Methods of reducing the content of and preventing formation of carcinogenic nitrosamines in harvested leafy plants such as tobacco and marijuana, are disclosed. The methods are directed to subjecting the plant to microwave radiation, at appropriate times in the cure cycle. With tobacco, products suitable for human consumption, such as cigarettes, cigars, etc.. can be made in accordance with the present invention, having contents of tobacco-specific nitrosamines on a par with fresh-cut, green tobacco. In preferred embodiments, the resultant tobacco products are dried, golden-yellow leaves having almost negligible amounts of the known carcinogens NNN and NNK, in comparison to conventionally cured tobacco.
Patent CA-2265151-A1 (CA)
Title: Coupling mechanism used for mounting decorative light bulb sets on a board
Inventor: LIU CHUN MING
IPC: F21S4/10
Filed: 1999-03-10
Abstract: The present invention relates to a coupling mechanism used for mounting decorative light bulb sets on a board. The coupling mechanism consists of a mounting board with a plurality of light bulb holder bases and a pair of clasp hooks formed on the light bulb holder of each decorative light bulb set. The coupling mechanism enables a light bulb holder to be easily snapped in a light bulb holder base of the mounting board. In this way, users can arrange a plurality of decorative light bulb sets to form a planar pattern. When these decorative light bulbs are turned on, they shine to show a desired figure or image, resulting in a decorative effect.
Patent CA-2265536-A1 (CA)
Inventor: BECKERS MARTINE IRENE MARIA
IPC: C11D3/386
Filed: 1997-09-10
Abstract: The present invention relates to a liquid fabric softening composition comprising a cationic biodegradable fabric softener and an alkoxylated amino-functional polymer, whereby said combination provides an increased color care on treated fabrics but also enables the use of a higher level of polymer without being detrimental to the stability of the composition.