baber/WOPTO huggingface dataset:
Patent CA-2313644-A1 (CA)
Title: Catalyst based on palladium, cadmium, alkali metal and lanthanoids and process for preparing vinyl acetate
Inventor: HERZOG BERNHARD
IPC: B01J23/60
Filed: 1998-12-02
Abstract: The invention relates to a catalyst which contains palladium and/or compounds thereof, cadmium compounds, alkali metal compounds and at least one lanthanoid metal. The invention also relates to the utilization of the catalyst in order to produce vinyl acetate from acetic acid, ethylene and oxygen or gases containing oxygen.
Patent CA-2314058-A1 (CA)
Title: Method of pipe welding
Inventor: STAVA ELLIOTT K
IPC: B23K35/30
Filed: 2000-07-18
Abstract: A method of welding the ends of two metal workpieces at the open root between the spaced ends, said method comprising: (a) selecting a welding wire containing phosphorous, sulfur, and carbon; (b) maintaining the sulfur at a given percentage level of the selected wire; (c) maintaining the phosphorous at a given percentage level of the selected wire; (d) advancing the welding wire at a given wire feed rate toward the open rot to weld the ends together by at least partially filing the open root in a first weld pass; (e) creating a welding current with a controlled waveform, the waveform including a succession of welding cycles each having a short circuit portion and a plasma arc portion; (f) moving the welding wire along the open root as the welding current is passed through the wire to melt the wire and transfer the melted wire to the ends in said open root.
Patent CA-2314393-A1 (CA)
Title: Water-decomposable fibrous sheet of high resistance to surface friction, and method for producing it
Inventor: TANIO TOSHIYUKI
IPC: D04H1/46
Filed: 2000-07-24
Abstract: Provided is a water-decomposable fibrous sheet including fibers containing at least 3 % by mass of fibrillated rayon. The fibril lated rayon has a degree of beating of at most 700 cc and has primary fibers of a predetermined fiber length and microfibers extending from the primary fibers. In the fibrous sheet, the microfibers are entangled with at least either of other microfibers and other fibers therein, and the surface friction resistance of the fibrous sheet in dry, measured according to the abrasion resistance test method of JIS P-8136, is at least three rubbing cycles.
Patent CA-2316409-A1 (CA)
Title: Method for decontamination of low level polyhalogenated aromatic contaminated fluid and simultaneous destruction of high level polyhalogenated aromatics
Inventor: SIM BLAIR F
IPC: A62D101/22
Filed: 2000-08-18
Abstract: Methods are provided for the dehalogenation of halogenated aromatics whereby an inert solvent, an alkali dispersion and high level contaminated material is placed in a vessel, and a low level contaminated inert fluid is then added as a coolant to maintain the temperature below the flash point during the reaction. The low level contaminated fluid is also decontaminated. Typically, the alkali by-product is then neutralized with water. Also taught is the use of water contaminated inert fluids as coolants for the reaction.
Patent CA-2316585-A1 (CA)
Inventor: FOXCROFT RONALD
IPC: A44C5/20
Filed: 2000-08-23
Abstract: A releasable connector for attaching two ends of a lanyard. The connector has a first component for coupling with one of the lanyard ends and a second component for coupling with the other of the lanyard ends. The first and second components are releasably attachable to each other such that a sufficient force imposed on the lanyard will cause the components to detach from each other.
Patent CA-2320122-A1 (CA)
Title: Treatment planning method and apparatus for radiation therapy
Inventor: SURRIDGE MICHAEL
IPC: G06F17/18
Filed: 1999-02-09
Abstract: A radiation modelling apparatus comprises: a storage means (350, 360) containing details of material properties of at least one medium (100, 105, 110) which may undergo irradiation and details of the properties of at least one radiation beam (45a, 45b, 45c) operable to irradiate the media; a stochastic modelling kernel (340) operable to receive parameters of an irradiation and calculate a distribution of radiation (380) resulting from the irradiation using data from the storage means (350, 360); characterised by a filter (370) arranged so as to remove components comprising substantially statistical noise from the output of the modelling kernel (340).
Patent CA-2321085-A1 (CA)
Title: Solid phase synthesis of 1-aminohydantoins
Inventor: WILSON LAWRENCE JOSEPH
IPC: C07B61/00
Filed: 1999-02-15
Abstract: The subject invention involves processes for making 1-aminohydantoin compounds using a solid-support resin, comprising the following steps: (a) preparing a resin-bound, protected .alpha.-hydrazinyl ester: (1) by reacting the resin with an .alpha.-bromo carboxylic acid, then with a protected hydrazine; or (2) by reacting the resin with a protected .alpha.-hydrazinyl carboxylic acid; (b) preparing a resin-bound imine by removing the blocking group from the hydrazinyl moiety, then reacting the unprotected hydrazinyl moiety with an aldehyde or a ketone; (c) preparing a resin-bound secondary urea: (1) by reacting the imine with p-nitrophenylchloroformate or triphosgene, then with a primary amine; or (2) by reacting the imine with an isocyanate, and (d) preparing the 1-aminohydantoin compound by removing the secondary urea from the resin and cyclizing it.
Patent CA-2321457-A1 (CA)
Inventor: KRACKLAUER JOHN J
IPC: B01D53/86
Filed: 1999-02-19
Abstract: A catalytically active surface is provided on the clean, combustion-exposed parts of an internal combustion engine that is green, has low operating hours, or is of modem, low emission design. A substrate or thermal barrier coat of high surface area and preferably capable of maintaining a surface temperature of at least 450 °C is deposited in the combustion chamber. Zirconia, silica, or lube oil ash are suitable.  A catalytically active moiety such as platinum or iron is dispersed in, on, or with the combustion facing surface of the substrate. Nanophase iron from ferrocene or nanophase platinum are suitable. Catalytic action is maintained by continuously providing a low level of catalytic precursor to the engine in the combustion charge.
Patent CA-2322455-A1 (CA)
Title: Absorbent article comprising microporous film
Inventor: BONELLI GUIDO
IPC: A61F13/15
Filed: 1998-10-29
Abstract: An absorbent article having a breathable microporous film is disclosed. The breathable microporous film is made by stretching a mixture of a thermoplastic resin and inorganic fillers at least in one direction. At least a part of the breathable microporous film is deformed such that Z number specified by equation (1) is 3.0 or above, wherein MS: average material strain at break of breathable microporous film; AS: average applied strain for deformation; N: neck down prevention coefficient; .sigma.MS: standard deviation of material strain at break; .sigma.AS: standard deviation of applied strain.
Patent CA-2322591-A1 (CA)
Inventor: CRIDLAND IAN
IPC: A01G31/00
Filed: 1999-03-19
Abstract: L'invention concerne un procédé de préparation d'un milieu de croissance de plantes à gradient de densité. Ledit procédé consiste à prendre une bande primaire comprenant un matériau à base de fibres minérales et un agent de liaison durcissable; à comprimer la bande primaire sur au moins une zone s'étendant longitudinalement de manière que la pression appliquée augmente de façon notable et continue dans le sens transversal de la zone, à former une bande secondaire en repliant la bande primaire sur elle-même, et éventuellement à comprimer la bande secondaire et à laisser durcir l'agent de liaison.
Patent CA-2322742-A1 (CA)
Title: Acides carboxyliques et acylsulfonamides, compositions contenant ces composes et methodes de traitement
Inventor: LACHANCE NICOLAS
IPC: C07D215/18
Filed: 1999-03-12
Abstract: L'invention concerne des composés représentés par la formule (I), ainsi que des sels, des hydrates et des esters de ceux-ci qui sont acceptables d'un point de vue pharmaceutique. Les composés sont utiles pour traiter ou prévenir des maladies dans lesquelles intervient la prostaglandine. L'invention concerne également des compositions pharmaceutiques contenant ces composés et des méthodes de traitement.
Patent CA-2330411-A1 (CA)
Inventor: LUU KY THOAI
IPC: H03C1/00
Filed: 2001-01-09
Abstract: A RF power amplifier system is presented herein including a RF source for providing a train of RF pulses exhibiting RF cycles of a fixed frequency and wherein each pulse is of a fixed amplitude and duration. A bridge circuit includes a first transistor switch for, when on, connecting the DC voltage source across a load for DC current flow therethrough in a first direction and a second transistor switch for, when on, connecting the DC  voltage source across the load for DC current flow therethrough in a second direction. A  switch driver serves, when enabled, to pass the RF pulses for driving the first and second transistor switches on and off at a frequency dependent upon that of the RF pulses and in such a manner that current from the DC voltage source alternately flows in the first and second directions through the load. A driver controller provides turn-on signals and selectively applies them to the switch driver for enabling the switch driver for passing the RF pulses to the transistor switches. A driver controller provides turn-on signals and selectively applies them to the switch driver for enabling the switch driver for passing the RF  pulses to the transistor switches. A driver amplifier is interposed between the switch driver and each transistor switch in the bridge circuit. A DC to DC power supply supplies DC  drive voltage to each driver amplifier wherein the power supply includes a second DC voltage source, a transformer having a primary winding and a plurality of secondary windings. A  first switching transistor serves, when on, to connect the primary winding across the second DC voltage source. A control circuit turns the first switching transistor on and off in synchronism with the frequency of the RF pulses so that any DC supply ripple voltage at the secondary windings has a ripple frequency equal to the frequency of the RF  pulses.
Patent CA-2333676-A1 (CA)
Title: Humidifier assembly
Inventor: LOESCHER THOMAS C
IPC: A61M16/10
Filed: 1999-05-28
Abstract: A humidifier having a humidification chamber for holding water and through which respiratory gas is forced, heated, and humidified and then directed to a patient during respiratory therapy. The humidifier is provided with a cartridge which occupies or displaces a significant or substantial amount of the gas space within the interior cavity, thereby correspondingly reducing the gas volume of the cavity and the compliance of the humidifier. By reducing compliance, the amount of gas which must be compressed, moved, heated and humidified within the humidifier is correspondingly reduced, thereby substantially improving the efficiency and overall functioning of the apparatus. With substantially reduced compliance as provided by the present invention resulting from reduction of between about 20% and about 80% of the volume of the humidifier cavity, a reduction of pressure needed to drive respiratory gas through the humidifier is achieved.
Patent CA-2336015-A1 (CA)
Title: Residual current detection device
Inventor: REEDER BRIAN MARTIN
IPC: G01R1/30
Filed: 1999-06-30
Abstract: A residual current detection device comprising a plurality of resistive shunts for connection in respective ones of a plurality of lines through which current can flow to and from a load, and detector means sensitive to the voltage developed across each of the shunts to detect any imbalance between the currents flowing through the shunts.
Patent CA-2336748-A1 (CA)
Title: Pharmaceutical preparation
Inventor: NISCHWITZ MARION
IPC: A61K9/38
Filed: 1999-06-29
Abstract: The invention relates to a pharmaceutical preparation containing levothyroxi ne sodium, potassium iodide, microcrystalline cellulose and binding agents free  from antioxidizing agents or other adjuvants and to a method for production said preparation.
Patent CA-2336827-A1 (CA)
Title: Display system having a light source separate from a display device
Inventor: SACCOMANNO ROBERT JOSEPH
IPC: F21Y101/00
Filed: 1999-07-02
Abstract: High luminance display devices, typically utilized in applications requiring sunlight readability, require unique design methodologies as the thickness approaches a maximum of one-inch. The present invention relates to a high intensity light generation engine (20, 920) and associated light transmission apparatus (30, 42, 40) for transmitting the light generated by the engine to a remote location. The invention is especially applicable for use in constructing a back lighted display (80), such as a liquid crystal display (LCD), of minimal thickness, i.e., one-inch or less. A display (80) of minimal thickness is achieved by separating the light source (12) and other peripherals (from the display device (80), using a remote enclosure (900)). Such a display (80) is most suited for use in high ambient lighting conditions where space is at a premium, such as in the cockpit of an aircraft.
Patent CA-2339525-A1 (CA)
Title: Novel urea derivatives having nitrogen aromatic heterocycle
Inventor: HORIUCHI MASATO
IPC: C07D233/64
Filed: 1999-08-04
Abstract: Novel urea derivatives represented by general formula (I) and salts thereof,  which exhibit an inhibitory effect against the production of TNF-.alpha. and  are useful as remedies for various diseases, particularly autoimmune disease s such as rheumatoid arthritis, wherein R1 is H, alkyl, phenyl or formula (II)  R2 is H, alkyl, carboxyl, an ester thereof or the like; R3 and R4 are each H , alkyl, cycloalkyl or the like; R5 is H, alkyl, hydroxyl or the like; R6 is a  nitrogenous aromatic heterocycle; and A1 and A2 are each alkylene.
Patent CA-2340348-A1 (CA)
Title: Continuous process for the production of anhydrosugar alcohols
Inventor: KIND WERNER
IPC: C08G63/672
Filed: 1999-01-11
Abstract: A process is described for continuous production of anhydrosugar alcohols by continuous introducing of sugar alcohols and/or monoanhydrosugar alcohols into a reaction vessel and dehydration in the presence of an acid catalyst and solvent, preferably an organic solvent, in which the resultant reaction products are soluble. Water and the organic solvent having the dissolved reaction product are each continuously removed from the reaction chamber. The reaction product is separated from the removed solvent, which is recycled into the reaction vessel. The reaction product is optionally purified by distillation and/or recrystallization. The purified reaction product obtained is particularly suitable as a starting product for producing polymers, and has a purity of at least 99.0 %.
Patent CA-2341144-A1 (CA)
Inventor: NG KWAN L
IPC: C12N1/19
Filed: 1999-08-27
Abstract: L'invention concerne des bromoperoxydases de vanadium produites par recombinaison. Ces enzymes sont utiles dans plusieurs applications industrielles.
Patent CA-2342214-A1 (CA)
Title: Process for the synthesis of tin carbapenem intermediates
Inventor: XIAO YI
IPC: C07F7/22
Filed: 1999-09-10
Abstract: The present invention relates to a process for synthesizing novel intermediates of formula (III) wherein R1 is a halogen. The intermediate compounds described herein are useful for the preparation of carbapenem compounds.
Patent CA-2342579-A1 (CA)
Title: Methods and systems for scheduling work
Inventor: MACEDO IVAN ROQUETE
IPC: G06Q10/08
Filed: 2001-03-29
Abstract: In a first aspect, the present invention provides a unique algorithm that interactively takes into consideration the melt shot (MS) and the hot strip mill (HSM) constraints such that a balanced and feasible solution is reached for the whole Primary Area (MS and HSM) at once.  In a second aspect, the invention takes a set of orders defined to be produced next in the Melt Shop area in a steel mill and groups them in small sets of orders with similar characteristics, called heats. Each order belongs to a heat. The system defines the precise moment that each heat has to be processed in each of its steps. In another aspect, the invention uses an event-driven based algorithm as a general approach for scheduling all the processing units with their specific constraints and the metallic units from hot coils to the finished products at the shipping areas. With a further aspect, the present invention provides a system that considers various constraints and assigns a precise start and finish time for each slab to be processed in each processing unit specified in the slab route.
Patent CA-2343296-A1 (CA)
Inventor: JONES EDWARD T
IPC: C10L1/182
Filed: 1999-09-16
Abstract: L'invention concerne un additif pour carburant utilisé pour le traitement de carburants d'hydrocarbures liquides, le but étant de réduire les émissions polluantes pendant la combustion de tels carburants. Selon sa formulation, la composition de l'additif contient l'huile de colza minérale, des essences minérales, un éther alkyle de glycol et au moins un agent de surface éthoxylé aromatique d'alkyle. On a découvert que cette composition d'additif pour carburant peut être mélangée à de tels carburants de façon à réduire considérablement les émissions pendant la combustion desdits carburants.
Patent CA-2344190-A1 (CA)
Title: Monolithic polymer composition having an activation material
Inventor: HEKAL IHAB M
IPC: C08L23/10
Filed: 1999-09-17
Abstract: The present invention includes processes and resulting structures for producing a modified polymer having interconnecting channels. The interconnecting channels act as controlled transmission passages through the polymer. A hydrophilic agent is blended into the polymer so that it is distributed within the polymer. In one embodiment an absorbing and releasing material is blended into the polymer so that the absorbing and releasing material is distributed within the product. The product is solidified so that the hydrophilic agent forms passages in the product through which a desired composition is communicable to the absorbing and releasing material that is entrained within the product. The solidified product may be used to form a desired shaped article such as plug type inserts and liners for closed containers, or it may be formed into a film, sheet, bead or pellet.
Patent CA-2344437-A1 (CA)
Title: Window blind for decoration and sun protection
Inventor: VAN AMELSVOORT MARCO JOHANNES
IPC: E06B9/386
Filed: 1999-09-16
Abstract: The invention relates to a window decoration/sun protection such as a horizontal slatted blind, a vertical slatted blind, a roller blind, and a pleated blind. When brought into a condition ready for use, the window decoration comprises a first face extending in horizontal direction over at least substantially the full width of the window decoration. When brought in to the condition ready for use, the window decoration further comprises a secon d face extending in horizontal direction of the window decoration. The first face transmits at least substantially no light. The second face subdues the incident light in such a manner that a person present at his workplace in an  inner space provided with the window decoration can still look outside throu gh the second face, the first face being located above the second face.
Patent CA-2344794-A1 (CA)
Inventor: TODA KOJI
IPC: B41J2/385
Filed: 2001-04-20
Abstract: A double line electrode unit for use in an electro-coagulation printer contains a pair of electrode plates, negative electrodes and a prepreg (or an insulating layer). The negative electrodes are linearly arranged with prescribed intervals of distance therebetween on surfaces of the electrode plates respectively and are enclosed insulating resin materials being solidified. The insulating resin materials contain fillers that are selected from among prescribed materials of boron nitride, aluminum nitride, alumina and silica. In addition, connectors are arranged on other surfaces of the electrode plates in connection with the negative electrodes respectively.  The electrode plates are consolidated under heating and pressurized conditions by way of the prepreg such that the negative electrodes respectively arranged on the surfaces of the electrode plates face with each other by intervention of the prepreg, which has a prescribed thickness and is made by fabric material such as glass fibers impregnated with unhardened resin. After filling and solidifying the insulating resin materials on the negative electrodes of the electrode plates, inspection is performed such that electrification is made with respect to each of basic units of negative electrodes to locate an electrification failure area. Then, the complete electrode plate is made by joining together a prescribed number of the basic units of negative electrodes excluding a basic unit of negative electrodes corresponding to the electrification failure area, which is cut and removed.
Patent CA-2345096-A1 (CA)
Title: Systeme d'elimination de la magnetite exfoliee et refroidissement avec force controlable pour chaudieres
Inventor: HUGHES ADRIAN ROBERT
IPC: F22B37/48
Filed: 1999-09-23
Abstract: Cette invention se rapporte à un procédé servant au refroidissement contrôlable d'une chaudière (10) et à l'élimination de la magnétite exfoliée se trouvant sur les tubes (30, 31) de la chaudière, ce procédé consistant à laisser s'écouler un gaz sec dans les tubes (30, 31) de la chaudière à une vitesse supérieure à la vitesse terminale des lamelles de magnétite, à mesure que la chaudière (10) est refroidie à partir d'une température supérieure à la température à laquelle se produit l'exfoliation. Cette invention présente également un procédé permettant d'éliminer les bouchons de magnétite (100) obstruant les tubes (30, 31) d'une chaudière.
Patent CA-2347029-A1 (CA)
Title: Thin and lightweight ballistic resistant garment
Inventor: BACHNER THOMAS E JR
IPC: F41H5/04
Filed: 1999-10-15
Abstract: A ballistic resistant protective garment (10) with a ballistic resistant pad (30) having at least two panels (32, 34) and a plurality of overlying layered sheets (36) within the panels of the ballistic resistant pad in which the sheets are constructed of woven lyotropic liquid crystal polymer fiber.