baber/WOPTO huggingface dataset:
Patent CA-2216432-A1 (CA)
Title: Liquid phase conversion of a source of sulfur dioxide to sulfuric acid
Inventor: O'BRIEN ROBERT N
IPC: C01B17/775
Filed: 1996-03-27
Abstract: A process for producing in liquid phase, concentrated sulfuric acid in the liquid phase from a source of sulfur dioxide, is described. The process comprises converting the source of sulfur dioxide to sulfuric acid. The liquid phase comprises: a) nitric acid at a sufficient concentration to commence conversion in the presence of oxygen, of sulfur dioxide into sulfuric acid in the initial absence of sulfuric acid, b) nitric acid at a sufficient concentration to maintain conversion of sulfur dioxide in the presence of sulfuric acid either generated by said conversion or present at commencement of said conversion, and c) combined concentration of nitric acid and sulfuric acid ranging from 5M to 16M where the concentration of nitric acid is at least 5M in the initial absence of sulfuric acid, and a source of oxygen is introduced to the aqueous phase at a concentration sufficient to provide for such catalytic conversion of SO2 to H2SO4.
Patent CA-2216633-A1 (CA)
Title: Synthesis of bis-indolylmaleimides
Inventor: SINGH UPINDER
IPC: C07D487/18
Filed: 1996-03-27
Abstract: The present invention provides an efficient process of reacting a bis-indolyl acid of Formula (II), wherein R1 is a hydrogen or C1-C4 alkyl and R, X, and Y  are optional substitutions; to produce a bis-indolyloxallic acid of Formula (III). Compounds of Formula (III) are readily converted to the bis-indolylmaleimides.
Patent CA-2218520-A1 (CA)
Inventor: SCHWITHAL MANFRED
IPC: F23R3/28
Filed: 1997-10-16
Abstract: A combustion chamber of a gas turbine with a ring-shaped head section, in which a front plate for receiving burners is provided, which are supplied with a primary airflow via annularly arranged air inlet openings in the head section, wherein the backup points being formed on the exterior of the head section (1) in respect to the inflow to the air inlet openings form a ring, within which the air inlet openings are located, and wherein furthermore the front plate has heat shields provided in the combustion chamber burner section and fixed in place by means of bolt connections. In addition, mounting openings for the bolt connections (11) are provided in the head section, wherein the backup points being formed on the exterior of the head section in respect to the inflow to the mounting openings form a ring, which is not located outside the ring formed by the backup points of the air inlet openings.
Patent CA-2225176-A1 (CA)
Inventor: TROKHAN PAUL DENNIS
IPC: D21H17/59
Filed: 1996-06-03
Abstract: A soft absorbent, creped tissue paper having an ATP factor of less than about 0,036, a slip/stick coefficient of less than about 0.024, and a lint level of less than about 6. The tissue paper preferably has a density of less than about 0.15 gram/cm3. Preferably, the creped tissue paper is a single- or multi-layer, single-ply tissue. More preferably, the creped tissue paper is made by a through air drying technique. Tissue paper having unique combinations of these above attributes is highly desirable by the consumers.
Patent CA-2226447-A1 (CA)
Title: Distributed network control and fabric application interface
Inventor: EHLINGER JAMES
IPC: H04L12/56
Filed: 1998-01-07
Abstract: A distributed communications switching system and its associated telecommunications network infrastructure(10) includes a plurality of interconnected switching systems (12 1, 12 2 and 12 3), some of which may be controlled by another switching system and its associated telecommunications network infrastructure. The switching systems are controlled via at least one switch processing platform (16) that generates generic commands for receipt by the switching systems in response to signaling messages received by the SPP. A fabric application interface (19) couples the switching systems to the switch processing platform for distributing generic commands to and from the appropriate switching system and for translating the generic commands into native commands (or vice versa) for execution by the switching system. The fabric application interface also translates signals received at the switching system into generic commands for receipt by the switch processing platform. The ability of the fabric application interface to distribute generic commands to and from the switching systems and to communicate signals received at the switching systems allows the switch processing platform to exercise call control for each switching system regardless of the nature of the call processed thereby, allowing greater flexibility and cost-effective use of application software (both service control and basic call control), and other associated telecommunications network infrastructure such as service circuit equipment.
Patent CA-2228131-A1 (CA)
Inventor: ROSS ARTHUR
IPC: H03H15/00
Filed: 1996-07-31
Abstract: Procédé et appareil de désetalement adaptatif d'un signal à spectre étalé à séquence directe. Ce signal à spectre étalé à séquence directe est transmis à un filtre transversal (101). La sortie du filtre (101) est désétalé par le dispositif de désétalement d'étalement (102), afin de produire un symbole variable déterminé par le dispositif (122) d'estimation de symbole. Ce symbole variable est transmis à un circuit de décision (124) qui génère une version d'erreur corrigée des données du symbole variable, désignée symbole constant. La valeur de ce symbole constant est soustraite du symbole variable par le soustracteur (126) afin de générer un symbole d'erreur. Ce symbole d'erreur est ensuite utilisé pour calculer des valeurs de prise du filtre transversal au moyen d'un algorithme de moindre carré (LMS) utilisé par un adaptateur (103) de prise.
Patent CA-2231263-A1 (CA)
Title: Device, router, method and system for providing a hybrid multiple access protocol for users with multiple priorities
Inventor: RUSZCZYK CHESTER A
IPC: H04L12/403
Filed: 1996-08-22
Abstract: A system, device (100), router and method (200) implement a hybrid multiple access protocol for users with multiple priorities that provides efficient reservation of channel resources to accommodate users with randomly transmitted requests wherein the users have multiple priorities. The present invention provides the following benefits over existing solutions: 1) support of multiple service categories; 2) insurance that all users admitted to the system receive their negotiated service guarantee appropriate for their service category; 3) achieves an overall system performance that is comparable to centralized algorithms at high system loads, while allowing desirable performance levels of distributed access protocols at low system loads; 4) allows transmission of variable number of packets each with variable size when access is granted to a user; and 5) reduces the number of instances a user needs to content for access, thereby reducing collisions and overhead due to contention slots and improving system performance.
Patent CA-2233340-A1 (CA)
Title: Multi-media technology for nutrition education and diet planning
Inventor: KUCH NINA J
IPC: G06F17/30
Filed: 1995-09-28
Abstract: The nature and substance of this invention includes a method and an apparatus for displaying information relating to a characteristic of an object which comprises a storage means (70) containing data for displaying images of different kinds of objects and for each kind of object relating to different sizes of each of the kinds of objects; a database (54) containing data relating to different kinds of characteristics in appropriate units of measurement of each of the kinds of objects and for each kind of characteristic relating to different sizes of each of the kinds of objects.  The objects (202, 204, 206, 208) may be different kinds of food respectively in different portion sizes, and the characteristics may be respective measurements of nutrients for each food portion size.
Patent CA-2233595-A1 (CA)
Title: Method of making graded index polymeric optical fibres
Inventor: KRINS BASTIAAN
IPC: B29C48/05
Filed: 1996-11-28
Abstract: Disclosed is a method of making a graded index polymer optical fibre comprising a multicomponent spinning process employing spinning masses comprising a core spinning mass and a sheath spinning mass, the spinning masses comprising a polymer, a polymerizable monomer, and an initiator. The monomer in the core spinning mass has a higher refractive index than the monomer in the sheath spinning mass, and the spinning masses are extruded and cured. The spinning conditions are chosen such that the monomers are substantially contained within the fibre during extrusion and curing and the total of the spinning masses is intrinsically thread forming. The spinning masses may be extruded in, e.g., water. The core and the sheath polymer may be, e.g., poly(methyl methacrylate); the core monomer may be methyl methacrylate, and the sheath monomer may be 2,2,3,3-tetrafluoropropyl methacrylate; or the core and the sheath polymer may be, e.g., poly(styrene-co-acrylonitrile); the core monomer may be benzyl methacrylate, and the sheath monomer may be methyl methacrylate. The spinning masses are solutions of the polymer in the monomer having a polymer concentration of from 20 to 70 % by weight.
Patent CA-2234147-A1 (CA)
Inventor: PAS HENRICUS GERARDUS HERMANUS
IPC: A01K41/06
Filed: 1996-10-17
Abstract: An egg incubating tray (1) for receiving eggs (3) which are to be incubated, comprises separate rigid supporting means (6) for each egg (3), the supporting means (6) delimiting an opening (2) on the underside and being formed such that an egg (3) which is supported in a stable incubating position by the supporting means (6) is situated partly in the opening (2) and can be turned regularly in the supporting means (6) in accordance with a predetermined schedule, about the longitudinal axis (4) of the egg (3), by means of turning means (10) which act on the said egg part (5) situated in the opening (2), in which the supporting means (6) for each egg (3) comprise two curved supports (6a, 6b) arranged apart from one another, the opening (2) being located between the two curved supports (6a, 6b).
Patent CA-2234853-A1 (CA)
Title: Process for improving productivity of a carbonylation catalyst solution by removing corrosion metals
Inventor: WARNER R JAY
IPC: B01J38/74
Filed: 1996-10-16
Abstract: A process for treating low water content carbonylation catalyst solutions which contain a rhodium component and an alkali metal component to remove metallic corrosion products is disclosed. The process comprises contacting the catalyst solution with an ion exchange resin, preferably in the lithium form, and a sufficient amount of water to decrease the concentration of alkali metal ions to optimize removal of corrosion metal products.
Patent CA-2235319-A1 (CA)
Inventor: TAN CHEE HONG
IPC: B01D9/00
Filed: 1996-10-04
Abstract: PCT No. PCT/BE96/00106 Sec. 371 Date Apr. 14, 1998 Sec. 102(e) Date Apr. 14, 1998 PCT Filed Oct. 4, 1996 PCT Pub. No. WO97/14777 PCT Pub. Date Apr. 24, 1997Process for crystallizing fatty substances for their subsequent fractionation especially by pressure filtering, consisting in particular in melting the fatty substances, dividing the molten mass into beads, feeding these beads into a pre-refrigerated aqueous solution, adjusting the concentration of the fatty substance relative to the aqueous solution, adjusting the feed rate of said beads, adjusting the temperature of the beads/solution mixture, maintaining said mixture temperature until the crystallization of each bead has completely stabilized, subsequently transferring the beads/solution mixture to the filtration location, separating the fatty substance beads under a low pressure from the aqueous solution, and finally extracting from said fatty substance beads, under high pressure, the liquid portion of the fatty substance, and apparatus for applying this process.
Patent CA-2240559-A1 (CA)
Title: Embankment hammer
Inventor: ASBERG BENGT
IPC: E21B7/20
Filed: 1998-06-12
Abstract: An overburden drilling equipment for drilling a hole. The equipment comprises a down-the-hole hammer (11) for rock drilling, comprising a cylinder (13), a piston (20) reciprocating in the cylinder due to pressurized water being directed alternately to the upper and lower ends of the piston to effect its reciprocation in the cylinder. Each downward stroke inflicting an impact blow upon an anvil portion (17) of a drill bit (12) extending upwardly within the lower portion of the cylinder. A drill chuck (21) is mounted at a lower end of the cylinder to receive the drill bit. A generally cylindrical casing shoe ( 14) adapted for attachment with a casing (15) and rotatably connected to the drill bit to be longitudinally advanced thereby during a drilling operation. The drill chuck comprising at least one key (30) defines the largest radius of the drill chuck. The casing comprises a diametrically reduced portion (32) which has at least one keyway therein. The key and the diametrically reduced portion (32) retain the hammer in relation to the drill bit.
Patent CA-2240655-A1 (CA)
Inventor: GOLDEN RICHARD
IPC: G06Q40/00
Filed: 1998-06-16
Abstract: An automated transaction tax reporting/collection system. The system includes individual point of sale terminals disposed at each remote vendor location. The point of sale terminals are networked to a central computer, preferably via a plurality of intermediate data collection sub-stations. Each terminal includes means for inputting and storing data regarding taxable transactions, as well as for storing data reflecting the tax accrued on each transaction. This stored data is collected on a periodic, rotating basis by the corresponding data collection sub-station according to control signals generated by the central computer. All of the collected data is ultimately transmitted to the central computer, which is operative to generate reports reflecting the transaction tax due from each remote vendor location. These reports may then be sent to the taxing authority, the individual merchants, and/or to other taxing authorities, such as the federal government. Preferably, each point of sale terminal also includes a printer which prints an official tax receipt for each transaction recorded.
Patent CA-2243248-A1 (CA)
Title: Device for tissue engineering bone
Inventor: VAN BLITTERSWIJK CLEMENS ANTON
IPC: A61L27/44
Filed: 1998-07-15
Abstract: A device for bone tissue engineering is described which comprises a scaffold material consisting of a bioactive, osteoconductive and bone-bonding segmented thermoplastic copolymer and cultured osteogenic or osteoprogenitor cells, especially bone cells. The copolymer consists essentially of a multiplicity of recurring long-chain ester units and short-chain ester units, the long-chain ester units comprising from 35 to 80% by weight of the copolyester and being represented by the formula -OLP-CO-   or   -OLO-CO-R-CO-and the short-chain ester units being represented by the formula -OEO-CO-R-CO-    and/or    -O-Q-CO-wherein L    is a divalent group remaining after removal of terminal hydroxyl groups from a poly(oxyalkylene) glycol with an average molecular weight of between 300 and 3000; R    is a divalent group remaining after removal of carboxyl groups from a dicarboxylic acid having a molecular weight of less than 300; Q  is an alkylene group having 1-6 carbon atoms and/or a cyclohexylene of phenylene group; and E     is an alkylene group having 2-6 carbon atoms.
Patent CA-2244112-A1 (CA)
Inventor: BRANDI MARIA LUISA
IPC: A61K31/445
Filed: 1997-01-27
Abstract: A method of inhibiting colon cancer comprising administering to a mammal in need thereof an effective amount of a compound having formula (I), wherein R1 and R3 are independently hydrogen, -CH3, (a), or (b), wherein Ar is optionally substituted phenyl; R2 is selected from the group consisting of pyrrolidine, hexamethyleneimino, and piperidino; or a pharmaceutically acceptable salt or solvate thereof.
Patent CA-2245034-A1 (CA)
Inventor: KING NATHANAEL NELSON
IPC: B60B33/00
Filed: 1998-08-14
Abstract: Disclosed is a stroller including a frame member, a swivel mount adapted to receive the frame member, a swivel latch adapted to be received in the swivel mount, a suspension housing including a swivel latch receiving portion, the suspension housing adapted to be attached to the swivel mount, a swivel pin adapted to be received in the frame member, the swivel mount, and the suspension housing, and at least one wheel pivotally attached to the frame member.  Also disclosed is a swivel wheel mount assembly, adapted to be mounted to a structure, including a swivel mount adapted to receive a portion of the structure, a swivel latch adapted to be received in the swivel mount, a suspension housing including a swivel latch receiving portion, the suspension housing adapted to be attached to the swivel mount, and a swivel pin adapted to be received in the portion of the structure, the swivel mount, and the suspension housing, wherein the swivel mount assembly is adapted to pivotally attach at least one wheel to the portion of the structure.
Patent CA-2245222-A1 (CA)
Inventor: KAMMELAR ROBERT WILLEM FREDERI
IPC: C07H3/04
Filed: 1997-02-19
Abstract: Methods are described for preparing surface-active lactose derivatives with lactose being aminated reductively, in a one-step process, using a C1-C20 alkylamine and hydrogen in the presence of a transition metal catalyst; or lactose being aminated by means of reactive processing per part by weight of lactose, a C1-C20 alkylamine being used and the N-alkyl-lactosylamine being reduced; or lactose being reacted with an alkylamine and the N-alkyllactosyl-amine obtained being acylated; lactose being reacted with an acylamine or a urea; and/or a lactylamine or lactosylamine being oxidised, at least 2, in particular 4-50, primary alcohol groups per 100 being converted into a carboxylic acid; and/or a lactylamine or lactosylamine being converted into an amine acid. The derivatives are useful as surfactants, emulsifiers and dispersants. Instead of lactose derivatives of other galacto-oligo-saccharides can also be prepared and used.
Patent CA-2246854-A1 (CA)
Inventor: ALBER ULRICH
IPC: B62B5/02
Filed: 1998-09-11
Abstract: A transporting device (10) having wheels (13) arranged on a frame  (11)  and  an  electromotively  driven  stair-climbing device, whereby the electromotor of the stair-climbing device drives first eccentric levers (26) on each of which second eccentric levers (30) are pivoted which are pivoted with their ends on carriers (17) having support legs (21) situated on their other end, wherein the carriers (17) extend in a linear manner on the device (10) and gears (28, 34, 36), having a transmission ratio of 1:2, are arranged between the first and second eccentric levers.
Patent CA-2247067-A1 (CA)
Inventor: YAMAKAWA TORU
IPC: C12N15/12
Filed: 1996-10-17
Abstract: Cette invention se rapporte à de nouvelles substances qui participent à l'adhésion et à la fusion des myoblastes entre eux au cours de la formation des myotubes et elle concerne des meltrines qui sont des protéines membranaires jouant un rôle au niveau de la fusion, de l'adhésion ou de l'agglutination des cellules, et notamment des myoblastes, des polypeptides des domaines respectifs de ces meltrines, des ADN codant ces meltrines, des ARN antisens associés à ces ADN, divers anticorps dirigés contre ces meltrines et les polypeptides de celles-ci, des vecteurs d'expression contenant les ADN, des transformants construits au moyen des vecteurs d'expression, un procédé de fabrication des meltrines susmentionnées et des polypeptides au moyen des transformants, et des compositions médicinales contenant ces meltrines ou des antagonistes de meltrines en tant que principe actif.
Patent CA-2247121-A1 (CA)
Inventor: ZINGARELLI BASILIA
IPC: A61K31/395
Filed: 1997-03-03
Abstract: This invention is directed to a pharmacologically acceptable composition for inhibiting cyclooxygenase in a mammal, which includes a mercapto derivative and a pharmaceutically acceptable carrier. The invention also concerns a method of inhibiting cyclooxygenase and treating various conditions where there is an advantage in inhibiting prostaglandins biosynthesis. The method includes the step of administering to a mammal a mercapto derivative in pure form or in a pharmaceutically acceptable carrier.
Patent CA-2248831-A1 (CA)
Title: Method and device for diagnosis for vehicle
Inventor: SASAKI KAZUMUNE
IPC: G01M17/007
Filed: 1998-03-10
Abstract: A method and device for examining in cycles a vehicle about a plurality of diagnosis items including diagnosis items which utilize forced operation signals. A forced operation signal supply means (550) supplies a forced operation signal (Sx) to a diagnosis object (101) through an ECU (1). A  diagnosing means (553) examines the object (101) by comparing the present state of the object (101) sensed by a vehicle state sensing means (552) with the predicted state of the object (101) when the forced operation signal (Sx) is supplied to it. When the state of the object (101) is judged to be good, or a predetermined time has elapsed after the start of the supply of the signal (Sx), a supply stopping means (555) commands the forced operation signal supply means (550) to stop the supply of the forced operation signal (Sx).
Patent CA-2253764-A1 (CA)
Title: Methode de surveillance sismique d'une zone souterraine en cours d'exploitation permettant une meilleure identification d'evenements significatifs
Inventor: DEFLANDRE JEAN-PIERRE
IPC: G01V1/42
Filed: 1998-12-07
Abstract: Méthode pour faciliter la discrimination et l'identification d'événements sismiques ou micro-sismiques au moyen de capteurs permanents dans une zone souterraine en cours d'exploitation. La méthode comporte l'installation à demeure, dans un ou plusieurs puits, de récepteurs d'ondes élastiques géophones, hydrophones, de façon à laisser les puits libres pour l'exploitation de la zone, et aussi d'au moins un capteur de référence avec couplage acoustique direct avec l'équipement technique d'exploitation de la zone (capteur plaqué contre une colonne d'exploitation par exemple) pour la détection des événements liés directement au fonctionnement des puits (ouverture et fermetures de vannes, etc.), l'acquisition des signaux issus des différents récepteurs et de chaque capteur de référence, en réponse aux ondes reçues, ainsi que l'analyse comparée des signaux associés aux récepteurs et au(x) capteur(s) de référence, pour trier les enregistrements en différentes familles selon que les événements dans la zone souterraine sont indépendants des événements détectés par chaque capteur de référence ou en dépendent directement ou indirectement, et pour chaque famille, l'application de traitements spécifiques. Application par exemple à la surveillance à long terme de gisements de production ou de stockage de fluides: hydrocarbures, déchets divers, géothermie, etc.
Patent CA-2253821-A1 (CA)
Title: Dispositif de stratification et procede de fonctionnement associe
Inventor: SMARTO JOHN E
IPC: B29D11/00
Filed: 1997-05-01
Abstract: Ce dispositif, destiné à former un composite à partir d'une paire d'éléments présentant des surfaces jointives opposées, comprend une base (1) ainsi qu'un dispositif de support (11) monté sur cette base. Un ensemble tête (20) réglable verticalement et destiné à maintenir l'élément supérieur du composite est placé au niveau de l'extrémité inférieure du support et il est relié de manière opérante à un moteur d'entraînement (15) situé au niveau de l'extrémité supérieure du dispositif de support. Un générateur de vide produit une pression négative afin de maintenir ledit élément supérieur contre l'organe de tête. On a disposé un support (50) sous l'ensemble tête et de façon coaxiale avec celui-ci, afin que celui-ci soutienne l'élément inférieur du composite. Les éléments supérieur et inférieur sont alignés latéralement et un adhésif est étalé sur leurs surfaces jointives opposées.