baber/WOPTO huggingface dataset:
Patent CA-2209900-A1 (CA)
Title: A hardware and data reduntant architecture for nodes in a communications system
Inventor: MAYRAND LUC
IPC: H04M3/00
Filed: 1995-12-14
Abstract: A mobile switching center including multiple home location register platforms (18) presented in varying configurations and connected to a network through a set of signal transfer points (38, 40). In a master/slave configuration, a master platform (32) is given primary responsibility for handling network service request messages, and dynamic data affecting messages are copied to a slave platform (34) in order to maintain data integrity therein in the event the master fails and the slave must take over for the master. In a load sharing configuration, each platform (32, 34) is given primary responsibility for handling network service request messages of its "own" subscribers, and dynamic data affecting messages are copied between the platforms in order to maintain data integrity therein in the event one of the platforms fails and the remaining functional platforms must take over for the failed platform in addition to serving its own subscribers. The signal transfer points (38, 40) function to automatically and transparently route service requests to the platforms for handling in accordance with the configurations and platform operating status. The disclosed platform configurations are applicable to data base systems in particular and, in general, to any node of a data communications system.
Patent CA-2209999-A1 (CA)
Title: Emballage a atmosphere regulee
Inventor: CURTIS DANNY S
IPC: B65D21/02
Filed: 1996-11-06
Abstract: Emballage (2) destiné à maintenir une atmosphère modifiée autour du contenu qu'il abrite lorsqu'il est stocké en milieu ambiant. Cet emballage a atmosphère modifiée se compose d'un plateau (4), d'une membrane (12) et d'un couvercle (14). Le plateau comprend une base (8) et des parois latérales (6) s'étendant vers le haut à partir de la base. Les parois latérales présentent un rebord extérieur (10) au niveau d'une partie supérieure. Les parois latérales et la base définissent une cavité dans laquelle le contenu est déposé. Une membrane (12) est fixée à la partie supérieure des parois latérales et clot la cavité. Le couvercle (14) est fixé de manière amovible à la partie supérieure des parois latérales; il est disposé au-dessus de la membrane afin d'empêcher cette dernière de venir au contact d'une structure externe qui interdit la perméation à travers celle-ci. Le couvercle comporte au minimum une ouverture (16) destinée à exposer la membrane au milieu ambiant. Un moyen de gerbage prévu à la base du plateau et au sommet du couvercle permettent un gerbage aisé de ces emballages à atmosphère modifiée.
Patent CA-2210153-A1 (CA)
Title: Self-diagnostic asynchronous data buffers
Inventor: SAHL STEFAN MAGNUS
IPC: G06F5/10
Filed: 1996-01-19
Abstract: A self-diagnostic asynchronous data buffer includes an addressable buffer having a write address determined by a write counter and a read address determined by a read counter. A write clock controls storage into the buffer and updating of the write counter. A read clock controls reading from the buffer and updating of the read counter. The self-diagnostic asynchronous data buffer additionally has a test register, an address counter, and a state machine. To determine whether a hardware fault exists, the state machine compares the address counter output with the output of the write counter. When the two are equal, the next write to the addressable buffer causes the input data to also be stored in the test register. Next, the address counter output is compared with the output of the read counter. When the two addresses are equal, the output data from the addressable buffer is compared to the value stored in the test register. Inequality between these two values indicates a hardware fault. In an alternative embodiment, a parallel asynchronous data buffer operates by storing into a parity register a parity value of the input data, rather than the input data itself. When the address counter output is equal to the output address of the read counter, parity of the output data from the data buffer is computed and then compared with the value stored in the parity register. Inequality between these two values indicates a hardware fault.
Patent CA-2210686-A1 (CA)
Title: Method and apparatus for objectively assessing and correcting the relative compliance of vertebral segments
Inventor: EVANS JOSEPH M
IPC: A61F5/01
Filed: 1996-01-05
Abstract: A method and apparatus allows for simple correction of resctricted spinal motion. The clinician applies a uniform low energy diagnostic impulse to each vertebral segment of interest (640) and the resulting force waveform is recorded.  The force wavefroms of each diagnostic impulse are compared to determine the relative compliance of each vertebral segment. The clinician then selects the vertebral segment to be adjusted (655) on the basis of identification of fixated or hypo-mobile segments and high compliance or hyper-mobile segments. The last step may or may not include comparison of the post adjustment compliance of the spinal system under analysis (515) with the compliance before adjustments were performed on the spine.
Patent CA-2212829-A1 (CA)
Title: Glutamic acid receptor agonist
Inventor: TAKEO JIRO
IPC: A61K31/216
Filed: 1996-02-20
Abstract: A glutamic acid receptor agonist which comprises as the active ingredient sulfonamide derivatives represented by general formula (I) or pharmaceutically acceptable salts thereof wherein A represents naphthyl, pyridyl, phenyl optionally having 1 to 5 substituents selected from the group consisting of halogeno, C1-4 alkyl, C1-4 alkoxy, nitro and acetamido, or C1-20 alkyl; B  represents C1-3 alkylene, -OCH2- or -CH=CH-; X and Y are the same or different and each represents hydrogen or fluoro; R represents carboxy, C2-5 alkoxycarbonyl, hydroxymethyl or (a) (wherein R1 represents hydrogen or C1-3 alkyl; and R2 represents hydrogen, hydroxy, C1-3 alkyl, carboxymethyl or C3-6 alkoxycarbonyl); m represents an integer of 0 to 2 and n represents an integer of 0 to 3. The agonist is efficatious in the prevention and treatment of nerve degeneration in morbid conditions.
Patent CA-2212869-A1 (CA)
Inventor: LANGFORD COOPER H
IPC: B01J29/48
Filed: 1996-03-04
Abstract: A photocatalyst compound comprising: (i) a photocatalyst selected from the group consisting of TiO2, WO3 and mixtures thereof, the photocatalyst being substantially free of sharp, narrow band X-ray reflections at angles corresponding to those of crystalline TiO2, WO3 and mixtures thereof, and (ii) a porous, crystalline, adsorbent support material. A process for producing the photocatalyst compound is also disclosed. The process comprises: (i) hydrolysing a non-ionic titanium compound to produce a colloidal suspension having an average particle size of less than about 250 .ANG.; (ii) contacting a porous, crystalline, adsorbent support material with the colloidal suspension to produce an impregnated support; and (iii) calcining the impregnated support to produce the photocatalyst compound. The photocatalyst compound is useful, inter alia, in the treatment of a fluid containing an organic pollutant.
Patent CA-2214954-A1 (CA)
Inventor: PRINCE DENNIS SCOTT
IPC: C02F3/00
Filed: 1997-09-10
Abstract: A slow sand filter system having a slow sand filter located  under  water  and  a  scraping  mechanism.    The scraping mechanism has at least one auger and a shaft, the auger extending across the width of the slow sand filter and being supported in the centre thereof by the shaft such that the auger is horizontal.  The auger may have a shroud located along the length of the auger and spaced therefrom.  The auger moves the schmutzdecke layer across the slow sand filter. The slow sand filter system may have recycle,  to permit passing water through the  slow sand filter system at a rate less than the maximum vertical flow rate and recycle of a portion of said water passing through the slow sand filter system back to the body of water and removal of the remainder of the water to another location.  The method permits operation of the slow sand filter  system  to  provide  a  variable  supply  of  water without minimal disruption of the filter system.
Patent CA-2215583-A1 (CA)
Title: Dock leveler
Inventor: WINTER BRUCE R
IPC: B65G69/28
Filed: 1997-09-16
Abstract: A dock leveler includes a pivotally mounted ramp and a lip member pivotally mounted to the distal end of the ramp and moveable between an extended position and a depending position for forming a path between a loading dock and a loadbed of a vehicle. A motor operated linear power screw type actuator is connected to the ramp for moving the ramp to an elevated position and includes an extensible tube member which is engageable with a second tube in telescoped relationship in such a way that the actuator tube may be controlled to be retracted after positioning the ramp to engage the loadbed of a vehicle so that the actuator is not subject to forces exerted by the ramp during oscillatory movement while the vehicle is being loaded or unloaded. In one alternate embodiment the actuator is connected to an intermediate link to allow the pivotal movement of the ramp without exerting damaging forces on the actuator. The lip may be extended by a toggle linkage responsive to movement of the ramp from an elevated position to a declined position in engagement with the loadbed and a latch mechanism is operable to hold the ramp in an extended position until the loadbed is engaged. Ramp support legs are retractable to allow further declining movement of the ramp and are actuatable by a spring connected to a linkage which is moveable to positions to change the direction of spring biasing forces acting to retract and extend the legs.
Patent CA-2217007-A1 (CA)
Title: Extruded, open-cell microcellular foams, and their preparation process
Inventor: IMEOKPARIA DANIEL D
IPC: C08J9/12
Filed: 1996-03-21
Abstract: Disclosed is an extruded, open-cell microcellular alkenyl aromatic polymer foam useful in insulating applications. The foam has an open cell content of 70 percent or more. The foam has an average cell size of 70 micrometers or less. The foam is particularly useful in evacuated or vacuum insulation panels. Further disclosed is a process for making the open-cell foam.
Patent CA-2218628-A1 (CA)
Title: Apparatus for packaging packs of odorous waste in flexible tubing
Inventor: WARD BRIAN
IPC: B65F1/06
Filed: 1997-10-20
Abstract: An apparatus for packaging a series of potentially odorous objects in individual packages along a length of flexible material from which odour can escape after a delay by osmotic action laterally through said tubing. Each package S, T, U, when formed, is automatically arrested by a clamping unit B to enable the tubing leading to the package to be twisted to close that package prior to being thrust further to enable a following package to be so arrested. A collector bag 7 is provided to receive each package whereby all packages in a length thereof can be removed in the bag when sealed, the bag being made of material inhibiting any osmotic action causing odour to escape from the bag.
Patent CA-2224847-A1 (CA)
Title: Normally white twisted nematic lcd with positive uniaxial and negative biaxial retarders
Inventor: VANDERPLOEG JOHN A
IPC: G02F1/1337
Filed: 1997-12-15
Abstract: A normally white twisted nematic liquid crystal display is provided for outputting improved viewing characteristics which are defined by high contrast ratios and reduced inversion. The display includes both positive and negative retardation films, the negative films being biaxial and defined by n x > n y > n z in certain embodiments where the "z" direction is substantially perpendicular to the film plane and the "x" and "y" directions are substantially parallel to the film plane. By providing the positive and biaxial negative retarders with specific retardation values and/or ratios, improved viewing characteristics are provided. According to other embodiments, a positive and a negative (uniaxial or biaxial) retarder may be provided on only one side of the liquid crystal layer.
Patent CA-2225408-A1 (CA)
Title: An installation template for fireplace
Inventor: HEMPEL RODNEY A
IPC: F24B1/198
Filed: 1997-12-19
Abstract: A template and method of installation of an in-the-room gas fireplace and associated cabinetry. The template coordinates the initial positioning of the gas fireplace unit, and additionally ensures that subsequently-installed plumbing and electrical connections will not obstruct or interfere with the associated cabinetry.
Patent CA-2225415-A1 (CA)
Title: Tar-containing composition and pharmaceutical and cosmetic preparation containing the same
Inventor: DE MORAGAS VINAS JOSE MARIA
IPC: A61K35/04
Filed: 1996-06-21
Abstract: A composition that contains at least one tar derivative, a cosmetic preparation that contains this composition, its use and pharmaceutical preparations that contain this composition are disclosed. Animal testing has shown conventional tar-containing preparations to be oncogenic. The disclosed composition allows cosmetic and pharmaceutical preparations to be produced as finely dispersed systems that are more effective and have less side effects than conventional preparations while containing 20 to 200 times less tar.
Patent CA-2227078-A1 (CA)
Title: Electrical contact device
Inventor: BERNHARD WERNER
IPC: H01R12/71
Filed: 1998-01-14
Abstract: The  invention concerns  an electrical  contact device,  comprising  first  and  second  electrical contacts 20,  22.   Contacts 20,  22  thus  form the electrical connection points of two electrical or electronic  components.    Second  contact  22  thus comprises a moving contact element 24 with a support surface  28.    The  support  surface  28  of  second contact 22 according to the invention comes to lie on contact surface 16 of first contact 20, whereby contact surface 16 is shaped flat overall.
Patent CA-2227555-A1 (CA)
Title: Systeme d'aide au deminage
Inventor: PANOT CHRISTIAN
IPC: F41H11/12
Filed: 1998-01-19
Abstract: La présente invention concerne un système d'aide au déminage, comprenant : - un ensemble matériel composé de : ~ un organe de traitement (10) portable possédant des capacités multimédia, ~ un casque (12) à projection par surimpression, ~ au moins un capteur de position (13) solidaire du casque, ~ une caméra de prise de vues (14), apte à enregistrer les gestes de l'opérateur ; - un ensemble logiciel composé de : ~ un logiciel de gestion de la base de données des différentes mines existantes, ~ un logiciel de création d'images de synthèse et d'animation, ~ un logiciel de retouche d'image, qui permet d'améliorer les images, ~ un logiciel de commande vocale.
Patent CA-2231582-A1 (CA)
Title: Composition enzymatique et son procede de preparation
Inventor: XIA HAI-YING
IPC: C12N9/14
Filed: 1996-10-16
Abstract: L'invention concerne une composition enzymatique à base d'un ou plusieurs enzymes présentant une liaison non covalente à un squelette de peptide, au moins un des enzymes étant hétérologue par rapport au squelette de peptide qui est capable de présenter une fixation par une pluralité d'enzymes. Cette composition est utile, par exemple, dans des systèmes de récupération, des systèmes d'administration ciblée d'enzymes multiples, des modifications de substrats solubles, des méthodes de quantification et d'autres mises en application dans l'industrie alimentaire, l'alimentation animale, les textiles, la bioconversion, la fabrication de papier et de pâte à papier, la protection des végétaux et la lutte contre les nuisibles, les conservateurs du bois, les lotions à application locale et les conversions de biomasses.
Patent CA-2238203-A1 (CA)
Inventor: BATJUK VLADIMIR GRIGORIEVICH
IPC: G09B19/06
Filed: 1998-05-21
Abstract: A dictionary of an alphabetic foreign language is an information carrier on which marked-off groups (4-10) of words (3) of the foreign language are positioned. A translation (13) and transcription (12) are provided adjacent to each word of the foreign language. Words, which have an identical sequence (11) of letters, comprising at least one third of the letters in the words, in the direction from the end to the beginning of a word, are combined into a group (4-10). Wherein, each group is positioned sequentially with respect to another group of words, the aforesaid sequence (11) of letters of which comprises the greatest number of coinciding letters in the direction from the end to the beginning of a word. The groups (4-10) of words are separated one from another by a separating element (14), for example, by marking the group or by an empty space (15) on the carrier. The number of groups is not limited. The dictionary may be made in the form of a book in which sections (1, 2) comprise words (3) of a foreign language, which have an identical final letter, in the form of sequential groups arranged into a column. Their translation (13) and/or transcription (12) is provided in another column.
Patent CA-2238882-A1 (CA)
Title: Cerium oxide with pores having a lamellar structure, preparation method therefor and use thereof in catalysis
Inventor: FERLIN PATRICK
IPC: C01F17/235
Filed: 1996-12-03
Abstract: PCT No. PCT/FR96/01918 Sec. 371 Date Mar. 1, 1999 Sec. 102(e) Date Mar. 1, 1999 PCT Filed Dec. 3, 1996 PCT Pub. No. WO97/20772 PCT Pub. Date Jun. 12, 1997A cerium oxide with pores having a uniform lamellar structure. The pores may be at least partially arranged in substantially parallel directions and may also extend throughout the grain. The method for preparing said cerium oxide comprises heat treating a compound that essentially consists of cerium carbonate octahydrate. The atmosphere in which the treatment is performed includes an air/steam or oxygen/steam mixture with a steam volume fraction of at least 40%. Said cerium oxide is particularly useful as a catalyst, especially in motor vehicle post-combustion catalysis.
Patent CA-2242679-A1 (CA)
Inventor: QIU XIAOPING
IPC: C09K8/70
Filed: 1998-07-08
Abstract: Methods and apparatus are disclosed for fracturing subterranean formations using fracturing fluids that are hydrated from dry mix blends.   One aspect of the invention comprises a dry blended particulate composition for hydraulic fracturing comprising a particulate hydratable polysaccharide, a particulate crosslinking agent, and a slowly releasing particulate base.  The compositions employ controlled release methods of particle dissolution.   The invention reveals a dry blended particulate composition capable of significantly improved high temperature stability.  Further, methods of fracturing and apparatus for rapidly hydrating and pumping the fracturing fluid into subterranean formations are disclosed.
Patent CA-2242986-A1 (CA)
Title: Sustained release drug formulations
Inventor: RUIZ JEAN-MARC
IPC: A61K47/44
Filed: 1997-01-15
Abstract: A sustained release drug formulation including: a drug; a biodegradable polymer which is insoluble in water; and an oil vehicle in which both the drug and the polymer are dissolved. The oil vehicle contains 10-100 % by volume of a pharmaceutically acceptable oil and 0-90 % by volume of a pharmaceutically acceptable liquid carrier for the drug or the polymer.
Patent CA-2247295-A1 (CA)
Title: Ceiling grid with bevel configuration
Inventor: LALONDE PAUL D
IPC: E04B9/04
Filed: 1997-12-11
Abstract: A suspension ceiling grid (11) for supporting rectangular panels (12). The grid members are elongated runners (13) with a generally inverted T-shaped cross section. Flanges (21 and 22) on the lower side of the runners (13) have inclined, exposed portions (23 and 24) and vertical portions (26 and 27) concealed by rabbeted edges (58) of the panels (12). The flange portions (21 and 22) are configured with respect to the proportions of the rabbeted panels (12), to appear as beveled edges of the panels whereby the finished ceiling (10) appears to be gridless. The runners (13) are specially notched (41 and 46) and trimmed to provide a strong but attractive faux miter joint at their intersections.
Patent CA-2250731-A1 (CA)
Inventor: BURKETT DOUGLAS D
IPC: A61K6/00
Filed: 1998-10-21
Abstract: The N-demethylation and N,N-demethylation derivatives of the two conformational isomers toluidine blue O ("TBO") have been synthesized, isolated and identified. An in vivo biological stain composition includes the conformational isomers of TBO and these N- and N,N-demethylation derivatives. The ratio of these isomers to these demethylation derivatives is at least 6:1. An improved method for detecting dysplastic oral tissue includes application of such TBO products, in a liquid carrier, to oral tissue. A process for preparing TBO products includes (1) oxidizing N,N-dimethyl-p-phenylenediamine to form an intermediate 2-amino-5-dimethylaminophenyl thiosulfonic acid, (2) oxidizing this intermediate and condensing the oxidizate with o-toluidine, forming indamine thiosulfonic acid and (3) further oxidizing the indamine intermediate to form a TBO-containing reaction product, which is precipitated from the reaction mixture as a complex, from which the final TBO product is separated. The complexing agent is added to the reaction mixture at least before the final oxidation stop, preferably before the second oxidation step. An HPLC method for characterizing TBO products containing the conformational isomers of TBO and their - and N,N- demethylation derivatives. The a mobile phase comprises an aqueous solution of an organic acid compound.
Patent CA-2252985-A1 (CA)
Inventor: LAMBREMONT YVES
IPC: C11D3/37
Filed: 1997-04-01
Abstract: An acidic thickened composition which is sprayable and readily clings to vertical walls and is effective in removing heavy encrusted lime scale and soap scum.
Patent CA-2259554-A1 (CA)
Title: Power converter
Inventor: IWASAKI TAKAYUKI
IPC: H02M7/519
Filed: 1996-07-03
Abstract: In a power converter provided with a group of semiconductor switches including at least one semiconductor switch and a DC terminal connected to the semiconductor switch group, a clamping circuit is connected to the semiconductor switch or the DC terminal. Alternatively a diode having a wide band gap is connected in parallel to a snubber diode or a snubber capacitor in a snubber circuit connected in parallel to the semiconductor switch. Thus, overvoltages and oscillating voltage applied to the semiconductor switch are suppressed.
Patent CA-2266105-A1 (CA)
Inventor: MCCORMICK RANDY M
IPC: G01N27/447
Filed: 1997-09-18
Abstract: L'invention concerne des chambres électrophorétiques présentant au moins une zone de modification de surface, ainsi que leurs procédés de fabrication. Dans certains modes de réalisation, les chambres comprennent dans la zone de modification de surface une couche polymère d'ancrage interpénétrant la surface de la chambre et une couche polymère électrophorétique copolymérisée avec la couche polymère d'ancrage. On prépare les chambres par mise en contact séquentielle de la surface de la chambre avec un premier monomère susceptible d'interpénétrer la surface et un deuxième monomère susceptible d'être copolymérisé avec le premier monomère, suivie d'une copolymérisation des premier et deuxième monomères. Dans d'autres modes de réalisation, une couche polymère électrophorétique est liée de façon non covalente sur la surface d'une matière de base polymère rigide sans l'aide d'une couche polymère d'ancrage séparée. Les dispositifs de l'invention peuvent servir dans toute application électrophorétique dans laquelle des entités sont déplacées dans un milieu sous l'influence d'un champ électrique appliqué.
Patent CA-2270432-A1 (CA)
Inventor: GLASCOCK JOAN K
IPC: A23L29/231
Filed: 1997-11-07
Abstract: An acidulant composition comprising hemipotassium phosphate; food products, consumable non-food products and processes for preparing or modifying these products which incorporate the acidulant composition.