baber/WOPTO huggingface dataset:
Patent CA-2238753-A1 (CA)
Title: Method of improving efficiency of radio channel usage in overlapping coverage areas
Inventor: SEED WILLIAM ROBERT
IPC: H04Q7/32
Filed: 1996-11-29
Abstract: A method is described for transmitting a signal over a wireless communications channel, the communications channel being common to primary and secondary communications systems that have at least partially overlapping areas of coverage. The primary system has a low duty cycle and transmits random bursts having a characteristic first duration. The method involves transmitting bursts on the secondary system, which have a duration at least equal to three times the first duration and contain forward error correcting codes to permit data contained therein to be recovered in the event of a collision with a burst on the primary system. The bursts on the secondary system have an intensity sufficiently below the intensity of the bursts on the primary system to avoid interference therewith.
Patent CA-2243045-A1 (CA)
Title: Friction-reducing ship and method for reducing skin friction
Inventor: TAKAHASHI YOSHIAKI
IPC: B63B1/38
Filed: 1998-07-13
Abstract: A method for reducing skin-friction is based on generating bubbles by blowing gas into water from a selected location of a moving ship which are separated along the longitudinal direction by specific distances.
Patent CA-2249542-A1 (CA)
Title: Pyrazole derivatives, their preparation and their use in pharmaceuticals
Inventor: STROBEL HARTMUT DR
IPC: C07D405/04
Filed: 1998-10-05
Abstract: The present invention relates to pyrazole derivatives of the formula I                  (see fig. I) in which X, R1, R1a, R2, R3, R4 and n are as defined in the claims, which are useful pharmaceutically active compounds for the therapy and prophylaxis of illnesses, for example of cardiovascular diseases such as hypertension, angina pectoris, cardiac insufficiency, thromboses or atherosclerosis. The compounds of the formula I are capable of modulating the body's production of cyclic guanosine monophosphate (cGMP) and are generally suitable for the therapy and prophylaxis of illnesses which are associated with a disturbed cGMP balance. The invention furthermore relates to processes for preparing compounds of the formula I, to their use for the therapy and prophylaxis of the abovementioned illnesses and for preparing pharmaceuticals for this purpose, and also to pharmaceutical preparations which comprise the compounds of the formula I.
Patent CA-2251136-A1 (CA)
Title: Pesticidal compositions of cyprodinil and myclobutanil or ipridione
Inventor: STEINER HANS
IPC: A01N43/54
Filed: 1997-03-29
Abstract: A fungical composition having synergistic action against disease infestation in plants, comprising at least two active ingredient components together with a suitable carrier, wherein component (I) is cyprodinil [=2-anilino-4-cyclopropyl-6-methyl-pyrimidine] (Formula (I)) and wherein component (II) is A) myclobutanil [=2-p-chlorophenyl-2-(1H-1,2,4-triazol-1-ylmethyl)hexanenitrile], or B) iprodione [=3-(3,5-dichlorophenyl)-N-isopropyl-2,4-dioxoimidazolidine-1-carboxamide].
Patent CA-2252222-A1 (CA)
Inventor: ARNOLD ADRIAN CHRISTOPHER
IPC: F04D29/32
Filed: 1997-04-16
Abstract: Vaned rotary apparatus, which may either be fixed or mounted for rotation, comprises an external casing (11) through which, in use, fluid is constrained to pass, characterised in that a plurality of inwardly-extending vanes (12) are carried by the casing (11), in which the vanes (12) comprise independent pitched elements which are supported only where they are mounted to the casing. Any solid material entrained in the fluid flow is thereby allowed a substantially free or unimpeded passage through the apparatus without becoming caught on the vanes (12). The vanes (12) may be axially spaced apart.
Patent CA-2252709-A1 (CA)
Inventor: OLTMANN KENT
IPC: B60S3/04
Filed: 1998-11-03
Abstract: A vehicle washing apparatus is described which can accommodate vehicles having a wide variety of different lengths and does not require a motorized system to move the vehicle through the vehicle washing apparatus. The vehicle washing apparatus includes a movable washing member mounted for movement in a continuous path around a track. The entire track with the washing member mounted on the track is movable in a longitudinal direction along the length of a vehicle to accommodate vehicles of different lengths. According to one preferred embodiment, the longitudinal movement of the track and the washing member are controlled based on a sensed length of the vehicle.
Patent CA-2253271-A1 (CA)
Title: Modulateur de phase electro-optique avec reponse impulsionnelle independante de la direction
Inventor: SPAHLINGER GUENTER
IPC: G01C19/72
Filed: 1997-07-18
Abstract: L'invention concerne un modulateur de phase électro-optique, servant notamment dans un gyroscope à fibres optiques. Ce modulateur de phase est caractérisé en ce que, tant que le temps nécessaire à la lumière pour effectuer une rotation coïncide avec le cycle de travail, la même réponse impulsionnelle est assurée dans les deux sens de trajet de la lumière. A cet effet, les électrodes de modulation (13, 14...) sont montées par rapport à une contre-électrode commune (12) de sorte que la propagation dans le temps et dans l'espace des potentiels au niveau des électrodes de modulation et du champ électrique entre les électrodes, produise une réponse impulsionnelle répartie de façon constamment symétrique.
Patent CA-2255038-A1 (CA)
Title: Toilet cleansing block
Inventor: VELTMAN JEROME J
IPC: C11D3/22
Filed: 1997-05-15
Abstract: Disclosed herein is a toilet cleansing block containing anionic surfactant such as a sulfonate, linear primary alcohol such as Neodol 23, and binder such as hydroxy ethyl cellulose. The block erodes very slowly, yet at essentially identical rates in hard or soft water. The block is for immersion in toilet tanks.
Patent CA-2256639-A1 (CA)
Inventor: KOPIETZ JAN
IPC: C09C1/58
Filed: 1998-12-17
Abstract: The invention describes carbon black pellets which can be produced by the addition of wax during dry granulation. The carbon black pellets are distinguished by a pellet hardness of at least 0.15 N with a wax content of less than 10 wt.%, based on the total weight of the carbon black pellets.
Patent CA-2257370-A1 (CA)
Title: Method and apparatus for providing volumetric projection
Inventor: TALBOTT DOUGLAS E
IPC: H04N13/395
Filed: 1998-12-22
Abstract: An apparatus displays an image in three-dimensional virtual space in a form that may be modified by a spectator using an interface device. The apparatus divides computer-generated data representing 3D images into data subsets representing two-dimensional slices of the 3D image. The apparatus displays each image slice on a layer in a stack of liquid crystal displays (LCD). The stack sequentially displays the layers of the image at a fast rate to appear as a single 3D image. Each layer in the stack has a dedicated driver and memory. The apparatus includes a reflector for reflecting the 3D image in a manner so as to produce a virtual image in unsurrounded space capable of being viewed from every direction. Spectators may use a user interface device to touch or manipulate the virtual image. The user interface device transmits data to the apparatus, which generates data to modify the virtual image.
Patent CA-2257371-A1 (CA)
Title: Composition comprising plant growth promoting rhizobacteria
Inventor: LEIBOVITCH STEWART
IPC: A01N63/20
Filed: 1998-04-06
Abstract: Compositions for enhancing grain yield and protein yield of a legume grown under environmental conditions that inhibit or delay nodulation thereof are provided. The compositions comprise a PGPR strain. In a particular embodiment the PGPR strain is of the genus Serratia. Moreover, methods for enhancing grain yield and protein yield of a legume grown under environmental conditions that inhibit or delay nodulation thereof are provided. The methods comprise an addition of an agriculturally effective amount of a PGPR strain in the vicinity of the seed or root of the legume.
Patent CA-2257510-A1 (CA)
Inventor: FUESSER ROLF
IPC: F02B27/02
Filed: 1997-05-09
Abstract: L'invention concerne un dispositif de circulation d'air, dans lequel des organes de réglage sont prévus au niveau du parcours d'écoulement pour modifier la géométrie d'écoulement de l'air en circulation. La totalité de la section transversale du parcours d'écoulement est divisée en canaux d'écoulement individuels (15, 16, 17) ou en éléments tubulaires (1, 3, 4) emboîtés les uns dans les autres. Des moyens ou des organes de réglage (13, 14) permettent de commander les parcours d'écoulement dans les canaux d'écoulement individuels (15, 16, 17; 1, 2, 3). Selon un mode de réalisation préféré de l'invention, trois canaux d'écoulement (15, 16, 17) sont respectivement raccordés par leurs extrémités à une ouverture interne (22 à 27) des organes de réglage (13, 14).
Patent CA-2266147-A1 (CA)
Title: A latent mercaptan as a heat stabilizer
Inventor: NORRIS GENE K
IPC: C08K5/37
Filed: 1999-03-18
Abstract: Flexible, semi-rigid, and rigid vinyl chloride polymer compositions comprising a latent mercaptan-containing heat stabilizer are substantially free from the offensive odor typically associated with mercaptans and are protected during processing by the degradation products of the latent (i.e., blocked) mercaptan which include a free mercaptan. The free mercaptan thus released enhances the activity of metallic-based heat stabilizers such as zinc carboxylates and organotin carboxylates and mercaptides in the polymer composition. Other products of the degradation are believed to include carbocations of the blocking moiety which are stabilized by a molecular structure in which the electron deficiency is shared by several groups. The latent mercaptan is selected from the group consisting of a 2-S-(tetrahydropyranyl)-thioalkanol, a carboxylic acid ester thereof, a 2-S-(tetrahydropyranyl)-thioglycolic acid, and an ester thereof.
Patent CA-2266215-A1 (CA)
Inventor: BURNSIDE SONNY K
IPC: B32B27/32
Filed: 1999-03-17
Abstract: A decorative shredded material having a complete pattern contained on each strip or piece of the decorative shredded material. Methods for making decorative shredded material.
Patent CA-2266879-A1 (CA)
Inventor: DARMER HOWARD
IPC: B65D33/01
Filed: 1999-03-25
Abstract: A plastic bag including an end region having a closure comprised of at least two parallel rows of seals which include alternating sealed and unsealed portions, the lower row includes sealed portions having a length larger than the length of the unsealed portions of the lower row which defines a pathway for the removal of gas contained in the plastic bag such that any change in the direction of flow of the gas is always less than 90°.
Patent CA-2267005-A1 (CA)
Title: Test circuit for verifying operation of an arc fault detector
Inventor: MACKENZIE RAYMOND WARREN
IPC: H02H1/00
Filed: 1999-03-26
Abstract: A test circuit for arc fault detectors of the type which respond to step changes in ac current over time generated each time an ac is struck includes a low frequency relaxation oscillator which generates a repetitive signal with step changes like those produced by an arc fault. The relaxation oscillator includes a capacitor charged through a resistor and shunted by a voltage breakdown device, preferably a diac. The capacitor is rapidly discharged when its voltage reaches the breakdown voltage of the voltage breakdown device to generate the step change which is input to the arc fault detector. With a repetition rate of the relaxation oscillator not greater than about 15 repetitions per second (rps), and preferably about 5 rps, a user can manually determine the time to trip to verify arc fault detector operation. With the oscillator operating at such a low frequency, a signaling device such as a light emitting diode (LED) placed in series with the voltage breakdown device, permits the user to manually count the number of step changes required to produce a trip thereby providing further verification of detector operability.
Patent CA-2268580-A1 (CA)
Title: Sorting of diamonds
Inventor: VAN WYK JAN ABRAHAM
IPC: G01N22/00
Filed: 1999-04-12
Abstract: The invention concerns a method of sorting particulate, diamondiferous material into a fraction rich in diamonds and a fraction rich in non-diamond particles according to ESR (electron spin resonance) response. In the method, the particles (12, 14) are located in a microwave cavity (20) and are subjected in the microwave cavity to a magnetic field. Microwave radiation is applied to the particles in the cavity in the presence of the magnetic field. The microwave spectrum transmitted by the cavity for each particle is detected and analysed. The particles are then sorted into fractions according to whether or not the detected microwave spectra are indicative of ESR absorption by diamond.
Patent CA-2270073-A1 (CA)
Title: Stable anhydrous formulation
Inventor: LAHANAS KONSTANTINOS M
IPC: A61Q19/00
Filed: 1998-09-10
Abstract: The present invention is a cosmetic or pharmaceutical composition for topical application comprising a silicone gel and an effective amount of a biological active, especially a retinoid. The compositions permit stabilization of the biologically active agents.
Patent CA-2270190-A1 (CA)
Title: System and method of detecting and preventing fraudulent telephone calls in a radio telecommunications network
Inventor: FOTI GEORGE
IPC: H04W12/12
Filed: 1997-10-23
Abstract: A system and method for detecting a fraudulent call origination in a radio telecommunications network having a subscriber's home Home Location Register (HLR) (14) for storing a stored location for a mobile station (11), a serving Mobile Switching Center (MSC) (12) in which the call origination is initiated, and a MSC-Location (MSC-L) (15) covering the location for the mobile station stored in the home HLR (14). The serving MSC (12) sends a reporting message to the home HLR (14) when a call is originated from the mobile station in the serving MSC. The reporting message indicates a reported location for the mobile station (11). The home HLR then sends paging request messages (18) to the serving MSC (12) and the MSC-L (15) requesting the serving MSC to page the mobile station in the reported location and requesting the MSC-L to page the mobile station in the stored location. Each MSC pages the mobile station and sends a paging result to the home HLR (14). The home HLR compares the stored location to the reported location, and analyzes the locations and the paging results to determine whether the call origination is fraudulent. If the call origination is determined to be fraudulent, the call is disconnected, and the mobile station is barred from originating calls until a proper personal identification number (PIN) code is entered.
Patent CA-2271888-A1 (CA)
Title: Systemes microfluidiques ameliores
Inventor: PARCE JOHN WALLACE
IPC: G01N1/10
Filed: 1997-11-18
Abstract: La présente invention concerne, de façon générale, des dispositifs (200) et des systèmes microfluidiques utilisant des systèmes électrocinétiques de transport de matières pour commander sélectivement et orienter le transport de ces matières à travers ou parmi des agencements complexes de microcanaux intégrés (par exemple, 202 and 208 + 2n, où n = 0, 1, ...8), disposés à l'intérieur de structures intégrées au corps.
Patent CA-2271926-A1 (CA)
Inventor: DUREE ALBERT DANIEL
IPC: H04L12/56
Filed: 1997-11-11
Abstract: A system and method to detect a call trigger during a call without requiring a service platform to remain connected to the call. A first communication device (106) transmits a call having call signaling and user communications. A signaling processor (112) receives the call signaling from the first communication device and selects a connection to a second communication device (108). An interworking unit (114) receives the user communications from the first communication device and converts the user communications from a time division multiplex format to asynchronous transfer mode cells that identify a selected connection to the second communication device. The interworking unit detects a call trigger in the user communications. The interworking unit transmits call trigger data to the signaling processor. The signaling processor processes the call trigger data and, upon validating the call trigger, instructs the interworking unit to transport the user communications to asynchronous transfer mode cells that identify the selected connection to the thrid communication device (110) and transports the user communications to the third communication device.
Patent CA-2272188-A1 (CA)
Title: Marine heat exchanger
Inventor: FERNSTRUM PAUL W
IPC: F28F9/02
Filed: 1999-05-18
Abstract: A marine heat exchanger has a low profile header and cooling tube configuration to minimize drag and maximize heat transfer during use. The cooling tubes extend from at least an underside of the header so that the header vertically disposed cross sectional area is minimized and the cooling tubes are exposed to flowing seawater prior to or along with the headers. The tubes can also extend forwardly of the header to further maximize heat transfer and minimize drag. The header construction is especially adapted for hulls without recesses for header containment.
Patent CA-2272595-A1 (CA)
Title: Technique for effectively generating multi-dimensional symbols representing postal information
Inventor: BROOKNER GEORGE M
IPC: G06F21/00
Filed: 1998-09-21
Abstract: In a mailing system for franking a postage indicium serving as a proof of postage, postal data including the postage needs to be communicated through such an indicium. Illustratively, the postal data is categorized into (a) invariable postal data, e.g., a device ID identifying the mailing system, which is unaffected by a franking transaction, and (b) variable postal data, e.g., the postage, which may change from one franking transaction to another. To avoid latency of the franking operation, the invariable postal data is preset for initial printing of the postage indicium, and the variable postal data is determined and set for printing in real time. In printing the postage indicium, the invariable postal data and the variable postal data are presented in that order in one or more symbols.
Patent CA-2277336-A1 (CA)
Inventor: MAYER BERND
IPC: C09D1/00
Filed: 1997-12-19
Abstract: The invention concerns an acid aqueous phosphating solution which contains zinc ions, phosphate ions, copper ions and hydroxylamine in free form, as a salt or hydroxylamine-cleaving compound, and additionally one or a plurality of hydroxylamine stabilizers selected from organic molecules having at least two heteroatoms per molecule or, in the case of polymers, at least one heteroatom per four carbon atoms. The invention also concerns an aqueous concentrate and an aqueous supplementary solution for the phosphating solution.
Patent CA-2277768-A1 (CA)
Inventor: GLOVATSKY ANDREW ZACHARY
IPC: H05K3/12
Filed: 1999-07-12
Abstract: There is disclosed herein a self-shearing stencil for use in applying solder paste or other bonding material atop a printed circuit board (PCB) in a predefined pattern. The stencil 50 has a top surface 12, a bottom surface 14, a first surface cavity 16 in the top surface, and a second surface cavity 18 in the bottom surface proximate the first surface. The cavities 16/18 overlap in a predefined manner so as to be in open communication with each other. When the stencil is placed on the PCB, the cavities are filled with solder paste and the PCB is then lowered away from the stencil, whereupon a bottom ledge 26 (defined by the stencil material underneath the first cavity) shears off the solder paste in the first cavity from the paste in the second cavity.
Patent CA-2279815-A1 (CA)
Title: Process for producing an alkylene glycol
Inventor: NAGATA KOUICHI
IPC: C07C29/09
Filed: 1999-08-09
Abstract: A process for producing an alkylene glycol, which is a continuous process for producing an alkylene glycol comprising the following steps (1) to (4), wherein the hydrolysis step (2) is divided into a plurality of stages, and the hydrolysis is carried out so that the water concentration in a reaction stage wherein the conversion of the alkylene carbonate is at least 60%, is from 15 to 30 wt%: (1) a carbonating step of reacting an alkylene oxide with carbon dioxide gas in the presence of a carbonating catalyst to form a reaction solution containing an alkylene carbonate, (2) a hydrolysis step of hydrolyzing the reaction solution obtained in step (1) while releasing carbon dioxide gas, to form an aqueous alkylene glycol solution, (3) a distillation step of distilling the aqueous alkylene glycol solution to obtain at least a dehydrated alkylene glycol and a solution containing the carbonating catalyst, and (4) a recycling step of supplying the solution containing the carbonating catalyst to the carbonating step (1).
Patent CA-2282737-A1 (CA)
Inventor: BEALL CLIFFORD JAMES
IPC: C12Q1/68
Filed: 1998-02-27
Abstract: The present invention provides methods, using a nucleotide integrase, for cleaving nucleic acids substrates at specific sites and inserting a nucleic acid molecule into the cleaved substrate. The method of cleaving one strand of a double-stranded DNA substrate comprises providing a nucleotide integrase comprising a group II-intron RNA having two hybridizing sequences capable of hybridizing with two intron RNA binding sequences on the one strand of the substrate and a group II-intron encoded protein which binds to a first sequence element of the substrate. The method of cleaving both strands of a double-stranded DNA substrate comprises providing a nucleotide integrase comprising a group II-intron RNA having two hybridizing sequences capable of hybridizing with two intron RNA binding sequences on one strand of the substrate and a group II-intron encoded protein capable of binding to first and second sequence elements in the recognition site of the substrate. The method of cleaving a single-stranded nucleic acid substrate comprises providing an integrase having two hybridizing sequences capable of hybridizing with two intron RNA-binding sequences of the substrate and a group II-intron encoded protein.
Patent CA-2286863-A1 (CA)
Inventor: GALBRAITH MICHAEL
IPC: F16L3/127
Filed: 1999-10-15
Abstract: An apparatus for directing conditioned air into a vehicle passenger compartment including an integrally formed attachment member for securing the apparatus to a vehicle support structure. The attachment member has a flexible free end, an elongated body, an aperture, and a plurality of living hinges. The elongated body is inserted into a vehicle support structure aperture. The elongated body is then folded onto itself until the flexible free end is able to be inserted into locked engagement with the aperture in the elongated body. Thus, the present invention minimizes the cost of the apparatus, the number of parts, assembly time and complexity.
Patent CA-2291039-A1 (CA)
Inventor: LIN YAYUN
IPC: A61N1/39
Filed: 1998-05-27
Abstract: The present invention includes a defibrillation system and method for treating a heart experiencing a ventricular arrhythmia by preconditioning a region of cardiac tissue surrounding a defibrillation electrode using a plurality of high energy pacing pulses. The plurality of high energy electrical pulses are provided to the region of cardiac tissue surrounding the first defibrillation electrode to prevent aberrant ventricular contractions of the heart for a quiescent interval after the defibrillation shock has been delivered, thus increasing the probability of converting the fibrillating heart. The plurality of electrical pulses can also be provided to the region of cardiac tissue surrounding the defibrillation electrode to affect the state of coarse ventricular fibrillation complex signals, where the plurality of electrical pacing pulses affecting the state of coarse ventricular fibrillation complex signals creates or augments coarse ventricular fibrillation complex signals. The coarse ventricular fibrillation complex signals can then be used to coordinate the delivery of a defibrillation level shock.