baber/WOPTO huggingface dataset:
Patent CA-2181299-C (CA)
Title: Procede de communication cryptographique
Inventor: PATARIN JACQUES
IPC: H04L9/32
Filed: 1996-07-16
Granted: 2007-02-13
Abstract: Un nouveau schéma de cryptographie asymétrique pouvant être utilisé en chiffrement, signature et authentification. Le schéma est basé sur des équations polynomiales publiques de petits degré à valeur dans un anneau fini K. Le mécanisme n'est pas nécessairement bijectif. La clé secrète permet de cacher des équations polynomiales à valeur dans des extensions de l'anneau K. La résolution de ces équations permet, si l'on dispose de la clé secrète, de réaliser des opérations qui ne sont pas réalisables uniquement à partir de la clé publique.
Patent CA-2188138-C (CA)
Title: Centrifugal chopper pump
Inventor: DORSCH GLENN R
IPC: F04D7/04
Filed: 1994-10-19
Granted: 2004-03-16
Abstract: Stationary cutter teeth (136, 137) project axially inward into the bowl (126) of a centrifugal pump (120) and cooperate with edge portions of the pump impeller vanes (147) at the closed side of the pump bowl (126) for chopping solid matter in the material being pumped.
Patent CA-2189376-C (CA)
Title: Hybrid coiled tubing/conventional drilling unit
Inventor: SMITH DONALD A
IPC: E21B15/00
Filed: 1996-11-01
Granted: 1999-02-09
Abstract: There is described an apparatus for the drilling and servicing of bore holes in the earth, comprising a first sub-assembly adapted for the drilling and servicing of bore holes using jointed and coiled tubing, a second sub-assembly adapted for  the  drilling  and  servicing  of  bore  holes  using a continuous length of coiled tubing, and a platform adapted to support the first and second sub-assemblies thereon.
Patent CA-2189544-C (CA)
Title: Detergent liquide contenant un amide polyhydroxyle d'acide gras et un sel toluene sulfonate
Inventor: KEMEN KENNETH MICHAEL
IPC: C11D17/00
Filed: 1995-04-17
Granted: 2000-06-13
Abstract: L'invention concerne une composition concentrée de détergent liquide pour le lavage du linge ordinaire en machine, contenant un tensioactif anionique, un tensioactif du type amide polyhydroxylé d'acide gras et un sel hydrosoluble de l'acide toluène sulfonique. Le détergent ne contient pas plus de 50 % d'eau environ. La concentration de tous les tensioactifs de la composition détergente est supérieure à environ 10 % en poids de la composition. Le composant tensioactif anionique contient entre environ 50 % et environ 100 % d'alkyléthersulfates. Les compositions sont sensiblement limpides et isotropes au moment de leur préparation et restent stables après une longue conservation, même dans des conditions extrêmes. Les sels toluène sulfonates, qui sont des hydrotropes connus, permettent d'améliorer la stabilité de la composition davantage que d'autres hydrotropes et solvants usuels.
Patent CA-2189717-C (CA)
Inventor: BELCASTRO DOMENIC
IPC: A47G19/22
Filed: 1996-11-06
Granted: 2001-07-31
Abstract: An automatically sealing cup composed generally of a cup body, a lid sealingly and releasably connected with the cup body, and an automatic sealing feature that includes, generally, a flexible tube communicating with the interior space of the cup body, an aperture in the lid through which the flexible tube sealingly passes, a pivotable handle associated with the lid wherein the position of the handle determines pinching or unpinching of the tube, and, consequently, sealed and open states, respectively, of the automatically sealing cup, and a biasing member associated with the lid which automatically biases the handle to provide the sealed state. To switch the automatically sealing cup to the open state in which liquid may be extracted therefrom through the tube, a user must continuously apply pressure to the handle, upon the cessation of which the automatically sealing cup automatically reverts to the sealed state.
Patent CA-2191089-C (CA)
Inventor: KOHRS DOUGLAS W
IPC: A61F2/46
Filed: 1995-02-09
Granted: 2003-05-06
Abstract: L'invention concerne un implant (100) destinée à réaliser la fusion intervertébrale comprenant une première surface de contact (22a) et une deuxième surface de contact (24a) s'appliquant contre la partie corticale de l'os lors de l'insertion de l'implant (100) dans un alésage formé entre deux vertèbres (10, 12). L'implant (100) comprend une première arête (30) et une deuxième arête (32) dépassant de la surface de contact (22a, 24a). Les arêtes (30, 32) s'étendent à travers la partie corticale et la partie spongieuse de l'os. Les arêtes (30, 32) sont munies d'ouvertures (44) traversant les arêtes (30, 32). Les ouvertures (44) sont en communication avec l'intérieur de l'implant (100).
Patent CA-2191289-C (CA)
Inventor: LOEHRKE JOHN M
IPC: B67D3/00
Filed: 1996-11-26
Granted: 2004-05-18
Abstract: Each open liquor bottle in a tavern has a plastic spout with a magnetically operable valve to control the flow of liquor from the bottle. The spouts were fabricated with three integral rings extending around the spout with each ring being either plastic or metal to form a pattern that encodes information identifying a characteristic of the bottle. An annular actuator reads the pattern of rings and responds by producing a magnetic field that opens the spout valve to dispense the liquor. Three rings allow up to eight different classes of characteristics to be encoded. To increase that number of classes a supplemental metal ring is attached around some of the spout adjacent to one end of the actuator when the spout is inserted therein. The actuator is modified to sense presence of the supplemental metal ring on a spout. Adding another ring to certain spouts permits the number of classes of characteristics to be doubled without requiring replacement of existing spouts in a tavern.
Patent CA-2191385-C (CA)
Title: Side edges for ski of snowmobile
Inventor: YAMAMOTO KAZUHIRO
IPC: B62M27/02
Filed: 1996-11-27
Granted: 2005-03-08
Abstract: [OBJECT] To reduce the variation of steering force. [CONSTITUTION] Side edges (12) are attached to the right and the left side surfaces of a steering ski (1). The side edge (12) has a continuously curved lower surface.. A vertical plane including the axis of a pivot shaft (6) crosses a middle portion of each side edge (12).      Dislocation of contact centers (F, R) from a pivot point, and the distances (A, B) between the pivot point and the contact centers (F, R) are small when the steering ski (1) swings on the pivot shaft (6).
Patent CA-2194848-C (CA)
Title: Condition handling using script interpreters
Inventor: LAYES JONATHAN
IPC: G06F9/45
Filed: 1997-01-10
Granted: 2003-12-23
Abstract: A hybrid method is described that allows for the combination of both source-compiled and source-interpreted code in the execution of computer programs. While traditional practice has dictated otherwise, code does not need to be either solely interpreted or solely compiled.
Patent CA-2195742-C (CA)
Title: Method for recycling conditioned wood and installation for implementing the method
Inventor: HERY JEAN SEBASTIEN
IPC: F23G7/00
Filed: 1996-05-30
Granted: 2010-08-24
Abstract: PCT No. PCT/FR96/00809 Sec. 371 Date Jan. 30, 1997 Sec. 102(e) Date Jan. 30, 1997 PCT Filed May 30, 1996 PCT Pub. No. WO96/38515 PCT Pub. Date Dec. 5, 1996Apparatus for processing and recycling CCA (copper, chrome, arsenic) treated wood chips that includes a vertical reaction chamber into which a continuous stream of wood chips is poured. Hot gases at about 400 DEG  C. are introduced into the bottom of the column to heat the chips below their ignition point. The combustion gases flow upwardly through the chips to progressively cool the gases and allow them to condense in the column. The condensate is deposited upon the surface of the chips and the gases, which are now free of heavy metals, are evacuated from the column.
Patent CA-2196882-C (CA)
Title: Accouplement de bogie pour vehicule de ferroutage
Inventor: LARSON ERNEST J JR
IPC: B61D3/18
Filed: 1994-08-08
Granted: 2001-10-30
Abstract: Bogie (120) et remorque (160) convertible rail/route, destinés à un usage à la fois routier et ferroviaire, et procédé permettant de convertir cette remorque d'un mode de transport à l'autre et consistant à assembler une pluralité de telles remorques (160) et de tels bogies (120), afin de former un train (113) et à désassembler ensuite ceux-ci. La remorque (160) possède des roues (166) rétractables dotées de pneumatiques, conçues pour la route, ainsi que trois pivots (184, 185) d'attelage montés sur l'extrémité postérieure de celles-ci et qui forment un mécanisme de raccordement rigide. Le bogie (120), parqué hors des rails et à proximité d'un passage à niveau, possède trois mécanismes (138, 153) d'engagement destinés aux trois pivots d'attelage et utilisés pour raccorder de façon rigide le bogie (120) à la remorque (160). Afin de convertir une première remorque (160) d'un mode de transport routier à un mode de transport ferroviaire, on utilise un tracteur (112) pour reculer cette première remorque (160) vers un premier bogie (120), aux fins d'un raccordement rigide de la remorque (160) et du bogie (120). On peut ajouter de manière similaire des remorques (160) supplémentaires, afin de former un train (113).
Patent CA-2203858-C (CA)
Inventor: MAHOOD MICHAEL A
IPC: C02F1/04
Filed: 1997-04-28
Granted: 2000-04-18
Abstract: The disclosure involves a countertop distiller for home use. Such distiller is of the type including a condensing coil and an electrically-powered water heater. A method for controlling power flow to the heater includes the steps of activating a timer circuit to energize the heater, increasing the temperature of the coil and bypassing the timer circuit when the coil temperature increases to a predetermined value. The heater is de-energized when the water in the raw water container is substantially depleted and the heater temperature increases to a predetermined value because of such depletion. A new electrical circuit for a countertop distiller is also disclosed.
Patent CA-2204662-C (CA)
Inventor: ROSSI ANNA GRAZIA
IPC: C08F287/00
Filed: 1997-05-06
Granted: 2005-08-09
Abstract: Process for the preparation of ABS which comprises: a) preparing a solution consisting of a diblock linear rubber of the type S-B dissolved in a mixture of monomers comprising styrene and acrylonitrile; b) feeding to the solution of step (a) at least one preformed ABS resin having an average volumetric diameter of the rubber particles contained in the polymeric matrix of more than 1.5 µ; c) dissolving the preformed ABS in the solution of step (a) ; d) feeding in continuous the solution thus obtained to a polymerization reactor for ABS resins; e) polymerizing the final solution to produce an ABS with a multimodal morphology.
Patent CA-2205194-C (CA)
Title: Composite material endoprosthesis
Inventor: TOMONTO CHARLES V
IPC: A61F2/82
Filed: 1997-05-13
Granted: 2008-10-14
Abstract: An endoprosthesis includes a body structure formed of a biocompatible material, the body structure including a first material having an average atomic number greater than 24 and a second material that is different than the first material. The first material is present in an amount not greater than 9% by volume based on the combined volume of the first material and the second material. The body structure has a mass absorption coefficient effective to provide a ratio of an intensity of an incident X-ray to an intensity of a transmitted X-ray in a range of 1e-2 to 1e -4.
Patent CA-2209899-C (CA)
Inventor: HUBSCHEN GERHARD
IPC: G01N29/24
Filed: 1996-11-19
Granted: 2004-05-25
Abstract: Device for testing ferromagnetic materials, such as pipelines and the like, for faults, cracks, corrosion, etc., with at least one electromagnetic ultrasonic transducer with at least one high frequency current coil in connection with a magnetic field for exciting and/or detecting ultrasonic waves in the material wall and at least one magnet system producing the magnetic field, characterized in that the ultrasonic transducer is located between the pole pieces of different polarity of an additional magnet arrangement producing a magnetic prefield in the material wall.
Patent CA-2210872-C (CA)
Inventor: ROSER BRUCE JOSEPH
IPC: A61K35/14
Filed: 1996-01-19
Granted: 2009-09-08
Abstract: A stable blood factor composition contains a stabilising amount of trehalose in the absence of human serum albumin to provide a product stable at up to 60 .degree.C.
Patent CA-2212691-C (CA)
Inventor: ABE TETSUYA
IPC: G02B13/18
Filed: 1997-08-08
Granted: 2002-10-22
Abstract: A fast aspherical zoom lens system includes a positive first lens group, a negative second lens group, a negative third lens group, and a positive fourth lens group, arranged in this order from the object side. The lens system includes at least one aspherical surface. When the zooming operation is carried out, the second and third lens groups are moved. The aspherical surface is located at a position in which the condition defined by (1) Hasp/Hmax < 0.35, wherein Hmax represents the height of the paraxial ray furthest from the optical axis at the long focal length extremity for all the lens surfaces, and Hasp represents the height of the paraxial ray to the aspherical surface at which the long focal length extremity is satisfied.
Patent CA-2213654-C (CA)
Title: Rake receiver
Inventor: HIGASHI AKIHIRO
IPC: H04B1/707
Filed: 1997-08-21
Granted: 2000-05-30
Abstract: A RAKE receiver which is employed in a direct sequence spread spectrum communication system, and which can effectively receive multipath signals.  A path searcher measures the amplitude of each path, selects N paths with larger amplitudes in descending order of magnitude, where N is the number of despreaders, and assigns the despreaders to the selected paths to despread the signals of the paths.  This assignment of the despreaders to the paths is carried out such that a path with a large amplitude and a path with a small amplitude are assigned to adjacent despreaders and are input to the same pre-detection combiner.  The outputs of the despreaders are combined by the pre-detection combiners, and detected by detectors whose outputs are RAKE combined by a post-detection combiner.
Patent CA-2214068-C (CA)
Inventor: LOWE GARY L
IPC: G09F3/14
Filed: 1997-08-21
Granted: 2000-11-07
Abstract: This sheet material marking tag has a header part extending from an information part for printed matter. A holding orifice in the header comprises a major recess divisible into substantially equal upper and lower halves.      The orifice has an internal edge and the internal edge has a lower span consisting of all portions of the internal edge below the upper half of the major recess. A stub nose projects laterally from the orifice and terminates as a blunt tip. The lower edge of the nose tapers toward the information part but terminates at an orifice entry slit on the lower span of the orifice internal edge. A V-shaped open mouth below the nose has an upper lip common to the lower edge of the nose and a lower lip tapering toward the orifice but terminating at a lower lip intersection along the lower edge of the nose at a location spaced from the orifice. A pinch entry channel extends as a length along the lower edge of the nose between the lower lip intersection and the orifice entry slit. Affixing the tag to an elongated component of merchandise involves easily guiding the component through the mouth and pinch entry channel into the orifice.
Patent CA-2217283-C (CA)
Inventor: TSAI YIH-WAN
IPC: C03B5/167
Filed: 1997-10-24
Granted: 2000-06-20
Abstract: The present invention provides an apparatus and method for reducing the occurrences of solid defects in float glass due to corrosion of refractory in a glass melting and refining furnace. In making flat glass by the float process, batch materials are fed into a melting and refining furnace and heated to form molten glass. The molten glass passes through the melting section and into a refining section of the furnace where the glass is gradually cooled and conditioned prior to delivering the glass to a forming chamber where the molten glass is floated upon molten metal and formed into a continuous sheet of glass. During the melting operation, alkali vapors from the molten glass accumulate within a downstream portion of the melting section. These vapors attack and corrode those portions of the melting section of the furnace which are constructed from silica refractory. The products of the corrosion are deposited in the molten glass resulting in solid defects. In the present invention, a nonreactive gas is directed into the downstream portion of the melting section at a temperature no greater than that of the molten glass within the melting section and at a gas volume sufficient to reduce the amount of alkali vapors in the downstream portion of the melting section. As a result, the corrosion of the silica refractory is reduced and the total occurrences of solid defects in the glass due to refractory corrosion is reduced. In on embodiment of the invention, the gas is the combustion products from burners that are positioned in the downstream portion of the melting section of the furnace.
Patent CA-2219361-C (CA)
Title: Human antibodies derived from immunized xenomice
Inventor: KUCHERLAPATI RAJU
IPC: A61K38/00
Filed: 1996-04-29
Granted: 2012-02-28
Abstract: Fully human antibodies against a specific antigen can be prepared by administering the antigen to a transgenic animal which has been modified to produce such antibodies in response to antigenic challenge, but whose endogenous loci have been disabled. Various subsequent manipulations can be performed to obtain either antibodies per se or analogs thereof.
Patent CA-2220112-C (CA)
Title: Extraction du bromure
Inventor: FORD ROGER ROYDON
IPC: C25B1/26
Filed: 1995-05-04
Granted: 2007-02-27
Abstract: Poste de chloration dans lequel la saumure est transformée en hypochlorite de sodium par un électrolyseur. La saumure (1) envoyée dans l'électrolyseur (3) passe dans un filtre (2) capable d'adsorber le brome ou l'acide hypobromeux. Une partie de l'hypochlorite de sodium produit dans un électrolyseur (3) est renvoyée vers un point de l'alimentation en saumure situé en amont du filtre (2) de sorte que tout le bromure contenu dans la saumure soit oxydé et transformé en brome ou acide hypobromeux et adsorbé ensuite par le filtre (2).
Patent CA-2224958-C (CA)
Title: Catalyst for exhaust gas purification and system for exhaust gas purification
Inventor: MIZUNO HIROSHIGE
IPC: B01J23/44
Filed: 1997-12-15
Granted: 2001-05-08
Abstract: A catalyst for exhaust gas purification is capable of purifying the hydrocarbons, nitrogen oxides and carbon monoxide present in the exhaust gas discharged from an internal combustion engine. The catalyst has a monolithic carrier and a catalyst layer containing Pd, Ba and a heat-resistant inorganic oxide, formed on the carrier. The amount of Pd supported on monolithic carrier is 100-300 g per ft3 of monolithic carrier (3.53x10-3 to 1.06x10-2 g per cc of monolithic carrier), the amount of Ba supported on monolithic carrier is 0.010-0.060 g per cc of monolithic carrier in terms of BaO, and the weight ratio of Pd and Ba as expressed as BaO is 1:2 to 1:10.  This catalyst for exhaust gas purification is superior particularly in hydrocarbon purification for a low-temperature fuel-rich exhaust gas (such as exhaust gas emitted during cold start) of automobile.
Patent CA-2228781-C (CA)
Inventor: AKASHI TERUHISA
IPC: H04B10/27
Filed: 1998-02-05
Granted: 2001-10-02
Abstract: An optical switch for switching an optical path of an input optical signal comprises a substrate composed of a silica glass substrate, a separation layer formed on the silica glass substrate, a plurality of cantilever beams and formed in parallel to one another on the separation layer and connected at their tip ends to a connection member, at least one silica glass optical waveguide core formed on the cantilever beams, a plurality of optical waveguide fixed in opposition to the silica glass optical waveguide core, a cover for covering the cantilever beams, and a switch drive unit for bending the cantilever beams.          The switch drive unit comprises electromagnetic actuators, which comprise soft magnetic bodies formed on the connection member for the cantilever beams and on the substrate, soft magnetic yokes formed of a soft magnetic body, permanent magnets, and wire coils.
Patent CA-2229731-C (CA)
Title: Procede de fabrication de multiplicateurs d'electrons a dynodes discretes
Inventor: BENTLEY SCOTT T
IPC: H01J9/12
Filed: 1996-07-25
Granted: 2002-09-17
Abstract: Procédé de fabrication de multiplicateurs d'électrons à dynodes discrètes consistant à utiliser des techniques de micro-usinage et de traitement en film mince pour produire des ouvertures coniques dans un substrat gravable, à coller les substrats ensemble et à activer les faces internes du substrat gravé en recourant à des techniques de déposition en phase vapeur, d'oxydation ou de nitruration.
Patent CA-2233484-C (CA)
Title: Arc-resistant switchgear enclosure
Inventor: AUFERMANN ALBERT H
IPC: H02B13/025
Filed: 1996-09-06
Granted: 2002-04-23
Abstract: An improved arc-resistant switchgear enclosure is disclosed. The disclosed a rc- resistant switchgear enclosure provides a cost effective structure to collec t and channel the pressure and hot gases through the switchgear enclosure. In preferred embodiments, an internal arc chamber (30') is formed by assembling  modules and creating a void within the center of the switchgear enclosure. A s multiple compartments or modules (10, 12', 14, 24) for a switchgear enclosur e are connected, an arc chamber is created within the enclosure. Upon initiati on of an arc fault within a particular compartment, a relief flap (40, 42) or cover (42) for that particular compartment opens to channel the pressure and  the gases into the internal arc chamber or directly through the top of the enclosure (100). Pressures and gases are vented into the internal arc chambe r and flow horizontally through the arc chamber until a path to the top of the  switchgear enclosure is reached. These pressures and hot gases are then channeled upward and safely out of the switchgear enclosure. Also disclosed is a ventilation system for an arc-resistant switchgear enclosure that provides  natural ventilation while preventing any arc gases from entering the lower, ventilated compartment or compartments. This ventilation system permits the proper venting of pressurized gases originating in the lower ventilated compartment or compartments.
Patent CA-2236041-C (CA)
Inventor: ERIKKILA JOUNI
IPC: B66C13/46
Filed: 1996-11-13
Granted: 2006-02-07
Abstract: A crane control based on recorded location data and observed ambient data provided by at least one identifier (1, 2). The goods to be conveyed by the crane can be controlled to the location site. The identifier (1, 2) takes pictures of at least two different areas, which is implemented so that the identifier (1, 2) is pivotable, or fixed, whereby the certain image area directed to the identifier is reflected from a reflecting surface (30).
Patent CA-2237965-C (CA)
Inventor: KAJIHARA SHINICHIRO
IPC: A47L9/24
Filed: 1998-05-19
Granted: 2003-09-09
Abstract: A dust collecting direction switching portion is provided at a wall at the back of the main body of an upright type vacuum cleaner.  The dust collecting switching portion having a switch valve is branched into three directions.  The branch in the first direction forms a rib for allowing a coupling hose to be fitted to a suction opening directed toward a floor surface, the branch in the second direction forms a rib communicating with a dust collecting portion inside the vacuum cleaner, and the branch in the third direction forms a rib allowing a hose to collect dust at a relatively narrow space between pieces of furniture.  In operation, in response to an operation of a knob related to the switch valve, the switch valve switches one of the first and third direction ribs in association with the operation to communicate with the rib in the second direction.