baber/WOPTO huggingface dataset:
Patent CA-2101284-C (CA)
Inventor: DUECK VERNON J
IPC: E04B2/02
Filed: 1993-07-26
Granted: 2000-07-04
Abstract: A block for forming a retaining wall comprising a generally parallelepiped body with front, rear, top, bottom and side surfaces and a central internal cavity with internal walls. Integrally formed protruding knobs are formed on the bottom surface adjacent the front surface and are positioned for protruding into the central cavity of at least one other block in a wall formed from the blocks. The protruding knobs are adapted to abut the internal walls of the open cavity to position the block in the retaining wall. A wall construction using the blocks is provided.
Patent CA-2104867-C (CA)
Inventor: VERESCHAGIN ALEXANDR L
IPC: C01B31/06
Filed: 1992-12-03
Granted: 1999-11-30
Abstract: Matière contenant du diamant ayant le rapport de teneur en éléments exprimés en pourcentage en poids suivant: carbone 75 à 90, hydrogène 0,6 à 1,5, azote 1,0 à 4,5, oxygène le reste, le rapport des phases exprimé en pourcentage en poids suivant: phase de type diamant amorphe aux rayons X 10 à 30, diamant de modification cubique le reste, et présentant une structure poreuse. 10 à 20 % de la surface de la matière se compose de groupes méthyle, nitryle et hydroxyle de deux types, ainsi que de groupes oxycarboniques fonctionnels de la formule générale O=R dans laquelle R représente =COH, =COOH, =CO, =C6H4O ou n'importe laquelle de leurs combinaisons, et 1 à 2 % de la surface se compose d'atomes de carbone avec des liaisons non compensées. Un procédé d'obtention de ladite matière consiste à procéder à la détonation d'une substance explosive contenant du carbone présentant une teneur en oxygène négative, ou d'un mélange de substances explosives dans un volume fermé dans l'atmosphère de gaz inertes au carbone, avec une teneur en oxygène comprise entre 0,1 et 6,0 % en volume, à une température comprise entre 303 et 363 K, et en présence d'une phase de carbone ultradispersée ayant une concentration comprise entre 0,01 et 0,15 kg/m.
Patent CA-2104941-C (CA)
Inventor: KIM ANDERSON H
IPC: H03F3/08
Filed: 1993-08-26
Granted: 1997-06-17
Abstract: Bulk gallium arsenide having a high hold-off voltage is optically activated by a laser resulting in high power output.  A high voltage input is applied to a semi-insulating gallium arsenide material.  The gallium arsenide material is activated by laser light, thereby resulting in large current conduction.  An external oscillating signal is superimposed on the high current resulting in a high power output.
Patent CA-2109600-C (CA)
Inventor: FLUGGER RAY T
IPC: A01K1/04
Filed: 1991-05-14
Granted: 2002-09-03
Abstract: A tangle-free tether post assembly for tether animals which includes a post (21) having a lower end (22) adapted to be buri-ed in the ground, and upper end (23) formed to project above the ground. A  tether securement assembly (26) is mounted on the upper end (23) of the post (21) at a spaced distance above the ground. The tether securement assembly (26) is positioned vertically above a rotatable sleeve (28) which also is mounted on the post (21) so that the combination of securement assembly (26) and sleeve (28) rotation ensures tangle-free tethering of animals by means of a tether line (27). A ground anchor (37) is also provided on the tether post assembly which may be used to anchor the assembly and remove the same from the ground without digging up the post (21).
Patent CA-2110332-C (CA)
Title: Coating drum for cooked pasta
Inventor: NORMAN CARL M
IPC: A23L7/196
Filed: 1993-11-30
Granted: 2004-03-30
Abstract: A double walled drum of concentric cylinders having end seals and insulation between the cylinders. The drum is open at both ends and rotates on its center longitudinal axis which is pitched from the horizontal with the entrance on the high side. Diameter restrictions at the entrance and discharge ends of the drum increase product residence time. Lifters at the entrance end discharge end push flexible strandular food subject to microbial spoilage such as strands of cooked pasta away from the entrance and out the discharge. Pins are mounted perpendicular to the inner cylinder wall and point to the central axis of the drum. Liquids such as acid and oil are sprayed onto the food in the drum from a spray bar or spray manifold. The pins continuously lift and separate the strands of food while it moves through the drum, and mix the liquid and product, resulting in a uniform coating.   This process and apparatus produce a uniformly coated flexible strandular food such as spaghetti with minimal temperature loss.   The food is free flowing arid not tangled at the discharge of the drum. Surges from upstream equipment are suppressed, producing a uniform flow to downstream equipment.
Patent CA-2111352-C (CA)
Title: Electrical connectors
Inventor: JONES KEITH HENRY
IPC: H01R4/24
Filed: 1992-06-03
Granted: 2001-01-02
Abstract: An insulation displacement contact comprises first and second contact portions each of which comprises a cantilevered split beam. The upper split beam, which receives insulated wires, comprises a pair of types which are folded about the axis of a slot separating the types such that the internal angle between the tynes is approximately 90.degree.. The width of the tynes is larger than that of prior art devices resulting in increased stiffness and the length of the tynes is sufficiently long to receive two wires therebetween. The contacts are mounted in a housing which includes a plurality of teeth provided with means for retaining lugs an the end of the tynes to ensure bowed opening of the tynes on insertion of a wire. The contacts are arranged along the central axis of the housing such that the folded tynes of alternate contacts extend on opposite sides of the central axis.
Patent CA-2112736-C (CA)
Title: Image reading device
Inventor: NAKAI TAKEHIKO
IPC: G07D7/20
Filed: 1993-12-31
Granted: 2001-06-19
Abstract: This invention provides an image reading device capable of precise detection of the optical signal over a wide wavelength range, by forming a photoelectric converting unit for converting the visible light into an electrical signal and a photoelectric converting unit for converting the invisible light into an electrical signal, in monolithic manner on a single semiconductor chip.
Patent CA-2113417-C (CA)
Inventor: HODGES C DOUGLAS
IPC: G06F9/06
Filed: 1993-12-17
Granted: 2000-02-22
Abstract: A method and system for aggregating objects within a computer system are provided. In a preferred embodiment, the method aggregates an enclosed object within an enclosing object. The enclosed object has an object management interface and an external interface, while the enclosing object has a controlling object management interface. Each interface exposed to a client by the aggregate object has a query function member for receiving an identifier of an interface and for returning a reference to the identified interface. A preferred method creates an instance of the enclosing object. The query function member of the controlling object management interface of the enclosing object receives an identifier of an interface exposed by the enclosing object and returns a reference to the exposed interface. A preferred method also creates an instance of the enclosed object. The query function member of the external interface of the enclosed object receives an identifier of an interface, invokes the query function member of the controlling object management interface of the enclosing object passing the received identifier, and returns the reference returned by the invoked query function member of the controlling object management interface of the enclosing object as a reference to the identified interface.
Patent CA-2113519-C (CA)
Title: Passive by-pass for heat exchangers
Inventor: SO ALLAN K
IPC: F28D1/03
Filed: 1994-01-14
Granted: 1999-06-08
Abstract: A heat exchanger is disclosed for automotive lubricants and coolants wherein the heat exchanger has a calibrated bypass orifice located therein to maintain the flow therethrough at all times, particularly during cold flow operation, or high pressure transient  conditions  such as  at  engine  start-up.  The  heat exchanger has a housing defining a fluid inlet chamber and a fluid outlet chamber. A separator is located between the inlet and outlet chambers and heat exchange passages  are  located between and communicate with the inlet and outlet chambers. The separator has a calibrated bypass orifice therethrough for the continuous flow of fluid between the inlet and outlet chambers bypassing the heat exchange passages.
Patent CA-2121738-C (CA)
Title: Apparatus and method employing fast polarization modulation to reduce effects of polarization hole burning and/or polarization dependent loss
Inventor: HEISMANN FRED LUDWIG
IPC: H04B10/135
Filed: 1994-04-20
Granted: 1998-07-14
Abstract: The effects of polarization dependent hole burning and/or polarization dependent loss are reduced by modulating the state of polarization (SOP) of an optical signal being launched into the transmission path periodically between first and second states of polarization of at least one pair of orthogonal states of polarization. Ideally, the launched modulated signal should spend equal time intervals in both states of the orthogonal pair. In one exemplary embodiment, the SOP is modulated such that it moves along a great circle on the Poincare' sphere. In another exemplary embodiment, the SOP is modulated such that it traces a complete great circle on the Poincare' sphere. In a preferred embodiment, a complete great circle is traced at a uniform speed on the Poincare' sphere.
Patent CA-2124621-C (CA)
Inventor: PARTRIDGE B WARING III
IPC: H04M11/00
Filed: 1994-05-30
Granted: 1999-12-28
Abstract: A method and apparatus for concurrent communication of analog information and digital information. In general terms, when the communication channel is viewed as a multi-dimensional space, the digital information signal is divided into symbols, and the symbols are mapped onto the signal space with a preset distance between them.  The analog signal, generally limited in magnitude to less than the distance separating the symbols, is converted to component signals and added (i.e., vector addition) to the symbols. The sum signal is then transmitted to the receiver where the symbols are detected and subtracted from the received signal to yield the analog signal components. The transmitted analog signal is recreated from those components. Both half duplex and full-duplex operation is available in accordance with this invention.
Patent CA-2130066-C (CA)
Inventor: KREMER WILHELM
IPC: H04L12/46
Filed: 1994-08-12
Granted: 1999-09-21
Abstract: The possibility of passing off apparent "good" higher level digital signals that may include corrupted or failed lower level digital signals because of inter-ring grooming of the lower level digital signals from a bidirectional line-switched ring to a path-switched ring and vice versa which employ first and second shared nodes is minimized by dual feeding communications circuits from the bidirectional line-switched ring to the path-switched ring and vice versa via the shared nodes. An inter-ring groomed communications circuit is provisioned from a secondary ring node in the line-switched ring of one of the shared nodes (secondary communications circuit) to be supplied to a primary ring node in the other of the shared nodes of the line-switched ring. A replica of the secondary communications circuit is demultiplexed to obtain the lower level digital signals, which are evaluated on a pair-wise basis with corresponding lower level digital signals from the primary ring node. The least corrupted of the evaluated lower level signals are selected to be combined into a new primary communications circuit which is to be inserted in the line-switched transmission path. An inter-ring groomed communications circuit is provisioned from a secondary ring node of one of the shared nodes in the path-switched ring to be supplied to a primary ring node in the other shared node of the path-switched ring. The secondary communications circuit is demultiplexed to obtain the lower level signals which are evaluated on a pair-wise basis with lower level signals from a corresponding primary communications circuit to determine which of the lower level signals are least corrupted. The selected least corrupted lower level signals are combined into a new primary communications circuit which is then dual fed in the path-switched ring primary ring node.
Patent CA-2134116-C (CA)
Inventor: GARTLAND MATTHEW
IPC: B44C1/26
Filed: 1993-04-23
Granted: 2006-03-21
Abstract: A panel (1) comprising a front surface (2) shaped to simulate a framed-up panel is manufactured by forming a main panel member (4) from a main substrate (7) laminated with a main veneer sheet (10).  A front surface (5) of the main panel member (4) informed and shaped to simulate a pair of stiles (12) and an infill panel (14) and to define rail receiving surfaces (IS) at opposite ends of the infill panel (14). Rails (16) each formed from a secondary substrate (20) laminated with a secondary veneer sheet (24) are bonded to the rail receiving surfaces (15) and join the stiles (12).
Patent CA-2135613-C (CA)
Inventor: SAURWEIN ALBERT C
IPC: F16K15/00
Filed: 1993-03-12
Granted: 2005-01-04
Abstract: A fluid pressure-intensifying apparatus of the double-acting type has end check valve assemblies (25, 25a). Each assembly has an inner low pressure poppet (100) communicable with the high pressure chamber (30) of the apparatus, and an outer high pressure ball poppet (110) communicable with a high pressure fluid outlet line (57). The check valve assembly (25) is designed for service accessibility without having to dismantle the intensifier. The apparatus includes a cylindrical housing (10) within which low and high pressure piston assemblies (28, 30, 30a) are confined by threaded end rings (12, ~12a) under compression.
Patent CA-2135835-C (CA)
Inventor: NAGAHAMA YUJI
IPC: A47L23/22
Filed: 1994-11-15
Granted: 2003-12-23
Abstract: A separate mat for rent comprising a mat body made up of a mat portion having mat piles implanted on the front surface of a base fabric and an elastomer backing blended with a magnetic powder on the back surface, and a thick frame-like peripheral portion of an elastomer; and a base which supports the mat body and has a magnet rubber spread on a support surface. In the mat body, the back surface of the outer periphery of the mat portion and the upper surface of the peripheral frame of the mat are superposed one upon the other and ,joined together as a unitary structure. The base rubber is inserted in the back side of the mat body. Therefore, no step is formed between the mat body and the base yet the two are adhered very strongly. Besides, no wrinkles develop on the mat surface and homogeneous adhesion is accomplished. The mat is further excellent in fixing performance and stability, and can be easily attached or detached, and is very light in weight compared with the mats of the unitary structure.
Patent CA-2148010-C (CA)
Title: Heating process for chemical reaction vessels employing microwave energy
Inventor: BUTWELL ROBERT J
IPC: B01J19/12
Filed: 1995-04-27
Granted: 1997-12-30
Abstract: A method and apparatus is provided for heating a reaction vessel for use in industrial applications. The apparatus includes a microwave generating device coupled to a waveguide having a means for causing multiple microwave propagation modes prior to directing the microwave into the reaction vessel. The waveguide is mounted to the reaction vessel and directs the microwave in an inclined-angular fashion, thereby generating a helical reflection pattern within the vessel's interior and providing a uniform heating of said interior. An isolation means is also provided, positioned between the microwave generating  device and the reaction vessel, which incorporates a quartz window and a sealing means capable of compensating  for any disparity in thermal expansion coefficients between the quartz and the material used to house the quartz.
Patent CA-2148953-C (CA)
Inventor: PRIEST JOHN F
IPC: G01B17/02
Filed: 1995-05-09
Granted: 2002-02-05
Abstract: The invention is a method of determining the thickness of a casing in a wellbore penetrating an earth formation using group delay determined casing resonance extracted from processed reflection signals from an acoustic pulse-echo imaging tool. A first Fourier transform coefficient series is calculated from the digitized reflection signal. Individual samples of the reflection signal are multiplied by their sample index values to obtain a modified digitized data string. A second Fourier transform coefficient series is calculated from the modified digitized data. The complex group delay function is calculated directly from the first and second Fourier coefficient series.
Patent CA-2150546-C (CA)
Title: Derive de carbostyryle inhibant la production d'interleukine-8
Inventor: MATSUDA TAKAHIDE
IPC: C07D215/22
Filed: 1994-10-17
Granted: 2004-11-09
Abstract: La présente invention concerne des agents inhibant la production d'interleukine-8 et l'activation granulocytaire, ainsi qu'un nouvveau procédé pour guérir des maladies inflammatoires. Ces agents contiennent comme principe actif un dérivé de carbostyryle représenté par la formule (I), ou bien un sel pharmaceutiquement acceptable de celui-ci. Dans ladite formule, R est un atome d'halogène, le site de substitution d'une chaîne latérale de formule (A) est la position 3 ou 4 du squelette de carbostyryle; et la liaison carbone-carbone entre les positions 3 et 4 du squelette de carbostyryle est une liaison simple ou une liaison double.
Patent CA-2152750-C (CA)
Title: Extruded license plate mounting bracket for multiple license plates
Inventor: HUNTLEY ROBERT I
IPC: B60R13/10
Filed: 1995-06-27
Granted: 2005-01-04
Abstract: A license plate mounting bracket (10) for mounting of at least one license plate (11) thereto including an elongated frame member (12) providing a mounting surface (13) formed for supportably seating the license plate (11) thereon. The frame member (12) includes a mounting groove (16) formed in the mounting surface (13) which is dimensioned for sliding receipt of an enlarged head (17) of a releasable fastener (15). This sliding receipt enables sliding movement along the groove (16) at a plurality of positions when the fastener (15) is released relative to the mounting surface (13). Further, the groove (16) is formed to secure the head (17) of the fastener (15) in a manner enabling tightening of the fastener (15) at the plurality of positions to secure the license plate (11) to the mounting surface (13) at a desired location therealong.
Patent CA-2154068-C (CA)
Title: Cooling and thickness control for extruded products
Inventor: CREE ROBERT E
IPC: B29C48/10
Filed: 1994-12-01
Granted: 2005-10-25
Abstract: Automatic thickness profiling for use in blown film and other extrusion lines.  The automatic system is integrated into an air cooling ring device either external (24) and/or internal (30) to the bubble or extrusion (22). It comprises one or more high resolution circumferentially variable annular air outlets (62) which act to cool the molten resin in a circumferentially variable way. Thin slide plates (72) remain fixed in place except when adjusted to open or close the local annular air outlet by the action of at least one scanning actuator (99). The actuator is positioned by control signals generated by a control computer (106) which calculates the appropriate local dimension of the variable air outlet in response to circumferential position correlated with thickness variations detected by a film thickness sensor (102). The film thickness above the frost line is mechanically scanned around the extrusion. In the case of making blown products with internal cooling, counteracting adjustments are made as local flow areas of the internal cooling device are changed to maintain constant the entrapped air volume. The novel actuation system is also shown to be useful in locally adjusting a finely segmented air lip. A method of correlating thickness changes with respective cooling zones is also disclosed.
Patent CA-2155619-C (CA)
Title: Shaped masticating agents containing paraffin
Inventor: BUDING HARTMUTH
IPC: C08K5/375
Filed: 1995-08-08
Granted: 2004-10-19
Abstract: This invention relates to shaped, non-dusting, non-sticking, free-flowing masticating agents based on 2,2'-dibenzoamidodiphenyl disulphide and paraffins having a solidification point in the range from 50 to 85°C, a needle penetration of 8 to 25 in 1/10 mm, a viscosity of 2 to 10 mm2/s. The masticating agents according to the invention are used to reduce the viscosity of rubbers containing double bonds and are customarily used in quantities of 0.01 to 3 parts by weight.
Patent CA-2175781-C (CA)
Title: Process for the production of petrochemicals
Inventor: ACHARYA DIVYANSHU R
IPC: C07C51/215
Filed: 1996-05-03
Granted: 1999-08-31
Abstract: A petrochemical is produced by the vapor phase reaction of a hydrocarbon with air in the presence of a suitable catalyst. The petrochemical is removed from the reactor effluent, and part or all of the remaining petrochemical-free gas stream is passed through a hydrocarbon-selective adsorbent, which adsorbs hydrocarbon from the gas stream, leaving a hydrocarbon-depleted waste gas. Hydrocarbon is purged from the adsorbent with air, and the air-hydrocarbon mixture is recycled to the partial oxidation reactor. The purge air, and preferably both the purge air and the petrochemical-free gas stream are dried by passage through beds of zeolite 3A prior to being introduced into the hydrocarbon-selective adsorbent, and the bedsof zeolite 3A are regenerated by passing heated hydrocarbon-depleted waste gas therethrough.
Patent CA-2179217-C (CA)
Title: Land-line supported private base station operable in a cellular system
Inventor: KHAN MUZIBUL H
IPC: H04M1/57
Filed: 1996-06-17
Granted: 2000-06-27
Abstract: A private base station supports the registering or multiple mobile stations and provides a personalized call delivery feature for each registered mobile station. Each mobile station registers separately with the base station when within communication range of the base station. When registration of a mobile station with a private base station is performed, the private base station communicates mobile station information to a base station location register along with assignment of a local unique address for each one of the multiple mobile stations registering with the private base station. When the private base station receives an incoming call for a particular one of the mobile stations, this local unique address associated with the particular station is provided by the base station location register as part of the incoming call information also received by the base station thereby allowing the base station to distinctively alert the particular mobile station. By obtaining a local unique address for each of the mobile stations, the private base station is also able to advantageously offer various intelligent features which are personalized according to customer needs. For example, a calling party may have his or her name displayed on the reached mobile station for the convenience of the user at this mobile station.
Patent CA-2181890-C (CA)
Inventor: KOSKAN LARRY P
IPC: C08G69/10
Filed: 1995-01-26
Granted: 2007-05-22
Abstract: Polyaspartic acid is produced by thermal condensation of ammonium maleate derived from maleic acid and ammonia. Solid ammonium maleate in particulate form is heated to a temperature of at least about 170 °C to effect thermal condensation to a polysuccinimide which is then base hydrolyzed to a polyaspartic acid salt.
Patent CA-2183108-C (CA)
Title: Algae control in swimming pools
Inventor: HUDSON PAUL
IPC: C02F1/50
Filed: 1996-08-12
Granted: 2006-10-24
Abstract: Disclosed herein is a composition for controlling algae in swimming pools , comprising a swimming pool disinfectant material in a form suitable for handling and a zinc constituent, said composition being in proportions safe for exposure to swimming pool users.