baber/WOPTO huggingface dataset:
Patent CA-2205890-C (CA)
Title: Driving apparatus for an active addressed display
Inventor: BARRETT RAYMOND LOUIS JR
IPC: G02F1/133
Filed: 1995-11-22
Granted: 1999-09-21
Abstract: A display system (500) processes an input signal to generate an image. The input signal includes successive frames of data defining lines which include image values and have a line direction. A display (100) for displaying the image has second electrodes (104) which are in a direction corresponding to the line direction. A video memory (640) which stores a frame of data includes a single line buffer (602) and a single frame buffer (608). A controller (622) controls storage of the frame of data into the video memory (640) and generates a predetermined image independent function during a time slot. A  calculation engine (632) computes an image dependent output signal during the time slot which has values. Each of the values is determined from the predetermined image independent function and image values from one of the lines stored in the video memory (640).
Patent CA-2206492-C (CA)
Inventor: ANDERSON EDWIN A
IPC: E21B31/113
Filed: 1995-10-30
Granted: 2001-07-24
Abstract: A jar (10) includes a plurality of pistons (16) secured together to form a piston assembly (23). Piston assembly (23) is movable axially in response to an actuating pressure differential between the jar bore (17) and the borehole (19). Biasing spring (28) biases piston assembly (23) to return to a closed position when the actuating pressure differential is reduced by a predetermined amount. Piston assembly (23) forces a hammer member (32) and a movable anvil portion (30A) axially to cock the jar in response to the applied actuating pressure differential. When the pressure differential is reduced, biasing spring (28) moves anvil portion (30A) against anvil support portion (30B). Detent assembly (47) temporarily limits the velocity of hammer member (32) towards movable anvil portion (30A) after the pressure differential is reduced. Compressed nitrogen (64) in nitrogen chamber (31) biases hammer member (32) towards anvil portion (30A) to deliver a jar impact.
Patent CA-2215400-C (CA)
Inventor: EPSTEIN ARTHUR J
IPC: H05B33/26
Filed: 1996-03-12
Granted: 2002-09-17
Abstract: Dispositifs bipolaires électroluminescents (10) comprenant un émetteur de lumière (15) constitué d'un matériau photoémetteur électroluminescent organique au contact d'un matériau isolant. L'émetteur de lumière (15) est au contact de deux électrodes (12, 18) maintenues écartées l'une de l'autre. L'émetteur de lumière (15) peut être constitué d'un mélange intégral de matériaux luminescents et de matériaux isolants ou de couches distinctes de matériaux luminescents et de matériaux isolants. Le dispositif fonctionne avec un courant alternatif (24) de moins de 24 volts et, dans certains cas, de moins de 5 volts. Avec une excitation par courant alternatif, le dispositif produit une lumière modulée en fréquence ou en amplitude. Avec une excitation par courant continu, le dispositif fonctionne aussi bien sous polarisation directe qu'inverse.
Patent CA-2218367-C (CA)
Inventor: FRITZINGER DANIEL D
IPC: A63G25/00
Filed: 1995-09-14
Granted: 2001-11-20
Abstract: A child's riding vehicle employing a unique and novel gear assembly and engagement structure includes a frame (12) having plural wheels, and a gear assembly (40) fixed on the frame which includes an output gear (54) non- rotatably connected to at least one of the vehicle's wheels. A motor (66) on  the frame is mounted on an arm (68) which is movable between an engaged position (A) and a disengaged position (B), and a segment gear (62) mounted on the frame adjacent the gear assembly engages the motor's pinion (66a) and defines a path between the engaged and disengaged position. Unique and novel  gear tooth profiles are employed in both the gear assembly and the engagemen t structure to prevent the same from jamming during transition between the engaged and disengaged positions and vice versa.
Patent CA-2233952-C (CA)
Inventor: YAMADA SHINICHI
IPC: G02F1/1339
Filed: 1997-08-01
Granted: 2006-03-28
Abstract: The present invention provides a liquid crystal display element substrate having spacers fixed in non-display regions on the liquid crystal display element substrate, where the load compression displacement of these spacers in terms of a compression stress of 0.5 to 0.6 GPa is from 0.001 to 1 .mu.cm/mN. Further, it provides a liquid crystal display device which is characterized in that, in a liquid crystal display device where a liquid crystal layer is held between two liquid crystal display element substrates, at least one of these liquid crystal display element substrates is an aforesaid liquid crystal display element substrate. As well as realizing a sufficient cell gap the present invention has the effect that, by maintaining a uniform cell gap within the screen, the problems of a lowering in the display quality due to change in the cell gap and the generation of bubbles at the time of low temperature are resolved. The liquid crystal display element substrate of the present invention and t he liquid crystal display device which employs it may be used as the display screens of personal computers, word processors, engineering work stations, navigation systems, liquid crystal televisions, videos and the like, and they are also suitable for use in liquid crystal projection, etc. Further, in thefields of optical communication and optical data processing, they are suitable for use as a spatial light modulator employing liquid crystals.
Patent CA-2235419-C (CA)
Title: Microorganisms and processes for the fermentative preparation of l-cysteine, l-cystine, n-acetylserine or thiazolidine derivatives
Inventor: LEINFELDER WALFRED
IPC: C12N15/09
Filed: 1998-06-16
Granted: 2009-06-02
Abstract: Microorganisms and processes for the fermentative preparation of L-cysteine, L-cystine, N-acetylserine or thiazolidine derivatives. The microorganism strain which is suitable for the fermentative preparation of L-cysteine, L--cystine, N-acetylserine and/or thiazolidine derivatives, overexpresses at least one gene which encodes a protein which is directly suitable for secreting antibiotics, or other substances which are toxic for the microorganism, out of the cell.
Patent CA-2235727-C (CA)
Title: Low temperature pavement binders and methods of their preparation
Inventor: WILLIAMSON KENNETH E
IPC: C08L95/00
Filed: 1998-05-25
Granted: 2008-12-23
Abstract: The invention relates to novel sulfonated polymer modified asphalt-diluent oil binder compositions having enhanced low and high service temperature performance properties and the method of making them, and to road paving asphalts containing them.
Patent CA-2238600-C (CA)
Inventor: KUSASE SHIN
IPC: H02K19/22
Filed: 1998-05-25
Granted: 2000-07-04
Abstract: A stator winding has a plurality of conductor members forming coil ends, and each of the conductor members of the coil ends is hardened and heat treated to have hardness which changes along the length of conductor members. Therefore, the stiffness of the coil ends changes and resonant vibration of the stator can be reduced.
Patent CA-2240928-C (CA)
Title: Recipient pour ranger des comprimes
Inventor: RONLEV ERIK
IPC: B65D41/04
Filed: 1996-11-28
Granted: 2006-03-28
Abstract: Récipient pour comprimés constitué d'une partie contenant (1) et d'un couvercle (8, 9) dont la fermeture s'effectue par vissage. Pour faciliter le dévissage du couvercle pour les personnes ayant une motricité réduite, les filets (3, 4, 5, 10, 11, 12) du pas de vis sont conçus de manière à ne nécessiter qu'un angle de révolution faible, correspondant à 270 DEG , à +/- 45 DEG près, pour assurer l'étanchéité malgré la faible longueur de filetage. Le rebord externe (27) de la partie contenant (1) est conçue pour venir au contact du couvercle (8, 9) selon trois lignes circulaires d'étanchéité (A, B, C).
Patent CA-2248154-C (CA)
Title: Emploi de polymeres comme biocides
Inventor: STEUERLE ULRICH
IPC: A01N61/00
Filed: 1997-03-04
Granted: 2006-07-11
Abstract: L'invention concerne l'emploi, comme biocides, de polymères contenant, incorporés par polymérisation, (a) entre 0,1 et 100 % en moles d'unités vinylamine ou d'unités éthylènimine; (b) entre 0 et 99 % en moles d'unités d'au moins un monomère choisi dans le groupe comprenant les amides d'acide N-vinylcarboxylique à chaîne ouverte, le formiate de vinyle, l'acétate de vinyle, le propionate de vinyle, l'alcool de vinyle, l'éther vinylique d'alkyle C1-C6, les acides carboxyliques C3 - C8 monoéthyléniquement insaturés, leurs esters, nitriles, amides, et anhydrides, la N-vinylurée, les N-vinylimidazoles et les N-vinylimidazolines; et (c) entre 0 et 5 % en moles d'unités de monomères présentant au moins deux doubles liaisons éthyléniquement insaturées. Le total de (a), (b) et (c) en % en moles est toujours égal à 100.
Patent CA-2249256-C (CA)
Inventor: TUCKER JASPER JAMES
IPC: B62D55/096
Filed: 1998-09-30
Granted: 2004-01-20
Abstract: An endless track unit for a tracked vehicle has guide wheel assemblies which support the track. A guide wheel assembly includes a hub adapted to be rotatably mounted on an axle, the hub having axially-spaced outer flanges of an outer diameter no greater than a first diameter. A central flange on the hub extends radially outwardly beyond the first diameter. A pair of outer axially-spaced wheels are mounted on the outer flanges and a central ring-like wheel having an inner diameter greater than the first diameter is secured to the central flange. The hub is generally an integral, or unitary, element adapted to be mounted on an axle and supports all three wheels. The wheels are substantially rigid rings, and each has an elastomeric covering formed about its periphery for cushioned engagement with the track.
Patent CA-2251372-C (CA)
Inventor: JEONG DEOG-KYOON
IPC: H04N7/52
Filed: 1997-05-01
Granted: 2002-01-29
Abstract: A method and apparatus is disclosed that receives a multi-channel digital serial encoded signal and converting it into a synchronized set of binary characters. A charge pump phase-locked loop receives a transmitted reference clock and derives a multi-phase clock from the reference clock. The multi-phase clock is used to control a plurality of multi-bit block assembly circuits. Each assembly circuit receives one channel of the digital signal and produces a multi-bit block or character. The multi-bit block assembly circuit includes an oversampler, a digital phase-locked loop and a byte synchronizer.  The oversampler ovesamples the received digital signal under control of the multiphase clock and produces a sequence of oversampled binary data. The digital phase-locked loop receives the oversampled data and selects samples from it depending on the skew characteristics of the sample. The byte synchronizer assembles a sequence of selected bits into a bit block, or character. An interchannel synchronizer receives as input the characters produced by each of the multi-bit block assembly circuits, and selectively delays output of the received characters in order to synchronize the characters of each channel with one another.
Patent CA-2251397-C (CA)
Title: Method and apparatus for forward link rate scheduling
Inventor: TIEDEMANN EDWARD G JR
IPC: H04B7/26
Filed: 1998-02-10
Granted: 2007-10-30
Abstract: In a communication system capable of variable rate transmission, scheduling of high speed data transmission improves utilization of the forward link and decreases the transmission delay in data communication. Each remote station (6) is assigned one primary code channel for the duration of the communication with a cell. Secondary code channels of various types and transmission capabilities can be assigned by a channel scheduler (12) for scheduled transmission of data traffic at high rates. Secondary code channels are assigned in accordance with a set of system goals, a list of parameters, and collected information on the status of the communication network. Secondary code channels can be grouped into sets of secondary code channels. Data is partitioned in data frames and transmitted over the primary and secondary code channels which have been assigned to the scheduled user.
Patent CA-2252223-C (CA)
Inventor: RANCH LEONARD WESLEY
IPC: B60R11/00
Filed: 1998-11-16
Granted: 2005-05-17
Abstract: A block heater cord is often left exposed outside a vehicle. In this invention, a storage system is provided to securely fasten the electrical prongs in a rectangular device fastened to the bumper of a vehicle. The device may have illuminating features exposing the receptacle holes for the electrical prongs to be easily inserted and safely stored.
Patent CA-2252496-C (CA)
Inventor: SMITH STUART B
IPC: C08J9/04
Filed: 1997-04-23
Granted: 2002-10-08
Abstract: A polyurethane composition to provide a rigid polyurethane foam suitable for  use as a core material in a composite laminate and which polyurethane composition includes an additive compound or oligomer-prepolymer having hydroxy groups for reaction with the diisocyanate of the polyurethane or whi ch has been prereacted with a diisocyanate and which contains after the polyurethane reaction ethylenically unsaturated groups, like allyl or acryli c groups, to react with an unsaturated polyester resin. The invention includes  the organic additive oligomer-prepolymer and the hybrid polyester-rigid polyurethane laminates.
Patent CA-2255576-C (CA)
Inventor: SHREESHA VASANTH
IPC: G06K7/14
Filed: 1997-06-03
Granted: 2002-01-22
Abstract: Un système permettant d'effectuer l'acquisition et le décodage à grande vitesse d'un symbole de code à barres localise les candidats de codes à barres potentiels dans une image balayée et filtre les candidats pour éliminer les données non valides. Le système permet de concentrer les ressources informatiques sur le décodage des informations qui le plus probablement décrivent un symbole de vrai code à barres. Lorsqu'un candidat de code à barres potentiel a été localisé, le symbole de code à barres est traité pour déterminer l'orientation et la symbologie du code à barres. Chaque élément du symbole de code à barres est ensuite localisé même si tous les éléments ne sont pas visibles dans l'image d'origine, et le symbole de code à barres est décodé en fonction de la symbologie spécifique.
Patent CA-2257305-C (CA)
Inventor: POSAGE GARY W
IPC: A61K47/30
Filed: 1997-06-10
Granted: 2006-04-04
Abstract: The present invention relates to a method of marking the surface of solid rapidly disintegrating dosage forms using a non-contact marking technique such as laser imprinting and ink-jet printing.
Patent CA-2262073-C (CA)
Inventor: WU XIAO YU
IPC: C08L1/28
Filed: 1999-02-16
Granted: 2009-03-17
Abstract: Described is a composite polymeric system to provide enhanced stimuli-responsiveness. The first aspect provides particles where the particles are made of stimuli-responsive polymer which responds to various stimuli such as temperature and pH change. Incorporated with this particle is a second polymer which in turn is relatively insensitive to stimuli. The invention can be potentially applied to other systems comprising a swellable hydrogel and a nonswellable hydrophobic polymer.
Patent CA-2264796-C (CA)
Inventor: EHRKE LANCE A
IPC: G08C17/02
Filed: 1997-09-04
Granted: 2004-06-01
Abstract: Système de transmission de données à lecture automatique de compteur (20), auquel sont intégrés un codeur numérique (22) et un émetteur-récepteur hertzien bidirectionnel que l'on peut rattacher à un large éventail de compteurs de services publics dans la collecte des données et la gestion de l'information. Le codeur et l'émetteur-récepteur intégrés envoient les données relatives à la consommation via un réseau local bidirectionnel à 900 MHz à étalement du spectre (32), à un noeud de transmission éloigné (24). Ce noeud transmet les données à un fournisseur de service public (30), via un grand réseau commercial fixe (34). Le fournisseur de service peut aussi demander des données au noeud de transmission via le même réseau étendu fixe.
Patent CA-2267581-C (CA)
Inventor: DAVIS RALPH L
IPC: A61M39/02
Filed: 1999-03-31
Granted: 2005-07-12
Abstract: In preferred aspects, the present invention comprises a self priming needle- free "Y"-adapter for use with intravenous delivery systems. The "Y"-adapter comprises a "Y"- shaped housing having an inlet passageway, an outlet passageway, and an injection access passageway. Each of the three passageways has an interior end and an exterior end. An inlet port is located at the exterior end of the inlet passageway. An outlet port is located at the exterior end of the outlet passageway. An injection access port is located at the exterior end of the injection access passageway. A needle-free access device is also located in the injection access passageway adjacent to the injection access port. The interior ends of the passageways are in fluid communication and intersect with each other. In addition, the injection access passageway comprises a non-circular cross-section near its interior end. The non-circular cross-section of the interior end of the injection access passageway assists in priming the "Y"-adapter.
Patent CA-2269519-C (CA)
Inventor: SHALABY SHALABY W
IPC: C08B37/16
Filed: 1997-10-06
Granted: 2007-01-09
Abstract: L'invention concerne une dérivé de la cyclodextrine, dans lequel au moins 60 % des groupes hydroxy libres de ladite cyclodextrine sont acylés avec des groupes acyles dans lesquels au moins un de ces groupes contient un groupe carboxylique libre.
Patent CA-2271359-C (CA)
Title: Acid gas fractionation
Inventor: STERNER ANTHONY J
IPC: B01D53/00
Filed: 1999-05-07
Granted: 2002-08-06
Abstract: A process to bulk separate H2S and CO2 from a sour gas by first cooling the inlet sour gas, passing the cooled sour gas through a separator and removing a liquid acid gas as a bottoms product in a fractionation tower, and then either pumping or free flowing the liquid acid gas into a disposal well. Potential sulphur deposition problems are controlled by recycling liquid acid gas to the plant inlet.
Patent CA-2272034-C (CA)
Inventor: LEEP JEFFREY A
IPC: F23N5/24
Filed: 1999-05-14
Granted: 2000-06-27
Abstract: A fuel-fired water heater has a series of control and operating components which, with electrical power being supplied to the water heater circuitry via a power switch, are electrically actuatable in a predetermined sequence to supply combustion heat to water contained in a tank portion of the water heater to return the temperature of the water to a heated setpoint temperature in response to the water temperature falling below such setpoint temperature. LED diagnostic indicating lights are wired into the water heater circuitry in a manner such that each indicating light is associated with a different one of the electrically coupled components. As the components are sequentially actuated during a water heating cycle, the LED lights are successively illuminated. If one of the components malfunctions during such heating cycle, one or more of the indicating light; remains unilluminated, with the last illuminated light being indicative of the last component in the sequence which functioned properly, thereby facilitating the ready identification of the component which malfunctioned. The LED indicating lights are supported in a single row on a housing-mounted circuit board to which electrical indicating light leads from the water heater control circuit are connected. One of the LED lights is a power indicating light and, like the other indicating lights, has a resistor in an electrical trace leading to the light. The power indicating light and its associated resistor are physically isolated from the other indicating lights and their associated resistors by an interior housing barrier wall.
Patent CA-2272378-C (CA)
Title: Procede et appareil permettant de nettoyer une surface mobile
Inventor: HARJU MATTI
IPC: D21G3/00
Filed: 1997-11-20
Granted: 2003-07-01
Abstract: Cette invention concerne un procédé permettant de nettoyer une surface en mouvement telle qu'un cylindre, un câble ou une bande de transport. Ce procédé consiste à nettoyer la surface à l'aide d'une racle, laquelle comprend plusieurs éléments (7) de racle distincts qui se déplacent dans une direction transversale par rapport à la surface à nettoyer. Cette invention concerne également un appareil qui fait appel à cette racle comprenant plusieurs éléments distincts (7), lesquels se déplacent dans une direction transversale par rapport à la surface à nettoyer de manière à ce qu'ils puissent être entretenus et réparés en cours de fonctionnement.
Patent CA-2276121-C (CA)
Inventor: AZKONA OLLACARIZQUETA MANUEL
IPC: B25B7/10
Filed: 1999-06-21
Granted: 2004-03-30
Abstract: Self-adjusting pliers, consisting of a male handle member and a female handle member with toothed jaws, sliding against each other by means of a pawl which connects them and slides in an elongated racked slot inserted in one of the toothed jaws, both handle members being joined together by a coupling link consisting of two sleeves (1), (2) which move against each other telescopically, one of them (2) pivoting on the male handle member (6) and the other on the female handle member (11); one spring (3) connecting both sleeves (1), (2) and a second spring (5) connecting one (1) of the sleeves with one (11) of the handle members.        Suitable for application in the manufacture of hand tools.
Patent CA-2276568-C (CA)
Title: Block copolymer and polymer composition comprising the same
Inventor: AKAI MAKOTO
IPC: C08L53/00
Filed: 1999-06-29
Granted: 2007-01-02
Abstract: A block copolymer comprising, in a main chain thereof, a crystalline polymer block A obtained by hydrogenation of at least 80% of unsaturated bonds of a butadiene-based polymer block having a 1,2-bond content less than 20%, a polymer block B having a glass transition point of 20 ° C or lower and a polymer block C composed mainly of a methacrylate ester unit and/or an acrylate ester unit and having a glass transition point exceeding 20 °C has good elastomeric properties, excellent weather resistance, solvent resistance and heat resistance and has good affinity with each of a polar polymer and non-polar polymer. A polymer composition comprising said block copolymer effectively exhibits the above-described characteristics of the block copolymer.
Patent CA-2283844-C (CA)
Inventor: BONNET HENRI
IPC: B65G47/84
Filed: 1998-04-29
Granted: 2004-01-27
Abstract: An automated conveyor sortation and item discharge system for sorting items of various sizes and weights to designated output destinations along a conveyor is provided. The system utilizes a discharge drum ejection mechanism mounted medially between a pair of parallel cog belt conveyors for ejecting an item such as a parcel laterally from the surface of the cog belt conveyors to an adjacent chute or slide. The discharge drum of the ejection mechanism is generally rectangular and defines convex opposing sides separated by the longer diameter of the drum. The convex sides of the discharge drum define flexible ridges for contacting an overlying parcel to be discharged from the surfaces of the cog belt conveyors. The flexible ridges enhance translation of the item or parcel by the discharge drum and serve to reduce noise caused by the impact of the discharge drum with the overlying parcel. A tapered discharge drum may be used to counteract rotation of the parcel during the discharge. A programmable controller may be provided to control the conveyor system and the discharge of items from the conveyor by the ejection mechanisms. The system is easy to repair and operates at high speeds at reduced noise levels. Also provided is a relatively flat disc intermediate a conveyor gap, which may be disassembled without disturbing the shaft to which the disc is mounted.