baber/WOPTO huggingface dataset:
Patent CA-2258772-A1 (CA)
Title: Magnetic reading devices
Inventor: MCKINNON ALEXANDER WILSON
IPC: G06K7/08
Filed: 1997-06-19
Abstract: A detector for sensing the presence of a magnetic tag having an axis of easy magnetisation, which comprises (1) either (i) a magnet or (ii) a pair of magnets arranged in magnetic opposition, the magnet or magnets being disposed so as to define a spatial region through or across which the magnetic tag is, in use, passed, the disposition of said magnet(s) and the resultant magnetic field pattern being such as to cause a change in polarity of the magnetisation of said magnetic tag in the course of its passage through a magnetic null within said spatial region; and (2) a receiver coil or coils positioned above and in proximity to one pole of said magnet (where a single magnet is employed), or positioned between said pair of magnets (where two magnets are employed) and arranged to detect magnetic dipole radiation emitted by a magnetic tag as it passes through said magnetic null with the easy axis of magnetisation of the tag oriented in the direction of travel. The receiver coils are preferably constructed as an assembly of printed circuit boards whose conductive tracks are interconnected to form a three dimensional coil having windings in the various layers.
Patent CA-2259201-A1 (CA)
Inventor: LAPINSKI MARK
IPC: C10G11/05
Filed: 1997-07-11
Abstract: A catalytic cracking catalyst and catalytic cracking process for cracking the 650°F+ portion in a heavy feed to lighter products. The catalytic cracking catalyst contains a Y zeolite in a silica binder that is substantially free of catalytically active alumina. The silica binder contains silica gel as a component.
Patent CA-2260698-A1 (CA)
Inventor: BUETTELMANN BERND
IPC: A61K31/5383
Filed: 1999-02-05
Abstract: The present invention relates to the use of pyrrolidine and piperidine derivatives of the general formulae (see fig. I)         and      (see fig. II) and wherein R1 and R2 are, independently from each other, hydrogen, lower alkoxy, hydroxy, halogen, -CONH2 or -C(O)O-lower alkyl; or taken together are -O-CH2-O-;      R3 and R4 are, independently from each other, hydrogen, lower alkoxy, benzyloxy, halogen, hydroxy, -CONH2 or -SCH3; or taken together are -O-CH2-O-;      R5 is hydrogen or lower alkyl;      X and Y are, independently from each other -CH(OH)-, -(CH2)n-, -C(O)- or -CH(lower alkoxy)-; and m, n and p are 1 or 2; and to their pharmaceutically acceptable addition salts for the treatment of diseases caused by overactivation of NMDA receptor subtypes.
Patent CA-2263918-A1 (CA)
Title: Voltage conversion circuit for a laser based distance measurement and ranging
Inventor: DUNNE JEREMY G
IPC: H02M3/155
Filed: 1997-08-21
Abstract: A voltage conversion circuit (50) for transforming an input voltage level at an input voltage node (62) to a relatively higher output voltage level at an output voltage node (93) with respect to a common reference voltage node (56) includes an inductor (90) coupling the input voltage node (62) to the output voltage node (93) and a signal source (52), such as a linear timer integrated circuit ("IC") supplying an output signal (80) having alternating first and second states. A bipolar switch (58) having first and second current carrying terminals and a control terminal (84), its first current carrying terminal coupled to the output voltage node (93), and its control terminal connected to receive the output signal (80) from the IC. A MOS switch (60) having first and second voltage carrying terminals and a gate terminal, its first voltage carrying terminal coupled to the common reference voltage node (56), its second voltage carrying terminal coupled to the second current carrying terminal of the bipolar switch (58) and its gate terminal coupled to receive the output signal (OUT at 80) from the signal source (IC). At least one diode (86) couples the control terminal of the bipolar switch (58) to the common reference voltage node (56).
Patent CA-2265014-A1 (CA)
Inventor: LAFOND DANIELLE
IPC: B01F11/00
Filed: 1999-03-05
Abstract: A blending device for mixing the contents of a plastic bag comprises a casing defining a mixing chamber in which are disposed paddles or the like for acting on the bag and mix the contents thereof, and having a pivotable door for providing access to the chamber and positioning a bag and its contents in this chamber. The door includes a lower container which extends inwardly towards the casing such as to be located in the casing's mixing chamber when the door is a closed position such that spillage resulting from a rupture of the bag in the blending machine is collected in the door's bottom container. Preferably, the door can be easily, completely disconnected from the casing for facilitating the cleaning thereof, for instance following a collection by the container thereof of a spillage.
Patent CA-2265379-A1 (CA)
Inventor: HARR RUDOLPH
IPC: A01F7/06
Filed: 1999-03-12
Abstract: A durable rake specifically designed for grooming playing fields, such as baseball diamonds. The rake may be used to scarify, compact and smooth infield playing surfaces, such as base lines, pitcher's mounds and home plate areas. The rake includes a rigid, elongated grooming member having a flat bottom surface and opposed first and second longitudinal edges.      At least the first longitudinal edge is bevelled. A plurality of T-shaped grooming tines are spaced along the length of the second longitudinal edge and project outwardly therefrom. The tines located at end portions of the grooming member project for a shorter distance than the remaining tines to prevent snagging. An elongated handle is securable to a top surface of the grooming member.
Patent CA-2265987-A1 (CA)
Inventor: VESPA ANTHONY J
IPC: H01Q3/24
Filed: 1997-09-15
Abstract: An active antenna system which has a plurality of antenna elements arranged in a column with each element or subarray of elements integrated with an amplifier and other beam forming components. A separate amplifier and filter are disposed immediately adjacent and connected to each of the antenna elements or a subarray of antenna elements and a separate combiner/divider is connected to each of the amplifiers. The antenna elements, amplifier and filter are disposed on a common support. A base station is connected by the feed cables and is remote from each amplifier. A first group of the antenna elements with low power amplifiers forms a transmitting antenna system and/or a second group of the active antenna elements with low noise amplifiers forms a receiving antenna system. A variable attenuator and a variable phase shift circuit can be integrated with each amplifier and can be used for beam shaping and electronic beam pointing. For diversity combining, spatially separated or polarization diverse active antennas are used. For polarization diverse active antennas, implementation involves a shared column or two colocated orthogonally polarized columns.
Patent CA-2268306-A1 (CA)
Title: Dispositif electronique de puissance et ensemble electronique de puissance comprenant un tel dispositif
Inventor: CETTOUR-ROSE JACQUES
IPC: H02M7/00
Filed: 1999-03-31
Abstract: Ce dispositif électronique de puissance comprend au moins un sous-ensemble (6, 8, 10) supportant des modules de puissance (6B, 8B, 10B), une batterie de condensateurs (4) mise en communication avec une alimentation électrique étant connectée auxdits modules de puissance, ladite batterie comprenant un ou plusieurs condensateurs (12) disposés en parallèle entre deux plaques de connexion (14, 16). Le ou chaque sous-ensemble (6, 8, 10) possède une première face (6', 8', 10') supportant au moins un premier module de puissance et une seconde face (6", 8", 10"), opposée à la première face et supportant au moins un deuxième module de puissance, et une première plaque (14) est connectée au ou à chaque premier module de puissance, alors qu'une seconde plaque (16) est connectée au ou à chaque second module de puissance.
Patent CA-2270009-A1 (CA)
Inventor: VAVRO DAVID J
IPC: A63B55/00
Filed: 1999-04-22
Abstract: A golf bag is equipped with an integrated beverage cooler located in the bottom section of the bag beneath the main storage cavity. A chute portion extends upwardly to the side of the bag, with a zippered opening in the side of the bag, beneath the ball storage pocket, allowing access into the cooler for loading and removal of beverage. cans and ice. A drain filter allows drainage of water from the cooler through the bottom of the bag.
Patent CA-2270162-A1 (CA)
Title: Deformed multiple well template and process of use
Inventor: COLLINS GARY J
IPC: E21B23/00
Filed: 1998-03-06
Abstract: A deformed multiple well template (10, 110, 210) and a process for positioning the deformed template (10, 110, 210) downhole, expanding the template and drilling at least one subterranean well bore via said template (10, 110, 210). 'The template (10, 110, 210) has at least a portion thereof deformed and may be symmetrical or asymmetrical as deformed and/or expanded.
Patent CA-2271619-A1 (CA)
Inventor: BREYER STEPHEN R
IPC: A01B1/06
Filed: 1999-05-14
Abstract: A tool for inserting beneath a plant to sever roots, such as tap roots, that are located beneath a tree or shrub at a location relatively far from the circumference of a root ball, the tool comprising a cutting blade of generally triangular shape having a leading edge which is a relatively narrow cutting edge, and having sides angled inward from the cutting edge. The cutting blade is mounted on a long, slightly arcuate, slender shaft which is sufficiently long to reach under a tree shrub to sever roots and define a root ball in preparation for transplanting the tree or shrub.
Patent CA-2271680-A1 (CA)
Inventor: BROWN STEPHEN JOHN
IPC: C08F4/685
Filed: 1999-05-13
Abstract: The present invention provides a Ziegler-Natta catalyst based on titanium and vanadium useful in solution processes for the polymerization of olefins having a low amount of aluminum and magnesium. The catalysts of the present invention have a molar ratio of magnesium to the first aluminum component from 4.0:1 to 8.0:1 and molar ratio of magnesium to titanium and vanadium from 4.0:1 to 8.0:1. The invention provides a novel catalyst preparation method to substantially increase the polymer molecular weight in the high temperature ethylene polymerization process.
Patent CA-2272805-A1 (CA)
Title: Highly accurate a/d converter
Inventor: NAKAMURA SHOJI
IPC: H03M1/18
Filed: 1999-05-28
Abstract: An A/D converter provides a high conversion accuracy even when an input analog signal is at a low level. The A/D converter (10) comprises a first line including a first A/D conversion unit (ADC1) connected to an input terminal (1) applied with an analog signal, a second line including a first amplifier (AMP1) connected to the input terminal (1) and having an amplification ratio of 2m (m > 0), a second A/D conversion unit (ADC2), and a second amplifier (AMP2) having an amplification ratio of 2-m, and a combination of a switch and a level detector (SW, LDET) for connecting an output of the first line or an output of the second line to an output terminal (2) in accordance with an output level of the first line.
Patent CA-2274275-A1 (CA)
Inventor: REHBERG KARSTEN
IPC: B62D25/24
Filed: 1999-06-10
Abstract: Plug means for closing holes in the body of vehicles, whereby it comprises valve means having a valve member which normally is biased towards a sealing edge and which opens if a predetermined pressure drop between the interior of the body and the exterior thereof occurs.
Patent CA-2274512-A1 (CA)
Title: Biological pesticide
Inventor: TVEDTEN STEPHEN L
IPC: A01N63/50
Filed: 1998-01-08
Abstract: Methods for exterminating pests using compositions comprising at least one protease enzyme. A detergent component may also be utilized in such compositions.
Patent CA-2276209-A1 (CA)
Title: Access device with expandable containment member
Inventor: HART CHARLES C
IPC: A61F2/82
Filed: 1998-01-09
Abstract: An access device (30) having a single sheath (32) is inserted into a body passage puncture, with an expandable member (43) of the access device (30) held to a minimum diameter using structure that does not increase the diameter of the access device, rather than a large diameter external sheath. The structure (34) for holding the expandable member (43) to a minimum diameter can subsequently be removed from the lumen of the access device (30), once the expandable member (43) has been expanded.
Patent CA-2278530-A1 (CA)
Inventor: FAIRBANKS FLOYD B
IPC: F23Q2/36
Filed: 1998-01-21
Abstract: The present invention relates to a utility lighter (10) including a housing (12) having a handle (14) at one end (16) and a nozzle (18) at another end (20) and including a fuel supply (22) connected for selective fluid communication with the nozzle (18). An ignitor assembly, such as a piezoelectric mechanism (34), is operatively connected to the housing (12) for generating a spark proximate the nozzle (18) and an actuating assembly (38, 80, 46) is connected to the housing (12) proximate the handle and operates to both dispense fuel from the fuel supply (22) and to activate the ignitor assembly (34). A linking mechanism (120, 134, 140) is provided in order to initiate the flow of fuel from the fuel supply prior to generation of a spark such that a spark is generated when fuel is present at the nozzle (18). A  locating mechanism (150, 152, 162, 164) is provided proximate the valve (28) of the fuel container (22) in order to properly position the fuel container (22) within the housing (12). In addition, an isolator cap (170) is disposed around the nozzle (18) to assist in directing the spark in the vicinity of the nozzle (18).
Patent CA-2280171-A1 (CA)
Inventor: WOOD DONALD C
IPC: A63B53/00
Filed: 1998-02-11
Abstract: A computer implemented method for fitting golf clubs for golfers to accommodate the swing behavior of an individual's golf swing using combinatorial logic at both the global and local levels. Specifications for a full set of golf clubs are derived from the intersection of two models labeled FITMODEL and SPECPRO. Input data is first gathered (204) and normalized (206) based upon chosen parameters. The chosen parameter relationships are analyzed (208) by FITMODEL, which in turn prescribes specifications (214) for a single reference golf club, preferably a mid-set club such as the 6-iron. SPECPRO  uses the chosen parameters to analyze and generate inference (210) expressed as gradient functions - the incremental differences between each club. The gradients are used to specify (222) a full set of clubs.
Patent CA-2280181-A1 (CA)
Inventor: BIEGON ANAT
IPC: A61P27/02
Filed: 1998-02-04
Abstract: The present invention discloses the use of permanently charged steroid agonists or antagonists as potent anti-angiogenic compositions comprising as an active ingredient a compound of general formulae (I), (II) or (III), wherein DRUG is any steroid agonist or antagonist, a mixed agonist-antagonist, or a partial agonist and the substituents are as defined in the specification.  The effects of estradiol, tamoxifen, TMI or a placebo on the growth or MCF-7 tumors implanted in the vnetral fat pad of nude mice (see the figure). The left panel gives data for tamoxifen, TMI and the placebo, while the right panel adds the group treated with estradiol.
Patent CA-2282980-A1 (CA)
Title: System and method of managing different types of electronic price labels
Inventor: BHYRAVABHOTLA RAGHURAMA
IPC: G06F3/048
Filed: 1999-09-22
Abstract: An electronic price label (EPL) system which verifies that an EPL supports content of a message before sending the message. The system includes a plurality of EPLs within a plurality of different types of EPLs, and a computer which determines characteristics of the EPLs, obtains content for messages to be sent to the EPLs, verifies that the content is compatible with the characteristics of the EPLs, and sends the messages to the EPLs only if the content is compatible with the characteristics of the EPLs.
Patent CA-2285275-A1 (CA)
Inventor: ISHIKAWA MINORU
IPC: H01M4/1393
Filed: 1998-04-03
Abstract: A carbonaceous electrode having improved capacities for doping and dedoping of a cell active substance, such as lithium, and suitable for a non-aqueous solvent secondary battery, is constituted by a carbonaceous material having a true density as measured by a butanol substitution method of at most 1.46 g/cm3, a true density as measured by a helium substitution method of at least 1.7 g/cm3, a hydrogen-to-carbon atomic ratio H/C of at most 0.15 as measured according to elementary analysis, a BET specific surface area of at most 50 m2/g as measured by nitrogen adsorption BET method, and a carbon dioxide adsorption capacity of at least 10 ml/g. The carbonaceous material is advantageously produced by carbonizing an organic material originated from bamboo genera of family Gramineae, particularly genus Pleioblastus or Bambusa, at 1000 - 1400 ~C under a reduced pressure or under a flowing inert gas stream to provide an appropriate porous structure.
Patent CA-2285321-A1 (CA)
Title: Guiding roller for web material
Inventor: NIEMEYER FRIEDEL
IPC: D21F1/40
Filed: 1999-01-16
Abstract: The present invention relates to a guiding roller for web material which is mainly intended for paper machines. This guiding roller comprises two outer tubular sections (2; 2') as well as an optional tubular section (1) mounted in between, wherein said tubular sections (1, 2; 2') are supported on a central axis (3) by ball bearings (5; 6, 7). The tubular sections (2; 2') are further capable of radial displacement relative to said axis (3). The adjacent ends (1a; 2a) of adjacent tubular sections (1; 2) are mutually tightened and directly connected together to avoid any rotation. The ball bearings (5) are located below the tightening area (1a; 2a), while the outer tubular sections (2; 2') are formed so as to be longitudinally resilient.
Patent CA-2285459-A1 (CA)
Title: Matching overcurrent characteristic curves
Inventor: SMITH JAMES JOHN
IPC: H02H3/00
Filed: 1998-10-23
Abstract: A method for configuring a digital overcurrent relay to provide a plurality of selectable time overcurrent characteristic responses corresponding to a plurality of target curves. According to one embodiment, a template curve is selected from the plurality of target curves, and a scaling factor is generated for each remaining target curve, wherein the relay comprises means for generating approximated curves from a given template curve and a given scaling factor. It is determined whether each approximated curve is within a threshold amount of total error with respect to its corresponding target curve. If any approximated curves are above the threshold amount, then a further template is selected from the plurality of target curves, and scaling factors are again generated and adjusted for the further template curve, until no approximated curves are above the threshold amount.
Patent CA-2287010-A1 (CA)
Title: Network path protection
Inventor: ATTERTON PETER JOHN
IPC: H04L12/56
Filed: 1999-10-20
Abstract: Path protection of high priority traffic is provided between network nodes in a packet network carrying lower priority traffic in addition to the high priority traffic. First and second traffic paths are provided between the nodes, the high priority traffic being allocated to the first path and the lower priority traffic to the second path.  In the event of a failure of the first path carrying the high priority traffic, this traffic is switched from the first path on to the second path and the lower priority traffic is switched to the first path.
Patent CA-2288840-A1 (CA)
Inventor: HART STEPHEN
IPC: A61K31/711
Filed: 1998-05-29
Abstract: Complexe composé (i) d'un acide nucléique, (ii) d'un constituant de fixation à intégrine, par exemple, un peptide de fixation à intégrine, (iii) d'un constituant polycationique de fixation à l'acide nucléique, par exemple, oligolysine, et (iv) d'un constituant lipidique, par exemple, un liposome cationique. Ce complexe présente une activité de transfection.
Patent CA-2292503-A1 (CA)
Title: Firearms security
Inventor: O'DWYER JAMES MICHAEL
IPC: F41A17/06
Filed: 1998-06-02
Abstract: This invention provides security measures for electronically operated munitions and firearms such as the pistol (10). The electronic controls (18) may be armed or disarmed electronically and provided with encoding means which arms the electronic controls to enable firing of the secured weapon upon the monitoring authorised code.  This code may be electronically personalised to the individual. The code may be provided by a swipe card or the like carried by the authorised personnel. Alternatively the code may be biometric data which retains a lifelong distinctive identity of the authorised personnel.
Patent CA-2294116-A1 (CA)
Inventor: POUCHELON ALAIN
IPC: C08K9/06
Filed: 1998-06-23
Abstract: The invention concerns the preparation of a silica suspension in a silicon fluid, said suspension being used to produce silicon vulcanisable by polyaddition (RTV elastomers). The problem which the invention aims to solve is that of finding a technical compromise between the rheological and mechanical properties of the final RTV. The invention solves the problem by providing a method for preparing a silica suspension treated with hexamethyldisilazane (HMDZ) in a silicon fluid with siloxyl Si-Vinyl function, characterized in that it consists essentially in introducing HMDZ in the preparation medium, before and/or substantially while bringing at least part of the silicon fluid prepared with at least part of the particulate filler used, said introduction being carried out once or several times for a HMDZ fraction corresponding to a proportion not more than 8% by dry weight with respect to the total silica charge and after bringing together the POS and the filler.
Patent CA-2298275-A1 (CA)
Title: Method for processing network messages
Inventor: YODER JEREMY T
IPC: H04L12/56
Filed: 2000-02-08
Abstract: A network includes a plurality of electronic control units (ECU) connected with each other and receiving messages via a bus, each message having an identifier portion and a data portion. An ECU processes messages by converting the message identifier to a hash value, comparing the hash value to a plurality of index values stored in a lookup table, the lookup table having relevance values corresponding to each index value, discarding the message if a corresponding relevance value indicates that the message is not relevant to the ECU, inserting the message into memory buffer if a corresponding relevance value indicates that the message is relevant to the ECU, and further processing only selected ones of the messages in the buffer. Preferably, the hash value has fewer data bits than that of the identifier portion of the messages, and the number of unique hash values is the same as a number of index values. The number, N, of index values for the lookup table is determined by selecting from a plurality of potential values for N, a particular N value which minimizes a number of non-relevant messages received by the ECU.
Patent CA-2299467-A1 (CA)
Title: Method to prevent accelerated atherosclerosis using (srage) soluble receptor for advanced glycation endproducts
Inventor: SCHMIDT ANN MARIE
IPC: A61K38/17
Filed: 1998-08-05
Abstract: The present invention provides for a method to prevent accelerated atherosclerosis in a subject predisposed thereto which comprises administering to the subject a polypeptide derived from soluble receptor for advanced glycation endproduct in an amount effective to prevent accelerated atherosclerosis in the subject. The present invention also provides for a method to prevent a macrovessel disease in a subject predisposed thereto which comprises administering to the subject a polypeptide derived from soluble receptor for advanced glycation endproduct in an amount effective to prevent macrovessel disease in the subject.