baber/WOPTO huggingface dataset:
Patent CA-2246476-A1 (CA)
Title: Radio frequency identification tag system and programming equipment
Inventor: PRZYGOCKI DAVID
IPC: G07F13/02
Filed: 1998-09-03
Abstract: They invention includes computer system to emulate a magstripe card reader connected to a fuel dispenser terminal based on radio frequency signals, the system having a first radio frequency transmitting antenna, a separate first radio frequency receiving antenna and a controller for electronically controlling the system which is connected to both the transmitting and receiving antenna. The controller is adapted to develop and emulate magstripe card reader signals based on signals received from the receiving antenna. A multiplexer is utilized for selectively communicating magstripe card reader signals from the controller to the fuel dispenser terminal system. A method is described of combining a radio frequency tag identification system having a multiplexer with a fuel dispenser system by disconnecting a magstripe card reader from a fuel dispenser system card reader input, connecting the radio frequency tag identification system multiplexer to the fuel dispenser system card reader input; and then connecting the previously disconnected magstripe card reader to the multiplexer.
Patent CA-2247362-A1 (CA)
Title: Etiquettes de dimensions variables a double face et sans doublure
Inventor: SMITH FRANCIS R
IPC: G09F3/10
Filed: 1997-01-31
Abstract: Ensemble d'étiquettes sans doublure obtenu en enduisant essentiellement toute la surface de la deuxième face d'un ruban constituant le premier substrat à l'aide d'un premier adhésif autocollant et en enduisant essentiellement toute la surface de la première face d'un ruban constituant le deuxième substrat à l'aide d'un deuxième adhésif autocollant qui est physiquement ou chimiquement incompatible avec le premier adhésif, puis en amenant le premier et le deuxième adhésif au contact direct l'un de l'autre. Les substrats revêtent la forme d'étiquettes distinctes, séparables pouvant se présenter en nappe, en rouleaux ou en éventail. Chaque étiquette sur le substrat peut présenter un bord antérieur aligné sur celui de la suivante ou bien les bords antérieurs peuvent être espacés les uns des autres (par exemple de la moitié de la longueur de chacune des étiquettes). En utilisant des adhésifs physiquement incompatibles, le premier adhésif peut être à base végétale - un adhésif polyvinyle alcool ou un adhésif réagissant aux ultraviolets - tandis que le deuxième est un acrylique. Lorsque l'on utilise des adhésifs chimiquement incompatibles, le premier peut être un adhésif acrylate et le second un copolymère de cette adhésif acrylate et d'acrylonitrile.
Patent CA-2247785-A1 (CA)
Title: Molds for a continuous casting system
Inventor: RODE DIRK
IPC: B22D11/055
Filed: 1998-09-18
Abstract: The invention concerns a mold for a continuous casting system with a shaping mold tube made of a material with high thermal conductivity. To reduce the rate of heat removal at the height of the meniscus that forms within the mold cavity, the exterior of the mold tube is provided with a plating of a material of lower thermal conductivity than that of the mold tube. This results in reduced heat flow with higher temperatures in the meniscus area and in improvement in the surface quality of the cast billet.
Patent CA-2250474-A1 (CA)
Inventor: PICKER DENNIS J
IPC: H04N21/647
Filed: 1997-03-25
Abstract: The apparatus (101) and method for spectrum management in a multipoint communication system controls upstream channel usage for secondary stations (110) transmitting information to a primary station (101) and downstream channel usage for secondary stations (110) receiving information from a primary station (101). The preferred apparatus (101) embodiment includes a processor arrangement (120) having a master controller (121) and a plurality of processors (130), with the processor arrangement connected to a channel interface (125). The apparatus (101) and method controls channel load balancing, channel congestion, and channel assignment in a multipoint communication system, and controls upstream channels independently from downstream channels. Factors and parameters utilized in such channel control and allocation include error parameters, channel noise parameters, transmit and receive loading factors, and congestion parameters.
Patent CA-2251063-A1 (CA)
Title: Method and device for optimizing the position of the strings on stringed and plucked instruments
Inventor: ANKE GERHARD
IPC: G10D1/04
Filed: 1998-02-10
Abstract: A method and apparatus are provided herein for improving the playability of stringed or plucked instruments, especially guitars, comprising strings which are stretched across a fretted or fretless fingerboard. The method includes the steps of measuring the actual profile of the fingerboard surface underneath each stretched string using a computer-controlled measuring and tuning apparatus. An optimum profile of the fingerboard surface is then calculated by taking into account specific vibration behaviour of each string to minimize the distance between each string and the fingerboard surface, using a computer. A differential amount, that is the difference between the optimum profile and the actual profile, is removed from the fingerboard surface using a machine.
Patent CA-2252146-A1 (CA)
Inventor: YANG MING-TE
IPC: B65D25/48
Filed: 1998-10-28
Abstract: A liquid container includes a hollow body containing an outlet hole formed in the bottom portion thereof, a V-shaped control valve mounted on the bottom portion of the body and having a first tube received in the body and a second tube extending outward from the body via the outlet hole, a plurality of drain holes contained in the mediate portion of the control valve and connecting between the body and the second tube, a control gasket movably mounted in the control valve and movable between a first position where the control gasket seals each of the drain holes, thereby closing the connection between the body and the second tube, and a second position where the control gasket is released from the drain holes, thereby opening the connection between the body and the second tube, and a drive device for moving the control gasket between the first position and the second position.
Patent CA-2252388-A1 (CA)
Title: Method for manufacturing a bobbin provided with a protection cover
Inventor: KJAERGAARD FINN
IPC: D06B5/16
Filed: 1997-04-17
Abstract: A method for manufacturing a protection cover (1) for use on bobbins (2) is described. The protection cover (1) is used to protect the bobbin (2) during treatment and transportation, including dyeing. The protection cover (1) is made by knitting a tubular cover. Said cover is arranged on the bobbin (2) in a loose condition. Afterwards, a shrinking of the cover is effected, so that it shrinks around the bobbin (2) in order to bear against the cylinder surface (4) of the bobbin and edge areas (6) of the end surfaces (5). As the cover is not fully shrunk prior to its application, this can easily take place without the risk of damaging the outer yarn layers in the bobbin. A subsequent removal of the cover is done easily by lifting it off in one area of the bobbin.  Provided that a tearing thread is provided, this outwards directed traction can be used to tear the thread at the same time, so that the protection cover is easily removed without the risk of damaging the outer yarn layers in the bobbin (2).
Patent CA-2252817-A1 (CA)
Title: Improved probing of specific nucleic acids
Inventor: LANDEGREN ULF
IPC: C12Q1/6834
Filed: 1997-04-30
Abstract: The present invention relates to improved methods for probing of specific nucleic acids using circularizable probes designed such that they report the presence of a target sequence by allowing a detectable moiety to remain bound if and only if the probe has been cyclized in a target-dependent linking reaction. The invention may be used for distinction between sequence specific vanations of nucleic acids.
Patent CA-2255285-A1 (CA)
Title: Enhanced subscriber authentication protocol
Inventor: BLAKE-WILSON SIMON
IPC: H04W12/04
Filed: 1998-12-04
Abstract: The present invention provides a method of authenticating a pair of correspondents in a communication system, such as in a mobile phone network by utilizing a blend of public-key cryptography and symmetric cryptography. Each session between the mobile phone and the network consists of a public-key based mutual authentication and key exchange followed by symmetric-key based secure data exchange.
Patent CA-2256349-A1 (CA)
Title: Aromatic polyamide resin composition having excellent balance of toughness and stiffness
Inventor: NOZAKI MASAHIRO
IPC: C08K3/00
Filed: 1997-05-16
Abstract: An aromatic polyamide resin composition is obtained by blending an inorganic filler and an impact modifier. The ratio of the weight M of the inorganic filler to the weight T of the impact modifier is preferably 2.0M/T6.5. The aromatic polyamide resin has a melting point of at least 290 ~C, and preferably a glass transition temperature of at least 60 ~C. The composition has an excellent balance of toughness and stiffness.
Patent CA-2256970-A1 (CA)
Inventor: WICK DALE M
IPC: G06T11/60
Filed: 1998-12-23
Abstract: The invention provides a method of defining and rendering an image comprising a plurality of components (bitmaps, vector-based elements, text and effects or other effects) and an alpha channel. The components are grouped into a ranked hierarchy based on their position relative to each other. There can be groups of groups. With this grouping, each component can be defined using a common protocol and rendering and processing of the components can be dealt with in the same manner. The image can be processed on a scanline-by-scanline basis. For each scanline analysis, information regarding neighbouring scanlines are acquired and processed, as needed.
Patent CA-2257232-A1 (CA)
Inventor: PALMOUR JOHN W
IPC: H01L21/04
Filed: 1997-05-29
Abstract: A silicon carbide metal-insulator semiconductor field effect transistor having a u-shaped gate trench and an n-type silicon carbide drift layer. A p-type region is formed in the silicon carbide drift layer and extends below the bottom of the u-shaped gate trench so as to prevent field crowding at the comer of the gate trench. A unit cell of a metal-insulator semiconductor transistor having a bulk single crystal silicon carbide substrate of n-type conductivity silicon carbide. A first epitaxial layer of n-type conductivity silicon carbide and a second epitaxial layer of p-type conductivity silicon carbide formed on the first epitaxial layer. A first trench is formed which extends downward through the second epitaxial layer and into the first epitaxial layer. A second trench, adjacent the first trench, is also formed extending downward through the second epitaxial layer and into the first epitaxial layer. A region of n-type conductivity silicon carbide is formed between the first and second trenches and having an upper surface opposite the second epitaxial layer. An insulator layer is formed in the first trench where the upper surface of the gate insulator layer formed on the bottom of the first trench is below the lower surface of the second epitaxial layer. A region of p-type conductivity silicon carbide is formed in the first epitaxial layer below the second trench. Gate and source contacts are formed in the first and second trenches respectively and a drain contact is formed on the substrate. Preferably the gate insulator layer is an oxide such that the transistor formed is a metal-oxide field effect transistor.
Patent CA-2258990-A1 (CA)
Title: Use of oxidized cellulose and complexes thereof for chronic wound healing
Inventor: HARVEY WILSON
IPC: C07K14/78
Filed: 1997-06-27
Abstract: The invention provides the use of oxidized cellulose, preferably oxidized regenerated cellulose (ORC), and complexes thereof with structural proteins such as collagen, for the preparation of wound dressings for the treatment of chronic wounds. Preferably, the dressing is a knitted, woven or nonwoven fabric of ORC suitable for application directly to the surface of a wound as a wound dressing, or a semi-solid ointment for topical application containing dispersed ORC fibers or powder, or a collagen/ORC sponge. Preferably, the chronic wound is a venous ulcer, a decubitis ulcer or a diabetic ulcer.
Patent CA-2262007-A1 (CA)
Title: Env-glycoprotein vaccine for protection of htlv-i and -ii infection
Inventor: HALL WILLIAM W
IPC: A61P25/00
Filed: 1997-07-22
Abstract: The present invention relates to novel protein antigens derived from the HTLV env protein, that are capable of being used as a vaccine to aid in the prevention and treatment of HTLV-I and HTLV-II infections and novel methods for the production of such an antigen.
Patent CA-2263493-A1 (CA)
Title: Adhesive tape feeding device for a pressure cylinder
Inventor: ROOSEN REINER
IPC: B65H35/00
Filed: 1997-08-12
Abstract: The invention pertains to a device for supplying double-sided adhesive tape, drawn from a roll (16), to a pressure cylinder (12). To ensure perfect application of the tape onto the pressure cylinder, without overlapping or deflection when two tapes are applied at short distance from each other, the system includes a mounting base (22) into which the roll is inserted axially relative to the pressure cylinder shaft (30), while the mounting base has a pressure element pushing the double-sided adhesive tape towards the pressure cylinder, and a cutting device (44) axially parallel to the pressure cylinder shaft.
Patent CA-2268977-A1 (CA)
Inventor: DAVISON THOMAS W
IPC: A61B17/32
Filed: 1997-10-16
Abstract: The present invention relates to devices and methods for improving blood flow to the heart of a patient. One device includes a transducer assembly (36) disposed in a housing. An end effector (40) is operatively coupled to the transducer assembly (36) and includes a channel-forming member. The channel-forming member is capable of creating channels in the heart of a patient. A  method of improving the blood flow to the heart of a patient is also provided.  The method includes the steps of providing a surgical device having an end effector (40), energizing the surgical device to cause the end effector (40) to vibrate, contacting the end effector (40) with a ventricular wall of the heart, advancing the end effector (40) into the ventricle wall, and creating a channel in the ventricle wall with the end effector (40).
Patent CA-2274236-A1 (CA)
Title: Assembly for fastening a tooth to an adaptor
Inventor: ADAMIC DWIGHT L
IPC: E02F9/28
Filed: 1999-06-10
Abstract: The present invention provides for an assembly for locking a tooth or a lip shroud to an adaptor or bucket lip. The tooth or lip shroud has a slot in its lower surface of the end opposite to the point and a first opening in its upper surface extending into the slot.  The adaptor or bucket lip has a boss on its upper surface corresponding to the slot in the tooth or shroud so that when the tooth or shroud is slid onto the adaptor or bucket lip, the slot engages the boss. The assembly includes a pin and a pin carrier. The pin carrier is slidably receivable into the slot in the tooth or shroud. It has an opening for receiving the pin on its upper surface which aligns with the first opening in the tooth or shroud when the pin carrier is inserted into the slot.  The pin is inserted into the pin receiving opening of the tooth or shroud and received into the pin carrier. The pin engages the tooth or shroud and the pin carrier and locks the tooth or shroud onto the adaptor or bucket lip. The pin and pin carrier may also include magnets for holding the pin in position.
Patent CA-2274432-A1 (CA)
Title: Interconnection mechanism
Inventor: THOMAS ROGER
IPC: A01D34/74
Filed: 1999-06-14
Abstract: A lawn mower comprising a cutting deck (2), which is mounted on at least two wheel assemblies (4), each wheel assembly having a height adjustment mechanism comprising a pivoting mechanism (22) and which is configured so that the height of the cutting deck (2) above the wheel assembly (4) is dependent on the angular position of the pivoting mechanism (22), the axes of pivot of the pivoting mechanisms (22) being substantially parallel, characterised in that the pivoting mechanisms (22) are interconnected by an interconnecting bar (38) so that pivotal movement of one pivoting mechanism (22) in one direction about its axis of pivot results in a pivotal movement of another pivoting mechanism (22) about its axis of pivot in the opposite direction. Each of the pivoting mechanisms raise the height of the deck (2) by substantially equal mounts when pivoted through any part of their full range of pivotal movement.
Patent CA-2278813-A1 (CA)
Title: Anti-spin method and apparatus for conical/gyratory crushers
Inventor: KARRA VIJIA KUMAR
IPC: B02C2/04
Filed: 1999-07-26
Abstract: An anti-spin mechanism includes fingers disposed at a bottom portion of a crushing gap. In this way, the anti-spin mechanism does not interfere with the crushing apparatus as do clutch-based, anti-spin mechanisms. The anti-spin mechanism relies on mechanical prohibition of rotation of the crusher head with respect to the bowl due to finger-on-finger engagement. The fingers can be mounted on mantles, bowl liners, bowls, housing, or crushing heads to achieve anti-spin functions.
Patent CA-2281461-A1 (CA)
Title: Data transmitting apparatus, network interface apparatus, and data transmitting system
Inventor: SHIOBARA YASUHISA
IPC: H04L12/28
Filed: 1999-09-08
Abstract: A data transmitting apparatus corresponding to one of data transmitting apparatuses constituting a network. The data transmitting apparatus comprises a connection section, a signal receiving section, a transmission right acquisition section, and a signal transmitting section. The connection section is connected to a communication system including a terminal which operates in accordance with a protocol to transmit no signals while signals are transmitted through a data transmission path, to stop transmitting signals if the signals transmitted collide with other signals in the data transmission path, and to transmit the signals again after a period for preventing collision of signals has elapsed. The signal receiving section receives signals transmitted from the terminal or any one of the other data transmitting apparatus, the signals transmitted from the data transmitting path in a data format that accords with the protocol.      The transmission right acquisition section determines whether any one of the other data transmitting apparatuses holds transmission right for a prescribed period, from information representing an order in which the other data transmitting apparatuses should acquire the transmission right. The signal transmitting section transmits signals to the data transmission path in the data format that accords with the protocol, no matter whether signals exist in the data transmitting path when the transmission right acquisition section determines that the data transmitting apparatus has the transmission right, and without adjusting transmission timing when signals collide in the data transmission path, in order to prevent the signals to collide again in the data transmission path.
Patent CA-2288595-A1 (CA)
Title: Modular jack with side mounted light emitting diode
Inventor: OLEYNICK GARY J
IPC: H01R13/66
Filed: 1999-11-08
Abstract: A modular jack comprising an insulative housing having a substantially open front side and a rear side and first and second longitudinal walls. The second longitudinal wall is positioned over said first longitudinal wall in spaced parallel wall. A pair of lateral walls interposed in spaced parallel relation between said first and second longitudinal walls to form at least one transverse plug receiving cavity extending from the substantially open front side of said jack to the rear side. A light emitting diode (LED) module is fixed to one of said lateral sides of the housing to allow for easy visibility and reduced interference with signals to the jack. The LED module is also easily removable to allow field replacement.
Patent CA-2288820-A1 (CA)
Inventor: DUFOUR DANIEL
IPC: H04W16/18
Filed: 1998-04-30
Abstract: A frequency plan revision proposal (106) is evaluated to determine (110) whether it is compatible with the current cell configuration by insuring that sufficient frequencies (f) having appropriate operating modes are available for assignment to meet the traffic and control channel requirements and availability of the included cell transceivers (26). A record (142) is kept of previously approved proposals resulting in a revision to the frequency plan assignment. A determination (130) is then made as to whether the current proposal if implemented would have an adverse effect on the network in view of the previously approved proposals maintained by the record. An adverse effect is found when: a sub-frequency group (14)/frequency dropped and/or added by the proposal at issue matches or is adjacent to a sub-frequency group/frequency dropped and/or added in the record of the previously approved proposals; and the distance (d) between the cell (10) of the proposal at issue and the cell of the previously approved proposal in the record are within a certain threshold distance of each other.
Patent CA-2289198-A1 (CA)
Title: A personal desktop router
Inventor: NEYMAN IGOR
IPC: H04L12/56
Filed: 1998-06-03
Abstract: A client-server telephone call router system as part of a customer premises system (123) has a client-server router adapted to execute on a telephony switch (121), such as a public branch exchange (PBX) or other telephony switch (121), or on a processor (223) connected by CTI link to a telephony switch (121). The telephony switch (121) or processor (223) executing the router is connected to a local area network (LAN) (301) that also interconnects computer workstations (361, 362) proximate to telephones (131, 132) connected to the telephony switch (121). Client user interface applications run on the computer workstations (361, 362), allowing clients to edit routing rules for the router (207), which has a list of routing rules keyed to users and workstations (361, 362) of the customer premises system (123). The editing rules are kept by the router in portions dedicated to individual users. With this system a user can edit at a workstation (361, 362) on the LAN (301) his/her own routing rules, and transmit the edits to the client-server router (207) where the rules will be followed to route calls for that user and protocol.
Patent CA-2291079-A1 (CA)
Title: Procede pour la preparation de fleur de farine de guar pure
Inventor: WIELINGA WILLEM COR
IPC: A23K20/163
Filed: 1998-06-11
Abstract: L'invention concerne un procédé pour la préparation de fleur de farine de guar pure et l'utilisation de fleur de farine de guar de chlorure d'hydroxypropyltriméthylammonium, obtenue à partir de fleur de farine de guar préparée selon ce procédé, dans des formulations cosmétiques aqueuses transparentes, qui s'appliquent sur les cheveux et/ou sur la peau et doivent être ensuite éliminées par rinçage, comme revitalisants et/ou agents de dépôt pour d'autres revitalisants lors de la dilution des formulations cosmétiques.
Patent CA-2292538-A1 (CA)
Title: Ethylene enhancement of processes for synthesis of high melting thermoplastic elastomeric .alpha.-olefin polymers (pre/epe effects)
Inventor: MOORE ERIC J
IPC: C08F210/16
Filed: 1998-06-12
Abstract: This invention relates generally to low ethylene insertions into alpha-olefin polymers and processes for production of such polymers using unbridged fluxional metallocene catalyst systems.
Patent CA-2294800-A1 (CA)
Title: A compact disk in bank card or business card format
Inventor: STARKE OLAF
IPC: B42D25/29
Filed: 1998-08-18
Abstract: The invention relates to a compact disc in check or business card format, having one compact disc surface on at least one of its sides. The invention is characterized in that said compact disc has a main support part (2) and a truncation part (13). The compact disc surface is centered on the main support part. Each diagonal of said main support part has a length which corresponds to the diameter of the insertion slot of a CD-ROM drive or a CD player.