baber/WOPTO huggingface dataset:
Patent CA-2242867-A1 (CA)
Title: Interaction modalities for multimedia delivery and presentation
Inventor: HARATSCH ERICH
IPC: H04L29/06
Filed: 1998-07-14
Abstract: A method and apparatus for displaying received data, analyze the quality of the displayed data formulating a media-parameter suggestion for the encoder to alter the characteristics of data to be sent to the receiver, and sending from the receiver, the formulated suggestion.
Patent CA-2245098-A1 (CA)
Inventor: SALLWASSER ALAN J
IPC: E21B23/00
Filed: 1998-08-17
Abstract: A conveyance apparatus for conveying at least one logging tool through an earth formation traversed by a horizontal or highly deviated borehole is disclosed.  The conveyance apparatus comprises a pair of arcuate-shaped cams pivotally mounted to a support member, means for biasing the arcuate surface of each cam into contact with the borehole wall, and actuators operatively connected to each cam.  A logging tool is attached to the conveyance apparatus.  When either actuator is activated in a first direction, the cam connected to the activated actuator is linearly displaced forward and the arcuate surface of the cam slides along the borehole wall.  When either actuator is activated in a second direction, the activated actuator pulls the connected cam backwards and the biasing means thereby urges the arcuate surface of the cam to lock against the borehole wall. Once the cam is locked, further movement of the actuator propels both the conveyance apparatus and the logging tool forward along the highly deviated or horizontal borehole.
Patent CA-2245759-A1 (CA)
Title: Rf diode and method of manufacturing same
Inventor: LOSEHAND REINHARD
IPC: H01L29/872
Filed: 1998-08-25
Abstract: An RF diode, and method for its manufacture, in which a well, doped n-conductive or p-conductive, is formed in a high-ohmic silicon substrate.  A silicon epitaxial layer is provided over a first subregion of a surface of the well wherein the layer has the same conductivity type as the doped well.  The silicon epitaxial layer is provided with a first Schottky contact layer onto which a first contact metallization is applied.  A second subregion located next to the first subregion of the surface of the well is provided with a second Schottky contact layer onto which a second contact metallization is applied.
Patent CA-2247556-A1 (CA)
Title: Method and apparatus for bonding an active tag to a patch and a tire
Inventor: WILSON PAUL B
IPC: B60C19/00
Filed: 1998-09-16
Abstract: A method and apparatus for bonding an active tag to a patch and assembling the patch to a tire is set forth. A patch assembly and a method for securing an electronic monitoring device having electronic and mechanical components for monitoring at least one engineering condition within a tire, comprising an rigid tag assembly encapsulating the electronic monitoring device, bonded to a vulcanized rubber patch which is secured to the inner cavity of a tire utilizing a layer of dual cure bonding rubber.
Patent CA-2248749-A1 (CA)
Title: Flow divider box for conducting drilling mud to selected drilling mud separation units
Inventor: WILLIAMS J TERRELL
IPC: E21B21/06
Filed: 1998-09-29
Abstract: A flow divider box disposed beneath a continuous-loop scalper screen mud separation unit that is driven in a continuous loop conveying and discharging large amounts of drill solids at the end of the separation units end overboard or into a reserve pit. The flow divider box has a box-like housing with an array of openings to redistribute or separate the fluid flow stream, drilling fluid, or drilling mud, in the flow path of the separation unit and selectively supply drilling fluid or drilling mud to a sundry of shale shakers in the process of separating the sediments obtained from a well bore. The flow divider box has a series of collection divider boxes disposed below the separator unit that separate and redistribute drilling fluid or drilling mud, upstream of the conventional solids control equipment of the mud system of a drilling rig. The individual collector boxes are rectangular, baffled, and have adjustable gates parallel to the flow divider box, capable of 2' head capacity. This results in an increased hydrostatic head, which enables high flow rates to be easily processed. The adjustable gates collectively meter the flow rate to the shale shakers or other conventional downstream solids control equipment of the mud system. Thus, one flow divider box services a sundry of shale shakers, etc., while controlling the flow rate at each individual shale shaker.      The series of opened or closed gates, or positioned at various increments therebetween, provides the option of running one or multi shale shakers at one time, to compliment the drilling operations, with respect to changes in the lithology, geological formations, or loss of returns in relation to the gallons pumped or volume of drilling fluid or drilling mud entering the flow divider box.
Patent CA-2252946-A1 (CA)
Title: Battery separator with porous backweb and ribbing
Inventor: ALEXANDER FRANCIS E
IPC: H01M50/463
Filed: 1997-05-05
Abstract: A battery separator (10) for use in flooded cell type lead acid batteries comprising a backweb (20) of a porous, acid resistant, embossable material with a plurality of ribs (14a-14g) extending from at least one planar surface (12) of the backweb (20). The ribs are located across the width of the backweb (20) and extend in a direction substantially parallel to the longitudinal dimension of the backweb (20). Each rib is an embossed corrugated structure comprised of alternating ridges (22a-22d) and furrows (23a-23d). The ridges and furrows are in non-parallel alignment to the longitudinal dimension of the separator, and preferably perpendicular thereto. The ribs are formed on a substantially flat battery separator backweb (20) by passing the backweb (20) through the nip formed by a pair of opposed embossing rollers (30, 32).
Patent CA-2255483-A1 (CA)
Title: Method for recovering sulfuric acid from sulfurous by-products of a process for preparing 2-hydroxy-4-methylthiobutyric acid (mha)
Inventor: HAEFNER VOLKER
IPC: C01B17/74
Filed: 1998-12-08
Abstract: The invention relates to a method for recovering sulfuric acid from sulfurous by-products which arise in processes for preparing 2-hydroxy-4-methylthiobutyric acid (MRA), wherein the sulfuric acid accumulates in a grade in which it can be directly reused in such processes.  For this purpose the combustion gas containing SO2 is passed through a sulfuric H2O2 solution in which the SO2 is oxidised to form sulfuric acid.
Patent CA-2257623-A1 (CA)
Inventor: NICHOLS SCOTT E
IPC: C08B30/00
Filed: 1996-06-12
Abstract: The present invention provides methods of making paper utilizing glucans, produced by glucosyltransferase D enzymes of the species Streptococcus mutans, instead of modified starches. The present glucans are functionally similar to the hydroxethyl modified starch and are particularly useful in the sizing and coating steps of paper manufacture. The present glucans also exhibit thermoplastic properties and impart gloss to the paper during the coating step.
Patent CA-2258413-A1 (CA)
Inventor: YANG CHE-HSIUNG
IPC: F16L19/08
Filed: 1999-01-12
Abstract: A coupling device for metal pipes includes a Cup-joint, a Packing Busing, a Padding and a Bridging Connector. The Cup-joint holds and confines in its confining face the Packing Busing and the Padding Bushing to yield a central holding hole for accommodating metal pipe. When the set of Cup-joint, Packing Bushing and Padding Bushing is screwed to the threaded head of the Bridging Connector, the Guiding Face of the latter squeezes the converging ending of the Padding Bushing to yield an excellent sealing effect to the metal pipe, while in tum the-Padding Bushing pushes and squeezes the fortifiers against the confining face and the metal pipe to yield a clasping and sealing effect to-the leakage inside the coupling device.
Patent CA-2259939-A1 (CA)
Title: Process of producing sulfuric acid
Inventor: SCHMIDT GEORG
IPC: C01B17/775
Filed: 1997-07-03
Abstract: A catalytic SO2 oxidation produces a mixture of gases containing SO3 and H2O in a molar ratio of at least 1:1, and having a temperature of 300 °C to 600 °C. The mixture of gases is passed through a condenser, in which the mixture is cooled indirectly by a cooling fluid to a condenser outlet temperature of 180 °C to 240 °C. At least 50 % of the theoretically possible amount of sulphuric acid is formed, condensed and drawn off. The cooling fluid drawn off from the condenser has been heated to a temperature of at least 130 °C, so that its energy content can be utilized.      The gas mixture containing sulphur trioxide that is drawn off from the condenser is brought into direct contact with concentrated sulphuric acid at 60 °C to 120 °C, generating concentrated product sulphuric acid.
Patent CA-2260254-A1 (CA)
Title: Call waiting service in a telecommunications network
Inventor: BALE MELVYN CHRISTOPHER
IPC: H04M3/42
Filed: 1997-06-25
Abstract: A method of operating a telecommunications network includes establishing a dial-up connection between a user data terminal and a data services provider and transmitting a data channel over the dial-up connection. When a call is made to the user by a third party, a call waiting signal is transmitted on the data channel to the user. The network may divert calls to the data services provider and the call waiting signal may be generated at the data services provider in response to the receipt of the call from the third party.
Patent CA-2260320-A1 (CA)
Title: Convertible first-second class bench seat that can accommodate two passengers and procedure for converting the said bench seat
Inventor: DURAND FRANCOIS
IPC: B60N2/75
Filed: 1999-02-11
Abstract: La présente invention porte sur une banquette modulable (1) de première-seconde classe présentant un nombre donné N de places, ladite banquette modulable (1) de première-seconde classe étant susceptible d'être transformée en banquette à N places de seconde-première classe, ladite banquette modulable de première-seconde classe comportant D1 sièges (2) à N assises (3) et 2N accoudoirs (4), ladite banquette modulable (1) de première-seconde classe comportant des moyens de translation (5) d'au moins une desdites N assises (3) et d'au moins un desdits 2N accoudoirs (4), lesdites N assises (3) et lesdits 2N accoudoirs (4) restant alignés les uns par rapport aux autres, des translations T obtenues au moyen desdits moyens de translation (5) permettant d'écarter lesdites assises à translater et lesdits accoudoirs à translater les uns des autres, lorsque ladite banquette modulable de seconde classe est transformée en banquette de première classe, ou de resserrer lesdites assises à translater et lesdits accoudoirs à translater les uns contre les autres, lorsque ladite banquette modulable (1) de premiere classe est transformée en banquette de seconde classe.
Patent CA-2260653-A1 (CA)
Title: A method and a device for maintaining the performance quality of a code-division multiple access system in the presence of narrow band interference
Inventor: JAGGER CHARLES E
IPC: H04B1/707
Filed: 1999-02-02
Abstract: A method and device which dynamically detects, tracks and filters interfering signals with sufficient speed (i.e. within one IS-95 CDMA data frame period, or 20ms) and fidelity to eliminate or greatly reduce the deleterious effects of narrow band interferon signals on a CDMA link. When inserted in an RF signal path an Adaptive Notch Filter (ANF) detects narrow band interferors above a threshold level within the CDMA signal. Detection is accomplished by continuous scanning of a preset excision band, e.g. a specified narrow band associated with an AMPS system. Detected interferors are then automatically acquired and suppressed. This is achieved by electronically placing a rejection notch at the frequency of the interferors. Multiple notch filters may be used to simultaneously suppress multiple interferors. In the absence of interferors a bypass mode is selected allowing the RF signal to bypass the notch. Upon detection of an interferon, a switch is made to a suppression mode where the interferon is steered through a first notch section and suppressed. Alternatively, an external control line may be used to select the bypass mode so that the signal is allowed to pass the notch section, regardless of interferon content.
Patent CA-2260924-A1 (CA)
Title: Rubber compositions containing fillers having aggregates containing different particle sizes
Inventor: AGOSTINI GIORGIO
IPC: C08K3/00
Filed: 1999-02-05
Abstract: A rubber composition containing a filler having individual aggregates containing both large and small particles, where the small particles are grafted onto the surface of the large particles. The small particles range from 1 to 30 weight percent of the overall weight of the filler. The large particles range from 70 to 99 weight percent of the overall weight of the filler. The small particles range in size of from 1 to 16 nanometers in diameter and the large particles range in size of from 17 to 500 nanometers in diameter.
Patent CA-2264832-A1 (CA)
Title: Procede et dispositif d'injection d'agent reducteur des nox
Inventor: JOHNK CARL
IPC: F23J7/00
Filed: 1997-09-09
Abstract: La présente invention concerne un procédé et un dispositif améliorés de réduction de la teneur en oxydes d'azote des effluents gazeux dégagés par la combustion de combustibles carbonés dans des unités de combustion pourvues d'un four à lit de solides fluidifié. Les gaz chauds produits par le four remontent à l'intérieur du four. Des surfaces de transfert thermique garnissant l'intérieur du four permettent de récupérer de l'énergie thermique des gaz chauds et des matières solides chaudes. Le procédé consiste alors, au moyen d'un dispositif d'injection intégralement connecté aux surfaces de transfert thermique, à introduire dans le four un agent réducteur des oxydes d'azote, et ce, de façon à maintenir l'agent réducteur à une température suffisamment basse lors de son introduction, et à le mélanger efficacement aux gaz chauds remontant principalement vers le haut.
Patent CA-2264919-A1 (CA)
Inventor: GILBERT P DANIEL
IPC: G01N15/08
Filed: 1997-09-17
Abstract: A method and an apparatus for detecting plugged sites and holes and for measuring of the water permeability properties of pervious machine fabrics is disclosed. Plugged sites in a permeable fabric are detected by sensing water pressure pulses occurring in the nozzle at the moment when a stream of water flowing through the nozzle contacts a plugged site on a fast running fabric.  The apparatus can be used on-line to simultaneously detect plugged sites and holes on a moving pervious fabric while monitoring its water permeability properties.
Patent CA-2265184-A1 (CA)
Inventor: MILLS GREGORY A
IPC: G02B6/44
Filed: 1999-03-09
Abstract: An optical ribbon (20) includes optical fibers (28) encased in a ribbon common layer (21). Ribbon common layer (21) is printed with ink dots (23) such that ample spacing between dots (23), and controlled print spacing intervals, reduce delta attenuation.
Patent CA-2265363-A1 (CA)
Title: Aqueous cleaning and disinfecting compositions having reduced irritation characteristics based on quaternary ammonium compounds including block copolymer surfactants and further surfactants
Inventor: MCCUE KAREN ANN
IPC: C11D1/722
Filed: 1999-03-16
Abstract: Aqueous disinfecting and cleaning compositions and concentrates which are efficacious against gram positive and gram negative bacteria, have relatively low volatile organic content ("VOC") and are surprisingly mild to the user of the compositions. The compositions include a quaternary ammonium compound as its primary germicidal active agent, have a low content of active constituents, and do not include organic solvents such as alcohols, glycols, or glycol ethers in significant amounts.
Patent CA-2266302-A1 (CA)
Title: Squid formed on a sapphire substrate and method for manufacturing the same
Inventor: NAGAISHI TATSUOKI
IPC: G01R33/035
Filed: 1999-03-23
Abstract: The present invention relates to a SQUID made of an oxide superconducting thin film is formed on a sapphire substrate. CeO2 film, RBa2Cu3O7-x film ("R" indicates a rare earth element chosen among a group formed Yb, Er, Ho, Y, Dy, Gd, Eu, Sm and Nd) and SrTiO3 film are deposited the substrate top of sapphire successively. Furthermore, an oxide superconducting thin film to be a SQUID is deposited on the SrTiO3 film.
Patent CA-2266543-A1 (CA)
Title: Methods and compositions for identifying receptor effectors
Inventor: FUERNKRANZ HANS A
IPC: C12Q1/68
Filed: 1997-09-24
Abstract: The present invention makes available a rapid, effective assay for screening and identifying pharmaceutically effective compounds that specifically interact with and modulate the activity of a cellular protein, e.g., a receptor or ion channel. The subject assay enables rapid screening of large numbers of compounds to identify those which act as an agonist or antagonist to the bioactivity of the cellular protein. The subject assay is particularly amenable for identifying surrogate ligands for receptors especially from small molecule or peptide libraries or from peptides produced by an autocrine system. Identification can be achieved via activation of a yeast signalling pathway, specially the yeast pheromone system pathway.
Patent CA-2271001-A1 (CA)
Inventor: CORBIN SARAH L
IPC: A61M39/24
Filed: 1998-09-04
Abstract: L'invention concerne un ensemble à soupape (10), permettant l'écoulement de fluide dans un premier sens et empêchant l'écoulement du fluide dans un autre sens, opposé au premier. Ledit ensemble comprend un logement supérieur (12), un logement inférieur (14) accouplé au premier logement pour former un ensemble logement s'étendant généralement axialement, une partie siège (26) de soupape définie au sein d'une partie périphérique interne du logement inférieur. La partie siège de soupape comporte une surface périphérique (38) s'étendant axialement et une surface s'étendant transversalement (44), sensiblement perpendiculaire à la surface périphérique interne s'étendant axialement. Un élément soupape (16) repose sur la partie siège dudit logement inférieur (14). L'élément soupape (16) comprend un rebord (30) qui s'étend depuis l'élément soupape dans un sens transversal et définit une surface périphérique orientée axialement (44). L'élément soupape (16) est retenu dans la partie siège (26) de soupape du logement inférieur avant l'assemblage au logement supérieur (12), par la surface périphérique interne (38) s'étendant axialement de la partie siège de soupape (26) comprimant transversalement la surface périphérique externe orientée axialement du rebord (30), de sorte qu'un ajustage par pression soit assuré entre eux. De plus, l'élément soupape comprend également une surface transversale inférieure (42) qui est séparée axialement de la surface s'étendant transversalement de la partie siège de soupape (44), une zone d'air (40) étant définie entre les deux surfaces transversales.
Patent CA-2275637-A1 (CA)
Inventor: SETAELAE SIMO
IPC: D21B1/18
Filed: 1997-12-12
Abstract: An arrangement for providing continuous grinding in a pulp grinder comprising a feed chute and a piston in the feed chute moving lengthwise of the feed chute for pressing the wood in the feed chute against a grindstone. The arrangement comprises rotary feed members (6) between the piston (5) and the grindstone (1) on the sides of the feed chute (2) for pushing the compressed wood (3) further against the grindstone (1). Also, the arrangement comprises a closing member (7) that can be pushed between the compressed wood (3) and the piston (5) to prevent the wood (3) from moving backward with the piston (5) as the piston (5) is moved to the initial position, ready for the stroke, to allow the feed of a new batch of wood.
Patent CA-2276344-A1 (CA)
Title: Medium heavy duty ankle brace
Inventor: SCHRIJVER FLOOR
IPC: A61F5/01
Filed: 1998-01-05
Abstract: The invention relates to a medium heavy duty ankle brace which comprises at least at the medial side (innerside of the foot) at least a flexible bracing element, which is anatomically adapted to the lower leg, the ankle and the foot shape, in which the bracing element shows a recess at the location of the medial ankle joint and has a substantially flat sole part below the foot. According to the invention the ankle brace is built up from different asymmetrical shell parts, a somewhat flexible medial part (2), with one or more different local stiffening elements, and a much more elastic lateral part (11) having possibly one or more different local stiffening elements.
Patent CA-2276480-A1 (CA)
Title: Thickened, highly aqueous liquid detergent compositions
Inventor: WILLIAMS JOHNNY JR
IPC: C11D3/37
Filed: 1997-12-09
Abstract: Low cost, highly aqueous, thickened heavy duty liquid laundry detergent compositions are provided. Such compositions contain relatively low levels of surfactant materials, certain viscosity-enhancing agents, and very large amounts of water. Only minimal amounts of other detergent composition adjuvants are permitted in such compositions.
Patent CA-2277633-A1 (CA)
Title: Split-key key-agreement protocol
Inventor: VANSTONE SCOTT A
IPC: H04L9/30
Filed: 1999-07-19
Abstract: This invention relates to a method for generating a shared secret value between entities (E) in a data communication system, one or more of the entities having a plurality of members (M ij) for participation in the communication system, each member having a long term private key (P rij) and a corresponding long term public key (P Uij). The method comprises the steps of generating a short term private (x ij) and a corresponding short term public key (X ij)for each of the members (M ij); exchanging short term public keys (X ij) of the members within an entity (i). For each member then computing an intra-entity shared key by mathematically combining the short term public keys (X ij) of each the members computing an intra-entity public key (s i) by mathematically combining its short-term private key (x ij), the long term private key (P rij) and the intra-entity shared key. Next for each entity combining intra-entity public keys (s i) to derive a group short-term Si public key; each entity transmitting its intra-entity shared key (X i) and its group short term public (S i) key to the other entities; and each entity computing a common shared key K by combining its group short term public key (S i), with the intra-entity shared key (~i), and a group short term public (~i) key received from the other entities.
Patent CA-2279879-A1 (CA)
Inventor: GERSHMAN ALBERT W
IPC: G01M3/22
Filed: 1999-08-10
Abstract: The presence and flow of water or other liquids in pipes, such as gas pipes, is observed by viewing through an opening in the pipe. A colorant liquid which disperses in the liquid is inserted into the pipe and an illuminating element such as an chemiluminescent device is positioned in the pipe at the site of suspected liquid.
Patent CA-2283923-A1 (CA)
Inventor: DAY FRANKLIN J
IPC: F16C3/06
Filed: 1998-03-12
Abstract: A unidirectional power drive mechanism operated by a plurality of crank arms (20L, 20R) and associated one-way clutches (16L, 16R) connecting the crank arms independently to a crankshaft (34, 58) arranged to provide a unidirectional power output. The crank arms (20L, 20R) are clear to rotate through full revolution to drive the crankshaft through an attached adaptor (10L, 10R) which may include a flange (11) to deliver power in a forward direction, either with one of the crank arms separately applying torque to the crankshaft, or with both crank arms together applying torque in a forward direction, but each crank arm is free to rotate rearwardly with respect to the crankshaft, as the clutches (16L, 16R) operate. The power drive mechanism may be used to power a bicycle (9), an electrical generator (57), or other mechanisms.