baber/WOPTO huggingface dataset:
Patent CA-2240413-A1 (CA)
Title: Selective alkylations of cyclodextrins at the levels of minimal effective basicity
Inventor: PITHA JOSEF
IPC: C08B37/16
Filed: 1996-12-18
Abstract: By controlling basicity of the reaction, it is possible to alkylate preferentially the secondary hydroxyls of cyclodextrins. These hydroxyls surround the principal, wide, entry into the cyclodextrin cavity and, thus, their substitution by suitably chosen substituents can improve the formation of inclusion complexes. By methods of the invention, cyclodextrin derivatives substituted with fused 1,4-dioxane ring(s) can be obtained. If a reagent with one alkylating moiety is used, a mixture of ethers of cyclodextrin is formed. Using methods of this invention, up to 96 % of the substitution can be directed to the secondary hydroxyls.
Patent CA-2240676-A1 (CA)
Title: Apprentissage d'un canal dans un systeme recepteur multicanal
Inventor: LANGBERG EHUD
IPC: H04L25/03
Filed: 1996-12-20
Abstract: Dans un système récepteur multicanal (100) matérialisant l'invention, un canal "formé", lequel est actif et propage des signaux de données, peut être utilisé pour assurer l'apprentissage de n'importe quel autre canal du récepteur. Chaque canal du système comporte une entrée (105) et une sortie (123), chaque entrée recevant une partie différente d'un signal de données initial. Chaque canal comprend un filtre adaptatif (10) couplé entre son entrée et sa sortie en vue de propager jusqu'à cette dernière les signaux reçus au niveau de son entrée. Un premier canal "formé" sert à assurer l'apprentissage d'un deuxième canal par couplage de la sortie du premier canal à la sortie du deuxième canal en vue d'assurer l'apprentissage du filtre adaptatif du deuxième canal. L'apprentissage de ce dernier s'achève par la transmission des mêmes données aux premier et deuxième canaux du récepteur.
Patent CA-2241624-A1 (CA)
Title: Radicicol derivatives
Inventor: MIYATA MAYUMI
IPC: C07D313/00
Filed: 1997-10-24
Abstract: Radicicol derivatives having an antityrosine kinase activity and represented by general formula (I) or pharmacologically acceptable salts thereof, wherein R1 and R2 are the same or different and each represents hydrogen, alkanoyl, alkenoyl, tert-butyldiphenylsilyl, or tert-butyldimethylsilyl; R3 represents Y-R5 {where Y represents optionally substituted alkylene, R5 represents CONR6R7 (where R6 represents hydrogen, hydroxy, optionally substituted lower alkyl, optionally substituted higher alkyl, etc. and R7 represents hydroxy, substituted lower alkyl, etc.), CO2R12 (where R12 represents substituted lower alkyl, optionally substituted higher alkyl, etc.), etc.}; X represents halogeno or is bonded to R4 to represent a single bond; and R4 is bonded to X  to represent a single bond or represents hydrogen alkanoyl, etc.
Patent CA-2241974-A1 (CA)
Title: System and method for adaptive measurement collection and handoff queuing in a radio telecommunications network
Inventor: BERTACCHI MARIO
IPC: H04W36/30
Filed: 1997-01-14
Abstract: A system (43) and method for improving handoff performance of a cellular telecommunications network (20) having a serving exchange and a serving cell (C) in which a mobile station is engaged in a call. The system adapts a first timeout period during which signal strength measurements are collected from a plurality of cells (A, B, D, G and H) that neighbor the serving cell. A variable timing mechanism (45) measures time periods starting when a handoff measurement request is generated. The system then sets the variable timing mechanism (45) to measure a specified time period for each of the plurality of cells, collects the signal strength measurements during the specified time period, and processes the signal strength measurements when the specified time period expires. The system (43) also adapts a second timeout period during which a handoff request from the mobile station is queued while awaiting an available voice channel in a target cell for handoff. The system (43) measures a default value for the second timeout period, changes the default second timeout period to an adapted second timeout period for which there is a maximum probability of handing off a call associated with the handoff request, and determines whether the handoff request should be queued for the default second timeout period or the adapted second timeout period.
Patent CA-2242205-A1 (CA)
Title: Apparatus for controlling the rental and sale of age-controlled merchandise and for controlling access to age-controlled services
Inventor: DIMARIA PETER C
IPC: G06Q30/02
Filed: 1998-06-30
Abstract: The present invention relates to a method and apparatus for controlling the distribution of age controlled merchandise or services based upon inputting personal information data encoded on an identification document,  such as a driver's license, to determine whether the transaction is legal.
Patent CA-2243207-A1 (CA)
Inventor: COUFFIN JEAN-BERNARD
IPC: B21C1/00
Filed: 1998-07-16
Abstract: A novel nickel base alloy has the composition (by wt.) greater than 24.5 to 26.5 (preferably 24.8-25.2)% Cr, 13.5-16.5 (preferably 14.8-15.2)% Mo, optionally one or more of (preferably up to 0.2%) N, (preferably up to 0.4%) Al and (preferably up to 0.04%) Mg, balance Ni and impurities. Also claimed are (i) cold drawn wire or rolled sheet of the above nickel alloy; (ii) a welding electrode consisting of a cold drawn wire of the above nickel alloy; and (iii) a process for welding a duplex or austenitic super-stainless steel or a nickel base alloy, in which the added metal is a cold drawn wire or rolled sheet of the above nickel alloy.
Patent CA-2243981-A1 (CA)
Title: Food and vitamin preparations containing the natural isomer of reduced folates
Inventor: BAILEY STEVEN W
IPC: A23K1/16
Filed: 1997-01-31
Abstract: A composition for human or animal consumption for supplying folate which includes a natural isomer of reduced folate, such as (6S)-tetrahydrofolic acid, 5-methyl-(6S)-tetrahydrofolic acid, 5-formyl-(6S)-tetrahydrofolic acid, 10-formyl-(6R)-tetrahydrofolic acid, 5,10-methylene-(6R)-tetrahydrofolic acid, 5,10-methenyl-(6R)-tetrahydrofolic acid, 5-formimino-(6S)-tetrahydrofolic acid, and their polyglutamyl derivatives is disclosed. Such compositions include multivitamin preparations (with or without minerals and other nutrients); breakfast foods such as prepared cereals, toaster pastries and breakfast bars; infant formulas; dietary supplements and complete diet and weight-loss formulas and bars; animal feed (for example pet foods) and animal feed supplements (such as for poultry feed). The amount of the natural isomer of a reduced folate in a composition for human consumption can range between about 5 % and about 200 % of the daily requirement for folic acid per serving or dose.
Patent CA-2244607-A1 (CA)
Title: Retrofit canopy luminaire and method of installing same
Inventor: FISCHER JERRY F
IPC: F21V23/02
Filed: 1998-07-31
Abstract: A retrofit luminaire assembly for mounting in an existing canopy fixture housing and methods of installing same. The retrofit luminaire assembly includes a planar panel having electrical control elements mounted to an upper surface of the panel. A lamp is received in a lamp socket mounted to the panel with a light-emitting section of the lamp extending away from a lower surface of the panel. A lens is mounted to the lower surface of the panel for enclosing the light-emitting section of the lamp. The panel preferably has a pair of oppositely directed pivot members which are adapted to engage with inwardly directed flanges of the canopy fixture housing to removably and pivotally support the panel for movement between a vertical, inoperative position and a horizontal, operative position. Methods of installing the retrofit luminaire assembly in the existing canopy fixture housing are also disclosed.
Patent CA-2245151-A1 (CA)
Title: Improved process for obtaining insulin precursors having correctly bonded cystine bridges
Inventor: RUBR DER FRANZ-JOSEF
IPC: C07K14/62
Filed: 1998-08-14
Abstract: The present invention relates to an improved process for obtaining a precursor of insulins or insulin derivatives having correctly bonded cystine bridges in the presence of cysteine or cysteine hydrochloride and of a chaotropic auxiliary.
Patent CA-2248097-A1 (CA)
Title: Dredging apparatus
Inventor: BEAUMONT ROBERT WALTER DEANE
IPC: E02F5/00
Filed: 1997-02-27
Abstract: A dredging apparatus comprising a body (11) mounting thrust means (23, 24) to direct, in use, a wash of water downwards towards an area of sea bed or the like, connection means (12, 13) to connect said dredging apparatus to a support means (10) above the sea bed, said connection means (12, 13) including attitude adjusting means to selectively adjust the attitude of the dredging apparatus in a side to side (roll) orientation.
Patent CA-2250960-A1 (CA)
Title: Cabinet skate
Inventor: ANDERMAN TERRY J
IPC: F16M11/24
Filed: 1997-04-01
Abstract: The present invention comprises a dish-shaped cabinet skate (20) made of an ultra high molecular weight polyethylene, which is applied to furniture feet (10). The skate (20) is adapted to be affixed in a permanent or semi-permanent manner on standard office furniture feet (10). The skate (20) has an inherently low coefficient of friction with respect to conventional carpeting, thus allowing easy sliding. The skate (20) is shaped to include large radius bends at the edges and a slight crowning (32) of the bottom surface to further reduce resistance to sliding.
Patent CA-2251566-A1 (CA)
Title: A method of muting a non-speaking cellular telephone caller participating in a conference call
Inventor: KASTURIA SANJAY
IPC: H04M1/724
Filed: 1998-10-27
Abstract: A facility is provided in wireless communications system which causes a base station to substitute predetermined signals for speech and/or noise signals that are received from a wireless station that has entered a muting request, in which the predetermined signals, may be, for example, silence.
Patent CA-2252130-A1 (CA)
Title: Optical multiplexing/demultiplexing device having a wavelength dispersive element
Inventor: LUNDGREN KENT R
IPC: G02B6/34
Filed: 1998-10-28
Abstract: A method and device for optical multiplexing or demultiplexing of optical signals. The device has a grating for dispersing an input beam into a plurality of sub-beams which are focused by a simple lens and a GRIN lens on a glass block having a plurality of waveguides embedded therein with a predetermined spacing therebetween. In order to correct for an offset in alignment, e.g. due to ambient temperature changes, between the sub-beams and the waveguides of the block, the latter is mounted to a thermally activated actuator for an controlled angular displacement which is selected to compensate for the offset.
Patent CA-2254424-A1 (CA)
Title: Toilet cleaner controller device
Inventor: RIVERA MOISES RAMOS
IPC: E03D9/02
Filed: 1998-11-24
Abstract: A toilet cleaner controller device for use in a toilet having a tank equipped with a fill device functioning after a flush to refill the tank with water to a selected level, with this toilet cleaner controller device having therein a reservoir adapted to receive a cleansing chemical able to be dissolved in water.  The reservoir has an inlet connection enabling it to be connected to receive water from the water-supplying pipe of the fill device of the toilet tank during the procedure in which the toilet tank is being refilled after a flush.   In this way a  concentrated cleansing  solution will be maintained in the reservoir.  A  valve is operably installed in the controller device, connected to receive concentrated solution from the reservoir.  The valve has an outlet port, with the valve enabling the flow of concentrated solution from the outlet port to the toilet to be readily controlled.   I prefer to use a multiposition valve positionable such that the strength of the cleansing solution can be readily modified, with this valve also enabling the cleansing fluid to be delivered only to the toilet bowl, or simultaneously to both the toilet bowl and the toilet tank.
Patent CA-2256871-A1 (CA)
Title: Method for supporting one or more seamless rear projector screens
Inventor: GOSLING GEOFF
IPC: G03B21/56
Filed: 1998-12-22
Abstract: There is described an improved system for retaining a video screen in a frame comprising a video screen, a frame for supporting the video screen along at least a portion of the screen's peripheral edges, and a mechanism for biasing the edges of the screen against the frame to hold the screen in position relative to the frame.
Patent CA-2259763-A1 (CA)
Inventor: HSU CHIH-PIN
IPC: C08G63/91
Filed: 1999-01-19
Abstract: Unsaturated polyetherester resins, and processes for making them, are described which are useful for making curable thermoset resin compositions, intermediates for curable thermoset resin compositions, fiber-reinforced polymer composites, intermediates for making skin laminates for gel coated fiber-reinforced composites and gel coated polymer laminates. The unsaturated polyetherester resin is obtainable by reacting at least one acid-terminated unsaturated polyetherester resin with at least one aromatic polyol having at least one nonprimary hydroxy group to produce an unsaturated polyetherester resin at least partially end-capped with an aromatic polyol. The described processes, compositions, methods and uses improve the chemical and/or water resistance of resin compositions, particularly composite materials having a gel coat. That improvement has special significance in outdoor and marine applications, bathtubs and shower stalls and environments exposed to chemicals such as industrial and commercial applications.
Patent CA-2260423-A1 (CA)
Title: Pharmaceutical composition of hedgehog proteins and use thereof
Inventor: LANG KURT
IPC: A61K47/42
Filed: 1999-01-28
Abstract: A pharmaceutical composition of a hedgehog protein which is characterized in that the hedgehog protein is bound to a hydrophilic carrier that is biocompatible and biodegradable wherein the carrier is a polymer which - binds the hedgehog protein as a negatively-charged carrier as a result of ionic interactions, - does not denature the hedgehog protein when it binds to the carrier, - contains at least 0.1 to 2 negatively-charged residues per monomer under neutral conditions, - contains the charge in the form of acidic groups, - has an average molecular weight of at least 50,000 Da - and contains no agarose reversibly and actively releases hedgehog proteins in vivo from a carrier in a delayed manner.
Patent CA-2261016-A1 (CA)
Inventor: BOGOSIAN GREGG
IPC: C07K14/535
Filed: 1997-07-17
Abstract: A method for producing recombinant peptides and proteins having a diminished retention of N-formyl-methionine by coexpressing a peptide deformylase enzyme is disclosed. Also disclosed are substantially deformylated protein compositions and transformed bacterial cells and DNA vectors useful for acheiving such deformylation.
Patent CA-2261174-A1 (CA)
Title: Olefin polymerization catalyst composition comprising group 13 compound
Inventor: STEVENS JAMES C
IPC: C08F4/64
Filed: 1997-07-18
Abstract: Catalyst compositions that are highly tolerant of catalyst poisons comprising a catalytic derivative of a Group 4 metal complex and a Group 13 metal compound according to the formula R1 2Me(NR2 2), wherein R1 and R2 independently each occurrence is a hydrocarbyl, silyl, halocarbyl, halohydrocarbyl, hydrocarbyl-substituted silyl, halocarbyl-substituted silyl, or halohydrocarbyl-substituted silyl group, said R1 and R2 having from 1 to 30 carbon, silicon, or mixtures of carbon and silicon atoms, and Me is a Group 13 metal, the molar ratio of complex to Group 13 compound being from 1:0.1 to 1:100.
Patent CA-2266826-A1 (CA)
Inventor: KIRCHNER GEORG
IPC: F16B37/04
Filed: 1999-03-23
Abstract: An attachment device for assembling a structural component on a sectional rail having an elongated slot on one side thereof. The attachment device consists of a rail nut which fits over edges of the rail situated along side the elongated slot and a clamp bolt which is screwed into the rail nut. A spring element is arranged between a washer mounted on the rail nut and the structural component.
Patent CA-2267034-A1 (CA)
Title: Communication system architecture and a connection verification mechanism therefor
Inventor: CABLE JULIAN FRANK BARRY
IPC: H04L12/70
Filed: 1999-03-26
Abstract: A communication system typically comprises a number of interconnected broadband-narrowband interfaces (304, 402-404) that together interact to provide a communication resource (400) that can support a call across the system. At a time when the communication resource (or a portion thereof) is apparently in place, a terminating node of a broadband- narrowband interface sends a verify-request message (452) backwards across the communication resource. A connection broker (322), coupled to both ends of the communication resource in a particular broadband- narrowband interface (404), is aware of the issuance of the verify- request message, and is therefore able to assess and report, principally, on path connectivity of the communication resource (either within the broadband-narrowband interface or between adjacent interfaces). More particularly, the connection broker expects the arrival of a path connectivity message (454, 460) issued from an end of the broadband- narrowband network responsive to the verify-request message and, as such, can provide an appropriate report (458, 470, 480) upon the timely receipt, or not, of the path connectivity message. Indeed, the verify- request message may also function to confirm path continuity.
Patent CA-2267457-A1 (CA)
Title: Multi-layer magnetic tag
Inventor: COGGILL CHRISTOPHER JOHN
IPC: G06K7/08
Filed: 1997-09-29
Abstract: A magnetic marker or tag is disclosed which comprises (a) a first magnetic material characterised by high permeability, low coercivity and a non-linear B-H characteristic; and (b) a second magnetic material which is capable of being permanently magnetised, said first and second magnetic materials being superimposed one on the other and advantageously being substantially coterminous. The second magnetic material is preferably of medium coercivity. Selected regions of said second magnetic material can carry magnetisation such as to magnetically divide the first magnetic material into a series of magnetically discrete zones, the length of said magnetically discrete zones and/or the lengths of said magnetised regions ("gaps") of said second material constituting elements of a code.
Patent CA-2271310-A1 (CA)
Inventor: JONSCHKER GERHARD
IPC: B27N7/00
Filed: 1997-11-14
Abstract: Le liant de fonderie décrit est obtenu par modification de la surface de (a) des particules inorganiques colloïdales avec (b) un ou plusieurs silanes de la formule générale (I): R¿x?-Si-A¿4-x?, dans laquelle les radicaux A sont identiques ou différents et représentent des groupes hydroxyles ou des groupes clivables par hydrolyse, à l'exception de méthoxy, les radicaux R sont identiques ou différents et représentent des groupes non clivables par hydrolyse et x vaut 0, 1, 2 ou 3, x?1 dans au moins 50 % en volume des silanes, dans des conditions d'un processus sol-gel avec une quantité sous-stoechiométrique d'eau, par rapport aux groupes hydrolysables disponibles, de façon à former un sol nanocomposite. Le sol nanocomposite est le cas échéant à nouveau hydrolysé et condensé avant d'être mis en contact avec le sable de fonderie.
Patent CA-2274628-A1 (CA)
Title: Two-way in-flight radio telecommunication system and method
Inventor: WACKER PHILIP
IPC: H04B7/15
Filed: 1997-12-09
Abstract: A system and method for providing two-way in-flight radio telecommunications onboard an aircraft (41) are disclosed. The radio telecommunication system (30) includes a Gateway Mobile Switching Center (G-MSC) (37), an Aircraft In-flight System Controller (AISC) (31) located onboard a subscriber's aircraft (41), a Ground In-flight System Controller (GISC) (35), a satellite (33) to relay messages and calls from the GISC and AISC, and a Home Location Register (HLR) (39) which provides routing and location information for use by the GISC  and the G-MSC. In an alternate embodiment of the invention, a system and method for using a mobile phone (114) on an aircraft are disclosed. A mobile phone (114) is connected to a seat terminal (113) located on an aircraft by a co-ax cable (115). The radio frequency (RF) signals produced by a mobile phone pass through a co-ax cable (116) to an Airborne Radio Base Station (A-RBS) (112). The A-RBS converts the RF signals into signals which do not interfere with the aircraft's navigational and communication equipment and are compatible with the GISC (35) and multiple cellular networks. These converted signals are then transmitted via satellite (33) to a cellular network (49).
Patent CA-2277497-A1 (CA)
Inventor: HATANO MASAYUKI
IPC: G06F17/50
Filed: 1999-07-16
Abstract: A designing apparatus comprises symbol mark memory means for storing fluid controllers usable in fluid control devices in terms of symbol marks representing the functions, fluid channels and contours of the controllers, and a flowchart preparing means for preparing a flowchart of a fluid control device represented by symbol marks. The flowchart preparing means successively selects controllers, such as valves and massflow controllers, from a symbol mark file in the memory means, arranges the selected controllers on a screen as suitably positioned, automatically selects a suitable coupling member for interconnecting adjacent two of the controllers from a coupling member data file and automatically arranges the controllers and the coupling members thus selected to prepare a flow chart.
Patent CA-2279732-A1 (CA)
Title: Method of inhibition of human glycogen phosphorylase
Inventor: HOOVER DENNIS JAY
IPC: C12Q1/48
Filed: 1999-08-05
Abstract: The present invention is directed to a novel binding site for a glycogen phosphorylase inhibitor found within a glycogen phosphorylase enzyme. The novel binding site allows the design novel of glycogen phosphorylase inhibitors.
Patent CA-2279861-A1 (CA)
Inventor: LOOYKENS MARINUS A H
IPC: G11B15/12
Filed: 1998-11-13
Abstract: L'invention concerne un dispositif permettant d'enregistrer un signal d'information et un signal CTL (logique à transistors complémentaires) sur un support (16) d'enregistrement magnétique. Le dispositif comprend une entrée (2) recevant le signal d'information et au moins une tête (10) d'écriture placée sur un tambour (14) porte-tête, permettant d'écrire le signal d'information en produisant des pistes hélicoïdales. Le dispositif comprend en outre un générateur (36) permettant de générer un signal CTL de fréquence spécifique et une tête (34) d'écriture permettant d'écrire le signal CTL et produisant une piste longitudinale. Dans un premier mode d'enregistrement, une portion du signal d'information est enregistrée par la tête (10) d'écriture, produisant une piste d'information pendant chaque révolution du tambour porte-tête sur le support d'enregistrement. La fréquence de ce signal CTL est telle qu'un flanc du premier type dans le signal CTL est écrit dans la piste CTL pour chacune des pistes d'information écrites par cette tête (10) d'écriture. Le support (16) d'enregistrement est transporté à une première vitesse prédéterminée dans ce premier mode d'enregistrement et le tambour (14) porte-tête tourne à une vitesse de rotation prédéterminée. Dans un second mode d'enregistrement, la tête (10) d'écriture écrit une portion du signal d'information en produisant une piste d'information pendant chaque n-ième révolution du tambour (14) porte-tête sur le support d'enregistrement. Dans ce second mode d'enregistrement, le support d'enregistrement est transporté à une seconde vitesse qui correspond sensiblement à la première vitesse divisée par n. Le tambour porte-tête tourne à la même vitesse de rotation prédéterminée et un signal CTL qui a la même fréquence prédéterminée est généré dans le second mode d'enregistrement. n est un nombre entier supérieur à 1.