baber/WOPTO huggingface dataset:
Patent CA-2203449-A1 (CA)
Title: Paper guide for high speed document reproduction
Inventor: RACKETT RUSSELL C
IPC: B65H29/70
Filed: 1997-04-23
Abstract: This invention discloses a method and apparatus for properly placing copy sheets from a high speed copy machine into an exit  tray.   The invention utilizes a variable speed motor to control the rollers which reside at the end of the paper path.  One or more paper guides mounted to the drive rollers, enable the motor to operate over a wide range of speeds, yet still work efficiently. The motor accelerates to its highest speed as the copy sheet enters the nip between the drive and idler rollers, and is decelerated to its slowest speed as the trailing edge of the copy sheet exits the nip.  The trailing edge of the copy sheet then moves off of the roller and onto the paper guide.   The speed of the motor can then be increased without having to wait for the copy sheet to move into the output area.   This substantially reduces the period of time required to reproduce copies.
Patent CA-2205428-A1 (CA)
Title: Cleansing articles with controlled detergent release and method for their manufacture
Inventor: PALAIKIS LIANA V
IPC: C11D11/00
Filed: 1995-11-08
Abstract: The cleansing article comprises a porous pad which includes a controlled detergent release composition comprising: polyacrylamide (preferably having a weight average molecular weight greater than 200,000) and detergent preferably blended to provide a weight ratio of polymer solids: detergent solids between about 1:9 and about 1:100 and more preferably between about 1:12 and about 1:30. The method comprises preparing a coatable polymer/detergent blend comprising polyacrylamide, detergent and a liquid vehicle which on drying forms a controlled detergent release composition, applying said coatable blend to a porous pad, and drying said blend to provide said controlled detergent release composition. The controlled detergent release composition is substantially retained within the pad for subsequent use and thereafter slowly released when used.
Patent CA-2206423-A1 (CA)
Inventor: YAMAMOTO HIROSHI
IPC: A61K38/00
Filed: 1995-11-29
Abstract: A monoclonal antibody, which has reactivity with human von Willebrand factor, which has action to inhibit RIPA (ristocetin-induced platelet aggregation), BIPA (botrocetin-induced platelet aggregation), and SIPA (shear stress-induced platelet aggregation) of human platelet, and which does not express bleeding action in an medicinally effective dose to exhibit antithrombotic action, is used as an active ingredient of an antithrombotic agent.
Patent CA-2207145-A1 (CA)
Inventor: RENCKEN DIETER W
IPC: H04M3/42
Filed: 1997-06-05
Abstract: An audiovisual mail system for an audiovisual telephone system is provided. Unanswered calls in the audiovisual telephone system are directed to a messaging server. Audiovisual phone messages are stored in mass storage within the messaging server. In response to a command from a system subscriber, the audiovisual phone message stored in the mass storage are sent to the system subscriber. In the preferred embodiment, The audiovisual phone message are then played in real time by the system subscriber.
Patent CA-2210030-A1 (CA)
Title: Extensions to distribute mac protocols with collision avoidance using rts/cts exchanges
Inventor: REZVANI BABAK
IPC: H04L12/56
Filed: 1997-07-08
Abstract: Methods and arrangements are described herein to improve the performance (measured e.g. in terms of throughput) of a RTS/CTS based distributed media access control protocol.  The medium reservation is done in a hierarchical fashion where first the shared medium is reserved for two stations called the participants. All other stations called observers stay quiet during the time reserved for the participants. In this fashion, a shared medium can be reserved for a subset of the plurality of devices. During this period called the reserved period, a master (or primary), and a slave (or secondary) station attribute can be given to the participating devices and the medium can be shared using another medium coordination algorithm which is not necessarily the same as the one used to reserve the medium for a reserved period in the first place.  After the medium is reserved, the participating devices can establish a conventional point-to-point connection within the reserved time period between participating devices for a predefined period of time. Specifically, the primary attribute can be exchanged with a secondary attribute which in effect gives the control of the shared medium during the reserved period to another station different from the one that originally was assigned the primary attribute. During the reserved time, the secondary can signal the primary station that it has data to send to the primary station and request that the primary and secondary roles or attributes to be exchanged. In the case that a role exchange takes place, the control of the medium is transferred from one station to another and data transfer in an opposite direction can take place without requiring another reservation attempt. In essence, this reduces the additional time in contention mode. Furthermore, in another aspect of the invention observing stations which are not participating in the reservation can be invited to join the initial reservation as secondary stations if this does not cause any interference to any other existing reservations. In other aspects of the invention, we define a number of additional extensions in the RTS/CTS exchange to improve the efficiency of the medium reservation by piggy-backing any reservation specific signals on data packets or defining new response frames such as Hold-to-Send (HTS) and Free-to-Send (FTS) which are used for flow control techniques in response to a congested receiving station.
Patent CA-2211896-A1 (CA)
Title: Wavelength and bandwidth tunable optical system
Inventor: LI JINGHUI
IPC: G02B6/34
Filed: 1997-07-29
Abstract: A system for modifying an input optical signal by reducing its bandwidth and modifying its central wavelength has an optical circulator with at least three ports and at least two optical filters coupled to consecutive ports of the circulator. The first filter produces a predetermined reflected band off the input optical signal. The second filter produces a predetermined transmission band as a part of the reflected band. Either or both of the optical filters are tunable to shape and trim the input signal in a predetermined manner. A multi-channel and cascade configurations may be formed. The system may serve e.g. as a tunablefilter or as an add/drop module in WDM communication networks.
Patent CA-2212196-A1 (CA)
Inventor: STARK IAIN
IPC: A61B6/00
Filed: 1997-08-01
Abstract: A  mechanical  support  structure  coordinates  patient positioning and medical diagnostic equipment positioning in a unified system.  The position relative to a patient table of a radiation detector, such as a scintillation camera head,  is conveniently and accurately adjustable from an operator control panel provided on a pendant hand control.   Each degree of freedom afforded the detector is accomplished independently of the other and, if desired, simultaneously, or in any desired combination.  To perform static imaging the separation between the detector and the patient table is adjustable, as is the lateral position of the detector, hence along the span of the patient  table.    The  plane  of  focus  of  the  detector  is selectable within a range of pivot angles.  Alternatively, to accomplish ECT imaging,  the detector is orbited about the patient at a selected intermediate position defined by the combination of the rotation of the rotor or ring,  and the vertical translation to generate a selected radius of rotation.          This orbital motion may be circular relative to a fixed patient position or, if desired, may be non-circular by adjusting the effective radial position of the scintillation detector.
Patent CA-2214550-A1 (CA)
Inventor: BOGDAN PAULA LUCY
IPC: B01J37/02
Filed: 1997-09-02
Abstract: A novel catalyst and the use thereof in a hydrocarbon conversion process is disclosed. The catalyst comprises a refractory inorganic oxide, platinum-group metal, Group IVA(IUPAC 14) metal, and europium in a specified ratio. Utilization of this catalyst in the conversion of hydrocarbons, especially in reforming, results in significantly improved selectivity to the desired gasoline or aromatics product.
Patent CA-2216323-A1 (CA)
Title: Process for the production of 3-aryl-uracils
Inventor: STING ANDREA-ROLF
IPC: C07D405/10
Filed: 1997-09-19
Abstract: Compounds of formula I                      (see fig.I)        (I) wherein R1 signifies methyl or ethyl; R2 signifies -CF3, -CCIF2, -CCI2F or -C2F5; Q is a group (see fig. II),       (see fig. III),      (see fig. IV), (see fig. V),        (see fig. VI),       (see fig. VII), (see fig. VIII),       (see fig. IX),     (see fig. X) (see fig. XI),  (see fig. XII)   or   (see fig. XIII);     and the remaining substituents have the significance given under formula I, are produced whereby a compound of formula II                         O=C=N-Q (II) wherein Q has the significance given under formula I, is reacted at a temperature of -5°C to +40°C with an enamine of formula III       (III), wherein R1 and R2 have the significances given under formula I, and R19 signifies C1-C6-alkyl, in pure dimethylformamide, dimethyl sulphoxide, acetonitrile, propionitrile, ethyl acetate, tetra-hydrofuran, dioxane, N-methylpyrrolidone, methyl-tert.-butylether, dimethylacetamide or toluene or mixtures thereof as solvents, in the presence of 0.2 to 0.4 equivalents of a base selected from potassium tert.butylate, sodium tert.butylate, sodium methylate, sodium ethylate, potassium methylate, potassium ethylate, sodium hydride, potassium hydride, sodium pentylate, potassium pentylate and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU).
Patent CA-2219044-A1 (CA)
Title: Extensions to distributed mac protocols with collision avoidance using rts/cts exchanges
Inventor: REZVANI BABAK
IPC: H04L29/06
Filed: 1997-07-08
Abstract: In a communications network having a plurality of stations and a shared common communications medium using a collision avoidance media access protocol for communication between the stations; in which medium access is granted to a pair of stations obtaining a successful reservation of the medium; the pair of stations comprising a requester station and a target station; wherein the communication medium is reserved based on requester transmission of a Request-to-Send (RTS) control frame and the reply thereto by a target station with a Clear-to-Send control frame when the target station is ready to receive data; a method of transmission control comprising the following; if the target station is not ready to receive data from the requesting station the sending of a Hold-to-Send (HTS) control frame by the target station to the requesting station; the target station recording identification of the requesting station; the requesting station recording the target station as being inhibited.
Patent CA-2219913-A1 (CA)
Title: Organic pollutant removal system and method
Inventor: BONCZYK PAUL A
IPC: B60H3/00
Filed: 1996-04-12
Abstract: The present invention addresses organic pollutant removal from enclosed environments such as a room or within a vehicle. A photocatalytic semiconductor coating located on the interior surface of a window or windshield is illuminated with UV light, thereby dissociating water on the surface thereof to form hydroxyl radicals. These hydroxyl radicals then oxidize organic pollutants adsorbed to the coating.
Patent CA-2223235-A1 (CA)
Title: Detection of htlv antibodies utilizing recombinant proteins
Inventor: DEVARE SUSHIL G
IPC: C07K14/15
Filed: 1996-06-04
Abstract: Assays utilizing HTLV-I and HTLV-II recombinant antigens to detect antibody to HTLV in a test sample. Antigens utilized include HTLV-I gp46, HTLV-I gp21, HTLV-I p24, HTLV-II gp21 and HTLV-II p24 and any combination thereof. Test kits which include these HTLV-I and HTLV-II antigens, as well as the plasmids from which these recombinant antigens were produced, also are provided.
Patent CA-2224744-A1 (CA)
Title: Message status display
Inventor: BROWN ALLAN
IPC: G06Q10/10
Filed: 1997-12-12
Abstract: An external module mountable to a user device such as a computer monitor displays the status of received messages from a number of message receiving systems without requiring integration of the message receiving systems.  Three or more indicators are provided in a substantially continuous strip and a state of the indicators indicates a status of incoming messages  received  corresponding  to  each  of  the  message receiving systems.   An interface software module may be used to  check  the  creation  of  new  files  in  directories  for incoming messages used by each of the message receiving means to obtain the data concerning receipt of incoming messages. A dongle may be used to connect the display to a computer without taking up an output port.
Patent CA-2225783-A1 (CA)
Title: A data access arrangement having improved transmit-receive separation
Inventor: WHITNEY DAVID
IPC: H04B1/58
Filed: 1996-03-15
Abstract: A data access arrangement (DAA) having a transhybrid circuit for separating a transmit signal from a received signal by providing a transmit cancellation signal to the inverting input of a servo-feedback differential amplifier on the receive channel of the DAA. The cancellation signal is provided by a photodiode optically coupleable with a light emitting diode within an optical isolator on the transmission channel of the DAA. The gain of the cancellation signal can be independently controlled.
Patent CA-2226074-A1 (CA)
Title: Article carrier with integral handle
Inventor: FOGLE JAMES C
IPC: B65D5/462
Filed: 1997-02-25
Abstract: A carrier (10) having an integral handle (20) extending from one end panel to the other. The top panel is formed by overlapping flaps (38, 40) extending from the side panels (12). A handle strap (60) extending along the length of the carrier (10) is defined by slits (58, 60) in each of the top panel flaps (38, 40) and a reinforcing flap (44) is adhered to the overlapped top panel flap (40). The handle straps (60) overlie and are adhered to each other to form a two-ply handle (20). The reinforcing flap (44) spans the opening vacated by the handle straps (60) when the carrier (10) is lifted.
Patent CA-2229019-A1 (CA)
Title: Epoxy-azetinidones preparation and use thereof
Inventor: TOMIC MIRJANA
IPC: C07D405/04
Filed: 1998-03-10
Abstract: The present invention relates to new epoxy-azetidinones of the general formula I, which are prepared by epoxidizing azetidinones of the general formula II.         These compounds are useful intermediates for the preparation of new potential inhibitors of .beta.-lactamases.
Patent CA-2230703-A1 (CA)
Title: Apparatus for reducing wear on injection moulding gibs
Inventor: BRTKA JOHN
IPC: B29C45/40
Filed: 1998-03-02
Abstract: A moulding apparatus comprising a pair of opposed mould members which reciprocate relative to each other along a mould axis. At least one moulding element is mounted to one of the reciprocating mould members and is moveable relative thereto along an axis transverse to the mould axis. Gibs mounted to the reciprocating mould member retain the transversely moving mould element axially relative to the reciprocating mould member, and support the weight of the transversely moving mould member. A load bearing member is mounted to one of (a) the reciprocating mould member and (b) the transversely moving element, and is engageable with the other thereof, for carrying forces transverse to both the mould axis and to the transverse axis between the reciprocating mould member and the transversely moving element thereby to discourage wear of the gibs and increase the operating life thereof.
Patent CA-2232063-A1 (CA)
Title: Hand tool for applying adhesive strip material
Inventor: PEK RAYMOND
IPC: B29C65/00
Filed: 1998-03-13
Abstract: A hand tool for applying adhesive strip material to a glass sheet has a manually graspable body with a channel extendinq through it to receive the strip material. A positioning member adjacent the channel guides the tool along the edge of the glass sheet. The body includes a punch selectively operable to notch the strip material to facilitate corner formation, and a cutter selectively operable to sever the strip when application of the strip to the glass sheet has been completed. Actuators for the punch and for the cutter are accessible on the exterior surface of the hand tool in locations where they can be operated by the user in a number of different holding positions.
Patent CA-2232678-A1 (CA)
Title: Molded bottle with trigger bulb pump
Inventor: LIBIT SIDNEY M
IPC: B65D47/34
Filed: 1996-09-17
Abstract: A bottle (20, 52, 58) for spraying or dispensing liquids comprising a principal chamber (22), a siphon tube (26) extending alongside the chamber (22) and a separate trigger bulb (28, 54) connected to the top (29) of the siphon tube (26). The siphon tube (26) is also pinch molded so that a valve seat (36) is formed therein.  When the trigger bulb (28, 54) is decompressed, the liquid that is drawn up into the siphon tube (26) cascades over into the trigger bulb (28, 54). When the trigger bulb (28, 54) is fully primed, any pressure subsequently applied to the trigger bulb (28, 54) will cause the liquid to be sprayed out of the bottle through the nozzle (50).
Patent CA-2235689-A1 (CA)
Inventor: BIER WILHELM
IPC: B01F5/06
Filed: 1996-07-18
Abstract: Cette invention concerne un micromélangeur statique comportant une enceinte de mélange et, en amont de celle-ci, un élément de canalisation servant à charger séparément dans ladite enceinte les fluides à mélanger ou à disperser. Cette invention a pour objet de réaliser un élément de canalisation d'alimentation d'un mélangeur statique de ce type, qui permettra de rehausser l'efficacité du procédé de mélange. L'objet de l'invention présente les caractéristiques suivantes : a) les éléments gaufrés A et B de l'élément de canalisation se composent chacun de pellicules minces ayant une épaisseur comprise entre 10 et 1000 micromètres, de préférence supérieure à 250 micromètres, et une largeur de l'ordre du millimètre, lesdits éléments gaufrés comportant une série de gorges adjacentes formées de façon à définir, une fois lesdits éléments superposés, des séries séparées de canaux servant à acheminer dans l'enceinte les fluides A' et B' à mélanger; b) les gorges ont une profondeur inférieure à 1000 micromètres, de préférence inférieure à 250 micromètres, une largeur comprise entre 1 micromètre et 1 millimètre, mais de préférence inférieure à 1000 micromètres, l'épaisseur de paroi des flancs et du fond des gorges étant inférieure à 1000 micromètres et de préférence à 250 micromètres; c) chaque série de gorges ménagées dans les pellicules superposées suit un arc menant alternativement de l'enceinte de mélange à une enceinte d'alimentation en fluides A' et B', toutes les gorges étant parallèles et débouchant dans l'enceinte de mélange.
Patent CA-2236293-A1 (CA)
Inventor: CHANTELOUP LUC
IPC: C07D305/14
Filed: 1996-10-25
Abstract: La présente invention concerne de nouveaux intermédiaires pour l'hémisynthèse de taxanes et leurs procédés de préparation. Il s'agit notamment de dérivés d'oxazolidines ou d'oxazolidinones, ainsi que de nou veaux dérivés de la baccatine III. Le procédé général de synthèse des taxanes selon l'invention permet d'obtenir un produit tel que le PA CLITAXELTM en seulement cinq étapes à partir de produits disponibles dans le commerce, contre généralement neuf étapes pour les procédés de l'état de la technique.
Patent CA-2236874-A1 (CA)
Inventor: ZHU YIXIN
IPC: H04Q11/04
Filed: 1997-01-09
Abstract: Cette architecture sans fil à fonctions d'accès redistribuées comporte plusieurs sites cellulaires connectés à un point de commutation principal. Ces sites cellulaires communiquent avec des utilisateurs cellulaires à l'intérieur de leurs secteurs respectifs de site cellulaire et comportent un segment de communication pour l'échange de signaux de communication avec les utilisateurs cellulaires. Le point de commutation principal, qui supervise la communication avec les utilisateurs cellulaires et le segment de communication, comporte un segment de traitement pour le traitement des signaux de communication en provenance des sites cellulaires. Ce segment de traitement comporte un segment destiné à moduler et à démoduler les signaux de communication et un segment destiné à traiter par train binaire les signaux de communication.
Patent CA-2238260-A1 (CA)
Inventor: ZEN LINO
IPC: H02G15/18
Filed: 1996-11-19
Abstract: Pièce de raccordement électrique comportant un organe de raccordement conducteur (8), une couche interne conductrice (9) entourant l'organe de raccordement, une couche isolante (10) entourant la gaine conductrice, et un manchon protecteur élastique (11) qui, au repos, comporte au moins une partie cylindrique (12) adjacente à une extrémité de la couche isolante et une partie conique (13) qui est adjacente à la partie cylindrique (12) et va en s'évasant à partir de la partie cylindrique (12), le manchon protecteur comportant en outre à une extrémité opposée à la couche isolante (10) un orifice (16) ayant un diamètre supérieur à la partie cylindrique (12).
Patent CA-2238680-A1 (CA)
Title: Multicode spread spectrum communications system
Inventor: FATTOUCHE MICHEL T
IPC: H04B1/707
Filed: 1998-05-27
Abstract: MultiCode Spread Spectrum (MCSS) is a modulation scheme that assigns a number N of Spread Spectrum (SS) codes to an individual user where the number of chips per SS code is M. When viewed as Direct Sequence Spread Spectrum, MCSS requires up to N correlators (or equivalently up to N Matched Filters) at the receiver with a complexity of the order of NM operations. In addition, a non ideal communication channel can cause InterCode Interference (ICI), i.e. interference between the N SS codes. In this patent, we introduce three new types of MCSS. MCSS Type I allows the information in a MCSS signal to be detected using a sequence of partial corrrelations with a combined complexity of the order of M operations. MCSS Type II allows the information in a MCSS signal to be detected in a sequence of low complexity parallel operations which reduce the ICI. MCSS Type III allows the information in a MCSS signal to be detected using a filter suitable for ASIC implementation or on Digital Signal Processor, which reduces the effect of multipath. In addition to low complexity detection and reduced ICI, MCSS has the added advantage that it is spectrally efficient.
Patent CA-2240484-A1 (CA)
Title: Method and apparatus for detecting and controlling mass flow
Inventor: BUMP SCOTT S
IPC: G01F25/00
Filed: 1998-06-30
Abstract: A process mass flow instrument for measuring the mass flow rate of a process fluid including a fluid inlet, a fluid outlet, a flow passage connecting the fluid inlet and the fluid outlet, a fluid flow sensor which provides a raw output signal corresponding to an unknown mass flow rate and a processor which contains an empirically derived conversion routine for converting the raw output signal to an adjusted signal indicating the mass flow rate of the process fluid. A method for determining an unknown mass flow using an empirically derived conversion function, the function being derived by correlating the output signals of a mass flow instrument sensing the flow of a calibration fluid with the output signals of the mass flow instrument sensing the flow of the process fluid.