baber/WOPTO huggingface dataset:
Patent CA-2202244-A1 (CA)
Inventor: BAILIS JASON M
IPC: H04L29/06
Filed: 1996-06-06
Abstract: A communication system among a plurality of communicating devices with an interface comprising a list of features for enhancing the ability of devices to communicate is copied from a device controlling communication to the controlled communication devices. The interface is a variable portion of a communication protocol that, together with a static portion of the protocol provided separately, defines the communication capability of the devices. Applications for telephone systems in a public or private telephone exchange and the controlled devices are computer operated telephones. The display screen of the computer at each telephone is used to select features of the interface.
Patent CA-2202796-A1 (CA)
Inventor: SCHMID KLAUS EDUARD
IPC: F01K11/04
Filed: 1997-04-16
Abstract: It is known that in heat cycle engines cranks are moved by pistons which are kept in motion by an expanding and contracting enclosed gas. This invention comprises anelongated duct which, with its advanced helical shape, rotates around a central hub axle, converting heat energy into rotary power without employing cranks or pistons.
Patent CA-2204720-A1 (CA)
Inventor: FREDERICK DONALD A
IPC: G01H9/00
Filed: 1997-05-07
Abstract: A fiber optic hydrophone is formed as a single interferometer having widely separated interferometer segments formed in each of a pair of optical fibers. The interferometer segments are designed to allow averaging of the effects of local noise sources over a broad area in order to increase the acoustic signal-to-noise ratio. The interferometer segments also allow deployment of the hydrophone around sharp bends. A first optical fiber is formed into a plurality of spatially separated outer coils. A second optical fiber is formed into a plurality of inner coils corresponding to the outer coils. The inner and outer coils are preferably arranged in concentric pairs to form a plurality of sensor segments. A plurality of spacers is arranged such that a spacer is between successive sensor segments. The spacers are formed to guide the outer and inner optical fibers between successive sensor segments such that changes in the physical parameter between the sensor segments produce no phase difference between optical signals guided by the outer and inner fibers. The outer and inner coils are preferably arranged for exposure to the parameter such that changes in the parameter at each sensor segment produce opposite phase changes between the optical signals in the outer coils and the corresponding outer coil.
Patent CA-2205589-A1 (CA)
Title: Casting material
Inventor: HOCK KLAUS
IPC: C09D7/62
Filed: 1995-11-23
Abstract: In a casting composition comprising a curable syrup which contains a liquid monomer and polymer components optionally dissolved therein, and an inorganic filler which includes a quartz sand product, in order to simplify the production of white molded articles, it is proposed that a product, the individual grain of which consists in the core essentially of quartz and at the surface essentially of .alpha.-cristobalite (low-temperature modification) be selected as quartz sand product.
Patent CA-2207864-A1 (CA)
Title: Improved photoresists and method of making printing plates
Inventor: ZHOU PEIGUANG
IPC: G03F7/20
Filed: 1997-06-17
Abstract: Printing plates having a photoresist layer thereon that can be exposed by a computer controller laser have improved sensitivity and do not require a photomask step. We have found photoresists that include a film forming polymer, an organo azide and a photosensitive dye that absorbs light at the frequency of the patterning laser and converts it to heat energy. The heat energy in turn elevates the temperature of the organo azide above its dissociation temperature, destroying the azide in areas exposed to the light source, and solubilizing those regions. A flood exposure with ultraviolet light hardens the unexposed resist, improving its resistance to etch solvents. Thus a flood exposure with ultraviolet light can be performed prior to or after pattern exposure, to harden the resist.
Patent CA-2215674-A1 (CA)
Title: Ophthalmic composition containing active vitamin d
Inventor: ITOH SEIJI
IPC: A61K31/593
Filed: 1996-03-18
Abstract: An ophthalmic composition comprises active vitamin D as an effective component and is used for preventing deterioration of the optical transparency, occurrence of high intraocular pressure diseases or defective sight, observed after an ophthalmic operation, due to hyperplasia of the anterior ocular cells in the tissues damaged by the ophthalmic operation, which are in course of a healing process, and/or excess production of cellular materials.     The ophthalmic composition can be dropped in the eye after operations such as those for cataract, for transplantation of intraocular lenses and for cornea to maintain the intraocular transparency of the anterior ocular region, to control the hyperplasia of the anterior ocular cells in the tissues damaged by the ophthalmic operation, which are in course of a healing process, and/or excess production of cellular materials and to thus prevent any reduction of visual acuity.
Patent CA-2215890-A1 (CA)
Title: A process for making a wood board and the wood board
Inventor: GRENIER RAOUL
IPC: B07C5/14
Filed: 1997-10-02
Abstract: The process for making a wood board comprises the steps of:  a)  providing  elongated  pieces  of  wood  each  from  a coniferous wood and each having a rectangular cross section; b) detecting an average fiber density of each of the pieces of wood; c) selecting among the pieces of wood those having an average fiber density at least equal to a predetermined fiber density; d) planing off edges of the pieces of wood selected in step c); and e) bonding side by side the pieces of wood planed off in step d) by means of their edges to form the wood board. The board produced thereby shows excellent mechanical characteristics. An advantage of the present invention is to provide a process for making high strength lumber products from coniferous  trees  which  are  traditionally  considered  as nonstructural wood.
Patent CA-2217738-A1 (CA)
Title: Microminiature illuminator for administering photodynamic therapy
Inventor: SWANSON BRIAN D
IPC: A61N1/372
Filed: 1996-03-18
Abstract: A plurality of microminiature light sources (10, 10') are injected at a treatment site to effect photodynamic therapy (PDT). Each of the microminiature light source beads includes an LED chip (12), a rectifier chip (14), and a plurality of electromagnetic receivers (18, 18') encapsulated within a biocompatible, light transmitting material such as silicone, forming a spherical bead that is only a few millimeters in diameter. The light source beads are sufficiently small so that they can be injected into a treatment site such as a tumor (46) from a syringe (58) through a needle (60). A  photoreactive agent, which can serve as a carrier fluid for the microminiature light source beads, sensitizes the tissue at the treatment site so that light emitted by the LED chip when energized with an external electromagnetic transmitter (34) kills the tissue or other pathogens at the treatment site that have absorbed the photoreactive agent. Alternatively, a catheter (66) can be used for emplacing the microminiature light source beads at the treatment site.
Patent CA-2219505-A1 (CA)
Title: Method for the calcination of calcium carbonate bearing materials
Inventor: LABELLE GERALD J
IPC: C04B2/12
Filed: 1997-02-27
Abstract: The invention relates to a method for heat treatment of fine calcium carbonate bearing material comprising preheating fine material containing a coarse and a fine fraction. The preheated material is delivered into a fluidized bed (20) calcining means wherein the coarse fraction is calcined and the fine fraction is delivered by process air to an adjacent vertically arranged gas flash calciner furnace (60) in which it is calcined.
Patent CA-2224747-A1 (CA)
Title: Combination valve for screw compressors
Inventor: SCHUTTE PETER TODD
IPC: F04C29/00
Filed: 1997-12-12
Abstract: Normally closed valve structure is located in a fluid path between the suction and discharge sides of a compressor. The valve structure opens upon a small pressuredifferential when the higher pressure is in the normal suction side which is indicative of reverse operation. Additionally, relief valve structure opens when the discharge pressure becomes excessive.
Patent CA-2231603-A1 (CA)
Title: Chicken interleukin-15 and uses thereof
Inventor: SUNDICK ROY S
IPC: A61K31/00
Filed: 1996-10-10
Abstract: The present invention provides isolated and purified DNA encoding avian interleukin-15 (IL-15), as well as cloning and expression vectors comprising IL-15 DNA and cells transformed with IL-15-encoding vectors. The invention also provides isolated and purified avian IL-15 polypeptide which has the ability to stimulate mitogen-activated avian T  cells. The invention also provides a method for enhancing an immune response in fowl to an immunogen by administering the immunogen before, after, or simultaneously with avian IL-15. Finally, the invention provides a vaccine for inducing immune responses in fowl to an immunogen comprising the immunogen and an effective amount of avian IL-15.
Patent CA-2233919-A1 (CA)
Title: Forme galenique unitaire pour hormonotherapie locale de la secheresse vaginale
Inventor: MEIGNANT CATHERINE
IPC: A61K9/00
Filed: 1996-10-04
Abstract: Cette forme galénique est destinée à un traitement local, essentiellement non systémique, de la sécheresse vaginale, notamment chez la femme ménopausée. Elle comprend un estrogène naturel libre, notamment micronisé, ou bien vectorisé, choisi parmi le 17.beta.-estradiol et ses sels en solution ou en suspension dans un agent lipophile, avec une teneur en estrogène correspondant à une dose unitaire équivalente d'au plus 15 .mu.g, de préférence moins de 10 .mu.g, de 17.beta.-estradiol, un agent hydrophile gélifiant bioadhésif, un agent gélifiant de l'agent lipophile et un agent hydrodispersible. Sous forme de capsule molle, elle comprend, d'une part, une enveloppe externe solide dure ou molle contenant de la gélatine et de la glycérine et, d'autre part, une phase interne liquide ou semi-liquide non aqueuse contenant l'agent lipophile avec l'estrogène en solution ou en suspension, l'agent de bioadhésion et l'agent hydrophile gélifiant de l'agent lipophile. Sous forme d'ovule à libération prolongée, elle comprend une phase homogène solide dure ou semimolle non aqueuse contenant l'agent lipophile avec l'estrogène en solution ou en suspension, l'agent hydrophile gélifiant bioadhésif, l'agent gélifiant de l'agent lipophile et l'agent hydrodispersible.
Patent CA-2234450-A1 (CA)
Inventor: CAPUTO GIUSEPPE
IPC: C12Q1/68
Filed: 1996-10-08
Abstract: The present invention is directed to fluorescent dyes and its valence tautomers of formula (I), wherein Q represents a conjugated moiety that increases the fluorescent quantum yield of the compound; R1 is a functionalized group of the formula -(CH2)jY, wherein Y is selected from the group consisting of SO3H, COOH, NH2, CHO, NCS, epoxy, phthalimido, and COOZ, wherein Z represents a leaving group; R2 is a functionalized group of the formula -(CH2)kY', wherein Y' is selected from the group consisting of SO3H, COOH, NH2, CHO, NCS, epoxy, phthalimido, and COOZ, wherein Z represents a leaving group;  M+ is a counterion selected from the group consisting of ammonium, alkali metal cations, and alkaline earth metal cations; n = 1 to 4; m = 1 to 4; j = 2 to 10; and k = 2 to 10.
Patent CA-2234952-A1 (CA)
Title: Hydrocyclone gas separator
Inventor: NASSIF NAJI
IPC: B01D19/00
Filed: 1996-10-18
Abstract: A hydrocyclone (2) for separating a combined phase input stream has two nesting truncated downwardly tapering conical members (10, 12) having an annular space (14) therebetween. A tangential inlet (8) leads to the annular space (14) between the cones (10, 12). Alternate embodiments applicable to a hydrocyclone device composed of nesting cylindrical or conical shells forming an annular cyclonic space have passages (39, 41) located on either of the shells (10, 12) to effect an intermediate draw off of a fraction of the flow stream. In addition, a coiled, hollow tube (16) is advantageously situated within the annular space (14) to optimize the flow pattern. Ports (50) may be provided in the hollow tube (16) for removing a gas fraction in counterflow orientation.
Patent CA-2235083-A1 (CA)
Title: Transparent transport
Inventor: GAGNON RONALD J
IPC: H04J14/02
Filed: 1998-04-17
Abstract: A configuration for a transport node of a telecommunication system comprises a pair of transparent mux/ demuxs provided at two sites and connected over a high rate span. The T-Muxs provide continuity of all tribs and maintain a lower bit rate linear or ring system through the higher bit rate span. The lower bit rate linear or ring system operates as if it were directly connected without the higher bit rate midsection. For the forward direction of the traffic, the T-Mux comprises a multi-channel receiver for receiving a thetrib signals and providing for each trib signal a trib data signal and a trib OAM&P signal. The data signals are multiplexed into a supercarrier data signal and the OAM&P signals are processed to generate a supercarrier OAM&P signal. A supercarrier transmitter maps the supercarrier data signal and the supercarrier OAM&P signal into a supercarrier signal and transmits same over the high rate span. Reverse operations are effected for the reverse direction of traffic. With this invention, an entire ring system does not have to be upgraded to a higher line rate due to fiber exhaust on a single span. The invention is particularly applicable to SONET OC48/OC-12/OC-3 linear and ring networks and the high rate span could be an OC-192 line.
Patent CA-2236025-A1 (CA)
Title: Combining structure of a primary spectacle frame with an auxiliary spectacle frame
Inventor: KU KUO-SHENG
IPC: G02C9/00
Filed: 1998-04-27
Abstract: A combining structure of a primary spectacle frame with an auxiliary spectacle frame includes a connecting portion respectively formed at two sides of the primary spectacle frame.  Each connecting portion is pivotally connected with a temple and provided with a first magnetic member and a recess formed on the first magnetic member for a second magnetic member disposed protruding up a vertical portion of an extension formed respectively at two sides of an auxiliary spectacle frame to fit there-in.  Further, between each extension and the auxiliary spectacle frame itself is formed a gap, in which each connecting portion of the primary spectacle frame fits.  Each extension strides across on the connect portion like a hook.
Patent CA-2237091-A1 (CA)
Inventor: VANZIELEGHEM ETIENNE
IPC: H04L27/26
Filed: 1998-05-29
Abstract: A telecommunication transmitter (TU) for a multi-carrier transmission system of the Digital Subscriber Line [DSL] type and which includes a coding circuit (MMC) able to generate "symbols" derived from carriers (Cl-Cn) modulated by incoming data, and a line driver circuit (LDC) to amplify these symbols. When idle data are received, the power dissipated in the transmitter isreduced because the symbols are then merely derived from a few or even a single carrier (the "pilot tone") instead as from all the available carriers. The power dissipated is even more reduced because the line driver circuit comprises the parallel connection of a high voltage but low efficiency (LL) and a lower voltage but higher performant (LH) line amplifier. The higher performant, and thus less power consuming, amplifier (LH) is used when idle data are received atthe input (IN). In a variant, there is only one line amplifier of which the quiescent current is controlled in function of the data traffic. In another variant, the number of carriers used by the coding circuit (MMC) is a function of the mean traffic of effective data received.
Patent CA-2240352-A1 (CA)
Inventor: WILSON STUART MARK
IPC: C12Q1/70
Filed: 1996-12-16
Abstract: The present invention relates to a method for enhancing the time of response of an assay for a first bacterium, characterised in that: a) the said first bacterium is exposed to infection by phage particles to which the said first bacterium is permissive; b) the infected bacterium is treated to in-activate exogenous phage particles; c) the treated bacterium is cultivated in the presence of a second bacterium which is permissive to said phage or its replicand and which has a doubling rate greater than the effective doubling rate of the first bacterium; and d) assessing the extent of plaque formation and/or of second bacterium growth in the cultivated second bacterium cells. The method of the invention can be used to assess the presence of first bacterium in a sample, notably where the first bacterium is a slow growing bacterium, especially Mycobacterium tuberculosis, where the method of the invention enables an operator to detect the presence of low amounts of the bacterium in a sample within days instead of the weeks required with conventional bacterial cultivation techniques. The invention can also be used to assess the effect of a drug or other treatment on a bacterium or of a virus. The invention also provides a diagnostic kit for use in the method of the invention.
Patent CA-2241042-A1 (CA)
Inventor: DEARWESTER DONALD DAVID
IPC: A47K10/32
Filed: 1996-12-20
Abstract: An apparatus (10) for dispensing toilet tissue and at least one other product is disclosed. A top wall (80) and two opposing side walls (30, 40) are connected together to form a housing (110). The apparatus (10) is readily attachable to ordinary toilet tissue roll holders (150) using a spindle (51) of the roll holder and without the need for adhesives or the like. The apparatus (10) receives at least one roll of toilet tissue by a spindle (70) or by other known hardware. The top wall (80) is adapted for holding additional products.
Patent CA-2243468-A1 (CA)
Title: Connector for consumer networks
Inventor: WOLF JOHANN
IPC: H02H11/00
Filed: 1997-01-08
Abstract: Described is a connector for consumer networks (1, 2) which creates a connection with no short-circuit within permitted operating limits by means of at least one switch (5). In addition to current (6) and voltage (7) sensors with their associated processing unit (8), a connection arm (9) in parallel with the load and a bridge arm (10) connected up as a voltage divider provide additional protection against switching on in the event of a short-circuit.  The switch (5) is bridged by the bridge arm (10) which also includes a device (16) with a keying function. In the event of a short-circuit, the voltage at the actuator (11) is not sufficient to connect in the switch (5).
Patent CA-2244850-A1 (CA)
Title: A g protein-coupled receptor with an enlarged extracellular domain
Inventor: YE RICHARD D
IPC: C07K14/72
Filed: 1997-01-30
Abstract: The invention features a G protein-coupled receptor that has an enlarged extracellular loop between the fourth and fifth transmembrane domains. A nucleic acid encoding the receptor was isolated from a human granulocytic cell library and antibodies generated against the polypeptide revealed expression in a variety of tissues including heart, placenta, and lung. This antibody, or others that specifically bind the G protein-coupled receptor of the invention, can be used in the diagnosis of diseases or conditions that are associated with upregulation of the receptor, as occurs, for example, when hematopoietic cells differentiate. These diseases include inflammatory and neurological diseases, particularly Alzheimer's Disease. The nucleic acids, polypeptides, and antibodies described herein can also be used as therapeutic agents to treat these diseases by inhibiting the expression or activity of the receptor. They can also be used in the treatment of obesity.
Patent CA-2245571-A1 (CA)
Title: Procede de traitement de flux de donnees dans un reseau neuronal, et reseau neuronal
Inventor: COTTERILL RODNEY MICHAEL JOHN
IPC: G06F15/80
Filed: 1997-02-03
Abstract: Ce réseau neuronal possède un capteur extérieur (2) destiné à recevoir une représentation paramétrique de l'environnement. Cette représentation est pondérée et envoyée à l'entrée d'un noeud maître (1) dont la sortie transfère ladite représentation, sous une forme de nouveau pondérée, à l'entrée d'un effecteur extérieur (5). La sortie de cet effecteur est renvoyée à l'entrée du capteur, après influence sur l'environnement. En outre, cette représentation est renvoyée directement à partir du capteur du noeud maître, une somme des représentations paramétriques renvoyées s'effectuant ensuite. L'apprentissage par le réseau neuronal est rapide et très complexe, le réseau pouvant, après cet apprentissage, exécuter des tâches sans avoir à utiliser des signaux de retour influencés par l'environnement. Ainsi, l'invention permet d'obtenir un réseau neuronal présentant des analogies avec la conscience humaine.
Patent CA-2246134-A1 (CA)
Title: Enhanced network protocol
Inventor: CARRIER MARC
IPC: H04L29/06
Filed: 1998-08-31
Abstract: A low latency network protocol for use with packet switched data networks is disclosed. In accordance with the protocol, a first computing device (l0a) forms protocol data units ("PDU"s) (50) containing data to be transmitted to a second computing device computing device (10b). Multiple PDUs grouped in sets, each containing identical data are transmitted to the second computing device at short intervals. At least one PDU (50) in each set is transmitted in a packet that conforms to a reliable protocol that requires acknowledgment of receipt of the packet. The remaining PDUs (50) are preferably transmitted in packets that conform to a protocol that does not require acknowledgement of the packets.     Transmission of multiple PDUs (50) containing identical data increases the likelihood that the data will be received with minimal delay. Transmitting at least one PDU (50) using a reliable protocol ensures data will be received. At the second computing device, PDUs (50) containing duplicate data are discarded.
Patent CA-2246699-A1 (CA)
Inventor: ADLHOCH WOLFGANG
IPC: E04F21/165
Filed: 1998-09-23
Abstract: In the application of a material such as semi-solid gypsum jointfill compound, a major source of waste and time consumption is the transfer of this material from the storage container to the manual application tools. This is presently accomplished by either scooping or pouring. Both these methods require the container to be opened for access, and thereby exposing the material to air, which in time will render the material inconsistent in viscodity, cause contamination by absorbing foreign materials, necessitates considerable time loss, and creates waste. This new portable DISPENSING APPARATUS will improve and/or eliminate these conditions.
Patent CA-2250198-A1 (CA)
Title: Arrhythmia and fibrillation prevention pacemaker using consistent pacing
Inventor: HILL MICHAEL R S
IPC: A61N1/362
Filed: 1997-05-05
Abstract: New pacing algorithm defines faster than indicated pacing rate during detection of PAC's/PVC's and reduces rate after a while to a safety rate unless natural depolarizations are detected.
Patent CA-2253917-A1 (CA)
Title: Method and device for braking an all-mains motor
Inventor: ERICSSON HANS BIRGER
IPC: H02P3/10
Filed: 1997-05-09
Abstract: A method and a device for electrical braking of an all-mains motor by which disconnection of supplied feed current to the motor causes an electric switching operation, whereby electric current arranged to cause a reversed rotary direction for the rotor (1) of the motor is supplied. According to the invention, supplied braking power (P) is controlled and reduced on basis of the successive reduction of rotary speed for the motor until the rotor (1) of the motor has substantially completely ceased to rotate, preferably substantially corresponding to an inverted "soft start" for the motor, whereafter supplied braking current feed is interrupted. It is advantageously monitored whether or not normal start of the motor has been performed, electric switching to braking only being made possible provided that such a start sequence has been indicated.