baber/WOPTO huggingface dataset:
Patent CA-2043102-A1 (CA)
Title: Microwave device
Inventor: SHIGA NOBUO
IPC: H01P3/08
Filed: 1991-05-23
Abstract: Abstract of the Disclosure There is disclosed a microwave device comprising a substrate made of a dielectric material and a frequency conversion circuit  formed on  a front  surface of  the substrate and having a microstrip line for input and output  thereof  and  a  radio  frequency  amplifier  the substrate being partially thinned in a portion of a rear surface thereof a faced to the radio frequency amplifier, the width of said microstrip lines being selected so that the  change  in  the  characteristic  impedance  of  the microstrip lines which crosses the front surface of the substrate, a thickness of which is changed, is smaller than 10 %.
Patent CA-2043227-A1 (CA)
Title: Fuel supply system for internal combustion engines
Inventor: AFFELDT ROGER D
IPC: F02M69/46
Filed: 1991-05-24
Abstract: FUEL SUPPLY SYSTEM FOR INTERNAL COMBUSTION ENGINES      Abstract of the Disclosure A fuel supply system for internal combustion engines wherein fuel is supplied to a fuel rail and, in turn, to fuel injectors which are electronically controlled to provide fuel to the cylinders of the engine including a fuel pressure regulator for controlling the pressure of fuel support to the fuel rail.          A fuel bypass and damper device is provided upstream of the fuel pressure regulator and is operable to reduce the pressure of fluid in the fuel rail when the engine is shut off to provide a lower pressure in the fuel rail and bypass any excess fuel.          The device further functions to dampen the noise when the engine is running.  Such as system overcomes and fuel injection nozzles the problems of leakage of the injectors due to the high pressure retained in the system which in turn may produce long crank conditions, no start conditions, back fire conditions or high fuel emission conditions as well as engine noises.
Patent CA-2046028-A1 (CA)
Title: Tea process
Inventor: DYKS ANDREW J
IPC: A23F3/20
Filed: 1991-07-02
Abstract: Q 7138 (R) ABSTRACT            Tea extract is separated into a lighter coloured and a darker coloured phase by changing the natural self-separating capacity of the tea extract by concentrating the extract to 6-45 wt%, preferably 12-30 wt% solids, cooling the concentrate below 5°C and isolating the separated phases. The lighter coloured phase is used in preparing clear cold-water soluble tea, reduced caffeine tea, isotonic tea. The darker coloured phase may be used to prepare hot-water soluble instant tea, colouring agent, antioxidant or tea flavouring agent.
Patent CA-2050666-A1 (CA)
Inventor: DENT PAUL W
IPC: H04L27/22
Filed: 1991-09-04
Abstract: A zero-IF radio receiver eliminates DC offset without distortion or loss of the low-frequency and DC components of the received or desired signal by initially differentiating the received signal to filter out the DC offset. The signal is amplified to a suitable level and then integrated to recapture the original DC and low frequency signal components. The integration essentially restores the filtered components to the original value in the amplified signal using an arbitrary constant of integration of bounded magnitude to generate a restored signal. Using various techniques that exploit predetermined signal patterns or inherent signal properties of the desired signal, the DC offset can be reasonably estimated. The DC offset estimate is then subtracted out of the restored signal leaving the amplified, received signal substantially free from distortion.     An advantageous method for differentiating and digitizing the received signal uses the technique of companded delta modulation.
Patent CA-2052401-A1 (CA)
Title: Silicon diimide, a process for it's preparation and silicon nitride obtained therefrom
Inventor: WANNAGAT ULRICH
IPC: C01B21/068
Filed: 1991-09-27
Abstract: SILICON DIIMIDE, A PROCESS FOR ITS PREPARATION AND SILICON NITRIDE OBTAINED THEREFROM                  ABSTRACT OF THE DISCLOSURE         Silicon diimide having a carbon content of at most 0.5% by weight and a chlorine content of at most 20 ppm is prepared by reacting ammonia with organyl amino silane at 50 - 300°C at elevated pressure and is useful as an intermediate for high grade silicon nitride.            LeA 27 921
Patent CA-2054671-A1 (CA)
Title: Method and apparatus for use in microwave heating
Inventor: DE LA CRUZ MARIJO S
IPC: B65D81/34
Filed: 1991-10-31
Abstract: A device and method for enhancing microwave heating of food items. The device comprises an upstanding, microwave reflective wall. During cooking, the microwave reflective device is maintained about the periphery of the food item, while the space inward and above the wall is maintained free of obstructions to microwave radiation. A susceptor film may be employed beneath the food item during heating. The device improves both rate and uniformity of heating.
Patent CA-2057153-A1 (CA)
Inventor: BISSON M JEAN-YVES
IPC: E04F19/04
Filed: 1991-08-13
Abstract: "DECORA-CLIP" BUREAU DES BREVETS Consommation et Corporation Canada Ottawa Champ d'activité: Construction-Rénovatuion Objet: Plinthe décorative Pétitionnaire: Jean-Yves Bisson Titre: Décora-Clip Lors de la pause d'un recouvrement de plancher, une plinthe décorative conventionnelle est posée sur le plancher et adjacent au mur de division .Cet objet de finition est maintenu en place par une colle adhésive Industrielle et n'est constituée que d'une seule pièce. Dans la présente invention révolutionnaire, la nouvelle plinthe décorative est constituée de deux unités composantes.Tous deux s'imbriquent l'un dans l'autre par une simple pression de la main. La pose de la nouvelle plinthe décorative révolutionnaire ne nécessite aucune connaissance technique, aucun outil et aucun matériel quelconque. Signé à Sainte-Foy, Province de Québec, en ce permier jour d'août 1991.
Patent CA-2058236-A1 (CA)
Title: Moulding thermoplastic compositions endowed with improved mould release characteristics
Inventor: FASULO GIAN C
IPC: C08L55/02
Filed: 1991-12-20
Abstract: MOULDING THERMOPLASTIC COMPOSITIONS ENDOWED WITH IMPROVED MOULD RELEASE CHARACTERISTICS.                   ABSTRACT Moulding thermoplastic compositions, endowed with improved mould release characteristics, comprising: A)   an impact resistant vinyl aromatic copolymer consisting of an ethylenically unsaturated nitrile, a vinyl aromatic monomer and a rubber; B)   an engineering polymer; and C)   an effective amount of a release agent constituted by a syner= gistic mixture of an ester of a C16 - C18 acid with glycerol and an ester of a saturated aliphatic C10 - C20 acid with a C4 - C6 aliphatic alcohol. The physical-mechanical properties of the compositions at high moulding temperatures can be improved by addition of an effective amount of a bis(alkyl-phenyl)pentaerythritol diphosphite.      The compositions can, furthermore, contain in addition a grafted polymer consisting of an elastomeric core having a Tg lower than 10°C and containing vinyl monomer chains grafted thereon.
Patent CA-2059615-A1 (CA)
Title: Method of selecting and representing data
Inventor: NEUBAUER EDWARD J
IPC: G06F17/30
Filed: 1992-01-17
Abstract: ABSTRACT A method of selecting and representing time-varying data from a time-relational database management system by providing a unified view on a computer display screen.  The data from a master record for a particular entity is displayed with a default video or character attribute, and is considered to be the current record. Accessing a history record for that entity causes the data for fields that differ from the corresponding  fields of the current record to be overlaid on such current record fields but with a video or character attribute distinct from the default video or character attribute.  The overlaid current record becomes a new current record for further overlays.  Similarly, accessing a pending record causes the data forfields that differ from the corresponding fields of the current record to be overlaid on such current record fields but with a video or character attribute distinct from the default video or character attribute.  A plurality of history or a plurality of pending records may be composited so that all of the changed fields for a set ofrecords from the end of a defined time period can be overlaid on a current record at one time.  Accessing an error record caused the data for fields that differ from the corresponding fields of the current record (current as of the date of the error record) to be overlaid on such current record fields but with a video or character attribute distinct from the default video or character attributes.  Fields in the error record that are in error (whether changed or not from the current record data) are overlaid on the current record fields but with a video or character attribute distinct from both the default video or character attribute and the video or character attribute used to indicate changed fields in the error record.
Patent CA-2060982-A1 (CA)
Title: Improved closure assembly for container
Inventor: STRAUB ROY
IPC: B65D43/02
Filed: 1992-02-11
Abstract: A closure assembly for a container having a snap ring connected to the top of the container and a lid that may be easily attached to and later removed from the ring. The snap ring has a plurality of elongated engaging members with elongated grooves therein integrally formed at an annular inside surface thereof, and equally spaced circumferentially around the ring. The lid has an annular bead at an outer circumferential surface that engages the elongated grooves of the elongated engaging members when the lid is attached to the snap ring. Annular portions of the lid and ring also engage corresponding annular grooves of the lid and ring when the lid is attached to the top of the container, providing a secure seal. The lid may be easily removed from the snap ring by placing the end of a tool under the annular bead of the lid and prying the lid free of the container. Preferably the lid, snap ring and container are injection molded from plastic.
Patent CA-2062637-A1 (CA)
Title: Method and apparatus for recovering useful products from waste streams
Inventor: ROSTOKER WILLIAM
IPC: C22B7/02
Filed: 1992-03-11
Abstract: ABSTRACT           Waste materials containing metal oxides and/or metals and their salts are converted to useful products. The waste materials are combined in such proportions that when heated, they form a composite that becomes molten and pourable at temperatures below about 1600°C.  Provision is also made for converting some of the metal oxides in the molten material to free metal which is then separated from the molten material.  A modified cupola can be used to generate the temperature and reducing conditions suitable for carrying out the process.
Patent CA-2063223-A1 (CA)
Inventor: SHIBATA TOMOHISA
IPC: H04M19/00
Filed: 1992-03-17
Abstract: A power and signal transmission system performs a transmission of a power from a first communication device to a second communication device via a transmission path as well as a transmission of a signal between the first and second communication devices via the transmission path.  The first communication device includes a high voltage power source and a first pair of active induc-tances each having a low DC impedance and a high AC impedance, through which the power from the high voltage power source is supplied to the transmission path, and the second communication device includes a DC/DC con-verter and a second pair of active inductances each having a low DC impedance and a high AC impedance, through which the power transmitted via the transmission path is supplied.
Patent CA-2069859-A1 (CA)
Inventor: KEPPLINGER LEOPOLD WERNER DIPL
IPC: C21B13/02
Filed: 1992-05-28
Abstract: In a plant including a shaft, which, in its upper end region, includes a gas exhaust device and a charging arrangement for continuously charging bulk material, a temperature measuring device for measuring the temperature of the gas emerging from the bulk material is provided. In order to ensure the uniform treatment of the bulk material, i.e., a uniform gas passage through the same over the entire cross section of the shaft at little structural expenditures, several temperature measuring devices are provided in the upper end region of the shaft, distributed in a cross sectional plane, and the charging arranngement includes several tubular mouth pieces for forming at least one conical pile within the shaft, which are adjustable relative to the shaft cross section in the radial direction.
Patent CA-2072491-A1 (CA)
Title: Cleaning water supply device for a toilet
Inventor: HONG CHONG H
IPC: E03D9/08
Filed: 1992-06-26
Abstract: ABSTRACT OF THE DISCLOSURE     The combination of a toilet having a main body with a bowl portion therein and an upper flange structure around the upper part of the bowl portion, a flushing water supply pipe extending to the  toilet for supplying flushing water thereto, and a cleaning water supply device having an outwardly, and upwardly  inclined protrusion extending from the upper flange structure into the bowl portion and having an upwardly inclined hole therethrough, a nozzle pipe extending through the hole in the protrusion and having a nozzle head detachably mounted thereon, the main body having spaced opposed side walls in a rear portion thereof and aligned holes in respective side walls, a horizontal water supply pipe extending through the main body below the protrusion with the ends received in said aligned holes and to which the nozzle pipe is connected, and a connecting pipe having a valve means and a filter therein and having one end connected to the horizontal water supply pipe and the other end connected to the flushing water supply pipe.
Patent CA-2073926-A1 (CA)
Title: Multifunctional lubricant additives
Inventor: CAMENZIND HUGO
IPC: C10N10/02
Filed: 1992-07-15
Abstract: Multifunctional lubricant additives Abstract Novel compounds of the formula (I)                (I) in which X is oxygen or sulfur, R and R1 independently of one another are C3-C30alkyl, R2 is C4-C18alkyl and R3, R4, R5 and R6 independently of one another are H, C1-C20alkyl, C3-C20alkenyl, benzyl, phenyl or phenyl which is substituted by C1-C12alkyl, and in which R5 and R6 can also be a direct bond, or R3 and R4 together are trimethylene, tetramethylene,   or   and R5 and R6 are a direct bond or H, or in each case R3 and R6 together are a group =CH2 and R4 and R5 are H, or R4 and R5 together are a group =CH2 and R3 and R6 are H, or R3, R4, R5 and R6 together are  , and salts of these compounds, are described.   They can be employed as multipurpose additives, in particular as anticorrosion, high pressure and antiwear additives, and as antioxidants in the lubricants and hydraulic or metalworking fluids.
Patent CA-2076595-A1 (CA)
Title: Flow range extending valve
Inventor: KIM RAYNOMD K
IPC: G01F7/00
Filed: 1992-08-21
Abstract: ABSTRACT OF THE DISCLOSURE          A valve arrangement for use in measuring a wide range of gas flow rates,  comprises a valve housing including one inlet for a gas flow and two outlets, one for a low flow rate and the other for high flow rate. A plug  is  vertically moveable  in  the  housing  and includes a large diameter lower end engageable against a seat for closing a large port in the housing, and a small diameter upper end for engagement against an upper small diameter seat in the housing.  The large and small seats communicate with the high and  low flow rate outlets.  Ferromagnetic material forms at least part of each seat with the plug being magnetic for retaining either its upper or lower position depending on the inlet flow rate.  With a high inlet flow rate, the plug is lifted from its lower seat to close its low flow rate outlet and open its high flow rate inlet.  At low flow rate, gravity causes the plug to drop.  This permits the passage of the low flow rate gas through the low flow rate outlet.  A diaphragm connected between the plug and the housing separates the outlets from each other. small or low flow rate flowmeter is connected to the low flow rate outlet for measuring the low flowrate range and a large or high flow rate flowmeter is connected to the high flow rate outlet for measuring the high flow rate range.  Thus a broad range of gas flow rates can be measured.
Patent CA-2076786-A1 (CA)
Title: Prosthesis with biologically inert wear resistant surface
Inventor: PAPPAS MICHAEL J
IPC: A61F2/30
Filed: 1992-08-25
Abstract: A prosthesis is provided having at least a smooth non-articulating load bearing surface disposed adjacent a bone. The prosthesis includes a substrate formed from a metallic alloy. At least the regions of the substrate defining the load bearing surface are coated with a biologically inert abrasion resistant material harder than the substrate for preventing leaching of ions from the substrate into adjacent body tissue and for preventing wear. The coating may be titanium nitride or zirconium or other such material exhibiting biological inertness and acceptable hardness. The coating preferably defines a thickness of 8-10 microns.
Patent CA-2076837-A1 (CA)
Inventor: MORT JOSEPH
IPC: G03G5/047
Filed: 1992-08-25
Abstract: An imaging member, especially a layered photoconductive imaging member, comprised of a supporting substrate, a photogenerator layer, and a charge transport layer comprised of a fullerene or fullerenes. Preferably the fullerene is comprised of C60 carbon, optionally in the configuration of a soccer ball. Methods of imaging are also disclosed.
Patent CA-2079485-A1 (CA)
Inventor: BUSH RODNEY D
IPC: C07D333/22
Filed: 1991-04-09
Abstract: The present invention involves photoprotective compositions which are useful for topical application to prevent damage to skin caused by acute or chronic exposure to ultraviolet light comprising chelating agents having the formula    <IMAGE>  (I)  wherein -R1 and -R2 are independently selected from the group consisting of alkyl, aryl, and heteroaryl, or R1 and R2 may be covalently bonded together to form a cyclic alkyl; -M is selected from the group consisting of =0, =S, -SR4 and -OR4 (when -M is -OR4 or -SR4, there is a hydrogen bonded to the carbon to which -M is bonded); -R4 is selected from the group consisting of hydrogen, alkyl, aryl and heteroaryl; -R3 is selected from the group consisting of hydrogen, alkyl, aryl and heteroaryl; -R6 is selected from the group consisting of hydrogen alkyl, aryl and heteroaryl; and i is selected from the group consisting of one and zero. Methods for using such compositions to prevent damage to skin caused by acute or chronic exposure to ultraviolet light are al so involved.
Patent CA-2080947-A1 (CA)
Title: Electronic energy transfer circuit
Inventor: MORGAN CARLTON B
IPC: A61N1/39
Filed: 1992-10-20
Abstract: ELECTRONIC ENERGY TRANSFER CIRCUIT                       Abstract of the Disclosure An energy transfer circuit (40) for delivering a cardiac defibrillation pulse to a patient (50). An energy storage capacitor (16) is coupled to a pair of electrodes (52a, 52b) through an electronic switch (42). The electronic swith iscontrolled by a control circuit (20). A current shunt 56 is connected in parallel with a pair of defibrillation electrodes (52a, 52b) to divert a leakage current that flows through the electronic switch away from the patient when a defibrillation pulse is not being delivered. A current sensor (64) or a voltage sensor (72) provide a feedback signal to the control circuit to regulate the energy of the defibrillation pulse that flows through the patient.         PHYS3573AP.DOC
Patent CA-2081583-A1 (CA)
Title: Latent thiol mercaptan chain transfer agents and their use in the synthesis of polymers
Inventor: EMMONS WILLIAM D
IPC: C08F293/00
Filed: 1992-10-28
Abstract: ABSTRACT OF THE DISCLOSURE     This invention relates to latent thiol mercaptan chain transfer agents and their use in the synthesis of polymers. In addition, this invention relates to novel polymers and block copolymers formed using these latent thiol mercaptan chain transfer agents.
Patent CA-2084199-A1 (CA)
Title: Friable sealing compound for sealing cable joint boxes
Inventor: HOEFER RAINER
IPC: C08G18/36
Filed: 1991-05-21
Abstract: A b s t r a c t A  friable  sealing  compound of a polyol  component containing polyfunctional isocyanates, the polyol component being a mixture of ricinene oil and a predominantly hy-droxyl-terminated polybutadiene having an average molecular weight of 1,500 to 4,500 and/or a ring opening product of an epoxidized vegetable oil with unsaturated or saturated short-chain linear or branched C8-22 fatty acids.
Patent CA-2084715-A1 (CA)
Title: Built-in monitor apparatus
Inventor: UI HIROYUKI
IPC: G06F1/16
Filed: 1992-12-07
Abstract: A built-in monitor apparatus such as an electronic game machine and etc., which is adapted to allow a built-in monitor unit having a rectangular picture screen to rotate in a 90-degree arc. This built-in monitor apparatus comprises; a monitor unit comprising a cathode-ray tube; a base unit comprising a frame for rotatably supporting the monitor unit, and a stretchable damper biased to be moved forward, each end of the damper being pivotally connected to a portion between the frame and said casing; a guide roller mounted on the frame and adapted to slide along a guide rail provided within the casing; and a locking means for restraining the movement of the frame.
Patent CA-2087576-A1 (CA)
Title: Weeping hose
Inventor: RICHARDSON ROBERT L
IPC: D03D3/02
Filed: 1993-01-19
Abstract: A weeping hose having an interior coating comprising smaller and larger diameter warp yarn and filler yarn wherein the top portions of the large diameter warp yarn on the interior of the hose is not coated.
Patent CA-2087634-A1 (CA)
Title: Electrotherapy device and process
Inventor: KUHRY ANTHONY B
IPC: A61N1/40
Filed: 1993-01-20
Abstract: ELECTROTHERAPY DEVICE AND PROCESS                 Abstract of the Disclosure An electrotherapy device and process  for treatment of musculoskeletal disorders.   The device comprises an antenna formed of a series of spaced conductive strips, a high voltage, high frequency, low power source connected to the antenna, and dielectric shielding for preventing arcing from the device during treatment of a disorder.   In the treatment process, a high voltage, high frequency, pulsed source is provided to produce a broad band output corona discharge from the antenna having an electrostatic field extending in frequency from 0 Hz to over 1 GHz  and  constantly  changing  randomly  in  amplitude  and frequency.  The excited antenna is applied to a body with the corona   discharge enveloping   a   region   experiencing   a musculoskeletal disorder.
Patent CA-2087827-A1 (CA)
Inventor: BARRETT MICHAEL J
IPC: H01B11/22
Filed: 1993-01-21
Abstract: Disclosed is a cable in which one tube holding light waveguides is connected by a plastic web to another tube holding metallic current carrying conductors.  When buried in the earth, the cable may be located by means of a magnetic field produced by the current carrying conductors, but the cable retains the advantage of the tube carrying the light waveguides being dielectric.
Patent CA-2089302-A1 (CA)
Title: Double annular combustor
Inventor: SAVELLI JOSEPH F
IPC: F23R3/34
Filed: 1993-02-11
Abstract: A double annular combustor having concentrically disposed inner and outer annular combustors is provided with inner and outer dome plates. Each dome plate has an inner portion and an outer portion. A cowl structure having an inner portion, an outer portion and a middle portion is also provided. The cowl outer portion is connected to the outer dome plate outer portion, the cowl inner portion is connected to the inner dome plate inner portion, and the cowl middle portion is connected to the outer dome plate inner portion and the inner dome plate outer portion. at an outer end, an inner end. and a middle portion. Additionally. the inner and outer annular combustors may lie in distinct radial planes, whereby the dome plate of the downstream annular combustor includes a section extending upstream to the cowl middle portion.