baber/WOPTO huggingface dataset:
Patent CA-2214287-A1 (CA)
Inventor: YEAP TET HIN
IPC: H04B1/66
Filed: 1997-08-29
Abstract: Improved transmission or storage of signals, such as high speed transmissions insubscriber loops of telecommunication systems, is facilitated by apparatus which includes an encoder for encoding the signal before application to the transmission/storage medium and a decoder which decodes the signal received from the medium. The encoder comprises an analysis filter which analyzes the input signal (Si) into a plurality of sub-band signals (y), each sub-band centered at a respective one of a corresponding plurality of frequencies (f); and a device for combining at least one pair of said sub-band signals to provide an encoded signal comprising two adjacent spectral lobes each comprising information from both sub-bands. The decoder comprises a filter for extracting the pair of sub-band signals from a received encoded signal; and a synthesis filter, complementary and substantially inverse to the analysis filter, for processing the extracted pair of sub-band signals to produce a decoded signal corresponding to the input signal. The sub-band signals may be used to modulate in-phase and quadrature components of a common carrier signal to produce the combined signal. One of thespectral components may be removed before transmission/storage of the encoded signal.
Patent CA-2214363-A1 (CA)
Title: Method of producing synthetic silicates and use thereof in glass production
Inventor: HOCKMAN JOHN ALBERT
IPC: C01B33/20
Filed: 1997-09-02
Abstract: A method is disclosed of producing a calcium silicate precursor material.  The method is advantageous in providing material useful in glass making. Such method involves the reaction of calcium oxides and magnesium oxides, water and sodium silicates. The glass formation is performed at a lower temperature than usual and performed with a lower amount of volatile gas release. Less cristobalite formation in the glass occurs.
Patent CA-2214567-A1 (CA)
Title: Methods and apparatus to measure particulate matter in gas
Inventor: KOUTRAKIS PETROS
IPC: G01N15/06
Filed: 1996-02-29
Abstract: Apparatus for measuring the amount of particulate matter in a gas having a gas supply, a first particulate matter collector downstream of the gas supply and in gaseous communication with the gas supply, and a second particulate matter collector downstream of the gas supply and in gaseous communication with the gas supply. Gas from the gas supply to the second particulate matter collector is passed through a particle remover to remove particulate matter prior to contact of gas from the gas supply with the second particulate matter collector. A pressure sensor is provided to measure differential pressure between the first particulate matter collector and the second particulate matter collector, and at least one pump to cause gas to pass from the gas supply to the first particulate matter collector and the second particulate matter collector.
Patent CA-2214611-A1 (CA)
Title: Method for processing zinc silicate-containing zinc crude material
Inventor: SHIMOKAWA KIMIHIRO
IPC: C22B3/08
Filed: 1997-09-03
Abstract: A method for processing a zinc silicate-containing zinc crude material, characterized by maintaining a sulfuric acid-acidified solution in the following conditions in extracting zinc from a zinc silicate-containing zinc crude material in a sulfuric acid-acidified leaching tank:      liquid temperature (t) :  t >= 75°C pH                     :  1.5 <= pH <= 3.0 Si0 2 concentration : Si0 2 <= 5.0 g/l wherein said Si0 2 concentration is the concentration of ionic silica [Si(OH)4] and of colloidal silica [(Si0 2)n] in said solution.
Patent CA-2215210-A1 (CA)
Title: Polyphenol fractions of tea, the use thereof and formulations containing them
Inventor: MORAZZONI PAOLO
IPC: A23L1/30
Filed: 1996-03-07
Abstract: The present invention relates to the preparation of novel polyphenol fractions of Camellia sinensis (tea), the use thereof and formulations containing them.  The invention relates specifically to the preparation of extracts deprived of caffeine but containing the polyphenols deriving from epigallocatechin in a natural ratio. These extracts can be used alone or combined with lipophilic antioxidants, sulfurated amino acids and oligoelements of biochemical and nutritional importance. The use of these novel extracts, alone or in combination with other active principles, is of interest to the food, pharmaceutical and cosmetic fields.
Patent CA-2215273-A1 (CA)
Title: Article carrier with bottom panel false score
Inventor: HARRIS RANDALL LEE
IPC: B65D71/00
Filed: 1996-11-22
Abstract: An article carrier (10) which tapers in toward the top panel (14) on all four sides. The carrier in collapsed form is folded about an intermediate fold line (30) in the bottom panel located so that the collapsed carrier is in flat folded condition.      The provision of the intermediate fold line (30) compensates for the greater width of the bottom panel (24) compared to the width of the top panel (14). The sides of the carrier (10) are squared by contact with the lower portions of bottles being through an open end of the carrier.
Patent CA-2215689-A1 (CA)
Inventor: KARPUK GEORGE
IPC: A63B53/04
Filed: 1997-09-16
Abstract: A golf putter for striking a golf ball on a putting surface has an elongate shaft with a top end for gripping by a user, and a putter head at the opposed bottom end with a front face for striking the golf ball. The front face has a convex horizontal curvature and a flat vertical profile so that the golf ball is urged to travel in a desired direction and so that a forward roll is imparted thereon with minimal skidding of the golf ball on the putting surface. The putter head's top surface has a marker for aligning the golf ball with the front face. The marker is located at the apex of the convex horizontal curvature and aligned with the longitudinal axis of the shaft so that the golf ball travels in the desired direction even if the putter head is twisted slightly upon striking the golf ball.
Patent CA-2219003-A1 (CA)
Title: Method and system for testing performance of refrigeration units
Inventor: KANAI HIROSHI
IPC: G01M99/00
Filed: 1997-10-17
Abstract: Assembly lines incorporates an test line capable of operating electric appliance in a simulation mode and measuring at least one physical quantity observable for the appliance operating in the simulation mode. The inventive method includes: a step of automatically measuring the physical quantity during the simulation mode operation after a predetermined time elapsed subsequent to the start up of the operation; and a step of determining whether a currently measured value of the physical quantity falls within a first reference range having preset upper and lower limits until the number of measurement reaches a first predetermined number, and, after the number of measurement has reached said first predetermined number, whether the currently measured value falls within a second reference range which is calculated from the predetermined number of consecutive measurements that precede the current measurement. Since the test line is incorporated within assembly lines, the production efficiency of the lines is improved.
Patent CA-2220445-A1 (CA)
Title: Filtration adjuvants, filtration supports, filtration process using them and process for regenerating said adjuvants
Inventor: RAHIER GEORGES
IPC: B01J20/34
Filed: 1996-05-10
Abstract: The invention relates to new regeneratable filtration adjuvants which are usable for the filtration of liquids, particularly beer at the end of the secondary fermentation storage, characterized in that they comprise synthetic or natural incompressible polymer grains or natural incompressible grains having a sphericity coefficient varying between 0.6 and 0.9 approximately.
Patent CA-2220700-A1 (CA)
Title: Method for manufacture of products containing disalts of formic acid
Inventor: HJORNEVIK LEIF
IPC: C07C51/41
Filed: 1996-05-10
Abstract: The present invention relates to a method for manufacture of products containing disalts of formic acid. Potassium hydroxide, carbonate, bicarbonate or formate, sodium hydroxide, carbonate, bicarbonate or formate, cesium hydroxide, carbonate, bicarbonate or formate or ammonium formate or ammonia is mixed with formic acid at 40-100 °C, the mixture is cooled and centrifuged. The filtrate containing acid salt is collected. The filter cake is transported to a drier/mixer where other disalts, calcium formate and/or a desiccant can be added.
Patent CA-2222062-A1 (CA)
Title: Process for the preparation of tertiary aminocarbonates and aminoethers
Inventor: BASTRON VICTOR
IPC: C07C213/08
Filed: 1996-06-07
Abstract: The invention relates to processes for producing di-(tertiary aminoalkyl) carbonate including the step of reacting a tertiary alkanolamine with methyl alkyl carbonate in the presence of a transesterification catalyst to form tertiary aminoalkyl alkyl carbonate, wherein some of the tertiary alkanolamine reacts with the tertiary aminoalkyl alkyl carbonate to form di-(tertiary aminoalkyl) carbonate. The invention also relates to processes for producing di-(tertiary aminoalkyl) carbonate including the steps of (i) reacting dimethyl carbonate with an alcohol in the presence of a transesterification catalyst to form a methyl alkyl carbonate, and (ii) reacting a tertiary alkanolamine with the methyl alkyl carbonate formed in step (i) in the presence of a transesterification catalyst to form tertiary aminoalkylalkyl carbonate, wherein some of the tertiary alkanolamine reacts with the tertiary aminoalkyl alkyl carbonate to form di-(tertiary aminoalkyl) carbonate.
Patent CA-2223641-A1 (CA)
Title: Preparation of (cyclo)aliphatic polyisocyanates containing biuret groups
Inventor: BITTINS KLAUS
IPC: B01J10/00
Filed: 1996-07-09
Abstract: A process and device are disclosed for preparing (cyclo)aliphatic biuret groups-containing polyisocyanates from (cyclo)aliphatic diisocyanates and steam or a dehydrating substance as reactives that are mixed with each other in a stirring reactor. The reactives flow in opposite current through a cascade-shaped stirring reactor with at least two stages. The distribution of the gaseous reactives in the liquid reactives is intensified by turbulence-generating means built into the stirring reactor. Mutually spaced disks provided with central openings and/or turbulence-generating strips that extend in the longitudinal direction of the stirring reactor are used as turbulence-generating means.
Patent CA-2224010-A1 (CA)
Inventor: STARKE WILFRIED
IPC: F16J15/08
Filed: 1996-06-06
Abstract: Device for sealing between two assembly parts (1, 2) movable relative to one another, especially between two damper blades or a damper blade and a stop of a flue gas armature, containing an elastic sealing element formed by a spring-steel strip (5), which contains two flat clamping edges (6, 7) arranged next to one another in a parallel fashion and pointing to the same side and securable by means of a clamping device (9) on one side to one of the assembly parts (1 or 2), as well as sealing zone (10) curved in an arc-shaped manner, whereby the sealing element (5) rests, with a resting surface located outside of the clamping edges (6, 7), flatly on the flat supporting surface (15) of a supporting element (8), and the supporting element (8) is also securable by means of the clamping device (9) to one of the assembly parts (1 or 2), and whereby the other assembly part (2 or 1) comes into contact with the sealing element (5) in the top area of the sealing zone (10) curved in an arc-shaped manner and the relative movement between the two assembly parts (1, 2) occurs roughly tangentially relative to this top area. According to the invention, the supporting element (8) is located inside of the space enclosed by the curved sealing element (5).
Patent CA-2224941-A1 (CA)
Title: Electrochemical cell
Inventor: BAKHIR VITOLD MIKHAILOVICH
IPC: C02F1/46
Filed: 1996-04-18
Abstract: An electrochemical cell for the treatment of water and/or water solutions comprises an internal electrode having a middle section and a pin-end at each end thereof, the diameter of each pin-end being not more than 0.75 of the diameter of the middle section; an external electrode mounted around the internal electrode; and a coaxial ceramic diaphragm mounted in a separate inter-electrode space in an electrode chamber of the cell. The external electrode is mounted in lower and upper dielectric bushings. Both the internal electrode and the external electrode are connected with positive and negative poles of a power supply. The cell further includes an upper dielectric collector head and a lower dielectric collector head which each have an axial channel; each collector head being installed in the bushing slots and adapted for turning therein. The diaphragm being fastened by elastic gaskets mounted in the slots of the bushings.  The diameter of the middle section of the internal electrode being defined by the formula: 2M<D<4M  where:   D = diameter of the middle section of the internal electrode in mm, and M = distance between electrodes in mm. The length of the middle section of the internal electrode is either shorter than the length of the external electrode by a value of 2M or longer than the length of external electrode by a value of not less than 2M.
Patent CA-2228784-A1 (CA)
Inventor: BARA ISABELLE
IPC: A61K8/00
Filed: 1998-03-03
Abstract: Composition huileuse homogène à un usage cosmétique. Cette composition contient en mélange: (a) au moins une gomme de silicone, (b) au moins une huile végétale ou un triglycéride de synthèse, et (c) et au moins une silicone volatile de type alkylpolyméthylpolysiloxane correspondant à la formule suivante : (voir figure I) dans laquelle : x = 0 à 10 y = 0 à 10 R représente un radical alkyle linéaire ou ramifié ayant de 5 à 10 atomes de carbone, R1 représente -CH3 ou R, sous réserve que lorsque x = 0, R1 représente R. Utilisation de la composition huileuse homogène pour la réalisation de compositions cosmétiques sous forme anhydre ou sous forme dispersée en milieux aqueux.
Patent CA-2229153-A1 (CA)
Inventor: CULHANE JEFFREY J
IPC: A63B57/00
Filed: 1998-02-06
Abstract: The present invention provides an automated golf ball teeing device for practising golf. The automated golf ball teeing device of the present invention includes a deck assembly, a teeing mechanism and a ball reservoir. The deck assembly includes a deck and a club surface. The teeing mechanism and ball reservoir are mounted below a deck.  The teeing mechanism includes a retractable flexible tee which in the play position, positions a golf ball at or above a club surface.
Patent CA-2232762-A1 (CA)
Title: Method for limiting brake cylinder pressure on locomotives equipped with distributed power and electronic brake systems
Inventor: JENETS ROBERT J
IPC: B60T13/66
Filed: 1998-03-20
Abstract: Method  and  apparatus  for  limiting  brake  cylinder pressure  in  emergency  braking  of  a  locomotive  consist connected  to  a  train  of  railway  cars.    The  apparatus includes  a  manifold  device  connected  to  a  reservoir  of pressurized  fluid  for  operating  pneumatic  brakes  of  the locomotive consist.   A first magnet valve is connected to the manifold device for supplying fluid pressure from such device to a brake actuating pipe when an operating coil of the first magnet valve is energized. A second magnet valve having an operating coil is connected to the manifold device for  supplying  fluid  pressure  from  the  reservoir  to  an adjustable  pressure  regulator  connecting  an  independent application  and  release  pipe  to  the manifold device.   A relay is connected to receive an emergency brake signal and conduct emergency power to the operating coils of the first and second valves whereby fluid pressure is supplied to the brake  actuating  pipe  and  to  the  adjustable  pressure regulator from the manifold device. The adjustable pressure regulator provides the independent and release pipe with a fluid  pressure  preset  to  a  predetermined  value  by  the adjustable pressure regulator.
Patent CA-2233036-A1 (CA)
Title: A1-alloy heat exchanger
Inventor: ITO AKIHIRO
IPC: F28F21/08
Filed: 1998-03-24
Abstract: In an Al-alloy heat exchanger, the core material of brazing sheets constituting tube elements is an Al alloy consisting essentially of 1 to 1.5% by weight of Mn, 0.1 to 0.5% by weight of Cu, 0.05 to 0.2% by weight of Zr, and the balance being Al and impurities: the brazing sheets are formed by cladding both sides or one side of the core material with a brazing filler metal comprising an Al alloy containing at least Si; and an Al-alloy consisting essentially of 0.05 to 0.2% by weight of Zr and the balance being Al and impurities is used as the fin material constituting the air-side fins.
Patent CA-2233204-A1 (CA)
Title: Spiro compounds as inhibitors of fibrinogen-dependent platelet aggregation
Inventor: PAAL MICHAEL
IPC: A61K31/437
Filed: 1996-09-27
Abstract: This invention relates to certain spirocyclic compounds substituted with both basic and acidic functionality, which are useful in inhibition of platelet aggregation.
Patent CA-2234294-A1 (CA)
Title: Inspection bench with pivoting arm
Inventor: LISTER PETER FREDERICK
IPC: B23Q17/20
Filed: 1998-04-02
Abstract: Apparatus for inspection of a cutting tool by an examination device is provided.  The examination tool is preferably a camera.  The apparatus includes a base and a cutting tool mounting member on the base for attachment of a cutting tool to be inspected.  The mounting member is adapted to position the cutting tool at a viewing location for the camera.  There is a movable arm having a mounting location for receiving the camera.  The movable arm is mounted to the base for rotation such that the camera moves in a first plane that includes the viewing location.  The movable arm is also pivotable away from first plane to a second plane.  An aperture through the base permits observation of the viewing location by the camera when the arm is pivoted to the second plane.  The apparatus of the present invention permits fast, accurate and consistent measurement of the cutting surface geometry of a cutting tool.  Preferably, the mounting location for the camera is movable along the arm and includes a positioning system to automatically adjust the position of the mounting location when the arm is pivoted from the first plane to the second plane to maintain the focus of the camera.  By maintaining the focus of the camera between the first and second planes, the apparatus of the present invention permits rapid and accurate inspection of a cutting tool surface using software controlled inspection systems.
Patent CA-2234363-A1 (CA)
Title: Information access booth
Inventor: MARINESCU JOSEPH SEVER
IPC: G06F1/16
Filed: 1996-10-09
Abstract: An information access booth (1) has a display unit (9) for displaying information and an input device (11, 12, 13) for inputting information. The booth (1) has an entrance, the orientation of the entrance, the display unit (9) and the input device (11, 12, 13) being such that a user (A, A') can at least partially enter the booth (1) sideways and use the input device (11, 12, 13) and view the display unit (9) whilst standing or sitting at least partially sideways in the booth (1). The booth (1) has a door (8) for closing the entrance. The door (8) has a concave portion (17) which is adjacent to the display unit (9) when the door (8) is open thereby to facilitate the user's view of the display unit (9). The booth (1) can be used to provide secure and private access for the public to a computer network, for example.
Patent CA-2235326-A1 (CA)
Inventor: IMELAND KARE BJORN
IPC: F25D3/12
Filed: 1996-11-11
Abstract: The invention concerns a method for cooling containers, wherein cold is generated in a primary circuit (2) containing a cooling medium. Cold is supplied via a heat exchanger (5) to a cold carrier in a secondary circuit (3). The secondary circuit's cold carrier flows into a container (9) through pipes (6) with releasable couplings (13), transferring cold to the container (9) through a heat exchanger (12). Cold is stored in one or more cold stores (8, 11) in the secondary circuit, in or outside the container (9), for subsequent emission in the event of an interruption in the cold supply. The invention also concerns a cooling system (1) for implementation of the method.
Patent CA-2238149-A1 (CA)
Inventor: BOWMAN KENNETH PETER
IPC: E04B2/90
Filed: 1998-05-20
Abstract: A building exterior finishing component includes a core of an insulating material. There is a coating on the core. The coating is a light weight cementitious mixture including concrete with a polymer resin and unwoven fibers disbursed throughout the coating. The component is made by forming a core of an insulating material having a predetermined shape. A cementitious mixture of water, aggregate, a polymer resin and unwoven reinforcing fibers is coated on a portion of the core. The coating is allowed to set on the core forming a hard surface on the portion of the core. Typically the component is made at a first site by coating an insulating core with cementitious mixture and allowing the mixture to dry. A building is erected at a second site. The component is transported from the first site to the second site and connected to the exterior of the building. There is also an apparatus for making building components. A dispensing device dispenses a cementitious mixture onto a solid core. A screed is spaced-apart from the core. A conveyor moves the core relative to the screed, thereby coating the core with the cementitious coating.
Patent CA-2239640-A1 (CA)
Inventor: YOSHIHIRA AYA
IPC: B41J2/05
Filed: 1998-06-05
Abstract: A liquid discharge head is provided which allows production of a recorded image of improved quality by controlling the speed of flow of a liquid and the distribution of the speed of flow in a flow path caused in consequence of contraction of bubbles thereby stabilizing the direction of satellites arising behind main drops of discharged liquid and, at the same time, decreasing the amount itself of the satellites. This liquid discharge head comprises a movable separation membrane capable of effecting separation between a first flow path communicating with a discharge port for discharging a liquid and a second flow path furnished with a bubble generating region for generating bubbles in the liquid by means of a heating element and a movable member opposed to the bubble generating region across the movable separation membrane and furnished in the direction of liquid discharge with a free end to guide the displacement of the movable separation membrane induced by the growth of the bubbles in the direction of the discharge port and regulate the shape of displacement of the movable separation membrane as well.
Patent CA-2239690-A1 (CA)
Title: Adjustable front wheel stabilizer for power wheelchair
Inventor: PULVER DALE A
IPC: A61G5/04
Filed: 1998-06-05
Abstract: A mid-wheel drive or front wheel drive power wheelchair includes a front stabilizer extending from the frame. It includes a first arm pivotally mounted to the frame at a first or upper end and a stabilizer wheel is mounted adjacent a second end. A second arm of the stabilizer assembly is pivotally connected at opposite ends to the stabilizer wheel axis and lower end of the shock assembly associated with the suspension arm. The first arm includes a dampening cylinder surrounded by a spring. The spring force preload can be selectively altered and, independently, the height of the stabilizer wheel may be adjusted.