baber/WOPTO huggingface dataset:
Patent CA-2020243-C (CA)
Title: Optical information recording method and recording apparatus
Inventor: OHNO EIJI
IPC: G11B7/0045
Filed: 1990-06-29
Granted: 1994-12-13
Abstract: The present invention is directed to a recording apparatus which  overwrites  an  input  signal  having  pulse duration periods and pulse spacing periods to an optical disk by irradiation of a laser beam to form recording marks corresponding to the pulse duration periods.  The apparatus includes a detector  for  detecting  a  leading edge of  the pulse  duration  period  and  for  producing  a  start  signal thereupon, another detector for detecting a trailing edge of  the  pulse  duration  period  and  for  producing  a  stop signal thereupon, a pattern setting circuit for setting a predetermined basic pattern,  and a pattern generator for generating the basic pattern from its beginning in response to the start signal and for terminating the generation of the  basic  pattern  in  response  to  the  stop  signal.   The apparatus  further  includes  a  circuit  for  forming  a modulated  signal  using  a  full  or  portion  of  the  basic pattern produced from the pattern generator.  The laser is produced by the modulated signal.
Patent CA-2021908-C (CA)
Title: Beverages
Inventor: HECKERT DAVID CLINTON
IPC: A23L2/52
Filed: 1990-07-25
Granted: 1996-02-27
Abstract: A beverage containing a flavorant and green tea solids or flavanols is disclosed.  The beverage can contain sweeteners. Caffeine can also be present in the beverage in ratio of caffeine to flavanols of from about 1:1 to about 1:30.  The beverage can be carbonated or non-carbonated, i.e. a still beverage such as fruit juice or coffee.  The preferred green tea solids are catechin and epicatechin and their derivatives.  When caffeine is present, this beverage retains the alertness benefit of caffeine along with the relaxing effects attributed to the green tea solids.
Patent CA-2021986-C (CA)
Title: Hydraulically dampened engine mount
Inventor: HAMAEKERS ARNO
IPC: F16F13/00
Filed: 1990-07-26
Granted: 1994-05-31
Abstract: ABSTRACT        A hydraulic motor engine mount has a working chamber and a compensation chamber.   The chambers communicate through an overflow passage which functions in parallel with a damping passage.  The overflow passage is provided with a pressure control valve which may be operated through pressure differences between the working chamber and compensation chamber and includes a stop and a valve member, which valve member may be deflected into engagement with the stop through pressure differences between the chambers and may be deflected past the stop through an overpressure in one of the chambers.  The valve member is, in its at rest position, spaced from the stop, wherein the distance between the valve member and the stop is selected so that a mutual engagement between the stop and the valve member is substantially prevented during transmission of acoustically prominent vibrations above 30 Hz into the hydraulic engine mount.  Such a hydraulic engine mount provides for an efficient damping of low frequency engine vibrations below 30 Hz and an efficient insulation of high frequency motor vibrations from the body of a motor vehicle.
Patent CA-2024328-C (CA)
Title: Nuclear fuel bodies and the production thereof
Inventor: WOOD GEOFFREY ALAN
IPC: G21C3/62
Filed: 1990-08-30
Granted: 2000-06-20
Abstract: A nuclear fuel body provided by doped uranium dioxide grains having kernels of undoped uranium dioxide.      The body is produced by mixing single crystal seeds of uranium dioxide with doped uranium dioxide granules. The mixture is compacted and subsequently sintered.      Gadolinia is a preferred dopant for the uranium dioxide.
Patent CA-2026949-C (CA)
Title: Underpants with smooth sides
Inventor: HWANG YING-TEH
IPC: A41B9/04
Filed: 1990-10-04
Granted: 1994-11-15
Abstract: ABSTRACT OF THE DISCLOSURE     An underpants provided with smooth side panels free of protruding edges and elastic bands cover the iliac crests on both sides of the wearer for providing comfort during sleeping on either side minimize waistband discomfort and render the sides of the underpants inconspicuous when worn under a pair of trousers or skirt.
Patent CA-2039297-C (CA)
Title: Method of making polymeric fibrils
Inventor: PICKENS STANLEY R
IPC: B29B9/08
Filed: 1991-03-27
Granted: 1996-01-02
Abstract: This invention relates to a method of making thermoplastic polymeric fibrils by passing an aqueous suspension of powdered thermoplastic polymeric material at high pressure through a two-stage valve assembly of the type conventionally used in liquid homogenization.
Patent CA-2045693-C (CA)
Title: Satellite based simulcast paging system
Inventor: SCHWENDEMAN ROBERT J
IPC: G08B5/22
Filed: 1990-11-23
Granted: 1993-12-14
Abstract: A satellite based simulcast paging communication system comprises a plurality of terrestrial stations (118) capable of simulcasting the paging information with at least one satellite (102) for reception by one or more of a plurality of terrestrial receivers (900) (pagers). Also included is at least one control station (110) for determining where and how to deliver the paging information to achieve simulcast transmission.
Patent CA-2045927-C (CA)
Title: Dispositif perfectionne d'activation et de mesure pour puits non eruptifs en cours de production
Inventor: LESSI JACQUES
IPC: E21B47/10
Filed: 1991-06-28
Granted: 2002-05-21
Abstract: Dans un puits équipé pourvu d'un tube perforé dans sa partie traversant une zone de production, on descend un dispositif comportant une colonne de production en deux parties séparées par un ensemble de pompage d'effluents et un raccord à fenêtre latérale. A l'extrémité basse de la partie inférieure de la colonne, est disposé au moins un ensemble d'instruments de mesure et éventuellement un moyen d'homogénéisation des effluents avant leur traitement.  L'ensemble de mesure est relié à l'installation de surface par un câble multi-conducteurs passant de l'intérieur de la colonne à l'extérieur au niveau du raccord à fenêtre. L'ensemble de pompage est positionné dans une zone du puits acessible aux effluents produits mais suffisamment loin des portions de puits les plus déviées et/ou les plus resserrées, de manière à faciliter la mise en place de l'ensemble de pompage et éviter les risques de coîncement ou d'écrasement du câble relié à l'ensemble d'instruments.   Application à l'étude des puits de production pétrolière par exemple.
Patent CA-2050781-C (CA)
Title: Process for preparing semiconductor device
Inventor: SAKAMOTO MASARU
IPC: H01L21/285
Filed: 1991-09-06
Granted: 1997-11-18
Abstract: A process for preparing a semiconductor device comprises exposing at least a part of the main surface of a semiconductor substrate, forming a layer comprising the same main component as the above substrate, forming a flattening agent layer on the surface of said layer, removing the above layer and the flattening agent layer at the same time and injecting an impurity after said removing step.
Patent CA-2050926-C (CA)
Inventor: REAST JOHN BOLLAND
IPC: B60G17/027
Filed: 1990-03-21
Granted: 1997-09-30
Abstract: Système de suspension pour train de roues de véhicule, comprenant un premier organe de suspension (21), un deuxième organe de suspension (22) et un organe stabilisateur (25), généralement disposé parallèlement à l'axe longitudinal d'un véhicule et de façon à agir conjointement avec au moins un desdits premier et deuxième organes de suspension (21, 22), donnant au véhicule des propriétés d'antidévers lorsqu'il est utilisé dans certaines conditions dans une version préférée, le premier organe de suspension comprenant une paire de ressorts (21) et le deuxième organe de suspension (22), un ressort à lames, un ressort hélicoïdal, un dispositif de suspension hydraulique, pneumatique ou en caoutchouc (élastomérique) ou toute combinaison de ces éléments, montés sur une barre ou un tube antidévers (25). L'invention comprend également un organe de stabilisation composé ayant la forme d'une barre ou d'un tube antidévers reliant deux bras de ressorts à lames, de préférence réglable longitudinalement par rapport à ceux-ci.
Patent CA-2059309-C (CA)
Title: Wireless input system for computer
Inventor: AOYAGI TETUJI
IPC: G06F3/042
Filed: 1992-01-14
Granted: 1999-10-12
Abstract: A wireless input device for computer comprises a pen-type input device having a source of light capable of transmitting pulses. Two light receiving elements are provided and these light receiving element are disposed for detecting an incident angle of light inputted from the source of light. The wireless input device also has an input unit body having an operational unit for calculating the position of the pen-type input device from the amounts of light detected by the two light receiving elements.
Patent CA-2065601-C (CA)
Title: Process of recovering platinum group metal
Inventor: EZAWA NOBUYASU
IPC: B01J38/00
Filed: 1992-04-08
Granted: 2003-02-25
Abstract: Disclosed is a process of recovering a platinum group metal from a waste catalyst comprising a first process which comprises heating and melting the catalyst impregnated with tire platinum group metal, copper and/or the oxide of copper, a flux component and a reductant component to form a layer containing the metal copper into which the platinum group metal is absorbed and another layer of the oxide, and then separating the metal copper; and a second process which comprises supplying air or oxygen as an oxidant to the separated metal copper fur oxidizing under heating and melting to form a layer of partially oxidized metal copper and another layer of the metal copper containing the concentrated platinum group metal, and separating it. This process enables the economic recovering of the platinum group metal from the waste catalyst in a short period of time with high recovery rate.
Patent CA-2066054-C (CA)
Title: Multipurpose scale preventer/remover
Inventor: KREH ROBERT P
IPC: C02F5/00
Filed: 1992-04-15
Granted: 2002-06-25
Abstract: A process for preventing or removing calcium and rust scale deposits from surfaces which are in contact with aqueous systems comprising adding to the aqueous system 3,5-bis(di-N,N-(carboxymethyl)aminomethyl)-4-hydroxybenzenesulfonic acid in an amount effective to remove the scale and rust deposits.
Patent CA-2067685-C (CA)
Inventor: STIGBERG CARL E
IPC: B29C53/82
Filed: 1992-04-30
Granted: 1997-11-18
Abstract: A grooved, void-volume belt for use on a long nip press for dewatering a fibrous web may be manufactured by winding a grooved strip or ribbon of polymeric material onto a standard LNP belt in the form of a closed helix, and by attaching the grooved strip to the belt by suitable means.  The strip may be extruded from a polymeric material, such as polyurethane, and is provided with at least one longitudinal groove.  The method enables one to manufacture a grooved, void-volume belt without the prior necessity of coating both sides of a base fabric with a polymeric material, and of cutting grooves in the coating on the outer side of the belt.
Patent CA-2074921-C (CA)
Title: Cylindrical body label wrapping system with cam operated adjustable path length retractable heaters
Inventor: EDER ERICH
IPC: B65C3/16
Filed: 1992-07-31
Granted: 1999-07-06
Abstract: Containers are transported on rotatable support plates which are arranged in a circle on a rotating turntable.  The leading edge of a label is adhered to a container as it orbits past a vacuum-type label transfer drum.  A curved guide which is tangential to the cylindrical body of the container as the orbiting and rotating container passes it causes the label to wrap completely around the container.  One of a circular array of heat sealing elements which are rotating with the  turntable adjacent each support plate is cammed radially outwardly of the turntable into contact with the region on the container where the trailing end overlaps the leading end of the cable.  This fuses the ends of the labels together.  The cam profile is adjustable in length to keep the time during which the heat sealing member is in contact with the label ends overlap constant independently of the rotational speed of the turntable.
Patent CA-2076721-C (CA)
Title: Method of detecting a paging channel in a multifrequency radio pager network
Inventor: MATSUMOTO MARIKO
IPC: H04B7/26
Filed: 1992-08-24
Granted: 1999-03-16
Abstract: In order to detect a paging channel assigned to a pager in a shorter time in a frequency divided pager network system, a plurality of paging channels given priorities in channel searching are separately assigned to the paging areas in a manner wherein reuse in adjacent paging areas is avoided.    A frequency subset number and frequency subset indicators related thereto, are stored in a memory in a pager.          Subsequently, paging channels available in the system are allocated to the frequency subset indicators.  Further, a relationship between the frequency subset indicators and the corresponding paging channels is arranged in the form of a table and then stored in the pager.  Then, the paging channels are assigned to the paging areas according to the relationship.  The above mentioned paging channels given priorities in channel detection are monitored so as to detect which priority channel is transmitted to the pager.  In the event that the pager detects one of the priority paging channels, the pager is tuned to other paging channels according to the relationship.
Patent CA-2077533-C (CA)
Title: Gas assisted injection molding
Inventor: LOREN NORMAN S
IPC: B29C45/17
Filed: 1991-03-27
Granted: 2002-05-07
Abstract: A method and apparatus for providing gas assistance in a resin injection molding process of the type in which hot resin is injected into a mold, gas is injected into the mold to displace a portion of the resin in the mold, the resin cools, the gas is vented, and the mold is opened to remove the molded part. The apparatus includes a high pressure gas storage system, a plurality of pressure control assemblies set at varying pressures and interposed between the high pressure gas storage system and the injection nozzle, and a control system which is operative to selectively communicate each of the pressure control assemblies with the injection nozzle so as to allow the delivery of gas at varying pressures to the mold to facilitate the creation of an individualized gas pressure profile to suit the particular molding requirement. The apparatus further includes a supplemental gas storage system including a plurality of gas storage containers interposed between the pressure control assemblies and the injection nozzle so that the supplemental gas storage system may be used in selective cooperation with the pressure control assemblies to provide further versatility with respect to the ability to tailor the pressure profile to the particular molding requirement.
Patent CA-2078958-C (CA)
Inventor: HENRICSON KAJ
IPC: D21C11/00
Filed: 1992-09-23
Granted: 1995-01-17
Abstract: ABSTRACT OF THE DISCLOSURE            The sulphur content and/or the sulphur compound composition of a melt in a recovery boiler of a pulp mill is adjusted by bringing a gas into contact with the melt.  The gas may be a gaseous sulphur compound or a reducing gas.  Bringing the gas into contact with the melt increases the sodium sulphide content of the melt while decreasing the sodium carbonate  content,  so  that the sulphidity of the melt increases.  The sulphur-containing gas may be produced by pressure heat treatment of black liquor, so that the black liquor burned in the recovery boiler has a lower sulphur content and thereby reduces the boiler sulphur emissions, and boiler corrosion problems.
Patent CA-2079673-C (CA)
Inventor: SEAGRAVE CHARLES GORDON
IPC: G03B31/00
Filed: 1992-02-04
Granted: 2001-11-20
Abstract: The invention relates generally to a storage medium carrying symbols representing digital information, the rec-overy from a storage medium of symbols representing digi-tal information and the determination of the digital infor-mation represented by such symbols. More particularly, the invention relates to storage media carrying the symbols in two dimensions and to the recovery of such symbols by oversampling in two dimensions. While the invention has many applications, the invention is described in connec-tion with preferred embodiments in which the symbols are carried by and recovered from an optical-storage medium, namely, motion picture film, the symbols representing digi-tal information into which motion picture soundtrack and related information is encoded.
Patent CA-2081068-C (CA)
Title: Antiviral 4-substituted-2-deoxy-2,3-didehydro-derivatives of .alpha.-d-neuraminic acid
Inventor: VON ITZSTEIN LAURENCE MARK
IPC: A61P31/00
Filed: 1992-10-21
Granted: 2005-11-29
Abstract: N-Acetylneuraminic and derivatives of formula (I) <See formula I> pharmaceutical formulations thereof, their use in medicine, in particular as antiviral agents and methods for their preparation are described.
Patent CA-2082460-C (CA)
Inventor: DAUDER GUARDIOLA AGUSTIN
IPC: B65C9/26
Filed: 1992-11-09
Granted: 1996-07-02
Abstract: Automatic labeling machine, for containers in the form of mesh bags or the like, which presents a carriage 18 displaceable back and forth in a support plate 19, which incorporates a central, lengthwise channel 20, two lateral connecting rods 23 and 24 being articulated in the carrige, one with an external stud and the other with a lever 25, joined together at their free ends by means of a brace 26, in which is fixed a finger 27 carrying small catches 28, which can be introduced into the channel 20 with intercalation of the corresponding part of the label to be dragged toward the discharge from the machine; and presenting a push rod 32 temporarily retaining said stud, provided with a plane 32a inclined to the inside in its free end and which can be freed by a bumper 36 joined to the corresponding connecting rod 24, and the lever 25 actuates a cutting means 16.
Patent CA-2085629-C (CA)
Title: Detachable lever action article carrier
Inventor: WYERS PHILIP W
IPC: B60R9/06
Filed: 1992-12-17
Granted: 1996-04-02
Abstract: A detachable carrier for mounting articles such as bicycles to a motor vehicle is disclosed.  The carrier disclosed includes a frame with laterally spaced side portions and a lower offset portion that rests on a surface of the carrying vehicle.  This surface is either a horizontal surface or a horizontal and vertical surface provided by the bumper either at the front or the rear of a motor vehicle.  The lower end portions of the offset portions form a fulcrum with the support surface of the vehicle about which the frame will turn in a lever action.  A lower pair of laterally spaced fastening straps with appropriate end fasteners secure a lower portion of the frame to the vehicle and an upper pair of laterally spaced fastening straps with appropriate end fasteners secure an upper part of the frame to the vehicle.  An article support on a pivotal hub assembly extends out from the sides of the frame in an extended position and is folded to a down position between the side portions of the frame when not in use.  A locking arrangement allows the support arms to be locked at any angular position and between the extended and retracted positions.
Patent CA-2088353-C (CA)
Title: Method and apparatus for measuring intracranial pressure
Inventor: MICK EDWIN C
IPC: A61B5/00
Filed: 1991-07-30
Granted: 2002-01-08
Abstract: A method and apparatus for non-inva-sivety measuring changes in intracranial pres-sure (ICP) in a patient's skull which allow trends in such pressure to diagnose over time.     A method performed, or an apparatus made in accordance with the instant invention com-prises a generation of a predetermined vibra-tion signal which is applied to a first location on a skull (10), detecting an output vibration from a novel location on the skull (12), storing data characteristics of the two signals, repeat-ing the above-mentioned steps over time, and analysing the data to diagnose changes in ICP over time.
Patent CA-2089617-C (CA)
Title: Control circuit for automatically controlled feed forward nonlinear distortion compensation amplifier
Inventor: SAKAMOTO HIRONORI
IPC: H03F1/30
Filed: 1993-02-16
Granted: 1998-06-23
Abstract: A control circuit for an automatically controlled feed forward nonlinear distortion compensation amplifier.  The control circuit controls a distortion detection loop and a distortion removal loop.  The distortion detection loop is a loop for feeding forward input to a main amplifier into a first directional coupler.  The distortion removal loop is a loop for feeding forward distortion elements into a second directional coupler.  The main amplifier is preceded by a variable attenuator and a variable phase shifter.  A variable attenuator and a variable phase shifter are also located in a feed forward path to the second directional coupler.  The control circuit controls the variable attenuator and the variable phase shifter preceding the main amplifier for detecting the distortion elements.  The control circuit controls the variable attenuator and the variable phase shifter located in the feed forward path to the second directional coupler for removing the distortion elements.  A temperature compensation signal and an adjustment signal are added to a control signal by each adder provided at the output stage of the control circuit.
Patent CA-2090493-C (CA)
Inventor: KANTELINEN ANNE
IPC: C12N9/42
Filed: 1991-08-27
Granted: 2002-11-12
Abstract: The invention concerns a process for hydrolyzing hemicelluloses, especially xylan, using an enzyme preparation isolated from Trichoderma reesei, containing an endo-.beta.-xylanase I (pI 5.5) and an endo-.beta.-xylanase II (pl 9.0). The invention further con-cerns the use of this enzyme preparation in the improving of the sheet properties and the bleachability of pulps and for the pro-ction of sugars from hemicellulosic substrates.
Patent CA-2095949-C (CA)
Title: Self aligning hitch
Inventor: DEGELMAN PAUL W
IPC: B60D1/40
Filed: 1993-05-11
Granted: 1996-07-02
Abstract: A self aligning hitching device having a tongue support mountable on a vehicle or vehicle hitch.  The tongue support has a mounting support so that the tongue support can easily be mounted on a vehicle.  A tongue is provided that is mounted in the tongue support and is slideably free floating when in the unlocked position.  It is at this time the connection is made between the towed & towing vehicles.  Both the tongue and tongue support have wedging surfaces that guide the tongue now connected to a wedged or fully seated position at which time a spring biased locking pin secures them both together so that a towing vehicle carrying the tongue support and a towed vehicle connected to the tongue are now joined and ready for a towing movement.
Patent CA-2097314-C (CA)
Title: Self-sealing threaded fastener and process for making the same
Inventor: POLLIZZI MARIO
IPC: F16B33/00
Filed: 1991-11-26
Granted: 1996-02-06
Abstract: An integral sealing element is bonded directly to the engaging surface and selected threads of a threaded fastener.          The sealant is a soft pliable olefin or polyolefin based material and is designed to flow between the engaging surface of the fastener and the abutting bearing surface of a recep-tacle as the fastener is threadably tightened into the recep-tacle for creating a tight seal between the threaded fastener and the receptacle.