baber/WOPTO huggingface dataset:
Patent CA-2238333-C (CA)
Title: Transmission link supervision in radiocommunication systems
Inventor: FALL ORJAN
IPC: H04Q7/30
Filed: 1996-11-08
Granted: 2006-07-04
Abstract: A digital cellular communications system has a bidirectional transmission link for conveying encoded speech and control data in the form of blocks, a switching unit coupled to a first end of the transmission link, and a base station coupled to a second end of the transmission link. The switching unit includes a speech encoder for encoding speech signals, an error detection code generator for generating an error detection code from the encoded speech signal, and a formatter, coupled to the error detection code generator, for producing a formatted block to be transmitted on the transmission link, the formatted block having a header, the encoded speech data, and the error detection code. The base station has a transmission link error detector for signalling the existence of an error in a received block in response to the received block containing an error. Similarly, the switching unit has a transmission link error detector for signalling the existence of an erroneously received block which has been transmitted in the uplink direction.  The number of errors is monitored by a transmission link supervisor which reports if the errors indicate that the quality of the transmission link has degraded beyond a predetermined threshold.
Patent CA-2245359-C (CA)
Title: Pressure modulation valve assembly
Inventor: FINCHER ROGER W
IPC: E21B4/00
Filed: 1998-08-19
Granted: 2005-11-01
Abstract: A drillstring pressure-modulation valve is disclosed which is usable in combination with a downhole drilling motor and a drillstring thruster to compensate for changes in pressure drop through the drilling motor which normally occur during drilling.  When conditions chnage during drilling, which in turn changes the pressure drop through the drilling motor, the drillstring pressure-modulation valve compensates for such changes to minimize the effect of such changes on the operation of the thruster and the resulting WOB created by the thruster. The modulation valve has a feature which allows it to find automatically a balanced preload condition for the main needle valve, the primary functional element within the modulation valve, each time the rig pumps are turned off and then turned on. The modulation valve is fully self-contained, and is assembled as part of the bottomhole assembly. The device senses the no-load pressure drop in the system and sets itself each time the rig pumps are turned on to compensate for any change in the no-load pressure drop experienced below the device which could be attributable to such things as motor wear, bit nozzle plugging, or changes in the flow rate.  Accordingly, the hydraulic thrusting force remains constant over a wide range of drilling environments. As the drilling conditions change and the pressure drop in the downhole motor increases, the needle valve shifts to compensate for such additional pressure drop with a resultant small or no effect on the thruster and the resulting WOB created by the thruster located upstream of this modulation valve.
Patent CA-2247180-C (CA)
Inventor: WAGNER DANIEL G
IPC: F04B49/03
Filed: 1998-09-10
Granted: 2002-11-12
Abstract: Apparatus for rapidly exhausting air pressure from an intercooler pneumatically connected to receive compressed air from an air compressor. The apparatus includes a blowdown valve pneumatically connected to receive air pressure contained in the intercooler. The valve has a large exhaust port and a valve member seatable against the port to open and close the same. An inlet port is provided for admitting a compressor unload signal to the valve, with the unload signal being effective to move the valve member away from the large exhaust port to allow rapid exhaustion of intercooler air pressure to atmosphere through the exhaust port.
Patent CA-2249162-C (CA)
Title: Dispositif a ouverture facile destine a des contenants
Inventor: EVERT DANIEL DON
IPC: B65D5/70
Filed: 1998-09-30
Granted: 2004-07-06
Abstract: L'invention comprend un récipient, de préférence en carton ou autres matériaux d'emballage, avec un dispositif à ouverture facile incluant un onglet d'ouverture dans une paroi ou un panneau du récipient permettant une ouverture de distribution dans le récipient. L'onglet d'ouverture est formé par une première ligne de découpe située sur la surface intérieure d'une paroi ou d'un panneau du récipient et d'une deuxième ligne de découpe située sur la surface extérieure d'une paroi ou d'un panneau, à un écart d'une distance prédéterminée de la première ligne de découpe. Les première et deuxième lignes de découpe créent une zone de rupture dans la paroi ou le panneau, ce qui permet à l'onglet d'ouverture de se séparer de la paroi du récipient. La zone de rupture fournit aussi des parties de retenue afin de contrôler et de résister à la séparation involontaire ou inattendue de tout ou partie de l'onglet de la paroi du récipient.
Patent CA-2254001-C (CA)
Inventor: ANDOLFATTO FRANCOISE
IPC: C25B15/02
Filed: 1998-12-08
Granted: 2002-04-23
Abstract: An oxygen reduction cathode type membrane electrolysis cell is immobilized by filling the gas compartment with demineralized water of pH ≤ 7. A membrane electrolysis cell, with an oxygen reduction cathode, is immobilized by terminating current and oxygen supply to the cell, filling the emptied gas compartment with demineralized water of pH ≤ 7, rinsing the cathode with the demineralized water of the gas compartment until the pH equals that of the introduced water and keeping the gas compartment filled with the demineralized water throughout the immobilization period. Preferred Feature: The anodic compartment is emptied and refilled with clean anolyte of the same type and concentration and the soda compartment is emptied and refilled with a 0.5-5 mol/l caustic soda solution.
Patent CA-2254911-C (CA)
Inventor: MOY DAVID
IPC: H01M4/58
Filed: 1997-05-15
Granted: 2006-07-25
Abstract: Graphitic nanofibers, which include tubular fullerenes (commonly called "buckytubes"), nanotubes and fibrils, which are fucntionalized by chemical substitution, are used as electrodes in electrochemical capacitors. The graphitic nanofiber based electrode increases the performance of the electrochemical capacitors.
Patent CA-2258692-C (CA)
Inventor: HARRISON DANIEL DAVID
IPC: H04B1/708
Filed: 1997-07-03
Granted: 2009-06-16
Abstract: A direct sequence spread spectrum receiver samples an incoming signal and stores the sample in memory. Power is then inhibited to the tuner of the receiver to minimize power consumption. The signal sample may be read from memory when necessary to process the signal without further signal acquisition. Power to other receiver sections may be selectively controlled to minimize power consumption. Such a receiver is useful in global positioning satellite (GPS) signal processing where the receiver has a limited power supply.
Patent CA-2261095-C (CA)
Inventor: BRETON LIONEL
IPC: A61P17/08
Filed: 1997-07-11
Granted: 2004-01-27
Abstract: Novel compounds of the aryl 2,4 dioxo oxazolidine family, a method for synthesising same, compositions containing said compounds, and the use of an effective amount of at least one of said compounds as an active principle in a physiologically acceptable medium in a cosmetic composition or for preparing a pharmaceutical composition, are disclosed. Said compound or said compositions are useful for inducing and/or stimulating hair growth and/or controlling hair loss and/or treating hyperseborrhea and/or acne.
Patent CA-2266592-C (CA)
Title: Aqueous fuel emulsion identification system and anti-tampering device for an internal combustion engine
Inventor: COLEMAN GERALD N
IPC: G01N33/28
Filed: 1997-08-11
Granted: 2006-04-18
Abstract: A system (10) and method for the identification of the fuel (24) being transported within a fuel delivery system of an internal combustion engine (22) that may utilize an advanced fuel (24) such as a fuel in water emulsion is provided. The identification of the fuel (24) is accomplished using a fuel identification sensor (20) that distinguishes the fuel type based on differences in optical properties, electrical properties, physical properties, or other characteristics between an aqueous fuel emulsion and a conventional fuel (24). The disclosed fuel identification device is readily incorporated in an anti- tampering device for preventing the use of a conventional fuel (24), such as diesel fuel, in an engine (22) designed and certified for aqueous fu el emulsions.
Patent CA-2267361-C (CA)
Inventor: YAMADA KAZUKI
IPC: B65D81/38
Filed: 1998-08-27
Granted: 2008-10-07
Abstract: A heat-insulating container (1) is used for an instant dried food and is excellent in heat-insulating property, design and economy. The container comprises a paper cup body (2) with a bottom (2b), which has an inner surface coated with a polyolefin resin and is provided with an outward curled portion (2c) formed at an upper opening end of the cup body and at least one horizontal rib (2d) formed on a side wall of the cup body so as to project outward therefrom; and an inverse-frustoconical paper sleeve (3) provided with an inward curled portion (3a) formed at a lower end of the sleeve. The cup body and the sleeve are integrally combined with each other so that an upper need of the sleeve is joined to an outer periphery of the side wall of the cup body, which is adjacent to the outward curled portion of the cup body, and an inner surface of the inward curled portion of the sleeve is joined to an outer periphery of a lower portion of the side wall of the cup body.
Patent CA-2271574-C (CA)
Inventor: PARE YVON
IPC: A47J31/40
Filed: 1999-05-13
Granted: 2008-02-12
Abstract: A machine for dispensing a predetermined quantity of liquid upon actuation of a start switch is described herein. The machine includes a timer and at least one peristaltic pump connected to the timer. Upon actuation of the start switch, the timer energizes the peristaltic pump for a predetermined period of time to therefore transfer a predetermined quantity of liquid from a main reservoir to a cup.
Patent CA-2272067-C (CA)
Title: Latency counter for scanning timers
Inventor: SANCHEZ LEON ALVARO
IPC: H04M3/22
Filed: 1997-11-11
Granted: 2005-09-20
Abstract: A latency counter for use in relatively complex systems having relatively large numbers of devices with associated timers. Whenever a timer is activated by setting a time period, the latency counter is set to the larger of its current value or a value associated with the time period of the last-expiring timer. Prior to scanning the timers to determine if a timer has expired, the latency counter is checked. If the value of the latency counter is equal to a predetermined value, then no timers are active and no scanning is performed. If the value of the latency counter is not equal to the predetermined value, the latency counter value is modified and a scanning operation of each timer is perfomed to determine if any timers have expired. Considerable processing resources can be saved.
Patent CA-2275599-C (CA)
Title: Multi-speed winch
Inventor: AHO RICHARD E
IPC: C03C1/02
Filed: 1997-12-16
Granted: 2003-10-21
Abstract: A multi-speed winch (70, 80) is attached to a motor vehicle (200) and is hydraulically powered by the vehicle's power steering system (12) or other hydraulic source innate to the host vehicle (200). The winch operates in either a low-speed, high-torque mode for moving heavy loads, a high-speed, l ow- torque mode for quickly releasing or retrieving cable (82), a free-spooling mode for manually releasing cable (82), and a brake mode for holding the cab le and load at a fixed position. The high-speed mode is enabled by coupling the drive shaft (75) directly to the winch drum (80). The low-speed mode is enabled by coupling the drive shaft (75) to the winch drum (80) through a planetary gear assembly (83a-c, 84). In an alternate embodiment, high-speed mode is enabled by coupling the drive shaft (248) to the winch drum (250) through one of two planetary gear assemblies. Free-spooling mode is achieved by disengaging the drive shaft (248) from the winch drum (250), and brake mo de is achieved by engaging both the direct drive coupling (120) and the sun and planet gear arrangement (83a-c, 84). The four operational modes are selected by four different combinations of positions of a direct drive selector handl e (134) (which determines the position of the coupling plate) and a gear reduction handle (8) (which determines the position of the locking pin). In an alternative embodiment, the four operational modes are selected by four different combinations of positions of a direct drive solenoid (140) and a gear reduction solenoid (148). A four-way, dual solenoid-operated valve (20) controls the flow of pressurized hydraulic fluid to the winch motor (70).</S DOAB>
Patent CA-2282367-C (CA)
Title: Constant flow cascade lubrication system
Inventor: MINASSIAN KHAJAK JACK
IPC: F16N7/36
Filed: 1998-02-10
Granted: 2006-10-03
Abstract: A system for lubricating bearings on a vertical rotatable shaft within a bearing housing, is comprised of an annular lower lubricant sump (40) at a lower portion of the bearing housing (11); an annular upper lubricant reservoir at an upper portion of the bearing housing; and a conduit providing fluid communication between the lower lubricant sump (12) and the upper lubricant reservoir (20). Provision is made for metering a flow of lubricant from the upper lubricant reservoir (20), into upper bearings (14). The lubricant is pumped from the lower lubricant sump (40), through the conduit (35), to the upper lubricant reservoir (20) at a rate exceeding the rate of metered flow into the upper bearings (14). A constant head of lubricant above the metering orifice is provided in the upper lubricant reservoir (20), as well as an outlet for shunting excess lubricant back to the lower lubricant sump.
Patent CA-2283951-C (CA)
Title: Method for downloading data to gaming devices
Inventor: WILDER RICHARD
IPC: G06Q50/34
Filed: 1999-09-27
Granted: 2004-05-18
Abstract: Memories coupled to a gaming terminal, are reprogrammed by a method and apparatus which includes identification, negotiation, downloading and verification information from an external information source to a gaming terminal. Hardware devices are used to identify gaming terminals or components.
Patent CA-2288429-C (CA)
Title: Pegylation of polypeptides
Inventor: THOMPSON ROBERT C
IPC: C12N9/00
Filed: 1992-03-13
Granted: 2006-04-25
Abstract: Compounds are disclosed having the general formula R1-X-R2, wherein R1 and R2 are biologically active groups, at least one of which is polypeptidic. X is a non-peptidic polymeric group. R1 and R2 may be the same or different.      Preferred R1 and R2 groups are interleukin-1 receptor antagonist, 30k Da TNF inhibitor, interleukin-2 receptors and CR1 and muteins thereof. Also included are site selectively modified interleukin-1 receptor antagonist and 30k Da TNF inhibitor.
Patent CA-2288580-C (CA)
Inventor: CARTER SAM W
IPC: B24B23/02
Filed: 1999-11-05
Granted: 2009-01-20
Abstract: The burnishing tool has a shank that is mountable in a hand drill chuck. An end of the shank is received in a bore in an inside member with a conical inside burnishing surface. A transverse shaft passes through a slot through the inside member and a bore through the spindle to connect the inside member to the shank and to permit limited axial movement between the inside member and the shank. A cup member with an outside conical burnishing surface has a hub that receives a post on the inside member. The transverse shaft that connects the inside member to the shank also passes through a bore through the hub to secure the cup member to the shank. The connections between the shank, the inside member and the cup member permit movement of these members relative to each other to align the conical burnishing surfaces with pipe surfaces. The burnishing tool for two pipe diameters has a shank with a first conical burnishing surface on a shank. Second and third conical burnishing surfaces are on an inside cup member that receives the shank and is axially movable relative to the shank. A fourth conical burnishing surface is on an outside cup member that receives the shank and is substantially axially fixed relative to the shank.
Patent CA-2290782-C (CA)
Inventor: EIELSEN JAN INGE
IPC: F16K15/03
Filed: 1998-05-19
Granted: 2007-07-17
Abstract: Cette invention se rapporte à un dispositif d'arrêt actionnable par fluide, tel qu'une vanne d'arrêt, qui comporte un logement (1) de vanne traversé par un passage (2) pour l'écoulement d'un fluide et un corps (3) de vanne supporté de manière à pouvoir se déplacer entre une position d'ouverture de la vanne, dans laquelle le corps (3) de vanne est principalement en retrait par rapport au passage pour écoulement (2), qui se trouve de ce fait dégagé, et une position de fermeture de la vanne, dans laquelle le corps de vanne obstrue le passage pour écoulement (2). Le corps (3) de vanne est conçu pour fermer la vanne en cas de conditions d'écoulement anormales, au moyen d'une partie (7) qui est formée de façon que le fluide qui s'écoule fournisse une force de levage qui a un effet sur le corps (3) de vanne et tend à le déplacer en direction de la position de fermeture. Le corps (3) de vanne peut ainsi être fermé lors d'un accroissement anormal du débit, de la densité ou de la viscosité du fluide. Ladite partie (7) peut également être supportée par une plaque de prolongement conçue pour pousser la surface de levage plus avant dans le passage pour écoulement en raison de modifications de la pression et/ou de la température du fluide, ce qui accroît l'effet de levage de sorte que le corps (3) de vanne se ferme. Ladite partie de vanne est équipée de bouchons (11) conçus pour fermer en séquence les étranglements pour l'écoulement du fluide hydraulique/pneumatique entre les chambres 4-6 de manière à commander la vitesse de fermeture du corps (3) de vanne, ce qui permet d'éviter les à-coups dans le système de canalisations équipé de ladite vanne.
Patent CA-2298994-C (CA)
Title: Electrochemical system for determining blood coagulation time
Inventor: FRENKEL ERIK JAN
IPC: C12Q1/37
Filed: 2000-02-21
Granted: 2010-01-26
Abstract: Electrochemical system for measuring a value representing the coagulation time of a drop of whole blood including: - an electrochemical sensor in the shape of a strip of small dimensions bearing at least a reference electrode and a working electrode on which a specific reagent is immobilised, including at least one chemical substrate one terminal link of which can be cut off by the thrombin enzyme to give charged groups (LG), and - a measuring apparatus intended to receive said sensor allowing a given voltage or current to be imposed across the electrodes of the sensor, the electric signal resulting from the migration of the charged groups to be processed, said signal to be correlated with a value representing the coagulation time, and said value to be displayed on a display panel. The specific reagent preferably includes an oligopeptidic derivative as a substrate, a thromboplastin and a buffer medium.
Patent CA-2302910-C (CA)
Title: Projections on face of electrical receptacle for preventing inadvertent tripping of test switch by oversized electrical plug
Inventor: CLARK CHRISTOPHER J
IPC: H01H9/02
Filed: 2000-03-29
Granted: 2007-06-12
Abstract: An electrical receptacle includes a receptacle body, test and reset switches and a pair of projections. The body has electrical elements disposed therein for making electrical contact with an electrical plug of various diameter sizes. The body has a face with a set of apertures for receiving prongs of the electrical plug for mating of the plug with the receptacle. The switches are mounted to the face of the body adjacent to the set of apertures and are actuatable to affect operation of the electrical elements. The projections are made of a substantially rigid material and mounted to the face of the body adjacent to the test switch and the set of apertures and protrude from the body. The projections extend outwardly from the face of the body adjacent to the test switch such that upon mating with the receptacle a plug having an oversized diameter will engage the projections and thereby be prevented from making contact with the test switch sufficient to cause tripping thereof and thereby avoid inadvertent actuation of the test switch. The height of the projections is at least as great as the height of the test switch. The projections are located adjacent to opposite ends of the test switch.
Patent CA-2302918-C (CA)
Inventor: GROLL WERNER
IPC: A61K6/84
Filed: 2000-03-23
Granted: 2007-05-29
Abstract: A device for handling dental implants with a locking screw, comprises an adapter, which is secured to the implant by means of a central screw. A ratchet insert can be snap- connected to the adapter in a positive-locking manner. By means of a screwdriver rotatably arranged in the ratchet insert, a screw connecting the adapter to the implant can be released. The implant connected to the adapter is held by a two-part holding hub in a receptacle. The implant is handled by means of the ratchet insert and is screwed into the prepared bore in the jaw.
Patent CA-2304398-C (CA)
Title: Dispositif et procede de protection d'une ligne d'un reseau de lignes d'alimentation en energie electrique
Inventor: BASTARD PATRICK
IPC: H02H7/30
Filed: 2000-03-29
Granted: 2008-05-20
Abstract: Ce dispositif de protection d'une ligne (10, 12) d'un réseau de lignes d'alimentation comprend deux relais de protection (18, 20 ; 22, 24) munis de moyens de détection de défauts et un disjoncteur adapté pour déconnecter la ligne du réseau de lignes en présence d'un défaut, chaque relais étant adapté pour réaliser une surveillance d'une première zone (Z1) de la ligne correspondant à une zone de détection certain e d'un défaut (10, 12) et d'au moins une deuxième zone (Z2) juxtaposée à la première zone et correspondant à une zone de détection incertaine d'un défaut. Au moins un de s relais comporte des moyens de détection de l'ouverture du disjoncteur associé à l'autre relais en réponse à une détection, par ce dernier, d'un défaut en première zone de manière à provoquer l'ouverture du disjoncteur associé audit au moins un relais (18, 2 0 ; 22, 24). Les moyens de détection de l'ouverture du disjoncteur comportent des moyens de calcul d'une caractéristique représentative de la variation d'une valeur de mesure de l'impédance de la ligne et des moyens de comparaison de cette caractéristique avec une valeur de seuil.
Patent CA-2316077-C (CA)
Inventor: INOUE KAZUSHIRO
IPC: F16H48/20
Filed: 2000-08-17
Granted: 2007-09-18
Abstract: In a saddle seat type motor vehicle 10 for use on uneven ground and including a front final assembly 21 provided between left and right front wheels 13 and 14, the front final assembly 21 provides the left and right front wheels 13 and 14 with driving torques differentiated at a predetermined ratio when the wheels 13 and 14 rotates at different speeds. When the motor vehicle turns, large driving torque is supplied to inner wheels rotating at low speeds compared with outer wheels rotating at high speeds. This enables the motor vehicle to turn effectively and to reduce steering effort.
Patent CA-2325763-C (CA)
Inventor: SRULIJES JULIO
IPC: F42B15/34
Filed: 2000-11-02
Granted: 2008-08-12
Abstract: A procedure is suggested to reduce pressure and temperature on the front of a missile at ultrasonic speed whereby a spike with a spherical, ellipsoidal, or drop-shaped mount is used on the front end. In contrast to conventional shapes, the sensitive nose of the missile is protected from damaging pressure and temperature, even at high angles of incidence. This makes it possible to create missiles that are highly manoeuvrable at high ultrasonic speeds without high pressures and temperatures arising at the front. The resistance and hence the required thrust of such a missile is strongly reduced when the invention is used which correspondingly increases the range and flight duration of such a missile.