baber/WOPTO huggingface dataset:
Patent CA-2031481-C (CA)
Title: Gas-insulated three-pole high-voltage switch
Inventor: ABAD DOMINIQUE
IPC: H01H33/02
Filed: 1990-12-04
Granted: 2000-08-29
Abstract: A high-voltage switch 10, with a sealed metal enclosure 12 is filled with SF6, and houses three pole-units 14, 16, 18 actuated by an operating bar 78. Each pole-unit comprises a pair of stationary contacts 36 and movable contacts 54, a compression gas-blast device 64, the assembly being capped by an insulating revolution chamber 58. The latter comprises a bearing 66 guiding the sliding rod 55 in translation, and a fixed cylinder 62 cooperating with the piston 68 of the gas-blast device 64. The base of the chamber 58 is fixed by screws to the metal enclosure 12 which plays the role of ground ring for the three pole-units.
Patent CA-2035046-C (CA)
Title: Reading sleeve
Inventor: LOGAN DONNA M
IPC: A41D13/08
Filed: 1991-01-28
Granted: 1995-07-18
Abstract: A reading sleeve for removable covering of an arm and shoulder of a user comprises an arm covering sleeve having first and second opposed ends.  A shoulder covering portion extends from the first end of the arm covering sleeve for removable securement of the reading sleeve on the arm and shoulder of a user.  The second end of the arm covering sleeve is a cuff-like opening in the sleeve adapted to receive therethrough a hand and wrist of the user.  The shoulder covering portion comprises opposed front and back shoulder covering flaps, the flaps defining therebetween a shoulder receiving opening whereby the arm of the user may be passed through the shoulder receiving opening in the shoulder covering portion so as to extend the hand and wrist from the second end of the arm covering sleeve.  The shoulder os a user is thereby covered by the shoulder covering portion.  The arm covering sleeve may be tubular or conical.  The shoulder covering flaps may be joined along their top edge.
Patent CA-2036617-C (CA)
Title: Lifting apparatus
Inventor: KISHI MITSUHIRO
IPC: B66F11/04
Filed: 1991-02-19
Granted: 1996-04-23
Abstract: A lifting apparatus having a base, a platform disposed above the base, and a vertically extendable mast arrangement coupled between the platform and base to effect vertical lifting of the platform.  The mast arrangement normally includes a pair of vertically extendable mast assemblies disposed in parallel relationship, and each having plural vertically elongate masts disposed in vertical sliding relationship with one another.  One mast is fixed to and projects upwardly from the base, another is fixed to the platform, and at least one additional mast is vertically slidably coupled therebetween.  Each mast has sequencing structure associated therewith for requiring that the individual masts be vertically extended in a controlled sequence, and also has a locking structure for vertically fixedly coupling adjacent masts together when one is vertically extended relative to the adjacent mast.  A winding arrangement, including pulleys mounted on the masts and engaged with a cable, couple the base and platform to control vertical raising and lowering.
Patent CA-2036778-C (CA)
Title: Method of forming trench isolated regions with sidewall doping
Inventor: GRULA GREGORY J
IPC: H01L27/08
Filed: 1991-02-20
Granted: 1995-10-03
Abstract: In a semiconductor substrate, a method of forming a shallow isolation trench having a doped sidewall is disclosed.          A shallow trench having nearly vertical walls is formed in the semiconductor substrate.  A doped silicon layer is selectively grown on a sidewall and a portion of the bottom of the trench.          The dopant from the silicon layer is then driven into the substrate by a suitable method such as annealing.  The trench is subsequently filled with a dielectric material.
Patent CA-2042390-C (CA)
Inventor: FITE FRANKLIN D JR
IPC: H04L69/40
Filed: 1990-11-02
Granted: 1994-08-30
Abstract: Abstract An arrangement is disclosed for recovering from faults in transmission equipment or facilities forming so-called virtual circuits for transmitting packets in a network. Faults are detected in transmission paths associated with a network node and a fault indication is generated for any virtual circuits passing through the node that are affected by the fault. The fault indications are then transmitted on corresponding ones of the affected virtual circuits or on other designated virtual circuits. If any of the affected virtual circuits are terminated in the node, no fault indications are generated for them and they are switched to alternate virtual circuits. Otherwise, the fault indications are transmitted on corresponding virtual circuits or on other designated virtual circuits over facilities connected to the node to other unknown nodes. A node receiving a fault indication message determines whether the corresponding virtual circuit is terminated at the node, has one or more alternate virtual links in the node, or passes through it to some other unknown node. If an affected virtual circuit is terminated in the node, or has one or more alternate virtual links in the node, it is switched to an alternate virtual link. If the affected virtual circuit is not terminated in the node, and has no alternate virtual link present, the corresponding fault indication message is passed, i.e., switched, through it on that virtual circuit over a facility to some other unknown node.
Patent CA-2044881-C (CA)
Title: Method and apparatus for low pressure casting of metals and mould for use thereof
Inventor: SOURLIER PASCAL
IPC: B22C9/02
Filed: 1991-06-18
Granted: 1995-10-31
Abstract: In this mould, the sum of the areas of the cross-sections of the runners (30) in service is, at at least one casting instant, greater than the area of the cross-section of the casting pool (28), or at least of the same order as this area. This makes it possible to slow down the metal during its passage in the runners and thus to obtain non-turbulent filling of the impressions. 
<??>Application to the multi-stage moulding of thin-wall castings. 
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Patent CA-2046547-C (CA)
Title: Synchronous telemetry system for an implantable medical device
Inventor: HENRY DONALD A
IPC: A61N1/372
Filed: 1991-07-09
Granted: 1995-02-14
Abstract: ABSTRACT OF THE DISCLOSURE     A synchronous telemetry system and method for multiplexed telemetry of analog and digital information from a pacemaker or other implantable medical device.  Telemetry sync pulses are generated at a 1 kHz rate, and pulse-position modulation is employed for generating an analog data pulse and a digital data pulse relative to the same sync pulse and displaced therefrom by different intervals respectively corresponding to the instantaneous value of an analog input signal and the instantaneous state of a digital input signal.  In addition to multiplexing of analog and digital information in a composite bit, multiplexing is provided for dual-channel analog operation.
Patent CA-2050422-C (CA)
Title: Gas phase polymerisation process
Inventor: MARTENS ANDRE
IPC: C08F2/34
Filed: 1991-08-30
Granted: 2002-07-30
Abstract: The present invention relates to a continuous process for the polymerization of an alpha-olefin having from 2 to 12 carbon atoms, which is carried out in a gas phase polymerization reactor by bringing a gaseous reaction mixture, containing the alpha-olefin to be polymerized, into contact with a catalyst system of the Ziegler-Natta type consisting of a solid catalyst comprising at least one compound of a transition metal belonging to groups IV, V or VI of the Periodic Table, of the elements, and of a cocatalyst comprising at least one organometallic compound of a metal belonging to groups II or III of the Periodic Table in which the polymerization reactor is fed with alpha-olefin at a constant rate.
Patent CA-2051682-C (CA)
Title: Device for depositing and automatically positioning of seedlings
Inventor: FERRAND CLAUDE
IPC: A01C11/02
Filed: 1990-04-24
Granted: 1998-10-20
Abstract: This invention involves a device for the automatic placement and positioning of plants.  It is comprised, on the one hand, of a vertical positioning element (1), the upper part of which is cone-shaped and the lower part cylindrical, into which the plant material (6, 7), with its plug (7) of earth, is inserted by known methods.  The plug of earth is positioned in the cylindrical part (5), while the part of the plant above the ground (6) fits into the upwardly-opening cone-shaped part (4).  Another part consists of an insufflation head (2) that is equipped with a sealing joint (3) and fitted onto the positioning element (1), and through which air or a gas can be injected into the positioning element when the entire device is positioned above a hole previously made in a receiving element in which the young plant is to be placed.  Its purpose is to facilitate and automate the positioning of plants of all kinds, while conserving their integrity through the use of non-mechanical methods of manipulation.
Patent CA-2058448-C (CA)
Title: Lubricant composition
Inventor: CHIDDICK KELVIN SPENCER
IPC: C10M169/04
Filed: 1990-06-06
Granted: 1999-08-03
Abstract: A novel lubricant composition which processes high and positive friction charact eristics and comprises (a) at least 20% by weight of a polymer medium; (b) at least 5% by weight of a solid lubricant: and (c) at least 5% by weight of a powderized solid mineral friction modifier.
Patent CA-2060610-C (CA)
Title: Waterproof device for holding explosives in a borehole and method for using the same
Inventor: JENKINS SANFORD SWINDELL JR
IPC: F42B3/087
Filed: 1992-02-04
Granted: 1996-10-22
Abstract: A waterproof device for holding explosives in a borehole is disclosed.  The device comprises an elongated, flexible, waterproof liner having first and second ends, the liner being capable of holding explosives within a borehole.      The first end has an aperture through which explosives can be loaded into the liner and the second end is closed and has sufficient structural strength whereby the liner can be disposed within and along at least a portion of a borehole by locating the device at or at least partially within the entrance of the borehole and exerting force against the second end by urging means disposed at least partly within the liner, without rupturing the second end.
Patent CA-2062597-C (CA)
Title: Auxiliary means for fastening a capping on bone tissue or the like
Inventor: BUSER DANIEL
IPC: A61B17/56
Filed: 1992-03-10
Granted: 1999-08-31
Abstract: A means for fastening a capping on bone tissue or the like over an area of original, locally depressed, chipped or fractured tissue to promote the growth of additional tissue is disclosed, comprising generally, a pin which has, at one end, a bead for attachment of a foil and, at the other end, an external thread for threading into the original tissue or bone. Between the bead and the thread is a smooth-walled segment whose diameter is preferably larger than the diameter of the external thread.
Patent CA-2067614-C (CA)
Title: Agent for improving dementia
Inventor: OTOMO EIICHI
IPC: A61K31/4015
Filed: 1992-04-29
Granted: 2002-07-30
Abstract: The present invention aims at providing a drug which is highly effective in improving decline of mental functions such as disorientation, which are the major symptoms of dementia such as Alzheimer type dementia or cerebrovascular dementia, as well as general side symptoms such as decreased spontaneity, contact disturbances, motivation, emotional disturbances, abnormal behaviors and disturbances in activity of daily living.        The agent for improving dementia of the present invention comprises N-(2,6-dimethylphenyl)-2-(2-oxo-1-pyrrolidinyl)acetamide or a salt thereof as an active ingredient.
Patent CA-2069559-C (CA)
Title: Shaft wall and horizontal metal stud therefor
Inventor: MENCHETTI ROBERT J
IPC: E04F13/08
Filed: 1992-05-26
Granted: 1998-04-28
Abstract: A hollow shaft wall with horizontal studs held between vertical corner posts, with acutely angled webs forming a channel with the stud inner flanges, and bevelled edge core boards held by one edge in the angled channel and the other edge held by suitable means on an adjacent horizontal stud.
Patent CA-2083023-C (CA)
Inventor: KOMMA OTTMAR
IPC: C03C8/24
Filed: 1992-11-16
Granted: 2002-07-16
Abstract: A dental ceramic material for the preparation and repair of metal ceramic and fully ceramic dentures, which has a processing temperature of 660 ~ 30°C, possessing the following composition: 60 to 65% by weight of SiO2 8.5 to 11% by weight of Al2O3 8 to 12% by weight of K2O 10.5 to 12% by weight of Na2O 0.7 to 2% by weight of CaO 0.6 to 2% by weight of BaO 0.5 to 2.5% by weight of B2O3 0.1 to 0.6% by weight of Sb2O3 0 to 0.5% by weight of CeO2 1.2 to 3.8% by weight of TiO2 0.8 to 1.4% by weight of Li2O 1.2 to 3.8% by weight of F2.
Patent CA-2089568-C (CA)
Inventor: HAYES THOMAS H
IPC: B65D55/08
Filed: 1991-07-31
Granted: 1995-04-18
Abstract: Fermeture (11) pour contenant (10), munie d'une bande inviolable (22) pourvue d'un dispositif de fixation (29) sous la forme d'une bande ou d'un anneau perforé, uni de manière articulée à la partie inférieure (30) de la bande inviolable. Une série de fenêtres ouvertes (36) ou de cloisons minces (36A) intégrées, formées dans le dispositif de fixation, s'étendent, sans l'atteindre, vers l'extrémité distale (32) du dispositif. Lorsque le dispositif est retourné pour passer de sa position moulée à sa position d'utilisation, ses extrémités distales et/ou ses bords extérieurs sont déformés afin de libérer la pression, ce qui permet de l'inverser par une poussée directe vers le bas. En raison de la déformation, le dispositif de retenue, dans sa position d'utilisation, peut, en fonction de la quantité et de la dimension des fenêtres ou des cloisons, avoir une forme périphérique polygonale avantageuse plutôt qu'une forme circulaire.
Patent CA-2103237-C (CA)
Title: Removable implantable device
Inventor: CZAR CARL T
IPC: A61B5/02
Filed: 1992-06-02
Granted: 2003-06-10
Abstract: A removable implanted device (10) is provided which monitors the blood flow in a vessel (22) and can be removed through the insertion wound (20) without additional surgery. The device has an elongated probe body (12) which contains a Doppler-type ultrasonic transducer (40) attached to the probe body at an angle so as to enable monitoring of blood flow when attached to the vessel (22). The device has a flexible tube (18) which extends out of the body through the insertion wound (20). The device is held in place against the vessel (22) by sutures (38) which are secured to the probe body (12) by a suture attachment wire (24, 26) which may be bent or looped to form two substantially equal lengths (24, 26).  Alternate embodiments use a release wire (62) or a balloon (70) to secure the sutures (38) to the probe body (12).
Patent CA-2109835-C (CA)
Inventor: VINAL ALBERT W
IPC: G11C11/419
Filed: 1992-05-28
Granted: 1998-12-22
Abstract: Circuit d'inversion à verrouillage différentiel utilisant une paire d'inverseurs à couplage croisé ayant une fonction oblique de transfert de tension pour détecter rapidement un signal différentiel sur une paire de lignes de bits dans une mémoire à accès sélectif et fournir une détection à haute vitesse durant une opération de lecture.  Le circuit d'inversion peut également comprendre une paire d'inverseurs symétriques de sortie de fonction de transfert et des circuits supplémentaires de rappel à la source afin d'améliorer le fonctionnement à haute vitesse.  Le circuit peut être utilisé dans une architecture de mémoire ayant des lignes de bits primaires et des lignes de bits de signaux, un circuit d'inversion à verrouillage différentiel pouvant être raccordé à chaque paire de lignes de bits de signaux.  Les lignes primaires et les lignes de signaux sont couplées les unes aux autres pendant les opérations de lecture écriture et découplées dans les autres cas.  Les opérations de lecture-écriture peuvent être régies par synchronisation interne sans la nécessité de signaux d'horloge externes en réponse à un système de détection à haute vitesse de changements d'adresses, et par des signaux de synchronisation internes générés par des tampons de segments de boucle à retard.  On peut ainsi fournir une mémoire à accès sélectif à haute vitesse et de faible consommation d'énergie.
Patent CA-2110326-C (CA)
Title: Refrigerant gas leak detector
Inventor: MARTELL DENNIS
IPC: G01N27/70
Filed: 1993-11-30
Granted: 2004-06-29
Abstract: A refrigerant gas leak detector for detecting the location of leaks of refrigerant gas such as halogen has a sensing tip with a pair of electrodes across which a relatively high voltage is generated to cause a corona current to pass through the electrodes. The voltage applied across the electrodes is varied to maintain the corona current through the electrodes at a substantially constant magnitude. The leak detector includes a gas sensing circuit that detects changes in the concentration of refrigerant gas by sensing the voltage applied to the electrodes. The sensitivity of the gas sensing circuit is automatically varied based on the concentration of refrigerant gas present. The leak detector includes a signal generating circuit that causes a number of audible and visual indications to be generated based on the concentration of refrigerant gas sensed as well as other operating conditions. The leak detector also has a circuit for detecting the presence of an abnormal operating condition, which is assumed to occur when the corona current falls below its substantially constant magnitude.
Patent CA-2110619-C (CA)
Inventor: NIX EDGAR
IPC: H05B7/11
Filed: 1993-12-03
Granted: 1998-10-20
Abstract: A direct current arc furnace is described with a cathodic electrode held in the centre of the melting vessel and an anodic bottom electrode arrangement in the vicinity of an electrically conductive lower vessel from the vessel wall to the melt. The current supply and removal takes place on one side via leads to a rectifier power supply set up in spaced manner alongside the furnace. The lower vessel is connected in several quadrants with leads and in the vicinity of each quadrant a connecting plate is provided on the furnace wall. Close below the arc the power supplies are led in a horizontal plane to the furnace wall. The current intensity for the quadrants of the lower vessel adjacent to the rectifier power supplies is lower than that of the power supplies to the remaining quadrants. The spacings of the connecting plates for the quadrant areas can be unequal.
Patent CA-2110921-C (CA)
Title: Hemostatic bi-polar electrosurgical cutting apparatus and method
Inventor: EGGERS PHILIP E
IPC: G02B6/00
Filed: 1992-06-05
Granted: 2002-04-30
Abstract: A surgical instrument (10) is described that incorporates bipolar electrodes on opposing shear-ing members (20, 30) for passing a high frequency current through the tissue for causing hemostasis of the tissue and for cutting the tissue. An electrically insulating material is interposed between the shear-ing members so that the electrodes are spaced apart from 0.002 to 0.050 inches and the current passes between the opposing electrodes through the tissue and not between the opposing shearing surfaces (21, 31). The insulating material has a higher hardness than the opposing members to reduce wear of the insulation and provide a self-sharpen-ing feature. Methods of simultaneously causing tis-sue and severing tissue are also provided. The use of a constant voltage high frequency power supply (110) to deliver current to the tissue to cause hemos-tasis is described in conjunction with those meth-ods.
Patent CA-2111349-C (CA)
Inventor: SAITO YUICHI
IPC: B60C1/00
Filed: 1993-12-13
Granted: 2003-05-06
Abstract: A radial tire having a radial tire construction wherein, for example, the cap tread has a tan .delta. peak temperature of not less than -30° C.  Base tread comprises not less than 30 parts of a carbon black having an iodine adsorption number of 30 to 90 mg/g and not less than 10 parts of a short fiber oriented in the axial direction. Side wall comprises not more than 30 parts of the carbon black and not less than 10 parts by weight of the short fiber oriented in the peripheral direction. Bead apex comprises not less than 65 parts by weight of a carbon black which has an iodine adsorption number of 60 to 100 mg/g and not less than 20 parts by weight of the short fiber oriented in the axial direction or a direction which crosses the axial direction. This radial tire is light and has a low energy loss, and can provide an excellent steering stability.
Patent CA-2112683-C (CA)
Title: Vacuum filter assembly
Inventor: KRAUS MENAHEM A
IPC: B01D29/00
Filed: 1992-04-02
Granted: 1999-01-12
Abstract: A vacuum filter assembly for filtering a feed liquid includes a filter body or membrane (20) held in a cover (10) attachable to a filtrate container (8). The cover is formed with a feed liquid nipple (14) on one side or the filter membrane, a filtrate outlet tube (24) on the other side of the filter body, and a vacuum port (28). A portion of the surface of the membrane is non-wettable by the reed liquid to facilitate restarting the filtration is the filtration is interrupted. Also, the vacuum port includes a vacuum tube (26), covered at its end by a porous body (30) having pores permeable by air but not by the filtrate, for fixing the maximum level or the filtrate within the filtrate container.
Patent CA-2113286-C (CA)
Inventor: THUEN TORBJORN
IPC: B60R21/20
Filed: 1994-01-12
Granted: 1997-10-07
Abstract: An air bag system designed for mounting on a steering wheel or other member of a motor vehicle passenger compartment includes an air bag assembly, an open housing for the same and a cover. The air bag assembly while separated from its housing is disarmed to prevent accidental deployment. The air bag is armed during its installation in the housing. The housing and assembly are constructed so that the cover cannot be installed if the air bag assembly is missing or it has been installed improperly so that it is not armed. When the air bag assembly is removed from the housing, it is automatically disarmed.
Patent CA-2113928-C (CA)
Inventor: OZAWA KAZUNORI
IPC: G10L19/08
Filed: 1994-01-21
Granted: 1998-08-18
Abstract: A voice coder system is capable of coding at low bit rates under 4.8 kb/s with high speech quality.  Speech signals are divided into frames, and further divided into subframes. A  spectral  parameter  calculator  part  calculates  spectral parameters representing spectral features of the speech signals in at least one subframe, and a spectral parameter quantization part quantizes the spectral parameters of at least one subframe preselected by using a plurality of stages of quantization code books  to  obtain  quantized  spectral  parameters.    A  mode classifier part classifies the speech signals in the frame into a plurality of modes by calculating predetermined amounts of the speech signal features, and a weighting part weights perceptual weights to the speech signals by using the spectral parameters obtained in the spectral parameter calculator part to obtain weighted signals.   An adaptive code book part obtains pitch parameters representing pitch periods of the speech signals in a predetermined mode by using the mode classification in the mode classifier part, the spectral parameters obtained in the spectral parameter calculator part,  the quantized spectral parameters obtained in the spectral parameter quantization part, and the weighted signals;  an excitation quantization part searches a plurality of stages of excitation code books and a gain code book by using the spectral parameters, the quantized spectral  parameters,  the  weighted  signals  and  the  pitch parameters to obtain quantized excitation signals of the speech signals.