baber/WOPTO huggingface dataset:
Patent CA-2125794-A1 (CA)
Title: Rotor construction in an asynchronous electric machine
Inventor: LINDGREN OLLI
IPC: H02K17/16
Filed: 1994-06-14
Abstract: ABSTRACT   A rotor construction in an asynchronous electric machine has an electrical conductor construction substantially adjacent to the stator associated with a rotor shaft. A coating layer of ferromagnetic particulate matter of electric conductivity lower than that of the conductor construction and substantially associated with the conductor construction is placed on the surface of the rotor shaft.
Patent CA-2126254-A1 (CA)
Inventor: COOK BRIAN G
IPC: C25B11/03
Filed: 1994-06-20
Abstract: A process for treatment of a fluid in need of treatment. The process comprising the steps of: (i) feeding the fluid in need of treatment to a fluid treatment chamber having a fluid inlet and a fluid outlet; (ii) passing the fluid in need of treatment through the fluid inlet into the treatment chamber; (iii) forcing the fluid in need of treatment through at least one fluid permeable electrolytic cell disposed substantially transverse to flow of the fluid, the electrolytic cell comprising a channel defined by an outer, perforated first electrode and an inner, coaxially disposed second electrode; (iv) subjecting thefluid in need of treatment to electrolysis as it passes through the channel; (v)forcing the fluid to the fluid outlet; and (vi) allowing the fluid to exit the fluid outlet. The invention also provides a fluid treatment apparatus comprising a housing including a fluid inlet, a fluid outlet and at least one fluid permeableelectrolytic cell disposed therebetween such that the flow of fluid from the fluid inlet to the fluid outlet is substantially transverse to the at least electrolytic cell, the at least one electrolytic cell comprising a channel defined by an outer, perforated first electrode and an inner, coaxially disposed second electrode. Ideally the process and apparatus are suited for treatment of water containing pollutants to effect a substantial reduction in the concentration of the pollutants.
Patent CA-2127795-A1 (CA)
Title: Surgical retractor and surgical method
Inventor: POLOYKO ALEXANDER
IPC: A61B17/00
Filed: 1993-02-24
Abstract: A surgical retractor (10) having a plurality of widenable and narrowable blades (24, 26, 28) of substantial width, having tissue-contacting surfaces that are not significantly narrower, in a collapsed position, than a guide tube (13) for guiding the retractor blades through a surgical access port to a surgical site during a minimally invasive surgical procedure. Each retractor blade (24, 26, 28) includes a relatively large, preferably planar, tissue-cntacting surface for displacing or repositioning internal body tissue, such as an internal organ, for temporary displacement away from the surgical site. After insertion through a surgical access port one or more of the retractor blades (24, 26, 28) can be widened laterally to substantially space distal ends (56, 58, 60) of the retractor blades apart for maximum contact against and over a substantial area of the tissue to be displaced during the surgical procedure. After completion of the operative procedure, the retractor blades (24, 26, 28) can be narrowed by nesting the blades together and the retractor (10) can be easily and safely withdrawn from the access port.
Patent CA-2131443-A1 (CA)
Title: Method and apparatus for heating building and ventilation air
Inventor: LESKINEN SEPPO
IPC: F24D10/00
Filed: 1993-03-10
Abstract: This invention relates to a method for heating room space of a building. According to the method, heat is conveyed from district heating water to a heating liquid of heating circuits (6, 7) for heating the building, tap water and supply air (A) of ventilation.  According to the invention, the heating circuits (6, 7) for heating the building and the supply air are connected in series in such a manner that the heating liquid flowing in piping (5) heats, after passing a heat exchanger (4), first the heating circuit (6) for heating the building and thereafter the heating circuit (7) for heating the supply air (A). On account of the invention, the temperature of the district heating return water is lower than in the known apparatuses.
Patent CA-2139056-A1 (CA)
Title: Humidifier
Inventor: HAMASKI SADAKATSU
IPC: F24F6/04
Filed: 1994-12-23
Abstract: Humidifying apparatus is provided which includes a hollow, envelope-like base made of a porous polymeric material, which material  is  both  water  vapor  permeable  and  liquid-water-impermeable.  The base component is superposed with an adjacent, corrugation-like,  void  forming  sheet  of  material  to form  a composite structure which is wound to a spiral configuration.  The envelope base component and the corrugated void forming sheet are affixed together by means of a filament wound about their external periphery.  The apparatus includes means for supplying liquid water into the hollow base envelope and supplying dry air into and through the voids of the void forming sheet, whereby humidification of the dry air passing therethrough is effected.   The envelope component   is    preferably    made    of    porous,    expanded polytetrafluoroethylene.
Patent CA-2139748-A1 (CA)
Title: Gaming machine
Inventor: FUCHS ANTON
IPC: G07F17/34
Filed: 1993-07-09
Abstract: The invention concerns a gaming machine with at least one display area (2) for a number of game symbols (3) which, after the player has pressed a start button (4) to start the game, are se-lected under the control of a computing unit (5) from a multitude of predetermined symbols and presented at positions in the display area (2) for the player to view. The invention calls for the gaming machine (1) to have, preferably in the display area (2), at least one chance-display zone (7, 7') in which the computing unit (5), optionally on actuation of a request unit (14), e.g. a request button, by the player, displays possible and/or increased and/or best-possible win chances, and/ or instructions for determining them, which are available for the next game or which, on removal of one or more of the game symbols or game-symbol combinations presented for the next game, apply or could possibly be achieved in the next game.
Patent CA-2142541-A1 (CA)
Inventor: EDSTROM ANDREW
IPC: A47C7/46
Filed: 1995-02-15
Abstract: An omnidirectional tilting mechanism comprising a low profile package interposable between a support and a tiltable member. The mechanism includes a first element secured to the support and a second element secured to the tiltable member. The first and second elements move relative to one another in an omnidirectional manner about a pivot element centrally disposed relative to the first and second elements. The resistence to tilting is controlled by flexural elements interconnecting the first and second elements which act to return the first and second elements to a neutral, home position.
Patent CA-2143900-A1 (CA)
Title: Scanner mechanism for use in differential optical absorption spectroscopy (doas)
Inventor: ROBBINS JOHN
IPC: G01J3/04
Filed: 1995-03-03
Abstract: An apparatus for use in Differential Optical Absorption Spectroscopy (DOAS) or in other optical apparatus provides a moveable or oscillating aperture. It has a sensor for detecting the position of the aperture, and a drive for oscillating the aperture; the drive and sensor can comprise coils forming a linear variable differential transformer, and the aperture can be spring biased to a neutral position. A control circuit is connected between the coil or other sensor and the drive coils, so that the motion of the aperture follows a desired profile. This enables significant parts of the apertures motion to be constrained to be linear. The aperture can be provided in a shuttle mounted on extension arms, whose ends are connected to resilient biassing means which serve both to support the shuttle and to bias it. More preferably, extension arms extend through pole pieces of magnets, which provide a magnetic field for drive coils. Another aspect of the invention provides a telescope apparatus, for a DOAS technique, including a baffle moveable between calibration and operational positions. This enables light from the light source to be transmitted either for measurement or for calibration allowing for changes in lamp output, etc.
Patent CA-2145210-A1 (CA)
Title: Miter saw with switched reluctance motor
Inventor: BETH DAVID E
IPC: B23D47/12
Filed: 1995-03-21
Abstract: A miter saw with switched reluctance motor is disclosed. The miter saw includes a supporting frame with a turntable horizontally rotatably mounted on the supporting frame for selective miter adjustment. A rotatably mounted saw blade is pivotally mounted on the turntable for movement between an upper at rest and a lower operational position. A switched reluctance motor is connected to the saw blade for rotatable powered operation about its rotatable mounting. Motor drive electronic means are utilized for controlling the operation of the switched reluctance motor.
Patent CA-2147606-A1 (CA)
Inventor: KWAN HENRY K
IPC: A61K31/137
Filed: 1993-10-21
Abstract: A film-coated extended release oral dosage composition containing the nasal decongestant pseudoephedrine or salt there-of, e.g., pseudoephedrine sulfate in a unique polymer matrix core and a film-coating on such core containing the non-sedating antihistamine, loratadine, and use of the said composition for treating patients showing the signs and symptoms associated with upper respiratory diseases and nasal congestion are disclosed.
Patent CA-2149086-A1 (CA)
Title: Passification of optically variable pigment and waterborne coating composition containing the same
Inventor: HALL JOHN
IPC: C09D5/28
Filed: 1995-05-10
Abstract: The present invention is a composition comprising an optically variable pigment modified with a silane functional compound and a copolymer which is a polymeric backbone having a reactive functionality thereon to react with the silane functional compound.  The invention also includes a process for treating the optically variable pigment, and a coating composition containing the treated optically variable pigment.
Patent CA-2149485-A1 (CA)
Inventor: LEFROU CHRISTINE
IPC: G02F1/155
Filed: 1995-05-16
Abstract: L'invention concerne des systèmes électrochromes (1) comportant un matériau dontl'état de coloration et/ou la transmission dans certaines longueurs d'onde de rayonnement électromagnétique varie par la mise en jeu d'une réaction électrochimique impliquant le passage d'un courant électrique. Selon l'invention, ledit courant électrique est généré par un générateur d'intensité (8) apte à délivrer un courant dont l'intensité obéit à une valeur de consigne déterminée en fonction du nombre de charges à transférer pour commuter de l'état initial à l'état voulu et en fonction de la durée choisie pour la commutation. L'invention a également pour objet le procédé évoqué plus haut d'alimentation électrique d'un vitrage électrochrome.
Patent CA-2149488-A1 (CA)
Title: Electrodes pour dispositif piezoelectrique
Inventor: BOISRAYON MICHEL
IPC: H01L41/047
Filed: 1995-05-16
Abstract: Dispositif piézo-électrique comprenant au moins un couple d'électrodes et un matériau piézo-électrique séparant les électrodes. Chacune des électrodes comporte une plaque transversale et l'une de ces électrodes comportent n plaques longitudinales solidaires de la plaque et formant un angle .alpha. avec cette dernière, l'autre en comportant n+1 (211 à 21n+1), n étant au moins égal à 1, l'agencement des plaques longitudinales étant tel que les plaques (111 à 11n) s'imbriquent entre les plaques (211 à 21n+1).
Patent CA-2150056-A1 (CA)
Title: Measurement Cell for Water Vapor Sensor
Inventor: MAYER WILLIAM N
IPC: G01N9/00
Filed: 1995-05-24
Abstract: An absorption cell of the type used to measure gas concentrations by pressure fluctuations of the concentrated gas in an IR radiation field, wherein the IR radiation through the field is affected by the pressurized gas fluctuations to thereby provide an electrical measurement of gas concentration. The sensitivity, linearity and accuracy of the measured gas concentration is improved by controlling the surface roughness of the interior walls of the measurement cell; the wall roughness is preferably controlled to between 15 and 70 microinches.
Patent CA-2151946-A1 (CA)
Title: Process for the broadcasting of conditional access programmes permitting a progressive access to such programmes
Inventor: GUILLOU LOUIS
IPC: H04N7/167
Filed: 1993-12-28
Abstract: Process for the broadcasting of conditional access programmes permitting a progressive access and process for the progressive access to such programmes.            According to the invention transmission takes place of partial access checking messages, which can permit the descrambling and partial restoration of the programme for receivers having a partial access right.            Application to the broadcasting of television pictures, radio programmes, sound and data.            (No drawing)
Patent CA-2152936-A1 (CA)
Inventor: YASUHARA TAKASHI
IPC: C07C17/16
Filed: 1993-12-24
Abstract: There is provided a method of producing 1,1,2,2, 3-pentafluoropropane by reacting 1-chloro-2,2,3, 3-tetra-fluoropropane with hydrogen fluoride in the presence of fluorinated catalyst. By this method, 1,1,2,2, 3-pentafluoro-propane can be obtained industrially and economically at high yield.
Patent CA-2159884-A1 (CA)
Title: Low pressure drop, turbulent mixing zone dry scrubber
Inventor: MYERS ROBERT BRUCE
IPC: B01D53/50
Filed: 1995-10-04
Abstract: Contaminants such as sulfur oxides are removed from flue gas in a low pressure drop, turbulent mixing zone, vertical dry scrubber by channeling the flue gas through a low pressure drop gas distribution means which controls flue gas introduction to the scrubber, along with control of reagent introduction, by treating the flue gas with a finely atomized alkali solution or slurry reagent preferably from a single or multiple array of dual-fluid atomizers.  The atomizers create a turbulent mixing zone downstream of the gas distribution means which results in a homogeneous distribution of the alkali solution or slurry reagent  in the  flue gas.   Control means are provided for creating  and  maintaining  the  turbulent  mixing  zone.    A transition at the bottom of the dry scrubber is used to entrain any particulates and/or spray dried materials in the bulk gas stream exiting the dry scrubber.
Patent CA-2160604-A1 (CA)
Title: Biodegradable oligoesters suitable as lubricants
Inventor: HOPPE DIRK
IPC: C07C69/50
Filed: 1995-10-16
Abstract: New oligoesters made from a tricyclic diol with 8 to 20 carbon atoms, a dicarboxylic acid with 4 to 20 carbon atoms, and an aliphatic alcohol with 1 to 30 carbon atoms are useful as lubricants, hydraulic oils and compressor oils for mobile field use in forestry and agriculture, in construction, in mining and in transport.  The oligoesters have a kinematic viscosity of 50 to 50,000 mm/s at 40°C and are biodegradable.
Patent CA-2161234-A1 (CA)
Inventor: ROBINSON JEAN
IPC: B65G15/34
Filed: 1994-06-22
Abstract: Une bande de transporteur ou élément analogue comprend une carcasse tissée solide imprégnée et revêtue de caoutchouc. Les fils de chaîne (12, 13) sont composés de filaments de polyester doublés de fils de polyester texturés. Lorsque la carcasse tissée solide est tissée sous forme d'une structure à au moins quatre plis, les fils de chaîne internes (13) suivent une trajectoire plus droite que les deux fils de chaîne externes (12), de sorte que ces derniers (12) produisent des "poches" à la surface de la carcasse.
Patent CA-2162310-A1 (CA)
Inventor: DAVIS PAUL COOPER
IPC: H04B1/04
Filed: 1995-11-07
Abstract: The present invention provides an RF transmitter network for cellular telephone systems.  The network includes power amplifier circuitry which coupled to a closed loop control system to provide a controllable RF amplitude envelope for the output power of the amplifier circuitry over a dynamic range of between about 5 milliwatts and about 3200 milliwatts.
Patent CA-2164765-A1 (CA)
Inventor: CHAO MING HUI
IPC: A47L19/00
Filed: 1995-12-08
Abstract: A dish drier including a housing having an inner vertical wall, an outer vertical wall, the inner vertical wall being provided with a plurality of rails, a plurality of racks supported on the rails, a groove formed between the inner vertical wall and the outer vertical wall, two doors slidably fitted in the groove, a recess formed at a lower portion, and a receptacle received in the recess, a container mounted on a top of the housing, a steam generator installed in the container, a hot air blower arranged in the container, a first inverted U-shaped member mounted on an inner vertical wall of the housing, having a plurality of perforations, and connected with the steam generator, and a second inverted U-shaped member mounted on an inner vertical wall of the housing, having a plurality of perforations, and connected with the hot air blower.
Patent CA-2167890-A1 (CA)
Inventor: KVANT MAGNUS
IPC: C01F7/16
Filed: 1996-01-23
Abstract: The present invention relates to a process for the preparation of solutions of aluminum salts, characterized in that an aluminate of an alkali metal and/or alkaline earth metal is dissolved in an acid solution to the formation of a solution which is used as such or is diluted to a suitable concentration.
Patent CA-2169257-A1 (CA)
Inventor: PATNO TIMOTHY J
IPC: F04B43/00
Filed: 1995-01-09
Abstract: A peristaltic pumping apparatus and associated method control power to the pump rotor to establish, during a preestablished first time period, a selected first angular velocity and sequentially establishing during a preestablished second time period immediately following the first time period a second angular velocity different than the first angular velocity. In this fashion, the apparatus and method achieve flow rates well below the minimum continuous rate of the rotor.
Patent CA-2170044-A1 (CA)
Title: Appliance for introducing sealing compound into lug caps, process for introducing sealing compound into lug caps, and use of the appliance for injecting sealing compound into lug caps
Inventor: HAMMEN ERWIN
IPC: B65D53/06
Filed: 1994-08-11
Abstract: The present invention relates to an appliance for introducing sealing compound into lug caps, the appliance containing a turntable for accommodating the cap, and an injection unit, the injection unit containing a nozzle block, which has annularly arranged injection nozzles, and a delivery device for the sealing compound, the turntable and the nozzle block being arranged so as to be centered and the nozzle block being rotatable in the same direction as the turntable. The invention also relates to a process for introducing sealing compound into lug caps and to the use of the appliance for injecting sealing compound into lug caps.
Patent CA-2172627-A1 (CA)
Inventor: BUDDE PETER
IPC: E21B21/10
Filed: 1995-03-15
Abstract: Une vanne de remplissage (102) comprend un boîtier tubulaire (105) renfermant un élément (109) de vanne poussé en position fermée par un ressort léger (112). L'élément (109) de vanne comporte une tête (110) et une partie tubulaire (111A) dotée de grandes fenêtres (111B, 111C). Quand la vanne de remplissage est ouverte, le ciment s'écoule librement par la tige (111) de la vanne (102) et hors des fenêtres (111B, 111C).
Patent CA-2173518-A1 (CA)
Inventor: CASTLE T KEVIN
IPC: B01D53/26
Filed: 1996-04-04
Abstract: A check valve mechanism is disclosed for a twin tower gas drying system.   The drying system filters unpurified gas to supply purified gas to a pneumatic system.  The purified gas is supplied alternately from each tower to the mechanism for distribution in an output percentage to the pneumatic system and in a purge percentage to the drying system for purging moisture previously collected.  The mechanism includes a valve body and a shuttle choke.  The body defines first and second channels  connected  to  the   first  and  second  towers, respectively;  a shuttle tube having first and second ends connected to the first and second channels, respectively; and an output passage having an initial end communicating with the pneumatic system and a terminal end communicable with the tube.          The choke defines an orifice and slides between the ends.  When purified gas flows from the first tower, the choke slides to the second end.   Purified gas flows from the first tower through the first channel through the output passage in the output percentage to the pneumatic system and through the orifice in the purge percentage through the second channel for purging via the second tower.  When purified gas flows from the second tower, the choke slides to the first end.  Purified gas flows from the second tower through the second channel through the output passage in the output percentage to the pneumatic system and through the orifice in the purge percentage through the first channel for purging via the first tower.
Patent CA-2173936-A1 (CA)
Title: Electronic Price Label Support Method
Inventor: GOODWIN JOHN C III
IPC: G06Q20/20
Filed: 1996-04-11
Abstract: An electronic price label (EPL) support method in which support of an EPL system may be provided by a main computer in a store, a host computer coupled to the main computer and other main computers in a chain of stores, or a combination of both.          The support method includes a method of modifying an EPL system within a transaction establishment.  The host computer creates a price look-up (PLU) batch file containing changes to a PLU data file of the store and sends it to the main computer.  The main computer applies the PLU batch file.  Either the host or main computer provides an EPL batch file for modifying an EPL data file in response to the changes in the PLU data file.  When provided by the host, the EPL batch file may contain temporary identification numbers for new EPLs.  Either the host or main computer may additionally provide overlays for new EPLs, reassigned EPLs, and replacement EPLs.
Patent CA-2174074-A1 (CA)
Inventor: CREPEL BRUNO
IPC: H01F7/20
Filed: 1996-04-12
Abstract: L'invention concerne une bobine comprenant un mandrin (1) creux sur lequel est réalisé un bobinage d'une pluralité de conducteurs (8) de même longueur, et des moyens de connexion entre les conducteurs (8) et une source d'alimentation électrique de la bobine, selon l'invention les conducteurs (8) sont isolés, parallèles et décalés angulairement, enroulés ensemble sur ledit mandrin (1) chaque conducteur (8) formant des spires en spirales empilées et imbriquées avec les spires en spirales des autres conducteurs (8), lesdits conducteurs (8) formant un premier (7a) et un deuxième (7b) enroulements de même axe d'enroulement (3), l'une des extrémités libres de chaque conducteur (8) étant accessible sur le périmètre extérieur (21a) du premier enroulement (7a), l'autre extrémité libre du conducteur (8) étant accessible sur le périmètre extérieur (21b) du deuxième enroulement (7b).
Patent CA-2175376-A1 (CA)
Inventor: KEMP JOHN L
IPC: H01B7/18
Filed: 1994-10-31
Abstract: L'invention concerne un câble isolé associant une bonne rotondité et une bonne aptitude au dénudage, qui comprend au moins deux conducteurs isolés individuellement, un revêtement intérieur en ruban polymère enroulé autour des conducteurs et une gaine extérieure en matériau polymère isolant, extrudé à chaud autour du revêtement intérieur. Le degré d'adhérence entre le revêtement intérieur et les conducteurs est inférieur au degré d'adhérence entre le revêtement intérieur et la gaine extérieure. Le câble isolé s'utilise notamment dans les systèmes de freinage antiblocage. L'invention concerne en outre un procédé de production dudit câble.