baber/WOPTO huggingface dataset:
Patent CA-2171109-A1 (CA)
Inventor: RAM ZVI
IPC: A61K35/76
Filed: 1994-09-28
Abstract: Un procédé permet de traiter un trouble du système nerveux chez un sujet chordé (mammifère de préférence). Il consiste à administrer dans le liquide céphalo-rachidien du sujet un vecteur d'expression pouvant transduire une cellule pour exprimer un agent thérapeutique dans le système nerveux. Ce vecteur d'expression comporte une séquence d'acide nucléique codant un agent thérapeutique destiné à traiter un trouble du système nerveux et on l'administre en quantité efficace à cette fin. Le procédé inventé s'applique particulièrement au traitement de la carcinomatose méningée et les cellules productrices, qui contiennent un vecteur rétroviral comportant un gène qui code un marqueur sélectif négatif (tel que la thymidine kinase de l'Herpes simplex), sont administrées dans le liquide céphalo-rachidien du patient. Ces cellules productrices donnent des particules virales qui transduisent les cellules de la carcinomatose méningée, qui, une fois transduites, sont alors tuées par l'administration d'un agent d'interaction (le ganciclovir par exemple) qui interagit avec le marqueur sélectif négatif.
Patent CA-2171162-A1 (CA)
Title: Coke oven door seal
Inventor: MICHLER AUGUST E
IPC: C10B25/16
Filed: 1996-03-06
Abstract: A coke-oven door seal and sealing system wherein the coke-oven door seal comprises a sealing arm in angular relation with a door jamb surface, said sealing arm being engagable with said door jamb surface at a knife edge, and said sealing arm protruding beyond said knife edge and away from said door jamb surface creating a reinforcing and ventilating rib for cooling said knife edge which is capable of supporting a secondary sealing means.  The sealing system of the present invention comprises a coke-oven door seal, including a sealing arm in angular relation with a door jamb surface, said sealing arm protruding beyond the knife edge at which said sealing arm engages said door jamb surface and a pivotable plunger system which comprises a standard plunger connected to a plunger extension which consists of a pad and a ball joint or other swivel or rocking means.
Patent CA-2175466-A1 (CA)
Title: Process for making goethite
Inventor: LOWN JEAN A
IPC: H01F1/11
Filed: 1994-09-22
Abstract: Spindle-shaped goethite particles are produced by oxidizing a ferrous carbonate intermediate in the presence of a growth modifier, or altenatively by changing the flowrate of oxidizing gas during oxidation. The goethite particles thus produced have a narrow size distribution, high aspect ratio and are substantially dendrite-free. These properties make the inventive goethite particles suitable for use rn preparation of high density magnetic recording media.
Patent CA-2175500-A1 (CA)
Title: Sweet t.d. gloves
Inventor: GRAHAM SEAN CHRISTIAN
IPC: A63B71/14
Filed: 1996-07-09
Abstract: Most athletic gloves (ie. football and baseball gloves) that are designed for their gripping and tactile ability are made of tactified leather on the palm. In this invention, the palm of the Sweet T.D. glove would be made up of vinyl impregnated cotton. The backing of the Sweet T.D. glove would consist of simple nylon mesh to allow for ventilation. The seams will be stitched on the inside of the glove to allow for a more flexible fit. The wrist band of the glove would fasten completely around the entire wrist and would consist of an elastic backing to allow for greater flexibility in the wrist.
Patent CA-2177781-A1 (CA)
Title: Digital pb exchanger with multi-processor control system using asynchronous transfer mode
Inventor: HONMA YOSHIO
IPC: H04L12/70
Filed: 1996-05-30
Abstract: The present invention provides a Digital PB exchanger with a Multi-processor control system by using an ATM for a plurality of Digital PB exchangers with a single processor control system to multiplex PCM voice data and communication data between processors.          The Digital PB exchanger consists of a Processor unit, a Time division switch, a subscriber circuit, a trunk circuit, a telephone terminal and the like. A PCM voice signal and data from the Time division switch 21 are connected to the ATM switch 5 via the ATM interface circuit 31 so that communication of the audio signal can be made possible. Furthermore, when data is transmitted from one processor to another processor, the data from the processor is multiplexed with the audio signal by the ATM interface circuit and is transmitted to other ATM interface circuits.
Patent CA-2178120-A1 (CA)
Title: Electronic ballast for fluorescent lamps
Inventor: VALCKE FRANCISCO JAVIER VELASC
IPC: H05B41/38
Filed: 1996-06-04
Abstract: A transformerless ballast for a gaseous discharge lamp is disclosed. The ballast comprises: a rectifier; a filter for the rectifier output; a voltage divider for the filter output; an electronic gate modulating the filter output to power a lamp when the lamp is lit; a controller controlling the electronic gate responsive to variations in load current and lamp impedance and to variations in the voltage divider output; an oscillator generating an output for predetermined period of time until after the lamp is lit; and an amplifier receiving and amplifying the oscillator output for powering the lamp when the lamp is unlit.
Patent CA-2178525-A1 (CA)
Inventor: SONG JLAN CHENG
IPC: C08J7/054
Filed: 1996-06-07
Abstract: The present  invention  is  directed to an anti-fogging  coating that  can  be  used  for  anti-fog applications.  The coating is transparent, and comprises a  hydroxyl  group  containing  polymer,  an  aluminum containing  crosslinker,  and  a  surface  active  agent containing    hydroxyl    and/or siloxane    groups. Additionally, the coatings possess a Tfog of greater than about 30 minutes and a haze of less than about 5%, and can advantageously be used  to provide  to glass or plastic substrates an anti-fogging surface.
Patent CA-2179250-A1 (CA)
Title: Tree transplanting apparatus
Inventor: BURLETOFF BRIAN
IPC: A01G9/12
Filed: 1996-06-17
Abstract: Trees are container grown using multiple panel tree supports that are readily cut apart and removed in transplanting to minimize transplanting shock on the plant. Two types of support are disclosed. One is a pail-like container with a removable bottom and a side wall that may be split. The bottom of the support is removed by cutting three tabs. After the tree has been located in the transplantation hole, the peripheral wall is opened by cutting a further three tabs so that it can be removed without disrupting the tree roots. The second version of the apparatus has four panels radiating from a common center. This unit is used in conjunction with an outer container. Rope handles joining respective pairs of the panels are used for lifting the support and the tree out of the outer container. When the tree has been located in a hole dug for this purpose, the panels are separated by cutting the web joining them at the center and they are drawn out from under the tree, thus minimizing damage to the tree roots.
Patent CA-2180050-A1 (CA)
Inventor: HARRIS MATTHEW K
IPC: F28F1/32
Filed: 1996-06-27
Abstract: A heat exchanger of the type used for a condenser in a vehicle air conditioning system includes a pair of parallel, tubular headers which are spaced apart with a plurality of refrigerant flow tubes extending between the headers.  The flow tubes have upper and lower flat sides, and forward and rearward outermost edges.   The forward and rearward outermost edges longitudinally extend the length of the flow tubes to define forward  and  rearward  outermost  planes  of  the  flow  tubes, respectively.  A plurality of serpentine fins have alternately disposed ridges and furrows which define upper and lower crests. Intermediate portions of the crests are indented to provide recesses, with tabs extending from opposite ends of the crests. The tabs extend outward and adjacent to the forward and rearward outermost edges of the flow tubes, outward of the forward and rearward outermost planes, and retain the flow tubes within the recesses formed into the intermediate portions of the crests. The headers and serpentine fins are brazing clad for passing through a brazing furnace to braze the headers and serpentine fins to the flow tubes.   The tabs of the fins braze to the outermost edges of the flow tubes, and the intermediate portions of the crests of the fins braze to the upper and lower flat sides of the flow tubes.
Patent CA-2182142-A1 (CA)
Title: Method and Apparatus for Reducing Nox Production During Air-Oxygen-Fuel Combustion
Inventor: BAUKAL CHARLES EDWARD JR
IPC: F23D14/32
Filed: 1996-07-26
Abstract: Method and apparatus for reducing NOX production in an air-oxygen-fuel combustion process by creating post mix oxy-fuel flame and introducing air around said oxy-fuel flame at an angle of greater than 0° to 90° to the longitudinal axis of the oxy-fuel flame.
Patent CA-2182425-A1 (CA)
Inventor: SHERRILL JOSEPH C
IPC: A61L11/00
Filed: 1996-07-31
Abstract: A method is provided for treatment of infectious medical waste. The method in a broad sense comprises washing the infectious medical waste with a liquid to convert the infectious medical waste into noninfectious waste. In accordance with another aspect of the invention, a method is provided which comprises a first step of wetting the infectious medical waste with a first liquid to remove loose particles and materials that are soluble in the first liquid from the infectious medical waste, and a second step of wetting the infectious medical waste with a disinfecting liquid to disinfect the infectious medical waste. The invention according to another aspect includes an apparatus for treatment of infectious medical waste. The apparatus comprises a substantially liquid-tight volume for containing the infectious medical waste. The volume includes a first input means for inputting a first liquid into the volume to wet the infectious medical waste with the first liquid and thereby remove loose particles and materials that are soluble in the first liquid from the infectious medical waste.
Patent CA-2182595-A1 (CA)
Inventor: O'DELL ROBIN D
IPC: B27N3/06
Filed: 1994-12-23
Abstract: A low-pressure board having reduced show-through and reduced resin migration is obtained by interposing a coating (12) between the decor sheet (16) and the substrate (14), e.g. fiberboard, chipboard or particle board, which is preferably microcrystalline cellulose or a mixture of microcrystalline cellulose with CMC at a dry-coating weight of 3.26 to 26.08 g/m2, preferably 6.52 g/m2.
Patent CA-2182818-A1 (CA)
Inventor: RONEN YZHAK
IPC: G06Q20/12
Filed: 1996-08-07
Abstract: Billing for information and/or interactive services provided to a user over the Internet by an information service provider (ISP) is arranged by the user by placing a billing telephone call to a 900 telephone number associated with the ISP for such billing purposes. The cost to the user for the 900 number billing telephone call, which is determined by the ISP, represents the charge for receiving the information and/or interactive services from the ISP, and is billed to the user's telephone number account. The ISP's 900 number account is credited by the telephone company for the call and thus for the information and/or interactive services provided.
Patent CA-2184109-A1 (CA)
Title: Vertical storage conveyor with improved load support and drive system
Inventor: LICHTI ROBERT D
IPC: B60S/
Filed: 1995-01-24
Abstract: A vertical conveyor is disclosed having a frame with a first and second vertical frame section spaced apart but supportingly connected to each other. Load supports having first and second ends are conveyed around a looped path. Each load support is movably mounted at the first and second ends to first and second frame sections. A pickup chain assembly has a pickup drive chain, an upper drive sprocket driven by the motor wherein a substantial amount of the load exerted by the supports against the pickup chain assembly is imported against the upper drive sprocket. An idler sprocket is aligned below the drive sprocket and has a smaller diameter than the drive sprocket. The pickup drive chains include a plurality of pickups pivotally mounted thereto which engage transverse axles mounted at the end of compression links of a compression chain assembly. The load supports are mounted on the compression chain assembly. A motor simultaneously drives the first and second pickup chain assemblies which in turn drive the compression chains and move the supports up and down.
Patent CA-2185512-A1 (CA)
Inventor: SANDS STEVEN B
IPC: A61K31/407
Filed: 1996-09-13
Abstract: Compounds of formula I, <CHEM> and their pharmaceutically acceptable salts, wherein R<1>-R<6> are as defined herein, are useful in the treatment of tinnitus.
Patent CA-2187905-A1 (CA)
Title: Acquisition of video images simultaneously with analog signals
Inventor: RECTOR DAVID M
IPC: G06F19/00
Filed: 1995-04-25
Abstract: A system provides for simultaneous collection, storage and analysis of up to 240 physiological analog signals and video signal samples. The output is a standard composite video signal containing analog and video data. The combined signals can be interleaved and stored in file format on videotape (19), or can be digitized by a frame grabber (18). Circuitry separates horizontal synchronizing pulses from a camera output, and a counter sequentially selects each electrophysiological channel on a sample-and-hold multiplexer. The intensity of each horizontal scan line from the multiplexer (11) output represents the amplitude of one sample of each physiological channel. This signal is then multiplexed with the video signal, such that a portion of each video line represents the physiological data. The combined output is stored together, providing a way for synchronizing the two signals for analysis.
Patent CA-2188199-A1 (CA)
Title: Guidewire assembly
Inventor: FRECHETTE ROBERT
IPC: A61M25/16
Filed: 1996-10-18
Abstract: The guidewire assembly includes a distal tip section comprising a core wire, a mushroom shaped head fixed to a distal end of the core wire, and a coiled radiopaque wire having a distal end portion fused to the head and a proximal necked down portion which necks down to proximal end coils forming a proximal end of the coiled radiopaque wire. The proximal end coils are received on a portion of the core wire and fixed thereto by a flexible material. The method for making a guidewire assembly having increased flexibility and a secure connection between a coiled wire and a core wire comprises the steps of: forming a coiled radiopaque wire with a larger-in-diameter distal portion, a necked down middle portion, and a smaller-in-diameter proximal portion having a plurality of end coils; winding the end coils on a mandrel,so that the end coils can form the proximal end portion of the coiled wire; pushing the end coils onto a tapered portion of a core wire; placing a flexible sleeve over the end coils; heat shrinking the flexible sleeve at one temperature; placing an outer sleeve over the flexible sleeve; and, heat shrinking the outer sleeve at a higher temperature to melt the flexible sleeve causing it to bond onto the tapered portion between the end coils and to the end coils.
Patent CA-2189173-A1 (CA)
Inventor: SANDERS BRIAN V
IPC: F01M13/04
Filed: 1996-10-30
Abstract: An oil separator apparatus for use in an engine ventilation system for allowing air flow alternately into and out of the engine crankcase.  Escape of any significant volumes of oil from the engine crankcase is prevented when air flow is outward therefrom.  A tube within a tube design forms a compact and effective oil separation structure.  The separator subjects the air flow to several directional and velocity changes effective to separate oil from air flow.
Patent CA-2192308-A1 (CA)
Inventor: WILD FRANKLIN J
IPC: B62B5/02
Filed: 1995-06-09
Abstract: Un fauteuil roulant (12) est équipé d'un dispositif (14) qui, en position "marche d'escalier", permet à l'utilisateur du fauteuil roulant (12) de faire tourner les grandes roues (21) du fauteuil roulant (12) en sens inverse, de monter un escalier (70) grâce à une pluralité de pignons (28, 32, 68) munis de chaînes (69). L'utilisateur place l'appareil en position "marche d'escalier" au moyen d'une pompe à air manuelle (62) ou d'une pompe utilisant un autre fluide, montée sur le cadre du fauteuil roulant, afin de pomper un fluide dans des cylindres de commande (48). Ceci provoque l'extension de pistons (86) et de tiges de pistons associées des cylindres (48) actionnés par un fluide et permet de placer le dispositif en position "marche d'escalier". Dans cette position, l'utilisateur peut également descendre un escalier (70) avec son fauteuil roulant. En inversant une soupape (104), l'utilisateur peut pomper le fluide dans les cylindres (48) actionnés par un fluide afin de placer le dispositif en position de rangement, permettant d'utiliser le fauteuil roulant (12) comme un fauteuil roulant normal.
Patent CA-2194519-A1 (CA)
Title: Hockey stick blade pad
Inventor: CARRUTHERS ANDREW D
IPC: A63B53/04
Filed: 1997-01-07
Abstract: A pad for use with a hockey stick having a handle and a blade includes a generally flat pad element capable of covering at least a portion of a side surface of the blade. An adhesive layer securely affixes the pad element to the blade. The pad element is securely affixed to a side surface of the blade such that at least a bottom edge portion of the blade is not covered by the pad element.
Patent CA-2195483-A1 (CA)
Title: Lamp head with protective lens
Inventor: LAVY DANNY
IPC: F21V29/10
Filed: 1997-01-20
Abstract: A lamp head incorporated with an anti-combustion arrangement, which includes an upwardly directed pan and a reflector member disposed internally of the pan.  The reflector member has a planar lip for supporting a reflecting disc and a holding means for electrically receiving a halogen light source.  The reflecting disc has an inner concave reflecting surface positioned below the halogen light source.  A shielding lens is mounted on the planar lip for closely covering the halogen light source wherein a high temperature burning zone is formed above the concave reflecting surface and around the halogen light source.  The anti-combustion arrangement includes a transparent protective shelter and a supporting means.  The protective shelter has a size adapted to entirely cover the halogen light source, the supporting means being disposed on the reflector member for supporting the protective shelter at a predetermined height from the planar lip and right above the halogen light source to cover the high temperature burning zone and to define an air ventilation clearance between the protective shelter and the halogen light source.
Patent CA-2198109-A1 (CA)
Inventor: EBERHARDT JOHN E
IPC: H03F1/30
Filed: 1995-08-18
Abstract: A transceiver (100) includes a radio frequency power amplifier (116) which is biased by an active bias circuit (110). Active bias circuit (110) provides a low cost bias circuit for amplifier (116) which adjusts the bias over changes in temperature and supply voltage levels to provide a constant output power. A  set of control inputs (122-126) coming from controller (108) provide for power output level adjustement for the amplifier (116) in a frequency modulated (FM) environment and for both power and modulation level adjustments in an amplitude modulated (AM) environment.
Patent CA-2198332-A1 (CA)
Inventor: BONERB JAMES J
IPC: B60P3/42
Filed: 1997-02-24
Abstract: A freight container in the form of a tractor-trailer or intermodal container which is convertible for selectively carrying solid freight or bulk liquid freight including a housing, a plurality of collapsible tanks in the housing, liquid outlets in the tanks and conduits in communication with the  liquid outlets  located entirely within the housing and an  opening in the housing proximate the outlets of the conduits.  A liquid washing assembly is permanently mounted on the tanks both in the expanded and collapsed conditions of the tanks.   Guide structure is provided in association with the frame of the collapsible tanks  for  guiding  the  frame  in  a  perfectly  vertical direction both when the tanks are being expanded and being collapsed.   Also,  the bases of the tanks  include pipe structure which permits the bases to be of relatively small depth.
Patent CA-2199017-A1 (CA)
Title: Horizontal subsea tree pressure compensated plug
Inventor: EDWARDS JEFFREY CHARLES
IPC: E21B33/12
Filed: 1995-08-31
Abstract: A pressure compensated plug for use with subsea trees is described in which a reservoir of compressible fluid is located from a cavity within a horizontal tree (10) whereby allowing temperature induced volume changes to be absorbed by the compressible fluid without resulting in significant increase in pressure. This is achieved by providing a pressure compensation apparatus (80) in the cavity, the apparatus comprising a housing (82) with a floating piston (86) in a chamber (84). The lower face (96) of the chamber is exposed to compressible fluid in the form of an inert gas, such as nitrogen, which is pre-charged at the surface to the appropriate hydrostatic pressure of the seabed.  The volume of gas trapped between the lower piston face and the lower face of the cylinder forms the gas reservoir (94). A compensation cylinder can be attached to the upper section of the lower plug (70) and run and retrieved at the same time as the plug, thereby reducing the number of intervention runs.  When the lower plug (70) is set and the cavity isolated, any volume change in the liquid due to temperature increase when the well is producing is compensated by the movement of the piston (86) and subsequent expansion and compression of the inert gas, thus maintaining the cavity pressure at approximately the hydrostatic pressure. This has the result that any pressure increase is limited or obviated and pressure within the tree is within the design pressure of the cap or tree minimising the likelihood of any damage to the plugs or the tree.
Patent CA-2201780-A1 (CA)
Title: Racemisation of precursors to levobupivacaine and analogues thereof
Inventor: DYER ULRICH CONRAD
IPC: C07D211/60
Filed: 1995-10-09
Abstract: A process for the preparation of optically-enriched pipecolic acid as a salt with an optically-active acid, comprises asymmetric transformation of pipecolic acid, as a racemic mixture or a mixture enriched in the opposite enantiomer from that desired, with the optically-active acid in a solvent comprising an acid that causes racemisation, in the absence of aldehyde.
Patent CA-2203711-A1 (CA)
Title: Boom hoist cylinder crane
Inventor: PECH DAVID J
IPC: B66C23/74
Filed: 1997-04-25
Abstract: A crane having an upper works rotatably mounted on a lower works and a boom pivotally mounted on the upper works preferably includes a hydraulic boom hoist cylinder, a hydraulic circuit for controlling the hydraulic boom hoist cylinder, a multiple position wire rope guide, a counter weight positioning mechanism, and a boom parking device. The crane comprises a mast and a hydraulic cylinder pivotally connected to the upper works.  The connection of the mast to the upper works is at a location separate from, and at an elevation below, the elevation of the connection of the hydraulic cylinder to the upper works.  The hydraulic cylinder is pivotally connected to the mast and pendently connected to the boom. The crane also comprises an apparatus and method for lifting, positioning, and assembling a counter weight to the upper works. The apparatus and method includes pivotally connecting a counter weight pivot frame between the counter weight and the upper works and lifting the counter weight into position with the hydraulic boom hoist cylinder. The crane also comprises a multiple position wire rope guide and a method of repositioning the wire rope guide during assembly of the crane. The crane further comprises a boom parking device.