baber/WOPTO huggingface dataset:
Patent CA-2201243-A1 (CA)
Title: Electron-beam generating apparatus, image display apparatus having the same, and method of driving thereof
Inventor: SAKURAGI TAKAMASA
IPC: G09G3/22
Filed: 1997-03-27
Abstract: A driving circuit and a driving method capable of uniformly outputting electron beam at high speed from a multi-electron-beam source (50) having a plurality of cold cathode devices wired in a matrix, to provide a display apparatus having a characteristic of less unevenness in display luminance, a superior linearity in grayscale, and fast response.  The electron-beam generating apparatus includes a multi-electron-beam source (50) where a plurality of cold cathode devices are wired with row wiring and column wiring arranged in a matrix form, a scanning circuit (2) connected to the row wiring, and modulation circuits (10, 20, 30) connected to the column wiring.  The modulation circuits (10, 20, 30) includes: a controlled current source (10) for supplying a driving current pulse to the cold cathode devices, a voltage source (20) for quickly charging parasitic capacity of the multi-electron-beam source (50), and a charging-voltage apply circuit (30) for electrically connecting the voltage source and the column wiring in synchronization with a rise of the driving current pulse.
Patent CA-2201380-A1 (CA)
Title: Improved iontophoretic drug delivery device
Inventor: FLOWER RONALD J
IPC: A61N1/30
Filed: 1995-09-29
Abstract: An iontophoretic drug delivery system (10) having a flexible planar patch (12) including a medicament containing surface (26), and a controller (14) having circuits which supply electric current to effect drug delivery. The patch (12) is detachably coupled to the controller (14) and includes a plurality of spaced-apart electrical contacts.  The controller includes an elastomeric connector which is made of alternating sections of electrically conductive and electrically non-conductive material which, during transcutaneous drug delivery, electrically coupled patch to the controller. The connection is maintained free of contaminants which could adversely affect the electrical connection by employing an abrasive wiping surface (60) to clean the electrical interconnection.
Patent CA-2201658-A1 (CA)
Inventor: SOLARI ANTONIO
IPC: E06B9/58
Filed: 1997-04-03
Abstract: Electromechanical or manual vertically-moving roller curtain for windows in general consisting of a curtain (1) made of thin and flexible material, wrapped around a self-winding upper roller (2) and having its lower edge fastened to a rigid horizontal crossbar (4) connected, in its turn, by links (5), to sliders (6) equipped with matching internal thread, consisting of vertical worm screws (7) provided with matching thread meshing with the internal threads of the sliders (6), a geared motor (8) or a crank driving the worm screws (7) through the driven shaft (9) and through bevel gear pairs (10),  and including a surrounding frame (11, 17) consisting of vertical and horizontal section bars connected by linkage (14, 15, 16) so that when the motor (8) or the crank is driven, a rotation is imparted to the worm screws (7) which, through  sliders (6), vertically move the lower edge  of the curtain (1) which is moved upwards and downwards thus winding and unwinding on the upper roller (2).
Patent CA-2202318-A1 (CA)
Inventor: BILBREY REUBEN
IPC: H02K33/16
Filed: 1997-04-10
Abstract: A vibrator motor for electric hair clippers, massagers and the like includes a fixed magnetically permeable piece and a moving magnetically permeable piece. The fixed and moving pieces form a plurality of flux gap zones between selected corresponding surfaces of the fixed and moving pieces. Each of the flux gap zones has an air gap formed between the selected corresponding surfaces of the fixed piece and the moving piece. The air gaps have a total gap surface area, and an apparent gap surface area. The apparent gap surface area can be measured by viewing a selected surface which forms each gap through a plane which is generally perpendicular to the direction of the path of oscillating motion of the moving piece, or through a selected cross-section of the fixed or moving piece which is perpendicular to the path. In this invention, the total gap surface area of the gap in at least one of the flux gap zones is greater than the apparent gap surface area of that gap or gaps.
Patent CA-2203311-A1 (CA)
Title: Process for the hydroformylation of olefinically unsaturated compounds
Inventor: LAPPE PETER
IPC: C07C45/50
Filed: 1997-04-22
Abstract: Waste gas which is obtained in the hydroformylation of olefinically unsaturated compounds in the presence of an aqueous  catalyst  solution  comprising  water-soluble rhodium complexes  (1st  reaction  stage)  is  fed  to  a homogeneous reaction system in which residual amounts of the olefinically unsaturated compounds from the first reaction stage are reacted in a homogeneous reaction system (2nd reaction stage).
Patent CA-2203669-A1 (CA)
Title: Method for separating substances from a gaseous medium by dry adsorption
Inventor: WEDDE GEIR
IPC: B01D53/08
Filed: 1995-11-22
Abstract: The treatment, through a dry adsorption process, of a gas from a hot electrolytic process for aluminium production comprises at least two stages (3, 4). Particulate aluminium oxide (the adsorbent) passes through the stages (3, 4) of the adsorption process contercurrently to the gas. Thus, the gas is treated with a partly spent adsorbent in a first dry adsorption stage, whereupon the particulate adsorbent is separated from the gas downstream from the first adsorption stage.     Part of the separated particulate adsorbent is removed (33) from the adsorption process with a view to recycling adsorbed fluorine-containing substances to the electrolytic process. The remainder of the separated adsorbent is recirculated in the first adsorption stage in order to optimise the adsorption of fluorine-containing substances and the desorption of sulphur dioxide in this stage. Simultaneously, the gas is transferred to a second dry adsorption stage. In this second stag, the gas is treated with essentially unspent, tractive particulate aluminium oxide, so that any gaseous fluoride remaining in the gas is very efficiently adsorbed, while at the same time a substantial part of the sulphur dioxide in the gas is also adsorbed. Finally, this particulate aluminium oxide is separated from the gas downstream from the second dry adsorption stage, before the gas is discharged into the surrounding atmosphere. The separated aluminium oxide is transferred to the first adsorption stage, optionally after passing a desorption stage (8) for the removal of adsorbed sulphur dioxide in order to reduce the discharges of sulphur dioxide from the aluminium production. The separation of sulphur dioxide in the second adsorption stage is improved by recycling, to the second adsorption stage, aluminium oxide having undergone the desorption treatment.
Patent CA-2203855-A1 (CA)
Inventor: KUNKEL PETER
IPC: A61C5/62
Filed: 1997-04-28
Abstract: An applicator for highly viscous materials such as dental filling materials has a housing and a first and second jamming element positioned spaced from one another in a longitudinal direction in the housing. A coupling rod is connected to the second jamming element. A piston rod is supported in the housing. An actuating element is positioned at the housing and connected to the piston rod for moving the piston rod in a forward direction from an inactive position into a working position, and in a rearward direction from the working position into the inactive position. The first jamming element is jammed, when the actuating element actuates the piston rod in the forward direction, and is moved with the piston rod in the forward direction. The second jamming element is jammed by a spring force in the rearward direction so as to rest at the housing, when the actuating element actuates the piston rod in the forward direction. The actuating element, when moving the piston rod in the rearward direction, acts on the coupling rod for releasing the second jamming element.
Patent CA-2204649-A1 (CA)
Inventor: MORI HIDEFUMI
IPC: B60H1/22
Filed: 1996-09-05
Abstract: A variable capacity type viscous heater is provided which can carry out the capacity control reliably, and which can inhibit the endurable heat-generating efficiency of a viscous fluid from deteriorating even after a long period of service. For instance, its rear housing 6 is provided with a control chamber 9 which is communicated with a central region of a heat-generating chamber 7, and which has an internal volume capable of expanding and contracting. When a rotor 14 is kept rotated, a silicone oil held, in the heat-generating chamber 7, expands theinternal volume of the control chamber 9 by the Weissenberg effect in the capacity reduction. As a result, the heating is relieved, because the silicone oil, held in the heat-generating chamber 7, is collected into the control chamber 9.
Patent CA-2205009-A1 (CA)
Title: Dispensing closure including standards for spout
Inventor: SKILLIN CLIFFORD W
IPC: B65D47/06
Filed: 1995-11-09
Abstract: A dispensing closure (10) consisting of a cap (12) with a cavity (26) defined in its upper surface (18), and a spout (14) to fit within the cavity. Aligned trunnions (42) are formed on opposite sides of the spout. An opening (28) in the cap allows communication between the container upon which the cap is seated and a central passage (46) in the spout. A pair of standard (30, 32) are molded within the cavity in the cap, and one standard is situated on each side of the opening. A U-shaped bearing (34, 36) is located at the upper end of each standard and spaced fingers (38) define the entrance into each bearing. The trunnions are forced downwardly into the opening in each bearing.  The bearings accept the trunnions thus securing the spout to the cap. The spout is mounted for pivotal movement between a closed position, and an opened position, which permits the discharge of the contents of the container.
Patent CA-2205642-A1 (CA)
Inventor: ROSHDY CONSTANCE
IPC: A61B19/02
Filed: 1997-05-15
Abstract: A folder package for a electrosurgical scissors.. The package has a base panel having a pair of substantially opposed major sides and a pair of substantially opposed minor sides.  Foldably connected to a top minor side of the base panel is a scissors retention panel.  The scissors retention panel is preferably foldably connected along a crushed fold line. The scissors retention panel has a base or bottom section, and an intermediate middle section and a top. The scissors retaining panel has a pair of opposed outwardly extending tab panels.  Each tab panel has a pair of crushed fold lines contained therein.  Extending from the top of the scissor retaining panel is a  tab member.  The tab has a U-shaped slit forming a retention tab and an opening.  An additional slit at the end of the tab member intersects the U-shaped slit and divides the end of the tab member adjacent to the top of the U-shaped slit into opposed L-shaped members.
Patent CA-2205821-A1 (CA)
Title: Data-logging apparatus for livestock
Inventor: PENNING PETER DALE
IPC: A01K29/00
Filed: 1997-05-22
Abstract: The data-logging apparatus for fitting to an animal comprises a sensor for sensing one or more conditions or activities of the animal, a processor for processing output signals from the sensor and to store data relating to one or more activities or conditions, and a timer to control the instant of time at which the processor commences and/or ceases to operate.
Patent CA-2205950-A1 (CA)
Title: Substituted 2-(phosphinyloxymethyl)-1,2,5-thiadiazolidin-3-one 1,1-dioxides and compositions and method of use thereof
Inventor: DESAI RANJIT C
IPC: A61P43/00
Filed: 1995-11-30
Abstract: Substituted 2-(phosphinyloxymethyl)-1,2,5-thiadiazolidin-3-one 1,1-dioxides, pharmaceutical compositions containing them and methods for the treatment of degenerative diseases utilizing them.
Patent CA-2206670-A1 (CA)
Title: Heat treated blood plasma proteins
Inventor: HARDY JOHN CHARLES
IPC: C07K14/75
Filed: 1995-12-08
Abstract: A lyophilised fibrinogen is produced which is subjected to a severe terminal viricidal heat treatment in order to inactivate viruses present, whilst retaining desirable biological properties. In particular the lyophilised fibrinogen has a solubility in water or other aqueous solution to 40 g/l in less than 20 minutes at 20 °C, and a clotting time of less than 10 seconds when exposed to at least 200 U/ml thrombin.  The product may be heat treated at 80 °C for 72 hours up to 100 °C for 10 hours depending on formulation and water content. In the production process cyoprecipitate is washed with polyethylene glycol solution at 4 to 10 °C and pH 6.8 to 8 at low ionic strength, prior to two-stage freeze drying.
Patent CA-2207468-A1 (CA)
Inventor: SLACK WILLIAM E
IPC: C08J9/02
Filed: 1997-06-11
Abstract: This invention relates to a process for preparing integral skin foams from a specific reaction mixture. The isocyanate of this reaction mixture comprises a stable, liquid MDI based prepolymer containing an allophanate-modified MDI, and having an NCO content of 5 to 30%. This isocyanate comprises the reaction product of an allophanate-modified MDI and a polyether polyol. Integral skin foams prepared from these allophanate-modified isocyanate prepolymers exhibit improved properties and improved resistance to Taber abrasion in comparison to conventional isocyanate prepolymers.
Patent CA-2208051-A1 (CA)
Inventor: CHAPMAN JOHN
IPC: A61K35/16
Filed: 1996-11-26
Abstract: Systems and methods treat plasma carrying contaminants and leukocytes that are capable of entraining contaminants. The systems and methods separate leukocytes from the plasma by filtration, thereby removing contaminants entrained within leukocytes. The systems and methods also add to the plasma a photoactive material and emit radiation at a selected wavelength into the plasma to activate the photoactive material and thereby eradicate the contaminant that is free of entrainment by leukocytes.
Patent CA-2208559-A1 (CA)
Title: Polyethylene articles with improved resistance to water vapor transmission
Inventor: DAVIS DONNA S
IPC: C09K3/10
Filed: 1995-12-20
Abstract: Films, containers made of high density polyethylene, and articles made therefrom exhibit, for a given density, improved resistance to water vapor transmission. The high density polyethylenes are produced in a metallocene-catalyzed production process. Alternatively, for equivalent water vapor transmission rates (WVTR) an article formed in accordance with the invention will exhibit improved physical properties, such as dart drop impact, more balanced tear properties and improved machine direction (MD) tear properties.  Additionally, these high density polyethylenes show a low level of extractables and an excellent organoleptic profile.
Patent CA-2209658-A1 (CA)
Inventor: MIZRAHI SADI
IPC: C07C15/08
Filed: 1996-02-09
Abstract: A heavy aromatics feed is converted to lighter aromatics products, such as benzene, toluene and xylenes by contacting a C9+ aromatics fraction and benzene and/or toluene over a catalyst comprising a zeolite, such as ZSM-12, and a hydrogenation component, preferably platinum. The catalyst, complete with hydrogenation component, is treated to reduce aromatics loss. Treatment includes exposure to steam and/or sulfur or nitrogen after incorporation of the hydrogenation component. For additional stability and aromatics retention the steamed and/or sulfur treated catalyst is sulfided by cofeeding a source of sulfur. A low hydrogen partial pressure is preferably employed to assist in aromatics retention.
Patent CA-2210969-A1 (CA)
Inventor: SANNER AXEL
IPC: A61Q5/12
Filed: 1997-07-31
Abstract: A description is given of water-soluble or water-dispersible polyaspartic acid derivatives, their preparation and their use in cosmetology, especially in hair cosmetology.
Patent CA-2213118-A1 (CA)
Inventor: WOODON DRURY L
IPC: A61N1/365
Filed: 1996-05-31
Abstract: Dispositif implantable (3) assurant l'acquisition de données physiologiques et d'informations d'état. On comprime les données physiologiques afin de réduire la capacité de mémoire nécessaire au dispositif implantable et/ou d'augmenter la quantité de données que l'on peut stocker. La technique de compression met en oeuvre une résolution variable tout en conservant la précision désirée. On transforme en valeur numérique les données physiologiques, par exemple la fréquence cardiaque. Ensuite, on partage la représentation numérique en sous-plages, et on attribue à chacune des sous-plages des valeurs de résolution différentes. On sélectionne chaque résolution de manière qu'elle conserve la précision voulue. On divise la durée de l'intervalle par la résolution en question afin d'obtenir une valeur numérique correspondant à la durée de l'intervalle dans la plage en question, puis on corrige la valeur numérique en fonction de la sous-plage afin d'obtenir la valeur numérique codée comprimée que l'on pourra ensuite stocker en mémoire conjointement avec les autres données voulues.
Patent CA-2213858-A1 (CA)
Inventor: HASEGAWA TAKUYA
IPC: H01M50/491
Filed: 1996-03-01
Abstract: A polyethylene microporous film excellent in mechanical strength, permeability and productivity and having a very high reliability such that the safety of a battery may be secured even under severe circumstances which film has a crosslinked structure and has a porosity of 20 - 80%, a gel fraction of 1% or more, and an average pore diameter determined by the permeation method of 0.001 - 0.1 .mu.m, and a process for producing the poly-ethylene microporous film.
Patent CA-2215110-A1 (CA)
Title: Zinc and zinc-alloy hot-dip-coated steel sheet having decreased bare spots and excellent coating adhesion and a method for manufacturing the same
Inventor: KYONO KAZUAKI
IPC: C23C2/26
Filed: 1997-01-13
Abstract: A zinc and zinc-alloy hot-dip-coated steel sheet and an alloyed zinc and zinc-alloy hot-dip-coated steel sheet, and a method for manufacturing these steel sheets, which steel sheets are used for automobiles. A zinc and zinc-alloy hot-dip-coated steel sheet which has oxides of readily oxidizable elements just under a coated layer and which shows a decreased number of bare spots and excellent coating adhesion. According to the method, the temperature for coiling during hot rolling is set to not less than 600°C and the cooling is conducted at a slow-cooling rate so that the oxides remain after the following steps.
Patent CA-2215468-A1 (CA)
Title: Fluid dispensing device including at least one remote-controlled motor, particularly a water mixing valve
Inventor: RICHARD JEAN-CLAUDE RENE
IPC: F16K11/02
Filed: 1996-03-28
Abstract: A device for dispensing a so-called secondary fluid that may be prepared by mixing together at least two so-called primary fluids. The device comprises a body consisting of two portions separated by a flexible sealing wall on one side of which are connected the inlet pipes for respective primary fluids, and an outlet pipe for the secondary fluid, wherein said pipes communicate with one another via a mixing chamber and each pipe has a member controlled by drive means and located on the opposite side of the flexible sealing wall for controlling the flow rate of the fluid in said pipe. The device is characterised in that each control member includes, in addition to the flexible sealing wall (300), an individually movable element (102-103 and 104105) located on one side of said flexible sealing wall (300) and extending perpendicularly to the ends of each of the inlet pipes (203, 204) on the other side of said flexible sealing wall (300), as well as as many individual cams (121, 122) as there are movable elements (102-103 and 104-105). Said cams (121, 122) have a continuously variable engagement surface, and are kinematically connected to drive means (116-117-118) and permanently in contact with the movable elements (102-103 and 104-105) either directly or via intermediate elements (110, 111). Furthermore, said cams are kinematically interconnected so that any movement imparted to one cam (121, 122) by the drive means (116-117-118) is matched by a simultaneous movement of the other cam (122, 121).
Patent CA-2216668-A1 (CA)
Title: Telescoping joint for use in a conduit connected to a wellhead and zone isolating tool for use therewith
Inventor: HAYNES MICHAEL JONATHON
IPC: E21B23/00
Filed: 1997-09-23
Abstract: A telescoping joint for use in a conduit connected to a wellhead and supporting downhole well tools to permit the downhole well tools to be axially displaced in the well bore without disconnecting the conduit from the wellhead is described.  The telescoping joint is particularly useful in conjunction with  an  apparatus  for  providing  an  axially displaceable isolated fluid zone in a cased well bore, which is also described.  The telescoping joint and the apparatus are used in conjunction for producing a predominance of a fluid  of  interest  from a  cased well  bore  which  passes through a production zone that yields at least two fluids having different densities.  The telescoping joint may also be  used  in  conjunction  with  other  downhole  tools  for performing a plurality of downhole operations which require axial displacement of the tools in the well bore without disconnection  of  the  conduit  from  the  wellhead.   The advantage  is  the  ability  to  move  downhole  well  tools supported by a conduit such as a production tubing up or down in the well bore without disconnecting the production tubing from the wellhead or removing or adding sections to the tubing string.  This permits many downhole operations to be much more economically and quickly accomplished including the selective production of oil or gas from water-bearing formations.
Patent CA-2225982-A1 (CA)
Title: Three-level laser system
Inventor: BERG JACQUELINE G
IPC: H01S3/06
Filed: 1997-12-29
Abstract: The present invention provides a solid state laser gain medium 28 comprising: (a) a gain layer 30 having pump regions 32 and first and second contact regions 34 and 36, respectively; (b) a first transparent layer 38 optically connected to the first contact region 34 of the gain layer 30 by diffusion bonding; and (c) a second transparent layer 40 optically connected to the second contact region 36 of the gain layer 30 by diffusion bonding.  The transparent layers 38 and 40 are transparent to the lasing wavelength of the gain medium 28.  The present invention also provides an apparatus for amplifying laser light, comprising:          (a) a solid state, slab geometry gain medium 44 having lateral pump faces 46 and a principal radiation absorption axis C; and (b) an excitation mechanism 48 located along the pump faces 46 of the gain medium 44 for generating polarized light along G polarization axis 52 wherein the polarization axis 52 is parallel with the principal absorption axis C of the gain medium 44 to provide increased radiation absorption.  The present invention- also provides a cooling system 58 for a solid state gain medium 60 generating laser output laser emission at a wavelength from about 2 µm to about 3 µm.  The cooling system 58 including G coolant material such as D20 for reducing absorption of laser emissions by the coolant at wavelengths from about 2 µm to about 3 µm.
Patent CA-2227586-A1 (CA)
Inventor: PHILLIPS NANCY H
IPC: C08L75/14
Filed: 1996-07-25
Abstract: Thermal transfer articles of the invention comprising a carrier, optionally a release layer, a color layer releasably adhered thereto, and optionally an adherence layer on the bottom side of the color layer. Also graphic imaging compositions and methods for thermal transfer using such articles and compositions and graphic articles made by such methods. The transfer articles 1) exhibit thermoplastic, low cohesive properties during transfer such that good image resolution and transfer is achieved and 2) are radiation cross-linked after transfer such that a durable image is formed.