baber/WOPTO huggingface dataset:
Patent CA-2226333-A1 (CA)
Title: Lightweight intervention system
Inventor: EDWARDS JEFFREY CHARLES
IPC: E21B19/22
Filed: 1996-06-21
Abstract: A lightweight intervention system is described for use with single bore and dual bore intervention operations and which can be used with both horizontal trees and conventional trees and with wellheads without trees mounted thereon.  The system is based on a two-part intervention apparatus; the lower part provides the pressure control and consists of an xmas tree or wellhead connector and structural housing in which a sub-sea test tree is located and is coupled to the xmas tree and an upper part, a disconnectable section, attaches to the lower part and consists of a sub-sea test tree latch housed within an xmas tree connector and additional pressure control equipment as required. This general structure can be configured in various ways to create different embodiments for use with horizontal trees and conventional trees which have a single through-bore requirement and a dual bore requirement respectively. With horizontal trees access to the annulus space depends on the type of proprietary valve system used in the tree. The intervention apparatus may also be used directly on wellheads where the tree has been removed.
Patent CA-2229666-A1 (CA)
Title: Spray applicator
Inventor: OPPERMAN NICHOLAS RICHARD JAME
IPC: A61M11/00
Filed: 1996-08-16
Abstract: A multi-dose spray applicator is disclosed for dispensing a pharmaceutical from a sealed container, said applicator comprising means for holding the container, a manually operable metering pump for delivering said pharmaceutical as a nasal spray and a hollow needle associated with said pump for penetrating a membrane sealing said container and dispensing the pharmaceutical through the pump, said container having a movable wall or plug which is movable to displace liquid from the container as it is dispensed by the pump.
Patent CA-2231290-A1 (CA)
Inventor: O'HARA RANDY D
IPC: C22C38/12
Filed: 1998-03-06
Abstract: A steel alloy, for use in casing for oil and gas wells in low pH environments.  The steel alloy has a carbon range by weight of 0.15% to 0.35 %, a manganese range by weight of 0.60% to 1.50%, a molybdenum range by weight of 0.15% to 0.65%, and a sulfur range by weight of less than 0.002%.  The steel alloy also has, by weight, a chromium range of less than 0.50%, an aluminum range of 0.030% to 0.050% and a calcium range of 0.0020% to 0.0045%.
Patent CA-2231630-A1 (CA)
Inventor: GOYAL GOPAL C
IPC: C04B24/16
Filed: 1996-10-11
Abstract: L'invention concerne un adjuvant permettant de diminuer la teneur en eau d'un mélange de béton. L'adjuvant comprend une solution alcaline d'une lignine sous forme sulfométhylolatée. La lignine sulfométhylolatée contenue dans l'adjuvant peut également être réticulée par un agent de réticulation. L'adjuvant comprend en outre un entraîneur d'air. L'invention concerne également des compositions de ciment originales contenant ledit adjuvant.
Patent CA-2231998-A1 (CA)
Title: Procedes therapeutique et profilactique utilisant des proteines du choque thermique
Inventor: SRIVASTAVA PRAMOD K
IPC: A61P31/04
Filed: 1996-09-11
Abstract: L'invention concerne des complexes immunogènes de protéines du choque thermique (hsp) liés de façon non convalente à des molécules antigéniques exogènes lesquelles, lorsqu'elles sont administrées à un individu, mettent en lumière des réponses immunologiques spécifiques chez l'hôte. L'invention concerne également des procédés de prévention et de traitement du cancer et de maladies infectieuses.
Patent CA-2233331-A1 (CA)
Title: Use of sphingosylphosphorylcholine as a wound-healing agent
Inventor: SPIEGEL SARAH
IPC: A61K31/685
Filed: 1996-09-27
Abstract: It has now been found that, at certain concentrations, sphingosylphosphorylcholine (SPC) in solution can be used for wound healing at concentrations of from 0.1 µM to 500 µM. It has been found that at concentrations of 2 µM to 10 µM, very good results could be obtained.  Compositions may be prepared using pharmaceutically acceptable carriers for topical application or for injection in or near the site of the wound.
Patent CA-2234299-A1 (CA)
Inventor: INABA MINORU
IPC: G02B27/22
Filed: 1998-04-02
Abstract: A stereo slide mount capable of reproducing correct three-dimensional effect, facilitating easily mounting operation and correct positioning operation. Plural kinds of stereo slide mounts 1 (#0 to #n) have windows of which the width W stepwisely decreases, have a pitch Pw that remains the same between the windows, and have a different pitch for mounting the right and left films. The base frame is provided with positioning pins 6 that engage with perforations of the films, and the cover frame is provided with pin holes 7 that fit to the positioning pins 6.      The positioning pins 6 and pin holes 7 are so arranged that the inner vertical sides of the windows come into agreement with the inner edges of the film screens irrespective of the width W of the windows. The stereo slide mounts having smaller widths of windows have larger gap widths (P0, P1,----) between the two right positioning pins 6 and the two left positioning pins 6 and, hence, have increased pitches between the right film and the left film, and increased masking amounts on the outer sides of the right and left films.
Patent CA-2235691-A1 (CA)
Title: A process to upgrade crude oils by destruction of naphthenic acids, removal of sulfur and removal of salts
Inventor: OHSOL ERNEST O
IPC: C10G29/16
Filed: 1998-04-23
Abstract: A method for upgrading an oil stream containing naphthenic acid and sulfur contaminants which comprises, adding an alkaline earth oxide to the oil stream to form a mixture wherein said alkaline earth oxide is added at an effective amount to convert substantially all naphthenic acid contaminants to corresponding non-acidic compounds and substantially all sulfur contaminants to alkaline earth metal sulfide, heating the mixture under a pressure sufficient to prevent vaporization of the mixture to a temperature sufficient and for a time sufficient to react the naphthenic acid contaminants with the alkaline earth oxide to form the corresponding non-acidic compounds and alkaline earth carbonate and the sulfur contaminants with the alkaline earth oxide to form the alkaline earth sulfide, and separating the alkaline earth carbonate and alkaline earth sulfide.
Patent CA-2239089-A1 (CA)
Title: Implantable medical device
Inventor: FISCHER FRANK J JR
IPC: A61L29/00
Filed: 1997-06-04
Abstract: An implantable medical device (10) such as a catheter with a pharmacologically active ingredient layered between outer and inner elongated member tubes (11 and 13) for minimizing the risk of infection or other physiological afflictions associated with the implantation thereof. The outer and inner elongated member tubes include a base material mixed with a bioactive material including, for example, one and/or the other of rifampin and minocycline. An itermediate tube or layer (18) is positioned between and in communication with the outer and inner elongated member tubes (11 and 13). The intermediate tube or layer also includes a base material of, for example, silicone with a pharmacologically active ingredient mixed therein. The slower diffusion rate minocycline is included as or part of the bioactive material in the base material of the outer and inner elongated member tubes. The pharmacologically active ingredient or bioactive material such as a mixture of rifampin and minocycline is included in the base material of the intermediate tube or layer, which permeates through the inner and outer member tubes and diffuses therefrom or therethrough for treating tissues surrounding the catheter concomitantly.
Patent CA-2240316-A1 (CA)
Inventor: JONG RAYMOND
IPC: H05H1/30
Filed: 1996-12-10
Abstract: A torch for Inductively Coupled Plasma Spectrometry (ICPS) is formed from quartz and has inner and outer tubes defining an annular channel. The end of the inner tube is within an end portion of the outer tube, to define a chamber for a plasma ball. An inlet for a main gas flow opens tangentially into the annular channel. The annular channel is configured so as to maximize the swirl component of this flow. To this end, a connection to the inlet is provided with an annular toroidal shape, having a cross section to or larger than the inlet. Further, the inlet is mounted relatively close to the end of the inner tube, so as to minimise decay of the swirl component as the gas flows along the annular channel, the length of the annular channel being sufficient to ensure that the flow leaving the annular channel is uniform and has a uniform swirl component. This arrangement enables a significantly reduced consumption of gas to generate a plasma ball, and can give improved performance, in terms of a higher detection rate in a spectrometer.
Patent CA-2240668-A1 (CA)
Title: Adsorbent for phosphate from an aqueous medium, production and use of said adsorbent thereof
Inventor: PHILIPP ERIK
IPC: A23K1/16
Filed: 1996-12-19
Abstract: An adsorbent for phosphate from aqueous medium, particularly for inorganic phosphate or phosphate bound to foodstuffs from body fluids or foodstuffs, which contains beta-iron hydroxide stabilised by carbohydrates and/or by humic acid.
Patent CA-2240832-A1 (CA)
Title: Procede de regulation de la composition de la lignine vegetale
Inventor: CHAPPLE CLINT
IPC: C12N15/82
Filed: 1996-12-19
Abstract: L'invention porte sur un procédé de régulation de la composition de la lignine dans un tissu végétal. On modifie des végétaux au moyen d'un gène codant un gène F5H actif. L'expression du gène F5H se solde par la présence de concentrations élevées d'un monomère de syringyle donnant une composition de la lignine facilement dégradée par des substances chimiques et des enzymes.
Patent CA-2242896-A1 (CA)
Inventor: WALISSER WAYNE R
IPC: C08L61/28
Filed: 1998-07-09
Abstract: A curable, alkaline, melamine modified phenol-formaldehyde resin is prepared from an initial phenol-formaldehyde resole resin containing from 0.5 to 2.5 percent of free formaldehyde by scavenging formaldehyde with 1 to 12 parts of melamine for each 100 parts of the initial resin wherein the molar ratio of formaldehyde to melamine is 0.2 to 1.5 moles of formaldehyde for each mole of melamine to reduce the free formaldehyde to less than 70% of that in the initial resin and prepare a storage stable resin which contains less than 0.7% of free formaldehyde and which maintains its stability under application conditions. An ammonium salt of strong acid and additional water is incorporated in the melamine modified resin to prepare an alkaline binder. The binder is sprayed on to fiberglass with low formaldehyde emissions, good stability and rapid cure in the acid range.
Patent CA-2244129-A1 (CA)
Title: Manufacture of optical data storage disc
Inventor: VEDAMUTTU PAUL
IPC: G03H1/02
Filed: 1997-01-23
Abstract: A method and apparatus forming a micro-relief pattern on a surface of an optical disc, which micro-relief pattern may form a holographic image in which a shim bearing a micro-relief pattern is pressed onto the surface of the disc and the apparatus used ensures that a greater force is applied to the periphery of the disc and the remainder of the surface on which it is desired to form the micro-relief pattern, such method and apparatus enables a satisfactory relief pattern to be formed over a substantial area of the surface of the disc.
Patent CA-2246612-A1 (CA)
Inventor: PICARO TONY
IPC: C01F7/06
Filed: 1997-02-11
Abstract: Prior to the digestion of bauxite (which contains silica) in a digestion solution such as caustic soda for the production of aluminium oxide, the bauxite is mechanically activated to induce a mechanochemical reaction in the presence of a reagent such as lime. At least a portion of the silica is rendered insoluble and unreactive to the formation of sodium-aluminium-silicate desilication product (DSP) during subsequent digestion of the bauxite in the digestion solution.
Patent CA-2246714-A1 (CA)
Title: Method of machining gears during indexing
Inventor: STADTFELD HERMANN J
IPC: B23F9/10
Filed: 1997-02-12
Abstract: A method of machining one or more tooth slots in a bevel gear-shaped workpiece (36) with a cup-shaped tool (24) having one or more stock removing surfaces.  The method comprises indexing the workpiece (36) by rotation about a workpiece axis to bring one of the tooth slots to a final machining position (1).  Simultaneously with at least a portion of the indexing, positioning the tool (24) to contact the workpiece to commence machining the slot and infeeding the tool during the indexing while moving the tool with the indexing workpiece to maintain the tool positioned in the slot. The infeeding, movement of the tool, and indexing continuing at least until the final machining position (1) is achieved.
Patent CA-2246885-A1 (CA)
Inventor: BLACK JAMES E JR
IPC: B61D3/18
Filed: 1998-09-09
Abstract: Improvements to vehicle-transporting railway cars comprising movable bridge plate supports which avoid interference with door clearance requirements, and improved end door lock, and a flexible deflector for decreasing air flow about the outer edges of the end doors. The movable bridge plate supports comprise a lower deck bridge plate support which is movable between a retractable position in which it can support the free end of the bridge plate connected to an adjacent car, and an extended position in which it may be pivotally connected to a bridge plate while spanning a door track. An upper deck bridge plate is provided which comprises a movable member and fixed member, with the movable member and fixed member in combination engaging opposite sides of one of a bridge plate for pivotal connection thereto. Each of the lower deck bridge plates includes a support member for engaging the free end of a bridge plate connected to an adjacent car, and includes a foot to support provided by the door track when in extended position. The improved lock includes lubrication conduits extending between external surfaces and lock pin apertures in top and bottom walls which are joined by a channel shaped side wall structure, and further includes circumferentional channels within the interior surfaces of the lock pin apertures to, dispose between pin engaging surfaces therein, for distribution of lubricant.      The flexible deflector extends inward from each of the side walls where the outer edges of the end doors to decrease or inhibit air flow around the outer edges without contacting the end doors when in closed position. The bridge plate supports, lock, and deflectors all must be sufficiently strong and durable to withstand loads imposed during railway service over extended periods of years, without failure.
Patent CA-2250520-A1 (CA)
Title: Packet data transmission with clash subtraction
Inventor: DENT PAUL W
IPC: H04L12/56
Filed: 1997-03-25
Abstract: A system for transmitting digital data messages between a plurality of stations using a common communications channel is disclosed. The data messages are assembled into data packets which include address and control information.  The data packets are then transmitted from the stations over the common channel using appropriate data representative waveforms or modulation. A  composite waveform representative of the data packets including potentially time overlapping data packets are received and processed to decode at least one packet. The waveform representative of the at least one decoded packet is reconstructed and subtracted form the received composite waveform to obtain a residual waveform. The residual waveform is then further processed to attempt to decode at least one further packet.
Patent CA-2253137-A1 (CA)
Title: Radially oriented motor for a fluid balance ring
Inventor: THOMAS JOHN E
IPC: D06F37/22
Filed: 1998-10-30
Abstract: A radially mounted motor is provided in a closed system fluid balance ring for high rotational speed washing machines.  The motor is mounted at an orientation of 90° relative to the rotational axis of the washing machine spinner.  Such an orientation prevents adverse effects on the motor contacts from centrifugal forces generated by the rotating spinner. A 90° orientation also eliminates deflection of the motor shaft and excessive friction on the motor bearings.  The angular orientation of the motor assures proper functioning of the closed system fluid balance ring of the washing machine.  The balance system also includes a valve to control movement of fluid within the ring.  The valve is mounted at an angle with respect to a tangent of the spinner so as to prevent detrimental effects from the centrifugal forces of the rotating spinner.
Patent CA-2257340-A1 (CA)
Title: Vascular bifurcation endoprosthesis
Inventor: SEGUIN JACQUES
IPC: A61F2/91
Filed: 1997-06-05
Abstract: PCT No. PCT/FR97/00999 Sec. 371 Date Apr. 3, 1998 Sec. 102(e) Date Apr. 3, 1998 PCT Filed Jun. 5, 1997 PCT Pub. No. WO97/46174 PCT Pub. Date Dec. 11, 1997This invention features a device (1) comprising: at least one radially expansible segment (7, 8) with, in the expanded state, a transversal cross section substantially greater than the transversal cross section of one of the secondary ducts (3); one segment (6) with, in the expanded state, a truncated shape, corresponding to the shape of the bifurcation at the flared transition zone (11) which separates the main duct (2) from the secondary ducts (3), and a flexible link (9) between these two segments (6, 7), enabling their adjustment relative to each other, according to the orientation of the secondary duct (3) receiving the radially expandable segment (7) relative to the flared transition zone (11).
Patent CA-2257932-A1 (CA)
Inventor: MCDONOUGH SCOTT D
IPC: E21B10/52
Filed: 1997-06-20
Abstract: A cutter element (65) having a substantially flat wear face (63) and leading compression (64) and trailing tension (66) zones, wherein the leading compression zone (64) is sharper than the trailing tension zone (66). Sharpness is defined as either a smaller inside angle at the intersection of a pair of planes or as a smaller radius of curvature. The cutter element of the present invention experiences reduced stress on its trailing portion in the direction of cutting movement and therefore is less subject to extreme impact damage and cyclic fatigue. The present invention can be applied with particular advantage to heel row cutters (60), but can also be applied to cutters in other rows that primarily ream the borehole corner. The present cutter element can be constructed so as to have a positive or negative rake angle at its leading compression zone, or to have any of a variety of shapes, depending on the characteristics of the formation in which it is to be used.
Patent CA-2258161-A1 (CA)
Title: Powder metallurgical body with compacted surface
Inventor: CARLBAUM NILS
IPC: C21D7/06
Filed: 1997-06-12
Abstract: The present invention concerns compacted and optionally presintered bodies, which are prepared from metal powders and which have densified surfaces, obtained by shot peening or rolling.
Patent CA-2258448-A1 (CA)
Title: Hardfacing compositions and hardfacing coatings formed by pulsed plasma-transferred arc
Inventor: WHITE ALYSIA CANSON
IPC: B23K10/02
Filed: 1999-01-13
Abstract: A new hardfacing composition is disclosed. In addition, a pulsed plasma transferred arc method for depositing hardfacing material with a higher content of carbide and lower dilution by a substrate metal is disclosed. The disclosed method produces a hardfacing coating which has a strong metallurgical bond to the substrate metal. The method includes the following steps: (1) establishing a transferred plasma arc between an electrode and an area of a work piece, (2) optionally preheating the work piece to at least 250°F, (3) forming a plasma column of inert gas in the arc by passing an electrical current between the electrode and the work piece, (4) feeding a stream of hardfacing material in powder form into the plasma column, and (5) pulsing the current between a pre-selected high pulse current value and low pulse current value while feeding the powdered hardfacing material. In this method, the low pulse current is selected to be sufficiently high to melt at least one component of the hardfacing material. The pulse rate and the high pulse current are selected to minimize the formation of a weld pool on the metal substrate during the hardfacing process. This method has applications in hardfacing any metallic work piece which requires wear resistance or erosion resistance. This method is especially effective in hardfacing roller cone surfaces and the milled teeth of a rock bit for erosion and wear protection.
Patent CA-2258681-A1 (CA)
Title: Process for the preparation of 17-esters of 9.alpha.,21-dihalo-pregnane-11.beta.,17.alpha.diol-20-ones
Inventor: KWOK DAW-IONG ALBERT
IPC: C07J7/00
Filed: 1997-06-25
Abstract: The invention provides an improved process for the preparation of 17-esters of 9.alpha.,21-dihalo-pregnane-11.beta.,17.alpha.-diol-20-ones, and in particular for the preparation of 17-esters of anti-inflammatory steroids according to the above-mentioned scheme, wherein RCO, R1, X, Y and the dotted line are as defined in the specification. The novel process is especially suitable for the preparation of Mometasone Furoate.
Patent CA-2261352-A1 (CA)
Inventor: MIYAKE AKIO
IPC: A61B19/04
Filed: 1999-02-09
Abstract: An object of the invention is to provide a polyvinyl chloride resin-made glove exhibiting an antimicrobial activity both on inner and outer surfaces of the glove which has a simple constitution and is easily fabricated to be cost-competitive.       The glove is constituted of a base layer 1 formed of the polyvinyl chloride resin and an antimicrobial agent including layer 2 of which mayor composition is a polyacrylic resin formed on one of the surfaces of the base layer, no matter what the surface may be the outer one or the inner one of the glove. A base layer thickness of the glove is reduced less than a specified thickness through which the antimicrobial agent can penetrate diffusibly from one of surfaces to the opposite surface of the glove.
Patent CA-2263905-A1 (CA)
Title: Chlorofluorocarbon-free mometasone furoate aerosol formulations
Inventor: BERRY JULIANNE
IPC: A61K9/00
Filed: 1997-08-26
Abstract: The invention relates to suspension aerosol formulations which exhibit stable particle sizes, containing mometasone furoate, about 1 to about 10 weight percent ethanol and 1,1,1,2,3,3,3-Heptafluoropropane as the propellant. A surfactant, such as oleic acid, can also be included. These formulations are suitable for use in metered dose inhalers.
Patent CA-2264707-A1 (CA)
Title: Polyol ester fuels additive
Inventor: VRAHOPOULOU ELISAVET P
IPC: C10L1/18
Filed: 1997-09-11
Abstract: A polyol ester fuel additive exhibits reduced intake valve deposits and combustion chamber deposits. The ester has between about 1 % and about 35 % unconverted hydroxyl groups and is characterized as having an hydroxyl number from about 5 to about 180.
Patent CA-2264991-A1 (CA)
Title: Distributrice de dentifrice
Inventor: TROTIER GEORGES
IPC: B65D35/28
Filed: 1999-03-15
Abstract: Un distributeur de dentifrice fait d'une boîte qui comprend une porte donnant accès à l'avant de la boîte. La boite accueille, par la porte, un tube de dentifrice. La boîte comprend une paire de fentes longitudinales, munies de dents, et un rouleau se déplaçant le long desdites fentes pour traverser la boîte et de diamètre suffisant pour écraser les murs du tube afin d'expulser le dentifrice. Le rouleau comprend des bouts en extension ayant une partie engrenée qui s'engage le long des fentes contre les dents et une poignée destinée à faire avancer ledit rouleau.
Patent CA-2269877-A1 (CA)
Title: 5-substituted 6-aminouracils as stabilizers for halogenated polymers
Inventor: FRIEDRICH HANS-HELMUT
IPC: C08K5/15
Filed: 1999-04-22
Abstract: A description is given of compounds of the general formula I     ,  where n is 1 or 2, Y is oxygen or sulfur and R1, R2, R3 and R4 are as defined in claim 1 which are suitable for stabilizing chlorine-containing polymers, especially PVC.