baber/WOPTO huggingface dataset:
Patent CA-2141384-A1 (CA)
Inventor: HOWARD LEE JARVIS
IPC: C07C7/04
Filed: 1995-01-30
Abstract: A closed-loop mixed refrigerant cycle provides efficient low-level refrigeration for recovering ethylene from a mixed gas feed.  Compressed mixed refrigerant vapor is condensed at -20°F to -50°F and is subcooled to -175°F to -225°F by indirect heat exchange with cold H2, methane, and expander streams from elsewhere in the ethylene plant.  A portion of the subcooled refrigerant may be flashed to provide additional subcooling of the main mixed refrigerant stream.  Subcooled mixed refrigerant is subsequently flashed to provide very low temperature level refrigeration for feed condensation and demethanizer overhead condenser duties.  The invention allows advantageous operation of the feed chilling train at pressures between 150 and 400 psia.
Patent CA-2143073-A1 (CA)
Inventor: MORI NOBUYOSHI
IPC: G03G5/05
Filed: 1995-02-21
Abstract: The invention relates to an organic photoreceptor with a good durability against active gases, such as ozone, and good repetition characteristics.  The electrophotography photoreceptor comprises a photosensitive layer of an organic material on a conductive substrate.  A charge transport layer, that is the outermost layer of the photosensitive layer contains both an ester phosphite antioxidant and a hindered phenol antioxidant.
Patent CA-2143397-A1 (CA)
Title: Gold processor
Inventor: VERMEULEN ARCHILLE A G
IPC: B03B5/62
Filed: 1995-02-24
Abstract: A machine for continuous processing of aggregate minerals to isolate highest density particles, namely gold, with environmental and security adaptive features.            Some of the problems encountered in sluice boxes, jigs, spiral, and centrifigal force separators is the loss of gold particles to surface tension and concentrate compaction. Slow complex structures, limited production capabilities, with down time while cleaning out concentrate.  This invention has a natural fluidizing hopper which receives wet and dry aggregate. The surface tension adherence of fine particles is mitigated as aggregate slips down to its pressurized processing chamber. Aggregate is impacted by (specifically energized) injected crossflow waves directing dispersed aggregate at angle upward along the processing chamber. Multiple verticle rods along chamber create cross flow riffle action dispersal effects which enhance precipitation to micron size particles. The counter acting back pressures of the water head in the sloped gradient chamber contribute in part to the overall turbulant dispersal, spiraling, precipitating actions ,therein. As targeted density particles settle to the chamber floor, the gradient of the chamber and water head contained therein mitigates against their upward movement. The particles fall through a floor screen entrapping and protecting them from uplifting floor currents. They slip gavitationally down chamber to a collection slot and portal exit in a continuous stream. The refuse aggregate and water are caught in a split chamber for removal and draining. Cleared water is recycled back to inlet valves.
Patent CA-2143462-A1 (CA)
Inventor: MCGOVERN MARK E
IPC: A61K31/22
Filed: 1995-02-27
Abstract: A method is provided for slowing the progression of coronary artery atherosclerosis in patients with proven coronary artery disease and hypercholesterolemia employing pravastatin over prolonged periods.
Patent CA-2145843-A1 (CA)
Title: Lubricant mixtures and grease compositions based thereon
Inventor: ROTH ROBERT J G
IPC: C10M111/00
Filed: 1995-03-29
Abstract: Lubricant mixtures for use as base fluid in bearing grease comprising 25 to 90% w/w of a liquid ester having a viscosity at 40°C in the range 100 to 200 mm2/s, and 75 to 10% w/w of a liquid poly-.alpha.-olefin having a viscosity at 100°C in the range 2 to 10 mm2/s, and bearing grease compositions containing a major proportion of such lubricant mixtures, particularly such compositions containing a clay thickener.
Patent CA-2152164-A1 (CA)
Title: Hydrophilic polyurethanes
Inventor: FISHER HERBERT
IPC: C09J7/38
Filed: 1993-12-14
Abstract: Described are hydrophilic non-ionic water-soluble high-molecular polyurethanes with a specific viscosity of at least 0.4 (measured on a 1 % aqueous solution at 20 °C). The polyurethanes can be produced essentially from polyethylene glycol and a diisocyanate at 80 to 200 °C without using a catalyst or solvent. They can be used as a basis for adhesives, in particular fusion and solvent adhesives, to bond e.g. wall-paper and labels. They can also be used as stabilizers in emulsion polymerization and as viscosity-increasing agents in aqueous systems.
Patent CA-2152625-A1 (CA)
Title: Closed loop pulse width modulator inverter with volt-seconds feedback control
Inventor: GARCES LUIS J
IPC: H02M5/458
Filed: 1993-12-06
Abstract: A closed loop pulse width modulator (PWM) inverter corrects for variations and distortion in the output AC voltage waveform caused by non-linearities of the switching devices or changes in the DC link voltage. A signal is generated that is a volt-seconds representation of the voltage error between a voltage command and the actual AC output voltage of the PWM inverter. The volt-seconds error signal becomes a controlling means in the closed loop of the PWM inverter to regulate the output AC voltage of the PWM inverter. Another signal that represents changes in the DC link voltage also modifies the voltage command signal. The system will compensate for the non-linear behavior of the PWM inverter due to deadtime, minimum on-times and off times, and DC link voltage variations and voltage drops across the switching devices, and will also allow the operation of the inverter in a linear fashion for the region of operation when one or more of its phases are saturated, i.e., either full on or full off.
Patent CA-2153397-A1 (CA)
Title: Prefabricated steel-concrete composite beam
Inventor: LEVO PERTTI
IPC: E04C5/065
Filed: 1994-01-10
Abstract: The invention relates to a prefabricated steel/concrete composite beam arranged to act together with concrete as a load-bearing composite structure for various slab assemblies and having two web portions (1) and horizontal projecting flange portions (2) extending outside the web portions, the web portions (1) being positioned with a mutual spacing side by side and interconnecting at one edge of each web portion (I) by means of a horizontal top portion (3), and the web portions (1) and the horizontal top portion (3) being arranged to define a space which can be filled with concrete (4). To improve the properties of the beam, at least one plate-like member (5) is disposed substantially vertically in the space defined between the web portions (1) and the horizontal top portion (3), the plate-like member being provided with openings (6) positioned with mutual spacings successively in the longitudinal direction of the beam, and being attached at the upper edge to the lower surface of the horizontal top portion (3).
Patent CA-2155602-A1 (CA)
Title: Hanging file support structure for a drawer
Inventor: PETERSEN KIRK
IPC: B42F15/00
Filed: 1995-08-08
Abstract: A hanging file support structure for the drawer of a file cabinet comprises a hangrail and a bracket for supporting the hangrail in a generally horizontal position within the drawer.  The bracket is generally C-shaped in cross-section and has pairs of hooks extended from edges thereof which are received in slots provided in a wall of the drawer.  Two sets of slots are provided in the wall of the drawer such that the bracket may selectively be supported in either of two positions thereby defining two separate positions for the hangrail to accommodate hanging file folders of different widths.
Patent CA-2155872-A1 (CA)
Title: Oxytocin Antagonist
Inventor: FLOURET GEORGE
IPC: A61K38/095
Filed: 1994-02-09
Abstract: The oxytocin antogonist represented by formula (I)   wherein (S-PmP is .beta.,.beta.-(3-thiapentamethylene)-.beta.-mercaptopropionic acid, D-Trp is the D form of tryptophan, and Ile, Gln, Asn Pen (Pen = penicillamine), Pro, and Arg are the L forms of isoleucine, glutamine, asparagine, penicillamine, proline and arginine, respectively. This compound can be administered to pregnant women to arrest premature labor while avoiding unwanted side effects due to antogonism of the antidiuretic hormone, vasopressin.
Patent CA-2159161-A1 (CA)
Title: Method for controlling the temperature of a plastic mold
Inventor: LIEHR ERICH
IPC: B29C45/78
Filed: 1995-09-26
Abstract: A method for controlling the temperature of injection molding machines using cross-linking polymers and molding die units using plastics. Each unit is equipped with at least one cooling channel for circulating a temperature controlling medium therethrough. The temperature of the exhausted medium is compared to a desired value and the circulation of the medium is adjusted accordingly. The method includes the steps of calculating the heat dissipation within a cycle and presetting the desired heat dissipation, prior to the start of temperature control. The temperature of the exhausted medium and the feed medium are continuously measured. The heat content WRG of the unit is determined once the unit reaches thermal equilibrium. The value WRG is stored in a subsequent cycle as a desired value based on the difference between the temperature of the exhausted medium and the feed medium during a reference cycle. The desired value is compared with the instantaneous actual value measured during all subsequent cycles. A correction value is determined based on the deviation of the heat content from the reference cycle. The temperature control impulses trigger at point Z1 and terminate at Z2 at the latest. Events Z1 and Z2 are preset by signals from the unit sequence controller.
Patent CA-2160619-A1 (CA)
Inventor: YANG SEN
IPC: B41M5/00
Filed: 1995-10-16
Abstract: A glossy ink jet receiving paper comprising  (1)  a paper substrate having a gloss greater than about 20 as measured at a 60 degree angle, a Sheffield smoothness of less than about 80 Sheffield units, an opacity of greater than about 70%, and a brightness of greater than about 70%; and (2) an ink receptive coating containing one or more water-soluble components in a total amount of about 4 to about 100 wt%, based on the total weight of solids in the coating; wherein the prepared glossy ink jet receiving paper should possess a gloss of greater than about 50 as measured at a 60 degree angle, a Sheffield smoothness of less than about  300 Sheffield units as measured on a surface of the paper coated with the ink receptive coating, an opacity of greater than about 70% as measured on a surface of the paper coated with the ink receptive coating, and a brightness of greater than about 70% as measured on a surface of the paper coated with the  ink receptive coating.
Patent CA-2168923-A1 (CA)
Title: Process for the enzymatic synthesis of .beta.-lactam antibiotics in the presence of an enzyme inhibitor
Inventor: ZENONI MAURIZIO
IPC: C12N9/84
Filed: 1996-02-06
Abstract: Disclosed is a process for producing penicillins or cephalosporins by reacting an amino group of impure 6--aminopenicillanic acid or 7-aminocephalosporanic acid with an amide of the formula (see above formula) in which R is an optionally substituted 6-membered hydrocarbon ring and R2 and R3 are each hydrogen or lower alkyl. The reaction is catalyzed by a penicillin acylase enzyme and takes place in the presence of enzyme inhibitors that are naturally contained in the impure 6-aminopenicillanic acid or 7-aminocephalosporanic acid.
Patent CA-2169178-A1 (CA)
Title: Composition and methods using nitroxides to avoid oxygen toxicity
Inventor: HSIA JEN C
IPC: A61K45/06
Filed: 1994-08-16
Abstract: This invention relates to the technical field of compositions and processes to alleviate oxygen toxicity based on the addition of nitroxides to physiologically compatible macromolecules.  In particular, hemoglobin-based red cell substitutes are described featuring stable nitroxide free radicals for use in cell-free hemoglobin solutions, encapsulated hemoglobin solutions, stabilized hemoglobin solutions, polymerized hemoglobin solutions, conjugated hemoglobin solutions, nitroxide-labelled albumin, and nitroxide-labelled immunoglobulin. The formulations described herein interact with free radicals, act as antioxidant enzyme-mimics, and alleviate oxidative stress and oxygen-related toxicity.
Patent CA-2170904-A1 (CA)
Inventor: MAY KARL
IPC: F27B7/04
Filed: 1994-08-23
Abstract: Le tambour de carbonisation à basse température (8) pour ordures (A) comprend une pluralité de tubes de chauffage (12) disposés dans une enceinte intérieure (13). Ces derniers sont fixés respectivement, par l'une de leurs extrémités, à une première plaque terminale (28), et par leur autre extrémité, à une seconde plaque terminale (30). Entre les deux plaques terminales (28, 30), il est prévu au moins un emplacement d'appui (X, Y) destiné à supporter les tubes de chauffage (12) afin d'éviter tout fléchissement. Chaque emplacement d'appui (X, Y) est subdivisé en languettes d'appui partielles, à une distance p  >/=  2 entre elles et ayant chacune une configuration en console (I, II, III). Chacune de ces configurations (par exemple I) comprend plusieurs consoles d'appui situées dans un même plan (par exemple Ia à Id). Les consoles d'appui (Ia à Id, IIa à IId, IIIa à IIId) sont disposées l'une derrière l'autre (échelonnées) et décalées en rotation. Les composants solides (f) des ordures (A) peuvent ainsi être transportés tout à fait librement devant les emplacements d'appui (X, Y).
Patent CA-2172868-A1 (CA)
Inventor: DESROCHERS ROLAND
IPC: E02F3/36
Filed: 1996-03-28
Abstract: A tool for attachment to the end of the articulated arm of a backhoe or other power shovel is disclosed. The tool provides a forwardly directed blade, i.e. a blade directed away from the tractor unit of the power shovel. The blade is usable to excavate soil from under a buried pipeline and allows an operator to see the blade while in use. The blade of the invention is substantially planar in structure and is formed from a larger flat bottom plate welded to a smaller flat top plate. The tool additionally provides left and right ears, each ear having an upper and a lower pin hole for attachment to the end of the articulated arm. Each pin hole provides a reinforcing collar. Braces reinforce the connection between the blade and the ears.
Patent CA-2175722-A1 (CA)
Title: Expandable stent and method for delivery of same
Inventor: PENN IAN M
IPC: A61F2/915
Filed: 1996-05-03
Abstract: An expandable stent comprising a proximal end and a distal end in communication with one another. A tubular wall is disposed between the proximal end and the distal end. The tubular wall having a longitudinal axis and a poroussurface defined by a plurality intersecting members arranged to define a first repeating pattern comprised of a polygon. The polygon has a pair of side walls substantially parallel to the longitudinal axis, a concave-shaped first wall having a first apex and a convex-shaped second wall having a second apex, the first wall and the second wall connecting the side walls. At least one of the first apex and the second apex is substantially flat. The stent is expandable from a first, contracted position to a second, expanded position upon the application of a radially outward force on the stent. A bifurcated stent including the first repeating pattern is also described.
Patent CA-2179086-A1 (CA)
Title: Substituted imidazoles as modulators of multi-drug resistance
Inventor: MJALLI ADNAN M
IPC: C07D233/64
Filed: 1996-06-13
Abstract: This invention relates to compounds of Formula 1 which are pharmacologically useful for the treatment of cancer through sensitization of multi-drug resistant cancer cells to chemotherapeutic agents.        (see fig.I) wherein R1, R2, R3, and R4 are, for example, alkyl, aryl, etc., which are defined more specifically hereinafter.
Patent CA-2182259-A1 (CA)
Title: Single lever valve and cartridge with integral mixing chamber and divided waterway
Inventor: BREDA SILVANO
IPC: F16K11/085
Filed: 1996-07-29
Abstract: A valve assembly is provided including a housing having a top and bottom and having disposed between its top and bottom an opening wherein a cartridge is inserted. The housing has axially aligned inlets and outlets for hot and cold water, and carries a cartridge. The cartridge includes portions which are moveable in relation to said housing and a stationary sleeve having a first area and a second area and inlets and outlets, and an interior smooth surface. The cartridge has disposed within the stationary sleeve a moveable stem member which is rotatable and preferably non-reciprocal. The moveable stem member has a perimeter, and has disposed about its perimeter a first and second chamber area separated by a compound seal. The seal includes a first primary sealing portion for sealing the inlet of the stationary sleeve and a secondary seal portion for separating the first and second chamber areas of the moveable stem member.   The moveable stem member has disposed therewith inlets for allowing water to pass into the center thereof, wherein there may be contained a pressure balancing spool or a water separating plug. Preferably the outlets of said moveable stem and said stationary sleeve being substantially L-shaped, and inverted L-shaped respectively, which are selectively alignable to provide for an increased volume of water through the valve assembly. The housing includes a dividing dam in the outlet to the bathtub, for example a bifurcated cross section, wherein when water enters the valve assembly the first and second chamber area of the moveable stem member will maintain separation of the waterways for the first chamber area for cold water and the second chamber area for the hot water, and wherein the first and second chamber areas of the stationary sleeve will provide the necessary waterways for water exiting the valve. The first waterway area of the stationary sleeve being in alignment with the outlet from said stationary sleeve to provide in combination with the interior of said housing opening a waterway and mixing chamber to provide a path for mixed cold and hot water to exit through the tub outlet. When a diverting plug type mechanism is operated typically found on the spout outlet of a tub, the water exiting the spout will be diverted back and over the dividing dam into the second cross sectional area of the bifurcated outlet back into the second waterway area of the stationary sleeve, such waterway area provided thereby between the sleeve and the housing, will divert the water up to the shower outlet.
Patent CA-2183748-A1 (CA)
Title: Spaced fabric
Inventor: BOETTGER WOLFGANG
IPC: D03D1/00
Filed: 1995-02-13
Abstract: The invention relates to a spacer fabric, in particular a velour fabric, having a first layer (1) and a second layer (2) and pile threads (4, 5, 6, 7) joining the layers (1, 2) together. To obtain such a spacer fabric in particular as a basis for the production of a building component formed therefrom by resinification, in which despite increase in strength there is the least possible increase in total weight and/or in which there is achieved as simple and effective as possible processing having regard to resinification, the invention proposes that between the layers (1, 2) and joined to or starting from the freely floating pile threads (4, 5, 6, 7), there be provided branches running in weft and/or warp direction, which branches, in so far as they are woven, are accommodated in a cross-over region between two pile threads (4, 5, 6, 7), each of which alternates from layer to layer (additional weft threads), or runs alternately around neighbouring additional weft threads (additional warp threads).
Patent CA-2184155-A1 (CA)
Title: Diesters of carbonic acid endowed with antiviral and anti-inflammatory activity
Inventor: SALA ALBERTO
IPC: C07C219/32
Filed: 1995-02-22
Abstract: Diesters of carbonic acid disubstituted with primary, secondary or tertiary amine groups, pharmaceutically acceptable salts thereof, and their use as antiviral and anti-inflammatory agents.
Patent CA-2184780-A1 (CA)
Title: Methods of diagnosing and treating cancer
Inventor: BECK FELIX
IPC: A01K67/027
Filed: 1996-09-04
Abstract: The present invention relates generally to methods of diagnosing and treating cancer and more particularly colon cancer.  Even more particularly, the present invention provides a genetically manipulated live animal model useful for developing diagnostic and treatment protocols for colon cancer.  The present invention further provides agents useful for diagnosing and treating colon cancer in animals such as mammals including humans. In a particularly preferred embodiment the present invention provides a genetically altered animal or progeny of said animal wherein said animal comprises a mutation in at least one allele of Cdx2 or equivalent thereof and which is a homologue of the Drosophila caudal gene and wherein said genetically altered animal has a predisposition to develop growth of neoplastic cells in intestinal epithelium.
Patent CA-2186050-A1 (CA)
Title: Sound generating apparatus and method, sound generating space and sound, each provided for significantly increasing the cerebral blood flow of a person
Inventor: NISHINA EMI
IPC: A61M21/00
Filed: 1996-09-20
Abstract: The present invention relates to a sound generating apparatus, a sound generating space, a sound, and a method for generating a sound.  A sound is generated which has a frequency within a first frequency range beyond a predetermined audible frequency range and up to a predetermined maximum frequency.  The sound is non-stationary so as to change in a micro-temporal area in a second frequency range beyond 10 kHz.  The generated sound is then applied to a person, thereby increasing cerebral blood flow of the person, which causes an improvement and an enhancement of the person's state of mind and body, so as to relieve stresses, thereby relaxing the person.
Patent CA-2187707-A1 (CA)
Inventor: LIVINGSTON DAVID T
IPC: B63B1/04
Filed: 1996-10-11
Abstract: A boat with a unique hull that stabilizes watercraft during turning conditions in water, thereby substantially reducing or eliminating the side-to-side oscillation that is typical of prior art craft undergoing this maneuver. To achieve this enhancedstability, the hull has a series of ridges or troughs, or both, to disrupt laminar flow along the hull, when the craft turns. This disruption of laminar flow stabilizes the hull and substantially eliminates side-to-side oscillation.
Patent CA-2187862-A1 (CA)
Inventor: KITAMURA JOHN
IPC: G09G5/391
Filed: 1996-10-15
Abstract: A method of drawing moving images on a graphics display comprising (a) receiving data defining an input image in a predetermined resolution, (b) commanding a graphics processor to draw a corresponding image frame on a display having a number of scanning lines which is a multiple m of a number of scanning lines of the input image and a multiple n of a number of pixels in a horizontal line of the input image, (c) drawing successive lines of the input image on a first and on each mth scanning line of the graphics display, while stretching each pixel on each drawn line over n pixels, (d)  copying each drawn line on respective immediately following m-1 lines, and (e) repeating steps (b) - (d) for successive frames of the input image.
Patent CA-2188492-A1 (CA)
Title: An infusion catheter
Inventor: MATSUDA TAKEHISA
IPC: A61F2/958
Filed: 1996-10-22
Abstract: An infusion catheter having a catheter shaft with a distal end, an inflatable and contractible balloon provided adjacent the distal end but spaced therefrom, a blood passage with two openings for passing blood through the balloon, and first and second lumens. The first lumen communicating with the balloon to inflate and contract the balloon, and the second lumen including a medicine discharge port located between the balloon and one opening of the blood passage to supply medicine to a lesion part of a blood vessel.