baber/WOPTO huggingface dataset:
Patent CA-2056814-C (CA)
Title: Benzoxazinone and benzothiazinone derivatives endowed with cardiovascular activity
Inventor: SALA ALBERTO
IPC: C07D265/22
Filed: 1991-12-05
Granted: 1997-01-14
Abstract: Benzoxazinone and benzothiazinone derivatives of formula                              I     wherein    R    represents    hydrogen,    (C2-6)alkyl, (C5-7)cycloalkyl, phenyl, substituted phenyl; R1 and R2 independently represent hydrogen, halogen, (C1-4)alkyl, (C1-4)alkoxy or trifluoromethyl; X is oxigen or sulfur;          Y is (C2-6)alkylene or (C5-7)cycloalkylene; and salts therewith of pharmaceutically acceptable acids.   The compounds possess cardiovascular activity with high specificity for the coronary district.
Patent CA-2062163-C (CA)
Title: Release mechanism for spin-stabilized self-propelled missiles
Inventor: STEELE MICHAEL F
IPC: F41F3/048
Filed: 1992-03-02
Granted: 1994-08-02
Abstract: A release mechanism for facilitating launching a spin-stabilized self-propelled missile, which includes a rotary missile support and a launching support for support-ing the rotary missile support for rotation about a spin axis and for movement axially of the spin axis.  A nozzle assembly extends between the rotary missile support and the missile coaxial with the spin axis.  A separable portion of the nozzle assembly moves axially in an aft direction under the influence of exhaust gases expelled by the missile. The separable portion strikes an abutment on the rotary missile support to effect rapid movement of the rotary missile support axially away from the missile on separation of the separable portion of the nozzle assembly.   A low friction bearing is provided for engagement by the rotary missile support at its aft limit position of travel away from the missile to reduce spin momentum induced forces caused by the rotary missile support.  Another low friction bearing surrounds the rotary missile support between the support and the launching support to further reduce spin momentum  induced forces.   A time release mechanism is provided for preventing aft movement of the rotary missile support during a given number of initial revolutions and for releasing the rotary missile support to  allow aft movement thereof after the given number of initial revolu-tions.   A prescribed clearance is provided between the missile  and  the  launching  support  to  prevent  post-separation collisions between the missile and the launching support.
Patent CA-2062326-C (CA)
Title: Aqueous polyurea dispersions prepared by an emulsion polymerization process
Inventor: TIRPAK ROBIN E
IPC: C08G18/50
Filed: 1992-03-05
Granted: 2003-05-13
Abstract: The present invention is directed to a process for the preparation of an aqueous polyurea dispersion by a) dispersing in water at an NC0:NH equivalent ratio of 0.5:1.0 to 2.0:1.0 i) a polyisocyanate which has an average functionality of 1.5 to 4.0 and an isocyanate content of at least 12% by weight and ii) a polyamine having at least two primary and/or secondary amino groups and a molecular weight of at least at an NCO:OH equivalent ratio of 0.5:1.0 to 2.0:1.01000 and b) allowing the polyisocyanate and polyamine to react to form an aqueous polyurea dispersion.      The present invention is also directed to the aqueous polyurea dispersion prepared by this process.
Patent CA-2063444-C (CA)
Title: Differential pressure transducer
Inventor: VAN FOSSEN ROBERT ARTHUR
IPC: G05D16/00
Filed: 1991-05-10
Granted: 1996-04-23
Abstract: A differential pressure sensor comprising a housing forming a high pressure chamber (20), a nozzle (14) mounted on the housing at one end of the chamber, a diaphragm (24) mounted in the chamber to form a low pres-sure chamber (25) in the nozzle, a spring retainer in the high pressure cham-ber, a spindle connected to the diaphragm (24), a tension spring (22) connect-ing the spindle to the spring retainer, a circular magnet (58) mounted on the spindle and a transducer (90) mounted on the housing to sense the position of the magnet (58).
Patent CA-2064794-C (CA)
Title: Disposable gas generator cartridge and vessel therefor for use in a beverage dispenser
Inventor: PLESTER GEORGE
IPC: B67D1/04
Filed: 1991-06-27
Granted: 2000-05-02
Abstract: A disposable CO2 gas generator cartridge of cylindrical construction anal including inner (3) and outer (2) coaxial reagent chambers which are interconnected when installed in a cylindrical pressure vessel and having a top cover assembly (23) including a pusher type activating mechanism (20) which is operated by a cam surface located on a handwheel. The cover assembly connects to a carbonated drink dispenser by means of a quick disconnect coupling activated by the operation of a manually operated pull down lever assembly including the handwheel. Operation of the handwheel acts to start gas generation and also vent the cartridge to atmosphere when spent.
Patent CA-2067975-C (CA)
Title: Buffered matrix aspirin tablet
Inventor: BLASE CYNTHIA M
IPC: A61K9/36
Filed: 1992-05-04
Granted: 2003-01-14
Abstract: A buffered aspirin tablet composed of a uniform mixture of aqueous-based polymer coated aspirin, a buffering system and a hydrophillic gel-forming matrix material. The buffering system and matrix material provide a microenvironment on in vitro dissolution of about pH 5. The tablet does not require the use of multilayers and may be prepared by direct compression with conventional equipment.
Patent CA-2072891-C (CA)
Inventor: PASTAN IRA
IPC: C07K19/00
Filed: 1990-12-27
Granted: 1999-12-21
Abstract: Exotoxine de Pseudomonas, cytotoxique, recombinée spécifique à une cible. Lesdites toxines sont obtenues par insertion de molécules de reconnaissance spécifiques sur des sites de clonage spécifiques, dans au moins le domaine III au niveau de la terminaison carboxyle de la molécule PE. Diverses modifications de la terminaison carboxyle de la molécule PE augmentant la cytotoxicité, sont présentées.
Patent CA-2080693-C (CA)
Inventor: EISENBERG MARK
IPC: A61K35/12
Filed: 1991-04-24
Granted: 2001-11-27
Abstract: A composite living skin equivalent is described comprising an epidermal layer of cultured keratinocyte cells, a layer of non-porous collagen, and a dermal layer of cultured fibroblast cells in a porous cross-linked collagen sponge matrix. Preferably the non-porous collagen is Type 1, Type 3 or mixtures of Types 1 and 3 bovine collagen, which has been pepsin treated. A process for preparing the skin equivalent is described, as well as a test kit for in vitro testing of the skin equivalent. The skin equivalent has use for skin grafting as well as in vitro testing of the effects of various substances on skin.
Patent CA-2080821-C (CA)
Inventor: DAVIS ROBERT BERNARD
IPC: D04H1/4334
Filed: 1992-02-17
Granted: 1996-11-26
Abstract: This invention relates to paper machine clothing and has particular reference to paper machine clothing suitable for use in the forming, pressing and drying sections of a papermaking machine and comprises a monofilament and/or staple fibre in which the monofilament or staple fibre comprises a polyamide material which has been subjected to a treatment with an aqueous solu-tion of aldehyde in the presence of a catalyst to effect partial cross-linking of the polyamide to provide a gel content thereof with-in the range of 0.1-75 %.
Patent CA-2084434-C (CA)
Title: Heating assembly for a die-casting machine
Inventor: BANDYOPADHYAY SREKUMAR
IPC: B22D17/20
Filed: 1992-12-03
Granted: 1998-05-19
Abstract: A nozzle body of stainless steel surrounded by a single layer of turns of a strip electrical heater interconnects a die caster and a sprue of a cluster of casting cavities in a die casting apparatus.  The heating element is surrounded by a protective tube and the ends of the gap between the protective tube and the nozzle body are closed by annular members.
Patent CA-2088133-C (CA)
Title: Process for the production of mgcl2, mgo of restricted granulometric spectrum. application of said compound as support for the catalytic component of olefin polymerization
Inventor: SPITZ ROGER
IPC: C08F4/614
Filed: 1993-01-26
Granted: 2000-07-18
Abstract: Process for the manufacture of (MgCl2.MgO) of narrow particle size distribution by treatment of hydrated MgCl2 with an alcohol followed by a heat treatment after partial removal of the alcohol, characterised in that the hydrated MgCl2 is suspended in the alcohol, the alcohol to hydrated MgCl2 molar ratio being less than the solubility ratio of these two bodies at the temperature of the suspension. The MgCl2.MgO obtained can be used as a support in the catalytic components for the polymerisation of olefins.
Patent CA-2090972-C (CA)
Title: Supported monocyclopentadienyl transition metal olefin polymerization catalysts
Inventor: CANICH JO ANN MARIE
IPC: C08F110/06
Filed: 1991-09-13
Granted: 2001-04-24
Abstract: A supported catalyst system comprises in inert support material, a Group IV B  transition metal component and an alumoxane component; it may be employed to polymerize olefins to produce a high molecular weight polymer.
Patent CA-2095001-C (CA)
Title: Adjustable mounting mechanism for an optical filter screen
Inventor: THEIRL SCOTT G
IPC: G09F9/00
Filed: 1993-04-27
Granted: 2003-06-24
Abstract: An optical filter screen for a visual display monitor includes an optical filter supported by a support frame. A pair of adjustable mounting members support the support frame from the visual display monitor such that the optical filter is positioned adjacent a display area of the display monitor. Each mounting member includes a latch member that is movable between an unlatched state wherein the filter can be moved relative to the display area of the display monitor and a latched state wherein the filter is held in a desired position relative to the display area. Each mounting member further includes a movable latch operator for moving the latch member between the latched state and the unlatched state.
Patent CA-2100803-C (CA)
Title: Apparatus for flanging containers
Inventor: LEE HARRY W JR
IPC: B21D19/04
Filed: 1993-07-19
Granted: 1995-11-07
Abstract: A  flanging  head  assembly  having  a  cluster  of  freely rotatable spin flanging rollers includes a stop ring against which the flange hits during the final flange forming stages to limit the flange to a specific diameter.  To prevent the flange from entering the crack formed between the rotating roller and the stationary stop ring, there is provided a step spacing the stop ring surface from the roller forming surface.   In this manner, as the terminal edge of the flange slides around the flanging roller during final forming, it will pass over the crack and across the step to lodge in a corner formed between the step and stop ring surface.  In a preferred embodiment, the step is a conical surface extending from the stop ring surface in a direction away from the can bottom.  This conical surface extends radially inwardly a sufficient distance to contact unsupported flange portions between the flanging rollers to limit the degree of elastic sagging of these portions.
Patent CA-2101318-C (CA)
Inventor: CHRISTENSEN JORGEN STEEN
IPC: F26B21/00
Filed: 1992-02-06
Granted: 2003-09-16
Abstract: Method for the production of hot drying gas by the burning of flowable, biological refuse in an in-cinerator (1) which comprises a vertical cyclone fur-nace (2), into which there is an injection of fuel (6) tangentially together with the primary combustion air, secondary combustion air (7) and tertiary com-bustion air (8) which is injected into a throat (5). In the bottom of the furnace there is provided a cooled, rotating ash scraper (11). The waste gas is conducted via a throat (5) to a secondary combustion chamber (3) in which an incineration of residuals takes place, and from which the drying gas (4) is removed. Com-bustion-retarding air (9) is injected into the hottest area of the cyclone furnace (2), so that sintering and the formation of slag is avoided.
Patent CA-2101701-C (CA)
Title: Apparatus and method for separating solid particles from liquids
Inventor: COBB DELWIN E
IPC: E21B43/38
Filed: 1993-07-30
Granted: 2001-04-17
Abstract: Apparatus and method for separating solid particles from well fluids in the bore hole including a separator or separation device (34) adjacent the lower end of a tubing string (14) positioned within a perforated casing (10). The separator device (34) includes concentric tubular members (44, 46) defining an annulus (60) therebetween. A spiral guide (62) is positioned in the annulus (60) about the inner tubular member (46) below perforations (54) in the outer tubular member (44) and extends about the inner tubular member (46) for around a complete turn or 360 degrees. A helical motion is imparted to the well fluids received through the perforations (54) and solid particles settle downwardly within the vortex or swirl chamber (79) below the inner tubular member (46). The liquid separated from the solid particles is pumped by a downhole pump (18) upwardly through the inner tubular member (46).
Patent CA-2104249-C (CA)
Title: Image data conversion processing device and information processing device having the same
Inventor: NAKAMOTO MAKOTO
IPC: H04N5/44
Filed: 1993-08-17
Granted: 2001-03-06
Abstract: An image data conversion processing device including an issue unit (8), plural line storing units (3) and a generating unit (4) for converting to a television signal image data stored in plural kinds of developing formats in a storing unit. The image data comprises plural lines, and the television signal comprises a predetermined number of lines. The issue unit issues a transmission instruction of image data to the storing unit in accordance with a period specified by a ratio of the line number of the image data to be converted and the line number of the television signal. The plural line storing units cyclically stores the image data transmitted from the storing unit line by line on the basis of the transmission instruction of the issue unit. In synchronism with the horizontal synchronizing signal of the television signal, the generating unit multiplies the image data stored in the line storing unit by an interpolative coefficient corresponding to the developing format of the image data to be converted in the plural interpolative coefficients which are beforehand set for the plural kinds of developing formats, thereby generating the television signal.
Patent CA-2107000-C (CA)
Title: Ladder stiles and ladders produced therefrom
Inventor: WOODFIELD BRUCE HARVEY
IPC: E06C7/10
Filed: 1992-03-26
Granted: 2001-01-23
Abstract: The invention is directed to strong, lightweight, electrically non-conducting ladder stiles (20) and ladders formed therefrom. Each ladder stile (20) comprises a tension (24) and compression portion (22) structurally interconnected by a spacing portion (26). The spacing portion (26) has a cross section which varies over the length of the stile (20) between sections where the entire spacing portion (26) is the full width of the stile (20) and sections where at least part of the spacing portion (26) is less than the full width of the stile (20). The ladders of the invention are formed of two ladder stiles (20) interconnected by rungs.
Patent CA-2107961-C (CA)
Title: Injectable mesna solutions
Inventor: ENGEL JURGEN
IPC: A61K9/08
Filed: 1993-10-07
Granted: 2003-03-25
Abstract: Storage-stable injectable mesna solutions with a pH value higher than 7.5 are described together with a method of manufacture. At this pH, mesna (HS-CH2-C2-SO3Na) is stable and is thus more readily useable for example in protecting the urinary organs in the treatment of tumour diseases with ifosfamide.
Patent CA-2111017-C (CA)
Inventor: VANNBY RICKARD
IPC: C01B32/40
Filed: 1993-12-09
Granted: 2000-11-07
Abstract: A process is provided for the preparation of carbon monoxide-rich product gas. The process includes reacting a gas feed of hydrogen and carbon dioxide which has been preheated to a temperature between 400°C and 650°C in a molar H2/CO2 ratio of between 1.5 and 6.5 in the presence of a reforming catalyst at a pressure between 5 and 50 bar to carbon monoxide-rich gas. The process additionally comprises reacting part of the carbon dioxide and hydrogen in the gas feed exothermically to methane simultaneously with the carbon monoxide-producing reaction, and carrying out both reactions under adiabatic conditions. In this way, the exothermic methane-producing reaction provides heat which is necessary for the endothermic carbon monoxide-producing reaction. The outlet temperature of the carbon dioxide-rich product gas is higher than the temperature to which gas feed is preheated.
Patent CA-2113603-C (CA)
Inventor: GOTO GIICHI
IPC: A61K31/44
Filed: 1994-01-17
Granted: 2006-11-28
Abstract: A novel compound of the formula:   (see formula I) wherein Ar represents an optionally substituted tricyclic condensed benzene ring group which includes at least one heterocyclic ring as a component ring; n represents an integer from 2 to 10; R1 represents H or an optionally substituted hydrocarbon group, which may be different from one another in the repetition of n; and Y represents an optionally substituted 4-piperidinyl, 1-piperazinyl or benzyl-1-piperidinyl group, or a salt thereof, inhibiting excellent cholinesterase inhibitory activity and monoamine reuptake inhibitory activity, thus being useful as therapeutic and/or prophylactic medicaments of senile dementia.
Patent CA-2115660-C (CA)
Inventor: ARITA TAKENORI
IPC: C06B23/00
Filed: 1993-06-15
Granted: 1998-06-23
Abstract: An explosive composition in which the explosive reactive component is adsorbed and held on the surfaces of and between the organic hollow microspheres, and a method of producing the same.
Patent CA-2117406-C (CA)
Title: Temperature controlled electrical receptacle
Inventor: PATRICK DARCY
IPC: H01R13/70
Filed: 1994-07-25
Granted: 2000-05-09
Abstract: A temperature responsive electrical receptacle has a housing with slots for receiving prongs of an electrical plug, electrical contacts in the housing adjacent each slot for engagement with a prong and a terminal associated with each contact for connecting each contact to an electrical conductor, a switch between one of the contacts and its associated terminal and a temperature sensor for closing the switch when the ambient temperature is at or below a predetermined set temperature and opening the switch when the ambient temperature is above the set temperature.
Patent CA-2117567-C (CA)
Inventor: JOHANSSON OLA M
IPC: B02C7/12
Filed: 1994-08-24
Granted: 1998-11-24
Abstract: In a refiner having ribbed refining disks to form a refining zone between such disks, the refining spaces of such disks including radial ribs forming grooves between them, which grooves are blocked at intervals by dams connecting the ribs at opposite sides of the grooves, intergroove slots connect neighboring grooves in a disk in an arrangement to provide venting passages for steam through the grooves forming zigzag courses which bypass the refining zone between the refining disks.  The slots can be spaced apart progressively greater distances radially inward to favor flow of steam toward the periphery of the disk or radially outward to favor flow of steam toward the center of the disk.  Alternatively or additionally, a slot closer to the periphery of the disk can be larger than a slot farther from the periphery of the disk to favor flow of steam toward the periphery of the disk, or a slot closer to the center of the disk can be larger than a slot closer to the periphery of the disk to favor flow of steam toward the center of the disk.
Patent CA-2120630-C (CA)
Inventor: WHITEHOUSE RONALD L S
IPC: A61C17/08
Filed: 1994-03-30
Granted: 2005-11-29
Abstract: A method of preventing a back flow of oral contaminants in a low volume suction line of a dental saliva ejector is described. This method consists of the single step of placing a vacuum release aperture through a tubular sidewall of a saliva ejector tip. The aperture is spaced from a mouthpiece of the saliva ejector tip such that when the mouthpiece is inserted into a patient's mouth, the patient's mouth will not block the aperture.
Patent CA-2122343-C (CA)
Inventor: SUGAHARA KAZUKO
IPC: A61F13/49
Filed: 1992-11-06
Granted: 1999-03-23
Abstract: An absorbent article such as a sanitary napkin, having an improved topsheet that provides improved skin comfort as well as superior fluid handling characteristics. Such absorbent articles comprise a main body portion preferably comprising a liquid previous topsheet, a liquid impervious backsheet, and an absorbent core position ed between the topsheet and the backsheet. The main body portion has longitudinal edges and lateral edges. The topsheet has a central zone and a pair of end zones extending laterally outwardly from and contiguous with the central zone. The topsheet com prises a nonwoven outer layer and an apertured thermoplastic film layer. The nonwoven outer layer has an opening in the centra l zone. The apertured thermoplastic film layer is positioned beneath the nonwoven outer layer so that the apertured thermoplastic film layer and the nonwoven outer layer covers the end zones while the apertured thermoplastic film layer is expos ed through the opening of the nonwoven outer layer in the central zone.
Patent CA-2125189-C (CA)
Inventor: PANDEY RAVINDRA K
IPC: C07D519/00
Filed: 1993-01-07
Granted: 2005-03-22
Abstract: Pyropheophorbide compounds are injected into a host and accumulate in tumor tissue to a higher degree than surrounding normal tissues. When the pyropheophorbide compounds are exposed to a particular wavelength of light the compounds become cytotoxic and destroy the tumor or diseased tissue without causing irreversible normal tissue damage. The pyropheophorbide compounds have shown improved results as compared to drugs currently used in photodynamic therapy. Further, they absorb light further in the red, optimizing tissue penetration and are retained in the skin for short time periods relative to other drugs used in photodynamic therapy.
Patent CA-2126756-C (CA)
Title: Method for determining the short-circuit inductance of an asynchronous machine
Inventor: HEIKKILAE SAMULI
IPC: G01R31/34
Filed: 1992-12-21
Granted: 2000-02-08
Abstract: The invention relates to a method of determining a short-circuit inductance in an asynchronous machine. To enable the de-termination of the snort-circuit inductance even during the operation of the machine, the method comprises the steps of causing a step change in the stator voltage (u s); measuring both the stator voltage (u s) and the stator current derivative (~~) both before and after said step change in the stator voltage; determining the difference between the measured stator voltages (u s(t ~), (u s(t ~)) and the difference between the measured stator current derivatives (i s,(t~), (~ s(t ~)); and determining the quotient of the difference between the stator voltages and the difference between the stator current derivatives for obtaining a short-circuit inductance (~~~).
Patent CA-2128590-C (CA)
Inventor: ZINCK JENNIFER J
IPC: C30B29/48
Filed: 1994-07-21
Granted: 1998-08-25
Abstract: A metalorganic arsenic source comprising R3-mAsHm, where R is an organic radical selected from the group consisting of CnH2n+1 and CnH2n-1, where n ranges from 1 to 6, and where m is 1 or 2, such as tert-butylarsine (t-BuAsH2), is useful in terminating a silicon surface with arsenic without carbon contamination, thereby permitting subsequent growth of high quality II-VI films, such as ZnSe.  Use of this metalorganic arsenic source allows the full potential of the metalorganic molecular beam epitaxy (MOMBE) deposition technique, which has demonstrated superior flux control than that achieved by MBE, to be realized in the heteroepitaxy of HgCdTe on silicon substrates.  Other metalorganic deposition procedures, such as MOVPE, may also be employed in the practice of the invention.