baber/WOPTO huggingface dataset:
Patent CA-2108669-A1 (CA)
Inventor: FISCHER-REIMANN EVELYN
IPC: G03C1/73
Filed: 1993-10-18
Abstract: Photochromic acridone derivatives, process for their preparation, and their use Abstract Compounds of the formula I                                           (I), in which X and Y are each N or CR6, or X is CR6 and Y is N; R1 is C6-C14aryl which is unsubstituted or substituted by C1-C12alky1, C1-C12alkoxy, C1-C12alkylthio, C1-C12alkylsulfinyl, C1-C12alkylsulfonyl, phenyl, benzyl, phenylsulfinyl, benzylsulfinyl, phenylsulfonyl, benzylsulfonyl -CN, -CF3, halogen, -SO3R7,-CO-R7, -CO2R7, -CON(R8)2 or -N(R8)2. where the phenyl and the phenyl in the benzyl are unsubstituted or substituted by C1-C4alkyl or C1-C4alkoxy, R2, R3, R4 and R5, independently of one afther, are H, -CO2R, or halogen; R6 is H, unsubstituted or C1-C4alkyl-, C1-C4alkoxy-, C1-C4alkylthio-, -CO2R7- orhalogen-substituted C1-C18alkyl, C3-C8cycloalkyl, C6-C14aryl or C7-C20aralkyl, or both R6 radicals together are the CH=CH-CH=CH- group if X and Y are each CR6, where thisgroup is unsubstituted or substituted as defined for R6; R7 is H, C1-C18alkyl, cyclohexyl, cyclopentyl, phenyl, C1-C12alkylphenyl, benzyl or C1-C12alkylbenzyl; and the R8 radicals, independently of one another, are H, C1-C18alkyl, cyclohexyl, cyclopentyl, phenyl, C1-C12alkylphenyl, benzyl or C1-C12alkylbenzyl, or one R8 is H and the other R8 is the -CO-R9 group, in which R9, independently, is as defined for R7, or both R8 radicals together are tetramethylene, pentamethylene, 3-oxa-1,5-pentylene or the radical of the formula -CH2CH2-N(C1-C6alkyl)CH2CH2-.   The compounds are irreversibly photochromic and are suitable as colour indicators, as photoswitchable colour filters or as photosensitizers.
Patent CA-2109253-A1 (CA)
Title: Tower packing
Inventor: BHAGA DAHYA
IPC: B01J19/30
Filed: 1993-10-26
Abstract: ABSTRACT OF THE DISCLOSURE      An improved tower saddle packing having a general shape  that  is  a  segment  of  a hollow torus.    The circumferential  outer edges  of  the  saddle define a plurality of radially, outwardly extending convex lobes. The lobes and wing portions preferably have weep holes to effectual wetting of all surfaces of the saddle.  The hub of the saddle has in one aspect a plurality of apertures extending substantially across the hub.   The saddle provides  improved  gas-liquid  interaction,   permits enhanced gas throughput in an absorption tower and allows for reduced tower packing sections.
Patent CA-2109713-A1 (CA)
Title: Hypodermic needle guard and method to prevent needle stick injuries
Inventor: HAKE LAWRENCE W
IPC: A61M5/32
Filed: 1992-05-22
Abstract: A needle guard and a method to prevent needle stick injuries are disclosed, for use with a hypodermic syringe or other instrument with a sharp point. The needle guard, comprises a protective sleeve (14) with a fitting (16, 116), that may be used with or added to a conventional syringe and needle assembly. The interior of the fitting contains a deformable engagement means (40, 141) adapted to permanently engage the fitting on the syringe barrel (25).  Prior to and during use of the needle (43), the sleeve (14) remains in a retracted position covering the barrel (25) of the syringe. After the needle (43) has been used, the sleeve (14) is pushed forward into its locked extended position, so that the end of the sleeve extends beyond the tip of the needle. The tip of the needle is thereby shielded, preventing accidental sticks.
Patent CA-2110003-A1 (CA)
Inventor: LENDARO JEFFERY BASIL
IPC: H04N5/45
Filed: 1993-11-25
Abstract: A video display system comprises a video display for simultaneously displaying pictures representative of first and second video signals. A synchronizing circuit selectably synchronizes the video display with either one of the first and second video signals. A horizontal synchronizing component is separated from the first video signal and detected by a sensing circuit. A circuit for controlling the selectable synchronizing circuit is responsive to the sensing circuit. The video display is synchronized with the first video signal when the horizontal synchronizing component separated from the first video signal is sensed and is otherwise synchronized with the second video signal.
Patent CA-2110363-A1 (CA)
Title: Packaged balloon and greeting card
Inventor: SCHWAN HOWARD
IPC: A63H27/10
Filed: 1993-11-30
Abstract: LAMINATED BALLOON AND METHOD OF MAKING IT           Abstract of the Disclosure A method of making a balloon includes making a flexible web by imparting an image to one face of a flexible ply, covering that face with a second ply, and securing the two plies together.  The method further includes using that flexible web to form a balloon with two panels secured along their edge portions.  The balloon displays an image which lies buried within a flexible web that forms it.
Patent CA-2112818-A1 (CA)
Title: Mono and bis alkylamino-anthracyclines
Inventor: BARGIOTTI ALBERTO
IPC: A61K31/704
Filed: 1992-07-03
Abstract: An anthracycline glycoside of general formula (1), wherein R1 is hydrogen or methoxy group; R2 is hydrogen or hy-droxy group, A and R both represent hydrogen or one of A and B is hydrogen and the other is hydroxy or a group of formu-la -OSO2R5 in which R5 is C1-C4 alkyl or aryl optionally substituted by C1-C4 alkyl, nitro, amino, methoxy or halogen; R3 is a hydrogen atom or a group of formula (2) and R4 is a group of formula (2): -(CH2)n-X, in which n is 2 or 3 and X is hy-droxy group, a halogen or a group of formula -OSO2R5 in which R5 is as defined above and with the proviso that if R2, X and A are a hydroxy group and R3=H, n must be 3; or a pharmaceutically acceptable salt thereof. Compounds of the in-vention have activity as antitumor agents. Processes for their preparation and pharmaceutical composition containing them are also disclosed.
Patent CA-2112950-A1 (CA)
Title: Method and apparatus for treating female urinary incontinence
Inventor: LOU EK-SENG
IPC: A61B17/00
Filed: 1994-01-06
Abstract: An improved laparoscopic technique for treating female urinary incontinence and devices for use therein.  These devices include an urethral sound, a stapling device, and a staple saw.  The sound is substantially L-shaped having a handle at one end and a probe tip at the opposite end.   The probe tip has a plurality of beads protruding therefrom which are observable through the wall of the bladder enabling the junction between the lower border of the bladder and urethra to be located.  The stapling device attaches the pelvic floor to the pubic bone.  The stapling device comprises of a handle, a stapling head, and an elongated member extending therebetween.   The stapling head is pivotally attached to the elongated member.  A push rod advances a pair of target pins to anchor the pelvic floor to the pubic bone.  A small trigger loads staples into a discharge chamber.   A large trigger discharges staples from the stapling head into the pelvic floor and pubic bone.  The travel of the staple is limited by a stop plate which prevents the staple from being driven through the pelvic floor.  In the event the staple is incorrectly discharged, the staple saw is provided for severing the staples and prying the severed staples apart releasing the pelvic floor therefrom.   The staple saw is comprised of a handle, a hook for grappling the staple, and an elongated member extending therebetween.  A trigger advances a saw blade.  A crank manually drives the saw blade.
Patent CA-2112955-A1 (CA)
Title: Halogenated cinnamic acids and esters tereof, processes for the preparation thereof and halogenated aryldiazonium salts
Inventor: BELLER MATTHIAS
IPC: C07C57/60
Filed: 1994-01-06
Abstract: Abstract of the disclosure The present invention relates to compounds of the formula         (I), in which R1 and R2 are identical or different and are hydrogen or an alkyl radical having 1 to 18 carbon atoms and optionally containing oxygen, nitrogen or halogen, the radicals X, Y and Z are identical and are a fluorine, bromine or iodine atom or if two of the radicals X, Y or Z are identical or all of the radicals X, Y,  Z are different from each other, X, Y and Z are a fluorine, chlorine, bromine or iodine atom. The invention further relates to a process for the preparation of the com-pounds, by reacting an aryldiazonium salt of the formula       (II), in which the radicals X, Y and Z are identical and are a fluorine,  bromine or iodine atom or,  if  two of the radicals X, Y and Z are identical or all of the radicals X, Y, Z are different from each other, X, Y and Z are a fluorine, chlorine, bromine or iodine atom and A(-) is an anion of an acid having a pKa < 7, with a compound of the formula   in which R1 and R2 are identical or different and are hydrogen or an alkyl radical having 1 to 18 carbon atoms and optionally containing oxygen, nitrogen or halogen, in the presence  of  a palladium-containing catalyst,  if appropriate  with  addition  of  a  base,   and  the aryldiazonium salts of the formula (II).
Patent CA-2115881-A1 (CA)
Inventor: PAICE MICHAEL G
IPC: D21C5/00
Filed: 1994-02-17
Abstract: The present invention relates to a process for the bleaching of kraft pulps with non-chlorine chemicals, employing a sequential reaction of oxidative enzymes and hydrogen peroxide. The kraft pulp can be from conventional or extended pulping, or from an oxygen delignification step. The enzyme reaction is monitored by methanol release which results from the demethylation of lignin. The process of the present invention essentially comprises three steps. The first step is the oxidation of kraft pulp either with manganese peroxidase enzyme in the presence of Mn(II) salts, hydrogen peroxide and chelator, or with laccase enzyme preferably in the presence of 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS), or a combination of both enzymes in a crude mixture as typically produced by certain fungi. The Mn(II) salts and chelator may already be present in sufficient amount in the pulp. This first step is performed at an acidic pH, and moderate temperatures for a period of time between 30 and 240 minutes. The two subsequent steps are the removal of metals from the pulp and the alkaline hydrogen peroxide treatment. These steps are performed under standard conditions as known by those skilled in the art. The resulting pulp is surprisingly brighter and of lower lignin content than would be obtained without the enzyme treatment.
Patent CA-2117762-A1 (CA)
Title: Pharmaceutical composition
Inventor: GRATTAN TIMOTHY J
IPC: A61K47/48
Filed: 1993-04-02
Abstract: An ibuprofen-.beta.-cyclodextrin complex for oral consumption in a solution comprising hot water, obtainable by crystallisation from aqueous solution.
Patent CA-2119094-A1 (CA)
Title: Mobile hydraulic conveyor
Inventor: PETTIJOHN MICHAEL J
IPC: B60P1/36
Filed: 1994-03-15
Abstract: An improvement over a prior art mobile hydraulic conveyor apparatus which is mounted on the rear end of a truck for both vertical and lateral pivoting, as well as vertical storage for transport to different locations. The apparatus is moved vertically by a block and tackle arrangement under hydraulic control. Lateral pivoting is achieved by activation of a pair of hydraulic cylinders which act on the conveyor apparatus to shift the apparatus laterally about a pivot axis extending centrally through a turret connected to the conveyor apparatus and mounted on a turret holder which in turn is pivotally mounted on the rear end of the truck. The turret holder includes a c-ring which is mounted in a circumferential groove formed on the turret. The conveyor apparatus includes two pivotally connected trays which support a hydraulically driven belt which transports material dispersed from the truck to a selected location. During transport the trays may be pivoted upwardly in a folded position by providing hydraulic power to the block and tackle arrangement. The rear end of the truck includes a slidable panel which is hydraulically lifted to enable material carried by the truck to flow onto the conveyor apparatus. The trays may be moved from a folded position to an unfolded position by links connected to the trays actuated by at least one hydraulic cylinder connected to one of the trays and to the links.
Patent CA-2119116-A1 (CA)
Title: Melange a dessert en gel a prise rapide
Inventor: HEMBLING MARK V
IPC: A23L29/256
Filed: 1994-03-15
Abstract: Mélange sec pour produire un gel à prise rapide d'une texture aussi souhaitable que les gels de gélatine. Le mélange contient comme composants du potassium aggloméré ou de l'alginate de sodium, du sel de calcium aggloméré, des agents édulcorants, des acides alimentaires, des tampons et de préférence anti-oxydants. Les agents édulcorants peuvent être des sucres, des édulcorants intenses et/ou des amidons hydrolysés.
Patent CA-2120204-A1 (CA)
Title: Electronic seal
Inventor: HAYWARD GILBERT O
IPC: G09F3/03
Filed: 1994-03-29
Abstract: An electronic seal comprises a housing (12), a cord (14) with one end fixed to the housing (12) and a free end which can be passed through a door catch or the like and releasably connected to the housing (12), an electronic circuit within the housing (12) arranged to generate one of a number of unique codes when a switch (70) in the housing (12) is actuated on connection or disconnection of the cord (14) to or from the housing (12) and a display device (18) which can display the unique code.  The cord (14) has a series of regularly spaced enlargements (36), and the interior of the housing (12) has a plurality of teeth (40) arranged so that when a length of cord (14) at its free end is inserted into the housing (12) the enlargements (36) can fit between the teeth (40) to hold the cord (14) against withdrawal from the housing (12).  A slide (16) is movable in the housing (12) between an open position in which the cord (14) can be inserted into and withdrawn from the housing (13) and a locking position in which it retains the enlargements (36) in engagement with the teeth (40). The switch (70) has an actuating member (72) projecting into the space between two of the teeth (40), so that the switch is actuated when the length of cord (14) is moved into or out of engagement with the teeth (40). The fixed end of the cord (14) is connected permanently to the housing (12) by engagement of enlargements (36) on the cord (14) with a further set of teeth in the housing (12). The card (14) is held in engagement with the further teeth by the slide (16), when the slide (16) is in the open or locking position. The slide (16) is movable from a third position in which the fixed end of the cord (14) can be inserted into the housing (12) before the seal is first used, but is then prevented from being moved back to the third position.
Patent CA-2126343-A1 (CA)
Title: Process for preparing ultrafine aluminum nitride powder
Inventor: WEIMER ALAN W
IPC: C01B21/076
Filed: 1992-12-09
Abstract: Rapidly heat powdered aluminum, an admixture of powdered aluminum and a compatible solid material, a powdered admixture of alumina and carbon, or aluminum nitride powder having a surface area lower than desired in the presence of a source of nitrogen at a temperature of 2473 to 3073 K to produce aluminum nitride, then promptly quench the aluminum nitride product. The product has a surface area of greater than 10 m2/g, preferably greater than 15 m2/g.
Patent CA-2127377-A1 (CA)
Title: A method for the acidic conversion treatment of aluminum containing metal
Inventor: ASAI YASUO
IPC: C23C22/34
Filed: 1992-12-31
Abstract: The invention is a method for the accurate control of the conversion film thickness produced on aluminiferous metal mate-rials by fluorine-containing acidic conversion treatment baths; and a simple method for determining the EFC value (Effective Fluorine Concentration). The EFC value is determined by potentiometric titration of a fluorine-containing acidic conversion treatment bath having pH < 4 without prior pH adjustment using a fluorine ion electrode as indicator electrode. The titrant is an aqueous solution containing the Al ion, La ion, Y ion, Zr ion, Ga ion, Ce ion, or Be ion, an inflection point in the potential curve is used as an indication of the activity of the conversion treatment bath.
Patent CA-2127717-A1 (CA)
Title: A method of treating laminated objects of plastics
Inventor: CEDERSTROEM ROLF
IPC: B63B81/00
Filed: 1993-11-09
Abstract: A method of treating laminated objects of plastics that have been damaged by osmosis or the like and which contain liquids and/or gases within laminate layers. Particularly within the damaged area the object is given such a temperature by controlled heating, that liquids are evaporated and gases are expanded in such a manner that covering layers are broken up and the damaged portion is exposed but also in such a manner that the damaged portion is not enduringly heated to a temperature exceeding 300 ·C. Preferably the heating is combined with exertion of a mechanical force against the object in way to remove the material which has been loosened due to the heating.
Patent CA-2128660-A1 (CA)
Inventor: BERGER J LEE
IPC: A61F5/37
Filed: 1994-07-22
Abstract: ABSTRACT      A surgical hand support apparatus comprising a base block with a finger securing assembly comprising two uprights slidably mounted on tracks defined in the base block, a cross member connected to the uprights. A thumb securing assembly is also slidably mounted to the base block, the thumb securing assembly comprising a standard support member secured to the base block and a hook shaped rod mounted in the standard support member, the standard support member defining a slot through which a post extending from the side of the base block allowing the standard support member and associated hook shaped rod to be reciprocated for selective positioning around the thumb of the patient. A wrist securing assembly, is incorporated comprising a plurality of brackets slidably mounted to the base block and a cylindrical cross bar defining a plurality of instrument receiving holes is mounted to the uprights. A lock screw is connected to the cylindrical cross bar to lock the cross bar in place to secure the wrist of the patient and allow selective positioning of surgical instruments with respect to the hand.
Patent CA-2129211-A1 (CA)
Title: Conveying apparatus
Inventor: KISSEE DARRELL E
IPC: F16D1/08
Filed: 1994-07-29
Abstract: A conveying apparatus includes first and second shafts each having a sprocket mounted thereon for rotation with the shafts.      A conveyor belt is engaged with the sprockets. A retaining clamp is mounted on one of the shafts adjoining one of the sprockets.      The retaining clamp includes a body shaped to fit loosely around the shaft and a force-applying member disposed on the body for pressing the body against the shaft to prevent movement of the body along the shaft.
Patent CA-2130080-A1 (CA)
Inventor: LEVINSON MELVIN L
IPC: A23L5/10
Filed: 1991-02-18
Abstract: A two-stage process for baking/crusting food products is proposed. The First Stage is carried out in a microwave oven chamber (10); the Second Stage is carried out beneath a gas or electric broiler (32). In both stages, the food is placed on a brown-ing/crusting device (16) which provides a metal cooking surface (17), heated by adherent microwave lossy material (18) or on a smooth surface (45) of one or more blocks of microwave lossy ceramic (43) or microwave lossy igneous rock (40) which is sup-ported in a metal tray (44a). In the first stage, a First Stage kit (30) includes a microwave transparent cover (24), a microwave transparent thermal insulating support (12) and the browning/crusting device (16). In the Second Stage, only the browning/crust-ing device (16) is used to complete the overall process. The browning/crusting device (16) is pre-heated in a microwave oven (11) to achieve an elevated browning/crusting temperature before applying food to the browning/crusting device (16).
Patent CA-2130623-A1 (CA)
Title: Adjustable steering column assembly for a vehicle
Inventor: TOUSSAINT HERVE
IPC: B62D1/184
Filed: 1994-08-22
Abstract: ABSTRACT ADJUSTABLE STEERING COLUMN ASSEMBLY FOR A VEHICLE An adjustable steering column for a vehicle having a steering column includes adjustment means, for example a clampable mechanism, to allow for reach adjustment of the steering column and for clamping the column at a desired reach position. Energy absorption means are provided to absorb energy upon collapse of the steering column in a crash situation, there being a resilient-loaded pawl and ratchet mechanism associated with the adjustment means, acting as a primary means in the crash situation to transfer energy from the column to the energy absorption to transfer energy from the column to the unclamp the adjustment means and to bring the pawl and ratchet mechanism into and out of engagement.
Patent CA-2133424-A1 (CA)
Title: Sensor and system for physiological monitoring
Inventor: PLATT HARRY L
IPC: A61B5/0408
Filed: 1993-04-02
Abstract: A patient (1) is provided with a sensor patch (2) which is worn on the skin of the chest of the patient. The sensor patch (2) includes a central structural support member (8) formed of a flexible, but rigid, plastics material. The structural member (8) is surrounded by an adhesive gel (9) which is preferably a hydrogel compound. The patch (2) is provided with a number of electrodes (10), for example four, which are positioned on the gel (9) so as to contact the skin of the patient (1) when the gel (9) adheres to the skin. The electrodes (10) are either metallic, such as stainless steel, or formed of a silver chloride compound and are electrically connected by connections (11) to an electronic package (12), which includes a power supply, circuitry for receiving ECG  signals from the electrodes (10), for conditioning the signals to provide a conditioned signal and a short range radio transmitter to transmit the conditioned signal to the portable monitor unit (3) which is nearby. The portable monitor unit (3) includes circuitry for interfacing with a telephone line (4) to send the ECG data signals to a central monitoring station (5) by the telephone line (4). The portable unit (3) preferably also has monitoring circuitry for monitoring the incoming ECG data signal to determine whether there is any abnormality and to alert the patient if an abnormality in the ECG data signal is detected. The central monitoring station (5) includes a part (6) that decodes the ECG data signals received from the portable unit (3) via the telephone line (4) and performs beat and rhythm analysis for classification of the ECG  data. Periodically, data is reviewed by a professional skilled in the field and a report generated (7).
Patent CA-2133956-A1 (CA)
Title: Dna sequencing method
Inventor: ROSENTHAL ANDRE
IPC: C12Q1/6869
Filed: 1993-04-22
Abstract: There is disclosed a method for determining the sequence of a nucleic acid comprising the steps of: a) forming a single-stranded template comprising the nucleic acid to be sequenced; b) hybridizing a primer to the template to form a template/primer complex; c) extending the primer by the addition of a single labelled nucleotide; d) determining the type of the labelled nucleotide added onto the primer; e) removing or neutralizing the label; and f) repeating steps (c) to (e) sequentially and recording the order of incorporation of labelled nucleotides. There is also disclosed apparatus for carrying out the method.
Patent CA-2134580-A1 (CA)
Inventor: CHUNG YUN C
IPC: H04B10/00
Filed: 1994-10-28
Abstract: A method for synchronizing an etalon to a preselected set of optical frequencies includes the step of generating a transmission spectrum for an etalon having a characteristic free spectral range that is a function of its effective length.  The optical frequencies for the transmission spectrum are provided by two optical reference frequencies such as produced by a first and second frequency locked laser.  The effective length of the etalon is set in relation to the optical reference frequencies.