baber/WOPTO huggingface dataset:
Patent CA-2067143-A1 (CA)
Title: Position indicating control valve
Inventor: LINDER JAMES C
IPC: F16K37/00
Filed: 1991-08-05
Abstract: A position indicating valve for controlling the flow of fluids includes a flow housing with a valve seat and a valve poppet. A  control housing is provided adjoining the flow housing with a centrally located, nonrotating valve stem having inward and outward ends. The stem is connected to the valve poppet at its inward end and is threaded at its outward end with an intermediate portion being threaded oppositely. An operating handle is rotatably mounted to the control housing with a configured central aperture therethrough into which the threaded outward end of the stem extends. A  configured position indicator and stop is threadably mounted on the outward end of the stem within the aperture and is adapted to actually move inwardly and outwardly of the handle as the handle is rotated. A rotatable coupling is located partially within the control housing and is interlockable with the handle and threadably mounted to and about the stem at the threaded intermediate portion. The coupling is adapted to axially move the stem, the valve poppet and the indicator in the same direction with rotation of the operating handle. The indicator has a greater magnitude of movement than the poppet.
Patent CA-2068573-A1 (CA)
Inventor: LAMBARD JACQUES
IPC: H01S3/07
Filed: 1992-05-13
Abstract: Milieu en verre d'halogénures contenant des fons d'uranium trivalents et procédé de fabrication de ce milieu. Ce milieu est un verre d'halogénures (2, 8, 12, 20) contenant des ions uranium au moins en partie sous la forme U3+ et présentant, au moins en un point d'une région de l'infrarouge proche allant de 2,2 à 3,4 micromètres, une atténuation optique qui n'excède pas 0,01 cm-1. Pour le fabriquer, on prépare un verre d'halogénures contenant des ions uranium, au moins en partie sous la forme U4+ et/ou sous la forme U5+, et présentant au moins en ce point l'atténuation ci-dessus, et on soumet ce verre à un rayonnement ionisant qui est apte à produire des ions uranium trivalents à partir d'ions uranium du verre préparé. Application à la fabrication de guides optiques dont les parties guidantes sont faites d'un tel milieu. Figure 1.
Patent CA-2069575-A1 (CA)
Inventor: GIBBON ROBERT M
IPC: B29C48/00
Filed: 1992-05-26
Abstract: A windshield wiper blade capable of inexpensive manufacture and having good wipe quality comprises approximately 100 parts by weight of a vulcanizable elastomer including at least one silicone polymer, and about 75 to 220 parts by weight of a siliceous filler dispersed in the elastomer. The siliceous filler preferably includes a substantial portion of particles having a relatively large diameter in the range of 5 to 100 microns in order to lower the coefficient of friction of the wiper blade with respect to automotive windshield glass.
Patent CA-2069696-A1 (CA)
Inventor: YAMADA HIROSHI
IPC: A43C15/02
Filed: 1992-05-27
Abstract: Spike pins made of hard rubber which may be used on vehicle tires, shoe soles or the shoes of walking sticks or the like and a system for mounting such spike pins made of hard rubber in a mounting surface such as the tread surface of vehicle tires or shoe soles or the shoes of walking sticks or the like, characterized in that the tread surface is formed with recesses in which each of said spike pin is mounted with a gap between the periphery of the spike pin and the peripheral wall of the associated recess.
Patent CA-2074953-A1 (CA)
Title: Fuel oil additives and compositions
Inventor: MCALEER ANDREW M
IPC: C08L23/08
Filed: 1991-01-31
Abstract: Wax crystal modifiers for fuel oils are derived from ethylene-alpha olefin polymers with terminal unsaturation, preferably obtained by polymerization in the presence of a metallocene catalyst, optionally together with other cold flow improvers.
Patent CA-2075499-A1 (CA)
Inventor: LEMME ANTHONY R
IPC: A23F5/10
Filed: 1991-02-04
Abstract: A combination pressure and vacuum pump for food or drink containers including a pump housing having a pump cylinder therein, a pump head adapted for sealing engagement with a valve stopper on a food or drink container, arid a piston in sliding airtight engagement with the pump cylinder; the pump cylinder, pump head and piston defining a pump chamber. A handle is provided for moving the piston and the pump cylinder relative to one another to pump a gas into or out of the food or drink container. The pump chamber is connected to the valve stopper via a first opening when the pump head is sealed to the valve stopper and to the atmosphere via a second opening through a combination pressure and vacuum valve, the combination valve being switchable from a vacuum position to a pressure position.      A combination pressure and vacuum valve stopper is also shown which includes a valve element reversible between a pressure position and a vacuum position to convert the stopper between pressure and vacuum use.
Patent CA-2079027-A1 (CA)
Title: Increased expression of low molecular weight recombinant polypeptides
Inventor: BELAGAJE RAMA M
IPC: C07K14/60
Filed: 1992-09-24
Abstract: Abstract The present invention provides a method for increasing expression of low molecular weight polypeptides which are produced by recombinant DNA tranformation of prokaryotic host cells.   This invention allows the direct expression of these polypeptides without fusion to an otherwise expressable protein and requires only the addition of a single amino acid to the sequence of the polypeptide product of interest.
Patent CA-2080250-A1 (CA)
Title: Method of diagnosing renal diseases
Inventor: SUZUKI HIROKAZU
IPC: G01N33/68
Filed: 1992-05-22
Abstract: ABSTRACT     A method of diagnosing renal diseases by detecting fragments of albumin in human urine.  The detection of the fragments is carried out by, for example, immunological methods or liquid chromatography techniques.     The method of the present invention is useful for diagnosing various renal diseases and capable of diagnosing the diseases in an earlier stage thereof as compared with conventional diagnosing methods.
Patent CA-2083281-A1 (CA)
Inventor: GHISOLFI GUIDO
IPC: B29C48/10
Filed: 1992-03-26
Abstract: PCT No. PCT/EP92/00670 Sec. 371 Date Dec. 28, 1992 Sec. 102(e) Date Dec. 28, 1992 PCT Filed Mar. 26, 1992 PCT Pub. No. WO92/17522 PCT Pub. Date Oct. 15, 1992.A process for the solid state upgrading of a polyester resin by polyaddition reaction in which the resin is upgraded in the presence of an upgrading additive which is a compound different from a dianhydride of an aromatic tetracarboxylic acid, containing two groups capable of addition reactions with the terminal groups of the polyester, selected for example in the group of the dianhydrides of aliphatic and cycloaliphatic tetracarboxylic acids.
Patent CA-2083480-A1 (CA)
Inventor: CHEN MAO-CHING
IPC: A61B19/04
Filed: 1992-11-20
Abstract: Abstract of the Disclosure A process for making powder-free medical gloves that are nevertheless easy to don involves first forming a glove on a form by successively dip-coating layers of a coagulant containing acid-soluble powder dispersed throughout, an elastomer, and an antiblocking composition with particles distributed throughout. After curing the elastomer and applying a silicone coating, the glove is removed from the form and treated successively with acid, to dissolve the powder, and with bleach, to reduce blocking.  Using this process, high quality natural rubber medical gloves can be produced.
Patent CA-2085363-A1 (CA)
Inventor: PHILLIPS BOBBY M
IPC: D06M101/16
Filed: 1991-06-24
Abstract: Disclosed are coated fibers that are capable of absorbing and spontaneously transporting certain fluids, for example aque-ous fluids, such as water, on their surfaces. The coated fibers are coated with a superabsorbant polymer. The coated fibers, espe-cially in the form of tow, can be incorporated into absorbant articles, such as diapers.
Patent CA-2086017-A1 (CA)
Title: Method and apparatus for crystallizing a mineral substance
Inventor: DARMONT JACQUES
IPC: B01D9/02
Filed: 1991-06-12
Abstract: A method and an apparatus for crystallizing a mineral substance in a fluidized bed of crystals (14) generated by circulating a supersaturated solution of the substance to be crystallized upwards through a fluidized bed reactor distributor (12) located under the bed (14), whereafter a fraction (22) of the supersaturated solution is drawn off upstream from the distributor (12) and recycled downstream therefrom in the fluidized bed (14) or the mother liquor of crystallization, and said mother liquor is supersaturated to recreate the above-mentioned supersaturated solution.
Patent CA-2086022-A1 (CA)
Title: Bag tensioner device
Inventor: SAUNDERS CRAIG M
IPC: A47L9/14
Filed: 1992-12-22
Abstract: BAG TENSIONER DEVICE                 Abstract of the Disclosure A bag securing and tensioning system for a vacuum cleaner includes a duct for directing a flow of dirt-laden air from an inlet thereof to an outlet thereof, a porous outer bag and a connection member for releasably mounting the  outer bag to the  outlet  end of  the duct.    The connection member includes a longitudinally extending slot located in a handle of the vacuum cleaner and a bag guide member including an extension slidably mounted in the slot. A bag clip is secured to the bag guide member.  The bag clip holds an end of the porous outer bag.
Patent CA-2086188-A1 (CA)
Title: Use of hyaluronic acid as ocular prosthesis lubricant
Inventor: SANTOCONO MARCELLO
IPC: A61L27/00
Filed: 1992-12-23
Abstract: use of hyaluronic acid as ocular prosthesis lubricant Abstract The use  of  compositions  comprising  hyaluronic acid  is   described   to  lubricate   a   substitutive prosthesis  of  the  ocular   bulb  to be  fitted   to sub-atrophic or microophtalmic bulbs of eyes.
Patent CA-2086466-A1 (CA)
Title: Optical tape
Inventor: TATE MASASHI
IPC: G11B7/24
Filed: 1992-12-30
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed herein is an optical tape comprising (a) a substrate which has a thickness of not more than 20 µm, satisfies the following formulae (1) to (3) and comprises a polyethylene-2,6-naphthalate layer, and whose surface on one side has center-line average roughness (RaB) of not more than 0.005 µm, and (b) an optical recording layer produced on the surface having the RaB of not more than 0.005 µm.  F5 in longitudinal (machine) direction ? 20 kgf/mm2   (1) Young's modulus in longitudinal (machine) direction ? 600 kgf/mm2     (2) Young's modulus in transverse direction ? 600 kgf/mm2                 (3)
Patent CA-2088160-A1 (CA)
Title: Rotary Compressor
Inventor: YOSHIMURA TAKAO
IPC: F04C29/00
Filed: 1991-05-30
Abstract: The same number of grooves 20 through 27 are provided in end surfaces 19a and 19b of a roller 19.  The grooves 20 through 27 have communicating portions 20a through 27a which communicate with an inner peripheral side of the roller 19 and sealed portions 20b, 20c, 20d, 20e, 20f through 27b, 27c, 27d, 27e and 27f whose cross-sectional area decreases.  Accordingly, the cross-sectional area is decreased in a direction in which a lubricating oil flows, and a plurality of oil pressures can thus be obtained.  This makes a clearance of the roller 19 fixed.
Patent CA-2089309-A1 (CA)
Title: Novel pharmaceutical uses of bilobalide and derivatives thereof and pharmaceutical compositions adapted for such use
Inventor: BOMBARDELLI EZIO
IPC: A61K38/00
Filed: 1993-02-11
Abstract: The invention provides a method of treating an infection in an individual, by administering an effective dose of bilobalide or of a pharmacologically acceptable derivative thereof. Activity against infection with Pneumocystis carinii has major utility in treating AIDS-associated infections. Bilobalide may be administered systemically or topically in accordance with the invention. For systemic use, oral and parenteral routes of administration may be used. Bilobalide is a sesquiterpene of formula
Patent CA-2091023-A1 (CA)
Title: Method of preparing oxide superconducting thin film
Inventor: TORII YASUKO
IPC: H01L39/24
Filed: 1993-03-04
Abstract: ABSTRACT OF THE DISCLOSURE    Provided herein is a method of efficiently preparing a thin film having a higher critical temperature as to an oxide superconducting material containing T?.  A thin film of an oxide containing T? is formed and then heat treated at a temperature of about 850 to 950°C for a short time, and thereafter further heat treated at a temperature, which is lower than the preceding heat treatment temperature, of at least about 750°C for a long time.  The thin film is heat treated in an atmosphere having an oxygen partial pressure of not more than about 0.1 atm.          In formation of a T? superconducting thin film, on the other hand, a 1212 phase layer is reacted with an amorphous Ca-Cu-O layer to form a 1223 phase layer, or a layer containing volatile metal elements (T?, Bi and Pb, for example) and oxygen is reacted with another layer containing other elements than the volatile metal elements to form a superconducting film having a high critical temperature.
Patent CA-2091994-A1 (CA)
Title: Complexes of nitric oxide with polyamines
Inventor: KEEFER LARRY K
IPC: C01B21/24
Filed: 1991-09-20
Abstract: There are disclosed novel complexes of nitric oxide and polyamines which are useful in treating cardiovascular disorders, including hypertension. The disclosed compounds release nitric oxide (endothelium-derived relaxing factor) under pysiological conditions in a sustained and controllable fashion, and possess long mechanisms of action.
Patent CA-2092789-A1 (CA)
Inventor: LOPEZ PIERRE
IPC: H03G3/20
Filed: 1993-03-26
Abstract: DISPOSITIF DE TRAITEMENT DE SIGNAUX SE PRESENTANT SOUS FORME DE PAQUETS L'invention concerne un dispositif de traitement de signaux se présentant sous forme de paquets successifs, transmis dans des intervalles de temps successifs, du type comprenant une chaîne de traitement incluant au moins un élément de traitement à effets secondaires (81, 82) susceptible d'engendrer des perturbations affectant des paquets adjacents. Deux éléments de traitement à effets secondaires au moins (81, 82) sont disposés dans des voies séparées (90, 91) et des moyens de commutation (83, 84) connectent cycliquement les voies séparées, chacune durant un intervalle de temps, et les déconnectent entre temps de façon qu'une voie connectée pour le traitement d'un paquet ne puisse être perturbée par des paquets adjacents, chacun traité par une autre voie. Figure à publier : 6A
Patent CA-2094332-A1 (CA)
Title: Urokinase inhibitors
Inventor: BRIDGES Alexander
IPC: C07D333/58
Filed: 1993-04-19
Abstract: ABSTRACT   Disclosed are benzothiophene and thienothiophene derivatives useful for inhibiting urokinase activity.
Patent CA-2094728-A1 (CA)
Title: Fasteners that bleed fluid upon failure
Inventor: MUN KAM CHONG
IPC: F16B19/04
Filed: 1991-11-19
Abstract: 2094728 9208903 PCTABS00013 A failure indicating device wherein a fluid is encased within a bore in a fastener. In another embodiment of the invention, the fluid (14) is encased within a thin walled capsule (12) which in turn is encapsulated within a bore in the fastener. Upon failure of the fastener, the encased fluid (14) will leak out onto the external surface and its detection will indicate that the fastener has failed. The stress which causes the fastener to fail will also assist the fluid (14) to leak out onto its external surface. To facilitate the leakage of the fluid, one or more shallow and narrow groove(s) (16) may be machined onto the external surface of the fastener so that the leaked fluid will travel along this/these groove(s) (16) to the preferred external end of the fastener. This is desirable in cases where only one side of the joint is accessible.
Patent CA-2096015-A1 (CA)
Title: Process for manufacturing reinforced duroplastic pipes in a centrifugal process and installation for carrying out the process
Inventor: RATHEISER REINHART
IPC: B29C41/04
Filed: 1992-10-20
Abstract: The prodn. in a centrifugal process comprises feeding the resin materials, glass fibres and sand w.r.t. a pref. programme (w.r.t. the pref. construction of tube) into a rotating mould from a carriage which is moved in the longitudinal direction of the tube. The sand is fed continuously from a fixed silo into an intermediate container in the carriage and taken from there into the mould in line with the partic. programme.
Patent CA-2099312-A1 (CA)
Title: Nozzle for the emission of a mixture of water and air for hydromassage, suitable for attachment to a wall of a tub
Inventor: CARLO LEONI
IPC: A61H23/00
Filed: 1993-06-28
Abstract: IMPROVED NOZZLE FOR EMISSION OF A MIXTURE OF WATER AND AIR FOR HYDROMASSAGE, SUITABLE FOR ATTACHMENT TO A WALL OF A TUB   Abstract An inner housing (20) is lodged, with possibility of rotation, within an outer housing (10) fixed to an opening (9) in the tub (8); on the housing (20) is fixed an inner duct (21) facing the tub; with the inner housing (20) is united a tubular member (40) communicating with a first chamber (27) and having its own anterior mouth (41) arranged inside of the inner duct (21);  to the mouth (41) is applied a one-way valve means (44, 45, 46) capable of closing the passage through the mouth (41) when the pressure in the space anterior to the mouth (41) is greater than [that in] the posterior space;  in the duct (21) is placed a tubular obturator (50) having an axial cavity within which is placed the anterior mouth (41) of the tubular member (40) and having an intermediate section (50a) capable, after contact with the outer surface of the intermediate portion (43) of the tubular member (40), of closing off communication between the second chamber (28) and the anterior mouth (22) of the inner duct (21); the obturator (50) is normally held in closure position by elastic means (51) and is capable of undergoing axial displacements due to pressure difference between the spaces upstream and downstream from said intermediate section (50a).
Patent CA-2102209-A1 (CA)
Title: Novel Isoxazole Derivative and Salt Thereof
Inventor: SHINDO TAKASHI
IPC: C07D261/08
Filed: 1992-05-01
Abstract: An isoxazole derivative represented by general formula (I), a salt thereof, a process for the production thereof, an inhibitor for lipoxygenase and cyclooxygenase containing an effective dose of the derivative and a pharmaceutical carrier, and a method of inhibiting lipoxygenase and cyclooxygenase by administering the derivative to a patient. In formula (I) R and R1 may be the same or different from each other and each represents hydrogen, lower alkyl, lower alkoxy or halogen; m represents 0 to 5; A represents -NH-, -O- or a direct bond; B represents -C(=Z)-NH-,-C(=Z)-(CH=CH)1- or -CH=CH-, wherein Z represents oxygen or sulfur, and 1 represents 0 to 2; X represents nitrogen or carbon; n represents 0 to 3; and Y represents hydroxy, lower alkoxy, lower alkoxycarbonyloxy, etc.; provided that m represents 1 to 5 when A represents -NH-.
Patent CA-2104479-A1 (CA)
Inventor: SHARKEY JOHN F III
IPC: B24B19/02
Filed: 1992-02-20
Abstract: Method of and Machine for Grinding a Workpiece Abstract A machine for regrinding grooves of a constant velocity universal joint workpiece is disclosed.  This machine prefer-ably contains a chuck mechanism for holding the various work-pieces of the constant velocity universal joint, an adaptor for mounting the workpiece in the chuck mechanism, 2 rotatable arm for supporting the chuck mechanism, means for controlling the motion of the rotatable arm in accordance with a computer program, a motorized grinding spindle with a grinding bit, a lubricating fluid injection system, and a protective enclo-sure.
Patent CA-2107322-A1 (CA)
Inventor: ESTES JAMES D
IPC: E21B47/08
Filed: 1993-09-29
Abstract: A caliper logging sonde is provided having a plurality of sensing fingers each of which is pivotally mounted to the sonde and movable with respect to the sonde in response to variations in the internal dimensions of a wellbore tube through which the sonde passes. An electrical signal which is proportional to variations in the internal dimensions of a wellbore tube is determined at regular time intervals at a series of points around the circumference of the wellbore tube. A maximum and minimum dimension for each point around the circumference of the wellbore tube during a selected time interval is temporarily stored and thereafter transmitted to the surface at regular intervals. A high density array of sensors is provided by utilizing a transducer plate having a large number of cylindrical apertures disposed around the circumference thereof. Thimble members, each having an internal chamber and an elongate body narrower than the cylindrical aperture are fixedly inserted into one end of each of the detector plate apertures while an associated electrical coil is inserted into each aperture from the other end, surrounding the elongate body. Movable magnetic rods within the internal chamber of each thimble are then variably positioned in response to movement of the sensing fingers and the variable inductance of each electrical coil is then utilized to produce an electrical signal proportional to variations in the internal dimensions of the tube under measurement.
Patent CA-2107482-A1 (CA)
Title: Pool lifter
Inventor: ROBERTS IAN W
IPC: A61G7/10
Filed: 1993-10-01
Abstract: ABSTRACT            A pool lifter includes a base frame which is mountable at or adjacent the side of a swimming pool or spa. A substantially vertical column is provided on the base which is rotatable about its vertical axis, and the column is formed or provided with an elongate vertical slot. A movable carriage is provided within the column and means are provided to move the carriage vertically within that column. The arm extends substantially laterally from the carriage and out through the elongate vertical slot in the column. Seat means are provided at or adjacent the distal end of the arm. The arrangement is such that the carriage moves within the column and the seat means is also moved relative to, such as to be raised above, or lowered into, the water in the pool or spa.
Patent CA-2108461-A1 (CA)
Title: Power amplifier combining network
Inventor: SCHWENT DALE G
IPC: H03F3/21
Filed: 1993-01-11
Abstract: A dual-mode RF signal power amplifier combining network is comprised of two branches, each having a power amplifier (200 and 201). The first branch contains a non-linear mode power amplifier (200) while the second branch contains a linear mode power amplifier (201). The non-linear mode branch also has an RF switch (210).  Both branches are coupled to a common output node (220). The common node (220) is coupled to a filter ( l07) before going to an antenna ( 106). The non-linear mode power amplifier (200) operates when an FM signal is to be amplified, while the linear amplifier (201) is biased in an off state. The linear mode power amplifier (201) operates when a digital signal is to be amplified, while the non-linear amplifier (200) is biased in an off state. The RF switch (210) removes the non-linear amplifier (200) from the circuit to prevent loading the on state linear amplifier (201).
Patent CA-2111711-A1 (CA)
Title: Process for enzymatically preparing enantiomer-free esters and alcohols
Inventor: SCHNEIDER MANFRED
IPC: C07C323/12
Filed: 1991-09-17
Abstract: A b s t r a c t Enantiomerically pure compounds of formula I                                                   (I) in which the substituents R1, R2 and R3 have the meanings stated in the claims, processes for their production as well as their use for producing enantiomerically pure oxiranes, sulfones and racemic sulfoxides.