baber/WOPTO huggingface dataset:
Patent NO-165163-C (NO)
Inventor: REUTER INGOLF
IPC: E21C37/12
Filed: 1988-08-04
Abstract: The present invention discloses a cartridge (1) for expelling liquids under high pressure. To this end, the cartridge (1) has as essential constructional element a sabot (4) which is arranged axially between a propellant-charge chamber (2) and a liquid chamber (3). Attached by positive or non-positive connection to the plane end face (7) of the sabot (4) is a closing element (21) which is separated axially from the sabot (4) by means of the pressure of the liquid flowing into the liquid chamber (3) and which is displaced forwards towards the barrel muzzle. Both the sabot (4) and the closing element (21) lie sealingly against the inner walls of the barrel (15) and the cartridge case (13) respectively. When the propellant charge (27) is ignited, the sabot (4) drives a water column, together with the closing element (21), into drill holes of a roadway core of a roadway drivage and thereby causes the rock of the roadway core to be comminuted. 
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Patent NO-165615-C (NO)
Inventor: BOEE EINAR
IPC: E21B49/08
Filed: 1988-09-29
Abstract: A sample container (1) especially for oil/gas samples consists mainly of a spherical body formed of two half parts (2, 3) with a metal membrane (4) fixed between the flanges of the two half parts. The membrane has a configuration complementary to the configuration of each half part and is substantially hemispherical with a planar portion (8) perpendicular to the in-/outlet passages (9, 10). The flange (13) of the membrane forms the packing between the two halves of the container. The membrane may be equipped with a reinforcement plate (14) perpendicular to the in-/outlet passages. To ensure that the container is leakage proof at large pressure variations, the container is at the oil/gas side equipped with a resilient packing nose (16) and labyrinth packing (17). The in-/outlet passages are formed as annular gaps (21). The container has only metallic packings.
Patent NO-170420-C (NO)
Inventor: DAVID MARIE-HENRIETTE L
IPC: C07H15/04
Filed: 1989-03-15
Abstract: 6-C8 to C22 acyl-1-C3 to C12 alkylglucosides are a new group of surface active compounds useful in particular as emulsifiers in cosmetics, pharmaceutical compositions and foodstuffs. They are prepared by reacting a 1-C3 to C12 alkyl glucoside with a C8 to C22 fatty acid in the presence of a lipolytic enzyme and in a reaction medium containing at most 30% and preferably 0.01 to 5% water.
Patent NO-180708-C (NO)
Inventor: HUSSON RAYMOND
IPC: B24B49/18
Filed: 1992-08-20
Abstract: According to this method, between two deburring operations, the position of at least one active point of the grinding wheel (11) is measured and, after thus having measured the position of a predetermined number of points, the trajectory of the grinding wheel corresponding to the grinding wheel profile defined by these points is calculated. Application to deburring tubular components made from cast iron. <IMAGE>
Patent AU-729589-C (AU)
Title: Tolerogenic fragments of natural allergens
Inventor: BERRENS LUBERTUS
IPC: A61K38/095
Filed: 1997-10-30
Granted: 2001-08-30
Abstract: The present invention relates to a process for the controlled enzymatic cleavage of purified and depigmented active allergenic proteins from indoor and outdoor source materials, which process produces fragments of allergens that retain the natural T-lymphocyte stimulating epitopes, but are depleted of IgE-binding B-cell epitopes and complement-activating agents. The invention also relates to the new pharmaceutical products. These allergen fragments do not exhibit the disadvantages of conventional allergenic extracts for immunotherapy and can be safely used to induce a state of specific T-cell anergy and immunological tolerance in allergic human beings.
Patent CA-2002663-C (CA)
Inventor: KAUFMAN ARIE E
IPC: G06T15/00
Filed: 1989-11-09
Granted: 1998-02-03
Abstract: The present invention concerns a method of and apparatus for storing to and accessing from a memory device, one or more voxels of a beam disposed along one or more of a plurality of storage/retrieval directions of a 3-D matrix array and 3-D discrete voxel space.  Voxels are stored into memory space by mapping the voxels along one of the plurality of storage/retrieval directions, into a plurality of independently successful memory modules in memory storage space.  Each memory module is indexed by a memory module index and has internal memory cell addresses.  The mapping is carried out in accordance with a linear skewing function which expressed in terms of x, y, and z coordinate directions and integer n.  The voxels can be retrieved along one or more of a plurality of storage/retrieval directions by de-mapping one or more of the voxels from the memory storage space into 3-D voxel space using spacial parameters and integer n.  The demapping operations of the present method are also used in order to determine the voxel depth measures of voxels along one of the storage/retrieval directions.
Patent CA-2011970-C (CA)
Title: Timing extraction method and communication system
Inventor: KAZAWA TOHRU
IPC: H04L25/49
Filed: 1990-03-12
Granted: 1994-05-10
Abstract: ABSTRACT     The present apparatus relates to a method and apparatus for generating synchronized clock pulses.  Clock timing is extracted from N level, multilevel codes of megabits per second data rate by determining a baud rate clock among the N-1 possible clocks synchronized to all the level cross points.  A discriminator is used with a clock and if correct information is not obtained, the clock is changed.
Patent CA-2012591-C (CA)
Inventor: SHERMAN JAMES F
IPC: F16H37/02
Filed: 1990-03-20
Granted: 1993-11-16
Abstract: POWER TRANSMISSION WITH CONTINUOUSLY VARIABLE SPEED RANGE            Abstract of the Disclosure A power transmission has a torque converter, a planetary gear arrangement and a variable ratio drive belt.  The planetary gear arrangement is controlled to establish a low forward ratio and a reverse ratio. The variable ratio belt drive is controlled to provide a variable ratio high speed range.  A torque converter is utilized during the low forward ratio and the reverse ratio and is selectively bypassed during the high speed range.
Patent CA-2013200-C (CA)
Title: Modular coupling for use in frameworks, scaffoldings and the like
Inventor: SWOBODA HELLMUTH
IPC: E04B1/19
Filed: 1990-03-28
Granted: 1999-02-23
Abstract: A coupling wherein a spherical or ring-shaped female coupling member has sockets for pins at the ends of rod-shaped male coupling members. Each pin has a conical displacing portion in front of a cylindrical peripheral surface which is formed with a pair of recesses, and the female coupling member contains a pair of movable retaining elements for each socket and springs, rubber pads or like parts which bias the retaining elements into the recesses of a pin in the respective socket.  The conical displacing portion serves to spread the retaining elements apart during introduction of the pin into a selected socket, and the pin is thereupon secured in inserted position by an internally threaded sleeve which surrounds the end of the rod and can be moved into abutment with the external surface of the female coupling member in order to urge undercut portions of surfaces in the recesses of the inserted pin against the respective retaining elements.  The pin can be extracted from its socket upon retraction of the sleeve and rotation of the rod-shaped coupling member relative to the female coupling member so that the peripheral surface of the pin spreads the respective retaining elements apart and dislodges them from the recesses.
Patent CA-2021287-C (CA)
Title: Dual conductor wristband
Inventor: WEISS JOHN W
IPC: H05F3/02
Filed: 1990-07-16
Granted: 2000-10-17
Abstract: A dual conductor wristband utilizing a two-wire tether having a modified phono-type plug. The wristband includes a strap and a connector case, the case raving a female jack for receiving the dual connector plug. The plug diameter is smaller than conventional plugs, and the diameter of the pilot hole for the plug tip is correspondingly smaller to prevent accidental connection to a non-grounding tether. Two alternative embodiments are presented for coupling the dual connector plug to two electrically isolated backplates on the connector case. each backplate is connected to one of the two conductive pathways on the strap.
Patent CA-2021522-C (CA)
Title: Method for migrating seismic data
Inventor: CHAMBERS RONALD E
IPC: G01V1/38
Filed: 1990-07-19
Granted: 1998-07-07
Abstract: A method for properly migrating seismic data which has been elevation-static corrected.  The method is comprised of assigning a zero (or very small) migration velocity for data  located  below  a  datum,  yet  above  the  original recording  surface  elevation.    A  best  estimated  earth velocity is input into the migration algorithm to represent the  earth below the original  recording  surface.    For seismic data collected in water-covered environments where the water bottom is irregular, the method contemplates that the data lying above the water bottom are migrated using the migration velocity of water.   The data lying at or below the water bottom are migrated with  a migration velocity of zero.  In a second step, are elevation-static corrected and migration is performed where the velocity is zero between the datum and the original surface.   Data below the surface is migrated using the estimated earth velocity.
Patent CA-2027119-C (CA)
Title: Resin compositions having improved antistatic properties
Inventor: ISHIDA YUZURU
IPC: C08L25/02
Filed: 1990-10-09
Granted: 1995-09-12
Abstract: Disclosed is a resin composition having excellent antistatic properties and practical physical properties. The resin comprises (i) a styrene resin; (ii) a polyethylene oxide having a viscosity-average molecular weight ranging from 15,000 to 1,200,000; (iii) either or both of a (meth) acrylate resin and an oxide selected from the group consisting of titanium oxide, zinc oxide and magnesium oxide; (iv) either a surfactant selected from specific sulfonic acid salts or a surfactant selected from specific alkyl sulfates; and ,optionally, (v) a (poly)ethylene glycol having an average molecular weight ranging from 62 to 1,200. The resin composition also provides excellent resistance to hot water.
Patent CA-2031358-C (CA)
Title: Method and apparatus for the aerosol administration of medication
Inventor: MATSON CHARLES JOHN
IPC: A61M11/00
Filed: 1990-12-03
Granted: 2002-02-12
Abstract: A method and apparatus for the aerosol administration of medication. The method comprises the steps of inserting an endotracheal tube into the trachea of a patient, establishing an air flow through the endotracheal tube, and injecting medication into the air flow inside the endotracheal tube in an aerosol form.      The apparatus comprises an improved endotracheal tube (20) adapted for the aerosol administration of medication, the endotracheal tube having an aerosol medication lumen (38), having proximal (40) and distal (32) ends, and extending along at least a portion of the endotracheal tube (20). A nozzle (52) is located at the distal end (32) of the lumen (38), inside the endotracheal tube (20), but adjacent its distal end. A connector (54) is located at the proximal end (40) of the lumen (38) to a connect the lumen to a supply of aerosol medication (58), to dispense the medication in aerosol form from the nozzle (52) in the endotracheal tube.
Patent CA-2041066-C (CA)
Title: One step process for the treatment of parkes desilvering crust to recover zinc and produce a suitable feed for cupellation
Inventor: EVANS PHILIP G
IPC: C22B19/04
Filed: 1991-04-23
Granted: 1997-03-25
Abstract: A process of treating argentiferous alloy variously called  "zinc crust"  or  "silver crust",  obtained in the separation of silver from lead, removes sufficient zinc in one apparatus and process step to ensure the product is suitable as feed to cupellation.  Suitable feed is defined as material, when partially oxidised in a cupel to remove impurities from silver, results in a litharge that is liquid at typical cupellation temperatures.  The process requires that care be taken to avoid excessive oxidation of the crust during its formation.  No preliminary step to upgrade the crust is necessary,  avoiding the associated expense and effort.
Patent CA-2042288-C (CA)
Title: Reciprocating vacuum pump
Inventor: SHINOTO HIROSHI
IPC: F04B39/12
Filed: 1991-05-10
Granted: 2002-12-10
Abstract: A reciprocating vacuum pump characterized in that each sliding part of a crank moving portion and piston moving portions is made oilless, two pistons in the piston moving portions being formed so that their load working lines are aligned, a suction exhaust valve being provided on each of the two pistons. This pump may have a multistage structure in which two pistons extend in a horizontally opposed state. The reciprocating vacuum pump thus constructed is small in size and light in weight, and is substantially free from vibration.
Patent CA-2042480-C (CA)
Title: Horizontal deflection circuit
Inventor: SHIMAOKA KATSUAKI
IPC: H04N3/233
Filed: 1991-05-13
Granted: 1995-06-20
Abstract: A horizontal deflection circuit for a cathode-ray tube video display terminal or a projection tube has a circuit for correcting pincushion or trapezoid distortion on the raster of the CRT.  The correction circuit comprises a modulator for modulating a voltage to be supplied to a driving transformer whereto a horizontal oscillation signal is applied for driving a horizontal deflection output switching device in a horizontal deflection output circuit.  The modulation is made in compliance with a component of a vertical synchronization alternating current of a voltage supplied to the horizontal deflection output circuit.
Patent CA-2046377-C (CA)
Title: Method and apparatus for mounting a retractable window covering
Inventor: COLSON WENDELL B
IPC: E06B9/322
Filed: 1991-07-05
Granted: 1995-08-22
Abstract: Disclosed are methods and an apparatus for mounting and deployment of retractable covering devices, in particular, light control window covering including a lobed head rail to prevent creasing and/or skewing of the window covering when rolled up, the head rail having means for attaching the window covering which insures proper alignment of the window covering. Also included are a bottom rear rail having an antiskewing device which comprises a slidable weight for compensating for skewed roll up; a flip-catch device for preventing wrong-way roll up of the window covering; and a top-catch mechanism for preventing both wrong-way roll up and over rotation in the proper roll up direction.
Patent CA-2061087-C (CA)
Title: Method and apparatus for heating and smelting pulverous solids and for volatilizing the volatile ingredients thereof in a suspension smelting furnace
Inventor: ASTELJOKI JUSSI AKSELI
IPC: F27B3/04
Filed: 1992-02-12
Granted: 2001-04-17
Abstract: A method and apparatus are disclosed for raising the temperature and mixing efficiency of mainly non-combustible pulverous solid particles sufficiently high that a desired smelting and volatilizing is achieved. The method is characterized in that the heating and mixing are carried out in at least two stages. Advantageously the reactions are conducted in a suspension smelting furnace, such as a flash smelting furnace.
Patent CA-2062348-C (CA)
Title: Process for treating heavy crude oil
Inventor: OVALLES CESAR
IPC: C10G47/32
Filed: 1992-03-05
Granted: 1996-04-02
Abstract: Process obtains improved viscosity and improved distillates proportion in heavy hydrocarbons, as heavy crude oil, by providing a feedstock of heavy hydrocarbons containing a water content of greater than or equal to 1% with respect to the weight of the hydrocarbons and reacting said hydrocarbons with a gas containing methane under pressure and at an elevated temperature.
Patent CA-2064172-C (CA)
Title: Automatic brewer
Inventor: BUNN ARTHUR H
IPC: A47J31/40
Filed: 1992-03-26
Granted: 1995-08-08
Abstract: An automatic beverage brewing apparatus which includes: a brew chamber assembly; a piston assembly projecting through the brew chamber assembly; a drive apparatus attached to the piston assembly for moving the piston assembly through the brew chamber; and a water distribution system for distributing brew water and flush water to the brew chamber assembly.  The piston assembly can be controllably axially displaced and rotated.  The piston assembly includes: a generally elongated spool member and an elongated shank portion connected to the spool member; a central axis extending coaxially through both the spool member and the shank portion; a flush water bore extending through the spool member and the shank portion generally coaxial with the central axis.  A throat is formed through a top end of the brew chamber and a drain hole formed in a bottom end of the brew chamber.  The piston assembly is positioned inside of the brew chamber assembly and is capable of releasably sealing both the throat and the drain by being axially moved through the brew chamber.  A spray nozzle is attached to the spool member and receives water from the flush water bore for rinsing the inside of the brew chamber.
Patent CA-2066549-C (CA)
Title: Optical amplifier operating in the 1.26-1.34 .mu.m range
Inventor: FEVRIER HERVE
IPC: G02B6/12
Filed: 1992-04-21
Granted: 1996-12-31
Abstract: Optical amplifier in the spectral range 1.26 to 1.34  mu m, characterised in that it includes a solid fluorine-containing glass substrate (2) doped with praseodymium in which is made a single-mode waveguide (3) in three dimensions exhibiting a difference in index  DELTA n, by comparison with that of the said fluorine-containing glass, of between 4 x 10<-3> and 8 x 10<-2>, the said waveguide being associated through coupling means with an optical pump of wavelength equal to 1.02  mu m +/- 0.1  mu m. 
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Patent CA-2069130-C (CA)
Title: Continuous process for the preparation of sucrose 6-esters
Inventor: SANKEY GEORGE H
IPC: A23L27/30
Filed: 1992-05-21
Granted: 2002-07-16
Abstract: A method is provided for the preparation of a sucrose 6-ester by: (i) reacting sucrose with a trialkyl orthoester or with a ketene acetal in an inert organic solvent in the presence of an acid catalyst to provide a sucrose alkyl 4,6-orthoester, (ii) treating tho sucrose alkyl 4,6-orthoester under mild aqueous acidic conditions to provide a mixture of sucrose 4- and 6-monoesters, (iii) treating the mixture of esters with a base to convert the sucrose 4-ester into sucrose 6-ester, and (iv) neutralising the solution and isolating the sucrose 6-ester, an acidic ion exchange resin being used to catalyse preparation of the sucrose alkyl 4,6-orthoester and to effect its hydrolysis. Sucralose is prepared by chlorinating the sucrose 6-esters prepared.
Patent CA-2069621-C (CA)
Title: Cleaning halogenated contaminants from groundwater
Inventor: GILLHAM ROBERT WINSTON
IPC: B09C1/08
Filed: 1990-11-28
Granted: 1999-08-03
Abstract: Groundwater is contained under highly reducing conditions. The Eh value is brought down to -100 or -200mV, at which the contaminant breaks down, probably by a hydrolysis reaction. The plume of contaminated groundwater (2) is fed through a trench (6) containing a metal such as iron filings (7), which is effective, under strict exclusion of oxygen, and over a period of time, to lower the Eh. Alternatively, the water may be pumped through an enclosed tank containing iron, or other metal, fillings or other high-surface-area form.
Patent CA-2069901-C (CA)
Title: Pyrazolines for protecting crop plants against herbicides
Inventor: ROESCH WOLFGANG
IPC: A01N31/08
Filed: 1990-11-26
Granted: 2001-10-30
Abstract: Pyrazolines for the protection of crop plants against herbicides Compounds of the formula (I) (see formula I) where X, n, R1, R2 and R3 are as defined in claim 1 are suitable as antidotes against phytotoxic secondary effects of herbicides in crop plants without adversely affecting the action of the herbicides against harmful plants.
Patent CA-2072819-C (CA)
Inventor: LOCKWOOD MARK STEPHEN
IPC: F02M25/07
Filed: 1992-06-30
Granted: 1996-10-29
Abstract: An exhaust gas recirculation valve assembly for controlling the recirculation of exhaust gas in an internal combustion engine having a base with an exhaust gas chamber formed therein, a valve assembly having a valve member mounted within the exhaust gas chamber for metering the flow of exhaust gas therethrough, and a valve stem extending out of the chamber through an opening therein, a one piece bearing having upper, intermediate, and lower bearing members for precise positioning of the valve member within the exhaust gas chamber, and a valve stem support assembly for mounting the valve stem relative to an actuator. The intermediate and upper bearing portions operate to deflect exhaust gas, escaping from the exhaust gas chamber and traveling along the valve stem of the valve member, from impinging on the actuator.
Patent CA-2073351-C (CA)
Title: Lysozyme dimers and method of preparing them
Inventor: HERRMANN PETER
IPC: A61P29/00
Filed: 1990-01-08
Granted: 2001-10-16
Abstract: A method is provided for preparing a highly-purified lysozyme dimer product, which comprises dimerizing lysozyme monomer with a suberimidate coupling reagent in a buffer solution adjusted to pH 10, stopping the dimerization at a given point by lowering the pH to 7 via addition of HCl or other suitable acid solution, and purifying the dimeric lysozyme by a series of elution steps carried out using liquid chromatography. Monomeric lysozyme remaining undimerized by the initial dimerization step is recycled into the process in order to increase yield. The present system is advantageous in that large amounts of purified lysozyme dimer can be prepared efficiently and relatively inexpensively, and the lysozyme dimer so produced is useful in treating viral and/or bacterial diseases without causing the cytotoxic effects associated with the lysozyme monomer.
Patent CA-2082605-C (CA)
Title: Monitoring of nca-bt in blood samples of breast cancer patients
Inventor: ELTING JAMES J
IPC: C12P21/08
Filed: 1992-11-10
Granted: 2005-02-01
Abstract: Monitoring the progression of breast cancer by performing a series of specific immunoassays over time to determine changes in the level of tumor marker NCA-BT in blood, e.g., serum, samples obtained from the patient. Increases in blood NCA-BT levels are indicative of a deteriorating condition whereas decreasing levels of blood NCA-BT indicate an improving condition.
Patent CA-2084007-C (CA)
Title: Electric motor stator tabs
Inventor: COOPER CHARLES R
IPC: H02K3/52
Filed: 1992-11-27
Granted: 1997-09-23
Abstract: An electric motor having a circular stator with angularly spaced, radially inwardly extending teeth that define winding slots therebetween.  The teeth inner ends define a bore whereat the motor rotor is located.  The stator is made of a plurality of bound laminations of magnetically permeable material.  The end lamination includes tab portions between the stator teeth which are punched out of the same stock material during the punching process and which are, thereafter, bent to extend away from the stator.  The bent tab portion provides a resting ledge whereat wire extending between the coils on the stator teeth extends over and is retained away from the rotating rotor.  The tabs further aid in properly locating the wire from coil to coil during the winding process.  The tab portions have a rounded, semi-circular end part to prevent the snagging and possible damage of the wire during the initial winding process.