baber/WOPTO huggingface dataset:
Patent CA-2070830-A1 (CA)
Inventor: WILSON ROBERT S
IPC: B29L31/30
Filed: 1990-12-06
Abstract: 2070830 9108892 PCTABS00005 A composite material is manufactured from two spaced stacks (2 and 4) of intermediate fabric material. Each stack consists of a plurality of layers of material placed together face to face. Each layer is formed by embedding high strength fibres having a high modulus of elasticity in a resin matrix. The stacks (2 and 4) are removed from a release film (6), and a film of adhesive is applied to the lower surface of the side portion (8) of the stack (2) and the upper surface of the side portion (10) of the stack (4).  These side portions (8 and 10) are placed in overlapping relationship, and are then crimp fastened together by a plurality of fasteners (12). Further layers (14 and 16) of intermediate fabric material are placed over the side portions (8 and 10) to cover the fasteners (12). The crimp fastened stacks (2 and 4) are placed in a mould tool comprising a base plate (18) and a top mould plate (20). A vacuum bag (22) is placed over the top mould plate (20), and an air tight seal is made between the vacuum bag (22) and the base plate (18) by means of a peripheral sealer tape (24). The space inside the vacuum bag (22) is evacuated by withdrawing air through a passage (34) at one edge of the vacuum bag (22). The fastened stacks (2 and 4) are compressed by bringing together the plates (18 and 20), and the mould tool and vacuum bag assembly is then heated in an autoclave to cure the stacks (2 and 4) while they remain under pressure to form the required composite material.  After the curing operation has been completed, the mould tool and vacuum bag assembly is removed from the autoclave, the vacuum bag (22) is removed, the mould plates (18 and 20) are separated, and the cured composite material is removed.
Patent CA-2072454-A1 (CA)
Title: High absorbency composite
Inventor: VEITH MICHAEL W
IPC: B32B5/16
Filed: 1992-06-26
Abstract: Disclosed is an absorbent composite including a web formed from a mixture of fibrous material and particulate absorbent material. The web contains from about 15 to about 30 weight percent water. The described absorbent web is capable of containing relatively large quantities of particulate absorbent materials while maintaining an acceptable degree of flexibility.
Patent CA-2074390-A1 (CA)
Inventor: PEREGO GIANLUCA
IPC: F16H3/083
Filed: 1992-07-22
Abstract: A mechanical transmission (10) in particular for toy automobiles comprises a substantially cylindrical element (19) rotating axially in kinematic connection with the motion output (22) of the transmission. On said cylindrical element (19) are fitted in a rotating manner toothed gears (17,18) each of which is in kinematic connection at a different ratio with the motion input of the transmission. Inside the cylindrical element (19) is axially sliding between the gears (17,18) by control means (26) a cursor (24) for selective sequential radial engagement between the cylindrical element (19) and the gears (17,18) so as to realize motion transmission with a different ratio between input and output through selection of engagement between the cylindrical element and a gear. <IMAGE>
Patent CA-2076141-A1 (CA)
Inventor: BUGNON PHILIPPE
IPC: C08K9/00
Filed: 1992-08-14
Abstract: Abstract of Disclosure Process for Improving Storage Stability of Pigments A process for improving the storage stability of a coloured organic pigment in powder form which comprises coating pigment particles with a partially or completely hydrolysed compound of an element of Group IVA or Group IVB of the Periodic Table in its IV oxidation state, thereby inhibiting reduction of the tinting strength of the pigment on storage.
Patent CA-2076574-A1 (CA)
Title: Extended-life drug filled patch
Inventor: HAYNES JOHN L
IPC: A61K33/243
Filed: 1992-08-21
Abstract: PATENT     ABSTRACT                 EXTENDED-LIFE DRUG FILLED PATCH     The invention discloses extended life drug filled transdermal patches and methods for preventing microbial degradation of a drug filled patch.  The patches comprise a preservative amount of an antimicrobial metal to prevent microbial degradation of the drug.   0454h
Patent CA-2077843-A1 (CA)
Title: Turbine blade platform damper
Inventor: STECKLE CHARLES E
IPC: F01D5/16
Filed: 1992-09-09
Abstract: A vibration damper for rotor blades of a gas turbine engine has a shaft and a contact head connected thereto. The shaft is slidably inserted in a cylindrical recess incorporated in the rotor blade platform. During rotation of the rotor disk, the shaft of the damping member slides along the shaft axis, whereby the damping member is moved at least in the radial and circumferential directions by centrifugal forces. The contact head of the damping member of one rotor blade finally bears against the platform portion of an adjacent rotor blade, serving to damp vibratory motion of both blades.
Patent CA-2079519-A1 (CA)
Title: Submersible liquid level measuring system and method of use
Inventor: RODGERS JAMES C
IPC: G01F23/18
Filed: 1992-09-30
Abstract: ABSTRACT OF THE INVENTION           A system and methods of use for determining the level of  a  body  of  liquid,  e.g.,  a  chemical,  in  a  storage  tank, irrespective of the specific gravity of that liquid. The system comprises  a  pressure  transducer  and  an  elongated  tubular, flexible sheath.  An operating liquid of lower specific gravity than the body of  liquid  is  disposed within the  sheath.   The transducer is also disposed within the sheath adjacent the bottom end.  The sheath is immersed in the body of liquid so that its top end is above the liquid's surface.  The pressure applied to the sheath by the liquid causes the sheath to collapse to a minimal  internal cross sectional area,  whereupon the operating liquid migrates up the sheath to form a very thin column.  The operating liquid forming a pool is located at the top of the very thin  column.   Thus,  the  sheath  expands  outward  adjacent  the surface of the body of liquid to retain that pool.  The pressure transducer provides an electric signal representing the pressure applied thereto by the combined height of the operating liquid column and the operating liquid pool.   This signal is used to calculate the height of the body of  liquid.   An air vent is provided to vent the transducer to compensate for atmospheric pressure changes.
Patent CA-2080417-A1 (CA)
Inventor: MAGNOTTA VINCENT L
IPC: D21C11/04
Filed: 1992-10-13
Abstract: A method for white liquor oxidation in a kraft mill utilizes a two-stage selective oxidation system in which the first stage (108) is operated to remove sulfide while the second stage (107) is operated to oxidize a significant fraction of the remaining oxidizable sulfur compounds to sulfate. The resulting selectively oxidized white liquor (21) products are used as alkali sources for various process steps in the mill. Optionally, white liquor can be oxidized in a single stage to convert a significant fraction of the oxidizable sulfur compounds to sulfate. Methods for controlling the selective oxidation process are disclosed. <IMAGE>
Patent CA-2081002-A1 (CA)
Title: Peroxide brightening of mechanical pulps
Inventor: HETZLER BERNARD H
IPC: D21C9/16
Filed: 1992-10-20
Abstract: A method of brightening mechanical pulps by chelating and thickening to reduce the manganese content of the pulp to less than 30 parts per million (Cu less than 1 parts per million) adding ions preferably magnesium ions (e.g. magnesium sulphate MgSO4,) in the amount of 400 to 3,000 ppm Mg ions retained by the pulp based on the oven dry weight of the pulp and thereafter applying a bleaching liquor composed of peroxide (e.g. hydrogen peroxide) and an alkali (e.g. sodium hydroxide) having a ratio of alkali to peroxide of between 1-1 and 2-1 in an amount to apply between 1 to 8 percent peroxide based on the oven dry weight of the pulp and containing no added sodium silicate. Preferably the bleaching liquor will contain magnesium sulphate in the amount of about 0.01 to 0.1% based on the oven dry weight of the pulp. The treated pulp is bleached in a bleaching tower for a sufficient time to obtain the desired degree of brightening and thereby produce a pulp having a brightness at least equivalent to that obtained by bleaching using a conventional silicate stabilized bleaching liquor and the equivalent amount of peroxide.
Patent CA-2083199-A1 (CA)
Title: Method for the treatment of sewage and installation to be used for this method
Inventor: MARSMAN ERIC H
IPC: C02F3/28
Filed: 1992-11-18
Abstract: The invention relates to a method for the treatment of (raw) sewage in a package plant consisting of three bioreactors in series.      The treatment is being carried out using three types of biomass.      In a first step phosphate is removed by biological means and, at the same time, the chemical and biological oxygen demand is lowered in a highly loaded active sludge system, in a second step a nitrification is carried out, ammonium being converted to nitrate, and in a third step a denitrification is carried out using a carbon source. In the denitrification step acidified surplus sludge from the P-removing step can also be used instead of an external carbon source. The nitrifying and denitrifying bioreactors are both fixed film processes. The thickness of the biofilm on the support material in the nitrifying bioreactor can be influenced by adjusting the aeration system or by adjusting the hydraulic loading. In the de-nitrifying bioreactor the thickness of the biofilm can be adjusted by raising the shear by means of raising the superficial velocity in the support material. The system according to the invention makes possible effective treatment of raw sewage in a highly loaded system resulting in the far-reaching removal of COD, nitrogen and phos-phate.      The process can be operated in an alternative mode, where the nitrifying and denitrifying bioreactors are exchanged; first bio-reactor: biological-P-removal and simultaneous reduction of COD, second bioreactor: denitrification and third bioreactor: nitrifi-cation. The effluent of the nitrifying bioreactor is recirculated to the denitrifying bioreactor.      The first step is carried out in a plug flow bioreactor with an anaerobic and an aerobic zone. By using an intermediate settling tank between the first and the second step, it is possible to dis-charge phosphate-rich surplus sludge. The mixing in the nitrifying step is advantageously maintained by aeration under the packages of support material. Mixing in the denitrifying step is accomplished by means of a propellor.
Patent CA-2083482-A1 (CA)
Inventor: KIENE WILFRIED
IPC: G01F1/60
Filed: 1992-11-20
Abstract: Circuitry for a device to measure the flowrate of a fluid containing electrical charges which flows in a pipe section.  The device includes at least one electromagnet connected to a current source which generates a magnetic field through the pipe section and at least two electrodes whose central imaginary connecting line passes through the flow stream in the region of the magnetic field to measure the potential resulting from the charge displacements.  The circuitry also includes a timing circuit which periodically changes the strength of the excitation current from the current source to the electromagnet and switches a signal shunt which is connected between the electrodes and at least two signal memories.  The timing circuit also controls a current sink which is connected in parallel with the electromagnet.  The two signal memories, which store signals from the electrodes, are connected to a correction circuit to which the signals stored in the memories are supplied to produce an output signal corresponding to the flowrate of the fluid in the pipe section which is only minimally dependent of the flow profile or the level of the fluid in the pipe section.
Patent CA-2084894-A1 (CA)
Title: Specific detection of mycobacterium tuberculosis
Inventor: GUESDON JEAN-LUC
IPC: C12Q1/689
Filed: 1991-06-07
Abstract: The invention relates to a nucleic acid fragment derived from the genome of Mycobacterium tuberculosis, which contains one of the sequences I, II, III and IV, defined in the following manner:     I: a sequence chosen from one of the sequences A to H:     A:5' - CCCGCGGCAAAGCCCGCAGGACCACGATCG - 3'   B:5' - CGACCCGCCAGCCCAGGATCCTGCGAGCGT - 3'   C:5' - GGCGGGTCCAGATGGCTTGCTCGATCGCGT - 3'   D:5' - GTTGGCGGGTCCAGATGGCTTGCTCGATCG - 3'   E:5' - TCAAAGGGTTTGACAAATTAATGATTGGTC - 3'   F:5' - TCGTGTACAAAATGTGGACAAGTA - 3'   G:5' - TCGACGGACGTCGTGACCAGAAGTC - 3'   H:5' - GTCGACACGCCTTCTGCACGGGAAGTCCTT - 3'   II: a sequence containing at least 10 consecutive bases of one of the sequences A to F and having a total length of approximately 20 to 40 bases; III: a sequence having a length of 20 to 40 bases which hybridises with the sequence I or with the sequence II, and which preferably possesses an at least 80% homology with these sequences;   IV: a sequence complementary to one of the sequences I, II or III.
Patent CA-2088015-A1 (CA)
Title: System and method for accessing information on stored optical discs
Inventor: DAOUST ROBERT
IPC: G11B17/24
Filed: 1993-01-25
Abstract: SYSTEM AND METHOD FOR ACCESSING INFORMATION               ON STORED OPTICAL DISCS                   ABSTRACT        An automatic disc handling system and method for retrieving and positioning information carrying discs between a storage position to a position of use is described.   A displaceable  robot  having  a pair  of robotic arms is controlled by a computer connected to a robot controller and instructed to move to discrete positions,  either in front of storage racks where a plurality of superposed lighting trays containing one or more discs are stored, or to a plurality of playback units disposed at said position of use to move selected ones of the disc to and from these positions and as requested by a person accessing the discs from a remote station.   The robot is provided with a tray engaging element to move the tray in and out of its storage position, and the robotic arms of the robot are each provided with a picker mechanism to engage and remove the discs from the trays or the playback units and transport them to effectuate a function as dictated by the computer and the robot controller.   The robotic arms are also adapted to invert the disc for access to information recorded on both sides thereof.
Patent CA-2089827-A1 (CA)
Title: Clear hydrophilic coating for heat exchanger fins
Inventor: CLINNIN DAVID D
IPC: B05D5/04
Filed: 1993-02-18
Abstract: PATENT     CLEAR HYDROPHILIC COATING FOR HEAT EXCHANGER FINS                    ABSTRACT OF THE DISCLOSURE      The combination of an ethylene/acrylic acid copolymer and a water soluble amine salt of a fatty acid is useful as a hydrophilic coating for the surfaces of  fins  in a heat exchanger.   The exchanger is more efficient because the coating prevents the blockage of air flow by beads of condensed water which would otherwise build up in the narrow spaces between the fins.            PA218500.RMD
Patent CA-2094278-A1 (CA)
Inventor: TICE BILL
IPC: F16K31/04
Filed: 1992-05-26
Abstract: A feedback, motor-operated valve (1) includes a valve element (13) movably mounted in the casing (5) to control flow. The valve element (13) is adapted for screw-like movement into and out of sealing engagement with the valve seat by a valve stem rotatably mounted in the valve casing. A reversible motor-driven actuating device for the valve device is provided including a reversible drive motor (23) having an output shaft (31) and drive gear (33) which can be driven together in both a clockwise and counterclockwise direction for turning the valve element. An electromechanical feedback device (45) is provided which is operably connected to the driven shaft. A device (53) freely rotatable with the drive shaft for providing a controlled amount of overturning of the motor drive shaft following full closure of the valve element is provided which simultaneously stores a portion of the drive energy expended in the overturning.
Patent CA-2095200-A1 (CA)
Title: Imoroved stable, single-liquid alph-amylase reagent
Inventor: KWAN SHING F
IPC: C12Q1/40
Filed: 1993-04-29
Abstract: In   a   single   liquid   alpha-amylase   reagent composition comprising an aqueous solution of at least one substrate which is hydrolyzed when mixed with a sample of body fluid containing alpha-amylase to yield a detectable label,  alpha-glucosidase form Bacillus stearothermophilus is used to cooperate with the alpha-amylase in the formation of the detectable label said composition being stable against degradation for a least 6 months at 2 to 10°C.
Patent CA-2095665-A1 (CA)
Inventor: BISHOP NORMAN G
IPC: C10J3/06
Filed: 1993-05-06
Abstract: PATENT   (124601) ABSTRACT OF THE DISCLOSURE:          A process and apparatus for gasification of organic materials (typically incorporated in domestic and industrial wastes, including auto shredder residues) to produce useful synthesis gas (primarily CO & H2) with effectively non-toxic ash residue by means of a preferably stoichiometric burner directed into a single stage reactor containing a tumbling charge thus heated to 650 to 800°C (below the incipient fusion temperature of the charge) resulting in thermally cracking and gasifying the organic materials in the charge and reacting the complex hydrocarbons and gas evolved with the CO2 and H2O generated by the burner by combustion of a fuel and oxygen-containing gas at a high flame temperature, typically 2500 to 3000°C.
Patent CA-2096529-A1 (CA)
Title: Recombinant avirulent salmonella antifertility vaccines
Inventor: CURTISS ROY III
IPC: C12N15/01
Filed: 1991-11-20
Abstract: A virulent microbes which include a recombinant expression system encoding a gamete-specific antigen, are disclosed. The microbes can be used in compositions to immunize a vertebrate subject against the gamete-specific antigen, thereby preventing or reducing conception rates in the subject to which they are administered.
Patent CA-2097377-A1 (CA)
Title: Lined reformer tubes for high pressure reformer reactors
Inventor: WILLIAMS JOSEPH J
IPC: C10K3/02
Filed: 1993-05-31
Abstract: A reformer tube assembly for use in reformer reactors including a ceramic tube having an open top end and a closed bottom end, a corrosive resistant liner for said ceramic tube also having an open top end and closed bottom end and a centrally disposed metal tube having an open top end and open bottom end wherein the centrally disposed metal tube has a diameter substantially less than the liner so as to form an annulus between the interior of the liner and the exterior of the centrally disposed tube in which catalyst  for the reaction is placed, and the open bottom end of the centrally disposed tllbe is spaced away from the closed bottom of the liner to allow process gas exiting the catalyst filled annulus to pass along the closed bottom of the liner and up the interior of the centrally disposed metal tube.
Patent CA-2098676-A1 (CA)
Title: Logging While Drilling Tools, Systems, and Methods Capable of Transmitting Data at a Plurality of Different Frequencies
Inventor: MALONE DAVID
IPC: E21B47/18
Filed: 1993-06-17
Abstract: A LWD tool is disclosed comprising, a stator, a rotor which rotates relative to the stator thereby effecting a signal in the borehole fluid flowing therethrough, a brushless DC motor coupled to the rotor for driving the rotor, a position sensor coupled to the motor for sensing the rotational position of the motor, motor drive electronics coupled to motor for driving the motor, and a microprocessor coupled to the position sensor and to the drive electronics for controlling the drive signals to the motor based on the actual and desired positions of the motor.  By controlling the drive signal to the motor, the speed of the motor is controlled, thus effecting changes in frequency and/or phase of the signal in the borehole fluid or mud.  With the ability to change the frequency and/or phase, different encoding techniques such as PSK-type and FSK-type can be used.  Other preferred aspects of the invention include: choosing carrier frequency based on system noise; the use of magnetic positioner and the coordination of the decelaration and acceleration of the modulator to correspond to desired magnetic positioner positions in effecting a phase shift; and jamming avoidance techniques utilizing the position sensor and microprocessor.
Patent CA-2101064-A1 (CA)
Title: Feedback controlled gas mixture generator especially for an hygrometer reaction check
Inventor: METTES JACOB
IPC: B01F23/10
Filed: 1992-01-10
Abstract: A small moisture addition apparatus (1) which regularly, through use of a counterflow, adds a controlled amount of moisture (32) to a sample gas (S) analyzed by an hygrometer (10) to reduce the response time of the hygrometer (10) and to provide automatic verification that the hygrometer (10) is functioning. A method of using that apparatus (1) is also disclosed. The apparatus (1) and method of the present invention can be applied to gas components other than moisture and to the detectors of such components.
Patent CA-2102192-A1 (CA)
Title: Information storing device connectable to a computer
Inventor: GUERIN JAMES
IPC: G06F3/06
Filed: 1992-05-14
Abstract: Device for storing information, which is connectable to a computer, comprising at least one connector (6, 7) adapted to connect it to a computer (1) and memories (9, 14). It is comprised of an acces controller (10), a driver (11) emulating the configuration of a hard disk and a driver (12) emulating a memory extension, said drivers (11, 12) being connected in parallel to memories (9, 14) so that the computer (1) uses the information stored in said memories (9, 14) by using one of the drivers (11, 12), the connectors (6, 7), the internal memory (9), the controller (10) and the drivers (11, 12) being connected on a controller card (8).
Patent CA-2105575-A1 (CA)
Title: Esters of bi- and tricyclic amino alcohols, their preparation and their use in pharmaceutical compositions
Inventor: BANHOLZER ROLF
IPC: C07C69/708
Filed: 1992-03-05
Abstract: The new compounds of formulaA-O-CO-Z(I)(wherein A and Z are defined as explained in the specification) can be prepared by conventional methods; they are suitable as active substances for pharmaceutical compositions.
Patent CA-2110478-A1 (CA)
Title: Microwave frequency doubler circuit
Inventor: FIKART JOSEPH L
IPC: H03B19/16
Filed: 1993-12-01
Abstract: ABSTRACT           A  microwave  frequency  doubler  circuit,  which includes  a  full  wave  rectifier  for  rectifying  an  input signal  and  to  provide  two  outputs,  and  a  differential amplifier having inputs connected to the two outputs.
Patent CA-2111279-A1 (CA)
Inventor: HO SA V
IPC: B09C1/00
Filed: 1993-12-13
Abstract: A process for the in-situ remediation of contaminated soil comprising: (a) forming at least one liquid permeable region within a contaminated soil region, (b) introducing material for treating contaminants in the contaminated soil region into the liquid permeable regions to form at least one treating zone within the contaminated soil region, and (c) transmitting direct electric current through the contaminated soil region between a first electrode and a second electrode having opposite charge, wherein the first electrode is located at a first end of the contaminated soil region and the second electrode is located at the opposite end of the contaminated soil region to cause an electroosmotic flow from the second to the first electrode.
Patent CA-2112665-A1 (CA)
Title: Pharmaceutical compositions for curing rheumatism
Inventor: YANAGAWA AKIRA
IPC: C07D239/553
Filed: 1993-04-30
Abstract: A B S T R A C T          Disclosed  is  a  novel agent   for  curing rheumatism, which consists of a pharmaceutical composition containing 5-fluorouracil or  an N-derivative thereof to be converted into 5-fluorouracil within the body, which is less in side effects,  which has a high degree of safety and which is high in curing effects.