baber/WOPTO huggingface dataset:
Patent CA-2004231-A1 (CA)
Inventor: ABE KENICHIRO
IPC: H01B1/06
Filed: 1989-11-30
Abstract: ABSTRACT OF THE DISCLOSURE          Vias having virtually no pores are formed in a multi-layer ceramic substrate by filling through holes of green sheets with a conducting material consisting of a mixture of copper powder particles and copper oxide powder particles, each coated with an organic titanium compound, and firing the green sheets.  The conducting material may be obtained by: kneading mixed copper oxide powder particles and copper powder particles with a solution of an organic titanium compound; drying and cracking the kneaded mixed powder particles; classifying the cracked mixed powder particles; and making the classified mixed powder particles spherical.  The multi-layer ceramic substrate may be used as a printed wiring sub-strate for electronic devices.
Patent CA-2006110-A1 (CA)
Inventor: HEINECKE STEVEN B
IPC: C09J7/02
Filed: 1989-12-20
Abstract: An adhesive composite is provided having a backing which is folded in such a way that no separate liner piece covering the adhesive is required. This invention provides an easily delivered one piece label, tape or dressing.
Patent CA-2007672-A1 (CA)
Title: Method for rejuvenating ni-h_ batteries
IPC: H01M10/30
Filed: 1990-01-12
Abstract: ABSTRACT OF THE DISCLOSURE A method for rejuvenating Ni-H2 battery cells suffering a voltage anomaly providing an improved cell output voltage and capacity.  After the battery containing the cells suffering the voltage  anomaly is  removed  from  service,  the  battery  is discharged.    Discharging  the  battery  reduces  the  hydrogen pressure within the cells, thereby increasing the rate of mass transport of free water back to the electrode stacks of the cells.  The cells are then left to stand for a period sufficient to allow any free water to diffuse back to the electrode stacks.
Patent CA-2009004-A1 (CA)
Title: Projection copying apparatus and projection screen therefor
Inventor: HACKENBERG HUBERT
IPC: G03B21/62
Filed: 1990-01-31
Abstract: ABSTRACT OF THE DISCLOSURE           A projection copying apparatus for reproducing microfilmed originals on a light-tightly disposable projection screen and for producing copies of microfilmed originals comprises means for copying of dot originals operating for complete or sectional copying of the originals  and a projection screen including a diffusing disc  an LCD dics arranged on the diffusing disc, the LCD disc being switchable between two conditions so that in one of the conditions it is transparent for observation of the originals and in the other of the conditions it is opaque for copying or searching.
Patent CA-2009495-A1 (CA)
Title: Feeding device for particulate materials
Inventor: IWAKO MOTONARI
IPC: B65G65/48
Filed: 1990-02-07
Abstract: ABSTRACT OF THE DISCLOSURE     A particulate material  feeder includes a hopper sectioned into two receptacles for accommodating two different kinds of particulate materials.  Each particulate material falling down  through  a  bottom  opening  of  the  receptacle  is introduced into a feed channel defined between a feed roller having a frictional periphery and a control gate having a semi-circular  cross-section.    Thus,  a  pair  of  feeding systems for different two kinds of the particulate materials are symmetrically provided within a single apparatus.   An opening  degree  of  the  feed  channel  may  be  controlled separately and independently in each feeding system so that a definite mixing rate of the two kinds is obtainable as desired.  On the contrary, the feed rollers provided in each feed systems are driven by a single driving source to rotate at  the  same  speed,  which determines  a  feed  rate  of  the particulate materials premixed in a given mixing rate and obtained  in  a  common  region  disposed  beneath  the  feed rollers.  One of the receptacles may further be divided into sub-sections  for  accommodating  an  additional  kind  of particulate materials such as additives.
Patent CA-2013051-A1 (CA)
Title: Liquid for cleaning off ink from printing machines
Inventor: STAEHR HENRIK
IPC: C11D7/26
Filed: 1990-03-26
Abstract: A liquid for cleaning off ink from printing machines A B S T R A C T            An environmentally acceptable cleaning liquid for use in the graphic industry consisting of 90-99% of a vegetable oil,  in particular soy oil,  and 1-10% of a surfactant emulsifier. The liquid is suitable for removing ink from printing  machines  where  it  is  capable  of  replacing the  traditional  cleaning  liquids  based  on  petroleum spirit  and aromatic solvents.  As the liquid does not contain any health hazardous components it is completely safe  to  work  with,  and  due  to  its  bio-decomposable character it is  disposable without problems. Because of its excellent penetration properties the liquid is also suitable for cleaning off machine parts which otherwise are difficult to clean, e.g. rubber sheets.
Patent CA-2015495-A1 (CA)
Title: Modifying a membrane for use as a graft
Inventor: MUCHOW DAVID C
IPC: A61L27/24
Filed: 1990-04-26
Abstract: ABSTRACT Disclosed  is  a  cohesive  membrane  useful  in  tissue grafting having at least one perforation therein,  which preferably further has a handle projecting angularly at least about 500 µm from one surface of the membrane.
Patent CA-2015573-A1 (CA)
Title: Apparatus and method for continuous casting
Inventor: TOZAWA HIROKAZU
IPC: B22D11/115
Filed: 1990-04-26
Abstract: One or more streams of molten metal poured into a continuous casting mold are acted on magnetically by static magnetic fields, covering substantially the entire width of the casting mold, thereby reducing the speed of the molten metal streams from the immersion nozzle) unifying the flow profile of the molten metal in the mold, preventing trapping and accumulating of mold powders and inclusions  into the cast products.     Magnetic poles  are provided which are at least as wide as or wider than the minimum width of the cast products and the iron core is arranged on the same face of the casting mold with mutually opposite polarities in the drawing direction.  Even if casting conditions change from time to time, defects in final products made of the cast metal are substantially reduced.
Patent CA-2017470-A1 (CA)
Title: Process for reducing contamination of high temperature melts
Inventor: JOHNSON NEIL A
IPC: F27D25/00
Filed: 1990-05-24
Abstract: RD-19,583 PROCESS  FOR REDUCING CONTAMINATION OF          HIGH  TEMPERATURE MELTS         ABSTRACT OF THE DISCLOSURE           A method of reducing contamination caused by high intensity heating of metals is taught.  Splatter, vapor droplets and particulate matter is collected to avoid return to the melt.  An electric field is established in the heating zone to attract the vapor droplets and particles to charged plates.
Patent CA-2020953-A1 (CA)
Title: Preparation and use of metal-containing zeolitic catalysts
Inventor: WIELERS ANTONIUS F H
IPC: B01J29/06
Filed: 1990-07-11
Abstract: A B S T R A C T      PREPARATION AND USE OF METAL-CONTAINING ZEOLITIC CATALYSTS      Metal-containing zeolitic catalysts, for use in hydrocarbon conversion processes, are prepared by a process which comprises exposing a zeolitic base material, optionally after introduction of metal ions, to adsorb thereon ammonia or a gaseous lower amine, followed by contacting the zeolitic base material containing adsorbed ammonia or amine with an aqueous solution of a salt of the desired metal with a strong acid at a temperature at which adsorbed ammonia or amine is released.
Patent CA-2022337-A1 (CA)
Title: Method of marine pest control by acoustical pulse generated by plasma spark device
Inventor: BRYDEN ARTHUR D
IPC: H05C3/00
Filed: 1990-07-31
Abstract: Method of Marine Pest Control by Acoustical Pulses Generated by Plasma Sparking Device ABSTRACT      Certain marine organisms, particularly small mollusks like zebra mussels, are often considerable nuisances when they proliferate on the bottoms of boats, water intake pipes, and other submarine objects. Chemical methods for their control are generally regarded as undesirable because of potentially adverse effects on the marine environment, and much thought in recent years has been given to developing devices which will generate suitable underwater acoustical pulses to kill or damage the organisms over a limited area. Most of these devices have proven impractical for one reason or another. However a plasma sparking device, developed in various versions for underwater depth sounding and seismic imaging, is capable of producing powerful acoustical pulses at tunable frequencies. This characteristic, plus advantages of light weight, controlability, economy and safety, makes the plasma sparking device, or plasma gun, an ideal and key component of an underwater method or system designed to kill or control unwanted marine organisms in a defined area.
Patent CA-2022610-A1 (CA)
Title: Human gp130 protein
Inventor: KISHIMOTO TADAMITSU
IPC: C07K14/00
Filed: 1990-08-02
Abstract: Human gp130 protein having at least the following properties: (1) the protein has an affinity with a complex of IL-6 (interleukin-6) and an IL-6 receptor (interleukin-6 receptor); (2) the protein shows an apparent molecular weight of 130 kDa in SDS-polyacrylamide electrophoresis; and (3) the protein participates in the transmission of IL-6 signal; DNA coding for the protein, an expression plamid containing the DNA; and a process for production of the protein using the expression plasmid.
Patent CA-2026017-A1 (CA)
Inventor: HSU DAVID K
IPC: H01L41/257
Filed: 1990-09-24
Abstract: An apparatus and method for nonuniform poling of piezoelectric transducers includes machining one or more indentation into an end of a piezoelectric rod and cutting the rod to present a thickened disk shape. Highly electrically conductive material is deposited on at least the indentations in the one end and on at least portions of the opposite face of the member. One or more electrodes are configured to matingly fit within the indentations on the one face of the disk, with a like number of electrodes being positionable on the opposite face of the material. Electrical power is then applied to the electrodes in desired amounts, polarity, and duration. The indentations vary the electrical field produced within the piezoelectric material to produce nonuniform poling in the material. The thick disk is then cut to remove the indentations and to present a thin, flat two sided disk for installation in a conventional piezoelectric transducer probe. The indentations are selected to produce poling in accordance with desired transducer response profiles such as Gaussian or Bessel functions.
Patent CA-2028080-A1 (CA)
Title: Method for facilitating the control of a centre-steered articulated vehicle and a centre-steered articulated vehicle herefor
Inventor: ANDERSSON BJORN
IPC: B60K23/08
Filed: 1990-10-19
Abstract: Abstract The present invention relates to a method for facilita-ting steering of a centre-steered articulated vehicle comprising a front and a rear vehicle part, which are centre-steered articulated about a common pivot journal and both of which include drive means (F, B). According to the invention, the drive means (F) of the front vehicle part are driven with a greater drive force than the drive means (B) of the rear vehicle part.            The invention also relates to a centre-steered arti-culated vehicle in which the inventive method is ap-plied.
Patent CA-2029813-A1 (CA)
Title: Corona charge system and apparatus for electrophotographic printing press
Inventor: SADWICK PAUL V
IPC: G03G15/02
Filed: 1990-11-13
Abstract: Abstract In a high speed electrophotographic printing apparatus and method wherein a charge of desired polarity and potential is applied uniformly to a photoconductive surface of a rapidly rotating drum (50), an improvement is provided which comprises an electrometer (65) located adjacent the drum surface (55) for sensing and measuring the charge imparted to the surface.  The electrometer is operatively connected through a programmable logic controller (106) to a variable power output (67) that drives the corona array (60a-e)to impart the charge to the drum surface.  Irregularities in charge potential imparted to the surface are thereby measured by the electrometer with appropriate adjustment being made in the charge applied to the drum by the corona array.
Patent CA-2029896-A1 (CA)
Inventor: BUSCH JEAN-CHARLES
IPC: E21B33/02
Filed: 1990-04-02
Abstract: Device for capping a free gushing well through the application on the discharging extremity of a well liner, previously removed from the ground or a platform level, of means of well closure, characterized by the fact that it includes the following means: a well capping system designed to close the well, an anchoring system on the well designed to support the capping system, and a moveable, inclinable support and positioning system for the capping system, including a sliding ramp, means of moving the capping system along the sliding ramp, and means of making the said capping system pivot and placing it above the extremity of the liner to be closed, the means of locking the anchoring system, the means or moving, pivoting, positioning and anchoring the capping system being remote-controlled fluidic means.  The anchoring system is locked onto the lower part of the discharging extremity and disengaged from the liner, and the said means of making the capping system pivot are joined to a fixed element attached to the anchoring system.  And a process for using the device.
Patent CA-2033263-A1 (CA)
Inventor: MALIFAUD PIERRE
IPC: G03B21/60
Filed: 1990-12-27
Abstract: The electromagnetic-radiation distributor is combined with at least one radiation emitter (2) and with at least one receiver (16) of the distributed radiation, and is of the type having a surface which has a predetermined multiplicity of optically directional elements. It is characterised in that, for each element, the mean normal (21) to its optically active surface is individually oriented so as to form equal angles with, on the one hand, the straight line substantially constituting the mean axis of the geometrical solid angle having its apex at the mean centre of the element and surrounding as closely as possible a predetermined region where the receiver or receivers are located and with, on the other hand, the straight line joining the mean centre of the element to the mean centre of the zone where the emitter or emitters are located, and in that the element is shaped optically over its entire active surface so that the solid angle into which the radiation is distributed is, in all its plane cross-sections, at least equal to the said geometrical solid angle. <IMAGE>
Patent CA-2034924-A1 (CA)
Inventor: BROTHERS DENNIS
IPC: A47C7/42
Filed: 1991-01-25
Abstract: The  present  invention  relates  to  an  apparatus comprising  a  complimentary  pair  of  mutually  interlocking members including an elongated member having a side with a notched profile  intermediate between  leading and trailing ends  thereof,  and  a  channel  member  comprising  a wall arrangement defining an open ended channel for receiving a predetermined maximum length of the mounting member, in axial inter-fitting relation therein.  The channel member includes a  rotationally biased  eccentric  cam arranged  on  a  pivot located adjacent the channel with a radially outermost extent of the cam normally biased into inter-fitting relation within the channel in transverse register with the notched profile of  the  elongated  mounting  member  when  the  latter  is inter-fittingly arranged within the  channel.   The cam is operably rotatable out of that interfering relation in order to permit the insertion and the withdrawal of the mounting member in the manner described below.   The notched profile consists  of  an  axially  extending,  non-recursive  concave spiral surface having a radius of curvature which increases with increasing distance from the leading edge.
Patent CA-2035738-A1 (CA)
Inventor: LIU ZONGLING
IPC: A01N63/22
Filed: 1991-02-05
Abstract: The present invention relates to bacteria which can be used as biological control agents for soybean diseases such as those caused by the fungus Rhizoctonia solani. These biological, control agents are specific strains of Bacillus megaterium and can also be used for enhancement of soybean plant growth and yield, as well as for the production of antibiotics directed toward crop fungal diseases.
Patent CA-2037363-A1 (CA)
Title: Current sensor for an electronic trip device
Inventor: BARRAULT MICHEL
IPC: G01R1/20
Filed: 1991-02-28
Abstract: ABSTRACT            CURRENT SENSOR FOR AN ELECTRONIC TRIP DEVICE     A measuring sensor 13 of an electronic trip device of a circuit breaker comprises a shunt in the form of a hollow cylinder 16 inside which there is located an electronic processing unit 23, comprising an amplifier circuit and an input resistance in good thermal contact with the internal face of the cylinder.
Patent CA-2042455-A1 (CA)
Title: Rule invocation mechanism for inductive learning engine
Inventor: TENG HENRY S
IPC: G06N5/00
Filed: 1991-05-13
Abstract: ABSTRACT      A rule invocation mechanism in an inductive learning engine employing symbolic rules for characterizing a sequence of time-related events.  The rules to be tested as hypotheses against new events in the sequence are ranked according to their information content or "quality" value.  The efficiency of the rule-to-event pattern matching process for characterizing the new events is increased by not testing a hypothesis if a much better hypothesis already exists.  Those hypotheses that characterize events in the sequence are tagged to the event.
Patent CA-2042983-A1 (CA)
Title: Alkylbenzenes for combating nematodes
Inventor: VON DEYN WOLFGANG
IPC: A01N27/00
Filed: 1991-05-21
Abstract: 12              O.Z. 0050/41640 ABSTRACT OF THE DISCLOSURE: Methods of combating nematodes or of preven-ting crop plants from being attacked by nematodes, wherein an effective amount of an alkylbenzene of the general formula I       I, where R1, R2   are each C1-C4-alkyl; R3       is C1-C6-alkyl, C3-C6-cycloalkyl, C2-C4-alkenyl or C2-C4-alkynyl;          R4       is hydrogen, C1-C6-alkyl or C2-C4-alkenyl; and R5       is C1-C6-alkyl, C3-C6-cycloalkyl, C2-C4-alkenyl or C2-C4-alkynyl is allowed to act on the pests or their habitat, and the use of alkyl-benzenes of the formula I for combating nematodes.
Patent CA-2043293-A1 (CA)
Title: Procede de gestion d'un reseau de bases de donnees
Inventor: DELORY JEAN-MICHEL
IPC: G06F17/30
Filed: 1991-05-27
Abstract: Procédé de gestion d'un réseau de bases de données.      Il assure la cohérence des modifications de données dans un réseau de bases de données comportant : une base de données relationnelle (4) qui constitue une référence; et au moins une base de données accessible en temps réel (7); les données de la base de données relationnelle (4) étant répliqués au moins en partie dans des bases de données accessibles en temps réel (7).      Pour permettre à un processus d'application (22 à 24) de modifier des données dans tous le réseau, le procédé consiste à : - envoyer du processus d'application (22 à 24), à un pool de processus serveurs (26, 27) d'un système d'exploitation de la base de données relationnelle (4), une requête de modification de données, en langage SQL;     -,assigner un processus serveur à cette requête pour toute la duréelde son traitement; - envoyer du pool de processus serveurs (26, 27) à un système de gestion (3) de la base de données relationnelle (4), la requête de modification, en langage SQL dynamique; et exécuter cette requête; - déterminer les bases de données, accessibles en temps réel (7), qui sont concernées par la requête de modification; - leur transférer cette requête sous une forme compatible avec un système de gestion (6) de chaque base de données concernée (7); - exécuter la requête de modification, dans chaque base de données concernée.      Application aux réseaux intelligents de télécommunication.
Patent CA-2044173-A1 (CA)
Title: End-attachment of oligonucleotides to polyacrylamide solid supports for capture and detection of nucleic acids
Inventor: GHOSH SOUMITRA S
IPC: C12Q1/68
Filed: 1990-01-04
Abstract: This invention concerns methods and means for covalent attachment of oligonucleotides to solid supports substantially at their 5'-ends. According to the invention thio-oligonucleotides are attached to bromoacetyl-derivatized polyacrylamide supports, or conversely, bromoacetyl-oligonucleotides are immobilized on thiol-polyacrylamide supports. In a further aspect, this invention relates to bromoacetyl-oligonucleotides that may be immobilized on thiol-polyacrylamide solid supports, thiol-oligonucleotides immobilized on bromoacetyl-derivatized polyacrylamide supports as well as to methods for capture of nucleic acids by oligonucleotides attached to polyacrylamide solid supports, either by direct capture or in sandwich hybridization formats.
Patent CA-2046512-A1 (CA)
Title: Method for the inhibition of corrosion of copper-bearing metallurgies
Inventor: HOLLANDER ORIN
IPC: C23F11/10
Filed: 1991-07-09
Abstract: ABSTRACT     A method for inhibiting the corrosion of copper or copper-bearing metals in contact with an aggressive aqueous environment by combining a copper corrosion inhibitor with a chelant.  Azoles are employed as the corrosion inhibitor.          Characteristic chelants include ethylenediamine tetracetic acid nitrilotriacetic acid, citric acid, tartaric acid and dialkyldithiocarbamates.
Patent CA-2050445-A1 (CA)
Title: Abrasive cutting apparatus including inverted cutting chain with inward facing cutting elements
Inventor: SCOTT LEWIS A
IPC: B28D1/12
Filed: 1991-08-30
Abstract: An abrasive cutting apparatus including a cutting chain formed of pivotally connected links is described for cutting rock, concrete and the like.  The abrasive cutting chain is inverted so that its cutter links having abrasive cutting elements fixed thereto face inwardly of the endless loop of chain.  A motor driven drive pulley having a groove which may be provided with an elastomer liner, engages the cutter links to drive the chain.  A pair of idler pulleys with grooves that engage an outward projection on each of the center links of the chain guide the movement of the chain to provide lateral stability and proper tension to such chain.  A releasable connection formed by a pair of connector side links and a connector pin with intermediate portions of reduced diameter, is employed to connect chain sections of standard length to form an endless chain of adjustable length and to enable replacement of broken sections in the field manually without the use of special tools.