baber/WOPTO huggingface dataset:
Patent CA-2002322-A1 (CA)
Title: Method and apparatus for etching substrates with a magnetic-field supported low-pressure discharge
Inventor: HOFMANN DIETER
IPC: C23G5/00
Filed: 1989-11-06
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to a method and apparatus for etching substrates with a magnetic-field-supported, low-pres-sure discharge.   The etching is performed as a preliminary treatment of the substrates for a subsequent coating.   In this method,  the magnetic field is decoupled from the sub-strates  such  that  the  magnetic  field  strength  at  the substrates is less than 6000 A/m and in the space between the substrates  and  the  magnet  system  at  least  one  electron emitter is disposed at a location at which a magnetic field strength is present that is greater than the field strength at the substrates but equal to or less than 12000 A/m.   On the side of  the  substrates  facing  away  from  the  electron emitter, at least one anode is disposed with an anode poten-tial of +10 to +250 V with respect to ground.   An etching potential between -100 V and -1000 V with respect to ground is  applied  to  the  substrates  and  the  ratio  of  the  gaps between  the substrates and  the surfaces of  the substrates projected onto a projection plane carried through the gaps amounts to at least 0.1.   The potential difference between the  at  least  one  emitter  and  the  at  least  one  anode  is selected so high that an electron current (primary and secon-dary  electrons)  flows  through  the  substrate  gaps  to  the anode.   With this method and apparatus a high etching rate can be achieved with minimal edge damage and sufficient adhe-sion  rendering  it  particularly  useful  for  tools  having cutting edges and/or sharp edge geometries.
Patent CA-2003482-A1 (CA)
Title: Compound, composition, process and use
Inventor: AUSTIN PETER W
IPC: C07C205/40
Filed: 1989-11-21
Abstract: Abstract COMPOUND, COMPOSITION, PROCESS and USE          A bromo-nitro compound of the general formula   where R, R1 and R2 can be hydrogen, or a hydrocarbyl group and R can also be R3CO or R3NHCO and n has a value of at least one.   R and R1 can both be hydrogen.   The value of n is typically one.   Compounds of this type have anti-microbial properties, especially anti-bacterial properties.   The compounds can be used as industrial biocides, especially in water treatment.
Patent CA-2004610-A1 (CA)
Title: Protege-siege automobile
Inventor: GAUDET BRIGITTE
IPC: B60N2/90
Filed: 1989-12-05
Abstract: Protège-siège de voiture-automobile Précis Cette invention présente un protège-siège de voiture-automobile à placer sous un siège d auto pour bébé ou pour enfant, ou sous un siège d'appoint. Cet accessoire comprend deux parties le plateau principal qui se place sous le siège de l'enfant et un panneau avant s étendant à l'avant du plateua principal. Le plateau principal sert à protéger le siège de la voitrue-automobile de l'usure cause par les points d appui du siège à bébé. Un fond de caoutchouc épais de 1/4 de pouce fournit cette protection. Le plateau principal sert aussi à receuilir tous déchets tombant du siège à bébé. Un rebord de 1 pouce de haut empêche la saleté de glisser sur le siège de la voiture et aussi assure que le siège d enfant demeure dans la position désiré sur le protège siège. Le panneau avant sert à protéger l'avant du siège contre toutes saletés provenant des chaussures des enfants: eau boue sable etc...
Patent CA-2006492-A1 (CA)
Title: Rehabilitation of surfaces and wearing slab therefor
Inventor: HOWANIETZ FRIEDRICH
IPC: E01C11/00
Filed: 1989-12-22
Abstract: ABSTRACT            A reconstruction system for surfaces, in particular road surfaces, roof surfaces, and terrace surfaces, with an insulating layer and a wearing layer, is characterized in that the insulating layer is built up in a manner known per se from permanently elastoplastic adhesive and the wearing layer that is incorporated above this is formed from pre-fabricated wearing panels that consist of a wear resistant mono-grain or grain mixture, free of a fine fraction of less than 0.3 mm, this being bound by a weather resistant and water-vapour permeable binding agent.  A pre-fabricated wearing panel suitable for this purpose is formed, for example, from wear resistant mono-grain arranged grain on grain, that is imbedded only in part in a bed of weather resistant water-vapour permeable binding agent, the part that is free of the binding agent forming the useful surface of the wearing panel.
Patent CA-2007460-A1 (CA)
Title: Method and apparatus for producing boron carbide crystals
Inventor: MOORE WILLIAM G
IPC: C01B31/36
Filed: 1990-01-10
Abstract: ABSTRACT     The invention is a method and apparatus for producing boron carbide crystals in which a major portion of the crystals are of sub-micrometer size, and the crystals have a low combined nitrogen content. A nitro-gen-free, particulate mixture of a boric oxide compound and a carbon compound are dropped into the hot zone of a high temperature furnace through a liquid--cooled feed tube. The particles fall from the feed tube into boat members that move out of the hot zone to a collection point. As the particulate mixture falls through the hot zone, it is rapidly heated above the initiation reaction temperature of boron carbide. The result is a product in which most of the boron carbide crystals are less than on (1) micrometer in size.
Patent CA-2009896-A1 (CA)
Title: Conjugates
Inventor: ROWLANDS DAVID J
IPC: C07K19/00
Filed: 1990-02-13
Abstract: ABSTRACT        Hepatitis R core antigen (HBcAg) particles, which carry a polypeptide which presents an antigenic epitope and which are suitable for use in vaccines, are composed of HBcAg provided with a N-terminal extension incorporating a Lys residue and the said polypeptide is coupled to the particles via the side chain amino group of the Lys residue.
Patent CA-2010389-A1 (CA)
Title: Self-locking hanger to accommodate utensils, implements and equipment
Inventor: ARNOLD RICHARD P
IPC: F16M13/00
Filed: 1990-02-20
Abstract: ABSTRACT          A bracket of metal, plastic or the like upon which to hang from a vertical surface utensils, implements or equipment. Manufactures without the use of welding, riveting or other fastening devices, it is designed to maintain structural integrity by use of a self locking feature. The bracket can be used singly, in multiples or in duplicate with a cross-support. The latter three parts are joined together by means of the same locking feature again to ensure struc-tural integrity.
Patent CA-2011713-A1 (CA)
Inventor: KOBAYASHI NOBORU
IPC: B63H11/08
Filed: 1990-03-07
Abstract: A number of embodiments of watercraft having jet propulsion units contained within a tunnel in the hull and wherein the jet propulsion unit is pivotal about a first transversely extending horizontal pivot axis for bringing the jet propulsion unit through trim adjusted positions to an upward out of the water position. In addition, the jet propulsion unit is rotatable about a horizontal longitudinally extending axis so that its downwardly facing water inlet portion may be rotated upwardly for access through an access opening in the hull for servicing. In one embodiment, the jet propulsion unit is only rotatable about the horizontal longitudinally extending axis. A number of embodiments of rudder assemblies are also depicted supported by the steering nozzle for generating steering effects when the steering nozzle is not generating a significant steering effect and  which may be pivoted to an out of the water position for protection when underwater obstacles are struck.
Patent CA-2012404-A1 (CA)
Title: Method and apparatus for conversion of black and white image to grayscale image
Inventor: DEACON JOHN J
IPC: G06T3/40
Filed: 1990-03-16
Abstract: ABSTRACT OF THE DISCLOSURE           A method and apparatus are disclosed in a data processing system for rapidly and efficiently converting a black  and white  image  comprised of  rows  and columns  of picture elements to a reduced size grayscale image.   Each picture element within the black and white image is either black  or  white.   A dynamic  determination  is  made  of  a specified number of picture  elements  from the black and white image which correspond to each new picture element within  the  reduced  size  grayscale  image.   Next,  a  bit counting algorithm is utilized to determine the number of black  and  white  picture  elements  within  each  specified number of picture elements of the black and white image.          The  resultant tally is  then utilized to  access  a table containing  various  grayscale  values  and  the  accessed grayscale value is assigned to an associated new picture element of the reduced size grayscale image.  In a preferred embodiment of the present invention,  the determination of the specified number of picture elements from the black and white image which correspond to each new picture element within the reduced size grayscale image is rounded off to the nearest whole number of picture elements.
Patent CA-2013687-A1 (CA)
Title: Pyridazinones endowed with insecticidal and acaricidal activity
Inventor: BETTARINI FRANCO
IPC: C07D401/12
Filed: 1990-04-03
Abstract: "PYRIDAZINONES ENDOWED WITH INSECTICIDAL AND ACARICIDAL ACTIVITY"     * * * * *     Abstract of the Disclosure .       Pyridazinones endowed with insecticidal and acaricidal activity are disclosed, which have the general formula:       (I) wherein the symbols have the meaning as defined in claim 1.
Patent CA-2014602-A1 (CA)
Inventor: RASWANT SUBHASH
IPC: E01C1/00
Filed: 1990-04-12
Abstract: ABSTRACT OF THE DISCLOSURE      A road traffic network wherein the fundamental "building block" is an endless loop of one-way traffic flow, a second endless loop of one-way traffic flow completely surrounded by the first endless loop and having traffic flow opposite in direction to the traffic flow direction of the first loop and an interconnecting traffic flow roadway extending between the two loops.  The interconnecting roadway merges the traffic seeking to transfer between the two loops such that no vehicle crossovers or intersections are encountered.          A road traffic network can be made from a plurality of interconnected "building blocks" or traffic flow systems, each such system being interconnected with either a single two-way roadway roadways which, again, allow vehicle transfers between portions of the systems without crossovers or intersections.          Intraloop roadways are also provided such that a vehicle need not travel over the entirety of the endless loop if it is desired for the vehicle to transfer between a portion of a first endless loop and a second portion of the same endless loop.  The intraloop bypasses or crossovers serve to allow vehicles to take shorter trips then would be required if the vehicles are required to travel over the entirety of the endless loop in order to arrive at an loop interconnecting roadway for transfer to the other loops of the network.  An entire traffic flow system, i.e., city-wide or larger, can be developed by building and interconnecting the basic building block or traffic flow systems into networks which, too, are interconnected with one another.
Patent CA-2015323-A1 (CA)
Title: Dense media
Inventor: SERGEANT PETER J
IPC: B01J19/10
Filed: 1990-04-24
Abstract: ABSTRACT            A dense medium is made by forming an emulsion of molten metal alloy  droplets  in  a  liquid  carrier.  The  droplets  may subsequently be solidified to form a suspension. The emulsion is made by introducing the metal alloy in solid form into the liquid carrier, heating up the liquid to above the melting point of the alloy,  and dispersing the molten alloy in droplet form in the liquid.  The dispersion step can be achieved using an ultrasonic transducer and sonotrode.
Patent CA-2017075-A1 (CA)
Title: Four-wheel alignment system
Inventor: HASTINGS WILLIAM P
IPC: G01B5/255
Filed: 1990-05-17
Abstract: ABSTRACT OF THE DISCLOSURE     A wheel alignment system including four vehicle supporting members and four alignment fixtures is provided.  The fixtures may be attached to the supporting members or directly to a vehicle wheel and include a guide block and a plurality of swiveling rim claws to ensure they may be quickly, securely and accurately attached, thereby increasing the speed and accuracy of wheel alignment operations.
Patent CA-2017238-A1 (CA)
Title: Method and apparatus for non-contact opens/shorts testing of electrical circuits
Inventor: LEPAGE ANDREW J
IPC: G01R31/02
Filed: 1990-05-22
Abstract: ABSTRACT OF THE DISCLOSURE    A circuit is tested for unwanted shorts and opens by positioning the circuit between a pair of electrodes in a chamber filled with an inert gas with the circuit conductors facing one of the electrodes.  The circuit is charged by applying a selected voltage to the electrodes to produce an electric field extending generally perpendicular to the circuit, the voltage polarity being such that the one electrode carries the negative electrical charge.  The circuit is then subjected to a pulsed laser beam brought to a focus between the one electrode and a selected spot on a conductor of the circuit so as to ionize the chamber gas at the beam focus to form a plasma so that an electric charge is imparted to that spot and to other circuit conductor portions having electrical continuity with that spot.  The circuit is then discharged by reversing the polarity of the applied voltage and increasing the voltage magnitude substantially to the breakdown voltage of the chamber gas so as to form a glowing discharge plasma in the chamber gas opposite the charged portions of the circuit conductors.          The circuit is observed to determine which portions of its conductors are glowing and therefore have electrical continuity with the selected conductor spot and which portions are not.
Patent CA-2018951-A1 (CA)
Inventor: KISMAN KENNETH E
IPC: E21B43/25
Filed: 1990-06-13
Abstract: An oil well producing water is treated to reduce the water cut by injecting through the well into the reservoir a composite slug comprising:  -    a relatively small volume of water-wetting agent in liquid form, said agent being adapted to modify the reservoir  matrix  to  increase  its  water-wetted character; and -    a relatively large volume of non-condensable gas for further laterally extending the matrix surface modification.
Patent CA-2023287-A1 (CA)
Title: Antimicrobial composition
Inventor: CUSACK TIMOTHY M
IPC: A01N25/06
Filed: 1990-08-15
Abstract: An aqueous antimicrobial composition comprising from 10 to 30 percent by weight of ethyl alcohol, from 2 to 5 percent by weight of benzyl alcohol and the remainder to 100% water, and a method of use of the composition for destroying or reducing the number of microbes on a surface contaminated therewith.
Patent CA-2024528-A1 (CA)
Title: Noise suppression circuits
Inventor: SELIGMAN PETER M
IPC: G01D3/032
Filed: 1990-09-04
Abstract: ABSTRACT          A system for suppressing residual noise in the processing of an input signal having a slowly varying residual noise level component and a rapidly varying data component therein is disclosed.  The system includes a first circuit having input and out-put portions for respectively receiving the input signal and outputting the data component thereof.  A second circuit is provided in the system which is coupled to the input portion of the first circuit for adding to the input signal a slowly varying negative signal to substantially eliminate the residual noise level component from the input signal and provide an output signal corresponding essentially to the rapidly varying data component of the input signal.  A third circuit is provided in the system for sensing the output signal; and, a fourth circuit is provided in the system which is responsive to the sensing of a negative value in the output signal for rapidly adding a positive signal to the signal being processed in order to prevent the output signal from going further negative.
Patent CA-2024754-A1 (CA)
Inventor: BOMMART PATRICK
IPC: B60M1/30
Filed: 1990-09-06
Abstract: BREVET D'INVENTION Dispositif de réalisation d'un rail d'alimentation électrique, destiné à assurer l'alimentation électrique d'un mobile et rail d'alimentation électrique susceptible d'être obtenu par ce procédé. DELACHAUX La présente invention concerne un procédé de réalisation d'un rail d'alimentation électrique, destiné à assurer l'alimentation électrique d'un mobile ainsi qu'un rail d'alimentation électrique susceptible d'être réalisé par ce procédé. Pour réaliser un rail (1) d'alimentation électrique, on solidarise mutuellement, de façon continue, un corps de montage (2) et une plaque d'usure (3) en engageant des chants (6, 7) de la plaque d'usure (3) entre des feuillures (9, 10) du corps de montage (2), en réalisant entre eux une pellicule (14) continue d'un matériau électriquement conducteur qui assure leur solidarisation mutuelle. On assure ainsi une liaison intime entre la plaque d'usure (3) et le corps (2), d'une façon satisfaisante à la fois sur le plan mécanique et sur le plan électrique, et dans des conditions économiques avantageuses. (FIGURE 6).
Patent CA-2027207-A1 (CA)
Title: Gear type tool
IPC: B23F21/03
Filed: 1990-10-10
Abstract: The present invention relates to a gear type tool for use in the finishing operation of the toothed surface of a work having teeth of gears and the like, wherein said tool comprises a working liquid reservoir defined at a side of the tool body and a working liquid supplying path which communicates with said oil reservoir and the bottom land of  the working teeth.  A working  liquid which has  been supplied to said oil reservoir is supplied to said bottom land therefrom via said supplying path under centrifugal forces.
Patent CA-2028860-A1 (CA)
IPC: H01Q1/24
Filed: 1990-03-23
Abstract: A field effect transistor FMCW radar trans-ceiver  for  short-range  target  detection,  employs  a varactor-tuned, gallium arsenide field effect transistor, voltage-controlled oscillator in the dual role of the transmitter signal source and the local oscillator.  The radar  transceiver  is  capable  of  operating  at  low  IF frequencies for short range, which can be less than 30 feet, target detection.
Patent CA-2031513-A1 (CA)
Title: Orthopedic apparatus for persons handicapped in one leg
Inventor: HUMBERT CHARLES
IPC: A61F5/01
Filed: 1990-04-26
Abstract: The upper end of a rigid member (1), of generally rectilinear shape and used for leaning against the ground, is provided with a norrow saddle (2), intended to be held between the legs of the user. A device for attachment to the leg (4) sets the upper part (3, 11) of the support member (1) against the inside of the thigh of the handicapped leg, in order to hold the effective surface of the saddle (2) away from the medial plane (28) of the user while facing the ischium (29) on the side of the handicapped leg. The attachment device (4) forces the support member (1) to follow the swinging movements which the user imparts to the handicapped leg, while the other leg supports the body weight. This allows the user to walk with arms and hands free, and without the help of any other orthopaedic means. Since the weight of the body is transmitted to the saddle by the ischium, the leg muscles do not have to support any pressure or force.
Patent CA-2032564-A1 (CA)
Title: Peripheral arterial monitoring instruments
Inventor: APPLE HOWARD P
IPC: A61B10/00
Filed: 1990-12-18
Abstract: PERIPHERAL ARTERIAL MONITORING INSTRUMENTS           Abstract of the Disclosure:               A method and apparatus are described for determining characteristics of peripheral arterial volume and compliance.  A blood pressure cuff is inflated and deflated around a limb of the body and pressure measurements are taken.  The volume of air removed from the cuff is determined in a quantifiable manner, such as by expelling air through an orifice of known characteristics or by means of a volume of know characteristics.  The detected pressures and volume of air removed are used to compute oscillation volume, which in turn is used to display arterial capacity and compliance as a function of transmural pressure and time.  Arterial capacity may be displayed in terms of arterial radius, arterial cross-sectional area, or arterial volume.  A display of these characteristics as a function of pre and post anesthetic administration is particularly useful to the anesthesiologist and surgeon.
Patent CA-2035488-A1 (CA)
Inventor: ADAIR EDWIN L
IPC: A61M16/04
Filed: 1991-02-01
Abstract: ABSTRACT       An endotracheal tube intubation assist device in which an endoscope is utilized to provide a visual image as an aid in performing the intubation of an endotracheal tube within a patient's trachea.  The assist device includes a handle, a malleable elongated insertion section and an endoscope assembly having a viewing end mounted within the insertion section to provide a visual image of the trachea. In use, the endotracheal tube is placed around the insertion section and removably attached to the handle for insertion into the trachea.  The malleable insertion section can be bent by the attending medical personnel for providing a custom fit for the patient at hand.  The handle of the assist device is also formed with an oxygen supply conduit for supplying oxygen to the patient during the intubation process.  Additionally, the handle includes a suction port for attaching a suction tube for evacuation of the trachea during the intubation process.
Patent CA-2036178-A1 (CA)
Inventor: HIRANO AKIRA
IPC: G01M17/02
Filed: 1991-02-12
Abstract: A method and apparatus for examining a wheel of a vehicle is provided.  A support roller assembly for supporting thereon the wheel rotatably is provided to be movable translationally as well as rotationally in a plane when unlocked.   A cylinder actuator having a reciprocating movable rod is also provided.  A wire is extended between the tip end of the rod and the support roller assembly.  When the rod is located at its advanced position, the wire is slackened to establish a static examination mode of operation,  in which the support roller assembly can move freely in a plane without constraints.   Under  this  condition,  the  static characteristic of the wheel is measured and adjusted, if necessary.  On the other hand, when the rod is located at its retracted position, the wire is under tension, and the cylinder actuator is operatively coupled to the support  roller  assembly  whose  movement  is  under constraints  through  the  wire.   Thus,  a  dynamic examination mode of operation is established.  Under this condition, the wheel is set in rotation and the dynamic characteristic of the wheel is measured and adjusted, if necessary.
Patent CA-2037652-A1 (CA)
Inventor: HORIE JOHN P
IPC: A61G1/01
Filed: 1991-03-06
Abstract: The invention relates to an apparatus for eva-cuating persons of decreased mobility from a building, such as a hospital, in the event of emergency. It provides a device for moving a supine person by lifting or sliding. The device comprises  an elongated,  planar,  rigid base portion on which the person lies and a lower surface provided with a layer of carpeting for sliding on a sur-face,  flaps having adjustable straps  for securing the person on the base portion, handles attached to each end of the base portion whereby the device may be pulled from either end, and handles attached to both sides of the base portion whereby the device may be lifted from said both sides.
Patent CA-2039743-A1 (CA)
Inventor: CHON TUCK
IPC: B22F1/102
Filed: 1991-04-04
Abstract: ME-4024 ABSTRACT OF THE DISCLOSURE A thermal spray powder is formed of granules of a silicon aluminum alloy each having bonded thereto discrete particles of a neoalkoxy zirconate type of organo-zirconate. A modified polyester powder may be blended with the mineral granules, in which case the polymeric granules also should have the zirconate bonded thereto. The powder is made by forming a slurry of alloy and zirconate starting powders with an organic binder, and drying the slurry to form the powder.