baber/WOPTO huggingface dataset:
Patent CA-2066528-A1 (CA)
Title: Process for the preparation of a catalyst or catalyst precursor
Inventor: REINALDA DONALD
IPC: C07C1/04
Filed: 1992-04-21
Abstract: A zirconia-based catalyst or catalyst precursor is prepared by a process comprising mulling a mixture of zirconia and/or a zirconia precursor and a solvent, which mixture has a solids content of from 20 to 60% by weight, and extruding the mixture. The zirconia precursor is preferably zirconium hydroxide. The resulting extrudates may be impregnated with a suitable catalytically active element, preferably cobalt. The cobalt-containing catalyst produced may be used in a process for the preparation of hydrocarbons from carbon monoxide and hydrogen.
Patent CA-2066760-A1 (CA)
Title: Pore pressure prediction method
Inventor: WEAKLEY ROBERT R
IPC: E21B47/06
Filed: 1990-09-20
Abstract: A method of predicting pore pressures at a proposed drilling location using Interval Transit Times derived from seismic data and Interval Transit Times from a calibrated normal geopressure trend.  Seismic Interval Transit Times derived pore pressures and actual pore pressures derived from logs in a drilled well at an offset location are used to correlate graphically or analytically the seismic Interval Transit Times to normal geopressure interval transit times from a proposed drilling location to be used in the prediction of pore pressures at the proposed location.
Patent CA-2067030-A1 (CA)
Inventor: PARSONS KEVIN L
IPC: F41B15/02
Filed: 1992-04-24
Abstract: ABSTRACT An extendable baton includes a hollow tubular barrel with nesting telescoping members which may be ex-tended to a fully expanded position.  The telescoping members are held in the closed position and the opened expanded position by a detent lock, with the ends of the telescoping members designed to engage each other in a positive, rigid, non-interfering relationship by using multiple, parallel tapered stop surfaces.
Patent CA-2067036-A1 (CA)
Title: Method of and apparatus for cartridge tray sealing
Inventor: WADE MAURICE
IPC: B01D53/18
Filed: 1992-04-24
Abstract: METHOD OF AND APPARATUS FOR CARTRIDGE TRAY SEALING     ABSTRACT OF THE DISCLOSURE    A cartridge tray seal  for a chemical process tower.   The seal  includes  a  teflon  impregnated  fiberglass  member  which presents  a  generally flaccid sealing element.   The member is folded within a generally u-shaped channel positioned around the perimeter of the cartridge tray.  A securing strap is positioned within the u-shaped channel to sandwich the fiberglass material therein in a configuration for presenting a pair of outwardly extending sealing lips  for engagement against the shell wall.          This  double  pliable  seal  is  able  to  accommodate  shell  wall deformations and out-of-round conditions which would ordinarily result in liquid and/or vapor leakage around the cartridge tray.
Patent CA-2069188-A1 (CA)
Inventor: BERDAN KARL
IPC: B60R13/04
Filed: 1992-05-21
Abstract: Abstract A system for attaching a trim piece to a panel of, for example, a vehicle, includes a cover and a retaining strip forming the trim piece and adhesive to secure the retaining strip to the panel.  The cover includes a set of formations that engage with a complementary set on the retaining strip allowing the adhesive to hold both on the panel.  The cover may be removed without removing the retaining strip.
Patent CA-2069365-A1 (CA)
Title: Video signal gradation corrector
Inventor: TSUJI TOSHIAKI
IPC: G06T5/40
Filed: 1992-05-25
Abstract: A video signal gradation corrector used in a television receiver or the like for preventing the destruction of the gradation of the black side and the floating of the luminance level of the black side and/or an excessive increase of the luminance level of the white side. The corrector can be realized with a small circuit scale. A histogram operating circuit includes an average luminance level detecting circuit. A constant is subtracted from an output signal of the average luminance level detecting circuit by a subtractor. The result of subtraction is multiplied by a constant by a constant-multiplication circuit. A lower-limit limiter circuit limits an output signal of the constant-multiplication circuit to a signal having a value not smaller than 0. An output signal of the lower-limit limiter circuit is provided as an accumulation start luminance level, thereby enabling a gradation correction in which the floating of the luminance level of the black side and the destruction of the gradation of the black side are prevented. Also, the average luminance level and a constant may be added by an adder. The result of addition is multiplied by a constant by a second constant-multiplication circuit, and is limited to a certain value by an upper-limit limiter circuit. An output signal of the upper-limit limiter circuit is provided as an accumulation stop luminance level, thereby enabling a gradation correction in which an excessive increase of the luminance level of the white side is prevented to suppress the blooming of a CRT.
Patent CA-2069869-A1 (CA)
Title: Uncharged morpholino-based polymers having phosphorous-containing chiral intersubunit linkages
Inventor: SUMMERTON JAMES E
IPC: C08G79/02
Filed: 1990-12-20
Abstract: A polymer composition is disclosed composed of morpholino subunit structures linked together by uncharged, phosphorus-containing chiral linkages, one to three atoms in length. These chiral linkages join the morpholino nitrogen of one subunit to the 5' exocyclic carbon of an adjacent subunit. Each subunit contains a purine or pyrimidine base-pairing moiety effective to bind by hydrogen bonding to a specific base or base-pair in a target polynucleotide.
Patent CA-2071066-A1 (CA)
Title: Fk-900520 enzymatic and/or microbial methylation products
Inventor: SHAFIEE ALI
IPC: C07D307/20
Filed: 1992-06-11
Abstract: - i -                  18445 TITLE OF THE INVENTION   MICROBIAL METHYLATION PRODUCTS            ABSTRACT OF THE DISCLOSURE         Described is a new enzyme, 31-O-desmethyl-immunomycin O-methyltransferase (DIMT) which can specifically and preferentially methylate the C-31 hydroxy group in immunomycin type molecules, also designated FK520 and FR-900520 by Fujisawa.  The enzyme can be extracted out of the microorganism Streptomyces hydroscopicus var. ascomyceticus, (Merck Culture Collection No. MA 6678) ATCC No. 55087.  Employing the enzyme in its active form, supplemented with Mg +2 ion, in the presence of the methyl donor, S-adenosyl methionine (SAM), a new FK520 (FR-900520) derivative has been prepared: 15-desmethyl FR-900520, made from 15,31-bisdesmethyl FK-900520.  This new macrolide can act as an anta-gonist at moderately low dosages and reverse the 54/RJN26                - ii -                        18445 immunosuppressant action  of FK-506, and can be used diagnostically as a tool to determine the presence of FK-506 macrolide type immunosuppressants in natural product broths, distinguishing such immunosuppressants from other chemical families such as the cyclosporins. Also, it can act as antagonist at higher dosages and much lower dosages and is useful in preventing human host rejection of foreign organ transplants, e.g. bone marrow, liver, lung, kidney and heart transplants.
Patent CA-2072635-A1 (CA)
Title: Variable focus lens
Inventor: WILEY ROBERT G
IPC: G02B3/14
Filed: 1991-09-18
Abstract: A variable focus lens apparatus (32) includes a transparent, generally circular envelope (34), a transparent gel (36) having a relatively high resistance to flow encased in the envelope, and a plurality of light refractive particles (38) suspended in a predetermined orientation in the gel. When an external force field (44) is applied to the lens apparatus, the selectively focusable particles are responsive for changing to a new orientation with respect to said envelope for selectively adjusting characteristics of the lens apparatus including at least one of the characteristics of power and astigmatism correction, whereby upon removal of the external force, the particles remain in the new orientation within the gel. A control system (80) for controlling at least one of the strength and duration of the force field applied to the particles is connected to coils (58, 60) and a power supply (54) for generating the force field.
Patent CA-2074065-A1 (CA)
Title: Deshydrateur de boues de fosses septiques, operant a basse vitesse
Inventor: PERRON JEAN-NOEL
IPC: C02F1/52
Filed: 1992-07-16
Abstract: L'équipement comprend une pompe à vide pour la récupération des déchets liquides et solides d une fosse septique et qui les dirige vers un réservoir en même temps qu'est ajouté un polymère au produit du pompage pour accélérer la coagulation des solides.  Par la suite le réservoir est transvidé sous basse pression dans une centrifugeuse vertical opérant à basse vitesse, centrifugeuse d'un diamètre de six (6) pieds qui une fois remplie, entre en action à une vitesse de rotation autour de 330 révolutions par minutes pour séparer les liquides et les solides.  Durant cette opération le liquide est récupéré et retourné à la fosse par gravité alors que le solide forme une boue sur la paroi. Un bras hydraulique localisé centralement par rapport à la paroi de la centrifugeuse vient racler pour le déloger le gâteau de boue déposé sur la paroi. Les débris sont aspirés par la pompe vers un réservoir d'entreposage. Finalement un jet d'eau pur finit le nettoyage. La basse vitesse de rotation permet l'installation de la centrifugeuse sur une plate-forme de camion car elle ne nécessite pas de structure de soutien lourde. Le temps de l'opération est considérablement réduit par rapport aux autres systèmes existants, car ne conservant que les solides, le véhicule possède une plus grande capacité de stockage des boues.
Patent CA-2074596-A1 (CA)
Title: Digital modulators for use with sub-nyquist sampling of raster-scanned samples of image intensity
Inventor: STROLLE CHRISTOPHER H
IPC: H04N9/80
Filed: 1992-07-24
Abstract: DIGITAL MODULATORS FOR USE WITH SUB-NYQUIST SAMPLING      OF RASTER-SCANNED SAMPLES OF IMAGE INTENSITY                 Abstract of the Disclosure Apparatus useful in electronics for the tape recording of a video signal, which is a baseband signal of a prescribed bandwidth extending up to a prescribed maximum frequency, processes the video signal to generate a folded-spectrum video signal. The video signal is digitized and supplied to a digital band-splitting filter with a cross-over frequency at one-half said prescribed maximum frequency, for separating the digitized video signal into samples of a lower-frequency-band component and into samples of a higher-frequency-band component. A balanced modulator is connected for modulating a folding carrier wave of the prescribed maximum frequency, which modulation is done in accordance with the higher-frequency-band component to generate a balanced modulation signal; and the balanced modulation signal is linearly combined with the lower-frequency-band component to generate the folded-spectrum video signal. Preferably, the sampling rate of the digitized video signal is exactly the Nyquist rate of the prescribed maximum frequency, reduces the balanced modulation of a suitably phased folding carrier wave to multiplication of successive samples of the modulating signal alternately by plus one and by minus one. Such multiplications are done without having to use a digital multiplier.
Patent CA-2075830-A1 (CA)
Inventor: PICARD CORINNE M
IPC: A01B27/00
Filed: 1992-08-11
Abstract: ABSTRACT            It is common in a potato harvester to discard rocks separated from potatoes back on to the field.  Some times the rocks are collected in a box and then discarded on to the field.  In the case of collected rocks, they are discarded on to the field as soon as the box fills up.  Another machine is then necessary to remove the rocks from the field.  This method is very inefficient because it increases compaction of the soil by increased traffic over the soil.     This invention, relates to a machine that mounted on a potato harvester will crush the rocks separated by the harvester from potatoes, regardless of their hardness and then discard the crushed rocks.  This feature improves the condition of the soil by reducing traffic over the field.  The machine can be driven by a drive shaft connected to the power take-off of a tractor or a diesel engine.  Since this light-weight machine with an engine can be transferred to any work site it can be used for other applications.
Patent CA-2077316-A1 (CA)
Inventor: LEDOUX MARC J
IPC: B01J27/22
Filed: 1992-09-01
Abstract: L'invention  concerne  un  catalyseur  pour  les  réactions chimiques et pétrochimiques et son procédé de fabrication. Le  catalyseur  comprend  un  oxyde  d'un  des  métaux  de transition, des terres rares ou d'un actinide, de molybdène par  exemple,  comportant  en  surface  des  carbures  et oxycarbures, le coeur pouvant être le métal ou l'oxyde.  Le procédé de fabrication consiste à faire passer sur l'oxyde un  mélange  gazeux  réactionnel  contenant  des  produits carbonés dont on veut opérer une transformation chimique catalytique à la température de réaction.   Les produits carbonés présents dans le mélange provoquent une carburation progressive de la surface de l'oxyde et une augmentation progressive de l'efficacité du catalyseur.   Ce procédé s'applique en particulier au réformage des hydrocarbures pour lequel l'oxyde de molybdène MOO3 constitue un catalyseur préféré.
Patent CA-2079064-A1 (CA)
Title: Polymer scale preventive agent, polymerization vessel effective in preventing polymer scale deposition, and process of producing polymer using said vessel
Inventor: USUKI MASAHIRO
IPC: C08F2/00
Filed: 1992-09-24
Abstract: ABSTRACT OF DISCLOSURE            Polymer scale preventive agent, Polymerization vessel effective in preventing polymer scale deposition, and Process of producing polymer using said vessel A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising:        (A) at least one compound selected from the group consisting of diaminobenzenes and diaminonaphthalenes, (B) a hydroxynaphthoquinone, and (C) an acid.  The polymerization vessel having a coating comprising the polymer scale preventive agent on its inner wall, etc. is effective in preventing deposition of polymer scale, and the polymeric product has a high whiteness and is of high quality.
Patent CA-2079359-A1 (CA)
Title: Breathing apparatus
Inventor: BOWDEN KEVIN
IPC: A61M16/00
Filed: 1992-09-24
Abstract: ABSTRACT OF THE DISCLOSURE          A breathing apparatus for supplying breathable gas to a patient, having a housing which can be hand held by one hand, over the face of the patient and which incorporates a gas inlet on the housing, a gas outlet on the housing, a gas circuit within the housing, a switch on the housing by which gas can be either automatically supplied by the gas circuit to the gas outlet on a cyclic basis, or can be supplied continuously to a manually operable valve in the housing, and a trigger on the housing for controlling the supply of gas to the outlet through the manually operable valve. An attachment for a face mask, so that the face mask can be held in place, and the controls operated, by one hand, leaving the other hand free.
Patent CA-2079938-A1 (CA)
Inventor: WATANABE EIJI
IPC: A61K31/445
Filed: 1992-10-06
Abstract: Abstract of the Disclosure Disclosed herein is a solid formulation containing an amide derivative represented by the following formula (I), polyethylene glycol hydrogenated castor oil, and polyvinylpyrrolidone.     Formula (I)                       (I) In the formula (I), R1 and R2 are identical or dif-ferent, each being alkyl group, benzyl group, tetra-hydrofuranyl group, alkoxyalkyl group or alkoxycarbonyl group, R3 is hydrogen atom or alkoxy group, m is 1 or 2, and Y is a group represented by the following formula (II), (III) or (IV).     Formula (II)                (II) Formula (III)   (III) Formula (IV)                  (IV) In the formulas (II) to (IV), X1 and X2 are identical or different, each being a hydrogen atom or alkoxy group, and n, p and q are integers, each ranging from 1 to 4.          The solid formulation can be manufactured by mixing an amide derivative represented by the formula (I), polyethylene glycol hydrogenated castor oil and polyvin-ylpyrrolidone with a solid carrier or an excipient in the presence or absence of a solvent.
Patent CA-2081081-A1 (CA)
Title: Packaging material, process for producing same and use thereof
Inventor: LINDGREN ERIK
IPC: D21H27/10
Filed: 1992-10-21
Abstract: The present invention relates to a packaging material for reduced transfer  from  a  package  to  its  content of substances  causing   undesirable  taste  and/or  hazardous substances,  this  reduction  being  due  to  the packaging material containing a hydrophobic zeolite. More specifically, the invention concerns paperboard, in which case the substances causing  undesirable taste  mainly are naturally occurring extractive substances, oxidation products thereof and, to  a lesser extent, the paper chemicals present. Further, the presence of a hydrophobic  zeolite in  the paperboard enhances  the water-repellent (hydrophobic) capacity. Also, the present invention  concerns a  method for production of a packaging material of paper, board or paperboard by forming and dewatering  a suspension  of lignocellulose-containing fibres, where the dewatering takes place in the presence of a hydrophobic  zeolite.  Moreover,  the present invention relates  to the  use of a hydrophobic zeolite for production of a packaging material, as  well as  the use of the thus-produced  packaging material in packages for solid or liquid foodstuff, tobacco or medicines.
Patent CA-2081424-A1 (CA)
Inventor: CHUTER TIMOTHY A
IPC: A61F2/06
Filed: 1992-10-26
Abstract: A transluminal arrangement for positioning a prosthesis assembly at an aneurysm in the bifurcated lumen of the aorta and the common iliac arteries extending therefrom. The prosthesis assembly includes a bifurcated endovascular graft having a main body and ipsilateral and contralateral limbs extending therefrom. The assembly also includes main, ipsilateral, and contralateral spring assemblies each having a compressed state. When released from its compressed state, each spring expands a portion of the graft to substantially conform that portion of the graft to the wall of the bifurcated lumen. The transluminal arrangement comprises an elongated member extending through the main and ipsilateral bores of the graft and includes attachment sutures and an inner catheter extending therethrough for temporarily attaching the main and ipsilateral spring assemblies to the elongated member. An outer sheath contains the attached prosthesis assembly, whereas stent boots consisting of short length sheaths contain the ipsilateral and contralateral spring assemblies. A control limb delivery catheter and attachment sutures maintain the contralateral graft limb and spring assembly in the stent boot for placement in the contralateral iliac artery.
Patent CA-2081640-A1 (CA)
Title: Process for the preparation of fibre reinforced metal matrix composites and novel preforms therefor
Inventor: ROBERTSON JAMES G
IPC: C22C47/20
Filed: 1992-10-28
Abstract: A process for the preparation of a fibre reinforced metal matrix composite comprising fibres embedded in a metal in which the process comprises forming a body with a layer of aligned fibres between at least two layers of metal foil and densifying said layers wherein the layer of aligned fibres comprises metal particles interposed between individual fibres, the metal particles being compatible with the metal foil. A preform for a fibre reinforced metal matrix composite is also claimed which comprises a resin and a layer of aligned fibres, the layer having metal particles interposed between adjacent fibres, and the layer and particles being bonded together with the resin.
Patent CA-2083886-A1 (CA)
Title: Multiple pulse responder and detection system and method of making and using same
Inventor: ZHOU PETER Y
IPC: H01F1/153
Filed: 1992-11-26
Abstract: ABSTRACT         A responder for electronic article surveillance apparatus is made by subjecting a plurality of magnetizable elements to heating in the presence of a magnetic field and maintaining the field at a different intensity for each element as it is cooled to provide different magnetic characteristics so that when the responder is subjected to a cyclically varying magnetic interrogation field its several elements produce spaced apart pulses in each cycle.     F501\A0109587\mcw
Patent CA-2084873-A1 (CA)
Title: Process and apparatus for removal of dna and viruses
Inventor: GLENN STEPHAN D
IPC: A61L2/00
Filed: 1991-06-20
Abstract: A single filtration device (12) containing coated filter membranes (32, 38, 62, 68) and absolute pore filters (34, 36, 64, 66) is provided in which the membranes (32, 38, 62, 68) and absolute pore filters (34, 36, 64, 66) are present in two sections (30, 60) of the filter device. The filter device (12) will remove viruses, as modeled by type-C Xenotropic retrovirus, with an efficiency of at least 4.6 x 105; remove DNA from levels of 10 µg/sample to levels below 10 picograms per 500 mg sample of monoclonal antibody; and will remove at least 97 % of some bacterial endotoxins.
Patent CA-2087103-A1 (CA)
Inventor: COX MICHAEL G
IPC: G06F17/50
Filed: 1991-07-11
Abstract: Procédé et appareil de conception d'un système de distribution pour immeuble. Les éléments (135, 136, 137, 138) de tels systèmes de distribution et les exigences de normes en vigueur sont stockés dans une mémoire d'ordinateur. Les paramètres de construction sont introduits manuellement dans un ordinateur. L'utilisateur sélectionne la norme à suivre et l'élément à optimiser. Le système divise l'immeuble en sections selon la norme sélectionnée par l'utilisateur. Le système calcule ensuite la disposition nécessaire permettant une conformité avec la norme sélectionnée. La disposition est tracée et dimensionnée afin d'éviter les éléments structurels de l'immeuble (126, 128, 134), toutefois les éléments de la disposition sont optimisés en taille et en longueur. L'appareil imprime un tirage de la disposition conçue pouvant inclure un listage d'éléments nécessaires pour que le système soit complet.
Patent CA-2087925-A1 (CA)
Title: Method of facilitating the operation of terminals in telecommunications systems
Inventor: KAEUFFERT UWE
IPC: H04M1/247
Filed: 1993-01-22
Abstract: ABSTRACT OF THE DISCLOSURE    A method is disclosed for facilitating the operation of terminals equipped with an input keyboard whose function keys can be assigned fixed and/or variable functions and with a display unit on which a text explaining the function of the function keys can be displayed.    Such a method is provided to reduce the number of required keystrokes and to result in optimized operation.          For this purpose, the actuation for the execution of the respective function as well as the actuation of the display of the respective function are executed solely with the aid of the respective function key and the selection of the two possible actuations is made by the manner and/or extent of actuation of the respective function key.    It is further provided that the actuation of a help key displays on the display unit in groups or individually the performance features that are possible or executable in the respective current operating state of the terminal.