baber/WOPTO huggingface dataset:
Patent WO-0250775-A1 (WO)
Title: Reconstruction d'images en trois dimensions a partir de fluorogrammes a rayons x a plan unique
Inventor: MENHARDT WIDO
IPC: G06T11/00
Filed: 2001-12-19
Abstract: L'invention concerne un procédé de reconstruction de l'image tridimensionnelle d'un objet contenant un produit de contraste possédant au moins un plan de symétrie utilisant une projection de rayons X bidimensionnelle à plan unique. La projection est obtenue par irradiation de l'objet avec des rayons X sensiblement perpendiculaires à un plan de symétrie sélectionné de l'objet. La densité optique de chaque pixel dans la projection, associée à la distance parcourue par le rayon X dans l'objet, est alors divisée par 2 pour définir les coordonnées z de chaque côté du plan de symétrie x-y de l'objet. Les coordonnées z et les coordonnées x, y de chaque pixel définissent le contour tridimensionnel de l'objet.
Patent WO-03099385-A1 (WO)
Title: Respirator hood assembly
Inventor: TEMPLETON RANDALL D
IPC: A62B18/02
Filed: 2003-05-29
Abstract: The present invention provides a respirator hood assembly that has a bag, a half mask and an air filtration unit that defines a rigid external structure around at least a portion of the bag that supports the hood and allows the user to quickly don the hood.
Patent CA-2000453-A1 (CA)
Inventor: MCMILLAN STEVEN W
IPC: G10D3/18
Filed: 1989-10-11
Abstract: Abstract of the Invention An adjustable rest for a stringed instrument such as a violin, comprises a rigid, plastic support at least partially covered with an open-cell foam backing and bearing an adjustable, multi-piece open-cell foam pad supported by wedge-shaped members which wedge-shaped members provide a selected contour particularly comfortable and pleasing to the player.  Hook and loop style fasteners are used to secure the pad, wedge-shaped members, and rigid, plastic support in combination.  The hook and loop material is a synthetic material which adheres when pressed together and, thus, functions as a hook and loop style fastener such as that sold under the trademark Velcro.  In addition, elastic securing device, such as rubber bans, are utilized to secure the rigid, plastic support or base plate to a portion of the musical instrument.  For example, the base plate is posi-tioned in spaced relationship to the bottom plate of the violin in the area known as the lower bouts, and elastic securing device are utilized to secure the base plate in its position by looping certain of the elastic securing device about selected portions  of the instrument as well as a portion of the bottom of the instrument.
Patent CA-2002626-A1 (CA)
Title: Thrashing-and-separating mechanism of grain combine harvester
Inventor: SMIRNOV VLADIMIR I
IPC: A01F12/18
Filed: 1989-11-09
Abstract: THRASHING-AND-SEPARATING MECHANISM OF   GRAIN COMBINE HARVESTER      ABSTRACT      The construction comprises a housing accommodating a rotor whose  external surface carries elements for processing and transporting the bulk grain material entering between the rotor and the housing, the inter-nal surface of the housing also carrying the elements acting on the material handled. The distinctive feature of the construction resides in that the elements of the rotor and housing are designed and installed relative to one another with a provision for  changing the intensity of action of said elements on the material in a part of the space between the housing and the rotor.
Patent CA-2004887-A1 (CA)
Title: Recovery of l-amino acid isomers from their racemic mixtures
Inventor: KIDMAN GENE E
IPC: C07C227/34
Filed: 1989-12-07
Abstract: A method for the isolation of a substantially pure L-isomer of an amino acid from its D,L racemic mixture does not require the use of a resolving agent, the formation of a derivative of the amino acid or additional enzymic reactions. The method is based upon the concept of the equal saturation point wherein the L-isomer can be separated from the D-isomer by precipitation of the L-isomer when the relative concentration of the D-isomer is less than 7.0% or by precipitation of the D,L racemate when the relative concentration is greater than 7.0%. Selective crystallization through seeding allows for further isolation of pure L-isomer when its relative concentration in solution is very low.
Patent CA-2007639-A1 (CA)
Title: Nonskid tire having a long service life
Inventor: HOLZBACH WOLFGANG
IPC: B60C9/18
Filed: 1990-01-12
Abstract: TITLE OF THE INVENTION:     NONSKID TIRE HAVING A LONG SERVICE LIFE          ABSTRACT OF THE DISCLOSURE:    A pneumatic vehicle tire having belt plies and a  tread  portion  that  is  divided  into  two superimposed layers.  The belt plies contain at most 8% plasticizer, and the radially outermost of the tread  portion  layers  contains  at  least  25% plasticizer and is more resilient than the inner tread portion layer.   In order to prevent adverse effects upon the service life of the belt structure due to the diffusion of plasticizer, the inner layer of the tread portion, over the axial edge portions of the belt plies, is thicker than in the central portion of the tire; this inner tread portion layer contains at most 10% plasticizer.
Patent CA-2011352-A1 (CA)
Inventor: BERNARD MARC
IPC: B64C15/00
Filed: 1990-03-02
Abstract: SYSTEME DE GUIDAGE D'UN VECTEUR PAR JETS DE GAZ CONTINUS L'invention a pour objet un système de guidage en lacet, tangage et roulis, qui permet d'utiliser un nombre réduit (trois) de tuyères (T1, T2, T3), fournissant chacune un jet de gaz continu et orientable autour d'un axe sensiblement parallèle a l'axe du vecteur (V) qui les porte, le débattement de chacune des tuyères étant limité de préférence à ? 60.degree., Figure 1.
Patent CA-2012785-A1 (CA)
Title: Rod mounted load cell
Inventor: MCCOY JAMES N
IPC: E21B47/00
Filed: 1990-03-22
Abstract: ROD MOUNTED LOAD CELL     ABSTRACT     A load cell is mounted on a polished rod between a rod clamp and a hanger bar.  The polished rod is connected to a string of sucker rods that drive a reciprocating pump for lifting fluid from a borehole. The load cell includes a tubular body which is fitted with strain gauges for measuring compressional forces applied to the cell.  The ends of the tubular body are shaped with annular spherical surfaces which mate with corresponding surfaces on washers at each end.  Each of the washers tightly surrounds the polished rod and as a result of the loading on the polished rod, the washers and rod are forced into coaxial alignment with the load cell.  Optionally, the polished rod can receive a centralizing sleeve which forces it to be centered within the tubular body of the load cell or the washers at either end thereof.  As a result of the centralized placement of the polished rod, the loading across the cross sectional area of the load cell is made substantially uniform thereby enhancing the operation and life of the load cell.
Patent CA-2013237-A1 (CA)
Inventor: HOUST DOUGLAS R
IPC: H02P25/14
Filed: 1990-03-28
Abstract: A speed control circuit in combination with an electrical motor for use in a hand-held food mixer operated on AC household electrical current.  The motor is a universal type having a series connected armature winding and field winding wherein the field winding includes a plurality of taps each selectably connectable to the current source by a multipoint switch.  A          Quadrac? semiconductor switch containing a triac and triggering diac in one package conducts electrical current from the current source through the armature winding and the selected portion of said field winding over a portion of each cycle of the current source.  A trigger signal causes switching of the semiconductor switch at a predetermined phase angle relative to the voltage waveform of the current source.  An error signal of a magnitude proportional to motor speed and based on counter EMF of the motor is generated by the entirety of the field winding.  The error signal is summed with said trigger signal to vary the phase angle of the semiconductor switch to compensate for variations in load applied to the motor.
Patent CA-2015399-A1 (CA)
Title: Oxide cathode
Inventor: DERKS PETRUS J A M
IPC: H01J1/14
Filed: 1990-04-25
Abstract: ABSTRACT; "Oxide cathode."     The emission properties of oxide cathodes, in which yttrium oxide, scandium oxide or a rare earth oxide is added to the electron-emissive material, are improved by using fine-grained yttrium, scandium or rare earth instead of coarse-grained oxide.
Patent CA-2016167-A1 (CA)
Title: Modified polyvinyl chloride composition
Inventor: PETIT DOMINIQUE
IPC: C08G18/08
Filed: 1990-05-07
Abstract: ABSTRACT OF THE DISCLOSURE          Finished articles made of flexible PVC using the plastisol technology are improved in terms of resistance to heat and solvents, and of reduction in plasticizer migration by incorporating into the traditional plastisol ingredients, appropriate amounts of di- or polyisocyanates and di- or polyols, and/or di- or polyamines, which, upon heating, copolymerize with one another while the PVC is gelling, to form a polymer network within the article.
Patent CA-2017520-A1 (CA)
Title: Diagnostic test kit and method for determination of chlamydial antigen using a membrane having surface hydroxy groups
Inventor: MAUCK JOHN C
IPC: G01N33/569
Filed: 1990-05-25
Abstract: DIAGNOSTIC TEST KIT AND METHOD FOR DETERMINATION           OF CHLAMYDIAL ANTIGEN USING A MEMBRANE HAVING SURFACE HYDROXY GROUPS       Abstract of the Disclosure Antigens from chlamydial organisms in speci-mens can be rapidly and sensitively determined using a polyamide microporous membrane which has surface hydroxy groups.  This determination is accomplished by contacting extracted antigen with the polyamide microporous membrane for a sufficient time for the antigen to bind to the membrane.  Antigen bound to the membrane is contacted with chlamydial antibody so as to form an immunological complex on the membrane. The presence of the complex on the membrane in then determined as a measure of the amount of chlamydial antigen present in the specimen.  The use of this particular membrane improves reagent keeping and reduces background in the assay.
Patent CA-2018386-A1 (CA)
Title: Satellite attitude control system using a superconducting magnetic loop
Inventor: REBOUX ALAIN
IPC: B64G1/32
Filed: 1990-06-06
Abstract: ABSTRACT OF THE DISCLOSURE     A satellite comprising a deployable solar generator that can be oriented relative to the satellite body is kept  facing  the  sun  at  all  times.    It  includes  an attitude     stabilization     device     comprising     a superconductive material closed loop carried by a support coupled to the solar generator and disposed on a side of the support facing substantially away from the sun.   A secondary   loop   parallel   to   the   closed   loop   is substantially the same shape and size as the closed loop, and is carried by the support near the loop.  A resistive circuit is carried by the support near at least part of the closed loop.   A selective electrical power supply circuit is connected electrically to the secondary loop and to the resistive circuit.
Patent CA-2019735-A1 (CA)
Title: Hollow body
Inventor: VESBORG STEEN
IPC: G01F11/26
Filed: 1990-06-25
Abstract: Abstract HOLLOW BODY            A hollow body (1, 50) comprising an outer cup-shaped part (2, 52) consisting of a hollow interior (3, 53), an opening (4, 54) and a tubular park (5, 55) which extends from the opening substantially into the interior of the cup-shaped part.  The entire cup-shaped part (2, 52) and the tubular part (5, 55) are a single piece of plastic material formed by blow molding.  The hollow body may be used as a cap for a container or for metered release of a fluid detergent in the drum of a washing machine during a wash cycle.
Patent CA-2021800-A1 (CA)
Title: Pneumatic variable air volume controller
Inventor: KREUTER PAUL E
IPC: F24F11/76
Filed: 1990-07-23
Abstract: PNEUMATIC VARIABLE AIR VOLUME CONTROLLER                 ABSTRACT OF THE DISCLOSURE In a pneumatic variable air volume controller, a linear relationship is achieved between the actual air velocity in a duct carrying conditioned air to a defined area and a pneumatic pressure signal representing the temperature in that area; and this linear relationship is used to vary the volume of air flowing in the duct.  This is achieved by comparing a pneumatic pressure control signal which is a linear representation of the velocity pressure in the duct to a pneumatic pressure control signal  which varies  as the  square  of  a  thermostat pneumatic pressure signal which itself varies in a linear manner with respect to the temperature in the controlled area.
Patent CA-2022488-A1 (CA)
Title: 2,3-dihydro-1-(pyridinylamino)-indoles, a process for their preparation and their use as medicaments
Inventor: EFFLAND RICHARD C
IPC: A61K31/44
Filed: 1990-08-01
Abstract: This invention relates to 2,3-dihydro-1-(pyridinylamino)-indoles of the formula <CHEM> wherein R1 is hydrogen, loweralkyl, aryl, arylloweralkyl, alkenyl, alkynyl or heteroarylloweralkyl selected from the group consisting of pyridinylmethyl, pyridinylethyl, thienylmethyl, thienylethyl; R2 and R3 are independently hydrogen, loweralkyl, aryl, arylloweralkyl or heteroarylloweralkyl selected from the group consisting of pyridinylmethyl, pyridinylethyl, thienylmethyl, thienylethyl; or R2 and R3 together form a cycloalkane ring of 4 to 6 carbons or a spiro-fused aryl or heteroaryl cycloalkane; X and Y are independently hydrogen, halogen, hydroxy, loweralkyl, loweralkoxy, nitro, amino or trifluoromethyl; m and n are independently integers of 1 to 3, the pharmaceutically acceptable acid addition salts thereof and where appropriate, the optical, geometrical and stereoisomers and racemic mixtures thereof. The compounds of this invention are useful as analgesics, anticonvulsants, for enhancing memory and for the treatment of Alzheimer's disease.
Patent CA-2025403-A1 (CA)
Title: Polyolefin compositions with improved impact strength
Inventor: ILENDA CASMIR S
IPC: C08F255/00
Filed: 1990-09-14
Abstract: ABSTRACT           The addition of a polyolefin-acrylic graft copolymer to blends of polyolefin and core-shell polymers improves compatibility and allows core-shell polymers to be used as processing and performance modifiers polyolefins.  Generally the compatibilizing additive is a graft copolymer of a polyolefin and a methacrylate.  More specifically, the graft copolymer is derived from at least about 80% of a monomer of a methacrylic ester of the formula CH2=C(CH3)COOR, where R may be alkyl, aryl, or aralkyl, substituted or unsubstituted, and less than 20%, based on a total monomer weight, of an acrylic or styrenic monomer copolymerizable with the methacrylic ester grafted on to a non-polar polyolefin trunk , so that at least one chain is a polymer with a weight average molecular weight greater than about 20,000 and is present in a weight ratio with the polyolefin trunk of from about 1:9 to about 4:1.           A typical composition may contain about 20% core-shell modifier, about 10% compatibilizer, the balance being polyolefin.
Patent CA-2026803-A1 (CA)
Title: Monoclonal antibody to exotoxin a of pseudomonas aeruginosa
Inventor: OHTSUKA HIROSHI
IPC: C12N5/10
Filed: 1990-10-03
Abstract: Abstract of the Disclosure:       Human monoclonal antibody to exotoxin A of Pseudomonas aeruginosa, process for producing the antibody, pharmaceutical preparation containing the antibody, and method for treating P. aeruginosa infections by the use of the antibody.
Patent CA-2028690-A1 (CA)
Title: Insert holder with sealable opening
Inventor: GROSSO JOHN
IPC: G09F1/10
Filed: 1990-10-26
Abstract: ABSTRACT OF THE DISCLOSURE     A transparent insert holder of the type characterized by being adapted to receive and protect cards such as photograph-, permits and the like.   The insert holder includes first and second four-sided plastic sheets for forming front and back sides of the insert holder and a four-sided double-sided adhesive frame for being adhesively positioned between said first and second plastic sheets for securing said first and second sheets together in to form the holder.  The adhesive frame defines an opening for receiving a card such as a photograph or identification card therein.     479&14.apl
Patent CA-2030312-A1 (CA)
Title: In-mold coating composition
Inventor: COBBLEDICK DAVID S
IPC: C08F2/44
Filed: 1990-11-20
Abstract: An FRP molding can be in-mold coated using a free radical peroxide initiated thermosetting composition of at least one polymerizable epoxy based oligomer having at least two acrylate groups, at least one copolymerizable ethylenically unsaturated monomer, at least one copolymerizable monoethylenically unsaturated compound having a -CO- group and a -NH2, -NH- and/or -OH group, polyvinyl acetate, at least one zinc salt of a fatty acid, at least one calcium salt of a fatty acid, at least one accelerator for a peroxide initiator, conductive carbon black, a filler such as talc and containing as an additive a soluble ionic organic salt.
Patent CA-2030330-A1 (CA)
Title: Method of using urea as a sacrificial agent for surfactants in enhanced oil recovery
Inventor: PRUKOP GABRIEL
IPC: C09K8/84
Filed: 1990-11-20
Abstract: METHOD OF USING UREA AS A SACRIFICIAL AGENT   FOR SURFACTANTS IN ENHANCED OIL RECOVERY                 (D#79,012-F) ABSTRACT OF THE DISCLOSURE     The disclosed invention is a method of injecting a solution or emulsion containing about 0.05% to about 10% by weight of urea as a sacrificial agent for surfactants into an underground formation in enhanced oil recovery operations, said underground formation having a temperature greater than about 130°F.     HJD pg/aw:EX8N/OlACAN
Patent CA-2031724-A1 (CA)
Title: Nuclear-hydro turbine engine
Inventor: WONGH HAPTAIN R
IPC: F03G7/10
Filed: 1990-12-07
Abstract: ABSTRACT         The leakage proof, self-driving, nuclear-hydro turbine engine for propelling a load. The engine operating on pressurized non-corrosive fluid from the bottom of an energy supply tank, via an air-fluid compressor utilizing self-electric-generating nuclear batteries, or and some solar penals. The engine admittes input energy via some nozzles and gravity to energize a rotor having 8 chambers to turn a rotating shaft. Each of said energized chambers having 45 degree revolution to discharge fed energy via 2 exhaustion outlet conduits to the compressor, which steadily compresses and deliveres to directly energizing the engine.
Patent CA-2034971-A1 (CA)
Title: Carbonylation catalyst system
Inventor: DRENT EIT
IPC: C07C51/14
Filed: 1991-01-25
Abstract: A B S T R A C T                      CARBONYLATION CATALYST SYSTEM       A carbonylation catalyst system, which comprises: a)   a source of a Group VIII metal; b)   a source of a phosphine having an aromatic substituent containing an imino nitrogen atom; c)   a source of protons; and d)   a source of an alkylsulphonate anion, and the use of such a catalyst system in the carbonylation of an acetylenically or olefinically unsaturated compound.
Patent CA-2035516-A1 (CA)
Title: Process for preparing a melanin based pigment by enzymatic means and its use in the making of cosmetics
Inventor: JUNINO ALEX
IPC: C12P17/10
Filed: 1991-02-01
Abstract: The invention relates to a process for the preparation of a melanic pigment, comprising the polymerisation of a compound corresponding to the formula:   <IMAGE> (I)  in which: R denotes a hydrogen atom, an alkyl, alkoxy, hydroxyalkyl, SiR4R5R6 or aminoalkyl radical, or an aryl radical which is unsubstituted or substituted by OH, NH2, alkyl, alkoxy or NO2; R1 and R2 denote alkyl groups or together form a methylene or ethylene group which is optionally substituted by one or more alkyl groups, and R2 denotes hydrogen or COOH, in the presence of an oxidizing medium and of an enzyme with (per)oxidizing activity or of a compound which has a similar activity, and to powders which make use of them and to their cosmetic use.
Patent CA-2037528-A1 (CA)
Title: 2-amino(fluoroalkoxy)pyrimidines and the preparation thereof
Inventor: HAMPRECHT GERHARD
IPC: C07D239/52
Filed: 1991-03-04
Abstract: Disclosed are 2-amino-(fluoroalkoxy)-pyrimidines of the formula I   (see Formula I) where R1 is hydrogen alkyl, alkenyl, or alkynyl, R2 is hydrogen, halogen or haloalkyl, or else trifluoromethoxy or chlorodifluoromethoxy, R3 is hydrogen, halogen or C1-C4-haloalkyl and n is 0 or 1. Also disclosed is a process for preparing these compounds which are valuable intermediates for organic syntheses, especially for preparing crop protection agents.
Patent CA-2039514-A1 (CA)
Title: Microwave-powered heating device
Inventor: BRIGGS DAVID H
IPC: H05B6/80
Filed: 1991-04-02
Abstract: ABSTRACT            A microwave heating chamber(10) has a rectangular opening (12) into which a food support(14) is slidable, the support including a handle(20) and a wall(l8) which serves to close and seal the chamber when inserted.          The wall(18) may have thermal break(22) with the support to prevent heat being conducted to the wall and handle.  The support(14) may have several superposed platforms each to support an item of food, and each may have a rotatable dish.
Patent CA-2042754-A1 (CA)
Title: Enchanced thermal and ignition stability azide gas generant, and process and apparatus for making
Inventor: TAYLOR ROBERT D
IPC: C06D5/06
Filed: 1991-05-16
Abstract: ABSTRACT OF THE DISCLOSURE   Multiple processes and apparatuses are described for improving the prior system of making gas generant pellets or tablets made of sodium azide, molybdenum disulfide and sulfur wherein powdered ingredients thereof are slurried in water, subjected to wet grinding, spray dried to a powdered materialwhich is molded into pellets or tablets which find use in vehicle crash bags or inflators. The first improvement to the old process and apparatus involves adjusting the basicity of the water to a pH of greater than 8.0 up to about 12.5via the addition of sodium hydroxide, followed by the addition of sulfur and molybdenum disulfide and finally the sodium azide whereby azide addition is made to a basic mixture of the other ingredients thereby keeping hydrazoic acid concentration levels below about 3 x 10EXP(-3) moles per liter. The second improvement to the old process and apparatus involves (1) softening the water before its use in slurrying the powdered ingredients to remove undesirable Ca and Mg ions and/or (2) adding sodium sulfide and/or tri-sodium phosphate to the slurry to precipitate any remaining undesirable Ca, Mg, Pb, Fe, Mn and Cu ions as non-hazardous compounds. Each of these metal ions is reduced to no more than about 25 ppm or less. These two improvements are joined together to form a system wherein even better safety results occur. The improvements not only extend to the final product produced, but to the intermediates at the slurry stage as well as at the spray dried stage, which products differ due to significant elimination or minimization of hydrazoic acid and other contaminant metal ion species above mentioned.
Patent CA-2043872-A1 (CA)
Inventor: YOSHINO AKIRA
IPC: C23C8/26
Filed: 1991-06-04
Abstract: This invention relates to a method for forming a uniform, deep nitride layer on and in steel works at low cost, wherein a steel work is fluorided in heated condition in an atmosphere of a mixed gas composed of fluorine gas and inert gas and, then, nitrided in heated condition in an atmosphere of nitriding gas.