baber/WOPTO huggingface dataset:
Patent CA-2029241-A1 (CA)
Title: Inhibitors of tospovirus
Inventor: GOLDBACH ROBERT W
IPC: C12N15/82
Filed: 1990-11-02
Abstract: Case 137-1037 IMPROVEMENTS IN OR RELATING TO ORGANIC COMPOUNDS            Abstract of the Disclosure Recombinant DNA constructs comprising a DNA coding for transcription into an RNA sequence of tospoviruses or into RNA sequences related thereto, the use of such DNA constructs to transform plants having reduced susceptibility to tospovirus infection and probes for the isolation of tospovirus or diagnosis of plant tospovirus diseases.
Patent CA-2030117-A1 (CA)
Title: Preparation of substantially polycrystalline silicon carbide fibers from methylpolysilanes
Inventor: DELEEUW DAVID CHARLES
IPC: D01F9/10
Filed: 1990-11-16
Abstract: A process for the preparation of substantially polycrystalline silicon carbide fibers is provided.  The fibers may be fabricated to have a small diameter and are thermally stable at high temperatures.  The process is carried out by initially forming fibers from a preceramic polymeric precursor comprising methylpolysilane resins.  The fibers are then infusibilized to render them nonmelting followed by a pyrolysis step in which the fibers are heated to a temperature in excess of 1600°C. in a nonoxidizing atmosphere to form substantially polycrystalline silicon carbide fibers.  The substantially polycrystalline silicon carbide fibers which are formed by the process of the present invention have at least 75% crystallinity and have a density of at least about 2.9 gm/cm3.  The polymeric precursor or the fibers contain, or have incorporated therein, at least about 0.2% by weight boron.  This incorporation of boron may be accomplished either prior to or during formation of the fibers or during at least one of the infusibilizing or pyrolyzing steps of the process.
Patent CA-2030418-A1 (CA)
Inventor: RIETDIJK BARTJAN
IPC: B29C37/00
Filed: 1990-11-21
Abstract: This invention relates to a method of making an article from a thermoplastic sandwich material, the normals of at least two surfaces of said material mutually forming an angle, said sandwich material comprising a foam core of a thermoplastic foam and top layers of a thermoplastic synthetic material, which top layers are reinforced with woven fabric, knitted fabric, fibre web or unidirectionally applied fibres, comprising at least the steps of softening a portion of one of said surfaces of said thermoplastic sandwich material over a distance corresponding at least to the length of the folding line of the angle between the two surfaces, by means of a die, the impression of said die being provided at least partly in the top layer, and folding the two surfaces of said thermoplastic material, the surface that has been softened being thereby disposed on the inside of the angle.
Patent CA-2033507-A1 (CA)
Title: Polyester gasket plasticizers suitable for use with internally plasticized appliance coatings
Inventor: O'BRIEN WILLIAM L
IPC: C08K5/103
Filed: 1991-01-02
Abstract: ABSTRACT OF THE DISCLOSURE Liquid polyester plasticizers, having a hydroxyl value of at least 25, are incorporated into vinyl resins,  such as PVC, which are formed into gaskets for use on appliances made from textured coil stock, especially refrigerators or freezers.  These plasticizers have no detrimental effect on the relatively soft surface coatings on such appliances.
Patent CA-2034825-A1 (CA)
Title: Portable exercise device
Inventor: HURST BRUCE F
IPC: A63B69/16
Filed: 1991-01-23
Abstract: ABSTRACT OF THE DISCLOSURE: The invention provides a portable exercise device having a leg pedal exercise producing member that does not have its own user seat and is operated by the user from an independent seat free of any mechanical connection between the exercise device and the independent seat. The device has a base, an arm pivotally connected thereto, and a pin passable through holes in brackets to support the arm at selected positions. A shaft is rotatably mounted across the arm near the end remote from the pivotally connected end thereof, and pedal shanks are secured to each end of the shaft on either side of the arm, each with a rotatable pedal mounted on the end thereof. The device is collapsible for transportation or storage. A flywheel mounted adjacent the arm may be provided. Preferably, the bottom surface of the base has at least a portion thereof of Sorbothane (trademark). 13
Patent CA-2035571-A1 (CA)
Title: Method of production shaped articles having excellent impact resistance
Inventor: ASANO KUNIYOSHI
IPC: C08L29/04
Filed: 1991-02-01
Abstract: PATENT APPLICATION Country   : JAPON No.       : 23020 Filed on  : 1st February 1990 File      : AM 0472 A B S T R A C T                    * * * * * * * *       A METHOD OF PRODUCTION SHAPED ARTICLES   HAVING EXCELLENT IMPACT RESISTANCE               * * * * * * * *           Company called      :    ATOCHEM  4 & 8 Cours Michelet La Défense 10 Authorized agent    :    Pierre POISSON           Inventors           :    Kuniyoshi ASANO               Tomoyoshi UEMURA Hiroshi   TAKIDA                    * * * * * * * *            The present  invention relates  a method of producing  shaped articles from the composition comprising :          - 50 to 99.5 weight % of a saponified ethylene-vinyl acetate copolymer, - 0.4 to 50 weight % of an ethylene-propylene copolymer, and - 0.1 to 15 weight % of a compatibilizing agent defined in the description.
Patent CA-2037675-A1 (CA)
Inventor: SAITO MASATO
IPC: H01J1/142
Filed: 1991-03-06
Abstract: ABSTRACT OF THE DISCLOSURE    The life characteristics of an electron tube cathode in the operation at a high current density are enhanced.  A metal layer of not more than 2.0 µm thick is formed on a base containing nickel as the main ingredient and a reducing agent such as silicon and magnesium by depositing tungsten by an electron beam under heating in a vacuum.  The base is heat treated in a hydrogen atmosphere at 800 to 1,100°C.  An emissive material layer containing an alkali earth metal oxide and 0.01 to 25 wt% of a rare earth metal oxide, the alkali earth metal oxide containing at least barium oxide, is formed on the metal layer. the life characteristics of the cathode especially during the operation at a high current density such as not less than 2A/cm2 are greatly enhanced.
Patent CA-2038683-A1 (CA)
Title: Method of applying a polyolefin coating to pipe and the product made thereby
Inventor: UPCHURCH THURMAN H
IPC: B29C67/24
Filed: 1991-03-20
Abstract: ABSTRACT OF THE DISCLOSURE      Iron pipe and other hollow articles are lined with a cementitious mortar containing a quantity of polymer particles and the pipe is rotated about its axis so as to stratify the mortar and develop a polymer rich inner surface that is subsequently cured, dried and heated to the polymer fusion temperature and then coated with a continuous layer of pure polymer.
Patent CA-2041062-A1 (CA)
Title: Demetallizing procedure
Inventor: BECKETT D GREGORY
IPC: B65D81/34
Filed: 1991-04-23
Abstract: Selective demetallization of an etchable metal film supported on a polymeric material or other microwave transparent material, particularly an etchable metal film, particularly aluminum, of thickness at least about 1 micron adhesively joined to a flexible polymeric material substrate, is described. A web of metallized polymeric material has a pattern of etchant-resistant material first applied and then the web is immersed in and passed through a bath of aqueous etchant, particularly hot aqueous sodium hydroxide solution, for a time at least sufficient to completely remove the etchable metal from non-protected areas of the web. The demetallized web is washed and dried.
Patent CA-2044329-A1 (CA)
Title: Friteuse electrique
Inventor: JACOB ROBERT C J
IPC: A47J37/12
Filed: 1991-06-11
Abstract: Friteuse comportant une cuve (1) contenant un bain de cuisson (2), une résistance chauffante et un panier (3) susceptible d'occuper, soit une position abaissée pour laquelle le panier est plongé  dans  le bain,  soit  une position élevée pour laquelle le panier est maintenu au-dessus du bain, grâce à des moyens (4) de descente et de remontée du panier commandés par un dispositif de commande comportant une minuterie (5). Selon l'invention, les moyens de descente et de remontée du panier et la minuterie sont entraînés par un moteur unique (6),  et  le  dispositif  de  commande  comporte un moyen de sélection automatique (25) subordonné à un organe de réglage (26) de la minuterie et à la position du panier, de manière à entraîner,  soit  la  minuterie  quand  le  panier occupe  sa position abaissée, soit les moyens de descente et de remontée du panier. L'invention s'applique aux friteuses à usage ménager.
Patent CA-2045339-A1 (CA)
Title: Device for cutting and/or slitting of web or sheet-like travelling matter with a view to its converting into box-type package
Inventor: WINCKLER GERHARD
IPC: B26D7/26
Filed: 1991-06-25
Abstract: ABSTRACT          The invention concerns a device for cutting and/or slitting travelling  web  or  sheet-like  board  matter  (B).  Slitting is achieved by two rotary  circular knifes  (1,  1')  situated on either side of the web (B) and of which the two peripheral cutting edges (1a, 1'a) are in contact with one another. One knife (1) is fitted by means of a supporting ring (3) and a sliding  sleeve  (2)  on  a  shaft  (10)  arranged  crosswise,  ie perpendicularly to the travelling  direction of the web  (B). Between  the  supporting  ring (3)  and  the  sleeve  (2)  is intercalated an elastic circular flat spring (4) destined to hold the two knives  (1,  1'),  when in operating position, in contact with one another with the elastic pretension.            Such a device is generally used in a slitting and creasing machine producing box-type package.
Patent CA-2045677-A1 (CA)
Title: Sieve for a pressure sorting device for fibre suspensions
Inventor: CZERWONIAK ERICH
IPC: B01D39/10
Filed: 1990-12-05
Abstract: In a screen for pressure sorters for fiber suspensions which is of rotationally symmetrical shape in relation to a screen axis and the screen wall of which is pro-vided with screen opening channels connecting the screen inlet side with the screen outlet side and on its inlet and outlet sides with recesses into which the screen opening channels open, in order to improve the through-put capacity of the screen, to simplify its manufacture, to achieve good fatigue strength of the screen and to generate turbulences at the screen inlet side, each of the recesses on the inlet side extends over several screen opening channels and is in the form of a groove extending transversely to the circumferential direction of the screen, a recess is provided for each screen opening channel on the screen outlet side, and the largest width of the recesses on the outlet side is at least as large as the largest width of the grooves on the inlet side.
Patent CA-2051590-A1 (CA)
Title: Apparatus for purifying nonferrous metal melts, particularly aluminum melts
Inventor: SCHULTZE WERNER
IPC: C22B9/05
Filed: 1991-09-17
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus for purifying nonforrous metals melts,such as aluminum melts, by flotation, degassing, and optionally chlorlnatlon techniques is provided whlch includes a  tank provided with a heating system and a removal covering, an inlet for the molt to be purified, an outlat for the resultant purified melt and an lnlet for the introduction of a flushing gas into the melt in tho lower region of the tank. The tank includes a central chamber which is formed by on imler pipe and which is aonnected 1~ its end region with the, tank and optional Intermediate and outer chambers. Tho inlet ~or the flushing gas and the inlet for the melt to be purfied connect to the centrcl chamber, While tho outlet for the purified melt connects with a tank  space or Im opdonel chamber surrouding the central chamber, Preterably, the apparahus includes multiple p;pcelementsformingmultiplechambersconcentrically arrangedsand  connectedd and colmected in a siphon-labyrinth fashionion,
Patent CA-2052520-A1 (CA)
Inventor: PONTIER RENAUD
IPC: C10G11/18
Filed: 1991-09-30
Abstract: BREVET D'INVENTION INSTITUT FRANCAIS DU PETROLE PROCEDE ET DISPOSITIF DE CRAQUAGE CATALYTIQUE EN LIT FLUIDE A COURANT DESCENDANT Invention de Renaud PONTIER, Frédéric HOFFMANN et Pierre GALTIER - L'invention concerne un procédé et un dispositif de craquage en lit fluide à courant descendant. - De manière plus précise, on prélève le catalyseur au moins en partie régénéré, qui doit être recyclé vers le réacteur 1, à partir d'une phase dense 17a, contenue dans un régénérateur 17, et on effectue l'étape d'introduction du catalyseur dans la partie supérieure 3 du réacteur 1 dans des conditions telles que la masse volumique de la suspension gaz-solide ainsi créée soit comprise entre 80 et 500 kg/m3 avant sa mise en contact avec la charge qui est introduite par les injecteurs 5. - Application au craquage catalytique de charges lourdes hydrocarbonées. Figure 1 à publier.
Patent CA-2053119-A1 (CA)
Title: Collet de coffrage de colonne beton
Inventor: RIVARD LUC
IPC: E04G9/00
Filed: 1991-10-09
Abstract: Dans l'industrie de la construction, au niveau de la technique de coffrage de béton, on utilise plusieurs instruments ou technique de solidification du coffrage lui-mème, mais aucun n'offre de rencontrer les facteurs suivants: rapidité de mis en place et de retrait, une grande variété de grandeurs avec un seul collet de coffrage et une utilisation manuelle simple, précise, rapide et sécuritaire.
Patent CA-2053326-A1 (CA)
Inventor: BALL WILL D IV
IPC: E03F5/16
Filed: 1991-10-11
Abstract: An apparatus for separating commingled heavier and lighter immiscible liquids and solids having an upright vessel, a vertical flow tube within the vessel having an upper fluid outlet opening and a lower fluid inlet opening therein, an upper horizontal spreader baffle extending from the flow tube and below the fluid outlet and a lower horizontal spreader baffle extending from the flow tube and above the fluid inlet, a concentric side tube positioned exteriorly of and parallel the vessel and connected to the flow tube below the fluid inlet and providing for the maintenance of a liquid/liquid interface within the vessel above the upper spreader baffle and a commingled fluid inlet pipe extending from exterior of the baffle to the flow tube, the baffle providing means for change of fluid direction from horizontal to vertical and vise versa to improve separation of the lighter from the heavier immiscible liquids and for drawing off both the lighter and the heavier liquids from the vessel.
Patent CA-2053534-A1 (CA)
Title: Wrapper for a smoking article
Inventor: BOKELMAN GORDON H
IPC: B65D65/40
Filed: 1991-10-16
Abstract: WRAPPER FOR A SMOKING ARTICLE           ABSTRACT      An improved smoking article wrapper is disclosed which significantly reduces sidestream smoke using magnesium carbonate in the form of magnesite as a filler.  Smoking articles which employ such wrappers exhibit a significant reducing in sidestream smoke emission without adverse effect on subjective characteristics.
Patent CA-2053857-A1 (CA)
Title: Appareil ameliore pour fabriquer un produit granulaire a dissolution rapide
Inventor: SHAFFER JOHN H
IPC: B01J2/04
Filed: 1990-05-09
Abstract: Un procédé et un appareil correspondant pour fabriquer un produit granulaire thermosensible à dissolution rapide. Le procédé emploie un séchoir à pulvérisation à lit fluidisé (11) ayant un lit fluidisé (24) de particules granulairs vers lequel est amené du produit hors cotes recyclé après avoir été aggloméré pour modifier sa granulométrie. Le séchoir à pulvérisation (11) peut éventuellement être muni d'un deuxième ajutage (22) placé au-dessus du lit fluidisé (24). Le procédé peut être utilisé pour la production d'un agent d'assainissement de l'eau à l'hyprochlorite de calcium dans lequel le chlore est fourni par un réacteur à acide hypochloreux et un appareil d'hypochlorination à la chaux.
Patent CA-2054313-A1 (CA)
Inventor: SAGIYAMA MASARU
IPC: C23C28/02
Filed: 1991-10-28
Abstract: A method for manufacturing an iron-zinc alloy plated steel sheet having two plating layers and excellent in electropaintability and press-formability, which comprises the steps of: passing a steel sheet through a zinc dip-plating bath to form a zinc dip-plating layer on at least one surface of the steel sheet; then, heating the steel sheet, on which the zinc dip-plating layer has been formed, to alloy the zinc dip-plating layer and the surface portion of the steel sheet, so as to form, on the surface thereof, an alloying-treated iron-zinc alloy dip-plating layer as a lower layer having a plating weight of from 30 to 120 g/m2 per surface of the steel sheet; then, passing the steel sheet through an acidic plating bath for 1 to 5 seconds without electrifying same to dissolve the surface portion of the alloying-treated iron-zinc alloy dip-plating layer, so as to form numerous fine jogs on the surface thereof; and then, electroplating the steel sheet in an iron alloy acidic electroplating bath to form an iron alloy electroplating layer as an upper layer, having a plating weight of 1 to 10 g/m2 per surface of the steel sheet, on the alloying-treated iron-zinc alloy dip-plating layer as the lower layer having the numerous fine jogs.
Patent CA-2054495-A1 (CA)
Inventor: PRIMEAUX DUDLEY J II
IPC: C08G18/66
Filed: 1991-10-29
Abstract: A polyurea elastomer foam is disclosed. Specifically, the polyurea foam of this invention includes an (A) component including an isocyanate and a (B) component including (1) a primary amine terminated polyoxyalkylene polyol, (2) a chain eattender, (3) water employed as the sole blowing agent and (4) a surfactant employed as a foam stabilizer.        The polyurea foam of this invention is characterized as a rigid, closed cell foam.
Patent CA-2055646-A1 (CA)
Inventor: LUROIS PATRICK
IPC: B60C11/00
Filed: 1991-11-15
Abstract: Radial tyre tread for heavy goods vehicle comprising at least one groove in a broken circumferential line (1) and grooves in wide broken transverse lines (2) defining blocks, the wide transverse grooves (2) possessing walls whose inclination is constant and symmetrical over a mid zone (6) extending either side of the mid plane to a width of between 40 % and 75 % of the tread width and beyond said mid zone and as far as the edges possess walls whose inclination is variable and asymmetrical and two narrow circumferential lateral grooves (5) situated at a distance from the edges not exceeding one third of the tread width and possessing a depth of between 10 % and 70 % of the depth of the transverse grooves. 
<IMAGE>
Patent CA-2056658-A1 (CA)
Inventor: SATO MASUHIRO
IPC: G10K15/04
Filed: 1991-11-29
Abstract: ABSTRACT OF THE DISCLOSURE          In  a  musical  accompaniment  playing  apparatus,  a reproducing  unit  reproduces  control  information  from  a recording medium on which control  information is  recorded according to a MIDI standard, a sound source unit generates musical    accompaniment    information   by    the   control information,  a  transducer  transforms  a  singer's  voice  to voice information, a control unit controls a volume level of the  musical  accompaniment  information  according  to  the singer's   ability,   mixing   unit   mixes   the   musical accompaniment information with the voice information, and an output unit outputs the mixed information as sound.
Patent CA-2056848-A1 (CA)
Title: Process and apparatus for positioning a string of lids on a series of containers before sealing
Inventor: HAUTEMONT JEAN-CLAUDE
IPC: B65B7/28
Filed: 1991-12-03
Abstract: The invention relates to a method for positioning a continuous lid foil web (12) before sealing it onto a continuous container assembly (40), characterised in that the following stages are carried out repeatedly and consist in: 
 
  - advancing the container assembly in line with a sealing means (50) at a pace equal to a longitudinal pace of containers or to a multiple of this pace, 
  - simultaneously releasing the lid foil web over a length equal to a longitudinal pace of lid foils slightly greater than the longitudinal pace of containers or than the same multiple of this pace, the said web being driven by the container assembly, 
  - in line with the sealing means, exerting a deformation on a central zone of each lid foil so as to move the boundaries between as yet unsealed lid foils in order to bring them into a superposed position with respect to the equivalent container boundaries. 
 
<IMAGE>
Patent CA-2057610-A1 (CA)
Inventor: MERKEL STEPHEN L
IPC: G01P13/00
Filed: 1991-12-13
Abstract: A pressure transducer generates an instantaneous pressure of a pressurized liquid, such as an adhesive, sealant, or caulk, being dispensed from a dispenser.  The signal is received by a filter for filtering out non-bubble pressure disturbances. The filter includes comparators; detection circuitry and times or counters. An alarm indicating the passing of a bubble is indicated in response to signals which pass both the filters.
Patent CA-2059061-A1 (CA)
Title: Insulating support base for a cylindrical electric hot water tank
IPC: F24H1/18
Filed: 1992-01-09
Abstract: An insulating support base for a cylindrical electric water heater tank.  The base is formed of a rigid molded foam material and defines a flat circular base having a concentrically disposed support dome on a top face thereof and shaped for close fit within a bottom cavity of a hot water tank for support engagement with a dome shaped bottom wall of an inner casing of the tank.     The support dome also guides the inner casing to permit it to be automatically centered on the support base.  A spacer ledge is defined about the support dome and extends to an outer edge of the flat circular base.  The spacer ledge accommodates an insulating jacket positioned about the tank inner casing with the outer edge of the circular base being disposed in close fit within a lower marginal edge portion of an outer cylindrical casing of the tank to position the outer casing equidistantly spaced about the inner casing with the insulating jacket therebetween.
Patent CA-2059427-A1 (CA)
Inventor: ISHIBASHI ICHIROU
IPC: B05B12/14
Filed: 1992-01-15
Abstract: Disclosed herein is a structure for preventing current from leaking out of devices such as a valve, an intermediate reservoir, etc., which are employed in an electrostatic spray coating apparatus for applying a desired voltage to electrically conductive paint so as to electrostatically spray-coat a work therewith. The current-leakage prevention structure basically comprises any one of the devices each made of an electrically-conductive material, a container made of an insulating material, which accommodates the device therein and has a paint passage defined therein capable of communicating with the device, and a cover for externally covering the container. A creepage distance defined by the container and the cover is set to reach a desired creepage length or more capable of preventing current leakage. It is therefore possible to reliably prevent current from leaking even when a high. voltage is applied to the devices.