baber/WOPTO huggingface dataset:
Patent CA-1298042-C (CA)
Title: Procede de teinture des fibres keratiniques avec le 5, 6-dihydroxyindole ou ses derives et un anion metallique
Inventor: ARNAUD JEAN C
IPC: A61K8/34
Filed: 1987-02-19
Granted: 1992-03-31
Abstract: L'invention concerne un procédé de teinture des fibres kératiniques, caractérisé par le fait que l'on applique successivement sur ces fibres (a) une composition contenant dans un milieu approprié pour la teinture, à un pH compris entre 2 et 10, un anion d'un métal ayant une bonne affinité pour la kératine et ayant un potentiel d'oxydoréduction supérieur à celui du 5,6-dihydroxyindole ou de ses dérivés, de formule (I) ci-dessous, et (b) une composition contenant dans un milieu approprié pour la teinture, à un pH compris entre 7 et 10, un colorant de formule (I): <IMG> (I) dans laquelle R1 et R2 désignent, indépendamment l'un de l'autre, un atome d'hydrogène ou un groupement méthyle ou éthyle. L'invention s'applique notamment à la teinture des cheveux humains et permet d'améliorer de façon importante la puissance tinctoriale du 5,6-dihydroxyindole ou de ses dérivés.
Patent CA-1276557-C (CA)
Title: Pharmaceutical formulations containing nedocromil
Inventor: CAIRNS HUGH
IPC: A61P43/00
Filed: 1987-03-09
Granted: 1990-11-20
Abstract: Abstract There is described a pharmaceutical mixture comprising nedocromil or a salt thereof in combination with an inhalation agent selected from a bronchodilator or a steroid.     There is also described a salt of nedocromil with basic inhalation agents and compositions containing the salt and the mixture.     The mixtures, salts and compositions are useful for treating reversible obstructive airways disease.
Patent CA-1319434-C (CA)
Title: Fast high-resolution analog-to-digital converter
Inventor: LEWYN LANNY L
IPC: H03M1/36
Filed: 1987-03-12
Granted: 1993-06-22
Abstract: A FAST HIGH-RESOLUTION ANALOG-TO-DIGITAL CONVERTER                  Abstract of the Disclosure An unknown analog signal is compared in amplitude with the signal from a digital-to-analog (D-A) converter.  The converter, preferably monotonic, may be at least partially formed from a plurality of switches connected in a recursive array to define recursive sub-sets.  An adjustable-gain amplifier produces a difference signal having an amplitude indicating the amplitude comparison.  A flash converter converts the difference signal to binary signals.  These binary signals are modified and fed back to the D-A converter to obtain from this converter an output signal having an amplitude approximating the amplitude of the unknown analog signal.  A plurality of successive approximations of the analog signal may be provided in this manner.  In at least one (1) of these approximations, the gain of the amplifier may be increased to increase the sensitivity of the approximation by increasing the gain of the difference signal.  In such approximation(s), before the binary signals from the flash converter are fed back to the D-A converter, they are shifted downward in binary significance by a factor related to the increase in the amplifier gain.  The flash converter may be formed from a plurality of comparators, each constructed and connected to indicate whether the amplifier signal has an amplitude within an individual voltage increment.  One of these comparators may be more precise than the others to more accurately indicate the sign of the amplitude difference between the unknown analog signal and the digital-to-analog signal in some approximations, particularly the final approximations.
Patent CA-1287969-C (CA)
Title: Procede d'obtention d'oxydes mixtes solubles dans l'acide nitrique a partir de solutions de nitrates
Inventor: BACHELARD ROLAND
IPC: G21C3/62
Filed: 1987-03-24
Granted: 1991-08-27
Abstract: L'invention concerne un procédé de fabrication de combustibles nucléaires mixte à base d'un mélange fritté d'uranium et d'au moins un oxyde des éléments choisis dans le groupe constitué par le plutonium, le thorium, les autres éléments fissiles ou fertiles et les terres-rares, à partir de solutions de nitrates des éléments constitutifs et comportant les étapes successives suivantes: a) on mélange des solutions de nitrate dans les proportions voulues; b) on concentre la solution résultante, sous pression réduite ou non; c) on traite thermiquement la solution obtenue en b) pour l'obtention d'un oxyde mixte intermédiaire où de l'uranium se trouve à l'état VI et le cas échéant du Pu à l'état IV ou VI; d) on calcine, si désiré, l'oxyde mixte de l'étape c) pour amener l'oxyde d'uranium à l'état U3O8 et/ou pour achever la transformation en oxyde des nitrates difficilement décomposables; e) on réduit l'oxyde de l'étape c) ou d) pour amener l'uranium et, le cas échéant, le plutonium à l'état IV. f) on stabilise, si désiré, l'oxyde UO2 obtenu de l'étape e);. g) on met en forme et presse l'oxyde mixte ainsi obtenu, de façon à obtenir une pièce de forme en matière dite crue, adaptée au type d'élément combustible à fabriquer; h) on fritte à haute ou basse température sous atmosphère réductrice et/ou légèrement oxydante, des pièces de forme obtenues de l'étape g); et i) on rectifie les pièces obtenues; caractérisé en ce que, dans le but d'obtenir un oxyde mixte intermédiaire sans production d'effluent dans l'étape c), une poudre d'oxyde de coulabilité élevée dans chacune des étapes c), d), e), f), et des pièces de forme massive frittables selon les techniques connues et solubles dans l'acide nitrique seul sans traitement préalable, on procède, directement sur les nitrates issus de l'étape b), à une dénitration thermique donnant des oxydes à grande réactivité.
Patent CA-1291654-C (CA)
Title: Aluminum alloy supporter for lithographic printing plate
Inventor: SHOJI RYO
IPC: B41N1/08
Filed: 1987-03-31
Granted: 1991-11-05
Abstract: TITLE OF THE INVENTION              ALUMINUM ALLOY SUPPORT FOR LITHOGRAPHIC PRINTING PLATE            ABSTRACT An aluminum alloy support for a lithographic printing plate is disclosed which comprises 0.05 to 0.5 wt. % of Fe, 0.1 to 0.9 wt. % of Mg, 0.01 to 0.3 wt % of V and/or Ni, not more than 0.2 wt. % of Si, not more than 0.05 wt. % of Cu, the remainder being Al and inevitable impurities.  In addition, the alloy may contain 0.01-0.3 wt. % of Zr and/or 0.05-2 wt. % of Mn.
Patent CA-1271228-C (CA)
Title: Gas distribution ring for plasma gun
Inventor: YAKOVLEVITCH DANIEL
IPC: H05H1/34
Filed: 1987-04-27
Granted: 1990-07-03
Abstract: LE-3551 ABSTRACT OF THE DISCLOSURE A gas distribution ring for a plasma gun comprises a ring member with two sets of gas inlet orifices extending from the outer surface inwardly through the ring member. The outer surface has an undulated groove for an O-ring formed therein, and the orifices are positioned with respect to the undulated O-ring such that one set of orifices are isolated on one side of the O-ring and the other set of orifices are isolated on the other side of the O-ring. In a preferred embodiment the orifices of one set are radial with respect to the axis of the ring, and the orifices on the other side of the undulated O-ring have a tangential component to provide vortical gas flow in the arc region of the gun, The gas distribution ring positioned in the plasma spray gun permits a simple choice between radial and vortical flow in the arc region of the gun, without alteration of the gun.
Patent CA-1281909-C (CA)
Title: Riser assembly for a sub-surface irrigation and drainage system
Inventor: WARNER JAMES I
IPC: E02B13/00
Filed: 1987-04-29
Granted: 1991-03-26
Abstract: A RISER ASSEMBLY FOR A SUB-SURFACE   IRRIGATION AND DRAINAGE SYSTEM            Abstract of the Disclosure A riser assembly for a sub-surface irrigation and drainage system is disclosed having a molded, housing defining a generally rectangular, elongated cavity.  A divider within the housing divides the cavity into an upstream chamber and a downstream chamber.  A drainage opening and a whir opening are defined by the divider, and slidable gate valves are disposed over each opening.  By adjusting the positions of the gate valves, the upstream water level cable may be readily adjusted.
Patent CA-1294270-C (CA)
Inventor: BENTLEY RICHARD M
IPC: F24H3/02
Filed: 1987-05-26
Granted: 1992-01-14
Abstract: WATER PERMEABLE HEAT EXCHANGER      FOR CONDENSING FURNACE                      ABSTRACT OF THE DISCLOSURE            A gas-fired condensing furnace with a corrosion resistant condensing heat exchanger.  The condensing heat exchanger is formed from a perforated flat sheet of engineering metal with a layer of polymer sheet material laminated thereto.  Each condensing heat exchanger has a condensing flow passage of serpentine shape formed in the laminated flat perforated sheet of engineering metal such that the polymer layer is permeated by water condensed from the flue gases, and the permeated water flows through the perforated sheet metal and is not allowed to accumulate at the interface between the engineering metal and the polymer sheet.
Patent CA-1303298-C (CA)
Title: Flexible cardiac valvular support prosthesis
Inventor: CARPENTIER ALAIN
IPC: A61F2/24
Filed: 1987-08-04
Granted: 1992-06-16
Abstract: ABSTRACT FLEXIBLE CARDIAC VALVULAR SUPPORT PROSTHESIS         A support for a natural heart valve is disclosed.  The support is generally ring shaped and has a size and shape to fit against the natural heart valve annulus.  First length of the support is flexible, and a second length of the support is less flexible than the first length of the support. Accordingly, when the support is implanted, the support can shape the heart valve annulus and the first length of the support allows contraction of the heart valve annulus therealong.
Patent CA-1294907-C (CA)
Title: Method of recovering beer
Inventor: SWINKELS WILHELMUS J P M
IPC: C12F3/06
Filed: 1987-09-15
Granted: 1992-01-28
Abstract: ABSTRACT OF THE DISCLOSURE         Lager-cellar or fermentation-cellar yeast is mixed with an extraction liquid prior to centrifugal processing, increasing the percentage of recovered beer. To keep the contact time brief the extraction liquid is not mixed with the yeast until just upstream of the intake into the centrifuge. The total requisite volume of extraction liquid is made available in a recirculation tank and circulated through the centrifuge until all the yeast has been processed. The extraction liquid is maintained at a temperature no higher than +2° C. The low temperature and brief contact time prevent the transition of yeast-metabolism products into the extraction liquid.
Patent CA-1319495-C (CA)
Inventor: KASAI KAZUMI
IPC: F16G11/00
Filed: 1987-09-18
Granted: 1993-06-29
Abstract: ABSTRACT OF THE DISCLOSURE     A strap fastener includes a fastener body on which a strap is retained, and a socket member adapted to be mounted on the fabric of a bag to retain the fastener body for connecting the strap to the bag.  The fastener body has a plug with an enlarged head snappingly receivable in a stepped bore formed in the socket member.  The fastener body is rotatable about the axis of the plug with respect to the socket member.  With this construction, the strap is connected to the bag with utmost ease and can be adjusted in a desired posture to suit with the physical characteristics of the user.
Patent CA-1277739-C (CA)
Title: Electrical connectors
Inventor: SEBASTIEN LESLIE
IPC: H01R43/18
Filed: 1987-10-08
Granted: 1990-12-11
Abstract: ELECTRICAL CONNECTORS     Abstract of the Disclosure A one-piece cover for covering open parts of passageways on two opposite sides of an electrical connector housing.  The cover has two hinged cover portions for folding the cover around the housing.  Each cover portion has projections for engagement within closed parts of the passageways and is also resiliently flexible to enable the cover portion to be flexed into position with apertures in the cover portion receiving extensions of walls of the housing which define the open parts of the passageways.
Patent CA-1320662-C (CA)
Title: Method of producing a can end from metal
IPC: B65D17/00
Filed: 1987-11-17
Granted: 1993-07-27
Abstract: Abstract Method of producing a can end from metal A method is described for producing a can end from metal with at least one opening tab to be pushed in towards the inside portion of the can end.  The method of this invention comprises the steps of forming a bulge which is directed upwards, partial punching of the opening tab for leaving a hinged area, displacing of the opening tab in relation to the edge area of the aperture towards the inside of the can end, final reforming of the edge area of the aperture and/or opening tab into a final form, and, if applicable, also coining the edge area of the opening tab so that the edge area of the aperture covers the edge area of the outside of the can end in the form of a ring.  During the complete reforming and, if applicable, the coining operation, the two edge areas are held at a mutual axial distance from each other.
Patent CA-1297057-C (CA)
Title: Method for the production of ribavirin using high ribose donor concentrations
Inventor: POCHODYLO JAMES M
IPC: C12P19/28
Filed: 1988-02-09
Granted: 1992-03-10
Abstract: METHOD FOR THE PRODUCTION OF RIBAVIRIN USING HIGH RIBOSE DONOR CONCENTRATIONS Abstract of the Disclosure A method for the production of A 1,2,4-triazole nucleoside comprising the step of reacting a ribose donor with a triazole compound in the presence of an enzyms preparation derived from Brevibacterium acetylicum is disclosed.  The method is characterized in that the ribose donor is guanosine; the concentration of the donor is above about 100 mM; and the enzyme preparation is added before the reaction mixture gells.  The method is capable of high production rates and high concentrations of the final product.
Patent CA-1283436-C (CA)
Inventor: AGRAWAL GIRIDHARI L
IPC: F16C33/10
Filed: 1988-03-31
Granted: 1991-04-23
Abstract: Abstract Power Shaped Multipad Hydrodynamic Journal Bearing A fixed shape hydrodynamic journal bearing 10 is provided having a plurality of pads 18, each pad having a peak 22, a trough 20, and a curve 24 connecting the peak and the trough, the curve being defined by the equation:  h = r + s (1-.theta.1/.theta.2).alpha..
Patent CA-1335327-C (CA)
Title: Oxide superconductor and manufacturing method thereof
Inventor: KOHNO OSAMU
IPC: H01L39/24
Filed: 1988-04-06
Granted: 1995-04-25
Abstract: The invention relates to a superconducting composition represented by the formula:     A2 - B1 - Cu3 - D7-.delta.     wherein:  the numerals represent molar fractions and the symbol .delta. is a number representing a deficiency of oxygen; A represents Ba having a substitutional element selected from the group consisting of Sr and Ca; B represents Y having a substitutional element selected from the group consisting of Yb, Ho and Er; and D represents O having a substitutional element selected from the group consisting of F and Br; or, alternatively a composition of the formula:     A2 - B1 - C3 - D7-.delta.     wherein A, B and D are the same as above and C represents Cu having a substitutional element selected from Ag and Au.
Patent CA-1315036-C (CA)
Inventor: MARKUSCH PETER H
IPC: C08G18/08
Filed: 1988-05-04
Granted: 1993-03-23
Abstract: AQUEOUS POLYURETHANE-UREAS DISPERSIONS AND THEIR USE    FOR THE PRODUCTION OF COATINGS HAVING IMPROVED             HUMIDITY RESISTANCE ABSTRACT OF THE DISCLOSURE The present invention is directed to stable, aqueous dispersions of polyurethane-ureas which are formed by a)  preparing isocyanate-terminated prepolymers containing about 5 to 190 milliequivalents per 100 grams of polyurathane-urea of chemically incorporated potential anionic groups and/or anionic groups and up to about 10% by weight, based on the weight of the polyurethane-urea, of lateral and/or terminal hydrophilic chains containing ethylene oxide units, b)  converting a sufficient amount of the potential anionic groups to anionic groups either before, during or after preparing the prepolymer such that the blend of step (c) can be stably dispersed in water, wherein at least about 50% of the counterions of the anionic groups are derived from volatile organic compounds, c)  blending said prepolymer either before, during or after step (b) with an epoxy resin which is not dispersible in water and contains at least one epoxide group, such that the equivalent ratio of potential anionic groups and anionic groups having counterions derived from volatile organic compounds to epoxide groups, is about 0.2 to 20.0, d)  dispersing the blend of prepolymer and epoxy resin in water and e)  chain extending said dispersed blend with a polyamine having an average functionality of about 2.0 to 6.0 in an amount sufficient to provide a ratio of amino groups to isocyanate groups of about 0.6:1.0 to 1.0:1Ø The present invention is also directed to the use of the aqueous polyurethane-urea dispersions for the production of coated substrates having improved humidity resistance.
Patent CA-1331988-C (CA)
Title: Pyridazinone derivatives and compositions for controlling and/or preventing insect pests
Inventor: MAKABE TAKAHIRO
IPC: C07D237/14
Filed: 1988-07-28
Granted: 1994-09-13
Abstract: ABSTRACT OF THE DISCLOSURE             A novel 3(2H)-pyridazinone derivative of the formula [I]:                                 [ I ] wherein, R represents an alkenyl group having 2 to 16 carbon atoms, an alkynyl group having 2 to 16 carbon atoms, an alkyl group having 3 to 8 carbon atoms substituted by an alkoxy group having  1 to 6 carbon atoms or G-Ra-;    A represents hydrogen atom,  halogen atom,  an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms,  an  alkylthio  group  having  1  to  4  carbon  atoms,  an alkylsulfinyl group having 1 to 4 carbon atoms or an alkylsulfonyl group having 1 to 4 carbon atoms;    R1 represents hydrogen atom, halogen atom, an alkoxy group having 1 to 4 carbon atoms or hydroxyl group;    X represents oxygen or sulfur atom;      J represents   ,   ,    ,    ,   ,   ,            ,             ,           ,   ,            ,           ,            ,  ,             ,           or    ; as well as insecticidal, acaricidal and nematicidal compositions and compositions for expelling ticks parasitic on animals, said compositions containing as an active ingredient at least one of the above derivatives.
Patent CA-1301140-C (CA)
Inventor: GAFFNEY THOMAS E
IPC: B25G3/30
Filed: 1988-08-30
Granted: 1992-05-19
Abstract: ABSTRACT A decorative handle which is attachable to a rotatable stem and has a decorative insert held therein is disclosed.  In one version, the insert member is retained by a retainer assembly which engages the decorative insert.  The retainer assembly holds the insert against a narrowed open top of the handle from below.  A collar member which is threaded onto the handle from the bottom provides the force to hold the retainer in place.  A decorative handle is provided which can be assembled and disassembled without tools, yet is highly aesthetic as the engage-ment of the component parts is obstructed from view as is a  portion of the attachment to the valve assembly. Further the inserts can be readily changed when the room where the handle is placed is remodeled.
Patent CA-1327541-C (CA)
Title: Electrochemical cell having dual purpose electrode
Inventor: DONG DENNIS F
IPC: C25B9/19
Filed: 1988-10-12
Granted: 1994-03-08
Abstract: ELECTROCHEMICAL CELL HAVING DUAL PURPOSE ELECTRODE          ABSTRACT OF THE DISCLOSURE        An  electrochemical  cell  having  a  dual  purpose electrode assembly  in which  a porous,  self-draining,  gas diffusion electrode is contained within a frame and on both sides  of  said  electrode  there  is  positioned  a  liquid permeable  microporous  diaphragm.   The  electrode  assembly contains an internally positioned current distributor.  The cell has two oppositely charged electrodes separated by said electrode  assembly  which  divided  a  single  electrolyte compartment.   In operation,  electrolyte is flowed into the electrolyte compartment and spent electrolyte is  removed. In  one  embodiment  of  the  invention,  the  electrolyte is internally circulated by turbulent flow of electrolyte as the result of the upward movement of gas released at an electrode.
Patent CA-1315971-C (CA)
Title: Corrosion inhibitor for salt-based deicing compositions
Inventor: GARBER FRANK R
IPC: C09K3/18
Filed: 1988-10-14
Granted: 1993-04-13
Abstract: ABSTRACT OF THE DISCLOSURE A deicing composition is provided which com-prises a solid mixture of sodium chloride and a corro-sion inhibitor comprising a water-soluble divalent metal ion and an alkali metal polyphosphate selected from the group consisting of tripolyphosphate, pyro-phosphate, hexametaphosphate and mixtures thereof, wherein the inhibitor is present in an amount effective to reduce the rate of corrosion of ferrous metals by aqueous sodium chloride solutions.
Patent CA-1307486-C (CA)
Title: Hybridoma production
Inventor: LARGEN MICHAEL T
IPC: C12P21/08
Filed: 1988-10-25
Granted: 1992-09-15
Abstract: IMPROVED HYBRIDOMA PRODUCTION                 ABSTRACT Low protein content, serum-free media, containing hybridoma growth factors, are provided for growth of hybridoma cell lines and antibody production.
Patent CA-1309287-C (CA)
Title: Self-loading pistols
Inventor: SMITH DAVID E
IPC: F41A3/00
Filed: 1988-11-22
Granted: 1992-10-27
Abstract: ABSTRACT       A variable calibre self-loading pistol has a slide carried by a breech block slide of the gun with this slide projecting forwardly of the breech block slide so as to support the underside of a cartridge during initial rearward movement of the breech block slide as that cartridge is being extracted from the chamber.  The slide also assists in preventing premature movement of a fresh round of ammunition upward from a magazine into the chamber.
Patent CA-1313708-C (CA)
Title: Portable antenna
Inventor: BLAESE HERBERT R
IPC: H01Q1/22
Filed: 1988-12-06
Granted: 1993-02-16
Abstract: ABSTRACT OF THE DISCLOSURE      A   portable antenna is provided for mounting on a motor vehicle's side window and enabling easy and rapid mounting and removal.   The portable antenna includes an outer RF transfer member, a current-fed radiator connected to   the outer RF transfer member, an inner RF transfer member, a field-cancelling member operative to cancel the electromagnetic field in the plane of the field-cancelling member,  and a pair of generally parallel wire members pivotally connecting the outer  transfer member  to  the inner transfer member and bridging the inner and outer transfer members so as to overlie the side window when the antenna is mounted thereon.
Patent CA-1329609-C (CA)
Inventor: JAEGGI KNUT A
IPC: C07F9/547
Filed: 1988-12-09
Granted: 1994-05-17
Abstract: Araliphatylaminoalkanediphosphonic acids Abstract Araliphatylaminoalkanediphosphonic acids of formula                     (I), wherein R1 is an aromatically substituted aliphatic radical, R2 is hydrogen or a monovalent aliphatic radical and alk is a divalent aliphatic radical, and their salts, exhibit a pronounced regulatory action on the calcium metabolism and can be used as medicaments for the treatment of diseases that are attributable to calcium metabolism disorders. They are prepared, for example, by reacting a compound of formula        (V), wherein X3 is carboxy and R0 is a radical R2, with phosphorous acid and phosphorus trichloride and hydrolysing the primary product.