baber/WOPTO huggingface dataset:
Patent CA-2003350-A1 (CA)
Title: Human neutrophilic granulocyte end-stage maturation factor and its preparation and use
Inventor: EVANS WARREN H
IPC: C12N5/02
Filed: 1989-11-20
Abstract: HUMAN NEUTROPHILIC GRANULOCYTE END-STAGE MATURATION FACTOR AND ITS PREPARATION AND USE     ABSTRACT OF THE DISCLOSURE                The end-stage maturation of neutrophilic granulocyte precursor cells isolated from normal human bone marrow by Ficoll density centrifugation was studied in a liquid culture assay system used previously to study the maturation of guinea pig granulocyte precursors. Dialyzed normal human serum induced end-stage morphological maturation of human granulocyte precursors and this induction was proportional to a serum level of up to 5.0% in the assay medium. At serum concentrations greater than 5.0% a pronounced inhibition of maturation was observed. Passage of serum through a DEAE-Fractogel 650S column equilibrated with 0.01M phosphate buffer (pH 7.0) resulted in the binding of the end-stage granulocyte maturation factor (GMF) to the column. The activity eluted from the column in a fraction containing 17% of the starting serum protein that was inhibitor-free and was also capable of inducing the appearance of granulocyte alkaline phosphates, a specific biochemical marker for granulocyte end-stage maturation.  GMF is most likely a protein since it was destroyed by protease digestion.  The data also indicate that neither purified human transferrin nor human recombinant granulocyte colony-stimulating factor can substitute for human serum GMF as a granulocyte end-stage maturation factor in this assay system.  It was observed, however, that purified human transferrin greatly potentiated the effect of GMF suggesting that transferrin plays a supporting role in the end stage maturation of human granulocytes in vitro. Taken together the evidence presented here strongly supports the existence of a previously undescribed neutrophilic granulocyte end-stage maturation factor in normal human serum,
Patent CA-2006324-A1 (CA)
Title: Oxygenator wedge configuration
IPC: A61M1/16
Filed: 1989-12-21
Abstract: OXYGENATOR WEDGE CONFIGURATION Abstract of the Disclosure A device having a blood oxygenator and heat exchanger of the outside perfusion type.   The blood oxygenator employs a tightly packed, crisscrossing bundle of gas permeable hollow fibers.   The heat exchanger employs a bundle of polyurethane, liquid impermeable hollow tubes.  A center divider facilitates two separate compartments and allows control over pack densities within each compartment while allowing blood to move in a planar manner throughout the device.
Patent CA-2009314-A1 (CA)
Title: Process for the preparation of thiphene derivatives
Inventor: DAPPERHELD STEFFEN
IPC: C25B3/25
Filed: 1990-02-05
Abstract: Abstract of the disclosure Process for the preparation of thiophene derivatives Selectively  dehalogenated  thiophene  derivatives  are obtained from compounds of the formula II                                            (II) by an electrochemical reaction in a divided electrolysis cell in the presence of a suitable solvent, an onium compound or a compound which is converted into an onium compound in the electrolyte,  and a conducting salt. Thiophene derivatives are important intermediates in the production  of  pharmaceuticals  and  plant  protection agents.
Patent CA-2009755-A1 (CA)
Inventor: HAMBY THOMAS E JR
IPC: A01G23/097
Filed: 1990-02-09
Abstract: Improved pivotal support means is provided for supporting the rectangular support frame of the self-aligning cutter head assembly for pivotal movement in both the vertical and horizontal planes. The improved pivotal support insures that the limb stripping blades and the guide means carried by the rectangular support frame are maintained in parallel alignment with the longitudinal axis of the tree trunk as the tree trunk is being pulled through the tree delimbing device. The rectangular support frame is supported for pivotal movement in the vertical plane and in a cradled relationship on the upper ends of the vertical legs of a support yoke extending beneath the rectangular support frame. The rectangular support frame is supported for movement in the horizontal plane by a pivot extending through the horizontal medial portion of the yoke member and beneath the rectangular support frame.
Patent CA-2014917-A1 (CA)
IPC: H05K1/18
Filed: 1990-04-19
Abstract: ABSTRACT OF THE DISCLOSURE           A shield structure for electromagnetically isolating a the sections of portable or vehicle mounted miniature mobile radio communication equipment, and particularly for separating transmitting and receiving sections.   The transmitting and receiving sections are mounted on distinct printed circuit boards.  The components of a section are placed on one surface (side)  of  the respective printed  circuit board  and  are soldered or otherwise connected on the same surface of the board.  The printed circuit boards with the transmitter and receiver sections are arranged back-to-back such that their other surfaces adjoin or contact each other.   Optionally, additional shielding and insulation may be provided between the other surfaces of the printed circuit boards.
Patent CA-2016046-A1 (CA)
Title: Toner adhesion-enhancing coating for security documents
Inventor: MOWRY WILLIAM H JR
IPC: G03G13/16
Filed: 1990-05-04
Abstract: A coated cellulosic web product and coating composition which provides enhanced toner adhesion for documents printed using noncontact printing devices such as laser printers is provided.  The toner adhesion enhancing coated cellulosic product includes a cellulosic web having first and second major surfaces with at least one of the major surfaces having coated thereon a polymeric toner adhesion-enhancing composition comprising a generally transparent copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C and from about 1 to about 5% by weight zinc as a cross-linking agent for said copolymer. The web may be either continuous or in sheet form.  The toner adhesion-enhancing composition may also optionally include a coloring agent and a plasticizing agent.
Patent CA-2018101-A1 (CA)
Title: Avermectin derivatives
Inventor: MROZIK HELMUT
IPC: C07H17/08
Filed: 1990-06-01
Abstract: TITLE OF THE INVENTION AVERMECTIN DERIVATIVES        ABSTRACT OF THE DISCLOSURE         There are disclosed novel avermectin derivatives wherein the outer oleandrose ring of avermectin or avermectin monosaccharide is homologated by addition of diazomethane to 4"- or 4'-oxo-avermectin to afford the perhydrooxepine derivatives.  The homologated avermectins can then be further derivatized to afford additional novel avermectins.  The new compounds are potent antiparasitic agents, in particular, the compounds are anthelmintic, insecticidal and acaricidal agents.
Patent CA-2023864-A1 (CA)
Title: High strength thermoplastic resin/carbon fiber composites and methods
Inventor: BOBSEIN REX L
IPC: B29C51/18
Filed: 1990-08-23
Abstract: Abstract of the Disclosure High  strength thermoplastic  resin/carbon  fiber  compo-sites and methods of producing such composites are provided. The composites are comprised of carbon fibers,  an amine-terminated poly(arylene sulfide) first resin component, and a second resin component selected from the group consisting of poly(arylene sulfides), polyolefins, polysulfones, poly-ether  sulfones,  polyetherimides,  polyetherketones,  poly-etheretherketones,  polyetherketoneketones,  liquid  crystal polymers, and mixtures of such resins.
Patent CA-2025152-A1 (CA)
Inventor: CAILLY FRANCINET
IPC: C22B3/08
Filed: 1990-09-12
Abstract: L'invention concerne un procédé d'attaque d'un minerai contenant des terres rares. Ce procédé consiste en une attaque sulfurique d'un minerai dans un réacteur puis reprise par une solution de nitrate de calcium dans un autre réacteur, et après élimination des insolubles, récupération des terres rares par un procédé d'extraction liquide/liquide dans une batterie d'extraction.
Patent CA-2027366-A1 (CA)
Title: Electrochemical etching apparatus
Inventor: VISHNITSKY ALEXANDER
IPC: B23H9/06
Filed: 1990-10-11
Abstract: Abstract An electrochemical etching apparatus for an electrochemical rifling machine includes first and second coaxial control rods, first and second disks attached to the first and second control rods respectively, the disks being axially aligned and independently rotatable by the control rods.  The apparatus includes at least one additional disk disposed between the first and second disks and axially aligned therewith, together with an aligning rod coupled between the first and second disks for controlling the rotation of the further disk to align it to a position intermediate the position of the first and second disks.
Patent CA-2029093-A1 (CA)
Inventor: KITAMURA TAKEHIKO
IPC: B29C45/26
Filed: 1990-10-31
Abstract: An injection compression molding method for compact discs or the like, comprising the step of changing the clamping pressure or compression pressure, after the internal cavity pressure in the mold after injection has reached its peak, stepwise or continuously as the cooling proceeds, thereby making the applied pressure per unit area with respect to the effective pressure range constant.  In a compact disc formed by this method, the residual stress after cooling is uniform, so that its optical properties are improved substantially.
Patent CA-2029893-A1 (CA)
Title: Method and apparatus for auction market trading
Inventor: BELDEN GLEN W
IPC: G06Q30/08
Filed: 1990-02-16
Abstract: A method and apparatus for market trading is disclosed, the apparatus generally comprising a host processor and a plurality of user terminals in selective communication with the host. Each user terminal includes a selectively partitionable display (205-1, 5, 6, 206, 207) by which market information is conveyed to a participant. Among other features, the method involves the use of icons (205-2, 3) for representing traders, each icon including information relevant to the commodity being traded. The method and apparatus are applicable to markets for trading commodities such as securities, securities options, futures contracts and futures options.
Patent CA-2030133-A1 (CA)
Title: Pyridazine derivatives, process for their preparation and pharmaceutical compositions containing them
Inventor: BOIGEGRAIN ROBERT
IPC: C07D487/04
Filed: 1990-11-16
Abstract: ABSTRACT OF THE DISCLOSURE           The  invention  relates   to  pyridazine  derivatives  of formula :                   (I) in which : -Ar  represents  a  phenyl group substituted by R1  and  R2  or  a heterocyclic  radical  such as a pyridyl  group, unsubstituted or substituted  by  methyl   or   methoxy,   or   a  thienyl  group, unsubstituted or substituted by chlorine, methyl or methoxy ; -R1  and  R2   each   independently   denotes  hydrogen,  halogen, trifluoromethyl, hydroxyl, C1-C4 alkoxy or C1-C4 alkyl ; -R3  represents linear or branched C1-C4 alkyl, C3-C7 cycloalkyl, benzyl,  phenethyl  or   the   Ar'   radical,  Ar'  being  phenyl substituted by R1 and R2 ; -R4 represents :   a                        group, with n = 0 or 1 in which X1 represents hydrogen or methyl ; -R5 represents a C1-C6 linear alkyl group ; -R6  represents  a  C1-C6 linear alkyl group, or R5  and  R6  also constitute  with the nitrogen atom to which they are  attached  a heterocycle selected from morpholine, pyrrolidine or piperidine ; as well as its salts with mineral or organic acids.          The above compounds are useful as drugs, notably as drugs active on the cholinergic receptors of type M1.
Patent CA-2030878-A1 (CA)
Title: Nonlinear optical materials
Inventor: KESTER JOHN J
IPC: G02F1/355
Filed: 1990-11-26
Abstract: ABSTRACT     The present invention is directed to epoxy-based polymeric nonlinear optical materials in which a nonlinear optically active moiety or functionality forms the crosslink between polymer chains and a process for making the nonlinear optical (NLO) epoxy polymer including heating an epoxy resin and a curing agent such as a bi- or tri-functional aromatic amine containing an electron-withdrawing group, for example, diamino diphenylsulfone and poling the mixture under high voltage at elevated temperature for a period of time to bring about orientation of the nonlinear optical moieties in the polymer.  The polymers have enhanced stability over polymers in which only one end of an NLO active moiety is attached to the polymer chain. 37,729-F
Patent CA-2036778-A1 (CA)
Inventor: GRULA GREGORY J
IPC: H01L21/762
Filed: 1991-02-20
Abstract: In a semiconductor substrate, a method of forming a shallow isolation trench having a doped sidewall is disclosed.          A shallow trench having nearly vertical walls is formed in the semiconductor substrate.  A doped silicon layer is selectively grown on a sidewall and a portion of the bottom of the trench.          The dopant from the silicon layer is then driven into the substrate by a suitable method such as annealing.  The trench is subsequently filled with a dielectric material.
Patent CA-2039013-A1 (CA)
Inventor: GANDI SEGHAIER
IPC: C07F9/09
Filed: 1991-03-25
Abstract: L'invention porte sur un composé de phosphore des formules (I) à (VI): (I) (II) (III) (IV) (V) (VI) m = entier de 1 à 10,et sur un additif d'ignifugation des polymères constitué essentiellement (A) d'au moins un composé précité et/ou d'au moins un composé du phosphore obtenu par réaction du pentoxyde de phosphore avec un alcool contenant au moins deux fonctions OH, et, pour 100 parties en poids (pp) du composé (A), (B) 0-500 pp d'au moins une résine formoparacrésolique (VII): (VII) n = entier de 1 à 10,et (C) 0-1 pp d'hydrogénocarbonate de sodium.
Patent CA-2039960-A1 (CA)
Title: Push back procedure for preventing drop-former droplet formation in a vacuum assisted solution transfer system with upstream occlusion
Inventor: LEWIS ROBERT
IPC: B08B9/027
Filed: 1991-04-08
Abstract: A device for vacuum-assisted transfer of fluid from one container to another via a conduit and having an occluder positioned between the containers includes apparatus and method for clearing fluid from the conduit downstream of the occluder by forcing the fluid upstream of the occluder.
Patent CA-2041151-A1 (CA)
Title: Building panel and method
Inventor: MEYERSON STEVEN C
IPC: E04C2/292
Filed: 1991-04-24
Abstract: A joint, in one embodiment, between adjacent panels of sheet encased insulating material in which one lateral edge has an essentially frustoconical nose, and the other edge has a frustoconical pocket is disclosed. In an alternative embodiment, essentially frustoconical noses are at both lateral edges and the two adjacent panels are joined by means of an I beam embodying the interlock of the present invention. In both embodiments, the interlacking relationship is a function of the lateral edges of the cladding sheet, or the flange of an I beam, in which one edge has a sealant pocket, and the apposite edge has a locking sealant press which engages the sealant pocket and thereby interlocks the panels as well as presses the sealant in the sealant pocket to compress and secure the same and to form a sealant gasket between the lateral edges of the sealant pocket and the locking sealant press. the method of the invention contemplates the steps of providing adjacent building panels with sealant packets in a seal press, and thereafter filling the sealant pocket with a predetermined amount of sealant to the end that when the joints are compressed together, there will be sufficient excess sealant material to be extruded by the sealant press lock to form gaskets or fins between the sidewalls of the sealant pocket and the sidewalls of the locking sealant press. The invention further contemplates the provision of a stabilizer reversely folded on one edge of the sealant press to overly and snap-fittingly and centeringly engage the adjacent ramp. Tn essence the two opposed stabilizers serve as a vice to grip the two opposed ramps when the adjacent panels are assembled with the sealant in the sealant pocket.
Patent CA-2041236-A1 (CA)
Title: Composant d'optique integree et procede de fabrication
Inventor: HAKOUN ROLAND
IPC: G02B6/30
Filed: 1991-04-25
Abstract: Le composant d'optique intégrée, à substrat en verre (1) comportant des guides d'ondes en optique intégrée (1) est caractérisé en ce que le substrat comporte, en outre, des rainures longitudinales (13, 14, 15) de part et d'autre d'une partie centrale (6) du substrat, qui sont issues d'usinage en utilisant les parties terminales des guides s'étendant au delà de cette partie centrale comme repères à leur tracé, et deux rainures transversales (7, 8 ; 17, 18), de chaque côté de la partie centrale du substrat, avec entre elles une nervure rectifiée en hauteur (9, 19), pour le maintien de chaque fibre à raccorder au guide d'ondes débouchant de ce côté.
Patent CA-2042715-A1 (CA)
Inventor: MAY RANDALL L
IPC: F16M11/28
Filed: 1991-05-16
Abstract: An adjustable tripod stand having independently adjustable legs comprises an upright portion for supporting an object at its upper end, independently movable collar members slidably mounted on the upright portion which are longitudinally adjustable relative to one another and to the upright portion for selective positioning, releasable fasteners on the collars for securing them to the upright portion at selected positions, and movable leg members operatively connected at their upper ends to different ones of the collar members and independently movable by the collar members for selective independent longitudinal positioning and radial extension relative to the upright portion and to one another. The stand may be erected in limited or confined areas, on multi-level surfaces, and level surfaces, anti the positioning of said collars alloys the longitudinal axis of the stand to be disposed in an off-vertical axis position for positioning the center of gravity of the supported article relative to the center of the supporting legs. The stand may also include a support member telescoped inside the upright portion and a fastener releasably securing the telesacaging members together and comprising a clamp member, a lever member pivotally mounted an the clamp member with a multi-planar camming surface between the upper end and a resilient member disposed between the clamp member and a lever hand grip portion, and having a camming surface sectioned into three distinct angular planes, such that he support member is more easily supported at and released from different position.
Patent CA-2043596-A1 (CA)
Inventor: KAHARU TAKEO
IPC: H04B10/29
Filed: 1991-05-30
Abstract: First and second optical couplers are inserted in linear bus type first and second data buses for transmission to right and left, respectively, by which each terminal equipment is connected to the first and second data buses.  In the terminal equipment first and second monitor pulses are generated by a monitor pulse generator at different points of time in a low-level period of a frame synchronizing signal of each frame forming data to be transmitted, by which first data to be transmitted, appended with the first monitor pulse, and second data to be transmitted, appended with the second monitor pulse, are formed and are provided to the first and second optical couplers, respectively.  The optical data signals branched from the first and second optical couplers are received by a common photodetector. A monitor pulse detector outputs an error flag when it detects either one of the first and second monitor pulses in the received signal.
Patent CA-2043907-A1 (CA)
Title: System for isolating a dump
Inventor: PAURAT FRIEDRICH W
IPC: E02D31/00
Filed: 1991-06-05
Abstract: Abstract of the Disclosure A system for isolating a dump sitting on the ground has three different structures which are installed under the dump sequentially, as needed.  The first structure includes a tunnel driven longitudinally through the ground underneath the dump and an array of drainage pipes passing through the ground and each having a lower end opening into the tunnel and an upper end at the surface.  The second structure includes a water barrier in the ground around at least some of the drainage pipes.  The third structure includes a water-impervious mass of backfill in a slit underneath the barrier and having a lower end at the tunnel and an upper end at the surface.
Patent CA-2044652-A1 (CA)
Title: Polymer scale preventive liquid and method of preventing polymer scale deposition
Inventor: SHIMIZU TOSHIHIDE
IPC: C08F2/00
Filed: 1991-06-14
Abstract: ABSTRACT OF DISCLOSURE         A polymer  scale  preventive  liquid  for  use  in polymerization of a monomer having an ethylenic double bond, comprising (A) a protein and (B) an anionic polysaccharide, and having a pH 7 or less; and a method of preventing polymer scale deposition in a polymerization vessel, which comprises carrying out the polymerization of said monomer in a polymerization vessel having a coating on its inner wall surfaces by applying said liquid and then drying. Deposition of polymer scale can be effectively prevented; in addition, polymers with a high whiteness can be prepared. Moreover,  this  polymer  scale preventive  liquid has  no poisonousness and is-highly safe.
Patent CA-2046238-A1 (CA)
Title: Device for conveying piece goods
Inventor: STRASSER KARL-HEINZ
IPC: A23L13/60
Filed: 1991-07-04
Abstract: TITLE OF THE INVENTION:      A DEVICE FOR CONVEYING PIECE GOODS          ABSTRACT OF THE DISCLOSURE:    A device  for conveying piece  goods  to  a transfer station is provided whereby the device has a drivable continuous conveyor belt with at least one endless guide belt that is provided parallel  to a  longitudinal  direction  of  the conveyor belt.  A guiding surface of each one of the   respective   guide   belts   is   disposed perpendicularly to a conveying surface of the conveyor  belt  and  is  synchronously  drivable relative to a conveying direction of the conveyor belt.  Due to this embodiment very sensitive piece goods may be conveyed without the piece goods sliding off the conveyor belt and without damaging the piece goods at the guide belts that provide the lateral limitation of the conveying belt.  A relative movement between the piece goods and the lateral limitation is prevented.
Patent CA-2047983-A1 (CA)
Title: Smoking compositions containing a vanillin-release additive
Inventor: HOUMINER YORAM
IPC: C07C69/017
Filed: 1991-07-26
Abstract: ABSTRACT OF THE DISCLOSURE         This invention provides smoking compositions which contain a novel vanillyl 5-hydroxyester flavorant-release additive.         Under cigarette smoking conditions, a combustible filler and/or paper wrapper additive such as 4'-formyl-2'-methoxyphenyl 5-hydroxy-2-isopropylhexanoate pyrolyzes into vanillin and 2-isopropyl-5-hydroxyhexanoic acid delta lactone flavorants as volatile components of the cigarette smoke.
Patent CA-2049153-A1 (CA)
IPC: G07F13/06
Filed: 1991-08-13
Abstract: In an arrangement according to the invention, two measurement electrodes (S1, S2) are arranged in a container (1) at different horizontal and vertical distances from an electrically conductive inner wall, connected to earth, of the container (1), one of which is in the region of the ice coating which forms. The measurement electrodes (S1, S2) pick off resistance values (RE, RW) of the ice and/or of the water which is located between the electrodes (S1, S2) and the container inner wall. 
<??>In order to cool the water, irrespective of its chemical-physical composition, suitable potentials are formed on the resistors (RE, RW), which potentials are supplied to a differential amplifier (DVK). A cooling set (M, VD) which acts on the contents of the container is switched on or off as a function of a comparison of the magnitudes of both resistance values (RE, RW). 
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