baber/WOPTO huggingface dataset:
Patent CA-1230205-A (CA)
Inventor: HISTED JOHN A
IPC: D21C/
Filed: 1984-03-28
Granted: 1987-12-15
Abstract: ABSTRACT OF DISCLOSURE            A process for the rapid bleaching of pulp in which well-chlorin-ated pulp is formed into a sheet on a moving foraminous surface and subjected to washing and a rapid alkaline extraction ahead of an alkaline oxidative bleach stage such as oxi-dative extraction with oxygen, peroxide or hypochlorite.          The rapid alkaline extraction step is performed on the foraminous surface and the alkaline oxidative bleach step is performed in a retention vessel with 2 to 20 minutes retention time.  The pulp leaving the retention tube is sheeted on a second foraminous surface where it is subjected to washing before proceeding through further bleaching stages.
Patent CA-1251588-A (CA)
Title: POLYMERS WITH GRAFT .alpha.-ALKYLACRYLATE FUNCTIONALITY
Inventor: LIN SAMUEL Q S
IPC: C08L83/04
Filed: 1984-07-19
Granted: 1989-03-21
Abstract: A B S T R A C T    Polymers having ?-alkylacrylate functionality may be prepared by hydrosilating an olefinically unsaturated polymer with a grafting agent of structure (A) or (B):                     (A) (B) where R1 is an alkyl group; R2 is a divalent group nonreactive under hydrosilation conditions; n is 0, 1, 2, 3, or 4; x and y are 0, 1, 2, 3 or 4 and x+y=1, 2, 3 or 4; and, the R3 groups are the same or different alkyl, substituted alkyl, aryl, sub-stituted aryl or       groups.                            Preferred olefinically unsaturated polymers include homo-polymers and copolymers of butadiene or alkyl substituted buta-diene and polyorganosiloxanes with unsaturated hydrocarbonyl groups such as vinyl or allyl.
Patent CA-1214487-A (CA)
Inventor: DAY JAMES C
IPC: H01J29/50
Filed: 1984-07-26
Granted: 1986-11-25
Abstract: ABSTRACT          "Colour cathode ray tube with an electron gun and method of manufacturing such a gun."     Abstract of the disclosure In-line electron gun structure for color cathode ray tubes in which the final focusing and accelerating electrodes each employ three in-line tapered, partially overlapping apertures in facing relationship, and at least one pair of integral electron beam correctors associated with the central aperture of the focusing electrode. Such structure is produced by deep drawing a workpiece having an hour-glass shaped hole for each corrector pair desired.
Patent CA-1207848-A (CA)
Inventor: PETRICH DENNIS M
IPC: G01R27/28
Filed: 1984-08-17
Granted: 1986-07-15
Abstract: ABSTRACT An improved delay lock loop which has first and second means (32,34) for generating a voltage ramp, the first ramp generator (32) providing a train of ramped inputs to first time delay means (38) responsive to a first input pulse train and the second ramp generator (34) providing a train of ramped inputs to a second time delay means (40) responsive to a second input pulse train.  The ramp generators (32, 34) provide a highly linear voltage ramp.  First and second retrace means (36A, 36B) are connected to the first and second ramp generators (32, 34) respectively and act to limit the ramps to a certain voltage, commanding the ramp generators (32, 34) to return to a reference voltage to await the succeeding input pulse edge transition,  A further improvement comprises range switch means (44) that function to selectively control the maximum range of time delay which the delay lack loop is able to sense. This permits selecting a greater or lesser range of time which the delay in time intervals between the edge transitions of the pulses in the first and second input pulse in the first and second input pulse trains can have and still be measured.  Additionally, calibrator means (26) are incorporated which provide signals to the delay lock loop and ancillary electronics to determine the delay inherent in these devices.  This delay is stored and subtracted from the delay determined by the delay lock loop to increase the accuracy.  The calibrator (26) additionally very accurately determines the voltage difference between the voltage representing zero volts on the ramp and the voltage representing full scale on the ramp to very accurately determine the voltage span representative of the selected range.
Patent CA-1230619-A (CA)
Inventor: TABAK SAMUEL A
IPC: C10G50/00
Filed: 1984-08-22
Granted: 1987-12-22
Abstract: ABSTRACT            A reactor sequencing technique is provided for multi-stage hydrocarbon conversion systems employing a number of fixed bed catalytic reactors at various process temperatures and catalytic activity levels.  A process for oligomerizing lower olefins (e.g., C2-C6) is disclosed wherein catalyst partially inactivated in a primary stage is employed to effect conversion at higher temperature in a secondary stage prior to catalyst regeneration.
Patent CA-1228277-A (CA)
Inventor: BAYERLEIN FRIEDRICH
IPC: C06B23/00
Filed: 1984-09-13
Granted: 1987-10-20
Abstract: ABSTRACT OF THE DISCLOSURE:       The invention relates to gelling agents and thickeners based on Cassia-galactomannans and comprising a synergistic mixture of (a) Cassia-galactomannan, and (b) carrageenan, agar andlor xanthan.
Patent CA-1216374-A (CA)
Title: Silicon gigabit metal-oxide-semiconductor device  processing
Inventor: KO PING K
IPC: H01L21/31
Filed: 1984-11-21
Granted: 1987-01-06
Abstract: SILICON GIGABIT METAL-OXIDE-SEMICONDUCTOR             DEVICE PROCESSING Abstract In a metal-oxide-semiconductor device process, parasitic capacitance is significantly reduced by producing a spacer of insulating material (e.g., 41, 42) on a gate mesa (e.g., 22) and exposed portions of a substrate (e.g., 14 and 15), by differentially oxidizing a substrate and a gate mesa thereon prior to ion implantation and "drive-in" of the drain and source regions (e.g., 13 and 11, respectively, and 12).  This results in a channel region being formed in the substrate beneath and substantially coextensive with the gate mesa.  The conductivity of the channel region is different from the conductivity of the adjacent source and drain regions.  In one embodiment, the source and drain regions each extend to a greater depth into the substrate with increasing distance from the channel region.  (FIG 3)
Patent CA-1231695-A (CA)
Title: Base for supporting an upright post of a garden umbrella or the like
Inventor: BERNEY SHELDON
IPC: E04H12/22
Filed: 1984-11-21
Granted: 1988-01-19
Abstract: "BASE FOR SUPPORTING AN UPRIGHT POST OF A GARDEN UMBRELLA OR THE LIKE"          ABSTRACT OF THE DISCLOSURE  A base for a garden umbrella is formed from a lower receptacle portion and an upper lid portion which interconnect with a snap ring around the periphery of an upper wall of the receptacle portion.  A plinthe central-ly of the lower portion cooperates with a collar central-ly of the lid portion to locate a tube which guides the post of the garden umbrella to sit on the plinthe.  The assembled base can then be filled with a suitable fluid ballast material.
Patent CA-1228913-A (CA)
Inventor: VAN DAELE JEAN A
IPC: H04N1/409
Filed: 1984-11-28
Granted: 1987-11-03
Abstract: L'invention concerne un circuit sanguin extracorporel pour poumon artificiel. Le poumon artificiel est intercalé  entre deux pompes dont le débit est sensiblement proportionnel à la pression du liquide aspiré. Le circuit est utilisé en assistance ou suppléance pulmonaire, cardiaque ou cardio-pulmonaire.   Le fonctionnement du circuit est à la fois simple et sûr e t de plus ne nécessite aucun conduit de déviation pour l'équilibrage des débits sanguins.
Patent CA-1234556-A (CA)
Inventor: HENNON ERIN D
IPC: B65D59/00
Filed: 1984-12-05
Granted: 1988-03-29
Abstract: Title Protective Cover Assembly Abstract of the Disclosure A protective cover assembly provides protection for an external surface of a tubular member.  The assembly includes a cover having an axially extending annulus which overlies the external surface of the tubular member.  The cover also includes an elongate projection disposed for axial extension into the bore of the tubular member.  A retainer for the cover is defined by a support flange having an axially extending portion which carries a radially extending segmented flange.         The segmented flange frictionally engages the elongate projection to retain the cover about the tubular member.  In one preferred embodiment, the tubular member is an end yoke of a universal joint, and the external surface to be protected is a ground bearing sleeve.  In another, the tubular member is a companion flange of a universal joint.
Patent CA-1258623-A (CA)
Inventor: TCHEN PAUL
IPC: C07H21/00
Filed: 1985-01-15
Granted: 1989-08-22
Abstract: ABSTRACT OF THE DISCLOSURE     The invention relates to a kit for detecting the presence of a nucleic acid sequence, such as a gene or a gene fragment, in a composition or a specimen supposed to contain it. The kit comprises a novel probe containing a nucleic acid complementary with the nucleic acid sequence or gene which is sought. The probe bears at least one 7-iodo-N-2-acetylamino-fluorene group covalently fixed at one at least of the bases of this probe. The kit also comprises antibodies which can react with either N-2-(guanosine-8-yl)-acetylamino-fluorene, or antibodies previously prepared against a nucleic acid sequence modified by a N-2-acetylamino-fluorene group. The kit of the present invention is therefore useful for the systematic research of particular nucleotide sequences in a particular biological system, and even more generally, in any preparation formed in vitro .
Patent CA-1243683-A (CA)
Inventor: KAMIGUCHI TAIJI
IPC: C07B61/00
Filed: 1985-01-29
Granted: 1988-10-25
Abstract: ABSTRACT OF THE DISCLOSURE    A process for producing acetic acid directly from ethylene under mild conditions is provided, wherein ethylene and oxygen are respectively coordinated with the respective transition metals contained in a specified composite catalyst system, and ethylene activated thereby is successively oxidized by two kinds of oxygen complexes contained in the system and having their electric charge states adjusted, the composite catalyst system comprising a complex represented by a fomula (MmXn.L?) and a complex represented by a formula (M'm'Xn' L'? ') wherein  is a transition metal of the groups I, IV - VII and iron group;          X, an anion; L, an organic phosphorus compound as a ligand;          M', a transition metal of Pt group; L', a nitrile, organic fluorine compound or organic phosphorus compound as a ligand; m, m', n and n', each a number determined by the valences of the transition metals and anion; and ? and ?' each the number of ligands.
Patent CA-1232811-A (CA)
Inventor: SULEPOV EUGENIO PONOMAR
IPC: A61B17/22
Filed: 1985-03-05
Granted: 1988-02-16
Abstract: ABSTRACT OF THE DISCLOSURE                 Surgical instrument for transjugular venous thromboectomy, characterised in that it comprises two tubes placed in a parallel, back-to-back relation-ship, one of the ends of the longer tube terminating in a stopper provided with two axial holes, whilst the other end has a widening provided with two side rings in dia-metral opposition, the end of the shorter tube having an oblique bending close to the widening of the longer tube, whilst its other end does not reach the longer tube;  a rod within the longer tube, the end of which, protruding from the widening, terminates in a ring, and the free end of which has a clamp which presses the ends of a steel cable passing through the axial holes of the stopper, forming a loop whose eye is increased or reduced until it is closed; the axial displacement of the stem is guid-ed, without rotation, in the widening;  a wire fixed to the straight end of the shorter tube, the free end of which is rotatingly secured to the mid point of the loop, as well as a tubular network, one of the openings of which is fixed to that of the shorter tube and the other to the steel cable of the loop, the wire being placed tan-gentially inwards of the network whose generatrix, in contact with the longer tube, is joined thereto; a screw for fixing the moving position of the rod.
Patent CA-1245958-A (CA)
Inventor: JOUSTRA MARIUS
IPC: G01N33/52
Filed: 1985-03-11
Granted: 1988-12-06
Abstract: Abstract A method for determining the alcohol consumption of an individual by means of quantifying isotransferrin combinations in the individual's body fluids, these combinations being (A) isotransferrins having a pI higher than 5.6 or (B) isotransferrins having a pI higher than 5.8 or (C) isotransferrins having a pI higher than 6Ø The total concentration of any of said combinations (A), (B), (C) is a measure of the said invididual's alcohol consumption during the last few weeks.            AL-HB/pb/sl 1985-02-05 *
Patent CA-1240216-A (CA)
Inventor: SCRUGGS DAVID M
IPC: C22C45/00
Filed: 1985-04-26
Granted: 1988-08-09
Abstract: MATERIALS TRANSFORMABLE FROM THE NONAMORPHOUS TO THE AMORPHOUS STATE     UNDER FRICTIONAL LOADINGS                   ABSTRACT         A process  for protecting  an article from wear, wherein a frictionally transformable material is provided at the surface of the article, and then the surface of the article is subjected to frictional wear. The wear transforms the outermost layer of the material to the amorphous state, which is more wear resistant and corrosion resistant than is the material in its non-amorphous state.   As the material is worn away grad-ually, the frictional transformation continues, thereby replenishing the amorphous outermost layer, so that a protective outermost layer remains.   A particularly satisfactory  frictionally  transformable material  con-sists essentially of from about 40 to about 75 weight percent of a first component selected from the group consisting of iron, cobalt,  and combinations thereof; more than about 20 weight percent of a second component selected from the group consisting of chromium, molyb-denum, tungsten, niobium, vanadium, and combinations of chromium, molybdenum, tungsten, niobium, vanadium, and titanium; and from about 2 to about 6 weight percent of a third component selected from the group consisting of boron, carbon, and combinations thereof.
Patent CA-1257542-A (CA)
Inventor: VALKIRS GUNARS E
IPC: G01N/
Filed: 1985-05-13
Granted: 1989-07-18
Abstract: ABSTRACT         Disclosed herein is an apparatus and process for conducting ligand receptor assays.  The apparatus comprises a first member which is a membrane or a filter to which is bound a receptor for the ligand or which is capable of extracting cells carrying the ligand from a fluid sample.  The apparatus further comprises a second member which is composed of absorbent material which acts when in contact with the first member to induce flow through the first member when a fluid sample is added to it.  The apparatus is used to conduct assays by applying a sample to the upper surface of the first member to bind ligand in the sample by means of receptor fixed to the first member or, in certain cases, by extracting cellular material which has ligand associated with it.  Addition of the sample is typically followed by addition of labeled antibody against the antigen being assayed followed by a washing step to remove unbound labeled receptor.  The presence of labeled antibody on the first member after washing is indicative of the presence of the antigen in the sample being assayed.          In a preferred embodiment of the invention, the ligand is an antigen and the receptor is an antibody.
Patent CA-1271751-A (CA)
Inventor: TSUDA YOSHINAO
IPC: A61P9/04
Filed: 1985-05-16
Granted: 1990-07-17
Abstract: Abstract of the Disclosure A dihydroimidazo[1,2-.alpha.]pyrimidine derivative of the formula:               wherein R is hydrogen, C1-5 alkyl, heteroaryl, 2,1,3-benz-oxadiazolyl or phenyl which may be substituted by a substi-tuent selected from halogen, C1-4 alkyl, trifluoromethyl, C1-4 alkoxy, nitro and cyano;    R1  is cyano, C1-4 alkoxy-carbonyl or -COOCH(R5)CH2R6 [wherein R5 is hydrogen or aryl and R6 is C1-4 alkoxy or -N(Ra)(Rb)  (wherein each of Ra and Rb is C1-4 alkyl or aralkyl, or Ra and Rb together with the adjacent nitrogen atom form a heterocycle)];    R2  is C1-4 alkyl, hydroxymethyl, acetoxymethyl, di-C1-4 alkoxy-methyl, C1-4 alkyl-carbamoyloxymethyl or hydroxyimino-methyl; R3  is C1-4 alkyl, formyl, carboxyl, nitro, -N(R7)(R8) (wherein each of R7 and R8 is hydrogen, C1-8 alkyl, aryl, aralkyl or acyl, or R7 and R8 together with the adjacent nitrogen atom form a heterocycle), -OR9  or -SR10   (wherein each of R9 and R10 is hydrogen, C1-8 alkyl, aralkyl or acyl);    R4  is hydrogen or -(CH2)mN(Rc)(Rd)  (wherein each of Rc and Rd is C1-4 alkyl  or aralkyl, or Rc and Rd together with the adjacent nitrogen atom form  a heterocycle and m is 1 to 3;     n is 0 or 1 to 3 inclusive or an optical isomer thereof, a diastereomer thereof and compounds selected from the group consisting of pharma-ceutically acceptable acid addition salt forms thereof, hydrate forms thereof and mixtures thereof, methods of preparing said compounds and pharmaceutical compositions containing said compounds are disclosed.     The dihydroimidazo[1,2-a]pyrimidine derivatives are useful as drugs for the treatment of coronary and cerebral circulatory diseases.
Patent CA-1236968-A (CA)
Inventor: BARNES ALBERT L
IPC: C04B35/58
Filed: 1985-05-21
Granted: 1988-05-24
Abstract: METAL BORIDES, CARBIDES, NITRIDES, SILICIDES, OXIDE MATERIALS AND               THEIR METHOD OF PREPARATION                 Abstract of the Disclosure Precursors, particularly of non-oxide ceramics, are prepared by special seeding, under carefully controlled conditions.  Such procedures can lead to the preparation of unique powders, which may be useful, for example as abrasives, or further processed in special manner to prepare a variety of metal substances.  Such procedures can permit final firing to sintered product.
Patent CA-1243539-A (CA)
Inventor: TSE HING-CHEUNG
IPC: A23F3/16
Filed: 1985-05-24
Granted: 1988-10-25
Abstract: PROCESS FOR PREPARING TEA PRODUCTS     Abstract of the Disclosure The present invention comprises a process for the preparation of shelf-stable tea concentrates and tea powders wherein a tea extract is prepared, acidified, and heated; off-flavor and malodorous compounds are removed from the extract; the extract is cooled and precipitates are removed from it; and flavoring and sweetener are blended with the clarified extract. The acidiflcation and heating steps accelerate acid-catalyzed degradation reactions that normally occur causing the development of off-flavor sulfurous compounds and precipi-tates. By forcing these components to react, removing the resultant volatile compounds, and separating the precipitates formed, the development of these off-flavors, off-aromas, and precipitates in the resultant tea product is prevented. The tea product is shelf stable and use of preservatives such as antioxidants or antimicrobial agents is not needed.
Patent CA-1255159-A (CA)
Inventor: HYODO TOHRU
IPC: D05B69/12
Filed: 1985-07-30
Granted: 1989-06-06
Abstract: ABSTRACT OF THE DISCLOSURE    In the invention, the sewing machine carries out winding of the thread by operating separately a thread winding mecha-nism and a clutch mechanism.  A speed detector provided to a mechanism is relative with rotation of an upper shaft.  If the thread winding were carried out t while said mechanism is left as engaged with a power source of the sewing machine, the speed detector would detect the rotation of said relative mechanism to stop a machine motor instantaneously, so that the thread winding cannot be performed when said relative mechanism is not released from the power source, and the needle bar is not actuated at winding the thread for safety in operation.
Patent CA-1261673-A (CA)
Inventor: MEISTER SIEGFRIED
IPC: A23L5/10
Filed: 1985-07-31
Granted: 1989-09-26
Abstract: ABSTRACT      The invention relates to a process for operating an apparatus having a cooking area for the heat treatment of food, the heated cooking area being at least partly actively cooled prior to the introduction of new food.      The invention also relates to an apparatus for the heat treatment of food with a cooking area, in which an inadequate cooking area temperature can be indicated prior to starting a heat treatment, e.g. by means of an optical and/or acoustic signal generator and/or whose cooking area is at least partly actively coolable.
Patent CA-1262232-A (CA)
Inventor: WELLS LAURA M
IPC: C08J3/02
Filed: 1985-08-29
Granted: 1989-10-10
Abstract: PROCESS FOR DRYING POLYMERIC BEADS AND         ASSOCIATING SHADING PIGMENTS THEREWITH                       ABSTRACT        A process for drying a water-wet paste containing polymeric beads without agglomeration is disclosed in which there is added to the wet paste a proportion of an organic solvent which forms an azeotrope with water, such as methyl isobutyl ketone, in an amount providing a stirrable mixture, and the solvent-containing aqueous paste is heated to remove the water as an azeotrope with the solvent and to produce a water free suspension of the beads in organic solvent.  The proportion of azeotropic solvent can be minimized by adding a resinous vehicle in organic solvent solution to the solvent-containing aqueous paste after substantially all the water has been removed, and continuing the application of heat to remove undesired organic solvent and thereby increase the solids content.  As a feature of the invention, a pigment which is incompatible with the azeotropic solvent, such as an aqueous dispersion of lamp black, is added to the aqueous paste either before or after the addition of azeotropic organic solvent to be present while the water is azeotropically removed to avoid flooding.
Patent CA-1260018-A (CA)
Inventor: EDWARDS CHARLES L
IPC: C07C41/00
Filed: 1985-10-15
Granted: 1989-09-26
Abstract: A B S T R A C T               ALKOXYLATION PROCESS USING   BIMETALLIC OXO CATALYST      Alkylene oxide adducts of organic compounds having an active hydrogen are prepared by a process in which an active hydrogen reactant and an alkylene oxide reactant are reacted in the presence of a catalytically effective amount of one or more bimetallic oxo compounds of the formula (RO)nM-O-M'-O-M(OR)n, wherein each R is (independently) an optionally-substituted organic moiety, M' is a divalent metal selected from the elements of Groups VIII, Ib, IIb, IIIb, and IVb of the Periodic Table, each M is (independently) a trivalent or tetravalent metal, and each n is 2 if the adjacent M is trivalent or 3 if the adjacent M is tetravalent. The products are useful, for instance, as nonionic surfactants in detergent formulations. In certain preferred embodiments, the process yields a product having a very desirable distribution of alkylene oxide adducts.
Patent CA-1249764-A (CA)
Inventor: WADA TOSHIYA
IPC: C21D8/12
Filed: 1985-10-15
Granted: 1989-02-07
Abstract: GRAIN-ORIENTED ELECTRICAL STEEL SHEET HAVING A LOW         WATT LOSS AND METHOD FOR PRODUCING SAME     ABSTRACT OF THE DISCLOSURE     Method for subdividing the magnetic domains of a grain-oriented electrical steel sheet is improved so that the watt loss can be further lessened and the watt-loss improving effect does not disappear during stress relief annealing.  An intrudable means is formed on the finishing-annealed steel sheet on or in the vicinity of strain which promotes the intrusion of an intrudable means.  Sb or Sb containing material is a preferred intrudable means and the laser irradiation is a preferred method for imparting the strain and also for attaining the removal of a surface coating.