baber/WOPTO huggingface dataset:
Patent CA-1318690-C (CA)
Title: Iodine-containing compound, preparation thereof and block copolymer comprising the same
Inventor: TATEMOTO MASAYOSHI
IPC: G11B5/725
Filed: 1987-12-24
Granted: 1993-06-01
Abstract: Abstract:           An iodine-containing compound consisting of at least two repeating units selected from the formulae:       -(CH2CF2CF2O)a--(CHClCF2CF2O)b--(CCl2CF2CF2O)c--(CHFCF2CF2O)d--(CFClCF2CF2O)e--(CF2CF2CF2O)f-wherein a, b, c, d, e and f are each 0 or a positive integer and satisfy the following equations:        2 ? a+b+c+d+e+f ? 200 and 1 ? a+c+d+f and an iodine atom at at least one end of a molecule, which can provide a block copolymer.  The block copolymer obtained is useful as a grease or as an ingredient of a grease composition.
Patent CA-1300803-C (CA)
Title: Fluorine-containing polymers and oxygen-permeating articles composed of said polymers
Inventor: AGOU TOKINORI
IPC: G02B1/04
Filed: 1987-12-29
Granted: 1992-05-12
Abstract: ABSTRACT OF THE DISCLOSURE            Disclosed are fluorine-containing polymers that have good oxygen permeability, water swellability and contamination resistance and are useful for the production of oxygen permeable articles, such as contact lens.  The polymers contain (meth)acrylate ester monomer units and fluorinated hydrocarbon units.  In one form, the polymers are of a fluorine-containing (meth)acrylate monomer of the formula:       ...(I) or   (II) (wherein R1, R2, and R3 are each hydrogen or methyl, R4 is optionally O- or F-containing hydrocarbon, m and n are each 1 to 1,000) and having a fluorohydrocarbon group which is graft-bonded to the alkylene group of the (meth)acrylate monomer.  In another form, the polymers are copolymers of (a) a fluorine-containing difunctional (meth)acrylate monomer of the formula:              (III) (wherein R5 is hydrogen or methyl, R6 is hydrogen or alkyl and k is 1 to 20,000) and having a fluorohydrocarbon group which is graft-bonded to the alkylene group of the (meth)acrylate and (b) a tri- or higher-functional fluorine-containing (meth)acrylate monomer having a fluorohydrocarbon group which is graft-bonded.
Patent CA-1309352-C (CA)
Title: Method and composition for reducing serum cholesterol
Inventor: KUHRTS ERIC H
IPC: A61K9/22
Filed: 1988-01-19
Granted: 1992-10-27
Abstract: PATENT     ABSTRACT          An orally administrable composition and method for reducing serum cholesterol levels are disclosed.  A pharmaceuti-cal composition comprising a gel-forming fiber such as, for example, guar gum, psyllium seed, pectin, glucomannon, oat and barley and a mineral salt such as for example, calcium carbonate, magnesium carbonate and potassium carbonate is administered to humans to reduce serum cholesterol levels.
Patent CA-1306273-C (CA)
Title: Power latch system
Inventor: ALEXANDER MICHAEL P
IPC: E05B65/12
Filed: 1988-01-22
Granted: 1992-08-11
Abstract: ABSTRACT OF THE DISCLOSURE A powered latching mechanism includes a threaded pin which engages an opposed pair of rotating clogs maintained within a keeper assembly driven by an electric motor connected to the header of the windshield. The clogs are configured to have a ramped portion which permits the manual urging of the pin therepast in the event of failure of the electric motor and/or the hydraulics of the convertible top.
Patent CA-1330472-C (CA)
Title: Polyacrylic process
Inventor: JARVIS MARVIN A
IPC: C08F220/12
Filed: 1988-02-03
Granted: 1994-06-28
Abstract: ABSTRACT    The  continuous  polymerization  of  an  acrylate, particularly methylmethacrylate,  is practiced in the presence of a large quantity of solvent by introducing the monomer feed into a continuous loop of recycled solvent and removing the polymerized product therefrom. The  polymerization  is  practiced  in  a  plurality  of stages, preferably two stages wherein the bulk of the polymerization is performed in the first stage and the final stage is operated to deplete the initiator and any other polymerization modifiers, thereby forming a crude polymerizate for devolatilization.  A product of superior thermal stability and optimum heat distortion temperature is achieved by the addition of some of the comonomers such as methyl acrylate, or ethyl acrylate, etc.,  to  the  final  stage  or  stages  of  the polymerization.   Additionally, the product quality is enhanced by addition of a portion of the chain transfer agent, such as n-dodecyl mercaptan, to the final stage or stages of polymerization.  The crude polymerizate is reheated and devolatilized in a flash zone.  Sufficient pressure is maintained on the crude polymerizate in the devolatilizer preheater to avoid the formation of foam encrustations  on the heat  exchange surfaces of the devolatilizer preheater and on the surfaces of the transfer lines.
Patent CA-1300359-C (CA)
Inventor: OE TSUTOMU
IPC: B21C37/12
Filed: 1988-02-19
Granted: 1992-05-12
Abstract: ABSTRACT OF THE DISCLOSURE      An apparatus for fabricating multi-layer spiral tubes of the type that while the webs are being wrapped in a spiral form the adjacent edge portions of the webs are welded with each other to form spiral tubes, is improved in that the apparatus has a take-up drum for taking up the wrapped webs while rotating with the leading end of the web of the first layer fixedly secured thereto, a wrapping drum having the webs wrapped therearound and including a backing section for backing a welding location of the edge portions of the web of the first layer, a plurality of web feed devices provided adjacent one another for spirally feeding the webs on the wrapping drum of the spiral tubes of the preceding layers, a plurality of wrapping devices provided in combination with the respective web feed devices for spirally wrapping the webs on the wrapped drum or the spiral tubes of the preceding layers, and a drawing device for drawing from the wrapping drum the spiral tubes that are being formed continuously.
Patent CA-1287283-C (CA)
Title: Dental apparatus
Inventor: BLACK JOHN V
IPC: A61C17/02
Filed: 1988-03-10
Granted: 1991-08-06
Abstract: DENTAL APPARATUS               ABSTRACT OF THE DISCLOSURE A dental apparatus is provided which includes a handle having a hollow interior and an end portion which is slightly curved to facilitate insertion in the oral cavity of a dental patient.  Within the hollow interior, an air heater system is provided consisting of an air vortex tube.  Air is delivered to one end of the vortex tube in a direction perpendicular to the longitudinal axis of the tube causing the air to rapidly spin within the tube.  The spinning air contacts a deflection member at the opposite end of the tube which causes a portion of the air to deflect rearward toward its point of entry. This air is cool in temperature, and expelled from the rear of the tube.  The non-deflected air is warm and directed out of the curved end portion of the handle. The invention further includes an adjustment system to control the temperature of air leaving the vortex tube.
Patent CA-1303022-C (CA)
Inventor: HAGIHARA HISAO
IPC: F02B61/02
Filed: 1988-03-16
Granted: 1992-06-09
Abstract: ABSTRACT OF THE DISCLOSURE      A method of manufacturing a motorcycle radiator comprising the steps of: 1)   arranging between a pair of horizontally arranged water tanks or headers, a straight radiator core comprising in combination:  a plurality of corrugated sheets spaced alternately with a plurality of flattened tubes; the flattened tubes; and elongated reinforcing plates, each of said reinforcing plates being provided with a plurality of slits extending from opposite edge portions in width directions of the reinforcing plates, the slits on one of the opposite longitudinal edge portions being disposed in a row and at a predetermined pitch, and the slits on the other of the opposite longitudinal edge portions being disposed in another row and at the predetermined pitch at respective positions halfway between positions of adjacent ones of the slits on the one of the edge portions with respect to a direction parallel to the longitudinal axis; 11)  assembling and brazing these main components to product a straight radiator which establishes the integrity in its construction; and 111) bending the straight radiator in a direction perpendicular to a longitudinal direction of the flattened tubes so as to produce an arc-shaped radiator.
Patent CA-1332549-C (CA)
Inventor: DUENWALD WILLI
IPC: C08G18/79
Filed: 1988-04-22
Granted: 1994-10-18
Abstract: The invention relates to a process for the product-ion of coatings based on polymers having a hydantoin structure by reacting blocked polyisocyanate carrying carbodiimide and/or uretone imine groups with .alpha.,.beta.-un-saturated dicarboxylic acids or derivatives thereof at 50 to 700°C said reaction being carried out on the substrate to be coated,
Patent CA-1309370-C (CA)
Title: Apparatus and method for reclaiming waste oil
Inventor: SHURTLEFF EDWARD C
IPC: C10M175/00
Filed: 1988-09-20
Granted: 1992-10-27
Abstract: ROGERS, BERESKIN & PARR                          CANADA     TITLE: APPARATUS AND METHOD FOR RECLAIMING WASTE OIL             INVENTOR: EDWARD CALTON SHURTLEFF                    ABSTRACT OF THE DISCLOSURE              An  apparatus  and  a  method  are  provided  for reclaiming a useful oil product from waste oil, such as used lubricating oil.  The apparatus comprises an oil feed means, a boiler, a heater and separating means.  The heater is used to heat the waste oil in the boiler to a temperature such that lighter hydrocarbons of the waste oil volatilize, but such  that  heavier   hydrocarbons   remain   unvolatilized, trapping  contaminants  therewith.    The  separating  means separates  the  volatilized  lighter  hydrocarbons  from  the unvolatilized heavier hydrocarbons and contaminants.
Patent CA-1304824-C (CA)
Title: Pipelined lighting model processing system for a graphics workstation's shading function
Inventor: GONZALEZ-LOPEZ JORGE
IPC: G06T15/50
Filed: 1988-10-27
Granted: 1992-07-07
Abstract: Abstract of the Disclosure A lighting model processing system for a computer graphics workstation's shading function includes multiple floating point processing stages arranged and operated in pipeline.  Each stage is constructed from one or more identical floating point processors.  The lighting model processing system supports one or more light sources illuminating an object to be displayed, with parallel or perspective projection.  Dynamic partitioning can be used to balance the computational workload among various of the processors in order to avoid a bottleneck in the pipeline.  The high throughout of the pipeline system makes possible the rapid calculation and display of high quality shaded images.
Patent CA-1303487-C (CA)
Title: Method for the control of mollusks
Inventor: HOLLIS C GEORGE
IPC: C02F1/50
Filed: 1988-11-21
Granted: 1992-06-16
Abstract: ABSTRACT OF THE DISCLOSURE A method for the control of fouling by marine and fresh water mollusks through the use of an ionene polymer. The dis-closed method is particularly useful in controlling fouling by I species of fresh water Asiatic clams of the genus Corbicula, the most common of which is C. fluminea.
Patent CA-1322448-C (CA)
Inventor: VETTERLI WALTER
IPC: B22D11/16
Filed: 1988-12-09
Granted: 1993-09-28
Abstract: ABSTRACT OF THE DISCLOSURE           Molten metal is discharged from a metallurgical vessel through a discharge passage of a sliding closure unit into a continuous casting mold.  The molten metal level in the mold is established within a predetermined range by throttling the passage by a sliding plate of the sliding closure unit, during which throttling operation deposits gradually form in the sliding closure unit to restrict the size of the throttle passage and thereby reduce the molten metal level.  The molten metal level is maintained within the predetermined range by the controlled opening movement of the sliding plate to compensate for restriction of the throttle passage by the formation of the deposits.  Such deposits periodically are removed from the sliding closure unit by, in a single and continuous operation, moving the sliding plate from a compensating throttling position to which the sliding plate previously has been moved due to the formation of deposits, through an open unthrottled position of the sliding plate during which a surge of molten metal through the discharge passage flushes away the deposits, to a throttling position necessary to maintain the molten metal level within the predetermined range without the presence of deposits.  The speed of this moving operation is controlled to ensure that the molten metal level remains within the predetermined range.
Patent CA-1311974-C (CA)
Title: Method of applying alkyd paints to oxyalkylene polymers having a reactive silicon group
Inventor: YUKIMOTO SADAO
IPC: C08J7/046
Filed: 1988-12-22
Granted: 1992-12-29
Abstract: ABSTRACT OF THE DISCLOSURE A method of  coating  the  cured product  of  an oxyalkylene polymer having reactive silicon groups with an alkyd paint.   The oxyalkylene polymer  is combined with  a  high-molecular  weight plasticizer  and  the composition is cured and the cured product coated with an alkyd paint.
Patent CA-1324365-C (CA)
Title: Extended rotation core loading arm
Inventor: WYWIALOWSKI FRANK J
IPC: B65H19/30
Filed: 1988-12-30
Granted: 1993-11-16
Abstract: ABSTRACT OF THE DISCLOSURE A rotatable core loading arm for loading cores in a paper winding machine is provided.  The rotatable core loading arm includes a primary arm, having a member for holding the core, pivotally coupled to a roll of the paper winding machine, a secondary arm coupled to the roll, the secondary arm being secured to an actuator for moving the secondary arm and an intermediate link secured to the secondary arm for causing the primary arm to rotate as the secondary arm is moved.
Patent CA-1306652-C (CA)
Title: Surgical stapler pressure regulator
Inventor: SCHULZE DALE
IPC: F16L39/04
Filed: 1989-01-13
Granted: 1992-08-25
Abstract: SURGICAL STAPLER PRESSURE REGULATOR            Abstract of the Disclosure:     A surgical stapling instrument is provided which employs a highly pressurized gas as its source of energy. The highly pressurized gas is conducted to means for indicating the presence of the pressurized gas and to a pressure regulator.  The pressure regulator controllably develops gas pressurized to a desired operating pressure. The pressure regulator supplies gas at a fixed or variable pressure to a tissue clamping mechanism and to the trigger mechanism of the instrument.  In response to actuation of the trigger mechanism gas at the desired stapling pressure is supplied to a stapling mechanism.  In a preferred embodiment, pressurized gas is maintained at the stapling mechanism until the trigger mechanism is reset for a subsequent stapling procedure.
Patent CA-1314906-C (CA)
Title: Didehydro vitamin d -derivatives
Inventor: BAGGIOLINI ENRICO G
IPC: C07C401/00
Filed: 1989-01-17
Granted: 1993-03-23
Abstract: ABSTRACT      The novel compounds of the formula                   I   wherein R1 is hydrogen or hydroxy and R2 is hydrogen or fluorine, ace useful as agents in the treatment of disease states characterized by metabolic calcium deficiencies, particularly osteoporosis and renal osteodystrophy.
Patent CA-1321742-C (CA)
Title: Thixotropic aqueous automatic dishwashing detergent compositions
Inventor: DIXIT NAGARAJ S
IPC: C11D3/395
Filed: 1989-02-03
Granted: 1993-08-31
Abstract: ABSTRACT            A thixotropic automatic dishwasher composition comprising a concentrated dispersion of solid particles in a liquid phase characterized in that air bubbles are entrained in the composition in an amount sufficient to equilibrate the specific gravity of the liquid phase with the bulk specific gravity of the composition, thereby improving the physical stability of said thixotropic dishwasher composition.
Patent CA-1326441-C (CA)
Inventor: OFTEBRO REIDAR
IPC: A61K33/243
Filed: 1989-04-03
Granted: 1994-01-25
Abstract: ABSTRACT           Anti-cancer platinum complexes such as cisplatin exhibit a synergistically higher level of anti-tumour activity when administered substantially simultaneously either with L-ascorbic acid, or with 5,6-O-benzylidene-L-ascorbic acid or deuterated forms thereof.
Patent CA-1339509-C (CA)
Title: Surface-segregatable, melt-extrudable thermoplastic composition
Inventor: NOHR RONALD S
IPC: C08K5/54
Filed: 1989-04-13
Granted: 1997-10-21
Abstract: A surface-segregatable, melt-extrudable thermoplastic composition suitable for processing by melt extrusion to form a fiber or film having a differential, increasing concentration of an additive from the center of the fiber or film to the surface thereof, which differential, increasing concentration imparts to the surface of the fiber or film at least one desired characteristic which otherwise would not be present, which composition includes at least one thermoplastic polymer and at least one defined additive. During formation of the fiber or film, the additive rapidly segregates in a controllable manner toward the newly-formed surface of the fiber or film, thereby resulting in a controllable differential concentration of the polymeric material, which concentration increases with increasing distance from the center of the fiber or film to its surface. The thermoplastic composition is useful in the preparation of fibers or films which have at least one surface characteristic which is different from that of the polymer component of the thermoplastic composition. Methods for preparing the fibers or films and for stabilizing the thermoplastic compositions under certain conditions also are disclosed.  The thermoplastic composition is particularly useful in the formation of nonwoven webs which are used in the construction of such disposable absorbent products as diapers, feminine care products, incontinence products, and the like.
Patent CA-1337733-C (CA)
Inventor: N SS HARALD JR
IPC: B22D11/04
Filed: 1989-04-14
Granted: 1995-12-19
Abstract: A continuous or semi-continuous casting apparatus of the direct chill type for casting metallic materials, particu-larily rectangular ingots of aluminium, comprises a mold (1) which has an open inlet (2) for the filling of melted metal and a mold cavity (4) with an open outlet with water supply means for cooling of the metal. The mold cavity is at a distance from its inlet provided with a permeable ring (20) for the supply of oil and/or gas, such that a layer of oil and/or gas is formed between the metal and mold wall whereby the metal is prevented from coming into contact with the mold wall before it solidifies. The surface of the ring, with the exception of the side facing the mold cavity, is provided with a sealing agent which prevents the oil and/or gas from escaping through the surface. Further, the ring, in its peripherical direction, is provided with longitudinal bores or holes for supplying oil and/or gas to said bores via bores through the mold wall and further into the graphite ring from the outside of the mold.
Patent CA-1341391-C (CA)
Title: Protective peptides derived from human immunodeficiency virus-1 gp160
Inventor: WILLIAMS WILLIAM
IPC: A61K38/00
Filed: 1989-04-19
Granted: 2002-10-01
Abstract: A peptide comprising an amino acid sequence of up to 50 amino acids that corresponds to at least a port ion of a protective epitope of HIV and includes an amino acid sequence chosen from the group consisting of:-(a) gly-glu-ile-lys-asn-cys-ser-phe-asn-ile-ser-thr-ser-ile-arg-gly-lys-val-gln-lys-glu-tyr-ala; (b) asn-gly-asn-ala-glu-glu-val-val-ile-arg-ser-ala-asn-phe-thr-asp-asn -ala-lys-thr-ile-ile-val; (c) cys-asn-ile-ser-arg-ala-Lys-trp-asn-asn-thr-leu-lys-gln-ile-asp-ser-lys-leu-arg-glu-gln-phe; (d) gly-ser-asp-thr-ile-thr-leu-pro-cys-arg-ile-lys-gln-ile-ile-asn-met-trp-gln-glu-val-gly-lys ; and (e) val-gln-gln-gln-asn-asn-leu-leu-arg-ala-thr-glu-ala-gln-his-leu-leu-gln-leu-thr-val-thp-gly-ile-lys-gln-leu-gln.        The disclosed peptides are immunologically cross-reactive with human immunodeficiency virus 41,000 dalton glycoprotein gp41.  These novel peptides are useful in methods of interfering with the effects of HIV-1 upon host cells having cell surface polypeptides capable of binding HIV-1.
Patent CA-1334948-C (CA)
Title: Enzymatic purification process
Inventor: DOVE GEORGE B
IPC: C12P1/00
Filed: 1989-06-02
Granted: 1995-03-28
Abstract: Controlled enzymatic treatment may be used to selectively degrade undesirable contaminants to a size or charge range which can be more readily removed by subsequent separation steps.  Treatment is especially useful for purifying rDNA or monoclonal antibody culture products by using nuclease enzyme treatment to degrade undesirable residual nucleic acids to a molecular size or charge range sufficiently different from the product to be purified so that this difference can be exploited in a subsequent purification step (e.g. precipitation, size exclusion chromatography or ion exchange chromatography).
Patent CA-1325452-C (CA)
Title: Vacuum switch arrangement
Inventor: WUETHRICH HANS R
IPC: H01H33/02
Filed: 1989-06-08
Granted: 1993-12-21
Abstract: ABSTRACT OF THE DISCLOSURE    A switch arrangement includes three identical insulating support frames in the tubular insulating housings of which one vacuum  switching tube  each  is  arranged.    Parallel insulating wall elements,  at which support elements are molded for drive parts of a spring force drive, project from the insulating housings.  An output shaft of the spring force drive is supported at all insulating wall elements whilst the remaining drive parts are arranged at the insulating wall elements of the center insulating support frame.
Patent CA-1324664-C (CA)
Inventor: CHIGASAKI HIROYUKI
IPC: G11B15/17
Filed: 1989-06-21
Granted: 1993-11-23
Abstract: Abstract This invention is relative with a tape cassette attachment device applied to a magnetic recording/reproducing apparatus,  such as a cassette tape recorder,  wherein a cassette holder into which is inserted and held a tape cassette having a closure plate mountd to the bottom surface of the cassette half for movement between the position of closing the reel drive shaft insertion openings formed in the bottom surface of the cassette half rotatably accommodating a pair of tape reels carrying a magnetic tape and the position of opening the reel drive shaft insertion openings is shifted horizontally and vertically for attaching the tape cassette at a predetermined tape cassette attachment position in the main body of the apparatus.  The tape cassette enables the shifting operation of the cassette holder to effect tape cassette attachment only when the tape cassette is correctly inserted and held with respect to the cassette holder.
Patent CA-1314370-C (CA)
Title: Injection molding system having fluid cooled inserts
Inventor: SHEFFIELD JAMES S
IPC: B29C45/27
Filed: 1989-07-19
Granted: 1993-03-16
Abstract: ABSTRACT OF THE DISCLOSURE         An injection molding system having a number of heated nozzles or probes, each with a forward nose portion extending in a well in an insert in alignment with a gate leading to a cavity.  A circular cooling fluid passage extends through the insert around the nose portion adjacent the cavity.  The cooling fluid passage receives a flow of cooling fluid through inlet and outlet ducts which removes excessive heat which otherwise accumulates from the hot melt and the heating element in the nozzle.  The insert is made by integrally brazing inner and outer portions together in a vacuum furnace.  The circular passage and the inlet and outlet ducts are provided by machining appropriate grooves and bores in the inner and outer portions before they are brazed together.