baber/WOPTO huggingface dataset:
Patent CA-2068542-A1 (CA)
Title: Optical coupler and method of manufacturing
Inventor: JEAN FABRICE
IPC: G02B6/122
Filed: 1992-05-13
Abstract: ABSTRACT      An optical coupler with an input and 2n outputs comprises a plurality of substantially coplanar waveguides, each optically coupling said input to one of said 2n coupler outputs, said waveguides comprising a plurality of waveguide sections connecting n stages of Y-junctions disposed along each waveguide path in a tree and branch arrangement, and further comprises a first junction (J21), having an axis not parallel to that of said coupler, which is connected to two second junctions (J31, J32) by curved waveguide sections without singularities, wherein any inflection point along any one of the waveguides, between the input and the nth stage of the junctions, is situated at one of the n junctions along the waveguide path.  The coupler may be successfully applied to splitters or combiners and carried out in integrated optics, and a method for designing the mask used in the manufacture of the integrated optics coupler is also described.
Patent CA-2070455-A1 (CA)
Title: Apparatus and method for precisely dispensing solid materials
Inventor: ALSTON WILTON D
IPC: B65D83/00
Filed: 1992-06-04
Abstract: Abstract of the Disclosure A method and apparatus for accurately discharging the entire contents of a container is disclosed.  A rigid container has an open upper end and at least one hole in the bottom of the container.  The container has a flexible liner with a neck portion which is folded back around the upper end of the container to form a cuff.  The cuff is sealed against the sides of the container and the container is inverted.  A gas is injected through the hole or holes in the bottom of the container into the space between the flexible liner and the container.  This everts the liner and insures that all of the contents of the container are dispensed.
Patent CA-2076085-A1 (CA)
Title: Halftone dot patterns
Inventor: ASHWORTH WILLIAM F
IPC: G03F5/00
Filed: 1992-08-13
Abstract: HALFTONE DOT PATTERNS    ABSTRACT       The dot patterns which may be used to reduce dot gain and moiré effects in halftone images involve printing areas which have inwardly curved edges and variable elongation. Colored images having screens which use these patterns may be printed with the screens at 45° relative angular separations. Alternatively the dot patterns may be regarded as reversed variable oval patterns with varying elongation of the generally oval shaped non-printing areas.     Figure 4b
Patent CA-2081323-A1 (CA)
Title: Additive for lubricants containing a metal complex
Inventor: DERUYCK FRANK
IPC: C10N30/06
Filed: 1991-05-10
Abstract: An additive for lubricants including a dispersible metal complex compound containing phosphorus and nitrogen. This complex compound consists of a co-ordination compound containing a fatty acid residue and at most one RCOO group per two metal atoms. Zinc is the metal of preference. Utilization for wet drawing of metal wire.
Patent CA-2083252-A1 (CA)
Title: Apparatus for drive on loading of a railway car
Inventor: MCLAUGHLIN ERIC L
IPC: B61D47/00
Filed: 1992-11-18
Abstract: APPARATUS FOR DRIVE ON LOADING OF A RAILWAY CAR                          Abstract A railway loading dock is disclosed with adjacent trackage having pairs of main rails and stabilizing rails.  A modified railway flatbed car is equipped along its sides with stabilizing wheels and associated support structure to retain the car bed coplanar with the loading dock surface to permit drive on loading and drive off unloading of large trucks.  The railway car bed is equipped with bed extensions which primarily occupy that space between ends of adjacent cars to permit travel of trucks, in a straight or oblique manner, over the ends of adjacent railway cars.  The stabilizing rails have inclined segments for gradual engagement with the car stabilizing wheels.
Patent CA-2084232-A1 (CA)
Title: Cylinder for continuous casting of metal bands, continuous casting machine and process of making same
Inventor: DAMASSE JEAN-MICHEL
IPC: B22D11/06
Filed: 1992-12-01
Abstract: The surface of the cylinder (1) coming into contact with the cast metal has a roughness which varies continuously along any generatrix of the cylinder (1). The roughness is generally greater in the end zones (4, 5) of the cylinder (1) than in the central zone (6). The roughness may be obtained by burnishing or by machining with removal of flakes. <IMAGE>
Patent CA-2084693-A1 (CA)
Title: Massage apparatus, especially for cosmetic facial massage
Inventor: HAAS FRANZ
IPC: A61H23/02
Filed: 1992-12-07
Abstract: ABSTRACT OF THE DISCLOSURE      A heating and massaging device has its heater in the handle and positioned so as to transfer heat through a heat conductive shank to the massage head solely by thermalconductivity, thereby uniformly heating the massage head without requiring any electric elements in the head or shank.
Patent CA-2086199-A1 (CA)
Title: High sulfur mineral oil compositions
Inventor: TAYLOR JOHN M
IPC: C10M169/04
Filed: 1992-12-23
Abstract: HIGH SULFUR MINERAL OIL COMPOSITIONS                      Abstract of the Disclosure Copper corrosiveness of compositions comprising a major amount of a base oil of which at least 50% by volume is mineral oil that has an inherent sulfur content of at least 0.2 percent by weight is reduced by adding to the oil a small amount of at least one oil-soluble neutral hydrocarbyl phosphite ester, most preferably tri-phenyl phosphite.  The addition of phosphite can yield composition exhibiting a copper rod rating of 5 or below in the Cincinnati Milacron Thermal Stability test procedure "A", even though in the absence of the addition of phosphite, the composition fails the test.  The unpredictability of the invention is shown by the fact that not all high sulfur oils respond to the treatment, and no ex-planation for the divergence of results is presently known.
Patent CA-2088929-A1 (CA)
Inventor: MOREDOCK JAMES C
IPC: B01D36/04
Filed: 1993-02-05
Abstract: A purification method and device for purifying industrial oils from contaminates including a first container housing for receiving the industrial oil in bulk and separating liquid and particulate contaminates therefrom by reversing a flow direction of the received oil.  The thus processed oil is transferred to a second container and is subjected to a further filtration by forcing the oil under high pressure through at least one filter element accommodated in the second container.  The high pressure on the at least one filter element results in a compression of the at least one filter element thereby precluding the oil being processed from bypassing the filter element.  A further filter barrier seal element may be provided above the at least one filter element and serve as a final filtration prior to a discharge of the oil from the second container.
Patent CA-2089935-A1 (CA)
Title: Process and system for increasing the gas uptake by a liquid being aerated
Inventor: EBNER HEINRICH
IPC: B01F3/04
Filed: 1993-02-19
Abstract: Abstract of the Disclosure A process and system for enhancing the oxygen uptake by a liquid being aerated in a basin or tank with the aid of an aerator which can only aerate the liquid over a cross-sec-tional zone smaller than the total floor surface of the basin or tank.  To achieve the enhancement, there is provid-ed vertically above the aerator but at the surface of the body of liquid an enclosure which is open at its top and bottom and has a cross-sectional size sufficient to surround approximately the entire region where the rising directly aerated quantity of liquid reaches the surface of the body liquid.  The enclosure, which when installed has its top edge arranged above and its bottom edge below the surface of the body of liquid, is constructed and arranged to either entirely or partly inhibit flow of the upwardly displaced aerated liquid laterally outwardly from the region of its arrival at the surface of the body of liquid, thereby to control the "airlift effect" and the resultant liquid circu-lation which tends to reduce oxygen uptake.
Patent CA-2090245-A1 (CA)
Inventor: BROZOVICH JOSEPH M
IPC: H04M11/04
Filed: 1993-02-24
Abstract: A line-based 911 system and method that completes an emergency call from a telephone to a PSAP comprising a multiplicity of operator stations connected by individual lines to a telephone switching system. An emergency call is routed to the termination ports of the switching system associated with a PSAP. Each of the termination ports is connected to one of the multiplicity of operator stations via its associated line, thereby establishing a path from the telephone to the operator station, the CPN of the calling telephone is delivered to the selected operator station and the operator station obtains location information of the telephone in accordance with the CPN, which is then displayed.
Patent CA-2093274-A1 (CA)
Title: Scrubbing process for a hydrofluoroalkane
Inventor: DARAGO GILLES
IPC: C07C17/386
Filed: 1993-04-02
Abstract: Process for purifying a hydrofluoroalkane with respect to impurities which are less volatile than the hydrofluorocarbon, by distillation in the presence of an acid-scavenger, for example a C3-C8 olefin.
Patent CA-2093359-A1 (CA)
Title: Prevention or treatment of sunburn using the s(+) isomer of ketoprofen
Inventor: SUNSHINE ABRAHAM
IPC: A61K31/19
Filed: 1991-09-27
Abstract: Ultraviolet radiation induced erythema is prevented or treated in a human mammal in need of such prevention or treatment, i.e., a mammal suffering from or seeking to avoid sunburn, by topically administering thereto a unit dosage erythema-preventing or treating effective amount of the S(+) ketoprofen enantiomer, said enantiomer being substantially free of its R(-) ketoprofen antipode.
Patent CA-2096697-A1 (CA)
Inventor: MARKLE DAVID R
IPC: A61B5/1473
Filed: 1993-05-20
Abstract: Disclosed are an electrochemical sensor for the determination of the partial pressure of oxygen in a bloodstream comprising a cathode 20 and an anode 21 immersed in an electrolyte 17 contained in a chamber 23 defined by an oxygen gas permeable membrane 19 wherein the conductor 12 forming the anode 21 is folded into a "U" shape 22 so that the exposed distal end surface 13 thereof faces the distal end surfaces 13 of the cathode 20, and a method for manufacturing the electrochemical sensor.
Patent CA-2096870-A1 (CA)
Title: Paint can rim perforating tool and paint can perforated thereby
Inventor: ZACHARCHUK WALTER
IPC: B67B7/46
Filed: 1993-05-25
Abstract: Abstract A pry type hand tool for making drain holes in the bottom wall of a lid receiving channel on the top rim of a paint can.  The tool has a handle portion and a bifurcated end where the two legs are offset laterally and longitudinally.  One leg has an inwardly turned end, directed toward the other leg, forming a shallow channel and the other leg has a sharpened tip and knife like cutting edge.
Patent CA-2097352-A1 (CA)
Inventor: FORTIN PAUL E
IPC: H01B7/22
Filed: 1993-05-31
Abstract: An improved aluminum alloy armoured cable wrap has been produced which permits the use of less aluminum alloy in the cable wrap thereby achieving lighter construction, while meeting or exceeding strength and flexibility requirements. The armoured cable wrap is made from aluminum alloy strip material formed of an aluminum alloy containing about 2.8-3.5 percent by weight Mg, about 0.25-0.70 percent by weight Mn and about 0.15-0.35 percent by weight Cr.  Up to 0.5 percent by weight of Cu may also be added.  The strip material is heat treated preferably to an Ultimate Tensile Strength of at least 265 MPa.
Patent CA-2099845-A1 (CA)
Title: Method and composition for controlling the growth of microorganisms
Inventor: DONOFRIO DEBORAH K
IPC: C02F1/50
Filed: 1993-07-05
Abstract: ABSTRACT OF THE DISCLOSURE         A microbial inhibiting composition and method is dis-closed.  The composition comprises an amount, effective for the intended purpose of 2-bromo-2-nitropropane-1,3-diol and didecyl dimethyl ammonium chloride.  The method comprises administering an amount of this combined treatment to the particular water containing system for which treatment is desired.
Patent CA-2100182-A1 (CA)
Inventor: CHAUVIN YVES
IPC: C07C11/02
Filed: 1993-07-09
Abstract: Procédé d'oligomérisation de l'éthylène en oléfines alpha légères, principalement en butène-1, hexène-1, octène-1 et décène-1, dans lequel l'éthylène est mis en contact avec un catalyseur obtenu par mélange d'un composé de zirconium avec un composé organique choisi dans la classe des acétals et des cétals et avec un composé chloré ou bromé d'aluminium hydrocarbyl.
Patent CA-2100233-A1 (CA)
Inventor: HETRICK ROBERT E
IPC: G01N27/62
Filed: 1993-07-09
Abstract: A sensor for determining the stoichiometric air to fuel ratio (A/F) at the input to the cylinders of an internal combustion engine which is based on measuring the change in the workfunction of a material which occurs when the oxidizing and reducing species in the adjacent gas phase are at or near their stoichiometric ratio.  In one method the sensor includes a material which is capable of thermionically emitting alkali metal or other appropriate ions into an exhaust gas atmosphere where they are subsequently collected by a nearby collector electrode and the magnitude of the emission current is measured The interaction of the emitting surface with the gas phase reversibly changes the workfunction of the emitting surface from large to smaller values as that gas phase is varied through the stoichiometric ratio with respect to the amounts of the oxidizing and reducing species in the gas.  Such a change in workfunction of the surface is accompanied by a change in the rate of the thermionic emission at the stoichiometric ratio thereby sensing that ratio in the gas phase which is proportional to the A/F at the input to the cylinders.
Patent CA-2100253-A1 (CA)
Inventor: PALMER ALAN
IPC: G01R31/36
Filed: 1992-01-06
Abstract: The present invention relates to a battery tester comprising a plurality of resistive elements (22, 24, 26, 28) in thermal contact with a thermochromic material (50) wherein the elements (22, 24, 26, 28) are connected in a parallel configuration.
Patent CA-2101310-A1 (CA)
Title: Novel arylglycinamide derivatives and preparative processes therefor
Inventor: MIYACHI HIROYUKI
IPC: A61P13/02
Filed: 1993-07-26
Abstract: Arylglycinamide derivatives represented by a general formula (I) (see formula I ) (wherein Ar denotes a phenyl group which may have 1 to 3 substituents or naphthyl group which may have 1 to 3 substituents, R1 and R4 denote identically or differently hydrogen atoms or lower alkyl groups with 1 to 3 carbon at-oms, R2 denotes a lower alkyl group with 1 to 6 carbon at-oms, cycloalkyl group with 3 to 6 carbon atoms, lower alkyl group with 1 to 4 carbon atoms which may have a phenyl group which may have 1 to 3 substituents, norbornyl group, adamantyl group or phenyl group which may have 1 to 3 substituents, R3 denotes a hydrogen atom or lower alkyl group with 1 to 6 carbon atoms or it may form a ring consti-tuting alkylene together with R2, R5 denotes a lower alkyl group with 1 to 6 carbon atoms or cycloalkyl group with 5 or 6 carbon atoms, R6 denotes a hydrogen atom or lower alkyl group with 1 to 6 carbon atoms or it may form a ring consti-tuting alkylene together with R5, and m denotes 2 or 3), and their salts, which function as effective therapeutic drugs for the dysurias such as urinary incontinence and pol-lakiuria, and the preparative processes therefor are pre-sented.
Patent CA-2102083-A1 (CA)
Inventor: OHMSTEDE ROBERT L
IPC: B23Q11/00
Filed: 1993-10-29
Abstract: ABSTRACT    An improved machining apparatus for machining a workpiece.  The machining apparatus includes a base assembly having a base support member and a table support frame non-movably attached to the base support member.  A pair of cross members span the upper surface of the table.  The table support frame has a longitudinal axis transverse to the cross members and includes a raceway for allowing lateral displacement of the table relative to the base assembly.  At least one spindle is mounted on the cross members and can be displaced along the longitudinal axis of the cross members.  Flexible retractable covers are mounted on spring-loaded rollers attached to the ends of the table support frame.  The machining apparatus further includes a conveyor positioned proximate the base assembly at the lower edge of the table for removing cuttings and debris resulting from the machining of the workpiece.
Patent CA-2106364-A1 (CA)
Title: Greenhouse
Inventor: ZEMBIK ALLEN J
IPC: A01G9/14
Filed: 1993-09-16
Abstract: GREENHOUSE     ABSTRACT OF THE DISCLOSURE A greenhouse has a rectangular base carrying tracks along two longer sides. A canopy for the greenhouse is a flexible, translucent cover supported on a series of hoops. The canopy opens in the centre and can be retracted by drawing the hoops towards the ends of the greenhouse, along the side tracks.
Patent CA-2108226-A1 (CA)
Title: Liquid-liquid extraction using microporous hollow-fiber membrane
Inventor: COUGHLIN ROBERT W
IPC: G01N1/34
Filed: 1993-10-12
Abstract: LIQUID-LIQUID EXTRACTION USING MICROPOROUS HOLLOW-FIBER MEMBRANES  ABSTRACT OF THE DISCLOSURE      Method and apparatus are provided for accomplishing improved liquid-liquid extraction employing microporous hollow-fiber membranes.  A number of possible modes of liquid-liquid extraction are possible according to the invention.
Patent CA-2113854-A1 (CA)
Title: Device for forming a fracture slit in a pilferproof ring in screw caps made of plastics
Inventor: ALIERI RODIERO
IPC: B65D55/08
Filed: 1994-01-20
Abstract: ABSTRACT OF THE DISCLOSURE      The device for forming a fracture slit in the pilferproof ring in screw caps made of plastics has a mandrel on which the cap is placed.  The mandrel is provided with teeth that engage retaining teeth formed inside the ring whereby to cause the cap to rotate over a cutting blade.
Patent CA-2114375-A1 (CA)
Inventor: SPOON VITO
IPC: B60P3/34
Filed: 1994-01-27
Abstract: A support for an awning of a recreational vehicle, the awning being operable to unroll to a usable position and to be compactly retracted adjacent a side of the recreational vehicle in a storage position.  The support comprises a bracket adapted to be secured to the recreational vehicle.  The bracket comprises at least one retention member which extends angularly upward away from the side of the recreational vehicle.  The support further comprises an awning-receiving apparatus which is movably mounted to the bracket between a supporting position in which the receiving  apparatus  engages  the  retention  member,  thereby supporting and maintaining the retracted awning in the storage position, and an inoperative position in which the awning is unrolled  and  the  receiving apparatus  does  not  engage  the retention member.
Patent CA-2115023-A1 (CA)
Title: Extrusion calibrator
Inventor: MELKONIAN GEORGE
IPC: B29C48/90
Filed: 1994-02-04
Abstract: EXTRUSION CALIBRATOR                    Abstract of the Disclosure An  extrusion calibrating apparatus  connectable  to external sources of cooling water and vacuum,  and usable to calibrate the exterior profile of a hollow thermal plastic extrusion.    The  apparatus  includes  lower  and  upper  cover plates each having a pair of vacuum manifolds therein, the lower cover plate being fixedly attachable to a stationary support.    The apparatus  further  includes  lower  and  upper vacuum  plates  each  having  a  plurality  of  vacuum  slots extending between a lower and an upper side thereof and in communication with a corresponding vacuum manifold.   Each of the vacuum plates also has supply and return water channels providing communication between spaced-apart interior supply and return ports on an inward side thereof.  A heat-conducting calibrating insert is removable positioned within an interior chamber between the vacuum plates with lower and upper sides in face-to-face juxtaposition with corresponding inward sides of the vacuum plates.  The insert has a calibrating aperture and a plurality of vacuum slots extending between the lower and upper sides thereof and communicating with the calibrating aperture,  and the vacuum slots of the vacuum plates.   The lower and upper sides of the insert each have a water channel which communicates with a corresponding pair of the vacuum plate supply and return ports.
Patent CA-2116068-A1 (CA)
Title: Cyclic derivatives, pharmaceutical compositions containing these compounds and processes for preparing them
Inventor: HIMMELSBACH FRANK
IPC: A61K31/41
Filed: 1994-02-21
Abstract: Abstract Cyclic Derivatives The invention relates to cyclic derivatives of formula I       (I) (wherein Ra, Rb, X and Y are as defined in claim 1), the isomers and salts thereof, which have valuable pharmacological properties, in particular aggregation-inhibiting effects.
Patent CA-2116336-A1 (CA)
Title: Nitrogenous heterocyclic compound
Inventor: TAKASE YASUTAKA
IPC: F16C7/02
Filed: 1992-09-30
Abstract: Abstract The present invention provides a nitrogenous heterocyclic compound represented by the following general formula (1) or a pharmacologically acceptable salt thereof which is useful for various ischemic heart diseases and the like:                          (1) [in formula (1), ring A represents a benzene ring, a pyridine ring or a cyclohexane ring: ring B represents a pyridine ring, a pyrimidine ring or an imidazole ring, R1, R2, R3 and R4 represent each a hydrogen atom, a halogen atom or a group such as a lower alkoxy group; R5 represents a group represented by the formula -NR11R12 (wherein R11 and R12 represent each a hydrogen atom or a group such as a lower alkyl group) or the like: and R6 represents a group represented by the formula                (wherein R19 represents a hydrogen atom, a lower alkyl group or the like; R20, R and R22 represent each a hydrogen atom, a halogen atom, a hydroxyl group or the like; and r represents 0 or an integer of 1 to 8)].
Patent CA-2116397-A1 (CA)
Title: Chair Base
Inventor: PERL LUDOVIC A
IPC: A47C3/20
Filed: 1994-02-24
Abstract: The chair base includes a hub having a central axis and a number of legs attached to and radially extending from the hub. A bore extends concentrically along the axis through the hub defining an interior wall within the hub. The interior wall includes an upper conical wall portion extending between a circular first upper edge and a circular first lower edge. The first upper edge has a larger diameter than the first lower edge such that the conical wall portion tapers inwardly and downwardly. The interior wall also includes a lower wall portion disposed below the upper conical wall portion which extends between a circular second upper edge and a circular second lower edge. The second upper edge of the lower wall portion has a diameter which is smaller than the diameter of the first lower edge of the upper conical wall portion. A annular wall portion extends between the second upper edge of the lower wall portion and the first lower edge of the conical wall portion. The annular wall forms an inwardly extending step for engaging the bottom end of the column when the column is inserted into the bore and thereby prevents the column from moving downwardly through the bore past a predetermined point during use.
Patent CA-2118218-A1 (CA)
Title: Biomaterials for bone replacements
Inventor: DORIGATTI FRANCO
IPC: A61K6/898
Filed: 1993-04-16
Abstract: Bondin solutions for granular bone replacements are provided, comprising hyaluronic acid or hyaluronic acid derivatives such as hyaluronic acid esters and hyaluronic acid antibiotic salts in combination with natural or artificial bone granules,These solutions can be used in human and veterinary dentistry, and bone surgery as granular bone replacements to promote the growth and repair of damaged or defective bone tissue.