baber/WOPTO huggingface dataset:
Patent CA-2015338-A1 (CA)
IPC: B01J37/00
Filed: 1990-04-24
Abstract: The present invention provides a process for producing a perovskite-type oxide catalyst.  The process comprises the steps of reacting an aqueous solution containing plural metal salts, such as chloride, sulfate, nitrate, etc., and an aqueous solution of a neutralizer  such as  alkali carbonate, alkali hydroxide, ammonia, etc., so as to cause coprecipitation of neutral salts and firing the coprecipitated salts to provide a perovskite-type oxide.  At least one organic substance selected from the group consisting of cellulose, polyvinyl acetate, polyethylene, polystyrene, polypropylene, polyvinyl alcohol, starch, gelatin and saccharide is added prior to the firing step.  The addition of the organic substance makes possible the attainment of a highly active perovskite-type oxide catalyst composed of very fine particles (primary particles).
Patent CA-2015834-A1 (CA)
Inventor: MERSCH STEVE H
IPC: A61M39/00
Filed: 1990-05-01
Abstract: A flashback vent plug (22) is provided for catheters (16) with air vents (28) drilled by a laser beam which allow venting of the hollow plug (22) upon venous entry, but which vents (28) are so small that blood cannot pass. As a result, no leakage ever takes place. As a further feature of the invention, is the addition of a component to the resin making up the vent plug body (24) which optimizes absorption of the laser beam wave length. The air vent design of this invention provides sufficient cross-section for achieving the required air flow, and therefore rapid flashback and venous entry indication, yet its cost of manufacture is considerably reduced when compared to plug designs that involve multi-step assembly.
Patent CA-2015985-A1 (CA)
Title: Exercising device
Inventor: LECOURS ROGER
IPC: A63B69/00
Filed: 1990-05-03
Abstract: ABSTRACT OF THE DISCLOSURE An  exercising apparatus  for persons  confined to wheelchairs  includes  a pair of  rollers  arranged  to support the large wheels  of a wheelchair so that the person in the wheelchair can rotate the wheelchair wheels during the course of an exercise routine.   Brake means readily accessible to such person are provided thereby to enable the braking effect to be varied depending upon the person's needs and requirements.   Detachable ramps are provided which allow the person to roll onto or off the machine either without the need of or with minimal need of the assistance of other persons depending on the degree of disability which is present.
Patent CA-2016983-A1 (CA)
Inventor: AKASHI SHUNJI
IPC: A44B19/26
Filed: 1990-05-17
Abstract: An ornamental pull tab for slide fastener sliders is made from synthetic resin and has on its upper surface a desired pattern.  The ornamental pull tab comprises a grip portion including a base plate having in the upper surface a recess in the form of the pattern and a pattern portion formed on the base plate by injection-molding synthetic resin into the recess.
Patent CA-2017358-A1 (CA)
Inventor: SCHIRMANN JEAN-PIERRE
IPC: C07B61/00
Filed: 1990-05-23
Abstract: Continuous process for the synthesis of azines from aqueous hydrogen peroxide, ammonia and a reactant containing a CO group, (i) a working solution circulating in a loop between the azine reactor and a treatment device and (ii) the introduction of a product preferably chosen from acetic acid, ammonium acetate and acetonitrile. The azines are hydrolysed to obtain hydrazine hydrate.
Patent CA-2017852-A1 (CA)
Title: Method and apparatus for beheading fish, and method and apparatus for extracting roe or milt from a fish
Inventor: NIELSEN HENRIK M
IPC: A22C25/08
Filed: 1990-05-30
Abstract: TITLE:         Method and apparatus for beheading fish, and method and apparatus for extracting roe or milt from a fish.            ABSTRACT:     An apparatus for beheading fish comprises a supporting plate 10, a cover plate 12, and a fluid bag 13 with a fluid inlet 14. The apparatus is open at both ends, and the fish is placed with the head free. Fluid under pressure is thereafter introduced through the inlet 14 into the fluid bag 13 which is thereby inflated to the shape as shown. As the bag is resilient, but is confined between the fish and the supporting plate 10 and the cover plate 12, respectively, the fish will thereby be seized between the bag and the supporting plate. An extremely effective and firm mechanical seizure of the fish is thereby achieved, even under moist, slimy or slippery conditions likely to prevail where fish are be-ing processed. When the fish is seized by an appropriate pressure in the fluid bag 13, it is held so firmly that the head can be torn off. This is performed by means of the tool seen to the right in the figure and which comprises a plane abutment plate 16 which is pushed in below the front edge of the supporting plate 10, a pivotal gripping jaw 15, being shown in the figure in its free position above the fish approximately a-breast of the gill cover 4. If also the ear bone of the fish is removed, the roe can be removed from the fish by increasing the fluid pressure in the bag, so that the roe is squeezed out.    The invention also comprises methods for beheading fish and for ex-traction of roe or milt from a fish.
Patent CA-2021146-A1 (CA)
Title: Composition comprising an anticoagulant
Inventor: REUTELINGSPERGER CHRISTIAAN
IPC: A61K33/24
Filed: 1990-07-13
Abstract: Abstract The present invention relates to a pharmaceutical composition which contains bivalent cations in addition to an anticoagulant or analogs thereof.
Patent CA-2021316-A1 (CA)
Inventor: CHAN MING F
IPC: A61K31/557
Filed: 1990-07-17
Abstract: Disclosed is an intraocular pressure reducing method and composition wherein 11-acyl prostaglandins are contained in a pharmaceutically acceptable excipient for topical application to the surface of the eye.
Patent CA-2023604-A1 (CA)
Title: Package for handling and transporting glass slides
Inventor: WEBBER PETER J
IPC: G02B21/34
Filed: 1990-08-20
Abstract: ABSTRACT OF THE DISCLOSURE     A container for handling and transporting glass slides.  The container comprise a base support having at least one slide retention well for receiving a single glass slide and a cover for engagement with the base support.  A projection is provided on the cover for alternating access to different portions of the slide as desired.     Docket 3892
Patent CA-2028911-A1 (CA)
Title: Process for production of 2-phosphated esters of ascorbic acid
Inventor: YOSHIDA KOKICHI
IPC: C07F9/655
Filed: 1990-10-30
Abstract: Abstract of the disclosure:          PROCESS FOR PRODUCTION OF     A process for the production of 2-phosphated esters of ascorbic acid by subjecting an ascorbic acid optionally protected at the 5- and 6-positions to phosphorylation with maintaining the concentration of the optionally protected ascorbic acid in a reaction mixture at less than 0.3 M and, if necessary removing any protecting group is disclosed.  2-Phosphated ester of ascorbic acid can be produced with a good yield in an industrial scale by this process.
Patent CA-2032148-A1 (CA)
Title: Medicated ear tag
Inventor: MCKEDDIE DAVID J
IPC: A61D7/00
Filed: 1990-04-30
Abstract: An ear tag for administering hormones or other medication to sheep or cattle comprising a pair of reservoirs (10) and a pair of wicks (12) each in communication with a reservoir and located either side of a recess (7) which recess is intended to receive part of an animal's ear; a barbed latch (5) adapted to hold the two wicks and reservoirs either side of an animal's ear and to pass through an animal's ear in order to secure the ear tag to the animal;  the arrangement being such that medicated liquids may pass from the reservoir up the wicks and into the animal's bloodstream through the animal's ear which is held in the recess and in contact with the wicks.
Patent CA-2032351-A1 (CA)
Inventor: SMITH JOHN SCOTT
IPC: C22C19/00
Filed: 1990-12-14
Abstract: An oxidation resistant alloy containing iron, cobalt, nickel and at least 4 to 5% by weight aluminum having at least a duplex crystalline structure. One crystalline component of this structure is a gamma (fcc) phase having a gamma prime phase dispersed therein. The second crystalline component is enriched in aluminum compared to the first crystalline component and exhibits characteristics under X-ray diffraction and electron diffraction analysis of a BCC B2 structured phase.
Patent CA-2033572-A1 (CA)
Inventor: OHARA KATSUICHI
IPC: H04J3/16
Filed: 1991-01-03
Abstract: DIGITAL CROSS CONNECTION APPARATUS                ABSTRACT OF THE DISCLOSURE A cross connection apparatus which performs cross connection using the divided VT signals, as cross connection units, obtained by division of the VT sizes foming virtual tributary (VT) signals of input side transmission line signals into whole integers by predetermined common size unit, wherein it is possible to perform cross connection by common hardware even if a plurality of types of VT signals having different VT sizes are input.
Patent CA-2034987-A1 (CA)
Title: Front surface emitting diode laser
Inventor: KWON YOUNG-SE
IPC: H01S5/00
Filed: 1991-01-25
Abstract: A front-surface emitting, vertical cavity laser and its method of making in which a vertical laser cavity with Bragg reflectors(36,50,52) and an active layer(18), preferably formed by a quantum well, is formed on a substrate(48). Lateral current confinement is achieved by implanting a conductivity-reducing ion into the region(28) surrounding the quantum well. Electrical contact(44) to the upper side of the active layer is achieved by implanting a conductivity-increasing ion into the region(32) surrounding the cavity between the active layer(18) and the upper reflector(36). By such an electrical contact, the upper reflector(36) can advantageously be composed of dielectric layers(38,40). Light is then emitted through the upper reflector(36).
Patent CA-2035583-A1 (CA)
Title: Sulfoxides of bisthiomethylated and tristhiomethylated phenols
Inventor: MEIER HANS-RUDOLF
IPC: C07C323/52
Filed: 1991-02-01
Abstract: A-17951/=            Sulfoxides of bisthiomethylated and tristhiomethylated phenols Abstract of the Disclosure Sulfoxides of bisthiomethylated and tristhiomethylated phenols of formulae I and II                                 (I)                    (II) wherein R1 is hydrogen, C1-C18alkyl, cyclohexyl or C7-C9phenylalkyl, R2 and R3 are each independently of the other hydrogen or methyl, R4 is C4-C18alkyl, phenyl, C7-C9phenylalkyl, C1-C4alkyl-substituted phenyl, hydroxyethyl or a radical -(CH2)rCOOR5, wherein r is 1 or 2 and R5 is C1-C18alkyl, Z is sulfur,  , , wherein R2 and R3 are as defined above, or are a direct bond, and n, m and p are each independently of one another 0 or 1, and mixtures thereof with the corresponding non-oxidised compounds, are suitable stabilisers for materials which are sensitive to oxidative, thermal and/or light-induced degradation.
Patent CA-2037694-A1 (CA)
Title: Containers
Inventor: HAWKES SPENCER J
IPC: B65D1/24
Filed: 1991-03-07
Abstract: ABSTRACT OF THE DISCLOSURE          A modular, thermoplastic, multi-bottle container having a grid-like network of a plurality of circular protrusions in the bottom of the container, each of which protrusions can fit within a recess in the base of a bottle to keep the bottle upright.  The base of the container on its outside has a plurality of recesses defined by the protrusions and which can retain the tops of bottles stored in a lower identical container when the height of the container is such as to allow of such retention, when the containers are stacked one upon another.  Between the grid-like network of the recesses is a grid-like network of channels of a width not less than two times the width of the endwalls and sidewalls.  The containers are stackable in an interlocking manner by the channels receiving up to two of the peripheries of the sidewalls or endwalls of lower containers.  This provides additional stability.  The bottles in a lower container can provide support to the base of an upper container, when stacked.  The container is reusable and recyclable.
Patent CA-2041417-A1 (CA)
Inventor: UENO RYUJI
IPC: A61K31/557
Filed: 1991-04-29
Abstract: A pharmaceutical composition for treatment of a pancreatic disease comprising a 15-ketoprostaglandin compound in association with a pharmaceutically acceptable carrier, diluent or excipient.
Patent CA-2041484-A1 (CA)
Inventor: ERCUMS WALDEMAR M
IPC: B65B27/00
Filed: 1991-04-30
Abstract: WIRE CUTTING AND REMOVAL APPARATUS               Abstract of the Disclosure A roller conveyor supports a bale at a cutting and removing station. Side compactors and a top compactor compress the bale slightly for positioning it.   The bale is pushed against a wire cutting channel in which a blade having a surface that protrudes into and forms a groove in the bottom surface of the bale is passed diagonally across the bale, with the wires springing into a recess in the blade.   The blade continues to move, pulling the wire against the back wall of the recess until the wire exceeds its tensile strength and breaks. The bale is then lifted on pins  so that a wire pulling blade can be moved also diagonally across the top of the bale. The pulling blade also has a forwardly inclined surface that pushes the bale down while allowing the wires to be captured in a recess in the blade.   The blade is moved across the bale, capturing all of the wires and removing them from the bale.  Another embodiment uses a turner to rotate the bale to cut and remove wires from adjacent sides of the bale.
Patent CA-2043463-A1 (CA)
Title: Synergistic antimicrobial compositions
Inventor: BYCROFT NANCY L
IPC: A01N63/50
Filed: 1991-05-29
Abstract: ABSTRACT OF THE INVENTION    The invention discloses an antimicrobial compo-sition composed of an antimicrobial polypeptide and a hypothiocyanate component.  Synergistic activity is seen when the composition is applied at between about 30 and 40 degrees Centigrade at a pH between about 3 and about 5.  The composition is useful against gram negative bacteria such as Salmonella and E. coli.  A preferred composition is nisin, lactoperoxidase, thiocyanate and hydrogen peroxide.  Such a composition is capable of reducing the viable cell count of Salmonella by greater than 6 logs in 10 to 20 minutes.     MS #1624.1
Patent CA-2047206-A1 (CA)
Title: Road barricade
Inventor: FLADUNG MANFRED
IPC: E01F13/08
Filed: 1990-02-14
Abstract: ABSTRACT OF THE DISCLOSURE            A road barricade (22) can be swivelled upward from its open position parallel to the road surface, in which its U-shaped cross-section overarches the drive mechanism, about a shaft (20) secured to the ground, into barricade position.  To this end it has, on the side nearer the ground in the open position, a pair of guide curves (82, 83), or a pair of rectilinear guide ramps (27, 29) along which a pair of feed rollers (36,38) move, which are mounted on a threaded muff (34) which slides on a drive spindle (30).  This drive spindle is guided by means of running wheels (44, 46) on the base plate (14) of the barrier and carries a protective tube (50, 56) which surrounds the spindle (30).  In an approximately vertical closed position, the common shaft butt ends of the feed rollers and the running wheels engage in curved grooves (74) in the barricade element; the barricade element is swivelled downward in a controlled manner under it own weight by the co-operation of the guide lines with the feed rollers.  At least the free end region of the barricade element can be flexible, and at least the drive region can be heatable.
Patent CA-2047793-A1 (CA)
Inventor: YOSHIOKA OSAMI
IPC: C21D1/613
Filed: 1991-07-24
Abstract: An apparatus for continuously cooling a metal strip, which comprises: at least one cooling roll, which is freely rotatable and in contact with a metal strip continuously travelling in the longitudinal direction thereof, for continuously cooling the metal strip, a cooling liquid flowing through the interior of the cooling roll to continuously cool same, a contact area between the surface of the cooling roll and the surface of the metal strip being controllable; and a gas cooler, arranged on the exit  side of the at least one cooling roll, for continuously cooling the metal strip by blowing a cooling gas onto the surface of the metal strip so as to achieve a uniform temperature distribution in the width direction of the metal strip after the final cooling thereof, the gas cooler comprising a plurality of mutually independent nozzle headers for blowing the cooling gas onto the surface of the metal strip, and the plurality of nozzle headers controlling at least one of a flow rate and a flow velocity of the cooling gas in the width direction of the metal strip.
Patent CA-2051553-A1 (CA)
Inventor: OHNO IETATSU
IPC: B02C17/14
Filed: 1991-09-17
Abstract: A grinding method is provided which is capable of uniformly and precisely grinding objects for a short time, softening shocks produced when the rotation of a grinding barrel is changed between the forward direction and the backward direction to thereby eliminate bruises on the surface of grounded objects, coping with grinding for a large number of objects to be ground in a small quantity or a heavy-weight or a large-size object to be ground, and preventing contacts and collisions between objects to be ground.  The grinding method comprises the steps of rotatably mounting not less than one grinding barrels at locations away from the central axis of a rotary drum, enclosing a grinding material and objects to be ground in the grinding barrel&, rotating the grinding barrels in the directions identical to and opposite to the direction in which the rotary drum is rotated, and grinding the objects to be ground.  An grinding apparatus for implementing the above-mentioned method is also provided.
Patent CA-2053305-A1 (CA)
Title: Cosmetic composition
Inventor: BAR-SHALOM DANIEL
IPC: A61K8/00
Filed: 1990-04-19
Abstract: A method of treating and/or preventing alopecia (baldness, deficient hair growth) comprises administering to a patient in need thereof a therapeutically or prophylactically effective amount of a sulfated mono-, di- or oligosaccharide or a derivative, salt or complex thereof. The saccharide is preferably polysulfated, such as a polysulfated disaccharide, in particular sucrose, or a derivative, complex or salt thereof. Especially interesting polysulfated disaccharides are sucrose pentasulfate, sucrose hexasulfate, sucrose heptasulfate, and sucrose octasulfate, e.g. in the form of a potassium or sodium salt, or in the form of sucralfate.
Patent CA-2053585-A1 (CA)
Inventor: PAGE MARTIN J
IPC: A61P43/00
Filed: 1991-10-16
Abstract: The invention relates to a CHO cell-line capable of producing antibody, the cell-line having been co-transfected with a vector capable of expressing the light chain of the antibody and a vector capable of expressing the heavy chain of the antibody wherein the vectors contain independently selectable markers; also included is a CHO cell-line capable of producing a human antibody or an altered antibody, the cell-line having been transfected with a vector capable of expressing the light chain of the antibody and the heavy chain of the antibody; process for the production of antibody using a CHO cell-line and antibody having CHO glycosylation.
Patent CA-2055404-A1 (CA)
Title: Clamp and clamp supporting apparatus
Inventor: HYNES JOSEPH H
IPC: F16L37/00
Filed: 1991-11-13
Abstract: An improved clamp and clamp supporting apparatus includes a clamp of semicircular arcuate segments with enlarged ear portions having bolt studs positioned thereon in a staggered pattern. Through holes are drilled in the ear portions in a complementary pattern to receive the bolt studs of adjacent clamp segments with nuts threaded thereon to secure the clamps around abutting clamp hubs and maintain the hubs in sealed relationship. One of the clamp hubs has paired guide rods extending therefrom on opposite sides engaging mating holes in the clamp to allow positioning the clamp in a desired position without requiring additional support means.
Patent CA-2056074-A1 (CA)
Title: Gellable aqueous compositions containing polymers with special chelating functional groups useful for recovering oil from a oil field
Inventor: LOCKHART THOMAS P
IPC: C09K8/512
Filed: 1991-11-22
Abstract: Gellable compositions containing: (a) water; (b) a water-soluble organic polymer bearing special chelating functional groups; (c) a multi-valent metal ion capable of causing the polymer to crosslink, are useful to recover oil from a oil field.        Said compositions make it possible gels to be obtained which are endowed pith improved physical properties and show a higher stability under the conditions prevailing in the oil field.
Patent CA-2056254-A1 (CA)
Title: Bi-directional buffer line amplifier
Inventor: WARNER MICHAEL
IPC: H04M3/40
Filed: 1991-11-26
Abstract: An improved bi-directional buffer line amplifier is disclosed that provides a high performance analog interface between a Digital Network Interface Circuit (DNIC) and a transmission line.  The buffer line amplifier includes a transmit amplifier network including an input connected to a DNIC transmit signal output.  The input is arranged to receive transmit signals from the DNIC.  A transmit output is connected to a matching network via a selectable gain amplifying circuit.  The selectable gain amplifying circuit applies the transmit signals to the matching network in a first or a second gain level.  In the first gain level the gain amplifying circuit is removed from the transmit amplifier network and the transmit amplifier network operates as a unity gain amplifier. This allows the buffer line amplifier to work efficiently with transmission line loop lengths from zero to a nominal distance.  In the second gain level the gain amplifying circuit is connected in series between the transmit amplifier network and the matching network, thereby, significantly amplifying the transmit signals.  This allows the buffer line amplifier to work efficiently with transmission line loop lengths of a substantially greater distance than the nominal distance.  A receive amplifier network is also included that cancels the transmit signals from receive signals.  This provides the necessary phase error cancellation required by the DNIC for the error free reception of the receive signals.
Patent CA-2056400-A1 (CA)
Title: Safety helmets
Inventor: LOWRIE ROBERT
IPC: A62B18/04
Filed: 1990-05-25
Abstract: Safety helmets, totally encasing the wearer's head and incorporate breathing apparatus supplying air to and exhausting air from an isolated volume within the helmet, are well know. The isolated volume is defined by a viewing panel, an annular seal and the face of the wearer. There is a problem in fitting and removing such a helmet which has been solved in prior art constructions by making the helmet from two shell halves, hinged together at the crown of the helmet. The invention proposes a one-piece helmet shell (11), which has a front to rear dimension more the one and a half times that of the wearer's head, and providing a pad (17, 20) so supported that it can be displaced to the rear regions of the helmet, to facilitate fitting and removal of the helmet, and with the helmet fitted pushes the head of the wearer into pressure contact with the annular seal.
Patent CA-2057122-A1 (CA)
Title: Cross-linked semi-permeable gas separation membrane substantially derived from a reaction product of a thermoformable, thermosettable aromatic polycarbonate, polyestercarbonate, and/or polyester polymer and an epoxy resin
Inventor: PARKER THEODORE L
IPC: C08L67/00
Filed: 1991-12-05
Abstract: ABSTRACT The invention relates to a cross-linked semi-permeable gas separation membrane having a thin discriminating layer substantially derived from a reaction product of an epoxy resin and a thermoformable, thermosettable aromatic polymer of polycarbonate, polyestercarbonate, polyester, or a combination thereof, and a process of separating gases using the membrane.   37,263A-F