baber/WOPTO huggingface dataset:
Patent CA-2009448-A1 (CA)
Title: Ecologically responsive hornet (yellowjacket) trap
Inventor: IVANISKO GEORGE J
IPC: A01M1/02
Filed: 1990-02-07
Abstract: ABSTRACT            Some potentially disturbing and harmful insects, to wit, hornets (yellow jackets) may attack humans and pets and cause pain which may result in potenitally negative health affecting results. Such insects may be attracted to an appropriate container as submitted, containing bait such as meat and may by means of the process utilized be terminated without the use of chemicals within said container or trap.          The Ecologically sound Hornet (Yellow Jacket) Trap consists of a bait container, a funnel leading to a triangular shaped trap chamber where the hornet expires after a period of time.  The design of the trap is such that the hornet upon entering the trap is not able to retrace its entry by flying down the tip of the funnel by which it entered the trap chamber.  The latter is designed so that it is easily cleaned.  The bait chamber is easily replenished, cleaned and reattached.  Since the bait, meat (pet food) does not attract helpful insects such as bees, the trap is target specific (hornet) and environmentally sensitive.
Patent CA-2009833-A1 (CA)
Inventor: DYE JOHN F
IPC: F16L39/04
Filed: 1990-02-12
Abstract: A connection device having an intermediate member, a first connector, and a second connector.  The first and second connectors are releasably retained to the intermediate member, and the first and second connectors are rotatable with respect to the intermediate member.  The first and second connectors have a plurality of separate annular channels, and the intermediate member has a plurality of annular channels.  The channels of the first and second connectors communicate with the channels of the intermediate member in all rotatable positions of the first and second connectors, such that fluid may be passed through the separate channels of the intermediate member into the separate channels of the first and second connectors.
Patent CA-2009887-A1 (CA)
Inventor: CASSET JACQUES
IPC: B65H20/02
Filed: 1990-02-13
Abstract: Ce dispositif est du type comportant des rouleaux d'entraînement parallèles, entraînés en rotation en sens inverse l'un de l'autre et dont l'un est mobile transversalement par rapport à l'autre. Le dispositif comprend un moyen de liaison en rotation des rouleaux, insensible à leur distance d'écartement.
Patent CA-2011276-A1 (CA)
Title: Pulsation dampening device for super critical fluid expansion engine, hydraulic engine or pump in cryogenic service
Inventor: NESS LEIF A
IPC: F16L55/052
Filed: 1990-03-01
Abstract: ABSTRACT   The present invention discloses a surge bottle or pulsation dampening device for cryogenic services which comprises three sections: a liquid sump section comprised of an enclosed area containing a volume of an incompressible fluid; a warm gas volume section comprised of an enclosed area containing a volume of a compressible warm gas; and a laminar flow section which connects and allows for communication between the liquid sump section and the warm gas volume section.  The laminar flow section is comprised of a number of small bore, thin walled tubes which contain the incompressible fluid in the end connected to the liquid sump section and the compressible warm gas in the end connected to the warm gas volume section.  The bore of the tubes in the laminar flow section are such that any movement of either the compressible warm gas or the incompressible fluid in the tubes would be laminar.
Patent CA-2014132-A1 (CA)
Inventor: ISEDA KOHEI
IPC: G10L25/21
Filed: 1990-04-09
Abstract: A voice detection apparatus comprises a signal power calculation part for calculating a signal power of an input voice signal for each frame of the input voice signal, a zero crossing counting part for counting a number of polarity inversions of the input voice signal for each frame of the input voice signal, an adaptive prediction filter part for obtaining a prediction error signal of the input voice signal based on the input voice signal, an error signal power calculation part for calculating a signal power of the prediction error signal which is received from the adaptive prediction filter part, a power comparing part for comparing the signal powers of the input voice signal and the prediction error signal and for obtaining a power ratio between the two signal powers, and a discriminating part for discriminating voiced and silent intervals of the input voice signal based on the signal power calculated in the signal power calculation part, the number of polarity inversions counted in the zero crossing counting part and the power ratio obtained in the power comparing part.  The discriminating part discriminates the voiced and silent intervals of the input voice signal based on the number of polarity inversions.  On the other hand, the discriminating part compares an absolute value of a difference of power ratios between frames with a first threshold value and discriminates whether a present frame is a voiced interval or a silent interval depending on whether a previous frame is a voiced interval or a silent interval when the signal power of the input voice signal is less than a second threshold value.
Patent CA-2015154-A1 (CA)
Title: Liquid feed injection in a chloromethanes process
Inventor: WEST DAVID H
IPC: C07C19/03
Filed: 1990-04-23
Abstract: ABSTRACT        An adiabatic vapor phase chlorination of meth-ylene chloride, methyl chloride or a mixture thereof is improved by the injection of a portion of the methylene chloride, methyl chloride or mixture thereof into the reactor in the liquid state under conditions such that the temperature throughout the reaction zone is maintained at less than about 500°C.
Patent CA-2019595-A1 (CA)
Title: Apparatus for slicing vegetables
Inventor: JULIAN JOHN C
IPC: B26D7/06
Filed: 1990-06-22
Abstract: An apparatus for slicing vegetables includes a stationary member holding stationary knives about the periphery of a rotating impeller hub. The hub has a hollow central opening for receiving vegetables. A plurality of circular tubular extensions having circular openings therein extending radially from the central opening in the impeller hub. Each circular opening has an impeller tube located therein. The impeller tube transports the vegetable outwardly by centrifugal force against the cutting knives. As the impeller hub rotates inside the stationary knife holding member the impeller tube simultaneously rotates upon the impeller hub such that each successive slice of the vegetable is at an angle, preferably 90 degrees, to the preceding slice. A bearing is located between the impeller tube and the impeller hub to allow this relative rotation. A pair of seals, one on each side of the bearing, prevents water and other contaminants from entering the bearing.
Patent CA-2019750-A1 (CA)
Title: Masking composition and method
Inventor: WILK CHRISTINE
IPC: B05D1/32
Filed: 1990-06-25
Abstract: ABSTRACT A masking composition for use in paint spray booths which comprises an aqueous solution or dispersion of a cellulose gum, a plasticizer and preferably a surfactant, The composition is applied to the surfaces and related paint spray booth equipment to mask them from paint overspray during the painting operation.   The maskant forms a water soluble film which can easily be removed by  washing  with  water  subsequent  to  the  painting operation.
Patent CA-2019999-A1 (CA)
Title: Self supply automatic ink stamping device
IPC: B41K3/54
Filed: 1990-06-27
Abstract: An  automatic  contact  ink  stamping  assembly characterized by repetitive movement of the die stamping surface between inverted positions defining an ink supply and a printing position.  The apparatus is characterized by a stamping die assembly pivotally mounted to a carrier block reciprocally  driven by  a  piston  and  cylinder  assembly between the ink supply and printing position.   The die assembly is provided with an upstanding ear having a cam surface which engages a rotatably mounted wheel in a manner to cause the die assembly to pivot 180 degrees responsive to the stroke of the piston and to align the die stamping surface in an accurate position perpendicular to the axis of said piston in both the ink supply and printing position.
Patent CA-2020843-A1 (CA)
Inventor: HART CHARLES R
IPC: G03G7/00
Filed: 1990-07-10
Abstract: Abstract Imagable Copy Film An imagable copy film comprises a film substrate of a thenmoplastics polymeric material with a percentage thermal expansion in the film widthwise direction (TD) at 150°C of 0.01 to 1.0%, and a percentage thermal shrinkage in the film lengthwise direction (MD) at 150°C of 0.4 to 2.0%.  The substrate has a receiving layer on at least one surface thereof, comprising an acrylic and/or methacrylic resin.
Patent CA-2021288-A1 (CA)
Title: Device for conveying a gaseous medium
Inventor: HOPFENSPERGER REINHOLD
IPC: F04D17/00
Filed: 1990-07-16
Abstract: Abstract Device for Conveying a Gaseous Medium A radial-flow fan is disclosed which is especially suited for use in gas boilers employing ceramic area burners. This radial-flow fan has a spiral-shaped inner contour and a closed, backward bladed impeller. It takes up little space and produces little noise.          (Fig. 1)
Patent CA-2023159-A1 (CA)
Inventor: CHALES BERNARD
IPC: F16H1/28
Filed: 1990-08-13
Abstract: Speed-reducing mechanism characterised in that each planet gear (15) has on its central axis a cylindrical bearing surface (16) (internal or external) designed to centre itself on and react with a complementary cylindrical bearing surface (21) (external or internal, respectively) provided on a star-shaped planet-gear support (20) which, owing to the material from which it is made and its design, has sufficient elasticity in order constantly to press the teeth of the planet gears into the teeth of their respective disc, thus making it possible to take up the play inherent in the manufacture of this type of mechanism and also making it possible to absorb, without degradation, such excess loads as may arise, for example in the course of the use of the speed-reducing mechanism as an articulation for a vehicle seat. 
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Patent CA-2026111-A1 (CA)
Inventor: CONVERT GUY
IPC: H01J25/02
Filed: 1990-01-26
Abstract: The invention provides for a device producing ultrahigh frequency energy from an electron beam. It mainly comprises: an electronic gun (1) producing an electron beam (8) in a so-called injection zone (3); modulating ultrahigh frequency circuitry (7) for superimposing an alternating voltage at a given frequency on a beam voltage within the injection zone, the amplitude of the said voltage being such that, in one of its alternations, it provides for transition between the passing state and the effective cathode state, thus causing modulation of the current carried by the electron beam; an output ultrahigh frequency circuitry (7), operating at the modulation signal frequency and driven by the aforesaid modulated current.
Patent CA-2030415-A1 (CA)
Title: Amino alcohols
Inventor: PARKES KEVIN E B
IPC: C07D333/36
Filed: 1990-11-21
Abstract: Abstract The invention provides novel alcohols of the formula              I   wherein Ra represents azido or phthalimido, R4 represents alkyl, cycloalkyl, cycloalkylalkyl, aryl or aralkyl, R7 and R8  together represent a trimethylene or tetramethylene group which is optionally substituted by hydroxy, alkoxycarbonylamino or acylamino or in which one -CH2- group is replaced by -NH-, -N(alkoxycarbonyl)-, -N(acyl)- or -s- or which carries a fused cycloalkane, aromatic or heteroaromatic ring and R9  represents alkoxycarbonyl, monoalkylcarbamoyl, monoaralkylcarbamoyl, monoarylcarbamoyl or a group of the formula   in which R10 and R11 each represent alkyl, and a process for their manufacture. These alcohols are useful as intermediates, for example in the manufacture of amino acid derivatives which can be used in the prophylaxis or treatment of viral infections.
Patent CA-2032936-A1 (CA)
Title: Flaccid bag bottle for dispensers
Inventor: STOODY WILLIAM R
IPC: A61J9/00
Filed: 1990-12-21
Abstract: ABSTRACT     A collapsible flaccid bag bottle, such as those used for baby bottles, for closed containment of fluid to be aspirated therefrom. Integral with the battle is a thin passive film, for example, a 2 mil thick additional layer of plastic, that passively manages collapsing of the bottle as fluid is dispensed. The presence of this layer insures against sustainment and proliferation of fluid retention pockets that typically proliferate inside of flaccid bags and block discharge passage of fluid,
Patent CA-2034314-A1 (CA)
Title: Surface treatment of sheet-or plate-like blanks
Inventor: LAUBE HANS-JURGEN
IPC: B23P13/02
Filed: 1991-01-16
Abstract: SURFACE TREATMENT OF SHEET- OR PLATE-LIKE BLANKS     ABSTRACT OF THE DISCLOSURE        One side of a sheet- or plate-like bank of metallic, plastic and/or other material is provided with at least one set of parallel grooves prior to being provided with an array of pyramidal and/or conical depressions.  The grooves can be formed by brushes or by grinding, and the depressions can be formed by a rotary debossing tool having a peripheral surface provided with crossing transversely extending rows and circumferentially extending columns of protuberances.  The treatment enhances the ability of the one side of the thus obtained sheet- or plate-like body to accept and retain a layer of lacquer, to be provided with an adherent layer of oxide or to accept a layer of adhesive prior to being bonded to a similarly treated or to an untreated second  plate- or sheet-like body.  The depth of the depressions can match or approximate the average depth of the grooves.  The grooves can form two set of parallel grooves, and the grooves of one set can cross the grooves of each other set at an angle of 90 +45 .
Patent CA-2037244-A1 (CA)
Title: Method for purifying somatotropin monomers
Inventor: STORRS STEPHEN B
IPC: C12R1/19
Filed: 1991-02-27
Abstract: A method for purifying and recovering biologically active somatotropin monomers from refold solution following the solubilization and naturation of refractile bodies of host cells produced by recombinant DNA methodology. The purification process is based on the discovery that somatotropin monomers and somatotropin oligomers having overlapping isoelectric points may nevertheless be separated by selective precipitation over a narrow pH range. Host cell residues including proteins, pyrogens and other impurities present in the refold solution are effectively removed in the process. The purified somatotropin monomers recovered from solution after removing precipitated solids are suitable for parenteral application to target animals without further purification.
Patent CA-2039109-A1 (CA)
Inventor: CHANG DAVID B
IPC: B05D7/24
Filed: 1991-03-26
Abstract: SELECTIVE EMISSIVITY COATINGS FOR INTERIOR    TEMPERATURE REDUCTION OF AN ENCLOSURE                ABSTRACT OF THE DISCLOSURE      Selective  emissivity  coatings  are  disclosed  for temperature reduction of enclosures such as vehicles and building structures.   The coating includes a selective emissivity material such as silicon-oxy-nitride having a desired thermal emissivity function which is high in the 8-13 micron wavelength region, and low elsewhere except in the visible wavelength region.  The material provides a mechanism  for  radiative  cooling  of  the  enclosure  by converting the blackbody radiation of the enclosure, which would be reflected by the earth's atmosphere,  into far infrared radiation which is transmitted by the atmosphere. According to another aspect of the invention, the coating further comprises a semimetal which is reflective of radiation in the near infrared  region, thereby reducing the solar heat load on the enclosure.   One suitable semimetal is LaB6.   The coating may be applied to the exterior surface of vehicle and building windows, or to the exterior, non-window surfaces of building structures. For the  latter,  the coating may take the form of a conventional paint to which is added tiny particles of the semimetal and selective emissivity materials to achieve the radiative cooling and reflection of incident infrared radiation.
Patent CA-2040752-A1 (CA)
Title: Hydroquinone diethers, their preparation and their use
Inventor: KARDORFF UWE
IPC: C07D261/08
Filed: 1991-04-18
Abstract: O.Z. 0050/41548 Abstract of the Disclosure:  Hydroquinone diethers of the general formula I                           I   where R1 is hydrogen, halogen or C1-C5-alkyl, A and B are each unsubstituted or substituted methylene, ethylene or propylene and X and Y are each unsubstituted or sub-stituted hetaryl, processes for their preparation and pesticides.
Patent CA-2041966-A1 (CA)
Inventor: CHRISTENSEN SCOTT C
IPC: G01T7/02
Filed: 1991-05-07
Abstract: MATERIAL ANALYZER WITH CARROUSEL A material analyzer includes a container; a radiation source disposed within the container; a detector disposed within the container for detecting radiation that is secondarily emitted by a material sample within an activation region located between the radiation source and the detector when the material sample is bombarded by radia-tion from the radiation source and for producing signals in response to said secondarily emitted radiation; a computer for processing the signals to determine the content of the material sample; and a carrousel for transporting a material sample from outside the container to within the activation region. The carrousel is disposed about an axis of rotation located between the activation region and a receiving region located outside the container. and has a pair of sample containment chambers that are alternately moved between the receiving region and the activation region when the carrousel is rotated about said axis. A radiation shield within the container shields the the outside of the container from radiation derived in the activation region from the radiation source. Material samples are placed in buckets for loading into the sample containment cham-bers. The bucket includes a perimetric side wall having a predominant surface area that is contoured on opposite sides of the side wall to define exterior indentations in the predominant surface area; and a handle, including a pair of tongs shaped and disposed for insertion into the side wall indentations. and a telescopic handle joining the tongs.
Patent CA-2046286-A1 (CA)
Title: Method of forming an optical fibre coupler and a coupler so formed
Inventor: MORTIMORE DAVID B
IPC: G02B6/28
Filed: 1990-03-20
Abstract: Six secondary optical fibres (20) are located about and parallel to a central op tical fibre (21) by a capillary tube (22) to form a fibre bundle which is then formed into a fused, tapered coupler in which the tapering is stopped when the proportions of light coupled out of the central fibre (21) at 1.3 and 1.53 .mu.m are first equa l. The fusion process can provide sufficient fusion between the central fibre and each secondary fibre to provide a 1 to (n + 1) cou pler where n is the number of secondary fibres. This method provides a coupler which is wavelength-flattened between 1.3 and 1.53 .mu .m using similar fibres.
Patent CA-2046816-A1 (CA)
Inventor: KECK RICHARD J
IPC: H02K3/487
Filed: 1991-07-11
Abstract: ABSTRACT      A method and apparatus for the assembly and disassembly of dovetail shaped wedges into and from the coil slots of dynamoelectric rotors using a fixture attached to a rotor shaft coupling in a selectable radial position so as to be aligned with a rotor slot.  The method and apparatus  further uses a pulling tool attached to a wedge and also connected to a winch located on the fixture via a winch belt extending between the tool and fixture.
Patent CA-2047355-A1 (CA)
Title: High efficiency water heater
Inventor: CIFALDI ROCCO
IPC: F24H8/00
Filed: 1991-07-18
Abstract: ABSTRACT OF THE DISCLOSURE A multi-stage high efficiency gas fired water heater is provided which includes a lower storage tank and an upper recovery tank around a central flue.  Scraping chambers are formed above and below the storage tanks for heat transfer from heated combustion gases. Secondary flues extend through the recovery tank to recover further heat from heated combustion gases.  The storage tank acts as a lower volume booster tank from which water at a pre-set temperature may be drawn. Water in the recovery tank is preheated by heat transfer from the combustion gases in the scraping chambers and the central and secondary flues.
Patent CA-2048636-A1 (CA)
Inventor: DICKERSON ALAN W
IPC: B60P1/16
Filed: 1990-03-02
Abstract: A very large truck comprising a frame including spaced frame members (10, 11;  41, 42; 61, 62; 67, 68) carrying a forward frame means (14, 53, 63) for supporting at least two front wheels (W f) via suspension means (92), said frame means carrying hubs (12, 13; 45, 46; 81; 82) each supporting a pair of rear wheels (W r) one on either side of each hub, means (24, 25; 47; 73, 74) for pivotally mounting a substantially rigid load supporting body (B), means (B; 56, 57; 89) for maintaining the transverse spacing between the rear wheel pairs, said frame members being constructed to provide resistance to torsional movement of said rear wheels due to braking and traction forces while providing compliance for limited rotation of said rear wheel pairs about a longitudinal axis of each frame member to allow side tilting of the rear wheel pairs as the truck passes over uneven terrain.
Patent CA-2050387-A1 (CA)
Inventor: LOUIE PAUL
IPC: H02G7/05
Filed: 1991-08-30
Abstract: A clamp for suspending a conductor from a support structure includes a body and a cover, each provided with a conductor-supporting surface having a trough and a set of upstanding tabs lining the sides of the trough and protruding from the conductor-supporting surface.   The tabs on the cover are spaced from the tabs on the body in the longitudinal direction of the troughs such that the two sets of tabs intermesh when the cover is positioned on the body.   The cover is movable between first and second positions in which the troughs, together with the two sets of tabs, enclose the circumferential surface of a conductor retained in the  apparatus.    A  plurality  of  conductors  may accommodated by a single clamp construction.
Patent CA-2050973-A1 (CA)
Title: Receptor sheet for thermal mass transfer imaging
Inventor: HENRY ROBERT M
IPC: B41M5/382
Filed: 1991-09-09
Abstract: Abstract A receptor sheet for thermal mass transfer imaging comprising a polymeric image-receptive layer comprising a polymer having a melt transition onset no higher than the melting point of a compatible donor sheet wax, and having a melt viscosity at the melt temperature of said donor sheet wax of at least 1 x 104 poise.