baber/WOPTO huggingface dataset:
Patent CA-2130988-A1 (CA)
Inventor: KANEMARU SHINICHI
IPC: A61K45/06
Filed: 1994-08-26
Abstract: An interferon is administered singly or in combination with other pharmacological agents to patients with idiopathic sudden sensorineural hearing loss, whereby the patients are remarkably improved.
Patent CA-2132739-A1 (CA)
Title: Aid to hearing speech in a noisy environment
Inventor: WALTON JOSEPH P
IPC: H04R25/00
Filed: 1993-03-16
Abstract: A signal processing circuit is incorporated into an audio reproducing device for suppressing noise while preserving distinctive features of speech. A noise detecting circuit includes a low pass filtering circuit (12) and a level detector (14). An output signal (C) from the detecting circuit controls a variable high pass filtering circuit (20) to attenuate a range of low frequencies of an input signal (A) proportional to the detected level of noise.  The variable high pass filtering circuit exhibits a family of variable response curves (22, 24, and 26) that vary in slope below a common cut-off frequency (28) that is below a range of frequencies that convey a majority of second formant transitions between consonants and vowels.
Patent CA-2133732-A1 (CA)
Title: Correction for a pressure transducer
Inventor: FRICK ROGER L
IPC: G01L9/00
Filed: 1993-05-17
Abstract: ABSTRACT OF THE DISCLOSURE      A two-wire transmitter includes a pressure sensor comprising first and second sensing means each having an impedance value which varies with pressure being measured and with a predetermined environmental condition, such as line pressure or temperature.  A fixed impedance has an impedance value which is substantially unchanged by variations in the predetermined environmental condition. switch alternately connects the fixed impedance into operative relation with the first and second sensing means to derive first and second signals which are each functions of pressure being measured and the predetermined environmental condition.  A correction circuit processes the first and second signals, such as by a polynomial series or with a lookup table, to derive a corrected pressure signal.
Patent CA-2137451-A1 (CA)
Title: Bleaching recycled pulp with a reductive-oxidative sequence
Inventor: KOGAN JACK
IPC: D21C5/02
Filed: 1994-04-05
Abstract: A method of bleaching waste paper pulp. The pulp is first treated to a reductive chemical followed by acidification and washing or dewatering. The pulp is then subjected to ozone and then to hydrogen peroxide.
Patent CA-2139692-A1 (CA)
Title: Composite shaft structure and manufacture
Inventor: NOLET STEVEN C
IPC: B29C48/151
Filed: 1995-01-06
Abstract: The invention provides improvements to a composite member that has a plurality of plies. The improved composite member has (1) an interior ply which functions to dampen or resist sudden forces exerted on the composite member, (2) an intermediate load-carrying ply, and (3) an exterior abrasion-resistant ply.  These plies have multiple, often intertwined fiber components disposed or  imbedded with a matrix  material, preferably  Nylon-6 thermoplastic, to inhibit sharp edges during breakage. One or more of the plies typically has "bi-axial" or "tri-axially" braided fiber geometries wherein one or more fibers are helically wound about the circumference of the member.  The helically oriented fibers are oriented at a selectively variable angle which influences the overall bending strength of the composite material.  In one aspect, the angles of the fiber components and other factors are used to maintain substantially uniform cross-sectional area over the length of the tubular member while  simultaneously varying the bending  stiffness.  In another aspect,  the intermediate ply is constructed with two or more sub-plies.  Such sub-plies can include tri-axially extending plies, and circumferentially-wound plies.  The circumferentially-wound plies are often wound more tightly at the ends of the  composite member to increase resistance  to stresses caused by objects within the tubular shaft.  A composite member constructed according  to the invention resists sudden or impact forces and has high, selectively variable bending strength, high impact resistance, and safe failure modes.
Patent CA-2140844-A1 (CA)
Title: Dentifrice containing antibacterial material
Inventor: SAKUMA SHUJI
IPC: A61Q11/00
Filed: 1995-01-23
Abstract: A dentifrice (tooth paste) having an antibacterial effect to prevent production of carious tooth and generation of periodontal diseases such as alveolar blennorrhea. The dentifrice contains hydroxylapatite powder. The hydroxylapatite powder carries therein an antibacterial metal such as silver, copper and/or zinc. The antibacterial metal is adsorbed to and/or combined, under ion exchange, with the hydroxylapatite powder.
Patent CA-2141435-A1 (CA)
Title: Ester of an organic nitrate and a salicylate
Inventor: BYRNE WILLIAM
IPC: A61P9/08
Filed: 1993-07-26
Abstract: A pharmaceutical product for relief of the symptoms of angina pectoris and the like comprises an ester or a combination of an organic nitrate, and a salicylate, or derivative thereof, having anti-platelet activity.
Patent CA-2144628-A1 (CA)
Title: A fungicidal compound
Inventor: BREINHOLT JENS
IPC: A23L3/3544
Filed: 1993-09-14
Abstract: Compounds having general formula (I) or general formula (II). Compounds of formulae (I) or (II) have interesting anti-fungal activities and may, accordingly, be used as active ingredients in fungicidal compositions.
Patent CA-2144806-A1 (CA)
Title: Roof hatch for attic access
Inventor: FRIESEN JAKE
IPC: E04D13/147
Filed: 1995-03-16
Abstract: A combined roof vent and attic access hatch has a base unit with a curb surrounding the hatch access opening and a flashing surrounding the curb for incorporation into the roof. Ventilation openings are formed in the curb, near the top. A cap unit extends over the curb and has a peripheral flange spaced outwardly from the curb. A centering flange extends inwardly from the peripheral cap flange and is also equipped with ventilation openings, screened to prevent animal access to the attic.
Patent CA-2149346-A1 (CA)
Inventor: KALE HEMANT D
IPC: F24H1/20
Filed: 1995-05-15
Abstract: A storage tank for water heaters and the like having a vertical, cylindrical tank, with a curved top wall, means for heating water within the tank, a cold water inlet and a hot water outlet at the top includes an inlet dip tube with means for transferring heat from the upper portion of the tank to the lower portion of the tank. The dip tube has a relatively large surface area to effect increased heat transfer between incoming water and heated tank water.
Patent CA-2152587-A1 (CA)
Title: Port adaptor and protector and container having same
Inventor: ASWAD ANDREW D
IPC: B65D41/28
Filed: 1994-11-16
Abstract: An improved adaptor and protector for same which is removably sealing an opening of the adaptor located at an end of a tubular member. The adaptor has a longitudinal passageway for receiving a cannula. An upper end of the adaptor has an interior diameter defining a first end of the passageway for receiving the cannula. A lower end of the adaptor has an interior diameter defining a second end of the passageway adapted for receiving an injection site wherein the diameter of the first end is larger than the diameter at the second end. A middle portion intermediate the first end and the second end has a tapering interior diameter for directing the cannula to the injection site and further having an exterior surface with gripping surfaces. The tapering interior diameter of the middle portion of the adaptor includes guiding members to direct the cannula or other injection devices. The adaptor may also be provided with a protector removably sealing an opening located at an end of the adaptor. The cap portion includes means extending therefrom for allowing removal of the cap portion from the adaptor. Additionally, the present invention provides an improved container assembly.
Patent CA-2153140-A1 (CA)
Inventor: ABRAHAM CHARLES
IPC: H04B3/56
Filed: 1995-06-30
Abstract: Apparatus for electrical line communication that includes a coupler at each of two or more locations along a pair of lines, the coupler having capacitive circuits serially connected with an air-core transformer. The capacitive circuit is designed to resonate with the air-core transformer at a preselected frequency. A transmitter, receiver and modem may also be provided at each location. The apparatus incorporates a novel phase linear coupler which eliminates noise and is matched resistively to the characteristic impedance of the line at a preselected frequency. This apparatus therefore linearizes communication on the line and allows high speed data and voice communication over long distances.
Patent CA-2153503-A1 (CA)
Title: Head mounted display utilizing diffractive optical elements
Inventor: COX J ALLEN
IPC: G02B27/00
Filed: 1994-02-01
Abstract: A head mounted display having an image SOD, an optical relay system and a combiner for producing an image from the image source to the eye of a pilot in which the optical system includes at least one diffractive surface to compensate for aberrations and distortions in the display.
Patent CA-2156449-A1 (CA)
Title: Fireplace apparatus
Inventor: STANLEY GEORGE WILLIAM
IPC: F24B1/181
Filed: 1995-08-18
Abstract: The fireplace is suitable for camp-ground use, and comprises a circular bowl supported on a pedestal. The ash-can fits inside the hollow pedestal. Air for the fire enters the pedestal, and emerges into the bowl underneath the fire grate. Ashes from the fire drop through holes in the grate, not directly into the ash-can, but first onto the floor of the bowl, where the incoming air promotes complete combustion.
Patent CA-2156522-A1 (CA)
Inventor: LESSEN MARTIN
IPC: B29C48/12
Filed: 1994-02-25
Abstract: Method and apparatus for the extrusion of tubing, sheets and profile shapes, wherein shearing strains in the material being extruded through a die (2) serve to orient the mi-crostructure of the material so that its strength properties are improved in the direction (15) transverse to the extruding direction (9).
Patent CA-2156930-A1 (CA)
Inventor: CIOCA GHEORGHE
IPC: A61Q17/04
Filed: 1994-02-24
Abstract: Improved sunscreen compositions and their methods of manufacture are provided.  The sunscreen compositions include extracts of cereal plants and an optional sunscreen blocking agent. The compositions optionally also may include dihydroxycinnamic derivatives.
Patent CA-2157088-A1 (CA)
Title: Removal of olefins from mixtures thereof
Inventor: DAVIS JAMES CRITSER
IPC: B01D53/72
Filed: 1995-08-28
Abstract: The present invention provides a method and apparatus for the separation of an olefin from a fluid containing one or more olefins.  The separation is accomplished by contacting the fluid with an absorbing solution containing specified copper(I) complexes.  The present invention also encompasses a method and apparatus for the formation, in situ, of unstable copper(I) complexes from copper(II) analogues and metallic copper.
Patent CA-2159939-A1 (CA)
Title: Adhesive composition and process therefor
Inventor: PALUMBO GIANFRANCO
IPC: A61F/
Filed: 1995-10-05
Abstract: The invention relates to an elastomeric hot melt adhesive in the form of a stable foam which can be used to elasticate structures such as absorbent articles which can be applied without the use of any glue. A hot melt adhesive composition is used as the basis for the foam, which composition comprises at least one thermoplastic elastomer and at least one tackifying resin, the thermoplastic elastomer(s) being a styrene/butadiene/styrene (SBS) copolymer or a blend of styrene/butadiene/styrene (SBS) copolymer with styrene/ isoprene/ styrene (SIS) in which SIS is present in an amount equal to or less than 50% by weight of the total block copolymer, and wherein the hot melt adhesive composition is further characterized in that: a) it is capable of bonding, when applied from the molten state, to plastic and/or cellulosic materials with a 90° peel force of not lower than 0.5 N/cm (as herein defined); it has a tensile strength retention after 50 cycles (as herein defined) of at least 40%; and c) it has a viscosity of 120,000 cps or less at 180°C and an applied shear of 80 sec-1.
Patent CA-2160101-A1 (CA)
Inventor: HERRMANN HANS-FRIEDRICH
IPC: C07F17/00
Filed: 1995-10-06
Abstract: The present invention further relates to metallocene compounds of formula 1 wherein M1, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R3', R4', R5', R6', R7', R8', R9', R10' and R11' are as defined in the specification.    The compounds of formula I are suitable for use as catalysts for olefin polymerization.
Patent CA-2162046-A1 (CA)
Title: An infant seat
Inventor: DREXLER JOANNES HERMAN
IPC: A47D1/00
Filed: 1994-05-10
Abstract: The invention relates to an infant seat, comprising a portable bucket seat body having a rocker bottom (2), an auxiliary support (11) being provided, that is mounted to be moved from an inoperative position in which it is sunk into the plane of the bottom, towards an operative position in which it slopes rearwardly and downwardly from the bottom plane.  According to the invention the U-shaped auxiliary support (11) is mounted with the free ends of the support legs about a transverse axis (12) for a downward swinging movement, a locking device being provided, adapted to be actuated at the top behind the backwall of the bucket-shaped seat to lock the auxiliary support (11) in its active and inactive positions.
Patent CA-2163725-A1 (CA)
Inventor: PAPPAS MICHAEL J
IPC: A61F2/38
Filed: 1995-11-24
Abstract: A prothesis tibial bearing of thermoplastic material has a planar surface which engages the mating planar surface of a second prothesis component such as the tibial platform. The typically metal platform edge wipes across the inner surface region of the bearing causing deformation of the bearing   surface.      This   deformation   causes   stress magnification in the bearing at the platform edge region. The edge region of the platform planar surface is tapered to provide a gradual curved ramp between a relatively small corner radius at the platform edge and the platform planar surface,  the tapered region being tangential to the edge radius and to the platform planar surface.   The stress concentration increase at the edge region of the bearing is reduced at  the platform edge  region to below  100%  and preferably to about 25% of the stress value between the bearing and the platform in the region interior the platform edge.  The tapered surface region is preferably a curvature of tangential contiguous radii tangent to the platform planar surface, but may be planar.
Patent CA-2165688-A1 (CA)
Title: Beta-aminovinylketones; process for preparing them and their use for the preparation of beta-diketones
Inventor: CASADO MICHEL
IPC: B01J27/10
Filed: 1994-06-16
Abstract: Novel  beta -aminovinyl ketones of general formula (VI), wherein R<1> is, in particular, an alkenyl, alkynyl, cycloalkyl or cycloalkenyl group; R<2> is, in particular, an electron attracting substituent such as nitro, acyl, ester, alkylthio, carbamoyl, thiocarbamoyl or haloalkyl; R<3> is, in particular, an alkyl or alkoxy group or a halogen atom; n is 1 or 2 and m is 0, 1, 2 or 3. A method for preparing such compounds by carrying out a condensation reaction between ketone R<1>-CO-CH<3> and, in particular, benzonitrile substituted by (R<2>)n and optionally (R<3>)m, in the presence of a strong base, as well as the use of said  beta -aminovinyl ketones of general formula (VI) for preparing the corresponding  beta -diketones, are also disclosed.
Patent CA-2165901-A1 (CA)
Title: Aldolisation selective de l'acetone en diacetonealcool par un catalyseur basique solide
Inventor: TEISSIER REMY
IPC: B01J23/00
Filed: 1995-12-21
Abstract: Aldolisation sélective de l'acétone en diacétone-alcool par un catalyseur basique solide. L'aldolisation se caractérise par le fait que le catalyseur basique solide a la formule générale (II) suivante: [(Mg2+)1-x(Al3+)x(OH-)2]+x[(OH-)x(H2O)n]-x (II) avec 0,20 ~ x ~ 0,33, n ayant une valeur inférieure à 1,ce catalyseur ayant une structure cristalline définie, analogue à celle de l'hydrotalcite ou encore de la Meixnerite. Et, procédé de préparation du catalyseur (II).
Patent CA-2168105-A1 (CA)
Inventor: HORTON DUANE L
IPC: A61M39/00
Filed: 1994-08-05
Abstract: A capping device (10) for covering the access port (53) of a conduit connector (50) includes a first cap (20) having a downwardly extending skirt (28) and an access opening (26) through which a bronchoscope, catheter or other small diameter medical device may be inserted. The skirt (28) includes an inwardly extending rim (25) around its internal surface which detachably snaps over a lip (54) around the access port (53). The access opening (26) is selectively sealable by a second cap (30) that is tethered to the first cap (20) by a flexible tether strap (40). The second cap (30) also includes a downwardly extending skirt (36) including an inwardly extending rim (32) around its internal surface which detachably snaps over a lip (29) around the first cap (20). The capping device further includes a flexible anchor scrap (60) extending from the first cap (20) which snaps onto a knob (55) on the connector (50) thereby retaining the capping device (10) on the connector (50) when not in use.
Patent CA-2170118-A1 (CA)
Title: Peelable bonded ribbon matrix material; optical fiber bonded ribbon arrays containing same, and process for preparing said optical fiber bonded ribbon arrays
Inventor: SHUSTACK PAUL J
IPC: G02B6/44
Filed: 1996-02-22
Abstract: A one-part,  cured,  radiation-curable liquid matrix composition for affixing coated and inked optical fibers in a ribbon configuration which is peelable from the coated and inked fibers without damage to the integrity of itself or the fibers is disclosed.  The composition comprises an aliphatic urethane acrylate oligomer; a reactive monomer having one or more acrylate or methacrylate moieties; a release  agent;  and  an  optional  photoinitiator.    Also disclosed are  an  optical  fiber  ribbon  array  prepared therefrom; a process for removing such matrix composition from inked and coated fibers; a process for preparing such ribbon array; and a radiation-curable coating composition generally applicable for coating a substrate.
Patent CA-2171093-A1 (CA)
Title: Actionneur magnetique bistable
Inventor: MCKEAN BRIAN
IPC: H01H50/36
Filed: 1994-09-12
Abstract: Actuateur magnétique (10) approprié au fonctionnement de disjoncteurs de circuits électriques et comprenant une structure de bâti stratifiée (12) qui permet d'accroître les forces de maintien du flux magnétique. L'actuateur comprend un bâti magnétique (12) qui forme à la fois des trajets de flux magnétique à faible et forte réluctance et qui est pourvu d'au moins un aimant permanent (30) et d'un induit (40) apte à effectuer un mouvement de va-et-vient axialement dans une première direction à l'intérieur du bâti (12). La configuration de l'actuateur permet de créer un premier trajet de flux magnétique à faible réluctance et un premier trajet de flux magnétique à forte réluctance lorsque l'induit (40) se trouve dans une première position, ainsi qu'un second trajet de flux magnétique à faible réluctance et un second trajet de flux magnétique à forte réluctance lorsque l'induit (40) se trouve dans une seconde position. Une paire d'enroulements électromagnétiques (60, 61) est utilisée pour entraîner l'induit (40) entre les première et seconde positions. Lorsqu'on accroît une dimension linéaire du dispositif en ajoutant des stratifications au bâti et qu'on les fait correspondre, la structure géométrique de l'actuateur permet l'augmentation de la même dimension linéaire de l'aimant et de l'induit, et le flux magnétique permanent peut être accru pour répondre à toute spécification exigée concernant le dispositif à l'aide des mêmes composants de base. La conception du bâti stratifié permet d'améliorer considérablement le trajet à faible réluctance afin d'obtenir un dispositif plus compact ainsi que des forces de maintien supérieures et des temps de commutation plus courts.
Patent CA-2171962-A1 (CA)
Title: Method to refrigerate a jacket for keeping a transplant cold
Inventor: DESGRANDCHAMPS FRANCOIS
IPC: A01N1/02
Filed: 1995-06-22
Abstract: A jacket (10) for keeping a transplant (46) cold during the time the transplant in surgical way is connected to a receiver comprises a wall (12, 14) with a cavity (22) containing a frozen liquid, which melts under absorption of heat from the transplant. Before the transplant is placed in the jacket (10),the liquid, e.g. water, is frozen by being subjected to vacuum, vapour released from the liquid being absorbed by a substance, e.g. zeolite.
Patent CA-2172225-A1 (CA)
Inventor: MITANI KATSUAKI
IPC: G03B21/62
Filed: 1996-03-20
Abstract: The present invention provides a bright light transmission screen and light diffusion panel.  Am amtireflective film is disposed on the surface of a lenticular lens sheet substrate included in a light transmission screen.  The antireflective film is made from a high polymer compound of a low refractory index and has a thickness that is different from .lambda./(4n).  The antireflective film may also be disposed on a Fresnel lens sheet substrate or a light diffusion panel substrate.
Patent CA-2172235-A1 (CA)
Title: Thermometer
Inventor: GESCHWENDER ROBERT C
IPC: G01K5/62
Filed: 1996-03-20
Abstract: A thermometer includes a housing with a C-shaped window therein and a temperature scale adjacent to the window.  A member within the housing has a colored or shaded region with a boundary visible through the window.  The colored region is sufficiently large so that it fills the window from the lower side of the temperature scale up to the boundary.  The boundary is moved relative to the temperature scale by a bimetal coil spring.  The boundary and the colored region indicate the temperature being read by the thermometer.  In one version of the invention, the window extends in an arc of about 180°, the member is a substantially planar disk, and the colored region is a semi-circular portion of the disk.  The disk is mounted within the housing on a shaft, and the disk rotates relative to the shaft.  The thermometer is easily readable under a variety of viewing conditions, especially adverse viewing conditions.
Patent CA-2173789-A1 (CA)
Title: Cooking vessel with lid having a pourer function
Inventor: RAOULT PHILIPPE
IPC: A47J36/08
Filed: 1996-04-10
Abstract: A  cooking  vessel  has  a  handle  or  handles  for holding it and a lid having a peripheral lip resting in a substantially  sealed  manner  on an  upper  rim  of  the vessel. An inside surface of the lid includes at least one  cavity  formed between  the  peripheral  lip  and  an abutment projecting towards the interior of the vessel. The  lid moves under gravity on the upper rim of  the vessel, upon tilting of the vessel, towards a position in which the cavity is at least in part outside the upper rim of the vessel.  A passage is formed between the upper rim of the vessel and the cavity.   The abutment bears against the upper rim of  the vessel  to  limit outward displacement of the lid.
Patent CA-2176815-A1 (CA)
Inventor: COMPTON PETER M
IPC: H04B3/20
Filed: 1994-09-20
Abstract: The invention relates to methods and struc-tures for connecting circuits and circuit elements processing electrical signals having very fast tran-sition times, including sub-manosecond transition times. It includes a connecting structure (10) for connecting a multiplicity of signal lines (14A-14N) at a common point (12) to reduce unwanted reflec-tions thereat; a single or multi-conductor female connector (30) for receiving thin elements such as ribbon cable ends, printed circuit (PC) board edges (32) and the like; a structure for connecting to-gether a multiplicity of ribbon cables terminating in such multi-conductor female connectors, and a further structure (68, 70) for connecting together a multiplicity of such multi-cable connectors to obtain maximum packing thereof, and minimum conduc-tor lengths thereto, to obtain processing rates up to twenty-fold over what is available with present con-necting methods and structures.