baber/WOPTO huggingface dataset:
Patent CA-2163325-A1 (CA)
Title: Amine compounds, their production and use
Inventor: KATO KANEYOSHI
IPC: C07D265/34
Filed: 1995-11-20
Abstract: A compound of the formula:                    (I) wherein Ar1 and Ar2 independently present an optionally substituted aromatic group; P and Q independently represent a divalent aliphatic hydro-carbon group having at least 2 carbon atoms and optionally having ether oxygen or sulfur in the carbon chain; R1 and R3 independently represent -CO-R, -CONH-R (R represents a hydrocarbon group or a heterocyclic group) or a hydrocarbon group; R2 and R4 independently represent hydrogen or an alkyl group; R2 and R4 independently represent hydrogen or an alkyl group; R1 and R2 or R3 and R4, taken together with the adjacent nitrogen atom, may form a nitrogen-containing heterocyclic group; and j represents 0 or 1, or a salt thereof have excellent GnRH-receptor antagonizing activity and is useful as a prophylactic and therapeutic agent for hormone-dependent and other diseases.
Patent CA-2164323-A1 (CA)
Title: Temperature Compensated Variable Gain Amplifier
Inventor: KORNFELD RICHARD L
IPC: H03G1/04
Filed: 1994-06-03
Abstract: An amplifier for a radio transceiver overcomes the problem of gain being dependent on ambient temperature. Transmission power is matched to strength of a received signal by providing matched dual gate FET amplifier stages in both the transmitter and receiver portions of the transceiver. Changes in gain due to temperature are compensated for by detecting changes in the FET drain current by measuring the source voltage of the amplifier. The FET source voltage is compared to a reference voltage, and the output signal resulting from the comparison is provided as a control signal to one of the FET gates.
Patent CA-2166211-A1 (CA)
Title: Mechanical transfer ceramic panel
Inventor: HUDSON THOMAS C JR
IPC: F04D29/42
Filed: 1994-06-27
Abstract: A wear and shock resistant ceramic-cored composite panel (11) for use in equipment exposed to heavy abrasive materials comprising a plurality of commensurately shaped generally planar layers. The layers are comprised of and sequentially arranged in the following order-a ceramic layer (12); a first fiberglass reinforced plastic composite layer (13); a resilient core layer for absorbing impact energy imparted indirectly thereto by the heavy abrasive materials (14); and a second fiberglass reinforced plastic composite layer (16), wherein the layers are consecutively bonded together in the order set out above by an adhesive, then secured to various sites of wear inside equipment by known types of attachment or utilized as structural members themselves.
Patent CA-2169115-A1 (CA)
Title: 1-¬2-(substituted vinyl)|-5h-2,3-benzodiazepine derivatives
Inventor: VAGO PAL
IPC: A61K31/551
Filed: 1996-02-08
Abstract: This invention relates to new 1-[2-(substituted vinyl)]-5H-2,3-benzodiazepine derivatives, a process for the preparation thereof, pharmaceutical compositions comprising the same, to the use of the said benzodiazepine derivatives for the treatment of diseases and for the preparation of pharmaceutical compositions suitable for the treatment of diseases.     The compounds according to the invention correspond to the general formula (I), (I)   wherein A and B together form a =C=N- or =CH-NH- group; R1 represents phenyl optionally carrying 2 or 3 hydroxy groups or 1 to 3 identical or different substituent(s) selected from the group consisting of halogen, trifluoromethyl, nitro, cyano, amino C1-3 alkylamino, di-(C1-3 alkyl)-amino, C1-4 alkanoylamino, C1-4 alkyl, C1-4 alkoxy, carboxy, (C1-4 alkoxy)-carbonyl, C1-C4 alkoxycarbonyloxy and methylenedioxy; naphthyl optionally carrying a substituent selected from the group consisting of hydroxy, C1-4 alkoxy and C1-4 acyloxy; furyl, thienyl or indolyl; R2 stands for hydrogen or C1-4 alkyl; R3 and R4 are independently C1-4 alkoxy attached to positions 7 and 8 of the benzodiazepine ring, or R3 and R4 together form a 7,8- or 8,9-methylenedioxy group, and possess valuable central nervous activities.
Patent CA-2172230-A1 (CA)
Inventor: D AMORE MICHEL
IPC: B21D51/26
Filed: 1996-03-20
Abstract: L'invention a pour objet un procédé de fabrication d'une boîte métallique de forme comprenant, d'une part, un fond (1) et une jupe périphérique (2) comportant une succession de zones de différents diamètres et, d'autre part, un couvercle serti sur la jupe périphérique (2). Le procédé consiste à réaliser, à partir d'un flan métallique, une ébauche cylindrique constituée d'un fond et d'une jupe périphérique de diamètre égal au diamètre D de la zone (2A) de la jupe périphérique (2) de la boîte, à effectuer une opération de rétreint de la partie de la jupe périphérique de l'ébauche située au-dessus de la zone (2A) de diamètre D de la jupe périphérique (2) de la boîte formée pour l'amener à un diamètre D1 déterminé inférieur au diamètre D et à effectuer au moins une opération d'expansion de la partie de la jupe périphérique située au-dessus de la zone (2A) de diamètre D.
Patent CA-2173863-A1 (CA)
Title: 16-substituted-4-aza-androstane 5-alpha-reductase isozyme 1 inhibitors
Inventor: DURETTE PHILIPPE L
IPC: A61P17/14
Filed: 1994-10-21
Abstract: Compounds of formula (I) are inhibitors of the 5.alpha.-reductase 1 isozyme, and are useful alone, or in combination with a 5.alpha.-reductase 2 inhibitor. for the treatment of androgenic sensitive disorders such as acne vulgaris, seborrhea, female hirsutism, male pattern baldness, and benign prostatic hyperplasia.
Patent CA-2175418-A1 (CA)
Inventor: COOPER ROBERT
IPC: B60R21/215
Filed: 1996-04-30
Abstract: A closure for an air bag assembly includes a flexible outer skin and a layer of foam material covering a retainer member that has an air bag deployment opening that is closed by a moveable door. The door overlaps portions of the retainer member to support the door against movement inwardly of the retainer member and allow free hinging movement outwardly of the retainer member for stressing and separating the layer of foam and the outer skin to form a deployment path for the air bag. The moveable door may be retained in the closed position by frangible portions of the retainer member to facilitate manufacture of the closure.
Patent CA-2175938-A1 (CA)
Inventor: WIEBE JOHN S
IPC: E03D9/05
Filed: 1996-05-07
Abstract: An odour extracting system for a conventional toilet comprising an exhaust blower, a toilet adaptor, and an air extraction duct wherein the toilet adaptor is located between the tank and toilet bowl and comprises an air extraction conduit and a flush water conduit. The air extraction conduit has a first end in communication with the flush water conduit and a second end for attachment to an air extraction duct which is further connected to an exhaust blower. The exhaust blower continuously draws malodorous air from the toilet bowl through a plurality of flush water outlet holes located therein, through the air extraction conduit and the air extraction duct, while the toilet is in an unflushed state. When the toilet is flushed, water from the tank of the toilet pours through the flush water conduit of the toilet adaptor. The orientation of the air extraction duct coupled with the location of the exhaust blower aid in preventing water which is drawn into the air extraction duct by the exhaust blower, from passing along the air extraction duct and coming into contact with the exhaust blower.
Patent CA-2178781-A1 (CA)
Title: Method and equipment for coding and decoding a digital image
Inventor: SANNINO ROBERTO
IPC: H04N19/94
Filed: 1996-06-11
Abstract: The invention relates to fixed or sequenced image processing and more particularly to a method and to the equipment for coding and decoding a digital image throughvector quantization based upon fractal concepts. Through the invented method it is possible to reconstruct the original image without any iteration. This is feasible since the coding does not start from anyimage but from one known to the decoder and hence having a shorter distance from the original image than any other image.
Patent CA-2180025-A1 (CA)
Inventor: GOLDSTEIN ANDREW S
IPC: G01N33/53
Filed: 1994-08-09
Abstract: A method for collecting immunoglobulins and other analytes from the oral cavity for immunological and other testing. An absorbent pad is used to collect a specimen having a high concentration of immunoglobulins or other analytes. The specimen can be subjected to a basic immunological testing technique which can be used as a tool for screening a patient for diseases.
Patent CA-2180293-A1 (CA)
Inventor: GAGOS ALEXANDRE
IPC: E04C3/292
Filed: 1996-07-02
Abstract: A structural member suitable for use as a joist or beam formed from two continuous very rigid galvanized steel flanges.  (3) role formed with a mainly omega shape cross section, a longitudinal extending opening, in the channel defines a socket (7) for reception of a continuous solid web (2) formed, from plywood or other suitable structural material. This web is mounted the entire length of the galvanized steel flanges, both top and bottom flanges are fastened to the web. The result is a continuous monolithic composite structural member.
Patent CA-2180719-A1 (CA)
Title: Rejuvenative catalytic oxidation of waste water, particularly for removal of cyanide and sulfur compounds
Inventor: YAN TSOUNG YUAN
IPC: C02F1/72
Filed: 1995-02-21
Abstract: A process for the rejuvenative catalytic oxidation of offensive substances, such as cyanides, sulfides, sulfites, thiosulfates, mercaptans, disulfides, ammonia and mixtures thereof, contained in waste water is provided. The process comprises adding to the waste water a low concentration of a metal compound and then passing the treated waste water along with a source of oxygen over an adsorbent material to catalytically oxidize the offensive substances contained in the waste water. The process reduces the catalytic impact of the loss of metal from the adsorbent material due to leaching and allows the catalyst to be rejuvenated and allows recovery from process upsets in the treating system without unit shutdown and catalyst replacement. An example of the catalytic support is activated carbon and an example of the metal is copper.
Patent CA-2184300-A1 (CA)
Inventor: BENT PAUL HENRY
IPC: F04D29/66
Filed: 1996-08-28
Abstract: An air moving device such as an axial cooling fan comprises a fan housing, a rotatable shaft assembly supported by the fan housing, and a plurality of fan blades coupled to the rotatable shaft assembly, each of the fan blades having a blade tip in close proximity to the fan housing. In accordance with the invention, at least one of the fan blades has a flange located at the blade tip thereof and integrated therewith. By reducing the air flow through the gap between the blade tip and the fan housing, the flanges result in the aeroacoustic noise generated by the fan being advantageously reduced. In one illustrative embodiment, the flanges are substantially perpendicular to the fan blade and extend in both substantially perpendicular directions therefrom. The flanges may consist of a separately manufactured component which has been physically attached to a (separately manufactured) fan blade, or the fan blade and the flange may be parts of a single integrally manufactured component.
Patent CA-2189468-A1 (CA)
Inventor: VEZINA JEAN A
IPC: G21K1/10
Filed: 1996-11-01
Abstract: The device is used for compensating a hyper transparency area due to air inside or outside an organ or any other object while using a gantry mounting radiography apparatus.  The device comprises  a  three-dimensional  compensating  filter  and  a supporting assembly for connecting the filter in front of the X-ray source. The filter extends in a filter plane while the organ, or the object, defines a reference plane in which the rotation axis of the arms of the apparatus is substantially lying. The supporting assembly is designed to keep the filter in front of the X-ray source and in registered position with the X-ray source and the hyper transparency area while keeping the  filter plane  parallel  to  the  reference  plane  during rotation of the arms around their axis. Contrary to existing X-ray compensating devices which are stationary, the present invention  automatically  sets  itself  for  radiography  of different views in function of the rotation of the arms of the apparatus.
Patent CA-2192777-A1 (CA)
Inventor: JENKINS CARLTON G
IPC: H01M4/70
Filed: 1996-12-12
Abstract: A perforated substrate having half of the perforations formed from one major surface of the substrate and the other half formed from the opposite major surface, the two major surface being coplanar is described.  This introduces equal and opposite stress forces into the substrate which essentially cancel each other and provide a product meeting exacting planarity requirements.
Patent CA-2192868-A1 (CA)
Title: Coating medium, a method of producing multi-layer coatings and the use of the coating medium
Inventor: BECKER HEINZ DIETHOLF
IPC: C08F283/01
Filed: 1996-12-13
Abstract: This invention relates to coating media based on one or more styrene-free, unsaturated polyester resins, which contain A)   one or more unsaturated polyesters obtainable by the reaction of a) 0.5 to 1.0 mole of at least one alpha,beta-ethylenically unsaturated dicarboxylic acid or the anhydride thereof, b) 0 to 0.5 mole of at least one aromatic, aliphatic and/or cycloaliphatic saturated dicarboxylic acid or the anhydride thereof, c) 0.4 to 0.8 mole of at least one aliphatic saturated dihydric alcohol, d) 0.5 to 1.2 mole of at least one hydroxy-functional allyl ether, B)   one or more polyglycol diacrylates of general formula   where n = 2 - 5 and m = 2 - 5, C)   one or more initiators, and optionally one or more organic solvents, one or more pigments and/or extenders, as well as accelerators, catalysts and/or customary lacquer additives.
Patent CA-2195331-A1 (CA)
Inventor: BOTTEN BAARD
IPC: B02C23/08
Filed: 1995-07-19
Abstract: Procédé et dispositif de séparation de substances dures de substances moins dures dans une masse compacte (1) composée de substances dures et de substances moins dures. Il s'agit, par exemple, de séparer le magnésium ou l'aluminium des crasses ou déchets renfermant du magnésium ou de l'aluminium. On dirige sur la masse (1) au moins un jet de fluide sous une pression de 400 bar au moins, afin de séparer par morcellement les substances dures des substances moins dures, les buses (11) et la masse (1) étant déplacées les unes par rapport aux autres, et les substances étant refroidies avec de l'eau afin de réduire les pertes de métal dues à l'oxydation.
Patent CA-2195831-A1 (CA)
Title: Phthalimide compound and herbicide containing the same
Inventor: NATSUME BUNJI
IPC: A01N43/08
Filed: 1997-01-23
Abstract: This invention relates to a novel phthalimide compound represented by formula:                (see fig. I) and a herbicide containing the same as an active ingredient.          The compound of the present invention exhibit powerful herbicidal actions while securing sufficient safety to several important crops and are therefore useful as a herbicide.
Patent CA-2197072-A1 (CA)
Title: Method for the catalytic conversion of nitrogen oxides present in the exhaust gas of an internal-combustion engine
Inventor: NEUFERT RONALD
IPC: B01D53/94
Filed: 1995-05-16
Abstract: In the catalytic reaction of nitrogen oxides contained in the exhaust gases from an internal-combustion engine operated with an excess of air, a reducing agent must be supplied for the catalytic reaction to take place. This metered addition of reducing agent must be adaptable to the rapidly changing operating conditions in the engine. Up to now, there has been no satisfactory solution to this problem. The invention proposes a method in which the reducing agent is added, in quantities which are greater than stoichiometric with respect to the nitrogen oxide concentration, during the engine-starting phase and during operation at a falling and optionally at essentially constant exhaust-gas temperatures, taking into consideration the temperature-dependent capacity of the denitrogenation catalyst to store reducing agent, the reducing agent being otherwise added in less than stoichiometric quantities. In this way, the catalyst is kept at the preferred level at all times in order to ensure that sufficient stored reducing agent is available for the catalytic reaction and also to provide a reducing-agent buffer, thus avoiding a shortage of reducing agent. The invention is applicable to all internal-combustion engines operated with an excess of air, such as diesel engines and lean-mixtures engines.
Patent CA-2198071-A1 (CA)
Inventor: CHIU CHUN-MU
IPC: A45B11/00
Filed: 1997-02-20
Abstract: A composite fishing kit includes a partitioned tray for holding various fishing tackles and tools, a foldable chair which can be adjusted to different heights and has an adjustable bar engageable with an umbrella and a storing bag for holding the tray and the folded chair therein. The tray further has rod support racks for holding the fishing rods. A fisherman can rest on the chair under the umbrella while fishing. The kit may be packed in a small size to facilitate carrying or storage.
Patent CA-2199316-A1 (CA)
Title: Adjustable height tables
Inventor: HELLWIG JOHN
IPC: A47B9/14
Filed: 1997-03-06
Abstract: A height adjustable work table comprises a work surface and at least three adjustable leg arrangements supporting said work surface. Each leg arrangement comprises a curved leg supported in a leg bracket attached beneath the work surface. Each leg bracket is an open channel having predetermined support positions for engaging the curved leg with fasteners for releasably securing the leg in any of the support positions.beta.
Patent CA-2199848-A1 (CA)
Title: Optical 1xn and nxn switching matrix having a tree structure
Inventor: STOLL LOTHAR
IPC: H04B10/27
Filed: 1995-09-13
Abstract: 1. Optical 1×N and N×N switching matrix having a tree structure.   2.1 In the case of 1×N switching matrices having a tree structure, in which an optical input (1 0) is con-nected to N outputs (1 1) by means of an optical waveguide structure (1) which branches like a tree, and in which an optical changeover switch (4) is arranged in each junc-tion point (3) of the waveguide structure, it is intended to improve the crosstalk suppression.   2.2 To this end, in each case one gate switch (5) is assigned to each output (1 1) for optional release and blocking of this output (1 1) as a function of a switching state of the changeover switch (4) of a junction point (3) from which a branching waveguide (11) is connected to this output (1 1). An N×N switching matrix, which is also described, having greatly improved crosstalk suppression can be obtained with such 1×N switching matrices.   2.3 For use in optical communications networks, for example telecommunications networks.   3. Figure 1
Patent CA-2201893-A1 (CA)
Title: Process for the efficient preparation of n-substituted dehydroamino acid esters
Inventor: NUGENT WILLIAM ALOYSIUS
IPC: C07C233/47
Filed: 1995-11-01
Abstract: A process for the preparation of N-substituted dehydroamino acid esters by contacting a .beta.-hydroxy-.alpha.-amino acid ester or N- or O-substituted .beta.-hydroxy-.alpha.-amino acid ester with an excess of acetic anhydride and a base is disclosed.
Patent CA-2202717-A1 (CA)
Title: Cigarette or tobacco package with re-usable aroma releasent for multiple package openings
IPC: A24F15/18
Filed: 1997-04-15
Abstract: Process for the preparation of low-salt liquid dyestuff preparations, characterized in that they are obtained by: a) diazotization of an aromatic amine, b) 2-fold coupling of the diazo component obtained according to a) to I-acid-urea, in the presence of an inorganic base and in the absence of an organic base, c) desalination and, if appropriate, concentration by means of a pressure permeation of the reaction mixture obtained according to b), so that an inorganic salt content of less than 1% by weight is achieved.
Patent CA-2203248-A1 (CA)
Inventor: BARRON JOSEPH E
IPC: H04Q11/04
Filed: 1996-06-13
Abstract: A subscriber line circuit test arrangement for a non-metallic (fiber optic) digital communication path-based digital communication network that employs a single (basic rate ISDN) metallic channel unit (BMCU) installed at a site terminating the fiber optic communication path. A BMCU communicates with a central office test system using an auxiliary B-ISDN communication 'test' channel portion (2B+D) of the time division multiplexed digital communication DS0 channels. Digital command and response signals are transported by the two ISDN bearer (B) channels and are coupled directly to tip and ring digital signal processors in the central office test system. The data (D) channel is employed to conduct access, calibration and control communications with the metallic channel unit.
Patent CA-2204891-A1 (CA)
Title: Absorbent material
Inventor: PALUMBO GIANFRANCO
IPC: A61L15/60
Filed: 1995-11-13
Abstract: The invention provides a superabsorbent material which comprises a combination of (1) a cationic superabsorbent in which from 20 to 100 % of the functional groups are in basic form, and (2) a cationic exchanger in which from 50 to 100 % of the functional groups are in acid form. The combination is particularly effective as a superabsorbent for electrolyte containing solutions such as menses and urine.
Patent CA-2207877-A1 (CA)
Inventor: HAYAFUCHI YOSHIRO
IPC: G03C1/16
Filed: 1997-06-17
Abstract: Disclosed is a silver halide photographic material comprising a base and at least one silver halide emulsion layer formed on the base, characterized in that the silver chloride content of silver halide grains constituting the silver halide emulsion layer is 95 mole % or above, that the silver halide emulsion is spectrally sensitized by specific sensitizing dye, and that the silver halide emulsion layer contains a yellow coupler, a magenta coupler and a cyan coupler; and an image-forming process characterized by developing the silver halide photographic material with a color developer substantially free from benzyl alcohol.
Patent CA-2208702-A1 (CA)
Title: Aerodynamically stable roof system and ballast blocks
Inventor: REPASKY JOHN
IPC: E04D3/00
Filed: 1994-12-29
Abstract: A protected-membrane roof paving system (10) and blocks (12) for use therein. Rectangular ballast blocks (12) are laid in rows. The blocks (12) have channels providing for drainage and equalization of air pressure above and below the blocks (12) under adverse wind conditions.
Patent CA-2217690-A1 (CA)
Title: A method and an apparatus for analysing a material
Inventor: PIDCOCK ANDREA GABRIELLE
IPC: G01N23/12
Filed: 1996-04-04
Abstract: A method and an apparatus for analysing a material, such as coal and iron ore, particularly with a view to identifying contaminants, is disclosed. The method and apparatus are based on the use of multiple (particularly dual) energy xray analysis with x-rays at different photon energies. X-rays are transmitted through a material and the detected x-rays are processed to produce an image of the material that combines together the separate images produced by the different photon energy x-rays. The combined image has enhanced contrast which minimises the affects of non-compositional factors that otherwise would affect identifying constituents of the material.
Patent CA-2219366-A1 (CA)
Title: Method and apparatus for indicating to a wireless network the operational mode of a wireless communicator
Inventor: LEUCA ILEANA A
IPC: H04W4/12
Filed: 1996-12-04
Abstract: A method for communicating on a wireless network includes receiving a mode signal from a network node. The mode signal represents an operational mode of the network node. The operational mode is defined by selecting from among a plurality of services at least one service whose reception over the wireless network is to be suspended or reinstated. Communication between the network node and the wireless network is subsequently conducted by taking into account the received mode signal. The network node may be a wireless communicator such as a cellular telephone or a fixed station device. Alternatively, the network node may be a wireless switch or a cellular base station.