baber/WOPTO huggingface dataset:
Patent CA-2134982-A1 (CA)
Title: Process for preparing 2,3-dimethyl-2-butene
Inventor: NOMURA KOTOHIRO
IPC: B01J31/14
Filed: 1994-03-04
Abstract: The present invention is directed to a process for preparing 2,3-dimethyl-2-butene. 2,3-Dimethyl-2-butene is prepared by isomerizing 2,3-dimethyl-1-butene using at least one acid selected from the group consisting of sulfuric acid and sulfonic acids. By this process. 2,3-dimethyl-2-butene is effectively prepared from 2,3-dimethyl-1-butene using a cheap catalyst such as sulfonic acid or the sulfonic acids. Further, a dimerization reaction product of propene can also be used in the isomerization step without removing a dimerization catalyst from the reaction product. 2,3-Dimethyl-2-butene is a compound used as a basic intermediate in the preparation of agrochemicals, medicines, perfumes, cosmetics, etc.
Patent CA-2135799-A1 (CA)
Title: Switch circuit and method therefor
Inventor: AGAHI-KESHEH DARIOUSH
IPC: H01P3/08
Filed: 1994-03-18
Abstract: A switch circuit for a cellular radiotelephone operable in a TDMA  communication scheme. The switch circuit (206) is disposed upon a plurality of tandemly-positioned ceramic substrates having transmission lines (250) disposed upon one of the ceramic substrates.  The switch circuit alternately connects transmitter circuitry (212) to an antenna (218) or receiver circuitry (224) to the antenna (218), thereby alternately to permit transmission or reception of signals generated by, or received by the radiotelephone.  Because circuits disposed upon ceramic materials are of low insertion losses, the switch circuit (206) is advantageously utilized to form a portion of the radiotelephone.
Patent CA-2135809-A1 (CA)
Title: A method for detecting a fault of an optical-fiber gyro, and an apparatus for diagnosing a fault of the same
Inventor: KUMAGAI TATSUYA
IPC: G01C25/00
Filed: 1994-11-15
Abstract: A phase-modulated light stream is propagated through an optical-fiber sensing loop, from which a propagated light stream is obtained. The propagated light stream is converted to an electric signal, from which a fundamental-wave component and even-number harmonic-wave components for the phase-modulated signal are detected. In accordance with the changes of the fundamental- and even-number harmonic-wave components, a fault is detected. On the other hand, the electric signal may be integrated to provide an integrated signal. In accordance with the comparison between the integrated signal and a fault reference voltage, the fault may be detected.
Patent CA-2139888-A1 (CA)
Title: .alpha.-pyrimidinyl acrylic acid derivatives
Inventor: EBERLE MARTIN
IPC: C07D413/12
Filed: 1995-01-10
Abstract: The invention discloses compounds of formula I                                 (I) wherein R1 is C1-4alkoxy or -NR8R9, R2 is C1-4alkyl, C1-4haloalkyl, aryl, aryloxy, C3-5alkenyloxy, C3-5alkynyloxy, halogen, aryl-C1-4alkoxy, aryloxy-C1-4alkyl, aryloxy-C1-4alkoxy, aryl-C3-5alkenyloxy, heteroaryl, heteroaryloxy, C1-4alkoxy, C3-5alkenyl, C3-5alkynyl, C1-4alkoxycarbonyl, -CONR10R11, -O-CONR10R11, -CR7=N-NR6R12, -CR7=N-O-R6 or a group   R3 is hydrogen, C1-4alkyl, C1-4alkoxy, cyano, nitro or halogen, R4 is hydrogen, halogen, C1-4alkoxy or C1-4alkyl, R5 is hydrogen or methyl, R6 is C1-12alkyl, C3-12alkenyl, C3-12alkynyl, aryl-C1-4alkyl, aryl or heteroaryl, R7 is hydrogen or methyl, R8 and R9 are independently C1-4alkyl or together C3-6alkylene, R10 and R11 are independently C1-4alkyl or together C3-6alkylene or C3-6alkylene interrupted by oxygen or sulphur, R12 is hydrogen or methyl, E is C1-3alkylene, X is CH or nitrogen, and Y is OCH3, NH2, NHCH3 or N(CH3)2;   the use of such compounds for the control of phytopathogens, composition for facilitating such use, and the preparation of the compounds of formula I.
Patent CA-2146581-A1 (CA)
Title: Synergistic effect of insulin-like growth factor-i and erythropoietin
Inventor: BROX ALAN G
IPC: A61K38/30
Filed: 1995-04-07
Abstract: Erythropoietin (EPO)  and insulin-like growth factor (IGF);  pharmaceutical   compositions   thereof   and therapeutic and prophylactic methods to increase the hematocrit  are  disclosed  herein.     increase  in hematocrit  and  reticulocyte  count  is  observed by IGF-I  treatment  alone  or  in combination  with  an other cytokine or growth factor.  Also disclosed is the  synergistic  effect  of  EPO  and  IGF-I  on hematocrit  and  reticulocyte  count,  and  the  use thereof for treating disease associated with a low erythropoietin level.
Patent CA-2147426-A1 (CA)
Inventor: LORIDON JOEL
IPC: G01N23/22
Filed: 1995-04-20
Abstract: The invention relates to a process and an apparatus for compacting binary informations, then recon-structing and processing them in delayed time or with a time lag.  It consists of compacting the binary informa-tions by posting during a given cycle informations received on several channels and then associating non-zero informa-tion sums with memory channel numbers.  It then consists solely of reconstructing the useful informations by coding them in cycle table form.          Applied to nuclear fission, this invention con-sists of delayed time processing of tables in order to determine the proportion of neutrons induced by a fission and neutrons coming from other reactions.
Patent CA-2147739-A1 (CA)
Title: Face seal with double groove arrangement
Inventor: SEDY JOSEF
IPC: F16J15/34
Filed: 1993-09-01
Abstract: 2147739 9506212 PCTABS00036 A non-contacting grooved face seal for a shaft rotating at high speed with a combination of two groove patterns (34, 44) on one of the two sealing faces of mating seal rings; one pattern being relatively deep angled grooves (34), and the other pattern being relatively shallow grooves (44). The relatively deep groove pattern (34) is optimized for hydrodynamic operation and on shaft rotation pumps the sealed fluid between the sealing faces to set the running clearance. The relatively shallow pattern (44) is designed to hydrostatically prevent a friction lock of the sealing faces when the shaft is at or near to a stationary condition.
Patent CA-2151970-A1 (CA)
Title: Storage apparatus for a storage conveyor
Inventor: MORIKIYO AKIRA
IPC: B65G35/06
Filed: 1995-06-16
Abstract: The present invention provides  a pusher  dog, which is mounted on a  driving  conveyor chain  and  normally  urged to  a  standing position,  and  which is detachably  hooked on  a truck.  The pusher dog  tilt  operation  plate is  mounted on a  storage  conveyor.  An upward urging member pushes up  the pusher dog tilt operation plate to abut a lower end  portion of  the pusher dog  in such a direction that the pusher dog is made to tilt  and is released from engagement with the  truck.  A press down  member  presses down the  pusher dog tilt operation plate against the upward urging force.
Patent CA-2153451-A1 (CA)
Title: Polyisocyanate/polyamine mixtures and their use for the production of polyurea coatings
Inventor: HICKS SHARON D
IPC: C08G18/79
Filed: 1995-07-07
Abstract: The present invention relates to a coating composition which is free from polyols and contains a) a polyisocyanate component, b) an aldimine based on the reaction product of a polyamine having 2 or more primary amino groups with an aldehyde and c) a compound containing aspartate groups, wherein components a), b) and c) are present in an amount sufficient to provide an equivalent ratio of isocyanate groups to aldimine groups and aspartate groups of 0.5:1 to 20:1 and wherein component c) is present in an amount sufficient to form a dear solution within 60 minutes of mixing components a), b) and c), provided that the amount of component c) is at least 5% by weight, based on the weight of components b) and c).             The present invention also relates to a polyurea coating . prepared from this coating composition.
Patent CA-2155105-A1 (CA)
Title: Thermoplastic compatible conveyor lubricant
Inventor: GUTZMANN TIMOTHY ALLEN
IPC: C10N40/00
Filed: 1994-01-06
Abstract: A thermoplastic compatible lubricant concentrate containing alkylpolyglycoside suitable for use in lubricating conveyor belts in the transporting of thermoplastic article of manufacture.  The hydrophobic group of the alkylpolyglycoside is a long chain alkyl group having 5 to 30 carbon atoms. The degree of polymerization of the saccharide units in the polyglycoside is less than 3.
Patent CA-2156118-A1 (CA)
Title: Traffic Marker
Inventor: BRAVERMAN JOSEF J
IPC: E01F9/646
Filed: 1995-08-15
Abstract: A traffic channelizing device has a base unit made from the sidewalls of used car or other vehicle tires, using tread portions as a stabilizer between two sidewalls, wound spirally and having an outer band with a protruding loop which results in the resilient integral base unit having a significantly reduced propensity to roll when the device is overturned. The device has the advantages of being highly resistant in wind and impact, yet being  readily removable and stackable with substantially less manpower and transportation space than for existing devices. If the central hole for the upper sidewall portion of the base unit is larger than that for the lower sidewall portion, the device retains the traffic safety feature of the base being separable from the body portion in the event of a high impact, even where the upper portion comprises more than one sidewall.
Patent CA-2157669-A1 (CA)
Title: New cephem compounds
Inventor: KAWABATA KOHJI
IPC: C07D501/00
Filed: 1994-09-08
Abstract: New cephem compounds of formula (I), wherein R1 is amino or protected amino, R2 is hydrogen, lower alkyl or hydroxy protective group, R3 is carboxy or protected carboxy, R4 is 3-pyridyl, 4-pyridyl or optionally substitued heteromonocyclic group containing two nitrogen atoms as hetero atoms, and which may also contain one oxygen or sulfur atom, and n is 0, 1 or 2, provided that when R2 is lower alkyl, then n is 1 or 2 and R4 is optionally substituted heteromonocyclic group containing two nitrogen atoms as hetero atoms, and which may also contain one oxygen or sulfur atom, and pharmaceutically acceptable salts thereof which are useful as a medicament.
Patent CA-2157786-A1 (CA)
Inventor: SCHABELREITER JOHANN
IPC: B25D17/24
Filed: 1994-03-08
Abstract: A pneumatic hammer (1) comprises a handle (3), which is provided with a housing (4) and also comprises an operating cylinder (6), which is resiliently supported within the housing (4), and a tool receptacle (5) for receiving a tool (14).        In order to ensure an effective damping of vibration in conjunction with a good guidance of the tool, the handle (3), the housing (4), and the tool receptacle (5) constitute a rigid unit of construction (2), the operating cylinder (6) is axially movably guided relative to the tool receptacle (5), and the tool receptacle (5) is provided with tool-damping means (13), which act opposite to the striking direction.
Patent CA-2160878-A1 (CA)
Title: Encapsulation of nucleic acids with conjugates that facilitate and target cellular uptake and gene expression
Inventor: MCELLIGOTT SANDRA GERTRUDE
IPC: C12N15/82
Filed: 1994-04-19
Abstract: This invention is a method for encapsulating nucleic acids linked to or co-existing with other molecules that facilitate the uptake and integration of genetic material into living cells by means of slow-release of DNA/RNA or oligonucleotides combined with cell surface ligands/proteins/transcription factors and antibodies. Compositions for use with this method are disclosed.
Patent CA-2161689-A1 (CA)
Title: Automatic toilet seat device
Inventor: VEAL BENNIE N
IPC: E03D5/10
Filed: 1994-04-29
Abstract: This invention is directed to an automatic toilet seat device which will cause a toilet seat (214) to be either raised or lowered at the push of a single button (232) and further, will automatically lower the toilet seat (214) after the flush action of the toilet (210). A first switch (232) associated with the device will, when activated, cause the toilet seat (214) to be raised by an electric motor (230). Once the toilet user has flushed the toilet (210), a float switch (240) associated with a tank (218) of the toilet (210) will cause the motor (230) to lower the toilet seat (214). The control circuit (400) controlling the automatic toilet seat device is microprocessor (410) controlled and includes an over-current detection circuit. The over-current detection circuit will detect over-current in the motor (230) when the seat (214) is completely raised or lowered such that the microprocessor (410) will stop the motor (230) from turning.
Patent CA-2163324-A1 (CA)
Title: Olefin hydration process
Inventor: ATKINS MARTIN PHILIP
IPC: C07C29/04
Filed: 1995-11-20
Abstract: This invention relates to a process for hydrating olefins to the corresponding alcohols in the vapour phase in the presence of a catalyst system comprising a heteropolyacid catalyst supported on niobia. By using niobia as support, it is possible not only to increase the space-time-yield of the process but also to prolong the life of the support thereby reducing the frequency with which the support is changed or replaced on a plant. The process is particularly suited to producing ethanol from ethylene and isopropanol from propylene.
Patent CA-2163892-A1 (CA)
Title: Foam surface cleaner
Inventor: BESSE MICHAEL
IPC: C11D3/00
Filed: 1994-03-03
Abstract: The invention is a foam stabilizing composition which is used in conjunction with alkaline detergent products to produce a foam which is capable of clinging to vertical surfaces for extended time periods without breakdown or drying and ultimately rinse freely with water. The foam composition generally comprises an alkalinity source and a vinyl polymer. The invention also comprises a method of cleaning hard surfaces using the disclosed composition.
Patent CA-2165276-A1 (CA)
Title: Conductive contact
Inventor: EMMERT STEVEN CLARK
IPC: H01R4/48
Filed: 1995-12-14
Abstract: A novel conductive contact comprises a dual beam spring (308, 310) which forms a "C" shaped spring and which is used to electrically mate to a contact on a printed circuit board. The open end of the "C" spring preferably fits over a plastic rib (404) in a housing for support. A surface mount contact (504) on the PCB has formed wings which fit into a rectangular slot in the PCB. To make electrical connection, the board is placed over the "C" spring. The "C" spring and plastic support protrude through the rectangular slot in the PCB. The conductive contact is preferably formed from a single piece of metal.
Patent CA-2165345-A1 (CA)
Title: Oligonucleotide screening assay
Inventor: NELSON NORMAN C
IPC: C12Q1/6816
Filed: 1994-07-15
Abstract: The invention features a method for assaying the ability of an oligonucleotide to form a hybrid with a target nucleic acid sequence. The featured assay comprises the following steps: (a) contacting a test sample containing a target nucleic acid sequence with an oligonucleotide; (b) treating the test sample with a duplex-altering agent; (c) contacting the treated test sample with a labeled probe under stringent hybridization conditions, wherein the probe can hybridize to non-altered target nucleic acid sequence such that the probe label is protected from subsequent chemical inactivation but the probe cannot hybridize to altered target nucleic acid sequence in a manner which would protect the probe label from subsequent chemical inactivation; and (d) measuring the hybridization of the probe to non-altered target nucleic acid sequence by measuring the amount of protected label. Also described is an assay to measure the ability of a ribozyme to cleave a target nucleic acid sequence, and an assay to measure the ability of an agent to alter nucleic acid.
Patent CA-2166460-A1 (CA)
Title: Neomorphic ibuprofen and methods of using same
Inventor: TULIANI VINOD V
IPC: C07C57/30
Filed: 1994-06-22
Abstract: A novel neomorphic form of ibuprofen, processes for preparing the ibuprofen, and method for administering the ibuprofen are provided. The neomorphic form is characterized by having a distinctively less bitter taste and causes less burning sensation upon swallowing. The neomorphic form of ibuprofen contains an amorphous ibuprofen. Tests indicate that the neomorphic form is less irritating to the gastrointestinal tract of animals upon administration.
Patent CA-2169954-A1 (CA)
Inventor: DIGIOVANNI ANTHONY P
IPC: B22F3/00
Filed: 1995-06-20
Abstract: An improved battery plate (40) and a method of making for an electric storage battery (10). The battery plate comprises a plurality of metallic fibers (50, 52) of a single or plural diameters (d, D) randomly oriented and sintered to provide a conductive battery plate with a multiplicity of pores defined therein (60). The metallic fibers are formed by cladding and drawing a plurality of metallic wires to provide a fiber tow. The fiber tow is severed and the cladding is removed to form metallic fibers. The metallic fibers are arranged into a web and sintered to form a battery plate.
Patent CA-2180586-A1 (CA)
Title: Environmentally Benign Non-Toxic Fire Flooding Agents
Inventor: MACGREGOR LORNE D
IPC: A62D1/00
Filed: 1996-07-05
Abstract: Fire flooding and extinguishing agents and detoxifiers which are environmentally safe and non-toxic in both natural form and in fire exposed degraded forms are disclosed. The flooding and streaming-type fire extinguishing agents are rich in low boiling, unsaturated halocarbon compounds having low liquid viscosities, and low boiling alkenes as detoxifying agents. The detoxifiers are conjugated double bond hydrocarbons.
Patent CA-2181204-A1 (CA)
Title: A plant promoter and an application thereof
Inventor: ISHIGE FUMIHARU
IPC: C12N5/00
Filed: 1996-07-15
Abstract: The present invention relates to a promoter functional in plant cells and plasmid that can regulate efficient expression of a gene of interest in plant cells.
Patent CA-2184145-A1 (CA)
Inventor: KANIKANTI VENKATA-RANGARAO
IPC: A61K31/44
Filed: 1996-08-26
Abstract: The invention relates to a special process for the preparation of stable, solid medicament formulations of high bioavailability and with controlled release comprising sparingly soluble active compounds and polymeric auxiliaries, and to the formulations thus prepared.
Patent CA-2186066-A1 (CA)
Title: Process for bleaching chemical pulp for paper manufacturing
Inventor: FUKUSHIMA TAKAMASA
IPC: D21C9/10
Filed: 1996-09-20
Abstract: A process for bleaching chemical pulp for paper manufacturing comprising delignifying and bleaching chemical pulp which has been treated by cooking by simultaneous use of chlorine dioxide, a peroxide, and at least one reaction catalyst selected from the group consisting of oxoacids of elements of Groups IV, V and VI and salts of these acids.      Formation of organic chlorine compounds as by-products is suppressed by decreasing the amount of chlorine dioxide used in the ECF bleaching process in the first stage, and thus environmental toxicity in the waste water discharged from the bleaching process is decreased. Chemical pulp having a high degree of brightness is economically produced because increase in the production capacity is not required at all or suppressed to the minimum, and the investment cost is reduced to the minimum when the bleaching with chlorine in the first stage is converted into the bleaching with chlorine dioxide which is an ECF bleaching process.
Patent CA-2187347-A1 (CA)
Title: Improved manifold assembly for thermoplastic pipe production
Inventor: WISE JOHN
IPC: B29C48/90
Filed: 1995-04-07
Abstract: An improved manifold assembly for use with a die (15) in the extrusion of plastic comprises a water inlet tube (100); a vacuum tube (135, 140) through which a vacuum is pulled; a water return tube (125, 130); a calibration finger first section (25) having an outer surface (27), at least one water receiving channel (70) connected to the water inlet tube (100) and a vacuum channel (68, 72) connected to the vacuum tube (135, 140), and having the water return tube (130) positioned centrally of the first section outer surface (27) with the first section (25) having formed therein apertures (35, 39) connected to the vacuum channel (72); and a calibration finger second section (26) having an outer surface (86) and an interior channel (84), with the second section (26) having the water return tube (130) positioned centrally of the second section outer surface (86) and apertures (88) formed therein and connected to the interior channel (84).
Patent CA-2188251-A1 (CA)
Inventor: TANAKA HIROSHI
IPC: H05B3/12
Filed: 1996-03-25
Abstract: A heating device (1) according to the present invention includes a substrate (2) made of a heat-resistant insulating material, a heating resistor layer (3) formed on the substrate (2), and a protective layer (6) formed on the substrate (2) to cover the heating resistor layer (3). The protective layer (6) is formed of glass to which alumina powder having a grain size of no greater than 5 µm is added. The addition proportion of alumina powder is 3-30Wt%, preferably 3-22Wt% and particularly 10-22Wt%.      The addition of alumina powder remarkably increases the dielectric strength of the protective layer (6).
Patent CA-2193756-A1 (CA)
Inventor: KAWAHARA YUJI
IPC: B41J2/04
Filed: 1996-12-23
Abstract: A method includes ink jet printing a dot-matrix pattern of a first one of an image on a recording medium; and ink jet printing a dot matrix pattern of a second one of the image on the recording medium which second one of the image is interlaced with the first one of the image such that a combination of the dot-matrix patterns of the first and second ones of the image result in a combined dot-matrix pattern of the image having a dot density which is greater than an individual dot density of the dot-matrix patterns of the first and second ones of the image
Patent CA-2196880-A1 (CA)
Title: Nervonic acid compositions
Inventor: COUPLAND KEITH
IPC: A23L33/15
Filed: 1995-08-21
Abstract: A baby or infant composition is provided which comprises one or more nutrient materials and, as a supplement, nervonic acid or a functional derivative thereof or an immediate biochemical precursor of either nervonic acid or a functional derivative thereof, in a physiologically acceptable form. It has been found to be beneficial to administer such a composition to preterm babies and term babies and infants. It has also been to be beneficial to administer nervonic acid or a functional derivative thereof or an immediate biochemical precursor of either nervonic acid or a functional derivative thereof to adults having normal levels of nervonic acid in their body and, in particular, to women who intend to become pregnant, pregnant women and lactating women.
Patent CA-2198206-A1 (CA)
Inventor: LI HAODONG
IPC: G01N33/68
Filed: 1995-06-06
Abstract: Polypeptides de type chémokine bêta 9 (Ck.beta.-9) humaine et ADN (ARN) codant lesdits polypeptides, ainsi que procédé de production desdits polypeptides par des techniques de recombinaison. Des procédés d'utilisation desdits polypeptides Ck.beta.-9 dans le traitement de la leucémie, des tumeurs, des infections chroniques, des maladies auto-immunes, des fibroses, de la cicatrisation et du psoriasis sont également décrits. Des antagonistes desdits polypeptides et leur utilisation en tant qu'agents thérapeutiques pour traiter la polyarthrite chronique évolutive, les inflammations auto-immunes et chroniques et les maladies infectieuses, les réactions allergiques, la fièvre indépendante des prostaglandines et l'insuffisance médullaire sont encore décrits. La présente invention concerne en outre des analyses diagnostiques permettant de détecter la présence de mutations dans la séquence de codage de Ck.beta.-9 et la surexpression de la protéine Ck.beta.-9.
Patent CA-2199039-A1 (CA)
Title: A rock drill bit and cutting inserts
Inventor: FISCHER UDO
IPC: E21B10/56
Filed: 1995-10-04
Abstract: The present invention relates to a cutting insert for a rock drill bit. The rock drill bit includes a tool body (10) having a front surface (13), and a number of cutting inserts (14), each having a generally cylindrical shank portion.     The cutting insert (14) is provided with increased volume portions in its parts being most subjected to wear. The invention also relates to the rock drill bit.