baber/WOPTO huggingface dataset:
Patent CA-2048814-A1 (CA)
Inventor: SATO TAKASHI
IPC: H01T13/02
Filed: 1991-08-08
Abstract: An ignition system has a series-gap discharge-bulb through which a high voltage is supplied to a center electrode of an ignition plug.  A short-circuit element is made of a material that reversibly deforms when it is heated to a predetermined temperature when an engine is operated in a steady state.  The short-circuit element is electrically connected to the plug such that two discharging electrodes are short-circuited by the short-circuit element when the short-circuit element is heated to thermally deform.  The discharging electrodes may be made of a reversibly deformable material so that the electrodes deform into contact with each other when they are heated to a predetermined temperature.
Patent CA-2053311-A1 (CA)
Inventor: WILLIAMS DAVID ALLEN
IPC: G01C19/00
Filed: 1990-04-20
Abstract: The invention provides an apparatus for measuring the yaw rate of a vehicle, comprising means for measuring the velocity of the vehicle (1), means for measuring the lateral acceleration of the vehicle (2) and means for measuring the steering angle of the vehicle (3), correction means (4) and a yaw gyrometer (5). The correction means (4) acts to remove bias errors from the output of the yaw gyrometer (5). The correction means (4) estimates the bias errors when the velocity of the vehicle is zero (or within a tolerance of zero) or when both the steering angle of the vehicle is zero (or within a tolerance of zero) and the lateral acceleration of the vehicle (or within a tolerance of zero).
Patent CA-2053660-A1 (CA)
Inventor: HARRY EDWARD G
IPC: B60D1/07
Filed: 1991-10-17
Abstract: BALL HITCH ASSEMBLY              Abstract of the Disclosure A ball hitch assembly consisting of: a center pin mountable on a tow bar and having an axial extent; a hitch ball with a central opening mountable on the center pin;  a cooperating  locking pin  and groove  structure provided one on the center pin and the other on the hitch ball, with the groove having an entryway through which the locking pin can pass as the center pin is directed into the hitch ball central opening, with the locking pin being movable within the groove to allow the hitch ball to be placed in an operative position on the center pin; and  locking  structure  defined  cooperatively  by  the locking pin and groove for preventing the hitch ball in its operative position from being disassembled from the center pin  by drawing the hitch ball  in  one  axial direction and turning the hitch ball in either direction of rotation about the axis of the center pin.
Patent CA-2060367-A1 (CA)
Title: High performance capillary gel electrophoresis
Inventor: KARGER BARRY L
IPC: G01N27/447
Filed: 1992-01-30
Abstract: ABSTRACT    An  improved,  highly  stable  capillary column used  in  high performance capillary electrophoresis and method of preparing the same.  The improved capillary column can significantly reduce the effects of electroosmosis during electrophoresis,  is stable for reuse,  and enables  operation  of  the  capillary column  in  high electric  fields,  resulting  in high  resolution separations  in a minimum  amount  of  time.   The  improved  column  comprises  a capillary  having a  highly  stable,  coating matrix on the  inner surface of the capillary wall.  The highly stable coating matrix includes  an  intermediate  layer  hydrophobic  phase  chemically bonded to the inner wall of the capillary, a detergent which is physically adsorbed to the hydrophobic phase,  and a polymerized monomer  which  is  covalently  bonded  to  the  adsorbed  detergent thereby forming a hydrophilic outer layer of the coating matrix.
Patent CA-2060746-A1 (CA)
Title: Manufacture of calcium hydrosilicate bound fiberboard
Inventor: SAGSTETTER ROBERT
IPC: C07K9/00
Filed: 1992-02-05
Abstract: Calcium hydrosilicate bound fiberboard, in particular double-deck board, is manufac-tured in a process wherein a fiber-binder-filler mixture having a water content of 40 to 45 % by weight and a solids content of 55 to 60 % by weight is prepared by digesting cellulose fibers in an amount of from 2 to 12 % by weight of the solids content with water and   mixing them with the  binder  comprising  cement  and/or  lime hydrate  and  substances  containing  reactive  calcium silicates and also the fillers to form a thick pasty mixture, whereupon the thick pasty mixture is introduced in a predetermined amount into the frame of a bottom mold of a single-shot press which further includes a top mold, essentially leveled out, formed by closing top and bottom mold, and, via dewatering fabrics and channels in the top and  bottom  molds,  dewatered,  compacted  and  vented, whereupon the raw board thus  formed is demolded and autoclaved.
Patent CA-2061042-A1 (CA)
Title: Polyamine compositions containing secondary amine functions
Inventor: OHSHIMA TOSHIYUKI
IPC: C07C227/08
Filed: 1992-02-11
Abstract: ABSTRACT OF THE DISCLOSURE       Polyoxyalkylene polyamine or aromatic diamines or xylylenediamines are modified by subjecting to the Michael reaction with an ethylenically unsaturated monomer having an  electron-withdrawing  group  to  convert  the  primarary amino groups at least in part to a secondary amino group of the formula:        -NH-CH2-CH(R)-Y wherein  R  is  a  hydrogen  atom  or  methyl,  and Y  is an electron-withdrawing group.  The modified amines find use in the manufacture of plastics such as polyurea elastomers or polyurea RIM.
Patent CA-2061886-A1 (CA)
Title: Daytime running lights convenience feature
Inventor: IRICK W THOMAS
IPC: B60Q1/14
Filed: 1992-02-26
Abstract: DAYTIME RUNNING LIGHTS CONVENIENCE FEATURE      ABSTRACT OF THE DISCLOSURE A convenience feature  is added to a DRL circuit to enable the driver to temporarily override the DRL system in situations where it is appropriate, such as when the vehicle is  approaching  weigh  scales  or  entering  a  tunnel.  The convenience feature is  embodied  in a convenience circuit that  is  interposed  in  the current  feed path to  the DRL circuit.  The  convenience  circuit  comprises  a  momentary switch that is actuated by the driver and a timing relay module that is responsive to the actuation of the momentary switch.
Patent CA-2064411-A1 (CA)
Title: Tinctorial composition for keratinic fibers containing oxydation color precursors and hydroxybenzene furan used as couplers and coloring process using such composition
Inventor: TULOUP REMY
IPC: A61K8/40
Filed: 1992-03-30
Abstract: The invention relates to the use, as coupler in a dyeing composition, of a hydroxybenzofuran of formula (I):   <IMAGE> (I)  in which R1 and R2, which are identical or different, represent a hydrogen atom or a C1-C6 alkyl radical. When they denote an alkyl radical, R1 and R2 can occupy any position on the benzofuran ring except the positions 2 and 3 at the same time. The OH group may occupy one of the positions 4, 5, 6 or 7, in combination with one or more para type or ortho type oxidation dye precursors or mixtures thereof, for dyeing keratinous fibers and in particular human hair. The dyeing composition according to the invention makes it possible to confer on the keratinous fibers a color which is fast to light, washes, adverse weather conditions and perspiration.
Patent CA-2065231-A1 (CA)
Title: Clay-free, asbestos-free and glass microbubble-free joint compounds
Inventor: ATTARD PETER M
IPC: C04B26/04
Filed: 1991-07-22
Abstract: A clay-free, asbestos-free and glass microbubble-free joint compound containing an in-situ or associative thickener as a substitute for asbestos and any clay substitute therefor. In particular, these joint compounds contain no attapulgus clay thereby improving viscosity stability, crack resistance and shrinkage.  The preferred in-situ thickener are acidic acrylate copolymers.  It has been found that the in-situ thickeners should be used in combination with the normal cellulosic thickeners used in joint compounds instead of as replacements therefor.  The joint compounds contain the usual fillers and latex emulsion binders, with at least about 50% by weight of the filler being selected from the group consisting of calcium carbonate, calcium sulfate dihydrate and calcium sulfate hemihydrate.
Patent CA-2069588-A1 (CA)
Title: Eimeria maxima dna probes
Inventor: CHAKRABORTY PRASANTA R
IPC: C12N15/09
Filed: 1992-05-26
Abstract: TTTLE OF THE INVENTION            EIMERIA MAXIMA DNA PROBES            ABSTRACT OF THE INVENTION          Unique species-specific Eimeria maxima DNA probes comprising divergent DNA sequences are disclosed. The probes are complementary to a small subunit ribosomal RNA gene of Eimeria maxima.
Patent CA-2071474-A1 (CA)
Title: Phthalocyanine compounds and usage thereof
Inventor: ITOH HISATO
IPC: C09B47/067
Filed: 1992-06-17
Abstract: ABSTRACT OF THE DISCLOSURE   Phthalocyanine compounds represented by the below-described formula are suitable for use in the fabrication of color filters.                               wherein R1, R4, R5, R8, R9, R12, R13 and R16 represent a group represented by the below-described formula, H or a halogen atom, R2, R3, R6, R7, R10, R11, R14 and R15 represent an alkyl, alkoxyl, alkylthio, alkylamino, dialkylamino or aryloxyl, arylthio group or -COORl7, R17 being a particular monovalent group, H or a halogen atom; and Met represents a metal atom.                 wherein X and Z represent 0 or S, R18, R19 and R20 represent H or an alkyl group, A, B and D represent a connecting group, n and ? is an integer of 0-10, m, q, t, u, r and w are an integer of 0-2, and p is 0 or 1.
Patent CA-2074649-A1 (CA)
Title: Disposable absorbent articles
Inventor: BASTIOLI CATIA
IPC: C08L67/04
Filed: 1992-07-24
Abstract: ABSTRACT           An absorbent article, such as diapers and the like, comprises a liquid pervious topsheet, a liquid impervious backsheet joined with said topsheet and an absorbent core positioned between said topsheet and said backsheet, said backsheet comprising a flexible starch based film compri-ing starch, a synthetic thermoplastic polymer of at least one ethylenically insaturated monomer, said polymer having repeating units provided with at least a polar group, wherein the starch and the polymer form an at least partially interpenetrated network, and moisture.
Patent CA-2077401-A1 (CA)
Inventor: GRIMALDI THOMAS J
IPC: F41G1/467
Filed: 1992-09-02
Abstract: An eye shield (20) for a bow includes a horizontally-elongated plate-like member (51) operatively mounted on the bow, and preferably to a sight (32) mounted thereon. The member extends toward the head of a person aiming the bow, and, if projected rearwardly, would intersect such person at a point between his eyes. The sight is so dimensioned configured and arranged as to limit the field of vision of each of such person's eyes, to assist the person in shooting the bow with binocular vision.
Patent CA-2079933-A1 (CA)
Title: Catalytic method for the reductive amination of poly(oxytetramethylene) diacetates
Inventor: HOLLINGSWORTH DONALD R
IPC: C07C213/02
Filed: 1992-10-06
Abstract: CATALYTIC METHOD FOR THE REDUCTIVE AMINATION OF POLY(OXYTETRAMETHYLENE) DIACETATES           (Docket No. 81,023-F) ABSTRACT OF THE DISCLOSURE      Poly(oxytetramethylene) diamines useful in the prepara-tion of polyamide and polyurea elastomers are prepared by the catalytic reductive amination of a poly(oxytetramethylene) diacetate feedstock under reductive amination conditions in the presence of ammonia and hydrogen using a hydrogenation/ dehydrogenation catalyst composed of, on an oxide-free basis, about 70 to 75 wt.% of nickel, about 20 to about 25 wt.% of copper, about 0.5 to 5 wt.% of chromium and about 1 to 5 wt.% of molybdenum.
Patent CA-2080171-A1 (CA)
Title: Diversity radio receiver automatic frequency control
Inventor: BAECKSTROEM TOMAS O
IPC: H03J7/02
Filed: 1992-10-08
Abstract: A radio-frequency receiver employing antenna diversity is provided with a plurality of antennas and a local oscillator. Individual error signals are derived from each of respective ones of signals received from the plurality of antennas. The error signals are thereafter combined in such a way as to arrive at a combined error signal having greater reliability than any one of the individual error signals taken alone. Finally, an automatic frequency control circuit is controlled using the combined error signal. Since the effect of fading on the input signal to the automatic frequency control circuit is reduced, performance of the automatic frequency control circuit is increased and the quality of radio reception is improved.
Patent CA-2080354-A1 (CA)
Title: Calcitonin gene related peptide for the treatment of undescended testicles
Inventor: HUTSON JOHN M
IPC: A61P13/02
Filed: 1991-04-10
Abstract: Methods for the treatment of undescended testicles in male animals are described which methods comprise administering to a subject in need of such treatment calcitonin gene-related peptide (CGRP) or an analogue thereof having CGRP activity, optionally in association with a carrier and/or excipient, in an amount effective to cause testicular descent. There is also described pharmaceutical compositions for the treatment of undescended testicles in male animals, which comprise CGRP or an analogue thereof having CGRP  activity in association with a pharmaceutically acceptable carrier and/or excipient. The use of CGRP in the treatment of undescended testicles is an effective alternative to invasive surgery.
Patent CA-2080843-A1 (CA)
Title: All natural insole
Inventor: BRANT AUDREY M
IPC: A43B13/02
Filed: 1993-10-27
Abstract: ABSTRACT This invention is a removable, reuseable insole for boots and shoes, for added comfort, warmth and related health reasons.     These insoles are made from pure wool, which are all natural fibers, and will keep feet dry and warm in moist conditions where odour and irritation can arise.  They will, when hand washed and air dried last much longer than conventional insoles.
Patent CA-2083943-A1 (CA)
Title: Frequency standard using an atomic stream of optically cooled atoms
Inventor: CHU STEVEN
IPC: H01S1/06
Filed: 1991-05-31
Abstract: Beams of laser light trap and cool cesium atoms in a small vapor cell (1) and put the atoms in a particular quantum mechanical state. The lasers (3, 4) are then configured so as to launch the atoms upward by shifting the frequencies of the vertically propagating lasers. The atoms pass through a microwave waveguide (2) during both their ascent and descent. The microwave field is applied briefly each time the atoms are in the center of the waveguide so that the microwaves excite the cesium "clock" transition. Once the atoms have fallen back to where they started, the laser fields are turned on in a particular sequence. The fraction of the atoms that make a quantum mechanical transition is measured by observing the laser light scattered by the atoms. That signal indicates how close the microwave frequency is to the atomic transition.  The laser cooling reduces the relative motion of the atoms so that the atoms can be observed longer. The resulting atomic resonance measured is much narrower.
Patent CA-2084521-A1 (CA)
Title: Hepatitis c virus antigen polypeptide, production method therefor, and antibody detection method
Inventor: MIYAMURA TATSUO
IPC: C12P21/02
Filed: 1991-05-29
Abstract: A hepatitis C virus antigen polypeptide having a molecular weight of approximately 22 kilodaltons expressed from a hepatitis C virus structural gene region; a production method for a hepatitis C virus antigen polypeptide having a molecular weight of 22 kilodaltons and/or a peptide related thereto, wherein an expression vector having inserted thereinto a cDNA fragment of a hepatitis C virus structural gene region is inserted into a cultured cell line and the transfected cell line thus obtained is cultured; and a detection method for a hepatitis C virus antibody, wherein a hepatitis C virus antigen polypeptide is used as an antigen, and an antibody specific thereto is detected.
Patent CA-2086806-A1 (CA)
Title: Multiple spray pattern nozzle assembly
Inventor: BERFIELD ROBERT C
IPC: B05B1/16
Filed: 1993-01-06
Abstract: ABSTRACT OF THE DISCLOSURE            MULTIPLE SPRAY PATTERN NOZZLE ASSEMBLY    A spray nozzle assembly includes a coupler that directs a liquid flow into the assembly; a barrel that rotates within a sleeve in the coupler so that each of multiple channels can be sequentially directed into the liquid flow; a hard plate mounted to the end of the barrel having a separate, small cross-sectional aperture for each of multiple of the channels to produce high-pressure  spray  patterns,  the  hardness  of  the  plate allowing the small apertures to be stamped to close tolerances and to be resistant to deformation should a user try to unclog the nozzle with an object such as a paperclip or knife; and a cap that secures the plate to the barrel, has a sidewall that protects against debris becoming lodged between the plate and the barrel, and has a  large  cross-sectional  aperture  for  another barrel channel,  to allow production of a low-pressure spray pattern.
Patent CA-2087224-A1 (CA)
Title: Process for the preparation of nitrobenzene
Inventor: KOUWENHOVEN HERMAN W
IPC: B01J29/06
Filed: 1993-01-13
Abstract: Abstract The invention concerns a process for the preparation of nitrobenzene from benzene and nitric acid, wherein catalysts are applied based on the zeolite clinoptilolite.
Patent CA-2087912-A1 (CA)
Title: Aqueous coating compositions from polyethylene terephthalate
Inventor: RAO MADHUKAR
IPC: C08G63/78
Filed: 1993-01-22
Abstract: Coating compositions derived from the alcoholysis of polyethylene terephthalate.
Patent CA-2088033-A1 (CA)
Inventor: KOLTISKO BERNARD M JR
IPC: D04H1/64
Filed: 1993-01-25
Abstract: A packaged towelette composed of a sheet of nonwoven fibers impregnated with a binder which is a polyvinyl alcohol or an aqueous polymer emulsion containing polyvinyl alcohol as the protective colloid, the sheet being maintained in a wet condition within the package by contact with a nonaqueous lotion composition which is a liquid organic compound that is a nonsolvent for polyvinyl alcohol.
Patent CA-2088034-A1 (CA)
Inventor: AUVIL STEVEN R
IPC: C01B31/08
Filed: 1993-01-25
Abstract: ABSTRACT   Nitrogen is produced by separating air in a pressure swing adsorption process using a high capacity kinetically O2 selective material as the adsorbent.  An example of such an adsorbent is a carbon molecular sieve made from coconut shell char.  Such a coconut shell char having a high oxygen volumetric capacity is provided by crushing and sizing coconut shells to form granules which are then heated in flowing inert gas at a temperature ramp rate of about 2 to 12°C per minute to a peak temperature of 775 to 900°C which is then held so that the total heating time is up to 8 hours and thereafter the granular char is cooled in an inert gas atmosphere.  The granular char thus produced is kinetically selective for O2 over N2 without further modification to narrow the openings of its micropores and has an oxygen volumetric capacity in excess of 8.0 cc/cc at 1 atm. and ambient temperature.  Further modification of this char is provided by contacting it with an oxidizing atmosphere of carbon dioxide or a mixture of inert gas and carbon dioxide  H2O or O2 at temperatures ranging from 650 to 900°C untilthe gasified char has been altered so that its volumetric oxygen capacity is greater than 9.0 cc/cc at 1 atm. and ambient temperature.
Patent CA-2088366-A1 (CA)
Title: Sugar-based polymers
Inventor: DORDICK JONATHAN S
IPC: C07H15/04
Filed: 1992-05-27
Abstract: Chemoenzymatic methods of making sugar-based polymers are disclosed as well as novel sugar-based polymers. In one embodiment, acylated sugars are copolymerized with coreactants to yield novel sugar-based polymers. In another embodiment, non reducing sugars acylated with a compound having a terminal double bond are polymerized to yield novel sugar-based polymers.
Patent CA-2089326-A1 (CA)
Inventor: SENTAGNES DOMINIQUE
IPC: B27L11/00
Filed: 1993-02-11
Abstract: Abstract of the Disclosure A method and apparatus for setting the knife projec-tion of regrindable, strip-shaped cutting tools which are each screwed releasably to a knife carrier (8) and which are releasably arranged together with the carrier, in an at least approximately radial direction, in the rotary-drivable disk (1) of a disk-type cutter.  To simplify the operation and to improve the chip quality: first, each knife (4) of the disk (1) is set outside the disk-type cutter, in a single setting device, to a respective identical distance between the cutting edge (10) and the inner longitudinal edge (11) of the knife carrier (8) and is then screwed firmly to the associated knife carrier (8); second, after being installed in the disk (1), the knives (4) are successively oriented and fixed relative to a common plane (39) which is perpendicular to the disk axis (5) and which defines the first-cut face of the wood during the cutting (cutting plane); and third, the knife adjustment is carried out in such a way that the knife projection of each cutting edge (10) relative to the flight circle of the disk surface (3) increases outward in the radial direction over the knife length.
Patent CA-2092342-A1 (CA)
Title: Benzoxazinone and benzothiazinone derivatives endowed with cardiovascular activity
Inventor: SALA ALBERTO
IPC: C07D265/22
Filed: 1993-03-24
Abstract: ABSTRACT 2,3-dihydro-4H-1,3-benzoxazin-4-ones  and  2,3 dihydro--4H-1,3-benzothiaxin-4-ones of formula I                              I     wherein    R    represents    hydrogen, (C1-6)alkyl, (C5-7)cycloalkyl,   phenyl,   phenyl   substituted   by hydroxy,  halogen,  nitro,  (C1-6)alkyl,  (C1-6)alkoxy, methylenedioxy;  R1  and R2  independently  represent hydrogen, amide, amino, carboxy, hydroxy, nitro, ciano, mercapto;  X is  an oxygen or sulphur atom;  Y  is  a (C2-6)alkylene chain or (C2-6)cycloalkylene group; and the pharmaceutically acceptable acid or basic salts thereof.
Patent CA-2093017-A1 (CA)
Inventor: BLUM RONALD D
IPC: B29C33/38
Filed: 1991-10-09
Abstract: Méthode rapide, simple et relativement peu chère pour former des moules jetables (12) servant au moulage de lentilles optiques de qualité. La divulgation concerne une méthode de production de moule jetable ayant une surface de moulage qui comprend un moule primitif de base (10) présentant une première surface de contact (11); ayant un primitif de surface de moulage (13); ayant une deuxième surface de contact (14) de forme correspondant à la forme de la surface de moulage; ayant une composition de résine; contactant le primitif de base et le primitif de surface de moulage de manière que les première et deuxième surfaces de contact forment une cavité renfermant la composition de résine, cette cavité étant formée de manière à correspondre à la forme du moule jetable.
Patent CA-2098038-A1 (CA)
Title: Entry guide for strip mill
Inventor: SCHEIB WILLIAM R
IPC: B21B39/16
Filed: 1993-06-09
Abstract: ENTRY GUIDE FOR STRIP MILL                ABSTRACT OF THE DISCLOSURE    A mechanism for feeding strip material into the nip between a pair of strip mill rollers includes opposed guides for engaging and capturing the edges of the material being fed into the nip.  Each guide has a side wall, a top plate and a bottom plate that together define a tapered channel.  The wide end or throat of the channel initially receives the material, while the small end of the channel guides the material into the adjacent nip. The guides are movable toward and away from each other to accommodate strip materials of different widths. Each guide journals a series of vertically extending rollers of decreasing lengths upon which the associated side edge of the strip material sequentially rides as it moves toward the nip.  The lengths of the rollers substantially exceed the expected thicknesses of the strip material so that the lower ends of the rollers wear at a faster rate then their upper ends.  When the wear on the lower ends of the rollers has progressed to a predetermined degree, the rollers can be easily inverted to permit continued operation of the mechanism.