baber/WOPTO huggingface dataset:
Patent CA-2039965-C (CA)
Title: Foaming agents for carbon dioxide and steam floods
Inventor: NAAE DOUGLAS GENE
IPC: C09K8/594
Filed: 1991-04-08
Granted: 1995-11-21
Abstract: The invention is a foam method for improving conformance during a steam flood or carbon dioxide flood in an underground hydrocarbon formation penetrated by at least one injection well and at least one production well, which comprises injecting into an injection well about 0.05% to about 2% by weight aqueous surfactant solution, and then injecting into the injection well a flooding medium of steam or carbon dioxide, said surfactant solution comprising a surfactant having the formula R(C2H4O)nSO?M+   where R is a lignin phenol produced by reducing lignin in the presence of a reducing agent of carbon monoxide or hydrogen at a temperature greater than about 200°C and a pressure greater than about 100 psi, n has an average value of about 2 to about 25, and M+ is an alkali metal or ammonium cation.
Patent CA-2041156-C (CA)
Title: Sulfonimide catalysts for coating
Inventor: SZITA JENO G
IPC: C08L67/00
Filed: 1991-04-24
Granted: 2002-06-04
Abstract: Sulfonimide cure catalysts are used with aminoplast crosslinking agents and resins capable of reacting with aminoplast crosslinking agents to prepare heat curable compositions capable of crosslinking to form coatings and articles. Liquid or solid curable compositions may be prepared. Solid sulfonimide catalysts used in combination with solid glycoluril type crosslinking agents are well suited for powder coating systems containing hydroxy- and carboxy-functional resins.
Patent CA-2044370-C (CA)
Title: Feed processing for nitrogen rejection unit
Inventor: PAHADE RAVINDRA F
IPC: F25J3/02
Filed: 1991-06-11
Granted: 1993-05-25
Abstract: IMPROVED FEED PROCESSING FOR NITROGEN         REJECTION UNIT                ABSTRACT A system comprising a stripping column and a nitrogen rejection unit wherein a significant portion of the feed to the nitrogen rejection unit is provided at an increased pressure thus reducing product compression requirements.
Patent CA-2045092-C (CA)
Title: Stab initiator
Inventor: RAMASWAMY COODLY P
IPC: F42B3/10
Filed: 1991-06-20
Granted: 1995-11-21
Abstract: The invention is directed to a primer/detonator acceptable for use in an automobile air bag system.   The primer/detonator comprises adjoining compositions of NOL #130 primer mixture and NOL          #60 primer mixture.
Patent CA-2049912-C (CA)
Title: Adhesive composition
Inventor: SCHMUCKER ARDEN E
IPC: C09J175/04
Filed: 1991-08-26
Granted: 1997-01-28
Abstract: A polyurethane adhesive formed from (I) an NCO terminated prepolymer with excess of NCO and talc, and (II) a polyol, a urethane catalyst, talc and a minor amount of certain aryl or aromatic polyamines exhibits good sag and thixotropic properties and, also, exhibits good lap shear strength when cured between treatment-free substrates.
Patent CA-2050561-C (CA)
Title: Polymer polyols containing haloagenated aromatic monomers
Inventor: GASTINGER ROBERT G
IPC: C08G18/63
Filed: 1991-09-03
Granted: 2002-01-08
Abstract: Novel polymer polyols based on halogenated aromatic monomers such as tribromostyrene give polyurethane foams with improved flame retardant properties. For example, replacing conventional SAN polymer polyols with tribromostyrene (TBS)/acrylonitrile polymer polyols allows the preparation of polyurethane foams passing British Standard 5852, Part 2, Ignition Source 5 combustion Test and having better AST1VI E-906 values without the need for solid fillers such as melamine or aluminum trihydrate, although these and other flame retardant additives may be optionally employed as well. Elimination of these fillers also provides other improvements such as superior strength and better compression set properties. The TBS dispersions may also be used in conjunction with melamine to eliminate the need for liquid fire retardant additives.
Patent CA-2052884-C (CA)
Title: Angiotensin 11 antagonists in the treatment of hyperuricemia
Inventor: NAKASIMA MITSUYOSI
IPC: A61K31/44
Filed: 1991-10-07
Granted: 2003-12-30
Abstract: A pharmaceutical composition comprising a non-peptide type angiotension II receptor antagonist is useful f or the treatment of hyperuricemia.
Patent CA-2056320-C (CA)
Inventor: PAPAY ANDREW G
IPC: C10N10/02
Filed: 1991-11-27
Granted: 2002-03-12
Abstract: Oleaginous compositions and additive concentrates therefor having enhanced performance characteristics comprise at least a) one or more oil-soluble overbased alkali or alka-line earth metal-containing detergents having a TBN of at least 200; and b) one or more oil-soluble additive composi-tions formed by heating concurrently or in any sequence at least one ashless dispersant which contains basic nitrogen and/or at least ones hydroxyl group with (i) at least one in-organic phosphorus acid or anhydride, or at least one partial or total sulfur analog thereof, or any combination of the foregoing; or (i:i) at least one water-hydrolyzable organic phosphorus-containing compounds and water; and (iii) at least one boron compound; such that a liquid composition containing both phosphorus and boron is formed. The weight ratio of metal as component a) to phosphorus as component b) is in the range of 0.15:1 to 10:1.
Patent CA-2061285-C (CA)
Title: Rotational orientation sensor for laser alignment control system
Inventor: HAMAR MARTIN R
IPC: G02B7/00
Filed: 1992-02-14
Granted: 1996-03-12
Abstract: A laser alignment control system is provided for aligning a rotational portion of a machine tool to a master part.   The system includes a laser emitter that is mountable to one of the components being aligned and a photosensitive target mountable to the  other  components.    The  system  further  includes  a  data acquisition subsystem for receiving signals from the target and calculating alignment errors and required corrections for the system.  The alignment procedure requires rotating the target for the laser emitter in the rotating tool holder or the master part.          The target and/or the laser emitter are provided with a rotational orientation sensor operatively connected to the data acquisition subsystem  and  operative  to  produce  signals  identifying  the rotational orientation of the target and/or laser emitter.
Patent CA-2062530-C (CA)
Title: Chain design
Inventor: COLE EDWARD H JR
IPC: F16G5/18
Filed: 1992-03-09
Granted: 2004-03-30
Abstract: A three-way laced chain (40) has a plurality of links (42, 43, 45) that are arranged in rows (A, B and C) that extend across the width of the chain (40) where similarly located end regions of the links (42, 43, 45) are offset. The links (42, 43, 45) are arranged symmetrically around a column (52) of links (42, 43, 45) that extends along the longitudinal center of the chain (40). A plurality of first (43), second (42) and third (45) links are positioned in substantially parallel relationship with respect to each other. The second links (42) have a thickness less than the first links (43) and the third links (45) have a thickness greater than the thickness of the first links (43). An aperture (49) is located at each end of the first (43), second (42) and third (45) links. A plurality of connecting elements (51) extend through the apertures (49) and connect together adjacent first (43), second (42) and third (45) links. The second links (42) and third links (45) are positioned in the chain (40) to vary the spacing between adjacent links (42, 43, 45) and to vary distribution of the loads on the links (42, 43, 45) whereby the loads on the links (42, 43, 45) are substantially balanced across the width of the chain (40) and bending of the connecting elements (51) is substantially reduced.
Patent CA-2063973-C (CA)
Inventor: NAKAGAWA TANEHIRO
IPC: B43K8/22
Filed: 1992-03-25
Granted: 1999-04-20
Abstract: A color variation inducing device is positioned in contact with or in the proximity of or effects action through air blowing means on a thermally color-varying article provided with a thermally color-varying layer, thereby inducing color variation in the thermally color-varying layer.  The device comprises an electrothermal converter device provided with a heat absorbing portion and a heat generating portion based on Peltier effect, a radiator connected to the heat generating side of the electrothermal converter device, and a casing for housing and supporting the electrothermal converter device, wherein the electrothermal converter device is rendered functionable under the application of a DC voltage in such a manner that the heat absorbing side thereof exhibits a temperature reduction of at least 3°C with respect to the ambient temperature, within an ambient temperature range from 10 to 35°C.
Patent CA-2064362-C (CA)
Title: Improved process for cleaning a surface of thin film of oxide superconductor and utilization thereof
Inventor: NAKAMURA TAKAO
IPC: H01L39/24
Filed: 1992-03-27
Granted: 1998-10-06
Abstract: A process for removing contaminants from a surface of a thin film of oxide superconductor deposited on a substrate. The thin film of oxide superconductor is heat-treated in ultra-high vacuum at a temperature which is within a range of - 100 °C to + 100 °C of the temperature at which oxygen enter into the oxide superconductor.     The process is used for removing photo-resist from a surface of thin film of oxide superconductor and for producing a layered structure containing at least one thin film of oxide superconductor such as Y1Ba2Cu3O7-x having a contaminated surface. On the cleaned surface, another thin film of oxide superconductor or non-superconductor is deposited. The resulting structure of layered thin films is used for fabricating superconducting transistor, Josephson junctions, superconducting circuits or the like.
Patent CA-2067248-C (CA)
Title: Multi-wavelength pyrometer
Inventor: RONCHI CLAUDIO
IPC: G01J5/00
Filed: 1990-09-24
Granted: 2000-06-13
Abstract: The invention relates to a multiwavelengths pyrometer for measuring the temperature and emission rate of a surface above 900 K. This pyrometer contains several radiation detectors which are sensitive to different wavelengths .lambda.l....lambda.i....lambda.n and a data processor which receives the output signals of the radiation detectors after digitalization, and deduces therefrom, by means of the Wien-Planck law, the temperature, assuming that the surface is an ideal black body. Then, the emission rate is computed from these temperature values according to an approximation law as a function of temperature and the wavelength, and from this the desired temperature is computed. According to the invention, the differences between the pyrometer signals and the pyrometer signals to be expected due to the assumed emission rate and the desired temperature deduced therefrom are computed for several of the approximation laws and the different wavelengths and then that approximation law is selected which represents for all wavelengths the lowest sum of the squares of these differences and the highest precision of temperature and emission rate.
Patent CA-2085727-C (CA)
Title: Apparatus for triggering chemically augmented electrical fuses
Inventor: RANJAN RADHAKRISHNAN
IPC: H02H3/02
Filed: 1992-12-17
Granted: 2005-08-02
Abstract: An apparatus for triggering chemical augmented electrical fuses includes a light source which emits a light signal in the form of visible or infrared light energy upon receiving a signal from a control system, trigger signal source or other fuses. The light signal is coupled to a light detector by an optical coupling device such as a fiber optic cable. Upon receipt of the light signal, the light detector generates a signal which causes the application of electrical energy to exothermic material in a fuse, thereby detonating the material and causing interruption of current through the triggered fuse.
Patent CA-2086432-C (CA)
Inventor: SCHULTE GARY R
IPC: C07D403/06
Filed: 1991-06-12
Granted: 1997-12-16
Abstract: La présente invention concerne de nouveaux dérivés du 3-(pyrazoyl-1-substitué)-2-oxindole qui sont des inhibiteurs de la biosynthèse de la prostaglandine-H2-synthase, de la 5-lipoxygénase et de l'interleukine-1. Les composés de l'invention sont utiles comme inhibiteurs de la biosynthèse de la prostaglandine-H2-synthase et de l'interleukine-1, en soi, et comme agents analgésiques, anti-inflammatoires et anti-arthritiques dans le traitement des maladies inflammatoires chroniques. La présente invention concerne également des compositions pharmaceutiques comprenant lesdits dérivés du 3-(pyrazoyl-1-substitué)-2-oxindole; des méthodes pour inhiber la prostaglandine-H2-synthase et la biosynthèse de l'interleukine-1; et pour traiter les maladies inflammatoires chroniques chez un mammifère avec lesdits composés. De plus, la présente invention concerne certains nouveaux composés utiles comme intermédiaires dans la préparation des dérivés du 3-(pyrazoyl-1-substitué)-2-oxindole de la présente invention et un procédé pour la préparation des dérivés du 3-(pyrazoyl-1-substitué)-2-oxindole.
Patent CA-2087850-C (CA)
Title: Process and device for the reduction annealing of powdered iron
Inventor: JOHNEN DIETER
IPC: B22F1/145
Filed: 1991-09-20
Granted: 2002-09-03
Abstract: The present invention relates to a process for the continuous reduction and soft annealing of water-atomized iron powder that is passed through an indirectly heated processing chamber with a heating, reduction, and cooling zone, in the form of a loose powder charge. In order to increase the throughput and achieve reduced energy and reduction agent costs, it is proposed that the powder charge be agitated at least in the reduction zone when passing through the processing chamber during constant mixing, when the temperature amounts to 800 to 950°C, and in that fresh reduction gas be constantly introduced into the reduction zone in order to regulate the dewpoint of the furnace atmosphere.
Patent CA-2093644-C (CA)
Inventor: QUESTEL ROGER
IPC: C08K3/02
Filed: 1991-10-03
Granted: 1995-05-16
Abstract: A utilitarian and/or decorative object (13) and a method for forming the object fabricated mainly of a plastic material, having a metallic outer face (15) which thereby imparts to this object the appearance and/or hand of a like object made entirely of metal.  A mixture of a liquid monomer, a curing agent, a dispersion of metal particles and floatable particles (A, B, C, D) are poured into a mold (12). The metal particles settle in the mold (12) or the mold (12) is centrifuged to cause them to migrate toward the outer region of the piece (13) before the monomer polymerizes. At the same time the floatable particles, rise to the inner region of the piece before polymerization. After removal from the mold (12), the outer face of the piece is polished and buffed to remove the plastic skin from the surface and to polish the exposed metal surface (15).
Patent CA-2108904-C (CA)
Title: Press and method for modifying a press for use in the press section of a papermaking machine or the like
Inventor: BERG BO-CHRISTER
IPC: D21F3/02
Filed: 1992-05-22
Granted: 1998-12-01
Abstract: 2108904 9220858 PCTABS00017 The invention relates, according to a first aspect, to a press (10; 110) for the press section of a papermaking machine. The press is of the type having a rotary press roll (12; 112), a substantially stationary pressure shoe (14; 114), and a press belt (18; 118) running in an endless path around the pressure shoe between this and the press roll and having a substantially impermeable inner surface facing the pressure shoe. A separate, endless reinforcing belt (30; 130) enclosing the press belt (18; 118) is in frictional engagement over the entire length of the press belt so as to run together with the press belt in the endless path. The reinforcing belt (30; 130) may be presstressed, e.g. by shrinkage, in its running direction and, optionally, also transversally thereof. According to a second aspect, the invention relates to a method of modifying a press (10; 110) of the type indicated above, in which method the press belt (18; 118) is enclosed by a separate, endless reinforcing belt (30; 130) of the above-indicated type.
Patent CA-2108956-C (CA)
Inventor: SKUDERA WILLIAM J JR
IPC: G01S3/04
Filed: 1993-10-21
Granted: 1998-04-07
Abstract: The disclosed system measures the phase relationship of first and second BPSK signals received at a pair of receiving antennas.  The antennas are connected to respective first and second converting circuits which convert the received signals into first and second CW signals.  Each CW signal is subjected to chirp-Z processing so as to convert the first and second CW signals into first and second chirp-Z transforms, which are narrow pulses.  Then, the phase relationship of the first and second narrow pulses is detected, so as to thereby detect the phase relationship of the first and second received BPSK signals.  That phase information can be used, for example, to calculate the angle-of-arrival (AOA) of the received BPSK signals.  Advantageously, each converting circuit includes a series connection of a frequency-doubling circuit, a bandpass filter, and a circuit for dividing frequency by two, in that order.  A switching arrangement is provided which is operable for applying the outputs of the converting circuits to the phase detecting circuit only when the received signals are BPSK signals.
Patent CA-2112168-C (CA)
Inventor: BRETON RICHARD EDWARD
IPC: B41L43/02
Filed: 1990-08-31
Granted: 1996-12-03
Abstract: An improved folder apparatus includes a first folder assembly which forms a first fold in sheet material along the path of movement of the sheet material.  A second folder assembly forms a second fold in the sheet material in a direction extending transversely to the path of movement of the sheet material.  A third folder assembly forms a third fold in the sheet material with the first and third folds extending along the path of movement of the sheet material through the third folder assembly and the second fold at a leading edge portion of the sheet material.  During the forming of the three folds, the sheet material is continuously moved through the folder assemblies without stopping.  The third folder assembly includes an array of upper and lower tapes.  The array of tapes tapers from a wide inlet portion of the third folder assembly toward a discharge portion of a third folder assembly.  The array of upper and lower tapes maintains areas on opposite sides of the third fold flat in a horizontal plane while the sheet material is gripped by the tapes.  A stacker assembly stacks the folded signatures received from the third folder assembly in a stack with major side surface areas in an upright orientation and with the third fold downward against a supporting surface.
Patent CA-2117816-C (CA)
Inventor: GODING DAVID J
IPC: B61F5/30
Filed: 1994-10-11
Granted: 1997-04-29
Abstract: A pair of opposed positioning lugs are attached to respective front and rear pedestal jaw walls of a railcar truck sideframe. The lugs are interposed between said respective jaw wall and the truck axle bearing assembly, laterally extending across the width of the sideframe pedestal jaw. The lugs function to independently maintain each axle in a right-angular relationship with respect to the truck sideframe when the sideframe travels upon linear track. Without the positioning lugs, each of the axles can potentially contact either of the pedestal jaw walls even when the truck travels upon linear track. This is due to the casting variances in the longitudinal length of each sideframe comprising the truck. When this type of truck negotiates a curve, an axle can be in contact with a pedestal jaw wall during linear truck travel to prevent the truck from steering as it was designed. The positioning lugs require widening of the longitudinal distance between the pedestal jaw walls before they can be installed this ensures proper tolerances. Each of the positioning lugs is located on the axle longitudinal centerline and is preferably machined from the as-cast pedestal jaw material and when the truck proceeds onto a linear section of track, the positioning lugs will assist the axle back into a right-angular relationship between it and the sideframe. The positioning lugs can also be made from metallic shims welded to the pedestal walls.
Patent CA-2117859-C (CA)
Title: Compositions of propylene polymer materials and olefin polymer materials with reduced gloss
Inventor: EPPERT STANLEY E JR
IPC: C08L23/16
Filed: 1994-10-11
Granted: 2000-09-19
Abstract: Disclosed is a polyolefin composition comprising (A) a propylene polymer material and (B) an olefin polymer material selected from the group consisting of a partially crosslinked. thermoplastic elastomer composition, an olefin copolymer rubber and a mixture thereof.      The polyolefin composition of this invention provides reduction in gloss.
Patent CA-2121511-C (CA)
Title: A cap for writing and marking instruments
Inventor: FUHRMANN ARTHUR D III
IPC: B43K23/12
Filed: 1992-11-12
Granted: 1995-12-26
Abstract: A removable cap (10) for receiving a writing implement includes a hollow tubular member (12) with a closing wall (16) at one end and an opening (14) at the other end. The closing wall (16) possesses three radial rib members (26) and a central interior land portion (22) which define three arcuately shaped apertures (24) which are configured to allow air to communicate with the interior of the cap (10) to dry residual ink on the writing point of the implement.
Patent CA-2124818-C (CA)
Inventor: BROWN RICHARD I
IPC: B04B7/08
Filed: 1993-03-23
Granted: 2005-03-08
Abstract: Systems and methods for separating a suspension of plasma and platelets from whole blood rotate a chamber (58) about an axis (62) to create within the chamber (58) a low-G zone radially close to the axis (62) and a high-G zone (66) spaced radially further from the axis (62) than the low-G zone (64). The systems and methods introduce whole blood into an inlet region (68) of the chamber (58) to initiate separation of red blood cells toward the high-G  zone (66) of the inlet region (68). This creates a strong flow of plasma that moves radially toward the low-G zone (64) of the inlet region (68) and elutes platelets into suspension with it. The systems and methods direct the radial flow of plasma and eluted platelets within the inlet region (68) to a port (72) in the inlet region (68) for transport out of the chamber (58).
Patent CA-2125210-C (CA)
Title: Photographic printing apparatus
Inventor: IWASAKI RYUICHI
IPC: G03B27/46
Filed: 1994-06-06
Granted: 1999-09-21
Abstract: A photographic printing apparatus includes a reading device for reading image information from a film, and an exposure condition computing device for computing exposure conditions for exposing a photosensitive material based on the image information read by the reading device. The apparatus further includes an image information converter for converting the image information read by the reading device into image information expected to appear on the photosensitive material when the photosensitive material is exposed to the image information on the film under the exposure conditions computed by the exposure condition computing device. The image information converted by the image information converter is displayed on a monitor. The exposure condition computing device receives instructions through a control panel to correct the exposure conditions for the image information displayed on the monitor, car instructions not to correct the exposure conditions. An exposure device exposes the photosensitive material under exposure condition computed by the exposure condition computing device based on correcting instructions inputted through the control panel. The exposure device is operable in parallel with an input from the control panel to the exposure condition computing device, to exposure the photosensitive material to image information for which the exposure conditions have been corrected based on the correcting instructions from the control panel or for which non-correction instructions have been received.