baber/WOPTO huggingface dataset:
Patent CA-2091497-C (CA)
Title: Dry low nox multi-nozzle combustion liner cap assembly
Inventor: FITTS DAVID O
IPC: F23R3/42
Filed: 1993-03-11
Granted: 2002-08-27
Abstract: A modular combustion liner cap assembly (42) for use in a multi-nozzle combustor of a gas turbine includes a substantially cylindrical first sleeve (46) having a rearward end and a forward end; a rear plate (48) fixed to the rearward end of the sleeve (46), the rear plate (48) provided with a first plurality of openings (52) for receiving a corresponding number of fuel nozzles (32); a forward plate subassembly (68) fixed to the forward end of the sleeve (46), the forward plate provided with a second plurality of openings (80) in substantial alignment with the first plurality of openings in the rear plate (48); a plurality of open ended premix tubes having forward and rearward ends, each tube (96) extending axially within the sleeve (46) between the rear plate (48) and the forward plate assembly (68), each premix tube (96) supported within a corresponding one of the first plurality of openings (52) at its rearward end and a corresponding one of the second plurality of openings (80) at its forward end.
Patent CA-2093090-C (CA)
Inventor: YAMAOKA YUKIO
IPC: C22C38/44
Filed: 1993-03-31
Granted: 1997-12-09
Abstract: A two-phase stainless steel wire rope with wires having chemical compositions of 0.1% or less of C, 1.0% or less of Si, 1.5% or less of Mn, 0.04% or less of P, 0.03% or less of S, 18.0 to 30.0% of Cr, 3.0 to 8.0% of Ni, 0.1 to 3.0% of Mo and the balance of Fe, and 30.0 to 80.0% of ferrite amount, which is controlled to have a mean slenderness ratio (M R value) of 4 to 20 by drawing with the reduction of cross-sectional area between 40 to 97%, and further subjected to aging treatment at the temperature between 150 and 600 deg.          C. . This stainless steel wire rope offers a long life considerably superior in both fatigue life and corrosion resistance, thereby enabling it applicable for dynamic use.
Patent CA-2096562-C (CA)
Title: Method of forming closely spaced, generally parallel slots through a thin wall and product formed thereby
Inventor: JOHNSON DAVID A
IPC: B23K26/00
Filed: 1993-05-19
Granted: 2001-07-17
Abstract: A method of manufacturing an electrical connector housing for mounting a plurality of connector elements. Such a housing mounts elements to be engaged by corresponding contacts of an integrated circuit device which are.disposed in an array. The method includes the steps of providing a block made of an appropriate material such as a polyamide. The block provided has a relatively thin wall which is defined by two oppositely facing surfaces. Typically, the thickness of the wall is less than about 0.15 inches. A trough, generally conforming in size and shape to the size and shape of the contact array of the integrated circuit, is formed in at least one of the two oppositely facing, spaced surfaces defining the wall.  Such a trough is intended to receive a connector element support.  In manufacturing the housing for. mounting the connector elements, each trough is filled with a rod, generally conforming in cross- section to a cross-section of the trough. The rod can, it is envisioned, be made of the same material of which the block is made. With the rod or rods received within their corresponding troughs, a plurality of generally parallel slots ere laser machined in the block. The slots are positioned to intersect, and be closely spaced along, each trough.
Patent CA-2099268-C (CA)
Inventor: BOEKE JEF D
IPC: A61K39/00
Filed: 1992-01-02
Granted: 2003-12-02
Abstract: A new type of dominant negative gene-fusion acts as an antiviral agent when expressed in infected cells. The dominant ne-gative effect is obtained by fusing a gene coding for a capsid or envelope protein of a virus to a gene coding for an enzyme (e.g.. nuclease or protease) that can destructively hydrolyze or modify the encapsulated viral DNA, RNA or proteins. The Fusion gene is expressed in virally infected cells; viruses assembled in these calls will then "self-destruct" because the fusion enzyme incorpo-rated in the viral particles destroys or functionally alters essential components of the virus, thus preventing the virus from produc-tively infecting another cell.
Patent CA-2099791-C (CA)
Inventor: TACHIKAWA MAMORU
IPC: B01J31/22
Filed: 1993-07-05
Granted: 1999-03-23
Abstract: The present invention relates to a method for the preparation of 1-aza-2-silacyclopentane compounds whose nitrogen is substituted by a hydrocarbon group or a heteroatom-containing hydrocarbon group.  The method comprises effecting an intramolecular hydrosilylation reaction of a N,N-disubstituted aminosilane.  In a preferred method, the intramolecular hydrosilylation reaction is conducted in the presence of a rhodium-containing catalyst.
Patent CA-2101174-C (CA)
Inventor: VERDUIJN JOHANNES P
IPC: B01J20/18
Filed: 1992-01-23
Granted: 2000-08-01
Abstract: Des zéolites extrudées, liées par silice, peuvent être transformées en agrégats de zéolites sans liant, par vieillissement de la zéolite dans une solution ionique aqueuse qui contient des ions hydroxy, dans laquelle le rapport molaire initial OH-:SiO2 atteint 1,2, et qui fait transformer le liant, qui était du silice, pratiquement en une zéolite du type qui était initialement lié. De tels extrudats ont une excellente résistance mécanique et des propriétés avantageuses, telles qu'un pouvoir d'adsorption, comparable à celles d'une poudre de zéolites non extrudées.
Patent CA-2106782-C (CA)
Inventor: TAKIZAWA KUNIHARU
IPC: F21V9/40
Filed: 1992-11-12
Granted: 1999-06-01
Abstract: A lighting system comprises a light source (2), a liquid crystal dimmer plate (4) for scattering a desired quantity of light from the light source (2), and a control power supply (5) for controlling a light scattering rate of said liquid crystal dimmer plate (4), so that a light component, included in the light from the light source (2), transmitted through the liquid crystal dimmer plate (4) with no scattering is employed as illuminating light.
Patent CA-2108022-C (CA)
Inventor: GRAHN BENGT
IPC: E04H15/14
Filed: 1992-04-02
Granted: 2003-06-10
Abstract: A ventilation device for tents with at least one roof top (8) and a place for an open fire under this roof top, the tent cloth (4) having an upper boundary (12) at a distance below the apex of this roof top, so that an opening (9) for discharging flue gases coming from a fire is formed at the roof top, comprises a net (10) substan-tially impervious to insects, which is arranged in said flue gas opening (9) so as to prevent insects from getting into the tent through this opening. The insects net is movably arranged with re-spect to the frame work of the tent and the device further com-prises an arrangement (14, 15, 18) for regulating the degree of the coverage of the flue gas opening by the insects net between a first position substantially entirely covering it and at least a position in which the flue gas opening is at least partially set free.
Patent CA-2111572-C (CA)
Title: Digital signature algorithm
Inventor: KRAVITZ DAVID WILLIAM
IPC: G09C1/00
Filed: 1992-07-24
Granted: 1999-01-05
Abstract: A method is provided for generating and verifying a digital signature of a message m. This method requires a pair of corresponding public and secret keys (y and x) for each signer, as well as a pair of public and secret values (r and k) generated for each message by the signer. The public value r is calculated according to the rule r = (g k mod p) mod q. A value s is then selected according to the rule s = k-1(H(m) + xr) mod q where H is a known conventional hashing function. The message m, along with the signature (r, s) is then transmitted. When the transmitted signal is received a verification process is provided. The received values of r and s are tested to determine whether they are congruent to 0 mod q. Additionnally, r is tested to determine whether it is equal to v mod q, where v is computed from r, s, m and y. For legitimately executed signatures, v = g k mod p.
Patent CA-2113796-C (CA)
Inventor: ZIELINSKI RONALD E
IPC: C08J7/12
Filed: 1992-07-16
Granted: 2003-11-18
Abstract: A method of reducing the static and dynamic coefficients of friction and improving the wear life of elastomeric articles. The articles are exposed to gaseous fluorine in a reactor vessel under reaction conditions sufficient reduce the friction coefficient and improve the wear life, without promoting degradation of the tensile properties of the article. A fluorinated material is created on the external portions of the article, which extends inwardly into the matrix of the article. The method additionally improves the barrier properties of thermoplastic elastomers.
Patent CA-2117266-C (CA)
Title: Composition epaississante et emulsifiante pour breuvages
Inventor: TARR ROBERT EARL
IPC: A23L29/269
Filed: 1992-10-20
Granted: 1998-01-06
Abstract: Système épaississant/émulsifiant pour boisson, consistant en un mélange de trois produits : alginate de propylèneglycol (épaississant surfactif), xanthame (épaississant pseudoplastique) et gomme guar (épaississant newtonien). Ce système donne des émulsions d'huile dans l'eau très stables dans les boissons, et permet d'obtenir des boissons à texture entière, même à pH acide. Le système utilise une faible teneur en gomme totale (moins de 0,4 % dans une boisson non concentrée), tout en produisant des émulsions huileuses stables, sans épaississement excessif.
Patent CA-2118122-C (CA)
Inventor: TANABE MASATO
IPC: C07J75/00
Filed: 1993-04-14
Granted: 2002-09-03
Abstract: A method is provided for isolating 5,7-diene-containing steroids, particularly 3 .beta.-ols and esters of 3 .beta.-ols, from a sterol mixture. The method involves (1) treating the mixture with a dienophile or with an oxidizable dienophile precursor in combina-tion with an oxidizing agent so as to provide a Diels-Alder adduct of the 5,7-diene to be isolated, followed by (2) removal of the adduct from the mixture and (3) regeneration of the 5,7-diene with a suitable reducing agent. The invention also encompasses subsequent purification steps and intermediate modification of the Diels-Alder intermediate, e.g., wherein chemical conversion of the Diels-Alder adduct is effected prior to regeneration of the 5,7-diene.  Novel compounds which are Diels-Alder adducts of 5,7-diene-containing steroids are provided as well.
Patent CA-2121009-C (CA)
Inventor: SZEGDA ANDREW
IPC: H01R9/05
Filed: 1994-04-11
Granted: 2002-06-25
Abstract: A male splice adaptor which includes a tubular housing having first and second sections which are detachably coupled to one another. Each of the sections includes an output port from which a connector pin extends from within the housing. A seal is provided in each of the output ports and is configured so that as the first and second sections are coupled to one another, the seal is expanded so as to create a weather-tight seal within the output port.
Patent CA-2121508-C (CA)
Inventor: FELSVANG KARSTEN STIG
IPC: B01D53/64
Filed: 1992-11-03
Granted: 2002-04-16
Abstract: A method is disclosed of improving the Hg-removing capability of flue gas purification processes for coal-fired power plant flue gases using spray drying absorption systems. By adjusting the chloride content of the flue gas or the absorbent a perma-nent high Hg removal is achieved.
Patent CA-2129345-C (CA)
Inventor: DAVISON THOMAS W
IPC: A61B17/32
Filed: 1993-01-29
Granted: 2000-08-29
Abstract: Disclosed is an ultrasonic scalpel blade (12) with a hook (40) and having flat, non-sharpened, relatively dull edges (30, 32) to improve ultrasonic coupling to adjacent tissue and afford exceptional coagulation and hemostasis. The blade with hook is particularly useful for cutting loose, unsupported tissue by grasping the tissue with the hook portion and tensioning it while cutting. The blade affords improved coagulation and hemostasis in loose, unsupported tissue, while simultaneously providing an improved cutting action.
Patent CA-2135803-C (CA)
Inventor: DOHNAL DIETER
IPC: H01F29/04
Filed: 1993-05-06
Granted: 2003-09-30
Abstract: A cast-resin transformer has a transformer housing, a plurality of windings each having a plurality of taps, respective contacts connected to the taps and mounted on the housing in respective arrays which are all identical, and respective identical mounting elements on the housing at each of the contact arrays. Respective identical step switches each serve a respective winding of the transformer and each have a switch housing secured to the respective mounting element of the transformer housing at the respective contact array and a step contact movable along the respective connector elements and electrically engageable therewith. A drive motor and a main shaft are connected to all of the step contacts for synchronously stepping the step contacts along the respective connector elements.
Patent CA-2136124-C (CA)
Title: Improved process for preparing unsaturated carboxylic acid esters and novel apparatus for preparing the same
Inventor: WOO BOO G
IPC: C07C69/653
Filed: 1994-11-18
Granted: 2000-07-18
Abstract: The present invention relates to a process for continuously preparing unsaturated carboxylic acid esters by esterifying an (aliphatic) alcohol having 1 to 8 carbon atoms with an unsaturat-ed carboxylic acid in the presence of a cation exchange resin catalyst, characterized in that the process is conducted by continuously circulating said reactants in contact with said catalyst from the top to the bottom through a reactor which is composed in the form of a fixed bed divided into 1 to 10 steps wherein each step comprises a catalyst bed, a filter and a air inlet, and has a thermal insulating outer wall, supplying a vaporizing heat for extraction of water, which is produced during the reaction, through a heat exchanger outside the reactor, circulating the reactants between the reactor and the heat ex-changer by means of a circulating pump, contacting an azeotropic mixture of water vaporized by the heat exchanger and an alcohol with an alcohol circulating in a column tower or a raw  alcohol supplied from an alcohol inlet located on the top of the column tower to recycle the high boiling component into the reactor and, at the same time, to transfer the light component to the upper part of the column in which the light component is condensed, separating the condensate into an organic layer and water in a decanter, and then recycling the organic layer into the reactor and removing the water produced during the reaction, and a novel apparatus for carrying out this process.
Patent CA-2137931-C (CA)
Inventor: JOHNSON W DUDLEY
IPC: A01M1/22
Filed: 1993-06-10
Granted: 1998-07-14
Abstract: The invention provides an apparatus and a method for controlling pests which, ac cording to one aspect of the invention, uses a laser beam (14) which is scanned over a defined area and incapacitates se nsory organs of various pests when they enter the defined area. Such a pest control system uses a laser source (12) in cooperation with a scanner (16) which then repetitively scans the laser beam (14) throughout the defined area. Any pest which wanders into thi s area, or is attracted into this area, is likely to sense the laser beam, typically through its eyes or light spot. The laser beam i s of sufficient energy to destroy the sensory organ and incapacitate the pest.
Patent CA-2141454-C (CA)
Inventor: COHEN IRUN R
IPC: C07K14/445
Filed: 1993-07-28
Granted: 2007-01-09
Abstract: The invention relates to conjugates of poorly immunogenic antigens, e.g.  peptides proteins and polysaccharides, with a synthetic peptide carrier constituting a T cell epitope derived from the sequence of human heat shock protein hsp65, or an analog thereof, said peptide or analog being capable of increasing substantially the immunogenicity of the poorly immunogenic antigen. Suitable peptides according to the invention are Pep278h, which corresponds to positions 458-474 of human hsp65, and Pep II, which corresponds to positions 437-448 of human hsp65, but in which two cysteine residues at positions 442 and 447 are replaced serine residues.
Patent CA-2141476-C (CA)
Inventor: CASTREN RISTO
IPC: F28F1/12
Filed: 1995-01-31
Granted: 2002-06-25
Abstract: An apparatus and a method for manufacturing a needle-rib heat-exchanger construction including a band which is wound around a tube is described.  Initially, cuts are formed on both sides of an elongate band and thereafter the band is passed through a series of engaging former wheels. A bottom part is formed into the band and top portions of the band are folded onto the bottom part. Needle-shaped ribs are formed to project from the top portions and are placed at an angle in relation to one another. The band with needle-shaped ribs is then mounted on the tube.
Patent CA-2141961-C (CA)
Title: Antioxidant
Inventor: TOMITA MAMORU
IPC: A61K8/00
Filed: 1993-08-04
Granted: 2001-05-08
Abstract: The present invention provides a safe antioxidant applicable for food, drug medicine, non-medical drug and other products.      The antioxidant of the present intention contains, as an effective ingredient, an antioxidant substance selected from the group consisting of a hydrolysate of lactoferrin, one or more peptides isolated from a hydrolysate of lactoferrins, one or mare synthetic peptides having the same sequence as that of the peptide isolated from the hydrolysate of lactoferrins, and any mixture thereof, or said antioxidant substance and oxidant preventive agent.      This antioxidant has an excellent antioxidant action for various lipids, and is very safe even when used in foods and drug medicine. Scince it exhibits antioxidant effect with only small quantity, there is almost no adverse effect on flavor even when applied in foods and the like.
Patent CA-2143919-C (CA)
Inventor: MCCURLEY JEFFREY L
IPC: G01B7/00
Filed: 1995-03-03
Granted: 2001-05-29
Abstract: An angular sensor has a shaped dual magnet structure carried upon a pole piece having a generally "c" shaped cross-section. The magnet and pole piece define a generally circular linear field which is concentric about the axis of rotation of the complete rotor. A Hall effect device is inserted into the open portion or gap between the two magnets and is exposed to a well defined field. Through the use of particular magnet materials and a magnet geometry extending from the axis of rotation to a point well beyond the Hall sensor, a precise and yet tolerant magnetic circuit is produced.
Patent CA-2147186-C (CA)
Inventor: BATSON J GARY
IPC: H02M7/5387
Filed: 1995-04-18
Granted: 2001-05-15
Abstract: An RMS regulation system for power supplies characterized by a digital loop feedback of a quickly sampled peak crest voltage value of a trapezoidal waveform, whereby a microprocessor controls either the timing of, or rate of, the trapezoidal waveform rise/fall time in order to modulate the crest width of succeeding waveform outputs and provide RMS voltage regulation.
Patent CA-2151670-C (CA)
Inventor: GREGG DAVID PAUL
IPC: G11B7/258
Filed: 1995-06-13
Granted: 1999-07-13
Abstract: An optical tape cartridge is disclosed that is suitable for playing by an optical tape player.  The tape player provides the cartridge with a voltage supply capable of supplying the optical tape with a relatively high voltage. The tape cartridge includes a sealed cartridge housing and first and second tape reels that are disposed within and freely rotatable in either direction within the housing. The reels act as tape supply and tape take up reels. Also included in the cartridge is an optical tape that has a first surface on an optically recordable side.  The tape is wound on and couples the two reels with a tape segment. The tape segment is positioned with the optically recordable side facing outwardly from each of the reels. The tape includes a conductive layer that extends substantially the length of the optical tape. The conductive layer is grounded at least one end. The housing includes a sealed window positioned on a housing surface that is located across a portion of the tape segment. The window allows optical reading from the segment of optical tape. A conductive guide guides the tape segment past the window. To guide the tape segment in this manner, the guide hasa portion disposed adjacent the window. The conductive guide is connected to therelatively high voltage supplied by the tape player power supply.  The conductive guide maintains the first surface of the tape segment a relatively fixed distance from the window by electrostatically attracting the grounded conductive layer of the tapesegment towards the conductive guide.
Patent CA-2158671-C (CA)
Title: Continuous procedure for the simultaneous collection and precipitation of mercury in gases containing it
Inventor: SITGES MENENDEZ FERNANDO
IPC: B01D53/34
Filed: 1995-09-20
Granted: 2001-07-31
Abstract: Procedure for the simultaneous collection and precipitation of mercury from mercury-containing gases. The procedure consists of passing the mercury gas through a washing tower where hydrogen sulphur (gas) is continuously and intermittently injected at the same time that it is watered with a solution containing a mercury complex (II) stable in semi acid, such as [I2Hg]2- or [(SCN)4Hg]2-, without requiring the use of an additional oxidant. Both the collection and precipitation of the mercury and the regeneration of the solution containing the mercury complex (II) take place simultaneously in just one stage.
Patent CA-2164372-C (CA)
Title: Method for converting progressive scan signals and converter thereof
Inventor: HORI AKIHIRO
IPC: H04N11/20
Filed: 1995-12-04
Granted: 2004-11-16
Abstract: A converter comprising an input terminal 1 for receiving a chrominance signal of 4:2:2P format progressive scan signal, a low pass filter 2 for passing low frequency component contained in the chrominance signal input to the input terminal 1, high pass filter 3 for passing high frequency component contained in the chrominance signal input to the input terminal 1, a detection means 4 for detecting the high frequency component level of the chrominance signal filtered with the high pass filter 3, a sub-sampling means 6 for sub-sampling the chrominance signal and converting the sub-sampled signal into a chrominance signal of 4:2:0P format progressive scan signal and a switch 5 for connecting the low pass filter 2 and the sub-sampling means 6 to input the low pass filtered chrominance signal to the sub-sampling means 6 when the high frequency component level is detected to be a predetermined level or higher, and for connecting the input terminal 1 and the sub-sampling means 6 to input the chrominance signal input to the input terminal 1 to the sub-sampling means 6 when the high frequency component level is detected to be lower than the predetermined level.
Patent CA-2172519-C (CA)
Title: Method of resolution of two enantiomers by crystallysation
Inventor: COQUEREL GERARD
IPC: C07C29/78
Filed: 1994-09-22
Granted: 2007-04-03
Abstract: A method of optical enantiomer resolution by preferential crystallization involves entering, each time crystallization starts, the two-phase domain containing excess enantiomer and the saturated solution, and cooling according to a well-defined kinetic schedule. A racemic mixture of fine particle size is added to the mother liquors obtained after harvesting the crystals, the mother liquors then being heated to a temperature lower than that of homogenization of the solution so that excess enantiomer is present only in a solid state in equilibrium with the solution. Further cooling produces the other enantiomer and completes the cycle of operations which may then be carried out repetitively.