baber/WOPTO huggingface dataset:
Patent CA-2062470-A1 (CA)
Title: Extruding device for covering at least two webs with a particular coating. the coating process obtained
Inventor: BOURDON RAYMOND
IPC: B29C48/06
Filed: 1992-03-06
Abstract: The present invention relates to a device enabling a plurality of identical or different cores to be covered with a material of the same type. 
<??>Method for manufacturing at least two complex materials constituted by a coat (sheath) of the same kind containing identical or different cores. 
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Patent CA-2062698-A1 (CA)
Inventor: SOOD PRADEEP K
IPC: H02M7/21
Filed: 1992-03-11
Abstract: A high power-factor converter (50) for use with motor drives and power supplies.  A first and "buck"-type converter section (62) is connected to an a.c. voltage source.  This section provides an output voltage having preselected voltage characteristics.  This section is operational during that portion of an input voltage cycle in which the input voltage level exceeds that of the output voltage level.  A second and "boost"-type converter section (70) is also connected to the voltage source.  This second section also provides the output voltage, and is operational during that portion of the input voltage cycle in which the output voltage level exceeds that of the input voltage level.  A control circuit (66) is responsive to the relative levels of the input and output voltages to operate the first and second converter sections on a time sharing basis in which converter operation is switched between the two converter sections as a function of the sensed actual output voltage characteristics compared to the preselected characteristics.  This permits the converter to maintain a nearly full conduction angle, and therefore a high power factor, for any level of output voltage in a range from zero volts to voltage levels higher than the peak input voltage level.
Patent CA-2063218-A1 (CA)
Inventor: RHEIN-KNUDSEN ERIK
IPC: E21B47/08
Filed: 1992-03-17
Abstract: Apparatus and method for measuring density, porosity and other formation characteristics while drilling is dis-closed.  The apparatus, preferably housed in a drill collar and placed within a drill string, includes a source of neu-trons and a source of gamma rays placed within a tubular body which is adapted to provide for the flow of drilling through it.  Two sets of stabilizer blades are provided.  One set, associated with the neutron source, includes secondary radi-ation detectors that are placed radially beyond the nominal outer radius of the body.  Formation porosity measurement accuracy is substantially enhanced since the standoff of the detectors from the formation is substantially decreased.          Another set, associated with the gamma ray source, includes one or more gamma ray detection assemblies in a single blade.          Each of the gamma ray detector assemblies is also placed radially beyond the nominal outer radius of the tubular wall.          Formation density or absorption coefficient accuracy is sub-stantially enhanced since the standoff between the detection assembly and the borehole wall is decreased.  In a particular-ly preferred embodiment, ultrasonic sensors incorporated either or both sets of blades provide a measurement of the borehole diameter and/or standoff of the detectors from the borehole.  The bulk density measurement and neutron porosity measurement data can be corrected with information derived from the standoff or borehole diameter.  All such information is preferably transmitted to surface instrumentation where the corrections are performed, or performed downhole and the corrected data transmitted to the surface.
Patent CA-2063525-A1 (CA)
Inventor: HOKARI MAKOTO
IPC: H04Q3/66
Filed: 1992-03-19
Abstract: ISDN subscriber line interface circuits of a switching system serve customer premises equipment of different information transfer capabilities. Least cost routing data and corresponding digit conversion data are stored in a memory, with the routing data indicating least cost outgoing routes through an ISDN network. These data are retrieved from the memory according to the called party number and information transfer capability field of a call setup message received from a calling party. The called party number is then converted according to the retrieved digit conversion data, and an ISDN trunk circuit is selected according to the retrieved least cost routing data. A connection is established between the originating ISDN SLIC and the selected ISDN trunk circuit, and the converted called party number is transmitted through a signaling channel to the ISDN network.
Patent CA-2063890-A1 (CA)
Title: Mutant aox2 promoter, microorganism carrying same, method of preparation thereof and production of heterologous protein using such microorganism
Inventor: MIURA MASAMI
IPC: C12N15/14
Filed: 1992-03-24
Abstract: An object of the invention is to provide a novel promoter for high-level production of heterologous proteins and a method of obtaining the promoter. Thus, a mutant AOX2 promoter is derived from the natural AOX2 promoter by base sequence deletion, base substitution or insertion. A microbial strain carrying the AOX2 gene under the control of such a mutant AOX2 promoter can be obtained by cultivating a strain incapable of producing AOX encoded by the AOX1 gene but carrying the AOX2 gene under the control of the natural AOX2 promoter in a methanol-containing medium. A heterologous protein can be produced by cultivating the mutant strain with the desired heterologous protein gene incorporated downstream from a promoter. Furthermore, a plasmid carrying the mutant AOX2 promoter is provided. A heterologous protein can be produced by using a transformant obtained by incorporation of such plasmid.
Patent CA-2065128-A1 (CA)
Title: Process for the preparation of phosphorus-containing l-amino acids, their derivatives and intermediates for this process
Inventor: HOFFMANN MICHAEL
IPC: C07F9/30
Filed: 1992-04-03
Abstract: L-amino acids of the formula I and salts thereof, (see formula I) in which:      R1 and R2 independently of each other are hydrogen, (C1-C6) - alkyl, which is unsubstituted or is mono- or polysubstituted by halogen or aryl, or (C3-C10) -cycloalkyl, R3 and R4 independently of each other are hydrogen, (C1-C6) - alkyl, (C2-C6) -alkenyl, (C2-C6) -alkynyl, where the last three radicals mentioned can be straight-chain or branched and can have hetero atoms in the chain, (C1-C6)-alkylcarbonyl, aryl-(C1-C4) -alkylcarbonyl, (C1-C6) -alkoxycarbonyl, (C1-C6) -alkylsulfonyl, benzyl, benzyloxycarbonyl, aryloxycarbonyl or arylsulfonyl, where the last four radicals mentioned are unsubstituted or substituted in the aryl radical, R5 is hydrogen or (C1-C4)-alkyl, which is straight-chain or branched and is unsubstituted or substituted by halogen, aryl or a heterocycle, or (C3-C7)-cycloalkyl and n is 0 or 1, are obtained according to the invention by a) reacting an optically active S-homoserine lactone of the formula II, (see formula II) with hydrogen chloride in the presence of an alcohol of the formula R5-OH to give novel compounds of the formula III, (see formula III) in which R3, R4 and R5 are defined as in formula I, except that R5 = H, and b) reacting the resulting compound of formula III with a compound of formula IV, R1(O)n - R(OR2)2 (IV) and if desired, hydrolyzing the product to give a compound of formula I, in which R5 = H.
Patent CA-2065687-A1 (CA)
Title: Transformer with cancellation of harmonic currents by non-linear loads
Inventor: KAMMETER JOHN B
IPC: H01F27/38
Filed: 1992-04-09
Abstract: ABSTRACT OF THE DISCLOSURE A harmonic current filtering transformer includes a three-phase input winding and at least two wye-connected three-phase output windings. The output windings are phase shifted relative to each other by an amount which causes harmonic currents generated by a non-linear load to magnetically cancel in the transformer core.
Patent CA-2068974-A1 (CA)
Title: Device for automatically washing teats of dairy animals
Inventor: FARINA FELICE
IPC: A01K13/00
Filed: 1992-05-19
Abstract: ABSTRACT OF THE DISCLOSURE A device for  automatically washing and  drying teats of  generic  dairy  animals  comprises  a  portable washing head whereto a teat-cleansing liquid is  supplied through an interspace defined in a flexible member.
Patent CA-2075295-A1 (CA)
Title: Gravel/fertilizer packet for potted plants
Inventor: COSSE IRVY E JR
IPC: A01G27/04
Filed: 1991-12-04
Abstract: An apparatus and method for facilitating the extended infusion of fertilizer and controlled watering of a potted plant, while providing an improved method for preventing the egress of soil through the base of the pot. The present invention teaches in its preferred embodiment a gravel/fertilizer packet (p) comprising a specially formulated fertilizer mixture (8), depending upon the type of plant, suspended in a gravel filtering base (7), the mixture contained in enveloping package (16) comprised of a wicking, fluid permeable material, the package having emanating about its edge periphery a flange or skirt (5) for facilitating the retention and controlled, even distribution of water and fertilizer and drainage of excess water. The present invention provides an easy, cost effective system for preparing a pot planting, a filtering medium for preventing the loss of soil, a wicking medium for fluid nourishment, and a water retention and drainage system.
Patent CA-2076692-A1 (CA)
Inventor: POLAND TERRELL
IPC: G06Q20/20
Filed: 1992-08-24
Abstract: An improved price updating apparatus for use in retail store pricing systems has an input for receiving update data indicative of a product for which a price change is desired and the changed price.  The apparatus looks up records in a database relating to store locations, for locations where the product may be found.  Where the location has an electronic price display device, preferably connected with the apparatus by a serial data link, the changed price is transmitted to the display device by the serial data link.  Where the location has a printed price, the apparatus stores a print job record containing information about the price and the shape and size of the printed price.  A user is later able to select, one by one, the various shapes and sizes of printed prices, and to print all the records intended for printing at the selected shape and size.
Patent CA-2078764-A1 (CA)
Inventor: PELHAM PETER G
IPC: C06B45/00
Filed: 1992-09-21
Abstract: An aircraft-launched pyrotechnic decoy flare for luring an incoming missile away from the aircraft's exhaust which comprises a compactly clustered substantially void free array of discrete pieces of a gassy high intensity infra-red emitting pyrotechnic composition contained in a rupturable air-tight container.  On ignition of the flare, combustion spreads rapidly along the interfaces between the discrete pieces to produce gaseous combustion products.  When the pressure within the air-tight container reaches a predetermined level the container ruptures and the discrete pieces burst apart.  The plurality of pieces have a large combined surface area over which combustion occurs and so produce a high intensity emission of infra-red radiation.  In a preferred embodiment the discrete pieces comprise a mixtured fibrous activated carbon cloth impregnated with a metallic salt and coated with a mixture of an oxidising halogenated polymer, an oxidisable metallic material and an organic binder.
Patent CA-2079098-A1 (CA)
Title: Mildness additives for skin cleansing compositions
Inventor: RANDEN NEIL A
IPC: A61K8/00
Filed: 1991-04-09
Abstract: Skin-cleansing compositions with a mildness additive that is a non-water soluble acrylate polymer that is soluble in poorly hydrogen bonding solvents or solvent blends having a solubility parameter of between about 8.4 and 10.4 (cal/cc)1/2. The polymer comprises monomers of formula (I), wherein R1 is H or an alkyl radical containing 1 to 18 carbon atoms in cyclic, straight- or branched-chain configuration and is saturated or unsaturated; R2 is hydrogen, lower alkyl or -CH2CO2R1; and  R3 is hydrogen, methyl or --CO2R1; provided, that when R2 is not hydrogen, R3 is hydrogen, and when R3 is not hydrogen, R2 is hydrogen.  The incorporation of the indicated polymers reduces the drying and irritating effect of conventional cleansing compositions on the skin.
Patent CA-2080670-A1 (CA)
Title: Uracil derivatives and their use
Inventor: ENOMOTO MASAYUKI
IPC: C07D239/553
Filed: 1992-10-15
Abstract: Abstract of the disclosure:          There is disclosed a 1-phenyl-4-trifluoromethyl-uracil derivative of the general formula:                            wherein R1 is hydrogen or methyl, and R2 is C1-C7 alkyl or C3-C7 cycloalkyl optionally substituted with C1-C3 alkyl.          Also disclosed are a herbicidal composition containing this derivative as an active ingredient and a method for exterminating undesired weeds by application of this herbicidal composition.
Patent CA-2081206-A1 (CA)
Title: Hollow fiber fluid treatment apparatus and membrane oxygenator
Inventor: MATHEWSON WILFRED F
IPC: B01D63/02
Filed: 1991-04-30
Abstract: ABSTRACT OF THE DISCLOSURE A hollow fiber membrane fluid treatment apparatus (32) for the transfer of mass or energy through the membrane is disclosed.  It is designed particularly, but not only, for else in membrane oxygenators.  Hollow fiber membranes (202) extend substantially longitudinally,  first inert fibers (204) are spaced between them and also extend substantially longitudinally.  Second inert fibers (206) extend generally transverse  to  the  hollow  fibers  (202)  and  generally contiguous therewith, so that a first fluid (preferably an oxygen-containing gas) can pass through the hollow fibers (202) and a second fluid (preferably blood) can be passed over their exterior for mass or energy transfer through the membrane.   Usually the second inert fibers (206) form a weft (208) and the first inert fibers (204) are spaced one between each two hollow fibers  (202)  so that the wrap consists of alternating strands of hollow fiber (202) and first inert fiber (204) passing over the weft (208) in an oscillating fashion to define at least in part the size of the fluid film to be passed over the hollow fiber membrane (202)  for mass or energy transfer through the membrane. The  inert  fibers  (204,  206)  are usually biocompatible monofilament polymers which provide precise spacing of the hollow fibers (202) to produce even blood films.  Usually, the apparatus (32) is disposed in a blood passageway (58) of a membrane oxygenator, and layered in ribbons sized to fit the blood channel  (58) with the first inert fibers (204) spacing the hollow fibers (202) so that the hollow fibers (202) are offset with respect to each other from layer to layer.
Patent CA-2087493-A1 (CA)
Inventor: STINE ALAN C
IPC: F16H59/70
Filed: 1993-01-18
Abstract: An auxiliary transmission section (14) shift control system (300)/method is provided which includes control members (246, 328) to prevent auxiliary section synchronized clutch (92, 128) damage if the main transmission section (12) is engaged during an auxiliary section shift. Upon sensing main section engagement during a shift into the auxiliary section high-speed ratio, the force used to engage the high speed ratio is reduced from a first (p*a224) to a considerably lower second (p*(a224-a222)) level.
Patent CA-2088085-A1 (CA)
Inventor: CHILD JONATHAN E
IPC: C01B7/19
Filed: 1993-01-26
Abstract: A method for separating conjunct polymers and sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid is disclosed, which method comprises the sequential steps of separating hydrofluoric acid from the mixture to provide an intermediate stream containing less than 30 percent hydrofluoric acid by weight and gravitationally separating the intermediate stream into a sulfolane-enriched stream and a conjunct polymer-enriched stream.
Patent CA-2088782-A1 (CA)
Title: Polymerization of selected vinyl monomers
Inventor: DRULINER JOE D
IPC: C08F22/36
Filed: 1991-08-01
Abstract: A process for the polymerization of selected acrylic and maleimide monomers by contacting the monomers with a diazotate, cyanate or hyponitrite, and N-chlorosuccinimide, N-bromosuccinimide or a diazonium salt. The polymers produced can themselves initiate further polymerization. Block copolymers can be produced.
Patent CA-2096235-A1 (CA)
Title: Revetements armes de fibres de carbone
Inventor: HAMON RAY C
IPC: B05D7/00
Filed: 1991-12-13
Abstract: On noie des fibres de carbone dans un revêtement en passant d'abord une couche d'un constituant époxy, par exemple, sur un sol ou sur un mur, puis en appliquant des feuilles de fibres de carbone fines, en enlevant éventuellement les fibres de carbone n'adhérant pas au revêtement après son séchage et en appliquant ensuite une ou plusieurs couches supérieures supplémentaires de revêtement pour noyer davantage les fibres de carbone. On obtient un revêtement de sol et/ou de mur électroconducteur et s'utilisant dans un environnement antistatique tel que des salles blanches, des salles d'opération, etc. Lesdits revêtements peuvent être à base d'uréthanes, époxys, alkydes, polyéthylènes, acryliques, vinyles, acétates de vinyle, esters, polyesters, sulfones, polysulfones, silicones, polysilicones ou autres, dans un base de solvant ou en suspension dans de l'eau. Les fibres de carbone préférées sont sous forme de "voiles" ou de "papier", dont la densité est généralement de 2,12 kg/0,84m2 environ (75 oz./square yard).
Patent CA-2096916-A1 (CA)
Title: Piece en superalliage comportant un apport et procede de realisation de l'apport
Inventor: PAGNON CLAUDE A C
IPC: C23C28/00
Filed: 1993-05-25
Abstract: Une pièce (7) en superalliage est revêtue d'un apport réalisé par brasage et constitué de trois couches, une couche externe (2) de composition adaptée aux propriétés spécifiques de surfaces recherchées, une couche interne (4) dont la composition comporte des éléments fondants et une couche intermédiaire (3) obtenue à partir du dépôt d'un mélange des matériaux des deux autres couches (2,4).
Patent CA-2097271-A1 (CA)
Title: Boot manufacturing process
Inventor: DMYTRYSHYN JOSEPH
IPC: A43B3/16
Filed: 1993-05-28
Abstract: Abstract A process for the manufacture of waterproof footwear having a rubber upper and hard, molded outsole wherein the sole is directly molded to the rubber upper, thus producing a permanent, waterproof seal.
Patent CA-2099884-A1 (CA)
Title: Cooling roll
Inventor: REYNOLDS TIMOTHY
IPC: B21B27/08
Filed: 1992-01-03
Abstract: A cooling roll comprises a rotatable arbor (1) with an annular sleeve (7) shrunk onto it. There are internal passages (25) in the sleeve for the flow of liquid coolant there along. The internal passages are in communication with ducts (19, 21) in the arbor and the liquid coolant passed along the passages from the ducts forms a thermal barrier in the sleeve between the outer periphery and the interface.
Patent CA-2100792-A1 (CA)
Inventor: DELLA VALLE FRANCESCO
IPC: A61F2/04
Filed: 1992-02-10
Abstract: 2100792 9213579 PCTABS00014 Medical devices are disclosed comprised of biodegradable guide channels for use in repair and regeneration of nerve tissue. The guide channels are comprised of threads embedded in a matrix and coextruded with active factors wherein both the matrix and the threads are comprised of biocompatible and bioabsorbable esters of hyaluronic acid.
Patent CA-2101306-A1 (CA)
Title: Bipolar electrosurgical forceps
Inventor: RYDELL MARK A
IPC: A61B1/00
Filed: 1993-07-26
Abstract: BIPOLAR ELECTROSURGICAL FORCEPS               ABSTRACT OF THE DISCLOSURE An instrument (10) for cauterizing blood vessels while performing an endoscopic procedure includes a rigid outer tube (11) with a proximal end (15), a distal end (14) and an inner, semi-rigid, tube (12) passing through the outer tube (11)  from its proximal end  (15)  to its distal end (14).   The inner tube (12) has at least one lumen (23) allowing  passage  of  a  pair  of  conductive  leads  (13) therethrough.  The leads (13) terminate at the distal end (16) of the tube (12) in a pair of forceps jaws (26).  The leads (13) are mechanically connected to a scissors-style handle  (1)  and  are  electrically  connected  to  an  RF generator.  The outside diameter of the outer tubular body (11) is sufficiently small that it can readily pass through the working lumen of an endoscope.   Associated with the handle (1) is a knob (3) for rotating the inner tube (12) and  the  conductive  leads  (13).    The  handle  (1)  also contains a means for effecting translational motion of the inner tube (12) within the outer tube (11) and over the forceps (26) and a means for introducing a preset gap to prevent complete closure of the forceps' jaws (26).
Patent CA-2105730-A1 (CA)
Inventor: ILLIG CARL R
IPC: A61K49/04
Filed: 1993-09-08
Abstract: ABSTRACT     Disclosed are x-ray contrast compositions for oral or retrograde examination of the gastrointestinal tract comprising a polymeric material capable of forming a coating on the gastrointestinal tract and an x-ray producing agent of the formula   and methods for their use in diagnostic radiology of the gastrointestinal tract wherein Z = E, halo, C1-C20 alkyl, cycloalkyl, lower alkoxy, cyano, where the alkyl and cycloalkyl groups can be substituted with halogen or halo-lower-alkyl groups; R = C1-C25 alkyl, cycloalkyl, or halo-lower-alkyl, optionally substituted with halo, fluoro-lower-alkyl, aryl, lower-alkoxy, hydroxy, carboxy, lower-alkoxy carbonyl or lower-alkoxy-carbonyloxy, (CR1R2)p - (CR3 = CR4)mQ, or (CR1R2)p - C ? C - Q; R1, R2, R3 and R4 are independently lower-alkyl, optionally substituted with halo; x is 1-4; n is 1-5; m is 1-15; p is 1-10; and Q is H, lower-alkyl, lower-alkenyl, lower-alkynyl, lower-alkylene, aryl, or aryl-lower alkyl in a pharmaceutically acceptable carrier.
Patent CA-2105849-A1 (CA)
Inventor: AIHARA MASAYOSHI
IPC: H04N1/405
Filed: 1993-09-09
Abstract: A recording apparatus according to the invention comprises input means for inputting image data consisting of a plurality of pixels, image-type determination means for determining the type of the image corresponding to the image data, pixel-size determination means for setting the size of each pixel to a desired value in accordance with the image-type determined by the image-type determination means, pixel-form control means for outputting a control signal to form pixels of the size set by the pixel-size determination means, and pixel-forming means for two-dimensionally recording the pixels on the basis of the control signal. The method for recording image data according to the invention includes a first step of inputting image data consisting of a plurality of pixels, a second step of determining the type of the image corresponding to the image data, a third step of setting the size of each pixel of the image to a desired size in accordance with the determined type, a fourth step of forming pixels of the set size, and a fifth step of two-dimensionally recording the pixels on the basis of the pixels formed in the fourth step.
Patent CA-2107119-A1 (CA)
Title: Artificial pancreatic perfusion device with reseedable matrix
Inventor: CHICK WILLIAM L
IPC: A61L27/04
Filed: 1992-03-24
Abstract: A device which serves as an artificial pancreas comprises a hollow fiber (12) which is surrounded by islets of Langerhans (14) enclosed in a housing (22). The islets are suspended in a semi-gel matrix (25) or supporting material that is sufficiently viscous to physically support and maintain location of the islets about the hollow fiber, but sufficiently fluid to enable removal of the islet suspension from the device, followed by reseeding or replacement with fresh islet suspension. The matrix in which the islets are suspended preferably comprises calcium sodium alginate. The semi-gel supporting material also enables long term maintenance of islet cells in in vitro culture.