baber/WOPTO huggingface dataset:
Patent CA-2046202-A1 (CA)
Inventor: BENGSTON JON E
IPC: H05K3/24
Filed: 1991-07-04
Abstract: Conductive copper areas of printed circuits, such as through-holes,  pads and lands,  to which electronic components can thereafter be electrically connected by, e.g., wave soldering,  are provided with a coating of nickel or cobalt, such as by electroless deposition from nickel-or cobalt-boron and nickel-or cobalt-phosphorous plating baths, or entirely or partly electrolytically, followed by a coating of a protective material which protects the nickel or cobalt coating from oxidation prior to the subsequent solder connection operation, is wettable by solder in the subsequent solder connection operation,  and substantially dissolves in the solder in the subsequent solder connection operation without adverse effect on the solder joint between the electronic component and the through-hole, pad or land.   A parti-cular preferred protective material is gold,  such as applied by deposition from immersion or electroless gold plating baths.   The invention renders the so-treated areas readily susceptible to the soldering of components thereat, thereby avoiding the need for hot air solder levelling.
Patent CA-2046704-A1 (CA)
Inventor: FENNEMA ALAN A
IPC: G11B7/125
Filed: 1991-07-10
Abstract: An  optical  disk  recorder  is  capable  of  operating  with diverse types of optical media.   An device initialization procedure  is  repeated  for  each  receipt  of  each  optical medium.  Such procedure includes moving a objective lens to an extreme radial position, defocussing the lens at a most remote  position,  then  calibrating  the  laser  circuits  to ensure that the emission of radiation from the laser will not  inadvertently  destroy  signals  recorded  on  the  just received medium.   Then the medium type  is read from the medium  and  based  upon  the  type  indication,   various additional calibrating procedures are followed and different sources  of  laser  control  values  are  used  for  signal exchanging  operations  between  the  recorder  and  received optical medium.
Patent CA-2048003-A1 (CA)
Title: Tricyclic pyridone derivatives
Inventor: BURNER SERGE
IPC: C07D498/04
Filed: 1991-07-26
Abstract: Abstract The novel pyridone derivatives of the formula                    I     wherein Ra signifies hydrogen or halogen, Rb signifies the group -OR1 or -NR2R3, R1 signifies an unsubstituted lower alkyl group or a lower alkyl group substituted by hydroxy, lower alkoxy, amino, lower alkylamino, di(lower alkyl)-amino, di(lower alkyl)carbamoyl or lower alkoxycarbonyl-amino, R2 signifies hydrogen or a lower alkyl group which is unsubstituted or substituted by hydroxy, lower alkoxy, amino, lower alkylamino, di(lower alkyl)-amino, di(lower alkyl)carbamoyl or lower alkoxycarbonyl-amino and R3 signifies hydrogen or lower alkyl or R2 and R3 together with the nitrogen atom signify a 1-azetidinyl, 1-pyrrolidinyl, 1-piperidinyl, 4-morpholinyl, 4-thiomorpholinyl or 1-piper-azinyl group which is unsubstituted or mono- or disub-stituted by lower alkyl, hydroxy, lower alkoxy, lower hydroxyalkyl, lower alkoxyalkyl or phenyl, B and the carbon atom denoted by .alpha. together signify the group >C.alpha.-S-CH=CH-or >C.alpha.-CR4=CH-CH=CH- and R4 signifies hydrogen, fluorine or chlorine, can be used for the control or prevention of illnesses. In particular, they have muscle relaxant, sedative-hypnotic, anxiolytic and/or anticonvulsive activity and can accordingly be used in the control or prevention of muscle tensions, stress conditions, insomnia, anxiety states and/or convulsions.
Patent CA-2049402-A1 (CA)
Title: Polyester copolymer fiber having enhanced strength dyeability properties
Inventor: RODERIGUEZ JOSEPH A
IPC: D01F6/84
Filed: 1991-08-16
Abstract: POLYESTER COPOLYMER FIBER HAVING ENHANCED STRENGTH  AND DYEABILITY PROPERTIES                       ABSTRACT OF THE INVENTION     The invention is a method of producing a polyester filament which has a superior combination of tensile, dyeability and shrinkage properties.  The method comprises forming a polyester copolymer from a mixture consisting essentially of terephthalic acid (TA) or dimethyl terephthalate (DMT), ethylene glycol, adipic acid, and pentaerythritol wherein the adipic acid is added in an amount of between 1.3 and 3.2 weight percent of the terephthalic acid and pentaerythritol is added in the amount from 175 to 700 ppm by weight of terephthalic acid; forming the filament from the copolymer, drawing the copolymer filament, and heat-setting the drawn filament.  The invention also comprises the enhanced fiber formed by the process having an atmospheric dyeability greater than that of an unenhanced PET produced under identical conditions except for the addition of the adipic acid and pentaerythritol, a modulus of greater than 3.0 g/denier, a tenacity from about 5 to 7 g/denier and a hot air shrinkage of less than 10%.
Patent CA-2049439-A1 (CA)
Title: Optical material
Inventor: DOI TORU
IPC: G11B7/2533
Filed: 1991-08-19
Abstract: An optical material, comprising a resin composed of a polymer constituted of 10 of 95 mol %, based on the polymer, of a first structural unit represented by the formula (I) and 90 to 5 mol %, based on the polymer, of a second structural unit represented by the formula (II), and having a weight-average molecular weight of from 1 x 3 to 5 x 10 6 in polystyrene equivalent:   (see formula 1) The optical material has a Tg value not less than 120°C, a light transmittance value not less than 85 %, and a pencil hardness not lower than H.
Patent CA-2051221-A1 (CA)
Title: Method of manufacturing a bimetal casting and wearing part produced by this method
Inventor: GUERARD NORBERT
IPC: B02C15/04
Filed: 1991-09-12
Abstract: The process consists in casting an insert in a first mould, in arranging the insert thus cast in a second mould and in casting the part in this second mould around the insert, so as to form a mechanical link between the two castings. The wear-resisting part thus cast advantageously comprises an insert with a high resistance to wear, whilst the rest of the part is made from a more ductile material which is resistant to mechanical stresses. Application to grinding rollers and to hammer mill hog plates. <IMAGE>
Patent CA-2052623-A1 (CA)
Title: Two step process for selectively isomerizing olefins in gas streams
Inventor: GAJDA GREGORY J
IPC: C10G50/00
Filed: 1991-10-02
Abstract: "TWO STEP PROCESS FOR SELECTIVELY ISOMERIZING OLEFINS IN GASOLINE STREAMS"                                 ABSTRACT   Olefins in a gasoline boiling range feed stream also containing highly unsaturated hydrocarbons are selectively isomerized by a two step process involving treating the feed stream to reduce the content of highly unsaturated hydrocarbons to form a stable olefinic stream and thereafter contacting the stabilized olefinic stream with an isomerization catalyst containing at least one medium pore molecular sieve at olefin isomerization conditions effective to produce an isomerized product stream having a ratio of branched to unbranched olefins of at least 2:1. The process features yields of C5+ isomerized product and avoids conversion of highly branched paraffins to equilibrium values.
Patent CA-2055611-A1 (CA)
Title: Package
Inventor: GULLAN BRYAN B
IPC: B65D85/78
Filed: 1990-05-25
Abstract: Ice cream packaging apparatus comprises a container (10), which holds the ice cream, and a casing (12) which receives the container (10). The casing (12) is of thermally insulating expanded polystyrene and means (14, 15) is provided for preventing the container (10) from being separated from the casing (12) so that an integral packaging unit is provided.
Patent CA-2057381-A1 (CA)
Title: Method of characterization of an overflown ground from a fm/cw radio altimeter signal
Inventor: HETHUIN SERGE
IPC: G01S13/935
Filed: 1991-12-11
Abstract: The invention proposes a novel method for using the sig-nals provided by an airborne FM/CW radio altimeter, allowing to perform an analysis of the ground overflown by an air-craft for the purpose of, for example, identifying it, or alternatively of recognizing it.     The method of the invention consists in analyzing, in the frequency domain, the shape of the spectrum of the beat signal generated by said radio altimeter to characterize said ground so as to extract from it information relating to the reflectivity of said ground.
Patent CA-2059275-A1 (CA)
Title: Glucan drug delivery system and adjuvant
Inventor: JAMAS SPIROS
IPC: A61K9/50
Filed: 1990-06-14
Abstract: The invention describes a whole .beta.-glucan drug delivery vehicle that non-specifically enhances the immune response, and is safe for human use. A drug is incorporated into a whole .beta.-glucan microparticle, and the combination is administered to an individual. The .beta.-glucan vehicle allows sustained release of the drug component while simultaneously enhancing the effectiveness of the drug by boosting the individual's endogenous immune response.
Patent CA-2063145-A1 (CA)
Inventor: OGATA NAOYA
IPC: C08L21/00
Filed: 1992-03-16
Abstract: Abstract of the Disclosure HIGH MODULUS BLEND OF        POLY(.alpha.-AMINO ACID) IN RUBBERY ELASTOMER     It is frequently desirable to increase the modulus of rubbers which are utilized in a wide variety of applications.  This invention discloses a technique for increasing the modulus of rubbers.  By utilizing this technique, high modulus rubber compositions can be attained without sacrificing other properties, such as elongation and hysteresis.  This invention more specifically relates to a process for preparing a high modulus rubber composition which comprises:  (1) polymerizing at least one N-carboxyl-.alpha.-amino acid anhydride in a polymer cement of a rubbery elastomer under conditions which result in the formation of a rubber cement having the poly(.alpha.-amino acid) dispersed therein; and (2) recovering the high modulus rubber composition from the rubber cement.  The high modulus rubber compositions made by this technique are comprised of at least one rubbery elastomer and at least one poly(.alpha.-amino acid).
Patent CA-2063913-A1 (CA)
Title: Subsoiler having rearwardly disposed soil fracturing structure
Inventor: WILLIAMS ROBERT A
IPC: A01B13/08
Filed: 1992-03-25
Abstract: SUBSOILER HAVING REARWARDLY DISPOSED       SOIL FRACTURING STRUCTURE          Abstract The subsoiler has shank assemblies which are designed to cut a thin, clean slice in the soil without frontal upheaval forces that would cause eruption of the soil in a turbulent manner ahead of the shank line. The soil lifting components at the bottom of the shank are configured to produce generally laminar soil flow over and around their lifting surfaces so that the upwardly and outwardly directed fracturing forces occur behind the leading shank line in a readily controllable manner and without disturbing residue and other materials on top of the ground.  The subsoiling profile at the bottom of the shank may be varied by interchanging variously configured points and caps which are securely but removably secured to the shank.  An alternate embodiment provides adjust-ment of the profile presented to the soil by having a portion of the component angularly vertically adjustable to vary the angle of attack of its lifting surfaces.     (Dkt. 20784)
Patent CA-2063952-A1 (CA)
Title: Monofluorophosphate for calcium carbonate scale control and iron and manganese stabilization
Inventor: BOFFARDI BENNETT P
IPC: C01B25/455
Filed: 1992-03-25
Abstract: TITLE OF THE INVENTION MONOFLUOROPHOSPHATE FOR CALCIUM CARBONATE SCALE CONTROL AND IRON AND MANGANESE STABILIZATION            ABSTRACT OF THE DISCLOSURE    Monofluorophosphate salts, especially sodium monofluorophosphate (Na2P03F), when added to various industrial water systems in concentrations between 0.1 mg/L and 50 mg/L, significantly reduce the amount of calcium carbonate scale which is formed on heat exchange and other metallic surfaces of such systems.    Monofluorophosphate salts, especially sodium monofluorophosphate, when added to various water systems in concentrations between 0.1 mg/L and 50 mg/L also stabilizes soluble manganese ion and its reaction products, i.e., primarily MnO2, in desirable forms and reduced particle sizes.    Monofluorophosphate salts, especially sodium monofluorophosphate, when added to various water system in concentration between 1 mg/L and 500 mg/L also stabilizes soluble iron ion and its reaction products, i.e., primarily Fe203.
Patent CA-2065578-A1 (CA)
Inventor: CARR DAVID W
IPC: H04L29/06
Filed: 1992-04-08
Abstract: A data processing system is described that employs data packets which include at least static and dynamic fields, the static fields containing information that often   remains   constant   during   a   multi-packet communication   interval   and  the   dynamic   fields containing information that changes for each packet. Many  packets  also  include  a  user-data  fields.  A compression  method  is  described  which  comprises: reformatting  each  data  packet  by  associating  its static  fields with a  first packet  region  and  its dynamic  fields  with  a  second  packet  region.   The process then assembles a static table that includes static  information  from  at  least  an  initial  data packet's  first  packet  region.   It  then  identifies static field information in a subsequent data packet's first packet region that is common to the information in  the  static  table.   Such  common  information  is encoded so as to reduce its data length.  The common static information is then replaced in the modified data packet with the encoded common static information and the modified data packet is then transmitted.  A similar  action  occurs  with  respect  to user-data information.  A single dictionary table is created for all packet headers, while separate dictionary tables are  created  for  each  user-data  portion  of  a packet-type experienced in the communication network thereby enabling better compression.
Patent CA-2066731-A1 (CA)
Title: Liquid oral pharmaceutical compositions having anti-inflammatory activity
Inventor: CONTE UBALDO
IPC: A61K9/00
Filed: 1991-07-04
Abstract: Liquid pharmaceutical compositions for the oral topical treatment, containing as the active ingredients non steroidal anti-inflammatory drugs, characterized in that they contain dimethyl isosorbide as the carrier.
Patent CA-2067414-A1 (CA)
Title: Psycho acoustic pseudo stereo foldback system
Inventor: SACKS BILL
IPC: H04S5/00
Filed: 1992-04-28
Abstract: ABSTRACT OF THE DISCLOSURE      This invention teaches a method of mixing sound so that a monophonic common ambience audio channel, derived either from a mix of an entire performance, or from a specially created audio mix, is folded back to an individual performer's earphones together with a foldback of that individual performer's microphone or electronic instrument pickup audio signal. The individual performer's microphone or electronic instrument pickup audio is fed to both of a performer's earphones in polarity, while the ambiance mix is fed, simultaneously with the performer's microphone or electronic instrument pickup mix, to both of a performer's earphones, out of polarity, thereby creating a psycho acoustic pseudo stereo effect so that the performer perceives the monophonic ambiance mix as a wide spacious stereophonic field from behind the performer with no specific ability to place an instrument at a specific place in the field.
Patent CA-2068968-A1 (CA)
Title: Retainer for use in pipe joints
Inventor: SHINOHARA TSUTOMU
IPC: F16L19/03
Filed: 1992-05-19
Abstract: A retainer for use in a pipe joint having a pair of tubular joint members for holding an annular gasket in position between opposed end faces of the joint members. The retainer comprises an end wall por-tion positionable on one side face of the gasket, a cylindrical portion extending from the end wall portion substantially perpendicular thereto for preventing the gasket from moving radially thereof, and an engaging portion provided on the cylindrical portion and engageable with an end portion of one of the joint members. The end wall portion has a cutout for passing the gasket therethrough.
Patent CA-2070799-A1 (CA)
Title: Thioxanthenone antitumor agents
Inventor: MILLER THEODORE C
IPC: A61P35/00
Filed: 1992-06-09
Abstract: 1-[[(Dialkylamino)alkyl]amino]-4-substituted-thioxanthen-9-ones of the formula I      (wherein n is 2 or 3; R1, R2 and R3 are lower alkyl; and R4 is hydrogen, lower alkyl, lower alkoxy or halogen) are disclosed as antitumor agents. Compositions containing the thioxanthenones and methods of treating tumors and cancer in mammals with the thioxanthenones are also disclosed.
Patent CA-2072032-A1 (CA)
Inventor: LYNCH FRANCIS J
IPC: B67D1/04
Filed: 1992-06-23
Abstract: A beverage package has a sealed can 1 containing beer with gas in solution and a headspace 6 containing gas at a pressure greater than atmospheric. An insert 7 in the beer has a secondary chamber 13 containing gas at a pressure greater than atmospheric and which communicates through an aperture 15 with an intermediate chamber 14 having an open end 12 and containing beer 5A. On opening the container, headspace 6 depressurises causing gas to be ejected from chamber 13 through aperture 15 and gas to be evolved from solution in the beer 5A. Such evolution rises through the beer 5A to emerge into the beer 5 above the chamber opening 12 to form a head of froth. The open end 12 of the chamber 14 can be located in the headspace 6.      The wall 9 of the chamber 14 isolates a major part of the beer in the container from having its gas liberated so that such gas can evolve gradually and naturally to provide sparkle in the beer.
Patent CA-2072494-A1 (CA)
Title: Power-fail return loop
Inventor: WICHT PHILIPPE
IPC: G06F11/14
Filed: 1992-06-26
Abstract: Abstract A computerized system is of the type that responds to imminent loss of power by storing crucial data to a safe storage area.  In the system, lockup caused by the system entering a tight loop awaiting power loss, is avoided by a combination of stored program and hardware.  A test performed in the tight loop checks repeatedly to see whether the power-failure signal comes no longer to be present, and if that condition occurs the stored program causes the meter to return to normal function.  As a consequence momentary power losses and other brief interruptions, whether due to user manipulation of the power switch or otherwise, are much less likely to result in undesired lockup of the system.
Patent CA-2074859-A1 (CA)
Title: Naphtha reforming catalyst and catalyst supports
Inventor: DURANTE VINCENT A
IPC: C07C61/00
Filed: 1992-07-29
Abstract: ABSTRACT      Supports for catalytic reforming catalysts are prepared by doping ZrO2 with tantalum.  The catalyst may contain a Group VII or Group VIII metal and/or an acidic component.            JEH12-88021.sa
Patent CA-2076089-A1 (CA)
Inventor: DAVENPORT JOHN M
IPC: F21V14/00
Filed: 1992-08-13
Abstract: A projection headlamp lighting system includes a light source to generate light, a light distributing arrangement to distribute the light to a preselected lighting position, and a light projecting arrangement at the lighting position to project the light in the desired pattern. The light distributing arrangement includes a plurality of elongated optical light conductors being of different diameter sizes and having respective input and output ends. The light projecting arrangement includes a housing for holding the output ends of the optical light conductors in an array to project a desired light pattern that is substantially tailored to optimally fit a vehicle's field of illumination with minimal obstruction of the projected light.
Patent CA-2076394-A1 (CA)
Title: Transportation container for laboratory animals
Inventor: DE MARCO PETER F
IPC: A01K1/02
Filed: 1991-02-22
Abstract: A container made up of a smooth, seamless, synthetic resin tube with air permeable end caps which removably fasten to each end, used for transporting animals. A holder made of corrugated paper with aligned holes on opposite panels through which the containers are inserted and held.
Patent CA-2077136-A1 (CA)
Title: Alkyl (meth)acrylate-maleic anhydride copolymer-modified bitumen
Inventor: OMEIS JUERGEN
IPC: C08L95/00
Filed: 1992-08-28
Abstract: ABSTRACT OF THE DISCLOSURE    The present invention provides a polymer-modified bitumeniferous composition containing polymer components in the amount of 0.5-50 wt.%, wherein 20-100 wt.% of the polymeric additive is a copolymer comprises of units of: C6-C28-alkyl (meth)acrylates in the amount of 80-99.9 wt.%, maleic anhydride in the amount of 0.1-20 wt.%, and other polymerizable compounds in the amount of 0-19.9 wt.%.  The polymer-modified bitumens exhibit excellent and persistent homogeneity, high elastic resilience, and a good range of plasticity.
Patent CA-2077462-A1 (CA)
Title: Method for advanced material characterization by laser induced eddy current imaging
Inventor: CHERN ENGMIN J
IPC: G01N27/90
Filed: 1992-09-03
Abstract: GSC 13,386-1 CHERN                            ABSTRACT    An improved NDE method utilizes a laser source with modulator and scanning mirror, a pancake shape eddy current detecting coil, a  lock-in  amplifier,  a  system  controller,  and  an  impedance gain/phase analyzer.  The laser is directed by the scanning mirror to a specimen to be analyzed.  A very localized or small area of the specimen is impacted directly by the laser beam creating a thermal and stress wave in the specimen.  An impedance gain/phase analyzer is connected to the eddy current detecting coil and to a lock-in amplifier through the system controller.   The lock-in amplifier is also synchronized to the laser modulator.  The system controller is used to control the lock-in amplifier,  scanning mirror, and to process data from the analyzer.  Raster scanning of the laser beam across the specimen allows the detection by the coil of the laser generated thermal and elastic strains induced in the specimen by the  laser.   The  rastering of the laser beam  is controlled by the controller by positioning the mirror.
Patent CA-2078950-A1 (CA)
Title: Derivation and use of motion vectors in a differential pulse code modulation system
Inventor: LYNCH WILLIAM E
IPC: H04N7/32
Filed: 1992-09-23
Abstract: ABSTRACT           A differential pulse code modulation system having bidirectional motion estimation for blocks in B frames that is derived from the motion vector of a block in an anchor frame whose projection along its motion vector has the most overlap with the block in the B frame for which a motion estimation is sought.
Patent CA-2080775-A1 (CA)
Title: Silicone pressure sensitive adhesives having enhanced adhesion to low energy substrates
Inventor: SCHMIDT RANDALL G
IPC: C09J183/08
Filed: 1992-10-16
Abstract: SILICONE PRESSURE SENSITIVE ADHESIVES HAVING ENHANCED ADHESION TO LOW ENERGY SUBSTRATES                            ABSTRACT           There is disclosed a pressure-sensitive adhesive composition based on a silicone resin and a polydiorgano-siloxane polymer wherein the resin component has a number average molecular weight of about 950 to 1,600 and consists essentially of triorganosiloxy (M) units and silicate (Q) units wherein the molar ratio M/Q is in the range 1.1/1 to 1.4/1, inclusive.  The adhesives of the invention exhibit improved adhesion to low energy substrates such as poly-ethylene and polytetrafluoroethylene.
Patent CA-2081773-A1 (CA)
Inventor: GRENOBLE DANE C
IPC: C10G47/34
Filed: 1991-05-01
Abstract: Procédé de production d'oléfines gazeuses consistant à introduire un courant d'une charge d'alimentation d'hydrocarbure dans une zone de craquage thermique à haute température afin de produire un courant de produits craqués à haute température, à refroidir le courant de produits craqués afin de stopper les réactions de craquage, à injecter au moins un DDH (diluant donneur d'hydrogène) dans le courant de produits craqués au niveau ou en aval du point auquel la réaction est refroidie, à récupérer normalement des oléfines gazeuses du courant de produits craqués, et à récupérer un courant de produits liquides présentant une teneur en asphaltène diminuée.