baber/WOPTO huggingface dataset:
Patent CA-2040565-A1 (CA)
Title: Sea marker for emergency flights of ship planes on to ships
Inventor: KRAMER DANIEL
IPC: B64F1/20
Filed: 1991-04-16
Abstract: ABSTRACT OF THE DISCLOSURE        The present invention provides a sea marker for emergency flights of ship planes on to ships, comprising a float, as well as a tube containing a pyrotechnical charge and also a percussion igniter, wherein the tube consists of a material which does not burn away, the tube being provided with a light charge consisting of 30 to 60% by weight of sodium nitrate, 3 to 18% by weight of polyolefin resin and 30 to 60% by weight of magnesium.
Patent CA-2042610-A1 (CA)
Title: Dynamic packet routing network
Inventor: FRANK STEVEN J
IPC: H04L12/46
Filed: 1991-05-09
Abstract: A digital data communications apparatus includes first and second processing groups, each made up of a plurality of processing cells interconnected by an associated bus. An element (RRC) transfers information packets generated by the processing cells between the first and second processing groups. The RRC includes an input for receiving packets from the bus of the first processing group, as well as first and second outputs for outputting packets to the buses of the first and second groups, respectively. A control element routes packets received at the input to a selected one of the outputs based upon a prior history of routings of the datum referenced in that information packet (or requests for that data) between said first and second processing groups. --
Patent CA-2044115-A1 (CA)
Title: Method for the quantitative determination of dna sequences
Inventor: CERUTTI PETER A
IPC: C12Q1/6853
Filed: 1991-06-07
Abstract: Method for the Quantitative Determination of DNA Sequences A method for the quantitative determination of DNA sequences containing at least one mutationally eliminated restriction site is disclosed in which the DNA sequences to be quantitatively determined are selectively amplified continuously eliminating any residual wild-type DNA sequences.
Patent CA-2044562-A1 (CA)
Inventor: ZILBERFARB YOSSI
IPC: H04B15/00
Filed: 1991-06-13
Abstract: Method and apparatus for immediately identifying the presence and the source of interference in a communications system. A separate identification code is superimposed on each signal transmitted from a separate transmitter. At any receive, if an undesired signal causes interference, it can be identified via its associated identification code.
Patent CA-2045702-A1 (CA)
Title: Production of paper and paperboard
Inventor: DERRICK ARTHUR P
IPC: D21H23/16
Filed: 1991-06-26
Abstract: The fines retention or drainage properties of mechanical pulps in the paper making process are improved by including in the thin stock, not after the last point of high shear, particles of a water-dispersible colloid siliceous material such as a bentonite clay in intimate association with a low molecular weight water soluble high anionic charge density polymer, such as polyacrylic acid having a molecular weight below 50,000 and a charge density of at least 4 m eq/g and further including in the thin stock, after the last point of high shear, a non-ionic high molecular weight polyelectrolyte such as polyacrylamide having a molecular weight of at least 100,000.
Patent CA-2049379-A1 (CA)
Title: Electromagnetic induction heater capable of realizing a wide variety of heating rates
Inventor: INOKUMA MASATOMI
IPC: H05B6/06
Filed: 1991-08-16
Abstract: Abstract of the Disclosure:         In an electromagnetic induction heater for use in heating, by electromagnetic induction, a strip which is transported in a predetermined direction, a plurality of coil elements are selectively supplied from a power source or sources with currents under control of a power controller.  The power controller has a plurality of relays which are selectively operable under control of a relay control circuit and which have contacts connected to the coil elements.  With this structure, the coil elements are selectively energized to locally generate magnetic fields, which serves to realize a wide variety of heating rates.
Patent CA-2049548-A1 (CA)
Title: Lps-producing bacteria, lpss, and lps-containing medicines and veterinary medicines
Inventor: SOMA GEN-ICHIRO
IPC: A61K35/74
Filed: 1991-08-20
Abstract: Novel LPS having the following physical properties, novel bacilli providing those LPS, and novel immunity stimulators, analgesics, and antiwithdrawal agents, and novel veterinary immunity stimulators, analgesics, and antiwithdrawal agents containing LPS selected from the group consisting of those LPSs and mixtures thereof.      LPS1 Dominant molecular weight: 5,000 ~ 1,000 as determined by SDS-PAGE method Phosphorus number: 2 ~ 1 / 5,000 (m. w.) Hexosamine number: 9 ~ 1 / 5,000 (m. w.) KDO number:        2 ~ 1 / 5,000 (m. w.) LPS2 Dominant molecular weight: 6,500 ~ 2,500 as determined by SDS-PAGE method Phosphorus number:    1  to 2 / 5,000  (m. w.) Hexosamine number:    7  ~ 1 / 5,000   (m. w.) KDO number:           1  to 2 / 5,000   (m. w.) LPS3 Dominant molecular weight:  6,500 ~ 2,500 as determined by SDS -PAGE method Phosphorus number:    2 ~ 1 / 5,000 (m.w.) Hexosamine number:    5 ~ 1 / 5,000(m. w.) KDO number:     2 ~ 1 / 5,000 (m. w.)
Patent CA-2050196-A1 (CA)
Title: Stable polyvinyl alcohol hydrogel contact lens and preparation thereof
Inventor: JANSSEN ROBERT A
IPC: G02B1/04
Filed: 1991-08-29
Abstract: Stable Polyvinyl Alcohol Hydrogel Contact Lens and Preparation thereof Abstract of the Disclosure A dimensionally stable hydrogel contact lens of polyvinyl alcohol having an equilibrium water content of between about 70 and about 80 weight percent, based upon the total swollen lens weight, said lens having been annealed in a mold essentially conforming to the contact lens dimensions under substantially ambient non-drying setting conditions in the presence of an aqueous-organic annealing promoter solvent, for a period of time substantially sufficient to reach annealing equilibrium.
Patent CA-2050787-A1 (CA)
IPC: E03D5/01
Filed: 1991-09-06
Abstract: ABSTRACT OF THE INVENTION           A  low  water  flush  toilet  having  a  bowl  with  a horizontal ledge extending around the bowl periphery near its open upper end with a flush water nozzle on the ledge for discharging water in a generally horizontal direction onto the ledge.  A pulsator is provided for producing pulses of flush water that are discharged onto the ledge with the water of each pulse flowing at varying velocities such that as the water flows around the ledge, some of the water will fall off the ledge around substantially the entire periphery of the bowl resulting in wetting of the entire bowl surface for cleaning the bowl.  The pulsator includes a spring biased piston for discharging pulses of water.
Patent CA-2054326-A1 (CA)
Title: Process and apparatus for fiber production by internal centrifugation and application of same for fiber production of certain glasses
Inventor: BERNARD JEAN-LUC
IPC: C03B37/08
Filed: 1991-10-28
Abstract: Techniques for making fibres by internal centrifuging of glasses of high melting point, such as basaltic glasses. 
<??>According to the invention the fibre production is obtained by maintaining a temperature gradient between the inner and outer walls of the peripheral band of the centrifuge. The invention also relates to a device for making fibres in which the peripheral band is made of a material which has a thermal conductivity lower than 20 W m<-1>  DEG C<-1> at 1000 DEG C. 
<??>Application to the production of fibres from glasses whose working range is less than 100 DEG C in width. 
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Patent CA-2054554-A1 (CA)
Title: Coated abrasive having an overcoating of an epoxy resin coatable from water and a grinding aid
Inventor: LEE CHONG S
IPC: C09K3/14
Filed: 1991-10-30
Abstract: ABSTRACT OF THE DISCLOSURE            This invention relates to a coated abrasive product having an overcoating, in particular an overcoating formed from an epoxy resin.  Coated abrasive products comprise a backing having abrasive grains bonded thereto by one or more binders.  These binders typically comprise a glutinous or resinous adhesive, and may optionally contain one or more additives.  Examples of resinous adhesives include epoxy resins, phenolic resins, urethane resins, acrylate resins, and aminoplast resins.  The binders previously referred to are typically applied by coating from an organic solvent In recent years, however, there has been a need to coat these resins exclusively from water on account of increasingly stringent pollution legislation.  This invention provides a coated abrasive product having a coating comprising a composition formed from an epoxy resin that is capable of being coated from water, a curing agent, and a grinding aid dispersed in the epoxy resin.  It is preferred that the coat containing the epoxy resin and the grinding aid be the outermost coat of the coated abrasive product, e.g., the size coat or supersize coat, in order to position the grinding aid in direct contact with the workpiece being abraded.
Patent CA-2054770-A1 (CA)
Title: Process and device for transmitting teletext data
Inventor: MOLL GERHARD
IPC: H04N7/087
Filed: 1990-05-03
Abstract: A b s t r a c t In order to compatibly transmit teletext data in the form of special characters, fine textures and color hues at higher WST levels, complementary data in the form of one or more associated complementary pages are transmitted for each page of teletext by the broadcaster in addition to the basic teletext data of conventionally structured teletext pages (level 1).  The complementary data for some or all teletext pages are transmitted preferably in at least one complementary page.  In the receiver, the complementary page(s) associated with a selected teletext page are temporarily stored separately from the corresponding teletext page (9) and processed so that the characters associated with the basic data are displayed in those character positions where there is no complementary data present.  The characters associated with the basic data in cooperation with the complementary data are displayed in those character positions where complementary data is present.
Patent CA-2059428-A1 (CA)
Title: Recovery of nickel from uranium containing ore
Inventor: LAM EDMOND K
IPC: C22B3/44
Filed: 1992-01-14
Abstract: Nickel is found in substantial quantities in some uranium-containing ores.  Recovery of uranium from such ores by the known acid leaching process includes a solvent extraction stage that leaves an aqueous raffinate containing nickel, together with other components including iron, arsenic, radium 226 and uranium.  Attempts have been made to recover nickel from this raffinate but have not been successful because the costs of recovery are so high that the process is uneconomic or because the nickel obtained is contaminated with radium 226 and uranium to such a degree that the nickel is unacceptable.  The present invention provides a process for obtaining from the raffinate a solution of a nickel salt that is not unacceptably contaminated with radium 226 and uranium.  The process is economic and in a preferred embodiment uses only air, lime and a barium salt, preferably barium chloride, as reagents.  If cobalt is also present in the ore it is recovered with the nickel.
Patent CA-2059694-A1 (CA)
Inventor: HERRICK TODD W
IPC: B23Q1/52
Filed: 1992-01-20
Abstract: ABSTRACT    A method and apparatus for machining a matched set of fixed and orbiting scroll members for use in a scroll compressor.  The respective wrap surfaces of the scroll members are simultaneously machined by respective rotating cutting tools.  Specifically, rotational and linear movement of the fixed and orbiting scroll members together, synchronized with linear movement of the cutting tools, causes the simultaneous machining of the scroll members along respective wrap surfaces that form a radially inwardly moving sealing line of contact therebetween during compressor operation. Accordingly, any systemic or random deviation from a true involute form during machining of the matched scroll member set results in complementary deviations in the respective wrap surfaces, whereby a sealed relationship between the wrap surfaces is maintained at such point of deviation during compressor operation.
Patent CA-2063902-A1 (CA)
Title: Cardiac defibrillator
Inventor: MORGAN CARLTON B
IPC: A61N1/39
Filed: 1992-03-24
Abstract: CARDIAC DEFIBRILLATOR                 ABSTRACT OF THE DISCLOSURE Disclosed is a cardiac defibrillator for providing a cardiac defibrillation pulse to a patient. The defibrillator comprises a switch contact (14) mounted on a movable switch (10) that moves between a charge position and a discharge position. In the charge position, the switch contact is coupled to a high-voltage battery (22) in order to provide a charge to an energy storage capacitor (30). When the movable switch is released from the charge position, the switch contactengages an electrode contact (32) and a defibrillation pulse flows into a patient (40). The duration of the cardiac defibrillation pulse can be varied by changing the length of time that the switch contact remains engaged with electrode contact. Also disposed within the switch contact path is a discharge contact (42), which is connected to a discharge resistor (48). When the movable switch is in a discharge position, the switch contact is engaged with the discharge contact thereby allowing the discharge resistor to dissipate charge from the energy storage capacitor. A spring (16) is connected to the movable switch in order to rotate it between the charge and discharge positions.     RCT:klp
Patent CA-2067862-A1 (CA)
Title: Stable pura vectors and uses thereof
Inventor: BREY ROBERT N III
IPC: A61P31/04
Filed: 1992-05-01
Abstract: This invention pertains to a complementation system for the selection and maintenance of expressed genes in bacterial hosts. The invention provides stable vectors which can be selected and maintained by complementation of chromosomal deletion mutations of purA (adenylosuc-cinate synthetase), obviating the use of antibiotic resistance genes. This system is useful in production organisms during fermentation and in live vaccine bacteria, such as attenuated Salmonella typhi. This system allows for selection of chromosomal integrants and for selection and stable plasmid maintenance in the vaccinated host without application of external selection pressure.
Patent CA-2068676-A1 (CA)
Title: Procede de dicarbonylation lineaire de butenes difonctionnalises
Inventor: HUSER MARC
IPC: C07C67/37
Filed: 1992-05-14
Abstract: La présente invention concerne un procédé de dicarbonylation linéaire de butènes difonctionnalisés.  Par dicarbonylation linéaire on entend  la  formation majoritaire de  l'acide hexène-3 dioïque-1,6 et/ou ses diesters alkyliques,  par réaction du monoxyde de carbone, le cas échéant d'un alcool, sur au moins un butène disubstitué par des groupes hydroxy, alcoxy ou alcyloxy.  L'invention a pour objet un procédé de dicarbonylation linéaire de butènes difonctionnalisés en présence  d'une  quantité  catalytiquement  efficace  de palladium et d'un chlorure d'onium quaternaire d'un élément du groupe VB choisi parmi l'azote et le phosphore, ledit élément  étant  tétracoordonné  à  des  atomes  de carbone, l'azote pouvant être coordonné à 2 atomes de phosphore pentavalent, en phase liquide, à une température comprise entre 50°C et 180°C et sous une  pression  supérieure  à  la  pression  atmosphérique, caractérisé en ce que a) le palladium est engagé au moins partiellement sous forme de palladium à l'état d'oxydation nul et b) la réaction est conduite également en présence d'au moins une source de chlorure d'hydrogène.
Patent CA-2074872-A1 (CA)
Title: Use of fluorinated polyurethanes for the treatment of films or sheets made of cellulose, graphite, mica, kaolin, leather and similar natural materials
Inventor: TONELLI CLAUDIO
IPC: C04B41/83
Filed: 1992-07-29
Abstract: A class of cross-linked fluorinated polyurethanes, which can be used for protecting and reinforcing coatings on films, sheets, laminates and similar thin structures made of cellu-lose, graphite, mica, kaolin, leather etc. as well as for adhesive and reinforcing material in multy-layer structures made of films, sheets, laminates and similar thin structures made of graphite, mica, kaolin, etc. These polyurethanes can be obtained starting from the following components: (A) a polyisocyanate consisting of a perfluoropolyether chain bound to the -NCO terminal groups through an aromatic or cycloaliphatic radical; and (B) a polyol consisting of a perfluoropolyether chain bound to the -OH terminal groups through an aromatic or cycloaliphatic radical.
Patent CA-2075129-A1 (CA)
Title: Collection device for gaseous emissions
Inventor: GABRYSZEWSKI GREGORY J
IPC: B08B15/00
Filed: 1992-07-31
Abstract: COLLECTION DEVICE FOR GASEOUS EMISSIONS Abstract of the Disclosure A collection device (10)  for gaseous emis-sions which comprises a collector body (20) having a hollow interior (33) and an inner wall (22) shaped to conform to a portion of the outer periphery of the open top  (14)  of a material supply container  (12).          The  inner wall  is  formed with  a  number  of  inlet openings  (40,  42)  communicating with the collector body interior which are spacea from one another in a direction from one end of the collector body to the other.  A deflector member or strake (46) is mounted to the inner wall of the collector body in the areas between adjacent inlet openings therein, and lips are mounted at the top (34) and bottom (35) of the collec-tor body which extends outwardly therefrom substan-tially perpendicular to the inner wall of the collec-tor body.
Patent CA-2075871-A1 (CA)
Inventor: GARCIA PASTOR DANIEL
IPC: D21B1/34
Filed: 1992-08-12
Abstract: ABSTRACT    The vessel (1) containing the bales of waste paper or pulp is of a spiral shape with a flat bottom, with the rotor (2) located in the centre of the spiral.     Impurities and foreign bodies are driven towards an Archimedes screw (3) located at the outlet from the spiral, which removes them to the exterior.  In this final pass this is washed by spray nozzles to recover the carried-over pulp.
Patent CA-2076587-A1 (CA)
Inventor: KITAOKA HIDEAKI
IPC: A61F13/56
Filed: 1992-08-21
Abstract: Disposable   training   pants    improved    for effectively making babies wearing the training pants aware of their own excretions.  There are provided on a topsheet of the pants  a moistness holding sheet having  floating zones serving as moistness sensor means.
Patent CA-2077365-A1 (CA)
Inventor: HIGASHI KAZUHIKO
IPC: B41J11/42
Filed: 1992-09-02
Abstract: A thermal printer comprises memory means for storing an amount of correction to cancel variations in an amount of paper feed caused by previously determined uneven paper feed, first calculation means for calculating an uneven paper feed in each of  lines  to  be  printed,  second  calculation  means  for calculating an amount of correction corresponding to the uneven paper feed calculated by the first calculation means; and means for controlling an amount of the paper feed in each of the lines according to the amount of correction calculated by the second calculation means.
Patent CA-2077388-A1 (CA)
Inventor: ADOLPHI JOHN
IPC: G03B15/06
Filed: 1992-09-02
Abstract: Apparatus for displaying one of several backdrops for use in a photographic studio. The backdrop scenes are attached end to end to form a long web, one end of which is wound upon one shaft and the other end of which is attached to a second shaft. A roller weight is placed on the web between the two shafts. The shafts are motor driven, allowing automated scrolling of the different backdrop scenes and the lowering of the roller weight when the appropriate scene is found. A steering mechanism is attached to the web to ensure it is properly wound up upon the shaft each time. Optical and/or mechanical sensors detect the position of the web and a central processing unit is provided for automated movement of the web from one backdrop to another, as desired.
Patent CA-2085855-A1 (CA)
Inventor: LAWSON DAVID F
IPC: C08L9/00
Filed: 1992-12-18
Abstract: A terminally functionalized polymer is prepared by reacting a living polymer obtained by anionic polymerization of a dime monomer or mixture of a diene monomer and a vinyl aromatic. hydrocarbon monomer with a fused-ring polynuclear aromatic compound. The resultant terminally functionalized polymers have reduced hysteresis in the carbon black reinforced and cured state and can be utilized to form elastomer compositions for tire treads having reduced rolling resistance.
Patent CA-2086386-A1 (CA)
Inventor: DALY DANIEL F
IPC: G06F13/362
Filed: 1992-12-29
Abstract: An interface chip is capable of receiving requests from two processors and coordinating the flow of the data therebetween.  The chip functions as a dual port controller for interaction of associated RAMs and processors of a voice processing system.  A plurality of interfaces of the instant invention can be placed in communication with a host computer (PC) of a voice processing system that determines the priority of requests that are received from units of the system.  The interface circuits are in communication with the host computer for the purpose of accepting requests in sequence and outputting data over a bus.  The host computer is in communication with a RAM interface of each chip that interfaces local peripheral board processor through a dual port RAM which resides on the peripheral board.  The interface chip contains the circuitry that creates communication with the resident RAM.
Patent CA-2087286-A1 (CA)
Title: Thioether conjugates
Inventor: WILLNER DAVID
IPC: A61K47/48
Filed: 1993-01-14
Abstract: Provided are drug/ligand compounds of Formula (I): (see formula one) in which D is a drug moiety; n is an integer from 1 to 10; p is an integer from 1 to 6;      Y is O or NH2+Cl-; z is 0 or 1; q is about 1 to about 10;      X is a ligand; and, A is a Michael Addition Adduct.      In a preferred embodiment, the ligand is an immunoglobulin, preferably a chimeric antibody or fragment thereof. Also provided are formulations comprising as an active ingredient a compound of Formula (I), intermediates useful for preparing the compounds of Formula (I), processes for preparing the compounds of Formula (I), and methods for using the compounds of the invention.
Patent CA-2088847-A1 (CA)
Inventor: RODGERS MICHAEL B
IPC: C08F236/10
Filed: 1993-02-04
Abstract: The subject invention discloses a styrene-isoprene-butadiene rubber which is particularly valuable for use in making truck tire treads, said rubber being comprised of repeat units which are derived from about 5 weight percent to about 20 weight percent styrene, from about 7 weight percent to about '35 weight percent isoprene, and from about 55 weight percent to about 38 weight percent 1,3-butadiene, wherein the repeat units derived from styrene, isoprene and 1,3-butadiene are in essentially random order, wherein from about 25% to about 40% of the repeat units derived from the 1,3-butadiene are of the cis-microstructure, wherein from about 40% to about 60% of the repeat units derived from the 1,3-butadiene are of the traps-microstructure, wherein from about 5% to about 25% of the repeat units derived from the 1,3-butadiene are of the vinyl-microstructure, wherein from about 75% to about 90% of the repeat units derived from the isoprene are of the 1,4-microstructure, wherein from about 10% to about 25% of the repeat units derived from the isoprene are of the 3;4-microstructure, wherein the rubber has a glass transition temperature which is within the range of about -90°C to about -70°C, wherein the rubber has a number average molecular weight which is within the range of about 150,000 to about 400,000, wherein the rubber has a weight average molecular weight of about 300;000 to about 800,000, and wherein the rubber has an inhomogeneity which is within the range of about 0.5 to about 1.5.