baber/WOPTO huggingface dataset:
Patent CA-1122793-A (CA)
Title: Oxyalkylated sulfonate in aqueous  alkaline solution for oil recovery
Inventor: PARK JACK H
IPC: E21B43/22
Filed: 1979-10-03
Granted: 1982-05-04
Abstract: OXYALKYLATED SULFONATE IN AQUEOUS ALKALINE SOLUTION       FOR OIL RECOVERY  (D#74,033-1-F) ABSTRACT OF THE DISCLOSURE         A process for recovering hydrocarbons from a subterranean hydrocarbon-bearing formation by injecting into the formation via an injection well an aqueous alkaline flooding medium such as water, steam, etc. containing a small amount of a sulfonated, oxyalkylated interfacial tension reducer, forcing the said flooding medium through the formation and recovering hydrocarbons via a production well.                                  -I-
Patent CA-1088346-A (CA)
Inventor: WEST ROGER A
IPC: G01K7/22
Filed: 1979-10-10
Granted: 1980-10-28
Abstract: Abstract A probe having a temperature sensor mounted in its tip for measuring the temperature of a body into which the probe is inserted, has a heating coil positioned on the shank of the probe near the tip, and a second temp-erature sensor in the tip area positioned generally be-tween the coil and the first sensor.  A control circuit is operative to energize the heater coil in response to differences in the temperature sensed by the two sensors, so that the shank of the probe is heated to track the temp-erature rise of the tip of the probe upon insertion into a body whose temperature is to be measured.  This heat servo thermally isolates the tip from the remainder of the probe, and eliminates long thermal time constants which would otherwise be associated with the flow of heat from the tip area down the probe shank.  The time response of the system is then limited only by the tip area of the probe, which is made of high heat conductivity materials and is in intimate thermal contact with the body whose temperature is to be measured.  Read-out of the sensed temperature is accomplished by circuitry connected to the tip sensor.
Patent CA-1141020-A (CA)
Inventor: SAPIEHA SLAWOMIR W
IPC: H01G7/02
Filed: 1979-10-19
Granted: 1983-02-08
Abstract: ABSTRACT OF THE DISCLOSURE           This invention relates to devices having electrets. The invention provides the improvement wherein the electret of the device, comprises a film of a plasma polymerized dielectric material having a volumetric space charge, which is generally uniform in the space charge.
Patent CA-1144479-A (CA)
Inventor: VOSS GUNTHER M
IPC: A61J3/00
Filed: 1979-11-15
Granted: 1983-04-12
Abstract: ABSTRACT         A method of preparing solid pharmaceuticals is disclosed comprising dotting an active substance in liquid, dissolved or suspended form in a specific quantity in the form of discrete droplets of specific volume onto a pharmaceutical carrier.
Patent CA-1149497-A (CA)
Inventor: KRESSEL HENRY
IPC: H01L31/0304
Filed: 1979-11-21
Granted: 1983-07-05
Abstract: RCA 73,182 III-V QUATERNARY ALLOY PHOTODIODE                         Abstract A III-V quaternary alloy photodiode comprises an n-type III-V binary alloy body; a III-V quaternary alloy layer chosen to have about the same lattice constant as that of said body grown on a major surface of said body; an electrically insulating layer grown on said quaternary alloy layer and having an opening therein extending through said second layer; a p-type layer of the same III-V binary alloy as said body, grown on said quaternary alloy layer in the area contiguous with the opening in said electrically insulating layer; a p-type region in said quaternary alloy layer in the region contiguous with the opening in said electrically insulating layer; and electrically conducting layers overlying a portion of said p-type binary alloy layer and of a second major surface of said body to provide electrical contact to the photodiode.  The III-V quaternary alloy layer may be of n-type conductivity, electrically insulating, or have n-type and electrically insulating regions.
Patent CA-1081326-A (CA)
Inventor: WEISSER EUGENE P
IPC: G01N27/42
Filed: 1979-11-27
Granted: 1980-07-08
Abstract: MONITORING SUSPENSION STABILITY           ABSTRACT OF THE DISCLOSURE          A Method for detecting impending failure of suspension during an aqueous suspension polymerization has been developed by continuous monitoring of the electrical conductivity of the suspension system.  A sudden drop in conductance warns of failure of suspension in time to save the suspension by the addition of suspension stabili-zers.  A special conductivity cell has been developed to allow measurement of conductance during the course of the polymerization reaction.
Patent CA-1133809-A (CA)
Inventor: KNECHTEL HERBERT E
IPC: C23C8/26
Filed: 1979-12-21
Granted: 1982-10-19
Abstract: ABSTRACT               METHOD OF NITRIDING STEEL          Method of nitriding steel surfaces by circulating thereover a ternary mixture of ammonia, hydrogen and water at an elevated temperature and atmospheric pressure.  Most of the harmful effects of HCN formation are avoided by utilizing a furnace lining consisting of a coated nickel base alloy, and by adding from 1 to 3% water to the nitriding gas and flowing the nitriding gas at a rate as low as 1.5 to 6.1 ml per hour per cm2 of steel surface area.
Patent CA-1094504-A (CA)
Inventor: DAVIS THOMAS A
IPC: C02F1/461
Filed: 1979-12-28
Granted: 1981-01-27
Abstract: ELECTRICALLY REGENERATED ION EXCHANGE SYSTEM            Abstract The electrical efficiency of an electrically regenerated ion exchange system is improved by using elongated ion exchange members having a continuous ion exchange phase that is more conductive in the exhausted form than it is in the regenerated form.  Preferably, the system includes anion exchange members that extend through the wall of the demineralization compartment closest to the anode but do not extend through the wall of the demineralization compartment closest to the cathode, and cation exchange members that extend through the wall of the demineralization compartment closest to the cathode but do not extend through the wall of the demineralization compartment closest to the anode.
Patent CA-1145690-A (CA)
Inventor: OTA AKIHO
IPC: B65D1/02
Filed: 1980-01-04
Granted: 1983-05-03
Abstract: ABSTRACT OF THE DISCLOSURE     A bottle-shaped container of saturated polyester having frosted or ground surface is manufactured by the steps of heating the outer layer portion of the preformed piece injection-molded to thereby crystallize the outer layer portion to opacify in white, and blow-molding the preformed piece in a blowing mold having at least partial inner surface formed with rough surface sandblasted in advance to thereby form the rough surface on the bottle-shaped container on the crystallized outer layer portion surface.  Thus, the bottle-shaped container incorporates pearl-like ground surface as desired in shape on the surface instead of glossy surface peculiar for synthetic resin.
Patent CA-1132680-A (CA)
Inventor: MILES GREGORY M
IPC: F23N5/20
Filed: 1980-02-29
Granted: 1982-09-28
Abstract: ABSTRACT OF THE DISCLOSURE        A flame responsive control circuit means has been disclosed which responds to the flame in a burner.  The response is to the sudden rate of change of the resistance or impedance of a photocell upon the loss of flame.  The two embodiments disclosed both utilize a rate of change sensing means to deter-mine that a loss of flame has occurred.  If a loss occurs, ignition is reinstituted immediately and the system either operates normally or locks itself out in a safety shut down.
Patent CA-1129309-A (CA)
Inventor: BELL GEORGE E
IPC: B21F1/06
Filed: 1980-03-25
Granted: 1982-08-10
Abstract: WIRE KNOTTING MACHINE                     ABSTRACT      A machine operable to twist the end portion of a cross wire around a longitudinal wire disposed at right angles to the cross wire, and then to twist the cross wire end portion about the standing portion of the cross wire, to form a "knot".  The machine consists of a knotter die rotatable about the axis of the longitudinal wire to form the first twist, and to force the end por-tion of the cross wire operatively against an anvil configurated to form the second twist so that both twists are formed in a single operation, although the two twists lie in substantially right angled planes.          This substantially doubles the speed at which the knots may be formed in automatic machinery.  As optional equip-ment, other dies may be added for pressing the wire bend formed in the second twist, and the raw end of the cross wire, closely adjacent the longitudinal wire, so that the raw wire ends are shielded.  This knot "finisher" operation is performed at a station different from that at which the knot is initially formed, so that in an automatic machine, the finishing operation does not reduce the production rate.
Patent CA-1119835-A (CA)
Inventor: ROSEN JULIUS S
IPC: G01N21/03
Filed: 1980-04-02
Granted: 1982-03-16
Abstract: DISPOSABLE BLOOD CHAMBER                       Abstract of the Disclosure A two piece disposable blood chamber having registration means and a locking clip to prevent disassembly for sterilization is disclosed.
Patent CA-1142535-A (CA)
Title: Substituted carbanilic acid esters,  processes for the manufacture of these  compounds and herbicidal preparations  containing them
Inventor: ARNDT FRIEDRICH
IPC: C07C269/04
Filed: 1980-04-03
Granted: 1983-03-08
Abstract: ABSTRACT OF THE DISCLOSURE           The invention provides a compound of the general formula   in which R1 represents a (C1-C6)-alkyl, (C2-C6)-alkenyl or (C2-C6)-alkynyl radical, a chlorinated (C1-C6)-alkyl radical or a phenyl-(C1-C5)-alkyl radical, R2 represents a hydrogen or chlorine atom, R3 represents a hydrogen or a (C1-C6)-alkyl radical, R4 represents a hydrogen atom, a (C1-C6)-alkyl radi-cal or an unsubstituted or substituted phenyl radical, R5 represents a halogen atom, and R6 represents a hydrogen or halogen atom.  These compounds have good selective herbicidal action and can be used for selectively combating weeds in useful crop plants, such as wheat, barley, oats, rye, potatoes and rice.
Patent CA-1130538-A (CA)
Title: Control of thiosulfate in wet desulfurization process solutions
Inventor: CASTRANTAS HARRY M
IPC: C01B17/05
Filed: 1980-04-14
Granted: 1982-08-31
Abstract: d ABSTRACT: CONTROL OF THIOSULFATE IN WET DESULFURIZATION PROCESS SOLUTIONS A method for controlling the concentration of dis-solved thiosulfate byproduct which forms in a wet desulfuri-zation process, by introducing a peroxygen chemical into its recirculating aqueous absorption medium. A peroxy-gen chemical such as aqueous hydrogen peroxide is intro-duced into the recirculating aqueous alkaline absorption medium, preferably after its regeneration, in an amount sufficient to maintain the concentration of thiosulfate byproduct below a saturation concentration. The method is applicable to cyclic wet desulfurization processes, used to recover elemental sulfur from H2S-containing gas streams, in which the absorption medium contains a regen-erable oxidizing agent and is subject to thiosulfate by-product buildup.
Patent CA-1159934-A (CA)
Inventor: KRAJEWSKI ZDZISTAW A A
IPC: G01S3/58
Filed: 1980-05-15
Granted: 1984-01-03
Abstract: ABSTRACT         Radio direction finders using the principle of periodic scanning of a circular array inherently display a bearing error related to the group delay through the receiving, detection and evaluation process. Correcting by subtracting a constant .THETA.0 is simple but it is difficult to keep .THETA.0 constant.  The present invention cancels the group delay error instead of compensating for it with a predetermined constant.  Scanning is done at angular velocities .omega.1 and .omega.2 for m turns and n turns respectively.  The parameters are related by the formulae                               ... (1) n - m = 1                          ... (2) Group delay errors are cancelled by computing the true bearing from the formula n.THETA.2 - m.THETA.1 = .THETA. where .THETA.1 and .THETA.2 are the bearing readings at .omega.1 and .omega.2 respectively and .THETA. is the true bearing of the radio target.
Patent CA-1142966-A (CA)
Inventor: KLINE RICHARD H
IPC: C07C37/16
Filed: 1980-08-06
Granted: 1983-03-15
Abstract: ABSTRACT    ALKYLATION OF 2,6-DI-TERT-ALKYLPHENOLS WITH ALKANEDIOLS     There is a process disclosed for alkylating the nucleus of a phenol, said process comprising reacting an ?, .omega.alkanediol containing from 3 to 8 carbon atoms with a phenol having an unsubstituted nuclear position para to the phenolic hydroxyl group; said phenol being selected from the group of alkylated phenols having tertiary alkyl groups of 4 to 8 carbon atoms in both positions ortho to the phenolic hydroxyl group, in the presence of an alkali metal hydroxide or alkoxide or alkali metal at a temperature from 200 to 300°C. while continuously removing the water by-product as it forms and obtaining as a product said phenol having a primary hydroxy terminated alkyl group of 3 to 8 carbon atoms in said para position.
Patent CA-1153754-A (CA)
Inventor: SHAW WILFRID G
IPC: C07C47/22
Filed: 1980-08-11
Granted: 1983-09-13
Abstract: (5173) ATTRITION RESISTANT-HIGHER ACTIVE COMPONENT              FLUID BED CATALYSTS                 ABSTRACT A method for preparing attrition resistant, high percentage active component catalysts comprises using two types of silica, one of which is fumed silica, in a two stage catalyst preparation.
Patent CA-1125780-A (CA)
Inventor: LEWIS RICHARD N
IPC: C07F7/08
Filed: 1980-09-15
Granted: 1982-06-15
Abstract: ABSTRACT OF THE DISCLOSURE         A process for preparing alpha, omega-diacyloxysiloxanes of the formula P'COO(R2SiO)nOCR'9 in which at least 50 percent of the R groups are methyl and the remaining R groups are selected from the class consisting of vinyl and phenyl groups, R' is a hydrocarbon radical having from 1 to 3 carbon atoms, and n has an average value of from 3 to 25, is provided herein.  The process includes the step of heating cy  ic and/or linear siloxane with an acid anhydride in the presence of a carboxylic acid and of acid clay for at least 1 hour until equilibration occurs at a temperature of 120°C. - 150°C.  The diacyloxysiloxanes are useful, since they maybe hydrolyzed to the siloxanediol by heating with an aqueous solution of a weak base having a pH of from 8 to 11 to a temperature of at least 50°C.  The siloxanediols so formed are effective anti-structive agents (scftenev fluids) for silicone rubber.
Patent CA-1154609-A (CA)
Inventor: FRUENGEL FRANK
IPC: G01N21/53
Filed: 1980-09-29
Granted: 1983-10-04
Abstract: ABSTRACT OF THE DISCLOSURE         A discharge lamp with high intensity and high local stability is disclosed, which is suitable for use as a light source in a visibility meter.  A light receiver also suitable for use in a visibility meter is disclosed.  The discharge lamp has a discrete anode chamber and a discrete cathode chamber which are both filled with gas and which are interconnected via a capillary tube.  One end of the capillary tube is adjacent a cathode located within the cathode chamber, while the other end of the capillary tube projects forwardly of a region in which the anode is adjacent the capillary tube.  Plasma is confined within the capillary tube, resulting in a high local stability and high intensity light output.  The light receiver utilizes a photo-sensitive element and an electrical filter which is so designed that response of the light receiver is calibrated to include or coincide with that portion of the visible light spectrum which carries maximum energy.
Patent CA-1159085-A (CA)
Inventor: GROSS MAX
IPC: C07C53/50
Filed: 1980-10-23
Granted: 1983-12-20
Abstract: PROCESS FOR THE PRODUCTION OF  ? -CHLOROACETOACETIC ACID CHLORIDE  .                 ABSTRACT OF THIS INVENTION     A process for the production of ?-chloroacetoacetic acid chloride by reaction of chlorine and diketene. A solution of chlorine dissolved in an inert solvent and a solution of diketene dissolved in an inert solvent are introduced simultaneously in a continuous current into a tube reactor in such a way that the two solvents immediately mix homogeneously and a turbulent flow develops.  The mole ratio of chlorine to diketene is between 0.9 to 1 and 1.2 to 1.  The same inert solvent can be used for both the chlorine and diketene.  Preferably a chlorinated hydrocarbon is used as the inert solvent.  Preferably both the diketene and chlorine are each used in the form of a 1 to 15 percent by weight solution.  Preferably a temperature which lies belows the boiling point of the solvent is maintained in the reaction tube.
Patent CA-1143760-A (CA)
Inventor: ARIEL GIDEON B
IPC: A63B21/00
Filed: 1980-11-06
Granted: 1983-03-29
Abstract: ABSTRACT OF THE DISCLOSURE        An exerciser bar is supported for rotation and acts against an hydraulic cylinder with the angle of the bar and the pressure in the cylinder measured and fed to a micro computer which, using this input data, controls the cylinder pressure in accordance with a selected exercise program, the micro computer also providing outputs to displays so that the person exercising can monitor his progress.
Patent CA-1141999-A (CA)
Inventor: LACEY PATRICK J
IPC: F16B13/06
Filed: 1981-01-29
Granted: 1983-03-01
Abstract: - ABSTRACT OF DISCLOSURE -An expanding assembly to be inserted into and set within a preformed hole having a cylindrical portion extending inwardly from a wall surface and having a conical portion flared at a predetermined angle and located at a predetermined distance from the wall surface, the anchor assembly having a stud bolt carrying a cone at its inner end and being tensionable in the hole to displace the cone in the conical hole portion toward the mouth of the hole, the assembly having a sleeve surrounding the stud bold and extending through the cylindrical hole portion into the conical portion to contact the cone, the sleeve being slotted to provide expanding legs which are longer than the conical hole portion, and the cone being almost as large in diameter as the cylindrical portion and being flared at an angle which is somewhat greater than said predetermined angle of the conical hole portion.
Patent CA-1164402-A (CA)
Inventor: HALL DAVID A
IPC: C07D501/04
Filed: 1981-03-18
Granted: 1984-03-27
Abstract: ABSTRACT OF THE DISCLOSURE           An electrolytic process for removing the p-nitrobenzyl (pNB) ester protecting group from a cephalosporin 4-carboxylic acid pNB ester is described herein.  The pNB ester is electrolytically reduced in an acidic liquid medium containing 0 - 50% water, an acid having a pKa (determined in water) of 0 or below, the amount of said acid being at least 4 moles per mole of compound to be reduced, and an organic solvent substantially inert to electrolytic reduction, at the working electrode of an electrolytic cell, at a temperature from about 0°C to about 75°C, and at a potential ranging from about the potential of the initial onset of current flow at which a first reduction takes place to about the potential of the initial onset of current flow at which a second reduction takes place.  The working electrode may be made of carbon, mercury, tin, aluminum, silver, copper, lead, chromium, zinc, nickel or cadmium, and preferably is of mercury, silver or lead.
Patent CA-1148194-A (CA)
Inventor: WEBER KURT
IPC: G12B9/10
Filed: 1981-04-24
Granted: 1983-06-14
Abstract: ABSTRACT   A dashboard for motor vehicles, which consists of a carrier which is a framework of rots joined to one another with a mineral fibre mat extending over the rods and the spaces between them, a polyurethane foam over the mat and carrier forming a backing to a deep drawn plastic foil which forms the fascia  of the dashboard.  The foil may be given a surface grain effect.  The mineral fibres can be of glass with every 20 to 30 fibres worked into threads which are then laid up to form the mat as a non-woven fabric of random orientation.
Patent CA-1162270-A (CA)
Inventor: MCMULLEN CARL R
IPC: B22C19/04
Filed: 1981-05-04
Granted: 1984-02-14
Abstract: ABSTRACT OF THE DISCLOSURE           A sand moisture control system for a sand casting foundry system incorporates non contact sensing techniques for controlling the moisture content of foundry sand by the addition of water at the muller or mixing operation of a sand casting system.  The temperature of the foundry return sand is measured by an infrared detector while moisture content is measured by a microwave detector along the conveyor feed input to the Muller or at the return sand holding tank.          Electrical outputs from each detector corresponding to temperature and moisture are integrated to provide a signal corresponding to the % of moisture deviation from a predetermined value and this signal is utilized to control the amount of water added to the Muller.
Patent CA-1192683-A (CA)
Inventor: CURRIER RICHARD G
IPC: H02K7/02
Filed: 1981-07-15
Granted: 1985-08-27
Abstract: ABSTRACT A motor drive system for a mining shovel in-cludes three a.c. motors which are driven by associated inverter circuits that receive power from a common d.c. bus.  The d.c. bus connects to the a.c. power lines through a rectifier circuit and large variations in power occur during various portions of the digging cycle.  To limit the peak power demanded during a digging cycle a peak power limiter system comprised of a fourth inverter driven a.c. motor is attached to the d.c. bus.  This a.c. motor drives a flywheel which is operated to store energy during periods of low power demand and which is operated to regenerate stored energy to the d.c. bus when power demanded from the a.c. power lines exceeds a preset amount.
Patent CA-1166603-A (CA)
Inventor: DAS GUPTA SANKAR
IPC: C02F1/46
Filed: 1981-08-26
Granted: 1984-05-01
Abstract: ABSTRACT OF THE DISCLOSURE           An electrode is provided for use in treating waste water containing metallic species.  The electrode permits plating in the cathodic mode and stripping in the anodic mode.  The electrode includes a material, preferably titanium, which exhibits a sudden change in electrical characteristics after stripping and this change can be used to sense the end of stripping thereby minimizing attack on the electrode.  A reactor and method are also disclosed.
Patent CA-1169470-A (CA)
Inventor: BRUNINX-POESEN LEONIE M J
IPC: H01J61/12
Filed: 1981-10-01
Granted: 1984-06-19
Abstract: ABSTRACT: "High-pressure mercury vapour discharge lamp."     High-pressure mercury vapour discharge lamp con-taining rare gas, mercury, sodium halide and at least one halide of at least one of the rare earth metals Ce, Pr, Nd and Lu. The lamp is suitable for a nominal power in the range from 10 to 2000 W. The molar ratio of rare earth metal to sodium, Ln : Na, has a value from 1 : 20 to 1 : 1 and the quantity of mercury, A, has a value from 2 to 100 mg/cm3. Ln : Na and A have in these ranges a low value for lamps having a high value of the power, and higher values according as the nominal power of the lamp has a-lower value. Figure 2.
Patent CA-1167427-A (CA)
Title: Procede et installation pour l'alimentation en  capsules d'une machine de bouchage
Inventor: SCHEIDEGGER ALBERT
IPC: B67B3/04
Filed: 1981-11-13
Granted: 1984-05-15
Abstract: L'invention concerne un procédé et une installation d'alimentation en capsules fragiles d'une machine de bouchage fonctionnant à cadence élevée. Des capsules fragiles ne peuvent être stockées en vrac ni manipulées brutalement sans être détérioriées. Ces capsules sont fabriquées sur place dans plusieurs cellules fonctionnant en parallèle puis alimentées à la machine de bouchage par un convoyeur unique qui conserve leur orientation. Des détecteurs disposes sur des couloirs inclines intermédiaires commandent le débit des cellules et du convoyeur pour assurer à tout instant l'alimentation de la machine même lorsqu'une cellule est arrêtée pour entretien. Cette invention trouvera sa principale application dans le bouchage de bouteilles par des capsules fragiles à languette de préhension.