baber/WOPTO huggingface dataset:
Patent CA-1182515-A (CA)
Title: Digital programmed controller for multi-mode  brushless electric motor
Inventor: LANGLEY LAWRENCE W
IPC: H02P6/08
Filed: 1983-10-28
Granted: 1985-02-12
Abstract: ABSTRACT             The specification describes an electromechanical energy conversion system comprising a brushless motor having a rotor and a stator having a plurality of energizeable windings.  Sensors are associated with the motor for sensing the relative position of the rotor and stator and for producing electrical signals indicative thereof.  A switching circuit is connected to the windings for controlling the flow of current therethrough.          Power measuring means produce an electrical signal indicative of the power delivered by the motor.  Control means are connected to the sensors  the switching circuitry and the power measuring means.  The control means comprises a current modulator for producing a current command signal having a variable duty cycle and a logic array for controlling the switching circuitry so as to maximize the power delivered by the motor.  The disclosure also describes a method for controlling the conversion of energy by the aforementioned electromechanical system.
Patent CA-1196348-A (CA)
Inventor: WESTIMAYER DAVID A
IPC: E01H5/04
Filed: 1983-11-04
Granted: 1985-11-05
Abstract: SKID SHOE MOUNTING ARRANGEMENT FOR SNOW BLOWER                   Abstract of the Disclosure A skid shoe mounting arrangement detachably mounted to the side of the snow blower auger housing such that the skid shoe mounting assembly can be easily reassembled to a plurality of preset heights relative to said auger housing.
Patent CA-1225064-A (CA)
Inventor: TOMASZEWSKI LILLIE C
IPC: C25D3/38
Filed: 1984-01-03
Granted: 1987-08-04
Abstract: ABSTRACT OF THE DISCLOSURE          A cyanide-free electrolyte and process for depositing a ductile, fine-grained, adherent copper plate usually of a thickness of about 0.015 to about 5 mils on ferrous-base, copper-base, zinc-base and the like conductive substrates.  The electrolyte contains controlled effective amounts of cupric ions complexed with an organo-phosphonate chelating agent, an alkali carbonate as a bath stabilizing and buffering agent, hydroxyl ions to provide a pH on the alkaline side and preferably, a wetting agent.  The copper plate is applied by electrolyzing the aforementioned electrolyte employing a combination of a bath soluble copper anode and an insoluble ferrite anode to provide a copper to ferrite anode surface area ratio within a range of about 1:2 to about 1:6.          The invention further includes a process for depositing a ductile, fine-grained adherent copper plate on a conductive substrate employing an electrolyte containing controlled effective amounts of cupric ions, a complexing agent for the cupric ions, a bath stabilizing and buffering agent, and hydroxyl and/or hydrogen ions to provide a pH from about 6 to about 10.5 and electrolyzing the aforementioned electrolyte employing a combination of a bath soluble copper anode and an insoluble nickel-iron alloy anode containing about 10 percent to about 40 percent by weight iron and about 0.005 to about 0.06 percent sulfur to provide a copper anode area to nickel-iron alloy anode surface area ratio within a range of about 1:2 to about 4:1.  The invention further contemplates a novel nickel-iron alloy anode for use in the practice of the disclosed process.
Patent CA-1210850-A (CA)
Inventor: YEO DAVID E
IPC: E21B47/18
Filed: 1984-01-04
Granted: 1986-09-02
Abstract: Detection Means for Mud Pulse Telemetry System By: David E. Yeo Abstract of the Disclosure Information is conveyed from a downhole location within a wellbore being drilled by producing pressure and velocity of flow variations from the steady state drilling fluid pressure and velocity of flow so as to set up transient acoustic waves that propagate to the surface through the drilling fluid within the drill string. The acoustic waves are detected at the surface to obtain the propagated information. According to this invention, a simple and reliable method of recovering the propagated information is to monitor the pressure of the gas filled side of the accumulator or desurger device that is coupled to the drilling fluid line adjacent the pump.
Patent CA-1221594-A (CA)
Inventor: BERNIER CLAUDE BOULEVARD MONT-
IPC: F24B15/10
Filed: 1984-01-05
Granted: 1987-05-12
Abstract: ABSTRACT OF THE DISCLOSURE:         Fireplace tongs comprising a pair of levers connected to one another between their respective ends by means of a first pivot in the manner of scissors, this first pivot defining on one side thereof operating arms and on the other side thereof extensions of the operating arms.  One of the extensions constitutes a first jaw for the tongs while a second jaw, similar to the first jaw, is pivotally mounted at one of its ends to the end of the other extension away from the first pivot.  A connecting link is provided of which the ends are pivotally mounted on the jaws respectively on one side and on the other side of the first and of the second pivot and adjacent thereto, whereby closing in of the arms causes tightening of the jaws and, alternatively, spreading apart of the operating arms causes loosening of the jaws.
Patent CA-1177489-A (CA)
Inventor: ANDREWS GLENN C
IPC: C07D407/04
Filed: 1984-01-18
Granted: 1984-11-06
Abstract: ABSTRACT OF THE DISCLOSURE  .         5,6-Anhydro-L-ascorbic acid, 5,6-anhydro-D-erythorbic acid and salts thereof are disclosed.  Such compounds are useful intermediates in the preparation of 6-deoxy-6-substituted-L-ascorbic acid and 6-deoxy-6-substituted-D-erythorbic acid, which are useful as antioxidants;
Patent CA-1210246-A (CA)
Inventor: MYERS RONALD T
IPC: C03B7/14
Filed: 1984-01-20
Granted: 1986-08-26
Abstract: ABSTRACT OF THE DISCLOSURE         An improved method is provided for the lubrica-tion of molds and delivery equipment which are employed in the production of glass articles wherein the viscous glass which is employed in the production of such articles is at least partially coated with a suitable lubricant prior to contact with the delivery equipment and/or prior to entry of the glass into the mold.
Patent CA-1230845-A (CA)
Inventor: LINDNER HORST
IPC: C25F3/24
Filed: 1984-02-02
Granted: 1987-12-29
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention relates to a process for treat-ing sodium-nitrate-containing electrolytes in the electro-chemical cleaning of surfaces of iron-containing workpieces.  By adding an oxidizing agent, particularly ozone, an increased formation of nitrite in the electrolyte and associates therewith a premature passivation of the workpiece surface during the electrochemical cleaning operation are avoided.  An apparatus for oxidizing the electrolyte comprises a treatment station which has an ozone producer and a reactor and is present in the electrolyte cycle comprising an electrochemical treatment sta-tion in which the surfaces of the workpieces are electrochemi-cally cleaned, a storage tank for which the electrolyte passes to said electrochemical treatment station, a sludge separator which separates sludge from the electrolyte passing from said electrochemical treatment station and for which the electrolyte passes to the storage tank and at least one pump for conveying the electrolyte in the cycle.
Patent CA-1244684-A (CA)
Title: Fastening assembly having a novel wing nut  construction
Inventor: ROBERTS MARK T
IPC: B01D46/48
Filed: 1984-02-08
Granted: 1988-11-15
Abstract: ABSTRACT OF THE DISCLOSURE         An improved fastening assembly having application for securing a filter element within an air cleaner and incorporating a novel wing nut construction.  As used with an air cleaner, the wing nut is engaged with a large diameter threaded portion of a connecting bolt and acts to secure a filter element within an air cleaner housing, while an outer knob is engaged with a smaller diameter threaded section of the bolt and bears against a cover to secure the cover to a housing.  The wing nut is provided with an inner threaded metal section which is molded within an outer plastic wing section.  The inner nut portion includes a plastic ring having an inner diameter slightly less than the thread on the nut and serves to seal against the thread on the bolt and prevent leakage of air along the threaded connection, as well as preventing the loosening of the threaded connection due to vibra-tion.  In addition, the nut is provided with an enlarged base, which bears against the cap, and a cylindrical shank that pro-jects through the opening in the cap and prevents direct connect between the threaded bolt and the cap.
Patent CA-1206631-A (CA)
Inventor: MILLOT JEAN-PAUL
IPC: G21C3/32
Filed: 1984-02-08
Granted: 1986-06-24
Abstract: A nuclear fuel assembly has fuel rods connected to the lower end plate of the assembly. The connecting structure comprises an attachment plate which is superimposed on the lower end plate and which is formed with openings corresponding to the rods. The openings lead out into parallel grooves machined on the lower surface of the plate. Each rod comprises a lower part having three radial branches at 120 DEG , each formed with an end extension projecting radially outwardly from the outline of the rod. The extensions engaged in a groove have a height substantially equal to the depth of the groove. Axial fixing and locking against rotation of the rods are thus ensured.
Patent CA-1212980-A (CA)
Inventor: YAMAZAKI HITOSHI
IPC: H01J61/34
Filed: 1984-03-01
Granted: 1986-10-21
Abstract: ABSTRACT OF DISCLOSURE    A low pressure discharge lamp of double tube structure comprises an outer bulb containing therein a sealed gas and having one end closed and at least one inner tube supported by an end plate to communicate with the interior of the outer bulb; receiving therein electrodes and restricting an electric dischargeing path.          The ends receiving therein the electrodes of the inner tube are bonded with an adhesive on the surface on the side facing the outer bulb of the end plate and a part of each end other than said ends of said inner tube is in contact to and supported by the end plate. The construction makes bonding operations of the inner tube to the end plate easy and provide a stable condition to the inner tube in an lamp assemblage and reduces lamp weight.
Patent CA-1223263-A (CA)
Title: Phenoxytriazolyl ketones and carbinols, a process for   their preparation and their use as fungicides
Inventor: KRAATZ UDO
IPC: C07D521/00
Filed: 1984-04-27
Granted: 1987-06-23
Abstract: Phenoxytriazolyl ketones and carbinols, a process for their preparation and their use as fungicides Abstract Phenoxytriazolyl ketones and carbinols of the formula   in which A represents the keto group or the CH(OH) grouping and R represents hydrogen, alkenyl, alkinyl, halogeno-alkyl, halogenoalkenyl, alkylcarbonyl, optionally substituted benzyl or optionally substituted phen-oxymethyl, or addition products thereof with acids or metal salts, which possess fungicidal activity.
Patent CA-1204124-A (CA)
Inventor: PEDJAC JOSEPH J
IPC: C07C41/00
Filed: 1984-05-01
Granted: 1986-05-06
Abstract: ABSTRACT OF THE DISCLOSURE         Prepare high purity decabromodiphenyl ether, by adding diphenyl ether or partially brominated diphenyl ether to a mixture comprising an organic solvent, a catalyst, and a brominating agent at a low initial addition temperature, and then raising the temperature to a higher reaction temperature.
Patent CA-1210717-A (CA)
Inventor: LANTERO ORESTE J JR
IPC: C12N11/10
Filed: 1984-05-11
Granted: 1986-09-02
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed is a method for the immobilization of an enzyme producing microorganism or an enzyme pro-duced thereby. The method involves flocculating the biocatalyst with polyethylenimine and adding chitosan and glutaraldehyde to form a reaction product. In a preferred embodiment, the reaction product is ex-truded onto the revolving plate of a spheronizing device to form spherical enzyme aggregates having enhanced physical and biocatalytic properties.
Patent CA-1207891-A (CA)
Inventor: CRAIG GLENN D
IPC: G02F1/13
Filed: 1984-05-23
Granted: 1986-07-15
Abstract: WIDE DYNAMIC RANGE VIDEO CAMERA                         ABSTRACT      A television camera apparatus wherein bright objects are attenuated to fit within the dynamic range of the system while dim objects are not receives linearly polarized light from an object scene, the light being passed by a beam-splitter and focused on the output plane of a liquid crystal light valve oriented such that, with no excitation from a cathode ray tube, all light is rotated 90° and focused on the input plane of a video sensor.  The light is then converted to an electrical signal, which is amplified and used to excite the CRT.  The resulting image is collected and focused onto the light valve, which rotates the polari-zation vector of each light increment to an extent proportional to the light intensity from the CRT.  The over-all effect is to selectively attenuate the image pattern focused on the sensor.
Patent CA-1234899-A (CA)
Inventor: GOLDSTEIN MARK K
IPC: F23N1/02
Filed: 1984-07-25
Granted: 1988-04-05
Abstract: PHOTOVOLTAIC SAFETY CONTROL SYSTEM            Abstract of the Disclosure An apparatus (1) is disclosed for controlling oxidation of a fuel in an oxidation source (2,3).  The apparatus includes photovoltaic means (5) for receiving electromagnetic radiation (6) from the oxidation source and for producing electric power having a given electric power magnitude.  An oxidation control (8, 1A, 1B, 288, 325) is coupled to, and driven by, the photovoltaic means for controlling the oxidation. The oxidation is adjusted when the electric power is less than the given electric power magnitude.  Oxida-tion may also be adjusted when a hazardous gas is detected.  The apparatus (1A) may be used to power various electronic circuits.  The apparatus (1B) may also be used to maintain the efficiency of the combus-tion source.  A novel arrangement (248) for operating a fuel control valve is also disclosed.  An apparatus (418) for controlling a portable heater is also disclosed.
Patent CA-1232849-A (CA)
Inventor: WEIL GARY J
IPC: C12N15/00
Filed: 1984-11-05
Granted: 1988-02-16
Abstract: Abstract of the Disclosure Novel hybrid cell lines are disclosed for providing monoclonal antibodies to circulating parasite antigens present in the blood of animals infected with the nematode parasite Dirofilaria immitis.  Such circulating parasite antigens are also characterized and identified.  Further disclosed are methods employed to produce and select such hybrid cell lines and diagnostically useful assay methods utilizing the mono-clonal antibodies in the detection of such specific circulat-ing parasite antigens in blood or bodily fluids.
Patent CA-1229044-A (CA)
Inventor: VON BITTERA MIKLOS
IPC: A61L15/24
Filed: 1984-12-21
Granted: 1987-11-10
Abstract: Active compound release systems ABSTRACT      In a therapeutic system such as a plaster for administration of an active compound through the skin and comprising a covering layer which is essentially impermeable to the active compound, an active compound reservoir layer and a protective layer which can be pulled off and which is essentially impermeable to the active compound, the improvement wherein the reservoir layer contains about 1 -30% of active compound in an elastomer mixture comprising a diene rubber which can optionally be copolymerised with an ?-olefin, mixed with from 0 up to about 70% by weight of a polyisobutylene, polybutadiene oil and/or paraffin oil, and a tackifying resin.  Thereby the active compound can be released in regulated relatively large quantity over a prolonged period of time.
Patent CA-1238158-A (CA)
Inventor: RAIS JOHN
IPC: B65D23/10
Filed: 1985-01-15
Granted: 1988-06-21
Abstract: ABSTRACT        A reusable handle for manipulating a plastic soft drink bottle.  The handle has a hook-like projection on one end adapted to clamp to the neck of the bottle and a prong at its opposite end insertable between a cup-like base and the exterior annular wall of the bottle to secure the handle to the bottle.  The intermediate portion of the handle between the hook-like projection and prong comprises an elongated strap of a rigidified cross-section running adjacent to and along toe exterior wall of the bottle. The central portion of the strap is provided with a loop defining a finger grip so that the handle and bottle can be lifted and manipulated to pour the contents of the bottle.
Patent CA-1235760-A (CA)
Inventor: SUZUKI HIDEO
IPC: H04L27/14
Filed: 1985-03-01
Granted: 1988-04-26
Abstract: Abstract of the Disclosure A digital signal processor for performing phase or frequency signal processes, for example, demodulating processes of modulation signals such as PSK signals.  This processor is provided with amplitude-to-phase converting means which receives two digital input signal series that are respectively expressed by a plurality of bits and that have a quadrature phase relation with each other, and which outputs the digital phase information signal corre-sponding to a combination of the digital values of those input signal series, this combination being amplitude information.  This processor then supplies the phase in-formation signal which is outputted from the amplitude-to-phase converting means to signal processing means, thereby digitally processing the phase information signal.
Patent CA-1232261-A (CA)
Inventor: RYAN ROBERT C
IPC: B01J23/85
Filed: 1985-03-08
Granted: 1988-02-02
Abstract: A B S T R A C T               PROCESS FOR THE PREPARATION OF IMPROVED HYDROCONVERSION CATALYSTS AND           CATALYSTS THUS PREPARED      Process for preparing supported hydroconversion catalysts having improved hydrodenitriflcation activity containing catalytically active amounts of Group VIII and/or Group VIB metals incorporated on a support, and particularly those containing nickel and molybdenum on alumina, which comprises adding from about 0.5 to 15 %wt of molybdenum and/or tungsten carbonyls to said catalysts by sublimation at elevated temperature and drying and calcining said metal carbonyl impregnated catalysts.
Patent CA-1264254-A (CA)
Inventor: ANKUM ROBERT H
IPC: A01C7/04
Filed: 1985-03-08
Granted: 1990-01-09
Abstract: SEED METER HAVING SEED DISK APERTURE CLEANING WIPER AND BRUSH ARRANGEMENT      Abstract of the Disclosure In a seed meter in which individual seeds from a seed mass within a first chamber on a first side of a seed disk rotatably mounted within a housing are transported by at least one circumferential row of apertures within the seed disk to a separate seed discharge area within the first chamber by the reduced pressure of a vacuum source coupled to a second chamber within the housing and on the opposite side of the seed disk from the first chamber, a brush and wiper arrangement mounted within a third chamber within and sealed from the second chamber and located opposite the seed discharge area bears against the second side of the seed disk to aid in dislodging and expelling debris from the apertures in the seed disk.  The brush and wiper arrangement includes at least one circular brush rotatably mounted within the third chamber and a spring arrangement for biasing the circular brush and an adjacent circular band against the second surface of the seed disk at the at least one row of apertures.  The brush and wiper arrangement also includes a relatively thin, generally planar wiper blade having a straight edge disposed against the second side of the seed disk and a leaf spring having a first end mounted within the third chamber and an opposite second end mounting the wiper blade thereon, the leaf spring being operative to bias the wiper blade against the second side of the seed disk at the at least one row of apertures.  The wiper is useful in dislodging debris within the seed disk apertures, particularly where the apertures are relatively large and are designed for use with large seeds.  The circular brush is useful in expelling from the apertures debris which has been loosened by the wiper as well as dislodging and expelling debris from relatively small apertures in seed disks designed for use with small seeds.
Patent CA-1222583-A (CA)
Inventor: MOORE WILLIAM H
IPC: B66B5/00
Filed: 1985-03-08
Granted: 1987-06-02
Abstract: 51,640 ABSTRACT OF THE DISCLOSURE           Methods and apparatus for improving the servicing of an elevator system based upon the actual usage of its many  functions.   The  usage  of  predetermined  elevator system functions is monitored and data is collected rela-tive thereto.  Threshold and limit parameters are provided for the monitored functions, which parameters are periodi-cally compared with the usage data.  The reaching of a usage threshold parameter by a monitored function results in predetermined  associated  maintenance  services  being added to a maintenace due list.  When a monitored function reaches its associated limit parameter, a need for scheduled elevator preventive maintenance is indicated for all of the maintenance services on the maintenance due list.
Patent CA-1255307-A (CA)
Inventor: TREYBIG DUANE S
IPC: C23F11/173
Filed: 1985-03-28
Granted: 1989-06-06
Abstract: ABSTRACT OF THE DISCLOSURE           Corrosion inhibitors are useful in protecting metals used in construction from attack by corrosive brines.  The corrosion inhibitors comprise the reaction product of an .alpha.,.beta.-ethylenically unsaturated aldehyde and an organic polyamine wherein the reaction product can be further reacted with a carboxylic acid or an epoxide containing compound.   32,370-F
Patent CA-1233859-A (CA)
Inventor: LEGILLE EDOUARD
IPC: C21B5/00
Filed: 1985-04-01
Granted: 1988-03-08
Abstract: A B S T R A C T         "Apparatus for introducing dosed quantities of pulverulent materials into a pneumatic propulsion fluid "      A device for introducing dosed quantities of pulverized solid materials into a carrier gas stream is presented.  The device is particularly suitable for injecting solid materials into a vessel during metal refining.  The device comprises a housing which defines a flow chamber in the axial direction for the flow of pressurized fluid or carrier gas.  The housing also has a side aperture therethrough. The side aperture is connected to a container holding pulverized materials.      Coaxial inner and outer sleeves, at least one of which is capable of rotation, are located within the housing.          The outer sleeve communicates with the aperture while the inner sleeve has an axial bore which provides a passage for the carrier gas.  Upon rotation of a sleeve, slots provided on each sleeve will align and overlap with each other and with the aperture to define a variable sized passage between the container and axial bore whereby the pulverized material is delivered therethrough to the carrier gas stream.  The rotating sleeve forms an actual part of a driving shaft which is mounted coaxially in the box by means of two bearings and which is movable in the axial direction.