baber/WOPTO huggingface dataset:
Patent CA-1203688-A (CA)
Inventor: MATHIESEN MAIT M
IPC: C10L1/32
Filed: 1983-05-06
Granted: 1986-04-29
Abstract: CANADIAN PATENT APPLICATION                           OF    MAIT  MIHKEL  MATHIESEN,  LARS  INGEMAR  GILLBERG, KARL MARTIN EDVIN HELLSTEN AND           GUNVOR BIRGIT TORA KARLSSON                       FOR          A PUMPABLE AQUEOUS SLURRY OF A SOLID FUEL AND A       PROCESS FOR THE PRODUCTION THEREOF            Abstract of the Disclosure A pumpable aqueous slurry of a solid fuel in the form of a pulverized, carbonaceous material and a process for the production of such slurry are described.   The aqueous slurry comprises a component which consists of coarse grains of carbonaceous material having a particle size of up to 25 mm,  and a further component which consists of a carrier liquid in which the coarse-grained carbonaceous material is suspended.  The carrier liquid proper has a solids content of 65-90% by weight and consists of water and pulverized, carbonaceous material having a particle size of at most 0.5 mm, preferably at 1a most 350   µm, and 0.02-2% by weight of at least one additive including a water-soluble surface active com-pound which consists of an alkylene oxide adduct having a hydrophobic part and a hydrophilic part, said hydrophilic part consisting of a polyalkylene oxide chain, preferably a polyethylene oxide chain, having a length of 40-200 alkylene oxide units.  the pumpable aqueous slurry is produced by first preparing the carrier liquid and then adding to said liquid 20-40% of the coarse-grained, carbon-aceous material, based upon the total weight of the aqueous slurry.   The aqueous slurry is intended primarily for pumping in pipelines.   1b
Patent CA-1188653-A (CA)
Title: Procede de calorifugeage des anodes precuites dans  les cuves d'electrolyse pour la production  d'aluminium
Inventor: CASDAS SPYRIDON
IPC: C25C3/12
Filed: 1983-05-17
Granted: 1985-06-11
Abstract: Un procédé de calorifugeage des anodes précuites dans les cuves de production d'aluminium par électrolyse d'alumine dissoute dans un bain d'électrolyse à base de cryolithe fondue, consistant à recouvrir la partie supérieure des anodes d'une couche calorifuge d'alumine et/ou de bain d'électrolyse broyé. Le procédé est caractérisé en ce qu'on place à la partie supérieure de l'anode et sur toute sa périphérie, une bande d'aluminium dont la hauteur est sensiblement égale à la hauteur de la couche calorifuge. Pour faciliter la mise en place de la bande, on forme sur la périphérie de l'anode un rebord sur lequel vient s'appuyer ladite bande.
Patent CA-1193185-A (CA)
Inventor: RICHARDSON EDWIN A
IPC: E21B43/00
Filed: 1983-06-16
Granted: 1985-09-10
Abstract: A B S T R A C T                THERMALLY STIMULATING WELL PRODUCTION          A well which is producing slowly can be economically heated by first inflowing a gas (such as nitrogen) generating solution, to form a pool of reacting liquid near the uppermost opening into the reservoir, then inflowing more solution while artificially-lifting liquid from near the lowermost opening into the reservoir at a rate substantially equalling the inflow rate.
Patent CA-1198251-A (CA)
Inventor: LAURITANO NATALIE A
IPC: A41D23/00
Filed: 1983-06-30
Granted: 1985-12-24
Abstract: HAIR COLOR SELECTOR SCARF     Abstract of the Disclosure A hair color selector scarf which is a substantially triangular kerchief.  A bang-shaped row each of different colored hair is attached to each of the three sides of the kerchief intermediate the ends of each side.  The kerchief is of sufficient size substantially to cover the natural hair of the wearer and tying strings are attached to each of the three corners of the kerchief to allow tying it under the chin or behind the nape of the neck.
Patent CA-1199777-A (CA)
Inventor: PILIE ROLAND J
IPC: G21F7/005
Filed: 1983-07-05
Granted: 1986-01-28
Abstract: ABSTRACT        A method and apparatus is provided for attaching and detaching two flexible panels, each of which has an opening defined by mating parts of a continuous flexible fastener strip.  An elongated slide member has four generally elongated passages which includes merging parts at one end thereof to receive the fastner strip parts. The passages separate in the central part of the slide member, twist 90°, and have parts merging different ones of the passages at the other end of the slide member to bring the fastener strips into contiguous relation with their mating parts arranged such that one part of each fastener strip is mated with an opposite part of the other fastener strip by moving the slide member along the strips, simultaneously and progressively separating the mating parts of the fastener strips and joining the parts of one fastener with opposite parts of the other fastener. Joining and/or separating the edges of the two openings is accomplished to form and/or close a distendable passage through the panels which is defined by the parts of the two joined fastener strips.  The slide member may include a separable secondary slide cooperable with one of the fastener strips and capable of (a) joining with the main slide member to assist in transfer of the fastener parts, or (b) operating on the parts of one fastener strip independently of the main slide member.
Patent CA-1194197-A (CA)
Title: Generateur laser guide d'onde a gaz
Inventor: OUHAYOUN MICHEL
IPC: H01S3/03
Filed: 1983-07-08
Granted: 1985-09-24
Abstract: Abrégé descriptif Le générateur comporte une enveloppe (3) et deux miroirs (4, 5) délimitant une cavité résonnante (6), dans laquelle est maintenu un guide d'onde monolithique (1) à capillaire (2). Le capillaire (2) est formé dans une portion amincie (12) du guide. Deux électrode s'étendent sur la portion amincie (10, 11) du guide. Le capillaire (2) a une section droite circulaire, obtenue par perçage ou filage d'un barreau cylindrique en diélectrique. La circulation du gaz laser est excellente et le plasma laser uniforme. Le générateur a des applications multiples, par exemple médicales.
Patent CA-1220186-A (CA)
Inventor: MARCHAL FRANCIS V
IPC: F16K5/06
Filed: 1983-09-20
Granted: 1987-04-07
Abstract: ABSTRACT OF THE DISCLOSURE A valve is disclosed having a generally cylindrical body having an inlet and an outlet opening and a lateral opening. The valve body is received in a cylindrical collar which is heat shrunk onto the cylindrical body of the valve to provide a prestressed condition in the valve body thereby substantially increasing the strength of the body.
Patent CA-1222585-A (CA)
Inventor: SCHLOTZHAUER KENNETH G
IPC: G01R13/32
Filed: 1983-11-22
Granted: 1987-06-02
Abstract: Abstract of the Disclosure A trigger circuit including arm and trigger com-parators which are responsive to the push-pull output from a differential  amplifier but insensitive to its common mode component. A controllable hysteresis inser-tion circuit is also included in the circuit for noise rejection and sensitivity control purposes.
Patent CA-1209155-A (CA)
Inventor: DETTY MICHAEL R
IPC: B09B3/00
Filed: 1984-01-20
Granted: 1986-08-05
Abstract: -i-Abstract of the Disclosure Novel Z-3-trihalochalcogenpropenone com-pounds selected from the group consisting of Z-3-trihaloseleniumpropenone and Z-3-trihalotellurium-propenone and methods of making such compounds are disclosed.  The Z-3-trihalochalcogenpropenone com-pounds are useful as sensitizers in electrophoto-graphic compositions and elements.
Patent CA-1217160-A (CA)
Inventor: IWAYAMA KAZUYOSHI
IPC: C10G73/02
Filed: 1984-02-09
Granted: 1987-01-27
Abstract: ABSTRACT OF THE DISCLOSURE         A process for improving fluidity of hydrocarbon fractions by dewaxing thereof is described.  In the process, hydrocarbon fractions are contacted with hydrogen in the presence of a specific type of catalyst, thereby lowering a pour point of the hydrocarbon fraction.  The catalyst comprises a specific type of zeolite which is defined by a specific X-ray diffraction pattern and which has a predetermined range of mesitylene adsorption.
Patent CA-1205271-A (CA)
Inventor: PETIT RAYMOND
IPC: A01F25/20
Filed: 1984-02-15
Granted: 1986-06-03
Abstract: IN THE CANADIAN PATENT OFFICE           PATENT APPLICATION entitled : DEVICE FOR DISCHARGING PULVERULENT            PRODUCTS CONTAINED IN A SILO.           Applicant : GUERY S.A.     ABSTRACT OF THE DISCLOSURE                  Device for discharging pulverulent products contained in a cylindrical silo, the discharge of said products taking place in an appropriate part of the lower periphery of the silo.         A radial horizontal arm is equipped with an Archimedean screw, said arm being placed in the immediate vicinity of the lowest part of the silo and being mounted on a turret.         A fixed vertical shaft, placed inside the turret co-axially to the silo, is provided with a first pinion which cooperates with a second pinion wedged on the shaft of the Archimedean screw. Means are also provided to rotate the arm and the turret about the axis of the silo.
Patent CA-1223193-A (CA)
Inventor: BABINGTON ROBERT S
IPC: F23N/
Filed: 1984-03-16
Granted: 1987-06-23
Abstract: Flow Control Module and Method for Liquid Fuel Burners and Liquid Atomizers Abstract An improved apparatus is disclosed for controlling the flow of liquid fuel in fuel burners of the type which comprise a hollow atomizer bulb having a smooth, preferably convex exterior surface which tapers toward a small aperture through which high pressure air is forced to atomize fuel as it flows in a thin film over the exterior surface of the bulb.  To ensure that the feed tube for liquid fuel positioned above the atomizer bulb is quickly and thoroughly flushed of air before atomization begins and that a film of fuel is reliably established over the entire exterior surface of the atomizer bulb prior to the introduction of high pressure air to aperture, fuel is drawn from a sump by a constant displacement pump which directs a flow of fuel into a deaeration chamber having a suitable baffle for separating entrained air and dissipating dynamic flow effects.  The inlet of the feed tube is positioned at the lower end of the deaeration chamber so that as the chamber fills with liquid fuel, any air in the feed tube is quickly flushed.  The upper end of the deaeration chamber is closed and provided with an inlet to a siphon conduit which preferably empties into the sump.  An adjustment screw or plus valve is provided to permit variation of the flow through the siphon and, hence, variation of the flow over the atomization bulb.  To provide a constant flow rate of atomized fuel leaving the aperture even as the temperature of the fuel varies, a temperature sensitive valve may be provided at the outlet of the pump with a suitable bypass to the sump or in the siphon conduit or in both locations.  Methods of delivering liquid fuel are disclosed for such atomizing systems.
Patent CA-1220914-A (CA)
Inventor: RIGGS DENNIS M
IPC: D01F9/14
Filed: 1984-03-20
Granted: 1987-04-28
Abstract: ABSTRACT OF THE DISCLOSURE            A method  of  spinning  a pitch precursor material to produce a continuous, pitch-base carbon fiber  (10)  in which the precursor material is spun through capillaries (11) of a spinnerette (12) so that a fiber carrot (13) formed during spinning will exhibit a predetermined viscosity at or near a point of spin reversal (17) of the carrot (13).
Patent CA-1226475-A (CA)
Inventor: ROBERTSON JOHN A
IPC: B44B5/00
Filed: 1984-07-11
Granted: 1987-09-08
Abstract: MASKING APPARATUS ABSTRACT OF THE DISCLOSURE Apparatus for forming multi-character messages on the surfaces of solid materials wherein an array of marker pins (88-94) are selectively pneumatically actuated from a corresponding array of solenoid actuated valves (102-104, 106). The marker pins are returned to their operational ready position by a select pneumatic input (96) which performs in conjunction with a pressure limiting valve (126). Continuous monitoring of marker pin performance is carried out by a transducer (166) operating in conjunction with a monitoring duct (168) and selectively located monitoring openings (ago). The marker pins readily are accessed for maintenance in consequence of their positioning within a head structure (12) having access openings at one end (78) and which is retained in position by ball lock pins (64, 65).
Patent CA-1222822-A (CA)
Inventor: BOZARTH THEODORE B JR
IPC: G06J1/00
Filed: 1984-10-25
Granted: 1987-06-09
Abstract: APPLICATION OF       I. B. BOZARTH, A. M. OLSEN, AND R. H. ROWLANDS               A METHOD OF DIGITAL TEMPERATURE COMPENSATION AND A DIGITAL DATA HANDLING SYSTEM UTILIZING THE SAME     A method of digital temperature compensation for a digital data handling system uses a digital temperature compensation for producing a digital word modification for an input to a temperature sensitive digital to analog converter.  The method includes the steps of sensing the temperature effecting the digital data handling system to produce a digital temperature representation which is used by a digital computer to produce an output in accordance with a characterization equation in the form of Output - f(D, M) where D = digital data and M = f(temperature).  The temperature stability of the digital data handling system is affected by the temperature stability of a reference voltage circuit used in the digital-to-analog converter and having a voltage reference diode.  A compensation circuit uses a temperature sensor in the form of a second diode which is thermally coupled to the reference diode, and a tracking type analog-to-digital converter for converting an analog signal.  The output of the analog-to-digital converter is a count stored in the counter and is supplied as a digital word to a digital computer system which uses the digital word to modify a digital  input to the digital-to-analog converter.  The computer system includes a non-volatile memory in which is stored a characterization equation which describes the performance of the digital-to-analog converter as a function of the digital output signal from the computer and the digital representation of temperature from the analog-to-digital converter.  Thus, the output from the digital-to-analog converter is compensated for the effect of temperature on the digital-to-analog converter especially with rspect to the effect of temperature on the reference diode.
Patent CA-1265187-A (CA)
Inventor: WAIDMANN WILHELM
IPC: H02M7/515
Filed: 1984-11-07
Granted: 1990-01-30
Abstract: ABSTRACT         In phase-sequence inverters used to supply asynchronous machines large commutation capacitors lead to protracted commuta-tion delay times, which renders current-carrying no-load operation difficult at high rpm.  For this reason, in order to achieve no-load operation the machine is first de-excited by locking out the commutation cycle of the inverter.  The commutation capacitors required for the resumption of commutation are so charged that the energy contained in them is sufficient to ensure that, once machine synchronous commutation has been resumed, sufficient cur-rent to excite the machine can flow from these capacitors into the machine windings.
Patent CA-1221832-A (CA)
Inventor: AFZALI-ARDAKANI ALI
IPC: B41C1/10
Filed: 1984-11-08
Granted: 1987-05-19
Abstract: METHOD FOR MAKING DIRECT NEGATIVES AND DIRECT    MASTERS BY ELECTRCEROSION RECORDING AND         PRODUCTS FORMED THEREBY                     ABSTRACT     An electroerosion recording medium for generation of direct negatives or direct masters comprises a conventional support on which is deposited a thin conductive layer, and a protective overlayer com-prising  a  crosslinked  binder.   The  overlayer contains a solid conductive lubricant and option-ally  a  particulate  scouring  agent  to  inhibit electrode fouling during writing.  Preferably a hard base layer is present between the support and the conductive layer.  A method for making the described product is also disclosed.
Patent CA-1233284-A (CA)
Inventor: FALK JOHN C
IPC: C08L21/00
Filed: 1984-11-27
Granted: 1988-02-23
Abstract: GRAFT COPOLYMER - PLASTICIZED PVC BLENDS       AS THERMOPLASTIC ELASTOMERS            ABSTRACT:      Compositions  comprising  high rubber ABS graft copolymers, PVC and plasticizers for PVC are useful as thermoplastic elastomers.  Formulations exhibiting good solvent resistance, abrasion and compression set charac-teristics may be used in shoe soling, wire and cable covering, hose and tubing and automotive applications.
Patent CA-1231147-A (CA)
Title: Low insertion force circuit board connector assembly
Inventor: NOSCHESE ROCCO J
IPC: H05K1/02
Filed: 1984-12-11
Granted: 1988-01-05
Abstract: LOW INSERTION FORCE CIRCUIT BOARD                   CONNECTOR ASSEMBLY                     ABSTRACT         A low  insertion force electrical  connector system comprises a receptacle having a plurality of electrical contacts arranged in at least two opposing rows.  A low insertion force system selectively spaces apart  or  closes  the  electrical  contacts  to  limit insertion of a circuit board with a low force. Devices are provided for aligning and locking the circuit board within  the  receptacle  and  an  actuating  system is arranged to serially operate the aligning and locking devices  first  followed  by  the low  insertion  force system.
Patent CA-1251779-A (CA)
Inventor: SAUCIER DAVID O
IPC: B01F15/00
Filed: 1985-01-29
Granted: 1989-03-28
Abstract: Abstract of the Disclosure An improved agitator assembly for sanitary tanks includes a drive shaft extending through a tubu-lar housing.  A slide coupling is connected between the outer end of the drive shaft and a drive motor. An impeller is secured to the other end of the drive shaft which is supported on a bearing/seal member in the inner end of the shaft housing.  The adjoining surfaces of the bearing/seal member and impeller base are normally engaged in rotary sealing relationship by springs but shift apart responsive to introduction of cleaning solution into the housing so that the cleaning solution is discharged into the tank at the base of the impeller after washing the seals to facilitate cleaning without manual disassembly or scrubbing.
Patent CA-1255542-A (CA)
Inventor: FRIDMAN ROBERT
IPC: H05K13/04
Filed: 1985-02-22
Granted: 1989-06-13
Abstract: ABSTRACT      A device is disclosed for attaching to or removing modular electronic components  from a substrate which is ad-justably positioned beneath a heater means delivering a flow of uniformly heated air.   The heated air is directed to the sides of the component to melt solder associated with terminals thereon by a series of changable nozzles which can be moved into or out of registry with the component.  Vacuum means is also provided for contacting the component to position it on or remove it from the substrate.
Patent CA-1247737-A (CA)
Inventor: KAWAI YOSHIHIKO
IPC: G11B5/147
Filed: 1985-03-05
Granted: 1988-12-28
Abstract: ABSTRACT OF THE DISCLOSURE          A magnetic head is disclosed which comprises a main core made of sendust material and a pair of reinforcing cores for holding the main core so that the main core is sandwiched between the pair of reinforcing cores. The main core is adhered to the pair of reinforcing cores by glass material through transition metal layers formed on both sides of the main core.  The main core comprises a pair of core halves having transition metal layers formed on their contacting surfaces, the pair of core halves with transition metal layers being adhered to each other by glass material.
Patent CA-1265081-A (CA)
Inventor: CHENG DAVID S K
IPC: C12N5/04
Filed: 1985-03-25
Granted: 1990-01-30
Abstract: ABSTRACT OF THE DISCLOSURE Process for Regenerating Cereals ABSTRACT OF THE DISCLOSURE       The present invention relates to the regeneration of cereals including barley, corn, wheat, rice and sorghum. The process comprises the steps of:      (a) culturing tissue obtained from a cereal plant on an induction medium comprising mineral salts, vitamins, sucrose and a hormone in an amount sufficient to ensure callus formation, (b) culturing the callus on a series of media, said series comprising at least one medium and each medium comprises mineral salts, vitamins, sucrose and a hormone in an amount sufficient to insure differentiation to plantlets having shoots and roots at the completion of the series, and (c) culturing the plantlets on an establishment medium comprising mineral salts, vitamins and sucrose, whereby the plantlets are established so that they can be transplanted to soil.
Patent CA-1256693-A (CA)
Inventor: TYSON JOSEPH H
IPC: F27B7/42
Filed: 1985-04-03
Granted: 1989-07-04
Abstract: ABSTRACT OF THE DISCLOSURE     A rotary kiln has a number of thermocouples respectively sensing the kiln temperature at spaced locations and respectively connected to annular slip rings each in kiln sections.  Laterally facing peripheral surfaces of the rings are respectively cooperable with brush contacts connected to a bar and a fork which embraces a ring moveable axially with the rings.  Thus, on longitudinal expansion of the kiln the contacts are caused to move with the rings.  The electric signal from the thermocouples are fed to a stationary sensor.  In a modification the ring sections are electrically isolated and each section is connected to a respective sensor.          Position sensors may be used to detect the rotary position of the kiln.  The invention can be applied to other sensors.
Patent CA-1241847-A (CA)
Inventor: MOORE CLAYTON A
IPC: E02D5/62
Filed: 1985-06-05
Granted: 1988-09-13
Abstract: ABSTRACT           An improved grouting method and arrange-ment using aqueous solutions of alkali silicate materials confined between a pair of pile seal assemblies in sealing the annular space formed between either a jacket leg or pile sleeve and a pile driven therethrough or similar annular space of an offshore platform to support a column of grout thereon so that the annular space may ultimately be filled with grouting material.
Patent CA-1232133-A (CA)
Inventor: PINEAU DIDIER
IPC: C21B5/00
Filed: 1985-06-28
Granted: 1988-02-02
Abstract: Method for heating the reducing gas of a blast furnace by means of a plasma generator. The reducing gas flows through a pipe into which issues the nozzle of the plasma generator. The pipe leads towards a tuyere of injection into the blast furnace, and the axis of said nozzle converging towards that of the pipe. The method is characterized in that the acute angle A between the axis of the nozzle and the axis of the pipe is at the most equal to 50 DEG , in that the distance 1 separating the point of intersection of the axis of the pipe with the axis of the nozzle from the center of the outlet orifice of the nozzle is at the most equal to D/2sinA, D being the inner diameter of the reducing gas inlet pipe, and in that the ratio D/d, in which d is the inner diameter of the outlet orifice of the nozzle is at least equal to 1.5. The object of the method is to eliminate wear of the reducing gas pipe by means of the jet of plasma.
Patent CA-1252940-A (CA)
Inventor: ALLEN ROY A
IPC: C08G59/14
Filed: 1985-07-18
Granted: 1989-04-18
Abstract: A B S T R A C T      PROCESS FOR PREPARING HIGHER MOLECULAR WEIGHT EPOXY RESINS      Improved process for preparing higher molecular weight polyepoxides from lower molecular weight polyepoxides which comprises reacting (1) a lower molecular weight polyepoxide, (2) a polyhydric compound, (3) an etherification catalyst and (4) dimethylol propionic acid.
Patent CA-1268707-A (CA)
Inventor: UEMURA YAHIRO
IPC: C07K14/435
Filed: 1985-09-19
Granted: 1990-05-08
Abstract: ABSTRACT OF THE DISCLOSURE         Virus-contaminated immunoglobulin can be virus-inactivated by heating it in a substantially dry state at a temperature of 30° to 100°C for a period of time suf-ficient for inactivating virus with maintaining original activity of the immunoglobulin. The addition of glycine, sodium chloride, sodium acetate, polyethylene glycol, albumin or mannitol enhances the effect and gives good solubility and good state to the solution of the virus-inactivated immunoglobulin.