baber/WOPTO huggingface dataset:
Patent CA-1121038-A (CA)
Inventor: PEARSALL THOMAS
IPC: H01L31/109
Filed: 1978-11-09
Granted: 1982-03-30
Abstract: A HETEROJUNCTION PHOTODIODE OF THE AVALANCHE TYPE          Abstract of the Disclosure A photodiode comprising a first layer of a relatively large forbidden band (e.g. 1.4 eV) in a p type of conduc-tivity, wherein photons can be absorbed, thus creating pairs of electron-holes diffusing towards a second layer, said second layer having a forbidden band (0.7 eV) that is approximately half of the first band. In that second layer of an n-type of conductivity each electron falls and creates by impact ionization a new pair electron-hole, thus producing an avalanche gain of 2. The phenomenon occurs theoretically with a zero bias voltage. In practice the photodiode operates with a bias voltage near zero. The two materials of the heterojunction are for instance In P (for-bidden band : 1.4 eV) and Ga0.47 In0.53 As (0.7 eV) providing crystalline networks perfectly matched.
Patent CA-1114497-A (CA)
Inventor: FRAZITA RICHARD F
IPC: H01P1/185
Filed: 1978-11-09
Granted: 1981-12-15
Abstract: PHASED ARRAY ANTENNA WITH EXTINGUISHABLE PHASE SHIFTERS     ABSTRACT OF THE DISCLOSURE     In a phased array antenna wherein signals are supplied to a plurality of antenna elements by a coupling network which includes digital phase shifters for varying the phase of wave energy signals supplied to the elements, there is provided apparatus for discontinuing the supply of wave energy signals to the elements through any malfunctioning phase shifter.
Patent CA-1121946-A (CA)
Inventor: MUENSTER ALFRED
IPC: C08F2/06
Filed: 1978-11-23
Granted: 1982-04-13
Abstract: ABSTRACT OF THE DISCLOSURE          An improved process for the production of polymers of acrylic acid or methacrylic acid by polymerizing acrylic acid or methacrylic acid in isopropanol or in a water-isopro-panol mixture containing at least 40% by weight of isopropanol in the presence of polymerization initiators at a temperature of from 120 to 200°C under pressure.  The polymers obtained are used as dispersing agents for inorganic pigments.
Patent CA-1118426-A (CA)
Inventor: SCHMIDT ERICH
IPC: A01N47/30
Filed: 1979-01-11
Granted: 1982-02-16
Abstract: ABSTRACT OF THE DISCLOSURE         Novel 1,2,4-oxadiazole derivatives of the general formula I       (wherein one of the symbols R1 and R2 represents   in which R3 represents C1-C8-alkyl, C3-C8-cycloalkyl, halogenated C1-C3-alky1, C1-C6-a1koxy, C1-C4-alkylamino or di-C1-C4-alkyla-mino, and the other symbol rppresents C1-C8-alkyl, C3-C8-cycloalkyl, halogenated C1-C6-alkyl, phenyl, phenyl-C1-C3-alkyl or phenyl substituted by one or more substituents selected from C1-C4-alkyl, C1-C4-alkoxy, trihalomethyl and cyano groups and halogen atoms, or represents   in which R'3 represents C1-C8-alkyl, C3-C8-cycloalkyl, halogenated C1-C3-alkyl, C1-C6-alkoxy, C1-C4-alkylamino or di-C1-C4-alkylamino) and their manufacture.         The novel compounds of the formula I havo a herbicidal action and accordingly may be made up with suitable carriers into herbicidal preparations and may be used for protecting living plants and crop areas against weeds.
Patent CA-1121825-A (CA)
Title: 2-(2-thenoylthio)-propionylglycine: method for its  preparation and pharmaceutical formulations  containing said compound
Inventor: BOLASCO FRANCO
IPC: A61K31/38
Filed: 1979-03-26
Granted: 1982-04-13
Abstract: TITLE OF THE INVENTION          "2-(2-THENOYLTHIO)-PROPIONYLGLYCINE: METHOD FOR ITS PREPARATION  AND PHARMACEUTICAL FORMULATIONS CONTAINING SAID COMPOUND"               ABSTRACT OF THE DISCLOSURE  The invention provides 2-(2-thenoylthio)-propionylglycine, a novel compound having liver-protective, mucolytic and bronchial-spasm relievillr activity.
Patent CA-1115055-A (CA)
Inventor: TANAKA MINORU
IPC: C10L5/06
Filed: 1979-04-27
Granted: 1981-12-29
Abstract: ABSTRACT OF THE DISCLOSURE         A method of drying brown coal in which the brown coal is pelletized before the drying into pellets of 2 to 5 mm dia. by a wet pelletizing process making use of the water contained by the coal itself as the binder.  The brown coal in the form of dried pellets has a larger bulk density than the brown coal in the form of fine powders which are obtained when the brown coal after the exploitation is directly dried, and, therefore, contributes to the reduction of the transportation cost.          In addition, the dried brown coal in the form of pellets can be handled and transported in quite an easy manner, as compared with the case of powdered brown coal. Further, thanks to the improved ventilation affored by the gaps between the pellets, the possibility or chance of undesirable spontaneous combustion is greatly reduced.
Patent CA-1076811-A (CA)
Inventor: FOX LESTER A
IPC: A61L2/00
Filed: 1979-06-22
Granted: 1980-05-06
Abstract: Abstract A method of sterilizing with a mixture of ethylene oxide gas and an inert gas which makes possible reuse of the ethylene oxide for an indefinite number of successive sterilization cycles.  The gas mixture is refortified with ethylene oxide when necessary.  A portion of it is periodically vented when the increasing proportion of air produces a mixture which approaches the region of flammability of the mixture and is replaced with the inert gas to reduce the proportion of air in the mixture.
Patent CA-1106527-A (CA)
Inventor: WELLARD JOHN E
IPC: C08L95/00
Filed: 1979-06-27
Granted: 1981-08-04
Abstract: A  B  S  T  R  A  C  T     The invention provides a polymer-modified bitumen comprising Venezualan feed stock bitumen and tetrachain radial teleblock polybutadiene/ polystyrene copolymer of at least 100,000 molecular weight.  The components can be readily blended to increase the softening point of the bitumen without undue increase in melt viscosity to give a product of good low temperature flexibility.  The proportion of co-polymer, based on the total polymer/bitumen mix, is suitably 10-14 weight %.  The copolymers of higher molecular weight, e.g. 180,000, give the best increase in softening point and low temperature flexibility, but for ready blending in the bitumen may need to be fluxed with lube oil also from Venezualan feed stock.  The modified bitumen, which can be in admixture with conventional fillers and additives, can be provided as a calendered sheet, or as a coating bitumen or an expansion joint compound .
Patent CA-1138585-A (CA)
Inventor: SUGERMAN GERALD
IPC: C08K5/04
Filed: 1979-07-19
Granted: 1982-12-28
Abstract: ABSTRACT OF THE DISCLOSURE         Atactic polypropylene is upgraded to form compos-ites which are workable by conventional thermoplastic shaping techniques by admixing the amorphous polypropylene with a filler which has been treated with an organo titanate chelate.  Preferred fillers are the reinforcing fillers such as the silicates and silica.  The organo titanate chelates are alpha, omega-alkylene titanates having two non-hydrolyzable groups.
Patent CA-1118072-A (CA)
Inventor: PRUGH RICHARD W
IPC: G06F3/033
Filed: 1979-07-31
Granted: 1982-02-09
Abstract: Abstract The invention relates generally to apparatus for translating the position of a writing instrument into electrical signals for transmission to a remote location such that the position and corresponding movements of the writing instrument may be recreated.  Thus, the apparatus includes a grid drive multiplexer coupled between a clock and X and Y grid lines upon a surface.  A system control is coupled between the clock and the grid drive multiplexer for controlling the energization of the grid lines by the grid drive multiplexer means.  Sample and filter detector circuits are coupled between a cursor including a coil movable on the grid and system control for relating cursor position to time in a linear mode.  Means are provided for coupling X and Y counters to the system control whereby gated clock pulses are accumulated in the X and Y counters to measure the position of the cursor on the grid.  By comparison with prior art devices, the apparatus has a number of desirable features and advantages, including the facility for determining the position of the cursor in a continuous linear fashion by using accurate electrical interpolation techniques to determine position between grids.
Patent CA-1113500-A (CA)
Inventor: MOLT KENNETH R
IPC: C08L101/00
Filed: 1979-08-08
Granted: 1981-12-01
Abstract: Abstract The storage stability of impure hydroxybenzophenones is improved by the addition thereto of an organic phosphite or organic phosphonite.
Patent CA-1093513-A (CA)
Inventor: BOUTHILLETTE JEAN-LOUIS
IPC: A47G19/34
Filed: 1979-08-09
Granted: 1981-01-13
Abstract: ABSTRACT OF THE DISCLOSURE  A granulated food dispenser for home use is disclosed which automatically dispenses just enough powered or granulated food such as coffee for a single cup, comprising a funnel-shaped food container having a metering slide-type dispenser at its lower end, a stand to support the container above a cup manually inserted within the stand and a tongue depending from the slide of the dispenser and abutting against the cup to operate the dispenser automatically and discharge a metered quantity of food into the cup upon cup insertion within the stand.  All parts can be taken apart for washing.
Patent CA-1130205-A (CA)
Title: Controlled release acrylic polymer coated  granular pesticidal compositions with  attendant reduced dermal toxicity
Inventor: PASARELA NUNZIO R
IPC: A01N57/12
Filed: 1979-08-15
Granted: 1982-08-24
Abstract: 27,707 TITLE:  CONTROLLED RELEASE ACRYLIC POLYMER COATED GRANULAR     PESTICIDAL COMPOSITIONS WITH ATTENDANT REDUCED DERMAL TOXICITY.          ABSTRACT OF THE DISCLOSURE            There are provided pesticidal compositions of low mammalian dermal toxicity comprising granular carriers impreg-nated or coated with a phosphorus containing pesticide, such as 2-diethoxyphosphinylimino)-1,3-dithiolane, 2-(diethoxy-phosphinylimino)-4-methyl-1,3-dithiolane, 2-(diethoxyphosphinyl-imino)-1,3-dithietane, 0,0-diethyl S-(ethylthiomethyl)phosphoro-dithioate and 0,0-diethyl S-[[(1,1-dimethylethyl)thio]methyl]-phosphorodithioate, and any equivalent thereof, and further coated with an acrylic polymer, and methods for preparing same.  Furthermore, there are provided compositions which will release toxicant into the surrounding environment either over a rela-tively short period of time in a controlled fashion or over a prolonged period of time.
Patent CA-1143697-A (CA)
Title: Radiation curable compositions useful as  transfer coatings
Inventor: MCCARTY WILLIAM H
IPC: C09D5/20
Filed: 1979-08-30
Granted: 1983-03-29
Abstract: ABSTRACT OF THE DISCLOSURE       Radiation coating vehicles suitable for stripping from a variety of carrying webs can be produced by proper selection of coating ingredients and cured by either actinic radiation, electron beams or thermosetting techniques.
Patent CA-1130394-A (CA)
Inventor: TANABE TAKESHI
IPC: H05B6/80
Filed: 1979-08-31
Granted: 1982-08-24
Abstract: ABSTRACT OF THE DISCLOSURE            A combined microwave and electric cooking apparatus comprising a magnetron for microwave cooking purposes, a sheath heater for electric cooking purposes, and a cooking control cir-cuit for controlling operations of the magnetron and the sheath heater.  A gas sensor is disposed in the exhaust gas path for detecting the concentration of the gas generated from a food-stuff.  When an output signal of the gas sensor indicates that the gas concentration has reached a preselected value, the cook-ing control circuit develops a control signal for terminating the cooking. Selection switches are provided for determining the above-mentioned preselected value in accordance with the kind of foodstuff to be cooked.
Patent CA-1116322-A (CA)
Inventor: FUCHS HUBERT
IPC: B01F7/00
Filed: 1979-09-21
Granted: 1982-01-12
Abstract: ABSTRACT OF THE DISCLOSURE            The invention is an apparatus for purifying polluted liquids, especially water.  The apparatus comprises a vessel with a relatively large length to width ratio including a reaction zone for contacting the liquid with a gas, separated from the rest of the vessel by a downflow-upflow wall, having a liquid inlet means for introducing a liquid into the reaction zone, the flotation zone connected with the reaction zone occupying the rest of the vessel and a skimmer  disposed at the end of the flotation zone for skimming off the floating materials to a channel arranged transverse to the longitudinal axis of the vessel and means for removing the purifying liquid from the apparatus.
Patent CA-1131703-A (CA)
Inventor: OHHINATA ICHIRO
IPC: H01L29/74
Filed: 1979-10-03
Granted: 1982-09-14
Abstract: ABSTRACT     A semiconductor switch comprising a PNPN switch, first and second transistors and a level shift element, wherein one outermost PN junction of the PNPN switch is short circuited by the first transistor, the emitter-base junction of the second transistor and the level shift element are connected in series, the series circuit is connected in parallel with the other outermost PN junction, and the collector of the second transistor is connected to the base of the first transistor, whereby the semiconductor switch may be sufficiently protected from DV/DT effect, and besides fairly sensitive to gate driving without degradation of the high breakdown voltage thereof.
Patent CA-1115048-A (CA)
Inventor: SARTOR MARIANO
IPC: A43B5/04
Filed: 1979-10-30
Granted: 1981-12-29
Abstract: SKI BOOT                 ABSTRACT OF THE DISCLOSURE       A ski boot compsises a plastics material shell, wherewith are associated a raised upper and a raised vamp, this latter being effective to cover the skier's leg front along the tibia and engage laterally the skier's leg, the raised upper and vamp being both hinged to said shell for pivoting about a substantially horizontal axis extending perpendicularly to the shell centreline.
Patent CA-1126881-A (CA)
Inventor: LEPETIC VUKO M
IPC: C01G19/02
Filed: 1979-12-19
Granted: 1982-06-29
Abstract: TIN FLOTATION                           ABSTRACT         Tin values in the form of cassiterite (SnO2) are recovered from aqueous pulps of finely divided cassiterite-bearing ore, precon-centrate or concentrate by froth flotation.  The ore pulps are deslimed thoroughly, partially or not at all.  Slimes, gangue or waste minerals in the pulps are selectively depressed by use of a metal salt/silicate reagent combination.  The cassiterite is floated at a mildly acidic to neutral pH, generally in the range of about 5 to 6, by one and/or more highly selective tin collectors such as sulfosuccinamates, aspartates, phosphonates, etc., at environmental or, preferably, elevated pulp temperature.  Flotation machine impeller speeds are within conventional range or higher, preferably the latter.  The cleaning of the thus-produced cassiterite rougher flota-tion concentrate is performed after an additional (secondary) conditioning step whereby an additional depressant, such as tannic acid, sulfuric acid, sodium fluosilicate, sodium lignin sulfonate or activated charcoal is used.
Patent CA-1110868-A (CA)
Inventor: SPRINGER JERRY L
IPC: G01N27/409
Filed: 1980-01-09
Granted: 1981-10-20
Abstract: ABSTRACT OF THE DISCLOSURE        An improved exhaust gas oxygen sensor of the type adapted for installation in the exhaust conduit of an internal combustion engine.  The improved sensor preferably uses a titania metal oxide ceramic element to sense the partial pressure of oxygen in the exhaust gases to which the sensor is exposed.  The sensor has a steel body, a ceramic insulator which is used to support the titania sensing element and its wires which pass through the in-sulator bodies and as terminal  pins inserted into enlarged passages in the insulator for connection to the titania sensing element wires.  The terminal pins are of an improved design wherein a cement material in the enlarged passage of the insulator is made to flow into a groove in each of the terminal pins and into another space between the exterior of the terminal pin and the interior of the insulator passage.  The cement material causes the bond to form between the terminal pin and the insulator and prevent leakage of exhaust gases from the exhaust conduit to flow through the sensor to the ceramic environment. Seepage of the cement material in a location to the terminal pin and its exterior contact point with the insulator also is prevented.
Patent CA-1158393-A (CA)
Inventor: HINO MINORU
IPC: C08G18/08
Filed: 1980-01-11
Granted: 1983-12-06
Abstract: Abstract of the Disclosure The invention concerns a resin composition for electro-coating which comprises (I) a reaction product (G) of an epoxy compound (E), optionally an epoxy group-modifying agent (F) and a partially esterified and/or partially amidated product (D) which is obtained by partially ester-ifying and/or partially amidating an adduct (A) of a conjugated diene polymer with an (B-unsaturated dicar-boxylic acid or its anhydride with an alcoholic hydroxy group-containing compound (B) and/or a primary or secondary monoamine (C), respectively, and (II) a completely blocked organic polyisocyanate, the mixture of the reaction product (G) and the completely blocked organic polyisocyanate being neutralized, or a neutralized product of an adduct (H) of the reaction product (G) with a partially blocked organic polyisocyanate. The resin composition of the present invention is applicable to electrocoating, particularly cathodic electrocoating, and can give a coating film having excellent anticorrosion and adhesion to steel plates, and hence, is useful for electrocoating of steel products, particularly for electrocoating of automobiles.
Patent CA-1122797-A (CA)
Inventor: SPOONER ARCHER M
IPC: G02B6/06
Filed: 1980-01-11
Granted: 1982-05-04
Abstract: ABSTRACT      The invention provides head-coupled area-of-interest visual display apparatus particularly for ground-based craft-flight simulators.  The apparatus provides binocular, pseudo-collimated vision of a display, projected onto the inside of a part-spherical shell which carries a concave retro-reflective screen and surrounds the pilot.  The displayed scene covers an area of interest centred upon the pilot's line of view.  The image generator used may be of the computer generated image, laser-scanned model or closed-circuit television type.  For the pseudo-collimated display, the same image is projected for left and right eyes from points on a pilot's helmet above the pilot's eye positions.  Line scan apparatus is mounted in the pilot cockpit.  Line image transmission is by fibre-optic light guide ribbon and two such light guide ribbons are used to restrict impairment of the image by fibre fracture.  Common frame scan apparatus is mounted on the pilot's helmet.  Sensing means detect the pilot's head/helmet movement to permit voluntary scanning of a wide angle of simulated pilot view from the craft.            P.2094/1
Patent CA-1151517-A (CA)
Inventor: GARNEAU MAURICE N BOX NISKU AL
IPC: B65H81/08
Filed: 1980-02-05
Granted: 1983-08-09
Abstract: ABSTRACT OF THE DISCLOSURE         A machine for wrapping a pipe with tape or another strip of material includes a frame defined by a pair of spaced apart V-shaped ends, which are interconnected at their vertices by a roll of tape, the ends having wheels and straddling a pipe so that the tape can be unwound onto the pipe when the frame is rotated around the pipe, and one of the frame ends is rotatable relative to the other end so that the wheels on one end can be moved out of alignment with the wheels on the other end to change the path of travel of the frame on the pipe from circular to helical or to lengthen the helix.
Patent CA-1097730-A (CA)
Inventor: KNOLL WILLIAM C
IPC: H05B41/231
Filed: 1980-02-08
Granted: 1981-03-17
Abstract: ABSTRACT An electronic ballast circuit includes a directly driven high frequency inverter circuit with a series resonant output circuit coupled to a load circuit having a high intensity discharge (HID) lamp and to a drive circuit dependent upon current flow in the load circuit.  A starting circuit for the high frequency inverter is coupled to a DC source and to a charge storage and isolating circuit and provides initial energization to the high frequency inverter circuit.  Also, a lamp starting circuit initiates increased conductivity of the high frequency inverter circuit which causes development of energy sufficient to "fire" an HID lamp whereupon a disablement circuit essentially removes the lamp starting circuit from the operational circuitry.     -21,719
Patent CA-1150519-A (CA)
Inventor: CORNWELL DAVID A
IPC: C02F1/26
Filed: 1980-03-28
Granted: 1983-07-26
Abstract: ABSTRACT     In a process for extracting a metal ion from an aqueous slurry containing a water-insoluble compound of the metal, the slurry is contacted with an organic solvent without previously bringing all the metal ions into aqueous solution.  The organic solvent is an ion-exchange extractant for the metal ion, preferably an acid alkyl phosphate, dissolved in a diluent.  After ion-exchange has taken place, the organic solvent is stripped of the metal ion, regenerated, and recycled.
Patent CA-1120734-A (CA)
Inventor: BRANDIN IVAR
IPC: E02D3/115
Filed: 1980-04-25
Granted: 1982-03-30
Abstract: ABSTRACT OF THE DISCLOSURE           Flexible pipes unwound from a supply drum are placed adjacent a wall to be supported, and water is applied to the outside of the pipes while passing through them a cooling medium at a temperature below the melting point of ice, thereby freezing a first ice layer against the wall.          Cooling medium at a temperature above the ice melting point is then passed through the pipes to loosen them from the ice; and at Least some of the pipes are rewound on the drum to remove them from the first ice layer and are then replaced outside but adjacent thereto, after which the procedure is repeated until enough ice layers are formed to provide a block of desired thickness.
Patent CA-1169483-A (CA)
Inventor: MEDDING REUBEN
IPC: H02P7/28
Filed: 1980-04-28
Granted: 1984-06-19
Abstract: ABSTRACT         A constant speed brushless D.C. motor of the permanent magnet outside rotor type with an internal stator wired in quadrature having a pair of Hall effect switches one of each mounted in proximity to one of a pair of opposite stator wirings to sense the direction and phrase relationship of the field in the rotor, a coarse feedback loop sensing back electromotive force in said motor including first comparator for comparing the negative generated motor voltage and motor potential said Hall effect switches operating under the influence of said first comparator to control power to said motor and thereby control its speed, a fine speed control loop including a tachometer for generating electrical pulses in proportion to motor speed upon rotation of said rotor, counter means counting said pulses and a second comparator connected to said counter means for comparing the frequency of said electrical pulses having a given frequency and the electrical pulses representing a steady desired preset motor speed providing a balancing potential difference at said second comparator thereby achieving a frequency lock to lock in the motor speed. An electrical dynamic brake is disclosed.
Patent CA-1135194-A (CA)
Inventor: MARYNOWSKI CHESTER W
IPC: F01D1/36
Filed: 1980-05-05
Granted: 1982-11-09
Abstract: CHESTER W. MARYNOWSKI          ROBERT G. MURRAY          KONRAD T. SEMRAU          CHARLES E. LAPPLE          F. MICHAEL LEWIS     "RADIALLY STAGED DRAG TURBINE"     ABSTRACT     The staging or compounding of drag-type turbines having a high energy input is herein accomplished by disposing successive stages of a drag turbine in radially offset relation, i.e., nested relationship with nozzles between radially dis-placed stages mounted either in fixed spatial position or mounted for rotation with the next preceding stage and providing either like or opposite directions of rotation of successive stages.  The successive radial stages of the present invention are separately coupled to coaxial drive shafts which, in turn, may be appropriately coupled to rotary output means in a conventional manner to provide the output power of the multistaged turbine.   1.