baber/WOPTO huggingface dataset:
Patent CA-1155974-A (CA)
Inventor: JARRY PHILIPPE
IPC: C30B19/10
Filed: 1980-12-02
Granted: 1983-10-25
Abstract: PHF. 79-592                    7 ABSTRACT:           Method of manufacturing a semiconductor device by liquid phase epitaxial growth of layers on a substrate.  A number of gallium-arsenide or gallium-aluminum-arsenide layers which are doped with elements such as germanium are grown on the substrate in an epitaxy furnace by contacting the substrate successively with a number of melts consist-ing of the components of the various layers.  After the last melt has been wiped off, the resulting structure is cooled down to ambient (or room) temperature.  During said cooling, the upper surface of the structure is contacted with a liquid bath.  In this way doping elements which are still present at the surface are dissolved in the gallium.  When at room temperature the gallium is removed, a surface free of doping elements is obtained.
Patent CA-1138741-A (CA)
Inventor: NICOLA FAUSTO C
IPC: G05D16/06
Filed: 1981-01-12
Granted: 1983-01-04
Abstract: ABSTRACT OF THE DISCLOSURE A back pressure regulator for regulating fluid flow includes a casing the interior of which is divided into a control chamber and a flow chamber.  A fluid, for example a gas, is introduced into the control chamber at a pressure equal to the control pressure, such pressure being adjustable by a piston slidably mounted in the control chamber.  Fluid, under the pressure to be controlled, is introduced against the other side of the diaphragm.  At the same time, fluid, the pressure of which is to be controlled, passes through a valve in the casing, the valve being slidably mounted in the flow chamber and connected to the diaphragm for movement therewith.  Changes in pressure on the flow chamber side of the diaphragm result in movement of the diaphragm to open or close the valve, whereby the pressure of fluid passing through the valve is maintained constant.
Patent CA-1145555-A (CA)
Inventor: FUELLING WILLIAM J JR
IPC: A01D34/416
Filed: 1981-03-30
Granted: 1983-05-03
Abstract: ABSTRACT OF DISCLOSURE         Disclosed herein is a filament mower comprising a housing including a generally horizontal top deck and a depending wall extending downwardly from the top deck and including an arcuate portion and a side wall portion, which arcuate portion has a generally common radius extending from a common center, and which side wall portion is radially spaced from the common center at a distance less than the common radius.  The mower also includes a filament head carried by the housing for rotation within the housing, wheel means on the housing for supporting the housing for travel on the ground, and a handle connected to the housing.
Patent CA-1171459-A (CA)
Inventor: PUTMAN THOMAS H
IPC: G05F1/70
Filed: 1981-04-22
Granted: 1984-07-24
Abstract: 47,479 VOLTAGE REGULATOR UTILIZING A STATIC VAR GENERATOR WITH HALF PERIOD AVERAGING AND SATURATING TYPE FIRING ANGLE CONTROL        ABSTRACT OF THE DISCLOSURE A voltage regulator is taught for maintaining the terminal voltage of a three phase transmission line at a fixed reference value.  The voltage regulator system utilizes the reactance of the transmission line in con-junction with reactive current from a VAR generator to compensate for the voltage effect of line current as it flows through the line reactance.  The VAR generator is of the parallel capacitor-inductor type where the inductor is controlled by a thyristor switch.  The con-duction of the thyristor is controlled by utilizing a control system which generates an error signal based on the half period average of line voltage.  The error signal is converted to a signal which is proportional to flux linkages by an integrator and then compared with the integral of the voltage signal for determining the con-duction angle of the thyristor switches.
Patent CA-1172609-A (CA)
Inventor: TOKAYER JOSEF
IPC: A47J27/14
Filed: 1981-06-11
Granted: 1984-08-14
Abstract: ABSTRACT OF THE DISCLOSURE    The present invention provides a dispensing device comprising a bowl portion for receiving articles to be dispensed, at least one sweeping member rotatable in the bowl portion, a handle for rotating the sweeping member, a ramp through the bowl portion and an opening in the bowl portion to the ramp.  The sweeping member is adapted to sweep across the ramp opening to which the articles in the device are gravity fed where they drop on to the ramp and are guided outwardly of the bowl portion.
Patent CA-1215500-A (CA)
Inventor: KLIPPERT HEINZ
IPC: C08F2/18
Filed: 1981-08-06
Granted: 1986-12-16
Abstract: ABSTRACT OF THE DISCLOSURE       The process described is carried out in at least two reaction zones, plug flow of the polymerization mixture being maintained in all the reaction zones.   In the first reaction zone, polymerization is carried to a conversion of not more than 10 % and, in the course thereof, the polymerization mixture is agitated suffi-ciently to establish the desired particle size morphology, preferably at a stirring energy per unit volume of 0.1 to 5 kWm-3.        Particularly in the second reaction zone, the formation of polymer incrustations on the surfaces coming into contact with the polymerization mixture is prevented, preferably by ensuring that the polymerization mixture comes exclusively into contact with smooth, non-metallic surfaces.    The device preferably comprises three reac-tors, all of which have a length/diameter ratio of at least 4, the first reactor standing in a vertical position and the other two reactors being in an approximately horizontal position.     This makes it possible to manu-facture, over a long period, vinyl chloride polymers at good space-time yields and with a constant and good pattern of properties and a narrow particle size distri-bution.
Patent CA-1179145-A (CA)
Inventor: ROUILLARD DENISE
IPC: C22B41/00
Filed: 1981-08-18
Granted: 1984-12-11
Abstract: ABSTRACT OF THE DISCLOSURE           A process for selective liquid-liquid extraction of germanium from an aqueous acidic liquor containing, be-sides germanium, at least one other metal selected from the group which comprises cadmium, zinc, cobalt, iron, ar-senic and nickel. This process includes extracting germa-nium from said aqueous liquor by contacting said liquor with an organic medium containing a diluent and an extrac-tant, said diluent being immiscible with said aqueous li-quor. The major part of germanium passes from said aqueous liquor to an organic phase which is subsequently submitted to a stripping step by contacting with an alkaline medium, with formation of an aqueous phase containing the major part of germanium from said aqueous liquor.
Patent CA-1168355-A (CA)
Title: Television receiver high voltage protection circuit
Inventor: KNIGHT PETER R
IPC: H04N3/18
Filed: 1981-09-04
Granted: 1984-05-29
Abstract: RCA 75,830 ABSTRACT OF THE DISCLOSURE The retrace pulse voltage developed across a television receiver flyback transformer winding is rectified and filtered to develop a voltage representative of picture tube ultor voltage.  This representative voltage is applied to an input terminal of a comparator.  A beam current representative voltage, obtainable, for example, at the input of a beam limiter circuit, is applied to a filter.   The filter output voltage, which is the time integration voltage of the beam current representative voltage, is applied to another input terminal of the comparator.  The comparator develops a disabling signal that is utilized to disable normal television operation when the ultor voltage exceeds a magnitude which differs with different values of the filter output voltage.  The beam current information from the filter output increases the comparator sensitivity to ultor voltage increases at the higher beam current levels where greater amounts of X-radiation may be produced while avoiding unnecessary disabling of television operation at the lower beam current levels where greater increases in ultor voltage may be tolerated.  The time constant associated with the filter is relatively short for relatively light beam current loading conditions and is changed to a relatively long time constant value under severe beam current loading conditions in order to ascertain whether a permanent current overload condition exists that requires disabling of the television receiver.
Patent CA-1154017-A (CA)
Inventor: BENKO PAL
IPC: C07D241/00
Filed: 1981-09-11
Granted: 1983-09-20
Abstract: ABSTRACT        The invention relates to new 2-hydroxymethyl-quinoxaline-1,4-dioxide derivatives of the general formula (I).                                       (I) wherein A represents an amino group, or a group of the general formula -NH-COOR1, wherein R stands for a C2-4 alkyl group, or a group of the general formula -NH-CX-NH2, wherein X denotes an oxygen or sulfur atom, or a group of the formula -NH-C(-NH)-NH2, or a group of the general formula -NH-R2, wherein R2 represents-(C1-6 alkyl, a phenyl, a benzyl, a hydroxyl or a hydroxy-(C2-4 alkyl) group, or a group of the general formula -NH-CO-R3, wherein R3 stands for a C1-20 alkyl group or a phenyl group optionally substituted by one, two or three identical or different substituent(s) selected from the group consisting of nitro, hydroxyl, amino, C1-3 alkoxy and halogen; a naphthyl group optionally substituted by a hydroxyl group, a phenyl-(C1-3 alkyl) group, a pyridyl, a piperidyl,.a pyrazinyl, a pyrimidyl, a 1,2,4-triazinyl, a furyl, a nitrofuryl or an .alpha.,.alpha.-diphenyl-.alpha.-hydroxymethyl group.       Due to their antimicrobial and weight-gain increasing effects,the new compounds of the general formula (I) can serve as active ingredients, of pharmaceutical or veterinary compositions, particularly fodder concentrates, fodder additives and fodders.       The invention relates also to the preparAation of the new compounds of the general formula (I) and the compositions containing same.
Patent CA-1169189-A (CA)
Inventor: KAZAMA SEIJI
IPC: C08G18/18
Filed: 1982-02-08
Granted: 1984-06-12
Abstract: Abstract of the Disclosure A method for curing an isocyanate group-containing compound, which comprises treating with a tertiary amine in a vapor-phase state an isocyanate compound having in one molecule not less than two isocyanate groups linked to an aromatic nucleus through a methylene group or an isocyanate-terminated urethane resin obtained by the reaction thereof with an active-hydrogen contain-ing compound.  The isocyanate compounds or isocyanate-terminated  urethane resins are allowed to cure and dry for a shortened period of time ranging from about 1 to 10 minutes, thus providing high-speed curing.  The method of this invention can be advantageously employed in the fields, such as continuous painting step ant printing step etc.
Patent CA-1174822-A (CA)
Inventor: PAGNONI GIORGIO
IPC: B27N3/22
Filed: 1982-02-08
Granted: 1984-09-25
Abstract: ABSTRACT OF THE DISCLOSURE:           An apparatus for loading an unloading a multi-opening press for manufacturing particle board, having a lower part, an upper part and an intermediate plate between the upper and lower parts defining upper and lower openings. The apparatus comprises, a first endless conveyor movable through the upper opening in a first feed path and formed of a plurality of conveyor sections spaced along said first conveyor and connected together by at least one drive member; and a second endless conveyor movable through the lower opening and in a second feed path.  The first conveyor inter-sects the second feed path and said at least one drive member is positioned on the first conveyor to permit passage of a particle board on the second feed path to the second conveyor when each of the conveyor sections is spaced away from a location of intersection of the first conveyor and the second feed path.
Patent CA-1192427-A (CA)
Inventor: BOUVARD ANDRE
IPC: G02B6/24
Filed: 1982-03-01
Granted: 1985-08-27
Abstract: A DEVICE FOR CONNECTING ON SITE TWO OPTICAL     FIBER TRANSMISSION CABLES     ABSTRACT OF THE DISCLOSURE     A device for connecting on site two optical fiber transmission cables comprises a table for ins-tallation in a cable tunnel on the site and which is provided with a notch on its circumference, a tight box which bears against the table and whereof the two lateral faces have two openings in which are engaged the two cables to be connected, a splicing bench posi-tioned in the table notch and on which are arranged tools for splicing the two cables, and means for joining the bench to the table.
Patent CA-1179286-A (CA)
Title: Procede d'hydrotraitement d'hydrocarbures lourds en  presence de metaux reduits
Inventor: TRINH DINH CHAN
IPC: B01J31/22
Filed: 1982-03-31
Granted: 1984-12-11
Abstract: L'invention concerne un procédé d'hydrotraitement d'une charge lourde d'hydrocarbures, contenant du soufre et des asphaltènes et/ou des résines, en phase liquide, dans lequel on met ladite charge et de l'hydrogène au contact d'un catalyseur, à un température de 250 à 500.degree.C et sous une pression de 20 à 350 bars. Le procédé est caractérisé en ce qu'on utilise un catalyseur préparé par mise en réaction préalable, dans un hydrocarbure, d'au moins un composé organique de métal de transition, avec au moins un composé organoaluminique, en l'absence d'asphaltène et de résine, le métal du composé organique étant choisi dans le groupe constitué par le titane, le zirconium, le vanadium, le chrome, le molybdène, le tungstène, le manganèse, le rhénium, le fer, le ruthénium, le cobalt, le nickel, le cuivre, le zinc et l'étain. Le traitement catalytique du procédé de l'invention permet l'élimination des polluants comme le soufre et les composés nocifs au stads du raffinage tels que l'azote, l'oxygène, le métaux, en particulier le nickel et le vanadium et les asphaltènes, pour que l'étape ultérieure d'hydrocraquage ou de craquage catalytique de ces résidus lourds en produits légers de valeur, tels que l'essence et le gazole, soit possible.
Patent CA-1196741-A (CA)
Inventor: WASSERMAN PHILIP D
IPC: H04M11/00
Filed: 1982-09-27
Granted: 1985-11-12
Abstract: ABSTRACT OF DISCLOSURE      A technique for reducing the nonlinear frequency character-istics of a carbon granule microphone of the type generally used in telephone handsets wherein a tone outside the voice range is applied to the microphone simultaneously with the audio signal desired to be transmitted.  This technique has particular advan-tages with telephone modems, especially those where the sending and receiving frequencies are harmonically related.
Patent CA-1205661-A (CA)
Inventor: BLINOW IGOR
IPC: G03B15/02
Filed: 1982-10-21
Granted: 1986-06-10
Abstract: ABSTRACT OF THE DISCLOSURE         A strobe lighting unit - and a reflector assembly forming part thereof - include a concave reflector having a predetermined shape, typically including a parabolic cross-section.  The reflector is formed in situ as part of an assembly process by pressing a thin precut planar blank of reflective material, preferably an aluminum alloy foil having selected mechanical properties, into a die cavity in the reflector housing with a conforming die plunger to bend the blank into the predetermined shape.  During the bending process residual tension forces are induced intentionally into the blank and these forces urge the foil into contact with surfaces defining the die cavity to supportively maintain the reflector in the predetermined shape.
Patent CA-1197993-A (CA)
Inventor: ANITOFF OLEG
IPC: G01J1/42
Filed: 1982-11-08
Granted: 1985-12-17
Abstract: ABSTRACT OF THE DISCLOSURE The invention relates to an apparatus and to a process for measuring the energy supplied in particular by a pulsed laser beam.        The apparatus comprises a material having a high dipole moment and freely orientable dipoles. This material is able to absorb the energy supplied by the beam, the interaction of the beam and the material leading to a temperature rise in the latter, which is proportional to the energy absorbed. This leads to a variation in the dielectric constant of the material. In addition, means are provided which make it possible to measure the variation of the dielectric constant.            (Fig 2).     B 7355.3 LC
Patent CA-1191511-A (CA)
Inventor: NADELSON JEFFREY
IPC: C07D295/12
Filed: 1982-12-13
Granted: 1985-08-06
Abstract: N,N-DISUBSTITUTED ALKENAMIDES AND PHENYLALKENAMIDES, PROCESSES FOR THEIR PRODUCTION AND THEIR USE AS PHARMACEUTICALS          Abstract:       Alkenamides and phenylalkenamides having the formula I       wherein n  represents 0 or 1 R  represents C1-4alkyl or the group   wherein R2 and R3 represent independently C1-4alkyl or together with the nitrogen atom to which they are attached pyrrolidino, piperidino, hexamethyleneimino or morpholino R1 and R4 represent independently halogen C1-4alkyl or C1-4-alkoxy and R5 represents hydrogen or C1-6alkyl, and acid addition salts thereof.  The compounds are useful as pharmaceuticals particularly as agents for treating diabetes.
Patent CA-1182077-A (CA)
Inventor: JOHANNSON RICHARD J
IPC: B66F9/12
Filed: 1982-12-13
Granted: 1985-02-05
Abstract: FORK POSITION RETAINER                      Abstract A lift truck carriage is provided with a cylindrical bar upon which the forks may be mounted. The forks are each retained in any desired position along the bar by a clamp located between a pair of mounting sleeves, and may be rotated about the axis of the bar into a stowed position without having to unlock the clamping member.
Patent CA-1194086-A (CA)
Inventor: MORRIS MERLE E
IPC: G03G15/04
Filed: 1983-01-27
Granted: 1985-09-24
Abstract: TUBULAR INCANDESCENT LAMP                        ABSTRACT OF THE DISCLOSURE     A tubular incandescent lamp for use in a fusing type lamp in a photocopy machine in which the lamp filament means is capable of operation at two different lengths on a selective basis as a function of the different lengths of paper that are to be reproduced by the copier.  In one embodiment the filament means comprises a single linear filament with the contacts being taken at opposite ends of the filament for full length reproduction and along a predetermined length of the filament or shorter length of reproduction.  In an alternate embodiment of the invention, two different length filaments are employed, each one selectively and mutually exclusively operated.
Patent CA-1196373-A (CA)
Inventor: ROBERTSON JOHN W JR
IPC: G05B11/28
Filed: 1983-03-25
Granted: 1985-11-05
Abstract: VARIABLE FREQUENCY CONSTANT TORQUE CONTROLLER                   ABSTRACT OF THE DISCLOSURE       A controller for an induction motor used as a servo positioner comprises a position control module including a microprocessor with memory for generating a plurality of pulse width modulated waveforms.  The module includes an analog to digital converter for con-verting one of four analog signals into digital signals readable by the microprocessor.  The analog signals correspond to a gain signal, a feedback signal, a set point signal and a dead band signal.  The module also receives digital signals for programming purposes.  The microprocessor is programmed to initialize conditions and convert the analog signals.      The module is included in a three phase drive controller which has drivers connected to the module for receiving the waveforms and generating correspond-ing AC inputs to the three phase motor.  An overcurrent detector is provided for sensing overcurrents in the AC signals and for generating an interrupt signal which is applied to the module for interrupting the function thereof.  The module according to its programming can be placed in one of three modes for interface with a broad spectrum of automatic control systems.  The modes include automatic-analog automatic-pulse, and closed-contact controls.
Patent CA-1198192-A (CA)
Inventor: MORRISON TERRY
IPC: F02C9/28
Filed: 1983-04-12
Granted: 1985-12-17
Abstract: Helicopter Cruise Fuel Conserving Engine Control Abstract A digital fuel control (53) for a helicopter engine (20) controls fuel flow (52) to the engine in response to a turbine reference speed (62) determined in a normal mode (Fig. 5) to be a rated speed, in a fade-in mode (Fig. 6) to be incremented (117, 120) to an estimated optimum minimum speed (114, 115, 125), in an optimizer mode (Fig. 7) to be incremented (138) in a direction (137) leading to least fuel consumption (135), and in a fade-out mode (Fig. 8) to be incremented (151, 153) back to rated speed (154).  The invention provides an engine reference speed which results in minimum fuel consumption during cruise flight.
Patent CA-1186486-A (CA)
Inventor: STERMOLE DAVID A
IPC: C01B11/06
Filed: 1983-04-25
Granted: 1985-05-07
Abstract: ABSTRACT OF THE DISCLOSURE:        Calcium hypochlorite particles and larger separable sodium chloride crystals produced in a process for manufacturing calcium hypochlorite are effectively separated by use of a staged upward-flow elutriator-classifier. In particular, an aqueous slurry of the calcium hypochlorite particles and sodium chloride crystals are introduced into about the mid-point of the classifier and elutriated with fluid substantially saturated in calcium hypochlorite and sodium chloride.  A first slurry in which the solid phase is predominantly calcium hypochlorite, e.g., at least 95 weight percent, is removed as overflow from the top of the classifier, and a second slurry in which the solid phase is predominantly sodium chloride is removed as underflow from the bottom of the classifier.  In one embodiment, the first slurry is separated into a wet cake of calcium hypochlorite and bleach mother liquor, a portion of which liquor is used as elutriating fluid.  The second slurry is separated into a wet cake of sodium chloride and salt mother liquor, which liquor is recycled to the bottom of the classifier.  The wet cake of sodium chloride is washed with a fluid unsaturated in calcium hypochlorite and the washed sodium chloride recovered.
Patent CA-1205138-A (CA)
Inventor: TANI KOZABURO
IPC: G08B17/00
Filed: 1983-06-28
Granted: 1986-05-27
Abstract: SECURITY ALARM SYSTEM     ABSTRACT OF THE DISCLOSURE        A security alarm system comprising a plurality or sensors for detecting emergencies in a predetermined guard area, a transmitter-receiver for converting the emergency data into electric signals and transmitting the electric signals via a radio, a repeater for receiving the electric signals from the transmitter-receiver and transmitting the signal to a security controller, a security controller for setting a guard mode such as "start watch", and "release the watch" and transmitting the emergency and ordinary data to a central station through a transmission line such as a telephone cable or : personal circuit.  Moreover said security alarm system is connected to a central station for supervising the predetermined guard area based on the data from this and other security controllers.
Patent CA-1218475-A (CA)
Title: Treatment and prevention of fouled water treatment solids
Inventor: OBERHOFER ALFRED W
IPC: C02F1/50
Filed: 1983-07-26
Granted: 1987-02-24
Abstract: Described are processes for improving and maintaining the performance of particulate and other types of water-treat-ment solids, especially particulate ion exchange resins, filter media, and adsorbents which have become fouled with organic contaminants, micro-organisms, and wasteproducts thereof. These contaminants are reduced by treating these water-treat-ment solids either batchwise or, preferably, cyclically with a water solution of an effective amount of both a non-ionic surfactant and a biodispersant.
Patent CA-1201336-A (CA)
Inventor: LEAH GEORGE R
IPC: B05D7/14
Filed: 1983-08-10
Granted: 1986-03-04
Abstract: - i -Abstract of the Invention Acid cured, polymer protective layers are bonded to metal or cement surfaces using a primer coating of an acid stable, thermoplastic elastomer such as a block copolymer of styrene-butadiene.