baber/WOPTO huggingface dataset:
Patent CA-2014604-A1 (CA)
Title: Efficient initial power-up technique for a switching power supply
Inventor: BASTIJANIC EDWARD
IPC: H02M1/00
Filed: 1990-04-12
Abstract: ABSTRACT OF THE DISCLOSURE          A  switching  power supply  comprises  a  transformer having primary and secondary windings with a control circuit connected  to  the  power  transistor  for  controlling  current passing  through  the  primary  winding.   The  power-up  circuit includes transistors in a Darlington configuration which charge a  capacitor  that  is  connected  to  the  input  of  a  control circuit.   The control circuit operates a power  transistor  to regulate  the  flow  of  current  through  the  primary  winding. Regulated voltage at the control circuit is  reached with  the aid of a zener diode which is connected to the input of the Darlington configuration.  One of the secondary windings of the transformer is connected to a second capacitor which in turn in connected,  through  a  diode,  to  the  input  of  the  control circuit.   As current flows through  the secondary,  the second capacitor is charged to take over the function of supplying the control  voltage  to  the  control  circuit.   As  the  second capacitor  charges  to  above  the  zener  voltage  of  the  zener diode,  the reverse bias switches the Darlington configuration off thereby eliminating this source of drain from power lines that are connected to the primary winding.
Patent CA-2015594-A1 (CA)
Title: Fail-safe method for updating system information stored in a memory
Inventor: NAKAGAWA TATSUHIKO
IPC: G06F13/00
Filed: 1990-04-27
Abstract: ABSTRACT           A method for updating system information in a micro-computer-based system involving the step of writing the first unique word representing the progress of data updating process into one of the duplex memories.  The data in one of the duplex memories is updated.  The first unique word is rewritten to the second unique word representing termination of data updating process after the data stored in the one of duplex memory has been updated.  The first unique word representing the progress of data updating process is written into another one of the duplex memories.  The data updating process identical to the data updating process performed in the one duplex memory is done in the other duplex memory.  The first unique word is written to the second unique word after the data stored in the other duplex memory has been updated.  The invention prevents abnormal restart even if updating is suspended due to problems.
Patent CA-2016613-A1 (CA)
Title: Adsorptive process for producing two gas streams from a gas mixture
Inventor: KUMAR RAVI
IPC: C01B32/50
Filed: 1990-05-11
Abstract: An adsorptive separation process is set forth for recovery of two gas products in high recovery and high purity using adsorption, depressurization low pressure purge, evacuation and repressurization.  Depressurization and purge effluents are recycled to feed and optionally pressure equalizations are performed after the adsorption and after the evacuation as well as a pressure equalization using the low pressure purge effluent.
Patent CA-2022672-A1 (CA)
Title: Method of stabilizing the laser beam and apparatus utilizing the same
Inventor: TERADA MITSUGU
IPC: H01S3/137
Filed: 1990-08-03
Abstract: ABSTRACT OF THE DISCLOSURE    According to the invention, a probe laser beam having a wavelength which is different from that of the laser beam emitted from an laser apparatus is introduced into the apparatus to adjust the optical device so that any fluctuations in the probe laser beam passing through or reflected from the optical device may be eliminated.          Therefore, any fluctuations in output power and/or the oscillation wavelength of the narrowed bandwidth laser beam emitted from the apparatus can be directly detected and the laser apparatus can be so controlled as to ensure a stabilized operation under an optimum condition.
Patent CA-2024307-A1 (CA)
Inventor: EHRET PHILIPPE
IPC: D04H1/435
Filed: 1990-08-30
Abstract: Abrégé descriptif L'objet de l'invention consiste en fibres et/ou tissus, particulièrement en non-tissés, qui contiennent jusqu'à une proportion de 15 % en poids un ou des sels solubles dans l'eau. Ce ou ces sels, en outre, doivent avoir un point de fusion ou de décomposition nettement supérieur à celui des fibres ou tissus, ne pas altérer les propriétés mécanique du produit en l'absence d'eau et être neutres ou bénéfiques à l'égard des plantes et organismes du sol. Leur incorporation s'effectue au cours de la fabrication des fibres ou tissus. Lorsque les produits entrent en contact avec l'eau, les sels se dissolvent et créent des cavités, ouvrant ainsi la voie à l'action des bactéries et autres microorganismes et/ou provoquant la dégradation en fragments plus petits et plus propres à la biodégradation. Devenus déchets après usage, ces produits se dégradent dans les décharges ou les sols en respectant l'environnement.
Patent CA-2024702-A1 (CA)
Title: Telephone system
Inventor: LEVANTO LAURI
IPC: H04W68/00
Filed: 1990-09-05
Abstract: The invention relates to a telephone system with which a connection between two subscribers can be established, at least one of them being a mobile subscriber. The system includes a paging network composed of one or several exten-sive paging ranges, each of them having a paging transmitter (H1,H2) of its own, a small cellular network with an exchange and a plurality of base stations (T), and mobile telephones with which a pager has been integrated.      When calling a mobile telephone, the transmitter of the paging range in which the telephone is known or assumed to be transmits a paging message to the telephone, whereby, when the telephone is in the neighbourhood of the base station, the exchange of the cellular network establishes immediately a connection between the subscribers. No paging calls are lost because they are stored in the exchange of the cellular network, and on an appropriate occasion the pager of the telephone and the exchange compare the paging messages stored in the memories. In the disclosed system the call can be transmitted from one base station to another during the call (handover).
Patent CA-2024753-A1 (CA)
Inventor: TANAKA HARUO
IPC: B23Q7/02
Filed: 1990-09-06
Abstract: ABSTRACT OF THE DISCLOSURE         An apparatus  for assembling workpieces  in which an assembling work is performed which comprises a workpiece setting jig, a setting station including a workpiece setting apparatus for setting  a  first workpiece  on the workpiece  setting  jig,  an assembling station including an assembling unit for assembling a second workpiece with the first workpiece on the workpiece setting jig, a welding station including a welding unit for welding the first and the second workpieces together, a discharging station including a discharging unit for taking the welded workpieces out of the workpiece setting jig, a charging station provided in a position which faces the setting station as seen in the direction of sending and withdrawing the workpiece setting jig.  The charging station,  the assembling station,  the welding station and the discharging station being arranged in a circular form.  A mechanism is provided for circulating the workpiece setting jig among the charging station, the assembling station, the welding station and the discharging station in sequence.   A mechanism is provided for reciprocating the workpiece setting jig between the setting station and the charging station.   The method of assembling workpieces comprises disposing the charging station in a position facing the setting station, and disposing the charging station, the assembling station, the welding station, and the discharging station in a circular form to a side of the setting station;  setting a first workpiece on the jig at the setting station; transferring the jig from the setting station to the charging station; intermittently transferring in sequence (2) the jig from the charging station to the assembling station, the welding station and the discharging station; assembling a second workpiece with the first workpiece which has been set on the jig while the jig is at the assembly station; welding the first and the second workpieces together at the welding station; discharging the welded workpieces off the jig while at the discharge station; and returning the emptied jig from the charging station to the setting station.
Patent CA-2027372-A1 (CA)
Title: Viscosity index improver
Inventor: CHUNG DAVID YEN-L
IPC: B29C48/82
Filed: 1990-10-11
Abstract: Degraded molecular weight copolymers of ethylene alpha-olefin are provided. The ethylene alpha-olefin copolymers, before degradation, are characterized by having a narrow molecular weight distribution and are comprised of intramolecularly heterogeneous and intermolecularly homogeneous copolymer chains. The degraded copolymers are useful as viscosity index improvers for oils.
Patent CA-2031734-A1 (CA)
Title: Semiconductor device
Inventor: NAKAMURA HITOSHI
IPC: H01L31/0352
Filed: 1990-12-07
Abstract: Abstract Disclosed herein is a semiconductor device comprising a region in which carriers are transferred in the lamination direction of a multiple quantum well.  A multiple quantum well multiplication layer according to the present invention can be found in a superlattice APD device, wherein a superlattice structure with a varying well width is introduced to a hetero-interface present in the transfer region, thereby preventing a pile-up of the carriers.
Patent CA-2034073-A1 (CA)
Title: Applicator apparatus
Inventor: KOSKINEN JUKKA
IPC: B05C1/14
Filed: 1991-01-11
Abstract: (57) ABSTRACT OF THE DISCLOSURE            This publication discloses an applicator apparatus for the coating of webs, particularly of paper webs, said apparatus having the application roll replaced by a glide shoe (8) and a wire (6). The wire (6) passes over two idler rolls (7) and a glide shoe (8). The glide shoe (8) is pressed against the backing roll (1) by means of a pressurized loading hose (93, which provides for the compensation of the bending in the glide shoe (8) and the backing roll (1). The web (5) to be coated passes through the nip formed between the backing roll (1) and the wire (6), and the coating mix lifted by the wire (6) from the coating mix pan is adhered to the surface of the web (5) in said nip. The invention aims to achieve a stable flow of the coating mix in the nip by reducing the averaged radius of curvature of the surfaces facing each other in the nip.            (Figure 3)
Patent CA-2038640-A1 (CA)
Title: Laundry material
Inventor: GOSSET SERGE
IPC: C11D3/12
Filed: 1991-03-19
Abstract: LAUNDRY MATERIAL     A B S T R A C T            Laundry material having a phosphate content reduced to less than 5% by weight and even equal to zero, especially adapted  for  washing  fabrics,  comprising  at  least  one zeolite and at least one oxidized polysaccharide selected from the group comprising: a) the products resulting from the oxidation of disaccha-rides presenting a terminal function of the aldonic type, b) the products resulting from the oxidation of trisaccha-rides and of oligosaccharides presenting a terminal function of the aldonic type, c) the products resulting from the oxidation of starch hydrolysates, of cellulose and hemicelluloses present-ing a terminal function of the aldonic type, d) any mixtures of at least two of the above-identified oxidation products.         No figure.
Patent CA-2042358-A1 (CA)
Inventor: FITE FRANKLIN D JR
IPC: H04L12/56
Filed: 1990-11-02
Abstract: An arrangement is disclosed for recovering from faults in transmission equipment or facilities forming so-called virtual circuits for transmitting packets in a network. Faults are detected in transmission paths associated with a network node and a fault indication message is generated for each virtual circuit passing through the node that is affected by the fault. The fault indication messages are then transmitted on corresponding ones of the affected virtual circuits. If any of the affected virtual circuits are terminated in the node, they are switched to alternate virtual circuits. Otherwise, the fault indication messages are transmitted on corresponding virtual circuits over facilities connected to the node to other unknown nodes. A node receiving a fault indication message determines whether the corresponding virtual circuit is terminated at the node or passes through it to some other unknown node. If an affected virtual circuit is terminated in the node, it is switched to an alternate virtual circuit. If the affected virtual circuit is notterminated in the node, the corresponding fault indication message is passed through it on that virtual circuit over a facility to some other unknown node.
Patent CA-2046443-A1 (CA)
Title: 1-hydroxyindole fungicides
Inventor: SCHLEIGH WILLIAM R
IPC: C07D209/08
Filed: 1991-07-08
Abstract: Abstract of the Disclosure 1-Hydroxyindoles of the following formula are useful in controlling fungi:                               wherein:         R1 is hydrogen or an electron withdrawing group, R2 is selected from the group consisting of an alkenyl having 2-10 carbon atoms, a N-substituted- .alpha.-iminobenzyl,  an unsubstituted or substituted aromatic group and an acyl of 2-16 carbon atoms, R3 is selected from the group consisting of a halogen atom, and n is an integer from 0 to 4.
Patent CA-2047038-A1 (CA)
Inventor: CHARLTON STEVEN C
IPC: G01N33/48
Filed: 1991-07-15
Abstract: ABSTRACT OF THE DISCLOSURE A diagnostic device detects blood analytes with a sample volume as low as 2 microliters in the hematocrit range of 0% to 60%, or higher. This is accomplished by employing a housing with various chambers and compartments for processing the blood.  A sample application port in the housing is used to introduce blood into a metering chamber.  From the metering chamber, the blood flows to a reaction chamber for analyzing blood analytes.  Blood entering the metering chamber flows into a fluid capillary which indicates that an adequate amount of blood has been received in the metering chamber. The reaction compartment includes a reagent and a filter, the latter of which is disposed between the metering chamber and the reagent so that the reagent reacts with the filtered blood.
Patent CA-2052665-A1 (CA)
Title: Lubricating system
Inventor: GREGORY KENNETH L
IPC: F16N29/00
Filed: 1991-10-02
Abstract: An improved lubricating system for lubrication of equipment bearings comprising: an air supply subsystem, art oil supply subsystem and an oil mist generation subsystem. The oil mist generation subsystem is connected to the air supply and oil supply subsystems for combining air and oil therefrom into an oil mist for distribution to the equipment bearings. A computerized controller is connected to the air supply, oil supply and oil mist generating subsystem for controlling and monitoring the operating conditions of the system.
Patent CA-2053171-A1 (CA)
Title: Adjustable lower door edge seal assembly for exterior door and storm door
Inventor: KNAPP STEVEN E
IPC: E06B7/23
Filed: 1991-10-10
Abstract: ADJUSTABLE LOWER EDGE SEAL ASSEMBLY FOR EXTERIOR DOOR                 Abstract of the Disclosure An adjustable lower edge seal assembly for an exterior door whereby to seal the bottom edge of the door with the floor below the door frame or a door threshold.          The assembly comprises an elongated sealing strip member having  a  seal  carrying  base  and  a  transverse  edge attachment flange which is secured to an outer face of a door adjacent the lower edge thereof.    A flexible seal projects outwardly of the base.    The flange is also provided with holes to receive fasteners to secure it to the lower edge wall  of the door.    The base is also provided  with  an  adjustable  connector  to  receive  a connector flange of a stabilizing connector strip  member therein.   The stabilizing connector strip member has an abutment  wall  to  abut  an  opposed  face  of  the  door adjacent an opposed lower edge of the door.
Patent CA-2053610-A1 (CA)
Title: Single branch circuit breaker support
Inventor: WALL ROBERT A JR
IPC: H02B1/056
Filed: 1991-10-17
Abstract: compact single branch circuit breaker insulative support used within lighting panelboards is converted from an existing double branch support with minor alterations. The single branch circuit breaker arrangement allows the circuit breakers to be arranged in a closely-packed configuration within the lighting panelboard enclosure.
Patent CA-2057116-A1 (CA)
Inventor: TULTS JURI
IPC: G01R23/10
Filed: 1991-12-05
Abstract: A tuning system of a television receiver includes a digital automatic fine tuning (AFT) unit for generating a digital AFT signal representing the deviation of the frequency of the picture carrier of the IF signal from a nominal frequency value. The digital AFT unit includes a counter for counting cycles of picture carrier during counting intervals. A portion of the IF section, the counter and at least of a portion of the signal processing section of the television receiver are included within a single integrated circuit. A microprocessor is coupled to the integrated circuit through a serial data bus. Under software program control, the microprocessor (1) transmits function control and counting control information to the signal processing section through the serial data bus, (2) receives count information from the counter through the serial data bus, and (3) evaluates count information to determine the deviation of the frequency of the IF picture carrier from its nominal frequency value.
Patent CA-2061598-A1 (CA)
Title: Flat steel anchor for a pre-cast concrete
Inventor: FRICKER SIEGFRIED
IPC: B66C1/66
Filed: 1992-02-20
Abstract: A flat steel anchor for a pre-cast concrete component is comprised of an anchoring portion to be positioned within the concrete component and a connecting portion protruding from the concrete component. The anchoring portion has lateral bars that enclose therebetween a first opening with a first opening cross-section in a plane of the flat steel anchor. The lateral bars are oppositely bent relative to one another and relative to the plane of the flat steel anchor. The respective outer curved planes of the lateral bars form anchoring surfaces of the anchoring portion. The first opening has a second opening cross-section in a plane perpendicular to the plane of the flat steel anchor defined by respective inner curvatures of the lateral bars. The connecting portion has a second opening for receiving a lifting device.
Patent CA-2062605-A1 (CA)
Inventor: HUBER DAVID R
IPC: H04B10/588
Filed: 1992-03-10
Abstract: Non-linear effects in an optical fiber used for communicating AM signals at high power levels are reduced by increasing the linewidth of the pump laser output signal.  The linewidth can be increased by optically broadening the laser output signal by driving an optical angle modulator with broadband electrical noise.  The optical signal is then externally modulated with an AM information signal for transmission over an optical link fiber.  The optical modulation can be provided using either an FM or PM optical modulator.  A desired linewidth can be provided by controlling the optical modulation index during the optical modulation step and/or by controlling the bandwidth of the noise source. Other techniques for broadening a laser output signal, including modulating the signal by a periodic function such as a sine wave, or injecting spontaneous emissions into the laser cavity, are also disclosed.
Patent CA-2063080-A1 (CA)
Inventor: CHAPDELAINE ALBERT H
IPC: A23G4/10
Filed: 1992-03-13
Abstract: A method is disclosed for preparing a sugarless chewing gum using free water as an ingredient in the gum formulation.  A sugarless chewing gum composition containing free water is also provided.
Patent CA-2064322-A1 (CA)
Title: Cyanoketone derivative and herbicide containing it as an active component
Inventor: ISHIZAKI MASAHIKO
IPC: A01N43/50
Filed: 1992-03-27
Abstract: Disclosed are a cyanoketone derivative of the formula, (see fig.I) (wherein:         A1 is a cyclic group selected from the group consisting of phenyl, naphthyl and a five- or six-membered heterocyclic group which may be fused and which has at least one hetero atom selected from the group consisting of oxygen, sulfur and nitrogen atoms, wherein the said cyclic group may have at least one substituent selected from the group consisting of halogen, C1-4alkyl, halogeno-C1-4alkyl, C1-4alkoxy, C1-4alkylthio, C1-6alkoxy-carbonyl, nitro and cyano;         X1, X2 and X3 are each independently an oxygen or sulfur atom;         B1, B2 and B3 are each independently a hydrogen atom or a C1-6alkyl group;         Y1, Y2, Y3 and Y4 are each lndependently a hydrogen or halogen atom or a C1-6alkyl group; and A2 is a C1-6alkyl group, a linear or branched alkenyl group, cyclohexyl, a C2-6alkynyl group, a C1-4alkoxy group, a C1-4alkylthio group, a C1-6alkoxy-carbonyl group, benzoyl, cyano, phenyl, naphthyl or a five- or six-membered heterocyclic group which may be fused and which has at least one hetero atom selected from the group consisting of oxygen, sulfur and nitrogen atoms, wherein the C1-6alkyl group may have at least one substituent selected from the group consisting of halogen, C1-4alkoxy, C1-4alkylthio, tetrahydrofuryl and cyano, the benzoyl may have a chlorine atom, substituent, and the phenyl, naphthyl and heterocyclic groups may each have at least one substituent selected from the group consisting of halogen, C1-4alkyl, haloyeno-C1-4alkyl, C1-4alkoxy, C1-4alkylthio, C1-6alkoxy-carbonyl, nitro and cyano), provided that when B1 is a hydrogen atom and B2 is a C1-6alkyl group, then the compound of the formula (1) is any one of two enantiomers with regard to the asymmetric carbon atom to which B1 and B2 are bonded, or a mixture of these enantiomers, and a herbicide composition containing it as an active component.
Patent CA-2064693-A1 (CA)
Inventor: NAKAJIMA HIDEO
IPC: B60R21/16
Filed: 1990-05-30
Abstract: ABSTRACT OF THE DISCLOSURE    In an air bag of an air bag unit (1), which comprises an opening (9) where an inflator (2) to be operated in an emergency is penetrating, and exhaust holes (8) to release the pressure in the air bag (3) furnished around said opening (9), said exhaust holes (8) are located at the points where warps (11) and wefts (10) of woven cloth of the air bag (3) are crossing diagonally the straight line, which connects the centers of said exhaust holes (8) with the center of said opening (9).  As the result, the stress occur-ring around the exhaust holes (8) is supported by both the warps (11) and the wefts (10) of woven cloth of the air bag (3).  Accordingly, the rupture is very unlikely to occur around the exhaust holes (8) of the air bag compared with a conventional type air bag where the stress is supported only either by the warps or by the wefts.  Thus, the rupture at the exhaust holes (8) of the air bag (3) can be perfectly prevented, and the reliability of the air bag (3) can be extensively improved.
Patent CA-2066029-A1 (CA)
Title: Yttrium and rare earth compounds catalyzed lactone polymerization
Inventor: MCLAIN STEPHEN J
IPC: C08G63/82
Filed: 1990-09-05
Abstract: Process for yttrium and rare earth compound catalyzed polymerization of lactones and the living polymer compositions of such polymerizations, novel polyester products of such polymerizations and novel yttrium and rare earth metal compounds useful as catalysts in the polymerization of biodegradable polymers for medical uses and flexible films for packaging.