baber/WOPTO huggingface dataset:
Patent CA-2038063-C (CA)
Title: Monitoring system for step-type switching transformer
Inventor: DOHNAL DIETER
IPC: H01F29/04
Filed: 1991-03-12
Granted: 1999-12-07
Abstract: A multiphase stepping transformer wherein a closed vacuum interrupter at each phase is opened before a respective stepping switch is advanced is controlled by continuously monitoring current flow through the interrupters. Before the interrupters are opened an error signal is generated unless all of the monitored current flows lie to one side of a predetermined threshold. After the interrupters are opened an error signal is generated if current flow is detected through any of the interrupters. Advance of the stepping switches is blocked on generation of any error signal. The apparatus includes for each interrupter a respective current detector, a light-emitting diode energized by the respective detector, a light receiver associated with each diode, and a light-transmitting cable connecting each diode with the respective receiver.
Patent CA-2041676-C (CA)
Title: Draft tube, direct contact crystallizer
Inventor: CHENG ALAN TAT-YAN
IPC: B01J8/22
Filed: 1991-05-02
Granted: 1998-07-07
Abstract: A direct contact crystallizer having a vertically oriented draft tube into which gas or vaporized liquid is injected and through which a crystal slurry is drawn for cooling and agitation.
Patent CA-2044581-C (CA)
Title: An electro-abrasive polishing process of the inner surface of pipes to extra-smooth mirror finish
Inventor: SEIMIYA KOUICHI
IPC: B24B37/00
Filed: 1990-10-30
Granted: 1996-11-19
Abstract: An electro-abrasive polishing process of the inner surface of pipes to an extra-smooth mirror finish com-prises a preliminary-polishing process and a subsequent mirror-finishing process. The preliminary-polishing process is continued until the roughness of the inner surface of the small-diameter pipe is reduced to at least 0.5 µm Rmax or less by electro-abrasive polishing process of the inner surface of the small-diameter pipe by inserting a preliminary-polishing tool electrode comprising a core electrode wrapped with a non-woven nylon sheet in the small-diameter pipe to be polished and passing a small amount of current through the elec-trolyte between the small-diameter pipe that serves as the anode and the tool electrode that serves as the cathode and, at the same, time, by mechanically polishing the inner surface of the small-diameter pipe by rotating the tool electrode and axially reciprocating it or the small-diameter pipe relative to each other. In the subsequent mirror-finishing process, similar polishing operations are repeated using a mirror-finishing tool electrode that comprises a core electrode wrapped with urethane sheet. The preliminary-polishing process is switched to the subsequent mirror-finishing process in appropriate timing. As the electrolytic decomposition by the preliminary-polishing and mirror-finishing tools and the rotation of the tools and axial reciprocation of them or the small-diameter pipe relative to each other in the two processes work so effectively that the original surface roughness of approximately 3 µm Rmax is reduced to a mirror finish level of approximately tens of nanometer.
Patent CA-2045302-C (CA)
Title: Hinge
Inventor: DUBACH FREDI
IPC: E05D5/02
Filed: 1991-06-24
Granted: 1996-03-26
Abstract: A hinge, in particular a folding door hinge, having a hinge arm     which may be mounted by means of a base plate on a furniture unit part. The hinge arm     may be adjusted in two dimensions on the base plate      and is connected via at least one joint pin      to a hinge pot. The end      of the hinge arm     facing the joint pin ins angled off and there is mounted on this end   a linearly displaceable extension part     which carries the joint pin.
Patent CA-2046767-C (CA)
Title: Bi-stable interlock arrangement for molded case circuit breakers
Inventor: YEE EDGAR
IPC: H01H9/26
Filed: 1991-07-11
Granted: 2002-06-04
Abstract: A bi-stable interlock arrangement allows two circuit inter-ruption devices such as electric circuit breakers and electric disconnect switches to be interlocked such that only one such device can be turned ON at one time. The interlock is used with main and auxiliary power sources to ensure that only one source of electrical power is activated at one time.
Patent CA-2051194-C (CA)
Inventor: FOURNOL DANIEL
IPC: A62B7/14
Filed: 1991-09-11
Granted: 2002-07-16
Abstract: Dispositif destiné à assurer la protection physiologique des pilotes d'avion contre les effets de l'altitude et des accélérations, comportant une source d'oxygène, un gilet de poitrine muni d'au moins une vessie de gonflage raccordée par une tuyauterie à un détendeur monté sur une source de gaz sous pression, un masque à oxygène raccordé à une source d'oxygène par un conduit et un détendeur, un pantalon anti-G comportant au moins une vessie de gonflage raccordée à un détendeur, lui-même monté sur une source de gaz sous pression, des moyens pour détecter les accélérations élaborant un signal représentatif de l'accélération caractérisé en ce que le conduit de raccordement du masque à la source d'oxygène comporte un volume déformable situé à l'intérieur de la vessie de gonflage du gilet de poitrine.
Patent CA-2053740-C (CA)
Inventor: GERONIMI FRANCOIS
IPC: G06F21/62
Filed: 1991-10-18
Granted: 1995-08-29
Abstract: Le procédé est applicable aux cartes à mémoire à micro-circuit comportant un organe de traitement de données et un dispositif de mémorisation pour l'enregistrement d'un code secret et des données fournies à la carte. Il consiste à déterminer dans le dispositif de mémorisation au moins une zone de mémoire de taille fixe pour écrire (2) de façon systématique dans cette zone au moins un bit avant chaque présentation d'un code secret et à effacer (9) l'ensemble des bits inscrits dans la zone de taille fixe dès que l'organe de traitement de données constate (7) que le code secret présenté correspond au code secret enregistré dans la carte.
Patent CA-2055352-C (CA)
Title: Primer for the metallisation of substrate surfaces
Inventor: WOLF GERHARD D
IPC: C23C18/28
Filed: 1991-11-13
Granted: 1999-10-26
Abstract: Primers, essentially consisting of a film former or matrix former, an additive, an ionic and/or colloidal nobel metal, a filler and a solvent, are suitable for coating substrate surfaces for subsequent chemical metallisation.
Patent CA-2059081-C (CA)
Inventor: NOVE MARIE-CLAUDE
IPC: H02K9/197
Filed: 1992-01-10
Granted: 2003-09-09
Abstract: An electromagnetic inductor for generating a rotating field for stirring the core of a metal casting while the core is still liquid, which metal casting is to be cooled by external water circulation. The excitation winding which is to be mounted on each of its pole pieces must, prior to this, be fixed around a tubular winding support so as to form an annular winding block. The block is then fitted on the pole piece and locked thereto in reversible manner. The inductor may be used in facilities for continuous casting of steel products.
Patent CA-2059522-C (CA)
Inventor: CANCIO LEOPOLDO V
IPC: B31F1/07
Filed: 1990-08-15
Granted: 1995-02-14
Abstract: An embossed thermoplastic liquid barrier film is disclosed having a visible nonwoven fibrous three-dimensionally em-bossed pattern having raised fiber bosses (5) intersecting other raised fiber bosses (6) in the film on both sides. The films have thicknesses of about 0.5 to about 2 mils and an embossed depth to provide the visible nonwoven fibrous three-dimensionally em-bossed pattern with the film having a soft hand feel.
Patent CA-2060442-C (CA)
Title: Method for recycling the water soluble resin in the injection molded product
Inventor: MAURO JAMES J
IPC: C08J3/12
Filed: 1992-01-31
Granted: 1997-04-22
Abstract: The  present   invention  relates  to  a  method  for recycling   the  water  soluble   resin  from  the  polymer suspension  wherein  dissolving the  core  made  of  water soluble  resin  with  deionized  water  or  some  solution, concentrating  the  resin  by  separating  water  from  the polymer  suspension,  drying   the  concentrated  resin  by completely  removing  the   remained  moisture  therein  to produce dried resin, and crushing and pelletizing the dried resin to make  pellet shaped resin,  thereby the  recovered resin  has the same physical or chemical characteristics as that of virgin resin and can be reused for being mixed with virgin resin.
Patent CA-2061310-C (CA)
Title: Three axis magnetometer sensor field alignment and registration
Inventor: LO ALLEN K
IPC: G01R33/02
Filed: 1992-02-17
Granted: 1998-04-14
Abstract: An alignment process is applied to each sensor (12a-12n) of an array (12) of three axis magnetic sensors to electronically align the three axes of each sensor (12a-12n) after the array (12) has been deployed. The alignment process compensates for each sensor (12a-12n) not being aligned perfectly with the earth's N-S, E-W and vertical magnetic field components. A field registration process is applied to each sensor (12a-12n) of the array that uses a dipole moment detection and localization process and the alignment process combined with a known calibrated dipole source (13) to define the shape of the array (12). The present invention improves the performance of the array of sensors (12a-12n) in detecting magnetic anomalies by digitally compensating for sensor-to-sensor nonalignment and magnetic interferers within interfering range. The alignment process electronically aligns the three axes of each of the sensors (12a-12n) to gain maximum performance from the sensor array (12). Using digital signal processing techniques reduces the physical deployment requirements on the sensors (12a-12n)and their relative positions. The alignment process allows the use of three axisvector magnetometers in a distributed field with out having to lay each sensor (12a-12n) in perfect alignment with the earth's three magnetic axis. This simplifies the deployment requirements and allows for maximizing the system performance.
Patent CA-2061499-C (CA)
Title: Imaging method for manufacture of microdevices
Inventor: NOGUCHI MIYOKO
IPC: G03F7/20
Filed: 1992-02-19
Granted: 1998-02-03
Abstract: An imaging method for imaging a fine pattern having linear features extending along orthogonal first and second directions, is disclosed which method is characterized by: providing a light source having decreased intensity portions at a center thereof and on first and second axes defined to intersect with each other at the center and defined along the first and second directions, respectively; and illuminating the pattern with light from the light source.
Patent CA-2063935-C (CA)
Title: Denture curing apparatus and method
Inventor: TATEOSIAN LOUIS H
IPC: A61C13/15
Filed: 1992-03-25
Granted: 2000-10-31
Abstract: An apparatus and method for curing light curable material using unfiltered light. A vented housing encloses a single lamp filament light source which emits visible light. The light source is positioned above and to the side of the light curable material which is supported on a rotating table during light curing. Light incident to the surface of the light curable material is at least about 50 milliwatts per square centimeter. The light curable material has a surface temperature of at least 150 °F (65.6°C) after 2 minutes.
Patent CA-2064474-C (CA)
Title: Electrically-powered control system for accumulating conveyor
Inventor: GARRITY JAMES R
IPC: B65G47/26
Filed: 1991-05-29
Granted: 1995-03-14
Abstract: A control arrangement for an accumulating conveyor having a plurality of zones includes an electrically-powered sensor in each zone, and a logic circuit associated with each sensor, each logic circuit comprising a first input, a second input from the sensor of its zone, a first output which sends a signal to the activator for that zone, and a second output to send a signal to the input for the next zone.
Patent CA-2065864-C (CA)
Title: Process for preparing saccharide monomeres comprising at least one polymerizable carbonyl-oxyvinyl group
Inventor: MENTECH JULIO
IPC: C07H13/04
Filed: 1991-07-12
Granted: 2001-12-25
Abstract: Method for the preparation of monomers containing at least one polymerisable carbonyloxyvinyl group, of a saccharide chosen from mono-, di- and tri-saccharides, especially from non-reducing mono-, di- and trisaccharides, which consists in reacting the aforementioned saccharide in an aqueous medium with an esterifying reagent containing the aforementioned polymerisable carbonyloxyvinyl group in the presence of a base while the pH of the reaction medium is maintained at a value within the range from 7 to 11 throughout the reaction period. Saccharide monomers containing at least one polymerisable carbonyloxyvinyl group having a controlled degree of substitution.
Patent CA-2074050-C (CA)
Title: Diclofenac sodium plaster
Inventor: OKUYAMA HIROHISA
IPC: A61K31/045
Filed: 1992-07-16
Granted: 2002-06-11
Abstract: A diclofenac sodium plaster has a backing material and a paste spread on the backing material.      The paste is composed of diclofenac sodium, a pene-tration enhancer composed of 1-menthol and propylene glycol, and a hydrophilic base composed principally of a water-soluble polymer.
Patent CA-2074750-C (CA)
Inventor: RAGHAVACHARI PARTHA
IPC: G06F12/16
Filed: 1992-07-28
Granted: 1997-06-17
Abstract: An electronic circuit (10) for controlling and testing up to eight banks (12) of RAMs (14l - 14n) includes a controller portion (20) for controlling accessing of the RAM banks to permit read and write operations to be carried out, and for initiating testing of the RAMs as well.  The circuit (10) also includes a data path portion (22) for detecting parity errors in the data written to and read from the RAMs as well as for detecting errors which occur during testing initiated by thecontrol portion.  An interface portion (24) may also be provided to allow test commands, status information and error data to be communicated to and from the circuit (10) across a four-wire boundary scan bus.
Patent CA-2077415-C (CA)
Title: Wiper for a rotary disk valve
Inventor: MCLENNAN WILLIAM ROSS
IPC: F16L29/00
Filed: 1992-09-02
Granted: 1997-02-04
Abstract: A rotary valve has a wiper member formed from an elastomeric   material,   the   wiper   member   extending circumferentially of the valve seat, and, in an unstressed condition of the wiper member, extending radially inwardly of said valve seat,  the wiper member being operatively positioned for it to wipe clean an outer circumferential surface of the valve member as the valve member is moved from an open position to a closed position, the wiper member being supported for limited movement relative to the valve seat, whereby, upon stressing of the wiper member by the valve member, the wiper member can retract into the valve seat.
Patent CA-2083971-C (CA)
Title: Sliding type magnetic head for magneto-optical recording
Inventor: TAKAHASHI TOMOYUKI
IPC: G11B11/105
Filed: 1992-11-27
Granted: 2004-03-30
Abstract: A sliding type magnetic head for magneto-optical recording which can prevent a jump thereof caused by a variation in profile of a surface of a disk and can realize reduction of a load force and provide a countermeasure against an external impact. A magnetic head body includes a head element having a coil wound on a magnetic core and has a sliding element provided on one side of the head element for slidably contacting with a magneto-optical disk. The magnetic head body is mounted on a gimbal of a slider arm at a position position thereof corresponding to the position of the center of gravity thereof or to a position in the proximity of the position of the center of gravity. The slider arm is supported for pivotal motion on a head arm at a position thereof corresponding to the position of the center of gravity thereof or to a position in the proximity of the position of the center of gravity. A coil spring is interposed between the head arm and the sliding element of the magnetic head body.
Patent CA-2086062-C (CA)
Title: Blow-molded lid for ribbed cups
Inventor: HANSON JOHN FRASER
IPC: B65D43/10
Filed: 1992-12-22
Granted: 2004-03-23
Abstract: A blow-molded lid is provided for closing a cup which has a circular top edge and a rib projecting outwardly from the top edge. The lid includes an outwardly projecting bead which in axial section curves downwardly and inwardly to a radius smaller than the maximum radius of the rib. The bead thus defines an inwardly concave groove adapted to snap over the rib. The lid incorporates a strengthening configuration closely upwardly adjacent to the bead, the strengthening configuration including a step-like formation.
Patent CA-2086343-C (CA)
Title: Sustained release thyroactive composition
Inventor: KRENNING ERIC PAUL
IPC: A61K9/20
Filed: 1992-12-29
Granted: 2004-03-09
Abstract: Disclosed are sustained release dosage forms of liothyronine, in combination with normal or sustained release of thyroxine in a molar ratio of about 1 to 50 : 1, especially 5 to 20 : 1, useful in thyroid hormone replacement therapy. Surprisingly, it is found that by incorporating liothyronine and optionally thyroxine into a prolonged action dosage form in the described ratios, that the side effects associated with thyroid hormone replacement therapy are greatly reduced or eliminated.      The preparation can be a dosage form containing salts of both thyroxine and liothyronine which release in a sustained manner. The preparations will typically contain to 25 µg of liothryronine. Also disclosed are processes of manufacturing the pharmaceutical preparations.      The compositions are useful in treating disease states such as hypothyroidism, hyperthyroidism (in combination with thyrostatic drugs), so-called "TSH" suppressive therapy, and depression.
Patent CA-2087473-C (CA)
Title: Non-chromated oxide coating for aluminum substrates
Inventor: SCHRIEVER MATTHIAS P
IPC: C23C22/83
Filed: 1993-01-18
Granted: 2001-10-16
Abstract: (A.) A process for forming a cobalt conversion coating on a metal substrate, thereby imparting corrosion resistance and paint adhesion properties. The invention was developed as a replacement for the prior art chromic acid process. The profess includes the steps of: (a) providing a cobalt conversion solution comprising an aqueous solution containing a soluble cobalt-III hexavalent complex, the concentration of the cobalt-III hexavalent complex being from about 0.01 mole per liter of solution to the saturation limit of the cobalt-III hexavalent complex, and acetic acid; and (b) contacting the substrate with the solution for a sufficient amount of time, whereby the cobalt conversion coating is formed. The substrate may be aluminum or aluminum alloy, as well as Cd plated, Zn plated, Zn-Ni plated, and steel. The cobalt-III hexavalent complex may be present in the form of [Co(NH3)6]X3 wherein X is C1, Br, NO3, CN, SCN, PO4, SO4, C2H3O2, or CO3. (B.) A chemical conversion coating solution for producing the cobalt conversion coating on a metal substrate, the solution including an aqueous solution containing a soluble cobalt-III hexavalent complex, the concentration of the cobalt-III hexavalent complex being from about 0.01 mole per liter of solution to the saturation limit of the cobalt-III hexavalent complex. The cobalt conversion solution may be prepared by a bath makeup sequence including the steps of: (a) dissolving a cobalt-II salt; (b) then dissolving a metal nitrate salt; and (c) then adding ammonium acetate. (C.) A coated article exhibiting corrosion resistance and paint adhesion properties, the article including: (a) a metal substrate; and (b) a cobalt conversion coating formed on the substrate, the cobalt conversion coating including aluminum oxide Al2O3 as the largest volume percent, and cobalt oxides CoO, Co3O4, and Co2O3.
Patent CA-2100442-C (CA)
Inventor: RAMIREZ DE AGUDELO MARIA MAGDA
IPC: C22B1/16
Filed: 1993-07-13
Granted: 1998-07-14
Abstract: A process for production of vanadium-containing agglomerate, includes the steps of providing a spent, vanadium-containing, iron based hydroconversion catalyst; incinerating the spent catalyst in the presence of an oxidizer until a sulfur content of the spent catalyst is reduced to 2% or less by weight; grinding the spent catalyst to a particle size suitable for a desired use; and mixing the spent catalyst with an iron mineral and a binder to form a vanadium-containing agglomerate; and pyroconsolidating the vanadium-containing agglomerate.  Agglomerates so obtained exhibit a solid solution structure of ferric oxide and vanadium pentoxide.  A process for production of vanadium-containing steel alloys from such agglomerates includes the steps of: reducing the vanadium-containing agglomerate; mixing the reduced vanadium-containing agglomerate with a standard reduced iron agglomerate to obtain a mixed reduced agglomerate; and melting the mixed reduced agglomerate under reducing conditions to obtain a vanadium-containing steel alloy.
Patent CA-2102441-C (CA)
Inventor: STALSBERG KEVIN J
IPC: G05D23/24
Filed: 1993-11-04
Granted: 1996-11-05
Abstract: A two terminal line voltage thermostat includes a switch which connects one side of the line voltage to a heater load (that it drives) such as a baseboard heater with the other side of the heater being connected to the other side of the line. Common full wave rectifier components drives both a relay coil and the remaining electronics of the thermostat. In addition, an arc suppressing triac across the switch while necessarily connected to the primary side of a transformer is directly driven from the secondary which is ungrounded; the primary also provides choking for the triac .
Patent CA-2103156-C (CA)
Title: Quick charger and quick charge method of nickel-cadmium battery
Inventor: SIMMONDS STEWART NEIL
IPC: H02J7/00
Filed: 1992-07-28
Granted: 1997-03-18
Abstract: A method and apparatus for charging nickel-cadmium batteries with a current greater than 2C rate.  The cell temperature or both the temperature and voltage thereof are monitored, and the charging operation is halted upon detection of a moment when the rate of temperature increase of the cell became at least twice as great as the rate of temperature increase that was measured just before, or of a moment at which the above phenomenon took place and a moment at which the rate of voltage increase has declined immediately following a period during which the rate of voltage increase has continually risen.
Patent CA-2103278-C (CA)
Inventor: GOULAIT DAVID JOSEPH KENNETH
IPC: H01M10/48
Filed: 1992-05-04
Granted: 1998-05-05
Abstract: The present invention provides a female component (22) for engaging a complementary hook component in a refastenable fastening device (20).  The female component (22) comprises at least two, and preferably three zones or layers.  These include a first zone (31) for admitting and engaging at least some of the hooks of the complementary hook component (the "entanglement" zone), a second zone (32) for providing space for the hooks to occupy after they have been admitted by the entanglement zone (referred to as the "spacing" zone), and a backing (34) adjacent to the spacing zone (32) for providing a foundation for the entanglement and spacing zones.  The present invention also provides a fastening device having a hook fastening component and a female component that comprises the multilayer female component of the present invention.  The present invention also relates to disposable articles and more particularly to a disposable diaper having such an improved fastening device.
Patent CA-2107390-C (CA)
Inventor: MUELLER WALTER B
IPC: B65D65/40
Filed: 1993-09-30
Granted: 2003-06-10
Abstract: A packaging laminate which includes a layer of polymethylpentene film and a sealant film. The films may be bonded by corona treatment. The laminate displays high oxygen transmission and heat resistance and may be used as a packaging material for produce such as cauliflower, broccoli and lettuce.