baber/WOPTO huggingface dataset:
Patent CA-2120675-A1 (CA)
Title: Cavern Well Pressure Trap
Inventor: HLADUN GREGORY D
IPC: E21F17/16
Filed: 1994-04-06
Abstract: A pressure trap for a producer well of a subterranean pressurized fluid storage system, the well being lined with a casing having a casing interior connected with a subterranean pressurized fluid storage cavity through a lateral bore, includes a divider for dividing off a chamber from a lower portion of the casing interior which chamber communicates with and extends to a selected level below an entry of the lateral bore into the well casing, and a passage for fluid communication between the chamber and a remainder of the casing interior and below the entry of the lateral bore. The divider is preferably a combination of a cylindrical liner having upper and lower ends respectively positioned above and below the entry of the lateral bore, and an annular packer sealing between the liner and the well casing above the entry of the lateral bore. Methods of providing a pressure trap and sealing a producer well are also disclosed. The pressure trap can be installed at lower cost, as a retrofit in existing casings, or as a backup to failed conventional arrangement installed outside the well casing.
Patent CA-2122879-A1 (CA)
Title: Scouring compounds and method
Inventor: TERROUX NORMAND
IPC: C09D9/00
Filed: 1994-05-04
Abstract: Disclosed herein is a method for the removal of coating films from a coated surface comprising the steps of:     (a)  pressure  spraying  a chemical  stripping composition onto a coated surface having at least one coating film to be removed, the stripping composition comprising a bonding agent whereby the consistency of the stripping  composition  will  be  such  that  it  will effectively  cling to  the  surface  regardless  of  the orientation of the surface;  (b)  waiting a sufficient amount of time for the stripping composition to strip the coating  from the  surface and to  form a mixture  of stripping composition and stripped coating film(s); (c) recovering the mixture by applying a vacuum source to aspirate the mixture into a recovery container.   Also disclosed are novel and sprayable stripping compositions useful for removing coating films.
Patent CA-2126360-A1 (CA)
Inventor: MARTSFELD RAINER
IPC: F16J15/3264
Filed: 1994-06-21
Abstract: A seal arrangement includes a seal having a polymeric sealing body and a flexible auxiliary member which is rigidly affixed to at least a portion of the sealing body and which is an electrical impulse generator and/or sensor adapted for use in the detection of variable parameters of the seal and its environment. The integration of the auxiliary member into the seal arrangement provides for a miniaturized construction and simple manufacture and, installation and operation at low cost.
Patent CA-2126731-A1 (CA)
Title: Hollow cathode array and method of cleaning sheet stock therewith
Inventor: JANSEN FRANK
IPC: H01J37/32
Filed: 1994-06-24
Abstract: ABSTRACT OF THE DISCLOSURE     An array of hollow cathodes can be made by mounting a housing connected to a source of plasma precursor gas and to a source of power in a vacuum chamber, said housing having a plurality of uniformly spaced openings in a wall thereof into which a plasma can be generated. A substrate to be treated is mounted parallel to and spaced a preselected distance from said openings. In operation, a plurality of plasma torches is created extending from the openings which can plasma etch and remove coatings on said substrate.
Patent CA-2128747-A1 (CA)
Title: High speed image preprocessing system
Inventor: HO BENEDICT C M
IPC: G06T9/00
Filed: 1994-07-25
Abstract: HIGH SPEED IMAGE PREPROCESSING SYSTEM            Abstract of the Disclosure A high speed digital image preprocessing system for use in image recognition applications to reduce the processing demands on the associated Host Computer thus allowing for greater system throughput. Compressed image data is transmitted over a Small Computer System Interface (SCSI) for storage in a Multi-Purpose Buffer. The data may decompressed, byte-swapped, byte-flipped, or may be passed through the system unmodified as directed by the Host Computer. A Video Compression-Expansion Processor can handle a variety of data compression formats and receives data from the Multi-Purpose Buffer. Processed data which matches preprogrammed sets of window coordinates can be selectively cropped and stored in multiple First-In-First-Out (FIFO) buffers by Cropper Controller circuitry. The processed and cropped data is then sent to the Host Computer through a Micro-Channel Architecture (MCA) Interface Controller for further recognition processing by the Host Computer. A high data throughput rate is achieved by synchronizing data transfer among the components of the preprocessing system by use of the Multi-Purpose Buffer and a data window storage mechanism.
Patent CA-2128895-A1 (CA)
Inventor: CROWELL JOHN M
IPC: G01V1/155
Filed: 1993-12-14
Abstract: A removable bore liner (30) is provided that substantially increases the dependability, flexibility and field serviceability of seismic vibrators (14) and other hydraulically actuated devices.  A method for installing the removable bore liner (30) in a seismic vibrator (14) is also provided.
Patent CA-2129890-A1 (CA)
Inventor: GUNAGAN BARRY P
IPC: C11D7/44
Filed: 1994-08-10
Abstract: A method of enhancing the drainage of residual aqueous rinse from the external surfaces of thermoplastic olefin plastic parts is disclosed. The method employs an aqueous solution of tannic acid compound, which when applied to the surface of thermoplastic olefin plastic parts will not rinse off during subsequent rinse stages and will remain on the thermoplastic olefin plastic parts.
Patent CA-2133576-A1 (CA)
Title: Improvements relating to the formation of cartons
Inventor: BRADLEY ALBERT J
IPC: B31B50/04
Filed: 1994-02-01
Abstract: 2133576 9417988 PCTABS00033 A continuous strip (1) of cardboard material is pre-cut to form a succession of carton blanks (2) interconnected at cutting points (3) which define the ends of the blanks. The strip (1) is formed into a roll which is mounted on a variable speed reel drive. The strip (1) is then fed by rollers to a cutting station (7) where a knife will operate to cut off individual blanks along the lines (3), whereafter the blanks will be formed into individual cartons (12).
Patent CA-2134797-A1 (CA)
Inventor: AMSALLEN MARCEL
IPC: F16H59/66
Filed: 1994-11-01
Abstract: A method and apparatus for selecting gear shift points is disclosed wherein vehicle speed and grade are monitored by sensors which provide data which is used to calculate vehicle acceleration adjusted to compensate for the effect of vehicle grade. A gross vehicle weight value is determined from the adjusted acceleration value. Based on the determined gross vehicle weight and the existing grade, the horse power required to sustain the current GVW and grade with zero acceleration is calculated.      Also the current GVW and grade are used to determine the rate of vehicle speed loss during the torque interrupt period in order to predict the engine speed in the new gear and calculate the horse power available from the engine at shift completion. If the predicted engine speed is above a predetermined minimum and if the horse power available from the engine at completion of the shift is equal to or greater than the horse power required to maintain the current vehicle speed, the shift is permitted, otherwise the shift is not permitted and the measurements end calculations necessary to make the shift point decision are repeated. The minimum predicted engine speed may be adjusted to reflect driver demand as represented by throttle position.
Patent CA-2135093-A1 (CA)
Title: Cathodic electrodeposition paint forming films having improved surface smoothness
Inventor: YAMADA MITSUO
IPC: C09D5/44
Filed: 1994-11-04
Abstract: ABSTRACT OF THE INVENTION      A cathodic electrodeposition paint containing a cationically modified epoxy resin and a crosslinker dispersed in an acidic aqueous medium is disclosed. The paint contains an auxiliary resin component capable of improving the surface smoothness of the cured paint films.          The auxiliary resin is a reaction product produced by reacting a t-alkylphenol novolac epoxy resin with an active hydrogen compound to open all epoxy rings. When the auxiliary resin has a hydroxyl group introduced by the reaction with the active hydrogen compound, a lactone or alkylene oxide is addition reacted with the hydroxyl group for grafting a soft segment to the auxiliary resin. By grafting a soft segment, the auxiliary resin improves not only the surface smoothness but also the impact strength of the paint films.
Patent CA-2137302-A1 (CA)
Inventor: SHINJO HIROSHI
IPC: B21D28/24
Filed: 1994-12-05
Abstract: An apparatus makes self-piercing nuts from blanks (11) each having a cylindrical pilot portion (13) which has  a raw unopened and unthreaded bore (12) and an end surface serving as a punch.  The pilot portion  surrounded by a rim (14) extending along a periphery a nut body, and an annular groove (15) is present between the pilot (13) and the rim.    The apparatus has a punching die which has a boring punch (33) and a first cylindrical insert (35) fitted on the punch serving to open the bore (12).    The boring punch has at its basal portion a tapered annular wall (34), and the cylindrical insert (35) having at its end surface an annular lug (36) capable fitting in the annular groove.     The tapered wall (34) radially expands an end of the pilot portion, so that its peripheral wall is forcibly slanted in a radial direction and an annular edge (13a) of the peripheral wall is stopped by an inner periphery of the annular lug (36).    Due to this feature, the apparatus can mass-produce the self-piercing nut of an accurate dimension which can smoothly punch an opening trough a metal plate, and  an invariable and sufficient clinching force is ensured to the self-piercing nut.
Patent CA-2138370-A1 (CA)
Title: Apparatus to convert a refrigerated vendor to a refrigerated display case
Inventor: RUDICK ARTHUR G
IPC: F25D11/00
Filed: 1993-06-25
Abstract: An apparatus for converting a refrigerated vendor to a refrigerated display apparatus wherein the vendor has a cabinet (3) with a front opening and a refrigeration unit (15) for circulating cool air within the interior of the cabinet (3). A front panel having a pivotally mounted transparent door (2) is attached to the front opening to seal the interior of the cabinet (3) and a par-tition (19) is positioned adjacent and parallel to the rear wall of the cabinet (3) to form an air distribution plenum (21). A plurality of slots in the parti-tion (19) are used to direct cool air toward the front panel.
Patent CA-2138617-A1 (CA)
Title: Cylindrical electromechanical transducer
Inventor: TAGHEZOUT DAHO
IPC: H02K21/12
Filed: 1994-12-20
Abstract: The present invention concerns an electromechanical transducer exhibiting a configuration of the cylindrical type and adapted in particular to serve as a stepping motor. In a three-phase embodiment, the transducer according to the invention comprises a stator (2) and a rotor (4) capable of turning around a rotation axis (5).      The stator (2) comprises three pole pieces (8, 10, 12) each having a polar arm (14, 16, 18) oriented in the direction of the rotation axis of the rotor and bearing an energization winding (32, 34, 36).
Patent CA-2138936-A1 (CA)
Title: Diagnostic apparatus and methods for ignition circuits
Inventor: OWENS DAVID N
IPC: F02P17/12
Filed: 1994-12-22
Abstract: Diagnostics  apparatus  for detecting operation of  an exciter circuit connected to an igniter, includes means for detecting current discharged from the exciter circuit through the igniter, means for detecting current discharged from the exciter circuit other than through the igniter, and means for producing a single output that indicates the type of discharge from the exciter circuit.
Patent CA-2141524-A1 (CA)
Title: System and method for laser welding an inner surface of a small diameter tubular member
Inventor: PIRL WILLIAM E
IPC: B23K26/28
Filed: 1995-01-31
Abstract: System and method for laser welding an  inner surface of a small diameter tubular member.   The system includes a laser for generating laser light and a mirror optically coupled to the laser for reflecting the light onto the inner surface of the tubular member to laser weld the inner surface of the tubular member.  A rotator assem-bly is connected to the mirror for rotating the mirror in order to weld around the inner surface of the tubular member.  The mirror and rotator assembly are each sized to be disposed in the tubular member at a location adjacent the portion of the tubular member to be welded.   The rotator assembly has a spiral groove formed in the exterior thereof for receiving a cord wrapped around the exterior of the rotator assembly.  An end of the cord is connected to a motor located externally to the tubular member, so that the cord is pulled as the motor is operated.  As the cord is pulled, the rotator assembly rotates for rotating the mirror.  A retainer is also provided for retaining the cord in the groove as the rotator assembly rotates.  Therefore, the rotator assembly and the mirror associated therewith are rotated by a motor located externally to the tubular member.  Thus, the system and method of the invention are capable of welding small diameter (e.g., diameters equal to or less than 0.313 inch) tubular members because the motor is located externally to the tubular member rather than being disposed in the tubular member.
Patent CA-2141561-A1 (CA)
Title: Thin film gas sensor and method of fabrication thereof
Inventor: CURRIE JOHN F
IPC: G01N27/406
Filed: 1994-06-01
Abstract: 2141561 9428403 PCTABS00034 An integrated monolithic gas sensor comprises a substrate and thin films deposited on this substrate. The thin films include a thin film electrically conductive heating element, a thin film conductive reference electrode, and a second thin film conductive electrode, these electrodes and heating element being electrically isolated from each other. A thin film ionic conductor and a thin film reactive gas sensitive layer are placed between the reference electrode and the second conductive electrode to form an electrolytic cell in which an electrolytic reaction including as reagent the gas to be detected produces between the two conductive electrodes an electromotive force indicative of the concentration of the gas. Also deposited is a micro-thermometer formed of a thin film wire having a temperature-dependent resistance. When the gas to be detected is CO2, the ionic conductor may comprise NASICON of formula Na3Zr2Si2PO12, and the reactive gas sensitive layer may comprise Na2CO3.
Patent CA-2142289-A1 (CA)
Title: Method and Apparatus for Increasing Efficiency and Productivity in a Power Generation Cycle
Inventor: KAKOVITCH THOMAS S
IPC: F01K21/04
Filed: 1993-08-12
Abstract: A method and apparatus for converting heat energy to mechanical energy with greater efficiency. According to the method, heat energy is applied to a working fluid in a reservoir sufficient to convert the working fluid to a vapor and the working fluid is passed in vapor form to means such as a generator for converting the energy therein to mechanical work. The working fluid is then recycled to the reservoir. In order to increase the efficiency of this process, a gas having a molecular weight no greater than the approximate molecular weight of the working fluid is added to the working fluid in the reservoir, separated from the working fluid downstream from the reservoir, compressed and returned to the reservoir.
Patent CA-2143290-A1 (CA)
Title: Process and apparatus for producing liquid carbon dioxide
Inventor: CALLAHAN RICHARD A
IPC: C01B32/50
Filed: 1993-08-17
Abstract: A process and apparatus for producing liquid carbon diox-ide is disclosed. A process stream (60) which comprises carbon di-oxide and a balance substantially of nitrogen and water is cooled (70, 90). The process stream is compressed (130) so that all but trace amounts of water is condensed out, cleaned (240) to remove trace amounts of water, long-chain hydrocarbons and particu-lates, and separated (260) into a nitrogen-rich gaseous stream (270) which is expanded (300) to produce an expanded nitrogen-rich gaseous stream and a carbon dioxide-rich gaseous stream (280) which is compressed (290). The energy of expanding is used to compress the carbon dioxide-rich gaseous stream. The com-pressed carbon dioxide-rich gaseous stream is cooled (330) by the expanded nitrogen-rich gaseous stream to liquefy the carbon di-oxide and reduce the temperature of the gaseous nitrogen in the stream. The liquefied carbon dioxide (380) is withdrawn as pro-duct.
Patent CA-2146245-A1 (CA)
Inventor: KYOGOKU YASUHISA
IPC: C12N1/16
Filed: 1993-08-04
Abstract: This invention relates to a process for making bread characterized in that a yeast of the genus Saccharomyces which exhibits cold-sensitive fermentation is added to a dough.
Patent CA-2146851-A1 (CA)
Inventor: AYRES DONALD B
IPC: A47C7/30
Filed: 1993-11-08
Abstract: The invention relates to a clip assembly (50) comprising a plurality of clips (12) held together by non-metal, elongate, flexi-ble members (30, 32) which are secured in openings (14, 16) in the bight portion (18) of each clip by pressing the side edges (20, 22) of each bight portion (18) toward each other. The method of making the clip assembly (50) includes the steps of: punching clip blanks (10) having two punched openings (14, 16) from a sheet of metal, folding or forming each clip around a mandrel to form a U-shaped clip; placing a plurality of U-shaped clips in a row with the openings (14, 16) aligned to form troughs; placing a non-metal, elongate, flexible member (30, 32) in each trough (28, 29) and sequentially pressing the side edges (20, 22) of the bight portion of each clip toward each other to crimp the flexible members in the openings (14, 16).
Patent CA-2148222-A1 (CA)
Title: Profile grinder
Inventor: SCHRUNK ROBERT R III
IPC: E01B31/17
Filed: 1993-05-24
Abstract: A rail maintenance vehicle (10) includes a slide frame (36) along which a grinder (42) may move while the vehicle (10) remains stationary. The grinder (42) may be moved automatically away from the rail (34) as the grinder (42) moves longitudinally along the rail (34) away from the center of a weld bead in order to smooth the grinding at the weld bead. The slide frame (36) is connected by a linkage mechanism (66) such that the grinder (42) may be oriented at different grinding angles over a range of 200°. The grinder (42) is mounted upon a lateral displacer (30, 32F, 32S) such that the grinder (42) may be moved from one side of the vehicle (10) to the other for grinding on rails (34) on either the right or left side of the vehicle (10). A turntable system (132) allows the turntable cylinder (132C) to pivot up and out of the way to a horizontal position so that the lateral displacer (30, 32F, 32S) may move the grinder (42) from one side of the vehicle (10) to the other without interference from a vertical turntable cylinder.
Patent CA-2148527-A1 (CA)
Inventor: WATSON CHARLES FRANKLIN
IPC: B01D53/047
Filed: 1995-05-03
Abstract: A process for separating a feed gas mixture into a more strongly adsorbable component and a less strongly adsorbable component in a plurality of adsorbent beds containing an adsorbent selective for the more strongly adsorbable component with two cocurrent depressurizations, first to provide product and then to provide a purge gas, and using a combination of less strongly adsorbable component and feed gas mixture to repressurize the adsorbent bed.  Oxygen product can be recovered from air at high recovery using the process.   I
Patent CA-2149009-A1 (CA)
Inventor: SUUR-ASKOLA SEPPO
IPC: H02P27/04
Filed: 1995-05-09
Abstract: The invention relates to an apparatus for regulating the speed of an a.c. elevator motor (10) by means of a frequency converter (8) consisting of a rectifier bridge (4) and an inverter bridge (4). The frequency of the frequency converter is adjusted until it corresponds to a frequency reference (fref) corresponding to the speed reference (vref'vref') of the motor. The velocity of the motor (vreal) is measured to form a speed feedback signal. According to the invention, the apparatus comprises means (24,26) for correcting the speed reference (vref) on the basis of the change occurring in the voltage (Uc) of the intermediate circuit. <IMAGE>
Patent CA-2152482-A1 (CA)
Inventor: OWENS N DOUGLAS
IPC: E05D15/06
Filed: 1993-12-21
Abstract: A track switch (20) for use with a track intersection (10) for movable wall panels wherein the track intersection (10) has a first track path (16) and a second track path (18) for the movable wall panels to traverse. The switch (20) includes an actuator (26) movable between a first actuator position and a second actuator position upon actuation by a power source (24).     The switch (20) also includes a diverter (32) operatively connected to the actuator (26) and selectively movable between a first diverter position defining the first track path (16) and a second diverter position defining a second track path (18).    Movement of the actuator (26) between the first and second positions causes the diverter (32) to move between the first and second diverter positions, respectively. The actuator (26) includes a biasing mechanism (28, 30) for biasing the diverter (32) toward the selected diverter position.  The biasing mechanism (28, 30) is operatively connected to the diverter (32) such that, as the diverter (32) is in or moving toward the selected diverter position, the biasing mechanism (28, 30) allows the diverter (32) to move toward the non-selected diverter position upon application of a force against the diverter (32) toward the non-selected diverter position.
Patent CA-2155664-A1 (CA)
Inventor: ROBINSON RALPH P
IPC: A61K31/44
Filed: 1993-12-10
Abstract: Compounds of formula (I) where R1 is thienyl, phenyl or furyl, X and Y are halogen or hydrogen and Q is alkoxy or amino are useful as analgesic and antiinflamatory agents.
Patent CA-2157299-A1 (CA)
Inventor: HARRIS RANDALL LEE
IPC: B65D71/12
Filed: 1994-12-19
Abstract: Un emballage enveloppant (10) contient des éléments pour recouvrir le code-barres du prix sur les articles se trouvant en bout du paquet. Des sangles (26) raccordées aux panneaux latéraux (16) s'étendent entre les articles se trouvant en bout et les panneaux latéraux et dans l'extrémité de l'emballage pour à la fois dissimuler le code-barres du prix de l'article et retenir les articles afin qu'ils ne sortent pas de l'emballage. Les sangles (6) sont obtenues à partir des découpes pratiquées dans les panneaux supérieurs et latéraux de l'emballage, une poignée de transport (24) ayant été laissée dans le panneau supérieur.
Patent CA-2157858-A1 (CA)
Inventor: SKINKER BENJAMIN H
IPC: H04M11/06
Filed: 1995-09-08
Abstract: A modem which is separated into two circuit boards.  One board contains the modem engine, while the second board contains the codec and the DAA components. The two boards are connected using only properly isolated digital signals so that the modem engine board does not require certification, only the codec/DAA board requiring certification.  The codec/DAA board is contained in a housing to provide proper high voltage protection.