baber/WOPTO huggingface dataset:
Patent CA-2062908-A1 (CA)
Inventor: LETURNO DAVID B
IPC: B23K9/32
Filed: 1992-03-12
Abstract: The present invention relates to processes and apparatus for welding or joining metal parts which comprises moving a welding torch in a direction along a joint between said parts, causing a molten pool of metal with said welding torch along the joint and directing a laminar flow of inert fluid toward a freshly welded area behind said welding torch in the form of a trailing shield whereby said freshly welded area is protected from the surrounding air during its solidification.  The laminar flow or inert fluid may also be directed along the joint ahead of said welding torch in the form of a leading shield such that turbulence in and around the joint caused by a high welding speed is reduced, thereby preventing oxygen entrainment in said molten pool of metal.  The laminar flow of inert fluid is usually provided through at least one diffuser having at least one porous diffusing surface which is generally provided with a screen and/or a spatter shield.
Patent CA-2064010-A1 (CA)
Title: Drill head with nozzles
Inventor: DAHN ROLF
IPC: E21C45/00
Filed: 1991-03-25
Abstract: A drill head (1) as part of a drill lance for an apparatus for drilling an underground tunnel, which drill head has a channel (10) extending along the center axis of the drill lance and is rotatable about the center axis, comprising at least one forwardly directed nozzle (2), the nozzle channel (21) of which communicates with the channel (10) and exits outside the center axis, the drill head (1) being characterized by at least one rearwardly directed nozzle (4) being provided, the nozzle channel (41) of which communicates with the channel (10).
Patent CA-2064245-A1 (CA)
Title: Heat pipe device
Inventor: MAHDJURI-SABET FARAMARZ
IPC: F24S10/95
Filed: 1991-05-20
Abstract: A heat pipe (1) containing a working fluid. comprises an evapora-tor (3), a condenser (2). an interconnecting tube (4) joining the evaporator and the condenser, and a regulating means (13, 14) for limiting the maxi-mum temperature in the condenser to a predetermined temperature. The regulating means comprises a plug (13) operable by means of a tempera-ture sensitive member (14) to move between a first position in which the plug seats in a fluid reservoir (12) in said condenser and a second posi-tion in which said reservoir is adapted to collect the working fluid.
Patent CA-2064254-A1 (CA)
Inventor: TEIGEN JERRY T
IPC: B60J5/08
Filed: 1992-03-27
Abstract: ABSTRACT OF THE DISCLOSURE           An articulated door and door guid ng track covers storage bays of a beverage body.  An a ticulated door is formed by engaging a plurality of polymeric panel sections into a sequence such that e ch panel section can be positioned at varying angles wi h respect to an adjacent engaged panel section.  The articulated door is guided between an open position and a closed position by a door guiding track comprised  of a left channel facing a right channel across a door opening. The sequence of panel sections is slidably positioned in the door guiding track by having a left end of each panel section extending into the left channel and a right end of each panel section extending into the right channel.
Patent CA-2065326-A1 (CA)
Inventor: CLARK GERALD F
IPC: C23G5/04
Filed: 1990-08-20
Abstract: 2065326 9103325 PCTABS00003 Apparatus for cleaning printed wiring boards and/or printed circuit boards (170) after soldering thereof for removal of rosin soldering fluxes using terpene compounds. The apparatus includes three separate components, a first housing (26) containing the terpene washing apparatus (12), a second housing (136) containing a water rinsing apparatus (16), and intermediate conveying means (14) for transporting the devices from the first housing (26) to the second housing (136). This intermediate conveying means (14) should be disposed at an angle such that the end facing the second housing (136) is disposed lower than the first end. Exhaust fans (48) are provided for the first housing (26) to prevent escape of terpene odors or vapors therefrom, while similar exhaust fans (164) in the second housing (136) prevent the escape of water vapor.  Scrubbers (50) are provided in the exhaust ducts (44, 46) from the first housing to prevent terpene compounds from escaping to the atmosphere. A flame detector (90) prevents the introduction of boards (170) having flames thereon or being overheated. A series of temperature controls (96) prevent the terpene vapor temperature from rising a predetermined value to prevent the vapors from igniting.
Patent CA-2066090-A1 (CA)
Inventor: LILJA LAUNO L
IPC: B01D47/12
Filed: 1992-04-15
Abstract: The invention relates to an apparatus where the wet scrubbing of several different gas flows is carried out in at least three scrubbing towers, and the droplet separation of scrubbed gases takes place in a cyclonic, uniform droplet separator constructed of several cylinders, so that the obtained product is a pure and droplet-free gas.
Patent CA-2066592-A1 (CA)
Title: Temperature control of a heated probe
Inventor: MASRELIEZ C JOHAN
IPC: A61B17/00
Filed: 1990-09-27
Abstract: A method and apparatus for precisely controlling the temperature of a heated tip are disclosed. The temperature  of a ther-mocouple within the tip is sensed at a selected rate. The sensed temperature  is compared with a preselected temperature set by a user. The power provided to heat the tip is varied to cause the tip to achieve the selected temperature. If an AC power source is used, the temperature sensed at each zero crossing of the power source and the amount of power provided within that cycle is based on the temperature of the tip sensed within the same cycle. The duration of time that heat is applied to the probe within the cycle is varied to achieve the desired temperature. If a DC power source is used, the temperature of the tip is sensed at selected intervals. The sensed temperature controls the amount of power provided to heat the tip. The exact temperature of the tip is thus advantageously controlled to provide the desired heating.
Patent CA-2066797-A1 (CA)
Title: Corrosion inhibition in highly acidic environments by use of pyridine salts in combination with certain cationic surfactants
Inventor: SHAH SAYED S
IPC: C10G7/10
Filed: 1992-04-22
Abstract: Abstract of the Disclosure A method for inhibiting corrosion of ferrous sur-faces in an acidic, aqueous medium is disclosed.  The method comprises incorporating into the medium a corro-sion-inhibiting amount of a pyridine salt composition (comprising a quaternary pyridine salt composition and/or a pyridine.HCL salt composition) and a cationic surfac-tant that forms a bilayer on the ferrous surfaces in the medium.  Highly quaternized pyridine salt compositions useful in such method and a method for preparation of such compositions are also disclosed.
Patent CA-2067655-A1 (CA)
Title: Apparatus and method for dividing/combining microwave power from an odd number of transistor chips
Inventor: KHANDAVALLI CHANDRA
IPC: H01P5/19
Filed: 1992-04-30
Abstract: Abstract of the Invention A power divider/combiner circuit is disclosed for connecting to a single port, 2N+1 multi-cell monolithic transis-tor chips, each chip composed of an even number of cells.  A planar binary tree type transmission line structure is provided having first and second ends for connecting 2P transmission line ports at the first end to the single port at the second end, where N and P are each integers greater than or equal to 1, and an equal number of cells are connected to each of the 2P transmission line ports.  The value of P is chosen such that   where R is an integer greater than 1, and C is the sum total of the number of cells in the 2N+1 chips.  R cells are connected to each of the 2P transmission line ports, and some cells from at least one transistor chip are connected to a transmission line port which is different from the port to which other cells from that one chip are connected.
Patent CA-2068177-A1 (CA)
Title: Aircraft gas turbine engine bleed air energy recovery apparatus
Inventor: COFFINBERRY GEORGE A
IPC: B64D13/06
Filed: 1992-05-07
Abstract: ABSTRACT An environmental control system for supplying aircraft or cabin air to an aircraft is provided with a propulsive engine compressor bleed supply means and an ECS bleed air flow control means which includes an energy recovery means for using the unrequired or unused energy to pump boundary layer air from the surface of the aircraft, such as from the engine nacelle, and exhaust this air rearward of the engine to produce thrust, thus returning some of this unused energy to the propulsive engine.
Patent CA-2068251-A1 (CA)
Title: Crystalline poly-4-methyl-1-pentene composition
Inventor: KAKUGO MASAHIRO
IPC: C08L23/20
Filed: 1992-05-08
Abstract: ABSTRACT OF THE DISCLOSURE    A  crystalline  poly-4-methyl-1-pentene  composition  is disclosed;    comprising    poly-4-methyl-1-pentene    having incorporated therein a polymer of a compound represented by formula (I):                          CH2=CH(CH2)nR                    (I) wherein R represents a cyclic hydrocarbon group; and n is an integer of from 0 to 10, in an amount corresponding to 0.05 to 10000 ppm by weight of the monomer unit derived from the compound represented by formula (I).  The composition has a high rate of crystallization and a high crystallization temperature.
Patent CA-2071170-A1 (CA)
Inventor: COMTOIS CLAUDE
IPC: H05K13/00
Filed: 1992-06-12
Abstract: A printed circuit board support frame for protecting and transporting a printed circuit board. The support frame is molded from moldable materials and comprises a base wall section having elevated support ribs on a top face thereof for supporting the printed circuit board elevated from the base wall section. The base wall section has a hinged retention side wall member formed along a pair of opposed parallel edges thereof.          The retention side wall members, when hinged outwardly of the base wall, permit the circuit board to be positioned on the support ribs over the base wall section. The retention side wall members have one or more clamping shoulders projecting forwardly over opposed top side edge portions of the circuit board when the side wall members are maintained in a vertical position to clamp the circuit board over the support ribs. Abutment wall members are formed at predetermined locations on the base wall section to prevent the circuit board from displace-ment .
Patent CA-2071456-A1 (CA)
Title: Method of treating adult t-cell leukemia/lymphoma
Inventor: MILLER GLENN A
IPC: C07D498/04
Filed: 1992-06-17
Abstract: ABSTRACT   This invention provides a method of treating adult T-cell leukemia/lymphoma (ATL) in a mammal in need thereof which comprises administering an antiproliferative amount of rapamycin, and is particularly useful in arresting the progression of or inducing remission of ATL.
Patent CA-2073129-A1 (CA)
Title: Magnetic garnet single crystal for measuring magnetic field intensity and optical type magnetic field intensity measuring apparatus
Inventor: SHIRAI KAZUSHI
IPC: G02F1/09
Filed: 1992-07-03
Abstract: ABSTRACT OF THE DISCLOSURE     A bismuth substituted magnetic garnet has an extremely small temperature dependence of sensitivity to a light having a wavelength of 790-B60 nanometers.  The garnet has a compound suitable for a Faraday rotator and is given by HoxTbyBi3-x-yFe5-zAzD12 where R is at least one of groups of Ga, Al, Sc, and In, and O?Y/X?1.0, 1.5?X+Y?1.9, and O?Z?0.4.
Patent CA-2074472-A1 (CA)
Title: Suppression of electroendosmosis in capillary electrophoresis
Inventor: ZHU MING-DE
IPC: G01N27/447
Filed: 1991-12-12
Abstract: SUPPRESSION OF ELECTROENDOSMOSIS   IN CAPILLARY ELECTROPHORESIS                   ABSTRACT OF THE DISCLOSURE Spontaneous and undesired electroendosmosis in a capillary during an electrophoretic separation procedure is suppressed by the inclusion of a viscosity-raising additive in one or both of the electrode chamber solutions.  The additive is either a viscous water-soluble polymer, a hydrophilic gel, or a combination of the two.
Patent CA-2075329-A1 (CA)
Title: Public key cryptosystem key management based on control vectors
Inventor: MATYAS STEPHEN M
IPC: G09C1/00
Filed: 1992-08-05
Abstract: A data processing system, method and program are disclosed, for managing a public key cryptographic system. The method includes the steps of generating a first public key and a first private key as a first pair in the data processing system, for use with a first public key algorithm and further generating a second public key and a second private key as a second pair in the data processing system, for use with a second public key algorithm.  The method then continues by assigning a private control vector for the first private key and the second private key in the data processing system, for defining permitted uses for the first and second private keys.  Then the method continues by forming a private key record which includes the first private key and the second private key in the data processing system, and encrypting the private key record under a first master key expression which is a function of the private control vector.  The method then forms a private key token which includes the private control vector and the private key record, and stores the private key token in the data processing system.  At a later time, the method receives a first key use request in the data processing system, requiring the first public key algorithm.  In response to this, the method continues by accessing the private key token in the data processing system and checking the private control vector to determine if the private key record contains a key having permitted uses which will satisfy the first request.  The method then decrypts the private key record under the first master key expression in the data processing system and extracts the first private key from the private key record.  The method selects the first public key algorithm in the data processing system for the first key use request and executes the first public key algorithm in the data processing system using the first private key to perform a cryptographic operation to satisfy the first key use request.
Patent CA-2076599-A1 (CA)
Inventor: GIRARD LAURENT
IPC: B64C27/00
Filed: 1992-08-21
Abstract: - La présente invention concerne un dispositif de liaison élastique entre deux pièces (3,5) pour filtrer les excitations vibratoires qui sont transmises de l'une à l'autre, comportant : . au moins un élément de liaison (7) entre lesdites pièces (3,5) comprenant un organe (8) de transmission de l'effort statique entre lesdites pièces (3,5), et un actionneur (9) associé audit organe de transmission (8), . au moins un moyen de mesure (10) d'une grandeur physique représentative desdites excitations vibratoires, et susceptible de fournir des premiers signaux correspondants, et . des moyens électroniques de traitement (12) desdits premiers signaux pour convertir ceux-ci en des seconds signaux de commande dudit actionneur (9). - Selon l'invention, ledit moyen de mesure (10) est monté sur ledit élément de liaison (7). Figure 2.
Patent CA-2077298-A1 (CA)
Inventor: SCHUTTLER KARL-HANS
IPC: B65H67/02
Filed: 1992-09-01
Abstract: METHOD AND DEVICE FOR AVOIDING STOPPAGES CAUSED BY  HOOP-CASING MEANS IN MACHINES FOR HOOP-CASING PACKING UNITS     Abstract The invention relates to a method and a device for avoiding stoppages caused by hoop-casing means in machines for hoop-casing packing units, more particularly:   the method is characterized by a further hoop-casing means roll with a further hoop-casing means and in that in each case the leading end of one of the two hoop-casing means is constantly held in the machine in a stand-by position from which, after removal of the other hoop-casing means from the hoop-casing means guide device, it is automatically fed to said guide device, possibly "at the touch of a button", and the device is characterized in that there is disposed, upstream of the transport device, a distributing guide having two hoop-casing means guideways for in each case one leading portion of the two hoop-casing means and having one hoop-casing means feed for alternative introduction of one of the two leading ends of the hoop-casing means into the transport device.
Patent CA-2078059-A1 (CA)
Title: System for treatment of photographic wastewater effluent and process therefor
Inventor: NEALE MICHAEL E
IPC: C25C1/20
Filed: 1992-09-11
Abstract: ABSTRACT OF THE DISCLOSURE     There is disclosed a system for treatment of wastewater effluent from a photographic process which produces a developer effluent, a bleach effluent and a fixer effluent. The system comprises a developer treatment zone, a bleach treatment zone and a fixer treatment zone. Within each zone, there are provided defined means of pH adjustment of the effluent and a defined electrolytic cell for electrolysis of the effluent. A process for conducting the system is also provided. The invention may be advantageously used to reduce the concentration of or eliminated chemicals contained in the effluent.
Patent CA-2079726-A1 (CA)
Title: Aqueous polymer dispersions
Inventor: WENDEL KURT
IPC: C09D157/00
Filed: 1992-10-02
Abstract: O.Z. 0050/42736 Abstract of the Disclosure: Aqueous polymer dispersions containing polymers obtainable by free-radical polymeri-zation of unsaturated monomers, and sugared starch, and the use thereof.
Patent CA-2079927-A1 (CA)
Inventor: WIELAND ROLF H
IPC: B22F9/08
Filed: 1992-10-06
Abstract: SYSTEM AND METHOD FOR ATOMIZATION OF LIQUID METAL The present invention produces a cold gas stream having a constant temperature and pressure. The gas stream is obtained from two initial streams, one being a liquefied gas and the other being a gas at ambient temperature. The liquefied gas stream is combined with the warm gas stream, causing the liquid to vaporize. The two streams are combined in proportions that yield a cold gas mixture having a desired temperature. The resulting cold gas mixture is directed into an insulated container having a volume significantly larger than the volume of the conduits through which the streams flow. The container therefore acts as a buffer to reduce pressure fluctuations in the stream. A temperature equalization coil is located in the interior of the container. The coil has one open end which communicates with the interior region of the container, the other end of the coil being connected to an outlet line. The cold gas in the coil remains within the coil for a relatively long time, and comes into thermal equilibrium with cold gas outside the coil. Thus, temperature variations in the cold gas stream are reduced. The cold gas which is withdrawn from the chamber is essentially constant in both temperature and pressure. The invention also includes the use of the cold gas, produced as described above, to atomize molten metal to form a metal powder.
Patent CA-2080936-A1 (CA)
Inventor: SCHLICHT LARRY J
IPC: E06B7/23
Filed: 1992-10-20
Abstract: A door sweep is integrally formed of synthetic resin with a generally planar body portion which is mounted on the bottom of the door and a face sealing portion along its one side. This includes a sealing element which extends upwardly from the body portion and has an inner surface adapted to bear against the surface of the door.  A pivot arm on the inner face of the sealing element intermediate its length extends in the direction of the other side of the body portion.  When the door sweep is moved against the bottom edge of the door, the pivot arm is pushed towards the body portion and the sealing element is pivoted against the face of the door.   Sealing elements depending from the other face of the body portion provide a seal between the door and its sill.
Patent CA-2082230-A1 (CA)
Title: Job separator
Inventor: VAN DE VEN JOHN
IPC: B65H39/06
Filed: 1992-11-05
Abstract: ABSTRACT OF THE DISCLOSURE      Business form components are stacked to separate them into different jobs, and after stacking are synchronously conveyed together to a pressure sealer, or similar device, for sealing the components together into a business form or are conveyed to subsequent operations such as secondary stacking into larger stacks.  Each component moves from an aligner/feeder to a stacker, moving up an incline of a continuously running conveyor belt so that each successive component passes underneath any previous components in a stack.  When a movable stop against which the components are held rotates out of the way, a top roller near the trailing ends of the components pinches them against a bottom roller so that the components move together away from the stacker in register with each other.  A sensor senses each component as it passes to the stacker, and when the desired number for a stack have moved past the sensor, a controller controls the operation of the stop and top roller to allow the continuously running conveyor belt to move the stacked components out of the stacker.
Patent CA-2082733-A1 (CA)
Title: Evaporative cooling system and ozone generator
Inventor: CONRAD WAYNE ERNEST
IPC: F28D5/00
Filed: 1992-11-12
Abstract: ABSTRACT OF THE DISCLOSURE A process coolant Fluid circulating system, having a heat exchanger, and wherein the heat exchanger has a plurality of tubes extending generally parallel to one another,  first and second header tanks at opposite ends of the tubes, heat exchange fins mounted on the tubes transversely,  an evaporation water tank located below the heat exchanger, and a pump and spray device for spraying evaporation water from the tank, a fan for forcing air through the heat exchanger so that the air evaporates at least some of the evaporation water so as to cool the air and remove heat from the process coolant fluid within the heat exchanger, a vent for venting air and vaporized water to atmosphere,  and an ozone generator associated with the tank, for transferring ozone-rich gases to the tank from the ozone generator so as to reduce bacterial growth in the evaporation water in the tank.
Patent CA-2086356-A1 (CA)
Title: Overhead projector with video output
Inventor: HOLEC HENRY V
IPC: B65H23/032
Filed: 1992-12-29
Abstract: Abstract of the Disclosure An overhead projector (OHP) which provides simultaneous video output of the image which is being projected on the projection screen.  The OHP has a projector head which contains conventional optical components for projecting an image from the stage of the OHP to the projection screen, and further contains a partially silvered mirror which passes a portion of the image to a video camera located within the projector head.  The camera converts the visual information into an electronic signal in standard video format, which may then be transmitted to local or remote auxiliary displays.
Patent CA-2087582-A1 (CA)
Title: Cycloalkylidene bisphenol phosphites
Inventor: NESVADBA PETER
IPC: C08K5/526
Filed: 1993-01-19
Abstract: Novel cycloalkylidene bisphenol phosphites Abstract of the Disclosure There are disclosed novel compounds of formula I                                                   (I), wherein n is 0, 1 or 2, R and R1 are each independently of the other C1-C4alkyl or, when taken together, are a 2,3-dehydropentamethylene radical, R2 and R3 are each independently of the other hydrogen, C1-C4alkyl or C5-C6cycloalkyl, and R4, R5, R6 and R7, if n = 1, are each independently of one another hydrogen or C1-C4alkyl, or, if n = 0 and if n = 2, are hydrogen, as stabilisers for protecting organic materials against thermal, oxidative or light-induced degradation.
Patent CA-2090484-A1 (CA)
Title: Method and apparatus for capturing skin print images
Inventor: FISHBINE BRIAN H
IPC: A61B5/117
Filed: 1991-08-28
Abstract: A system for generating data characteristic of a rolled skinprint in real time. A body part such as a finger contacts a receiving surface (34) of an optical device. The receiving surface is imaged and recorded on an image recording medium (22) during the period of contact. The resulting record is then used to generate digital data representative of the image of the skinprint. This is especially useful for recording a rolled fingerprint image taken on a flat receiving surface.