baber/WOPTO huggingface dataset:
Patent CA-1205842-A (CA)
Inventor: CROSSLEY PETER W
IPC: H05B3/74
Filed: 1983-12-05
Granted: 1986-06-10
Abstract: :  15  :     ABSTRACT OF THE DISCLOSURE     Heating apparatus consists of a shallow circular tray having a layer of thermally insulative material disposed therewithin and supporting four infra-red-emitting, tunsten-halogen lamps on flanges.   A moulding of ceramic fibre material is press-fitted around the ends of the lamps and a thermal limiter is provided to limit the operating temperature of the apparatus.   Each lamp is provided with a reflective coating along the lower part thereof, so as to reflect upwardly infra-red radiation emitted in a downward direction.        A number, preferably four, of the heating apparatuses are disposed beneath a layer of glass ceramic to provide a cooking hob.
Patent CA-1216430-A (CA)
Inventor: MULCAHY JOSEPH A
IPC: C21C7/10
Filed: 1984-01-20
Granted: 1987-01-13
Abstract: ABSTRACT OF THE DISCLOSURE Molten steel or other electroconductive metal is treated  with  vacuum  to  remove  dissolved  gases therefrom. A rod of molten steel is drawn from a bath by applying vacuum to a vertical tube dipping into the molten bath.  An electrical coil surrounding the tube applies an intense magnetic field to the steel rod by the  passage  of  high  frequency  alternating  current through  the  coil.   The  rod  is  compressed  radially inwardly by the magnetic field exposing the whole of the external surface of the rod to vacuum.  At the same time,  the induced eddy currents  superheat the  steel rod.  The large surface area of application of vacuum combined with the narrow dimension through which the gas must travel ensure rapid and efficient removal of the gases.   The procedure is repeated until all the steel in the bath has been treated.  Lack of contact of the steel rod with the tube surface eliminates loss of heat by convection and the superheating of the steel rod by the eddy currents ensures that the overall heat losses  are minimal  during processing of  the molten metal bath.
Patent CA-1207805-A (CA)
Inventor: FELICE FRANK T
IPC: C04B35/00
Filed: 1984-02-20
Granted: 1986-07-15
Abstract: ALUMINUM RESISTANT REFRACTORY COMPOSITION          ABSTRACT OF THE DISCLOSURE           A refractory composition for use in contact with molten aluminum alloys containing a refractory aggregate, a binder and 9Al2O3?2B2O3. The aluminum borate may be of the type produced as a by-product in the production of ferro-boron alloys and known as aluminum boron slag.
Patent CA-1207091-A (CA)
Inventor: KURTZ JOHN A
IPC: G01R31/50
Filed: 1984-02-27
Granted: 1986-07-02
Abstract: Title of the Invention LEAD WIRE BOND ATTEMPT DETECTION Abstract A method and circuits are described for sensing and detecting bond attempts and weld attempts during bonding and welding-of lead wire.  The method and circuitry are particu-larly applicable for detecting missed ball bonds and missed wedge bonds during bonding of lead wire between the die pad of a microcircuit chip and the lead frame on which the chip is mounted.  A sensor (30) or sensing circuit (42) senses the different characteristic electrical condition of the lead wire (11) following a ball bond attempt and following a wedge bond attempt. A bond attempt indicator (45). indicates high resistance in the lead wire following a missed ball bond while weld attempt indicator (46) indicates low resis-tance in the lead wire (11) following a missed wedge bond. The lead wire (11) is isolated from uncontrolled contacts with ground potential while the lead wire is held in the bonding tool and bonding machine.  Switching circuit (38) electrically switches and couples the lead wire to a con-trolled ground coupling (27), (52) during ball formation or to a ground isolating voltage source (28), (54) for delivering current to the lead wire and establishing a bond sensing and detecting mode following the ball bonding operating mode and wedge bonding operating mode of the bonding machine.  The switching circuit (38) is actuated by a control signal (40) from the control signal circuitry of the bonding machine or from independent control circuitry.  Time sequence circuitry may also be provided for the control signals.
Patent CA-1185364-A (CA)
Inventor: BETSUDAN SHINICHI
IPC: H01Q21/30
Filed: 1984-04-11
Granted: 1985-04-09
Abstract: ABSTRACT OF THE DISCLOSURE An antenna system having a main reflector, a sub-reflector, and a plurality of horns for radiating different frequencies includes a beam waveguide system which cancels cross polarization otherwise inherent in the system.  The beam waveguide system can be used with a rotationally symmetric and stationary sub-reflector by being positioned to reflect said beam on the axis of the main reflector.          Either the horns or the focusing reflectors may be rotat-ably switched, the other group being stationary.
Patent CA-1220506-A (CA)
Inventor: DIEMER WILLEM H
IPC: H01J35/18
Filed: 1984-05-22
Granted: 1987-04-14
Abstract: ABSTRACT: X-ray tube for generating soft X-rays.     In an X-ray tube, particularly for the detection of elements having a low atomic number by X-ray spectral ana-lysis, an anode support (4) is on the target side provided with a layer (7) of scandium. The scandiun disc is pro-vided on the anode by adhesion via an intermediate layer (8), preferably of chromium. In a reflection tube, the anode block supporting the intermediate layer and the scandium layer is preferably made of silver or copper. In a transmission tube, the scandium is provided on a beryl-10 lium disc which acts as intermediate layer and as an exit window (6).
Patent CA-1230561-A (CA)
Inventor: LUNDIN LARS
IPC: B63B35/32
Filed: 1984-06-05
Granted: 1987-12-22
Abstract: ABSTRACT OF THE DISCLOSURE            The invention relates to a device for picking up oil from water and from the surface of water, the device being installed to a water craft and comprising at least one collecting means passing around rolls and being installed obliquely, there being at the upper end of the collecting means devices for removing the oil collected by the collecting means and for directing it into a tank in the water craft. The object is especially to eliminate the disadvantages of previously known devices of the mat type that, when the craft moves, the mat tends to direct water and, along with it, also oil to the sides, past the mat. In accordance with the invention the device comprises a number of parallel loop-like collecting means, each of which is made up of pieces provided with upwards and side-wards extending bristles and fixed to the chain, the side-wards-directed bristles extending sufficiently far to come into contact with each other, but allowing water to flow without hindrance through the device.
Patent CA-1199369-A (CA)
Inventor: JOHNSTON THOMAS J
IPC: C25C3/20
Filed: 1984-06-08
Granted: 1986-01-14
Abstract: ABSTRACT OF THE DISCLOSURE           An improved probe for an alumina concentra-tion meter is disclosed.  The active anode and cathode surfaces of the probe lie on a common surface.  A bath temperature measuring device is included within the probe.
Patent CA-1219149-A (CA)
Inventor: TSAI LUNG-WEN
IPC: F02B67/00
Filed: 1984-07-09
Granted: 1987-03-17
Abstract: BALANCER FOR 90° V6 ENGINES AND THE LIKE Abstract of the Disclosure:        An even firing 90° V6 four stroke cycle engine is provided with a single line balancer having a combination of primary balance weights and secondary Oldham coupling balancers rotating opposite crankshaft rotation which, combined with crankshaft counterweights, provide complete offsetting of the engine primary rotating un-balance couple together with offsetting of a large portion of the engine secondary rotating unbalance couple and leaving a small residual secondary unbalance couple for absorption by the engine mounting system.
Patent CA-1221765-A (CA)
Inventor: CYBULSKI CLAUDE E
IPC: G11B23/04
Filed: 1984-11-16
Granted: 1987-05-12
Abstract: Abstract of the Disclosure Recording tape cassette has pivotable spring means including a record-lockout tab which blocks an opening when the spring means is cocked.  When placed on a cassette deck, a fixed tang on the deck releases the cocking, allowing the spring means and its record-lockout tab to pivot to a retracted position, thus unlocking the opening.  Thereafter, a feeler on the deck can enter that opening to disable the record function.
Patent CA-1224686-A (CA)
Inventor: BOLANDER WILLIAM J
IPC: F02D41/00
Filed: 1984-12-04
Granted: 1987-07-28
Abstract: METHOD AND APPARATUS FOR CONTROLLING FUEL    TO AN ENGINE DURING COOLANT FAILURE            Abstract of the Disclosure:         A fuel control system for an internal combustion engine senses a failure in the coolant system and supplies fuel alternately to each of the two cylinder ranks for predetermined periods of time so that one of the cylinder banks is supplied with an air and fuel mixture to power the engine and the other one of the cylinder banks is supplied with air only to be cooled thereby to extend the safe operating time of the engine.  The air/fuel ratio of the mixture supplied to the bank provided with a combustible mixture is adjusted to limit the speed of the vehicle to further extend the safe operating time of the engine.
Patent CA-1218294-A (CA)
Inventor: MASON CHARLES E
IPC: E21B47/00
Filed: 1984-12-05
Granted: 1987-02-24
Abstract: Case No. 6828 PUMP DOWN TOOL AND CHECK VALVE   Abstract of the Disclosure A device for use during operation of a borehole survey probe or the like.  The device is attachable to a flexible cable which in turn is con-nected to the survey probe, and the device includes an outer sealing or swab member and an interior valve. The valve and sealing member cooperate during pumping of the survey probe down through a conduit, and the valve opens during retrieval of the survey probe so that fluid in the conduit passes through the device as the survey probe is removed.
Patent CA-1265086-A (CA)
Inventor: WAY PETER F
IPC: C10G21/28
Filed: 1984-12-06
Granted: 1990-01-30
Abstract: ABSTRACT            A method is provided  for continuous removal of poly-chlorinated biphenyl compounds (PCB)  from oil contamin-ated therewith,  comprising  the  steps  of  continuously extracting PCB compounds  from contaminated oil with a PCB-selective  solvent  in  the  stripping  section  of  a multistage  extraction  zone,  partially  distilling  the extract from the extraction zone in a distillation zone, cooling and separating the bottom residue into a solvent phase and an oil/PCB phase,  continuously recycling  a major portion of the oil/PCB phase as extract reflux to the enriching section of the extraction zone where PCs compounds are extracted from the recycled portion by the solvent phase produced in the stripping section of the extraction  zone to  increase  the  PCB  content  of  the extract, and withdrawing a minor portion of the oil/PCB phase  from  the  separation  step  as  a  disposable  PCB residue.
Patent CA-1258396-A (CA)
Inventor: HOYEN HARRY A JR
IPC: G03C1/485
Filed: 1985-01-02
Granted: 1989-08-15
Abstract: DIRECT POSITIVE PHOTOGRAPHIC ELEMENTS          WITH INCORPORATED MAXIMUM DENSITY               ENHANCING ANTIFOGGANTS             Abstract of the Disclosure A black and white direct positive photo-graphic element intended for the formation of a viewable silver image is disclosed.  One or more silver halide emulsion layers are present containing internal latent image forming silver halide grains.          A maximum density enhancing antifoggant is located in an undercoat between the emulsion layer or layers and the support to impart an increase in photographic speed, an extended overexposure margin before encoun-tering rereversal, a decrease in minimum density, and an increase in the covering power of developed silver.
Patent CA-1255617-A (CA)
Inventor: HANAK JOSEPH J
IPC: H01L31/0392
Filed: 1985-03-04
Granted: 1989-06-13
Abstract: ABSTRACT OF THE DISCLOSURE    A  lightweight,  photosensitive  structure is  formed  on an electroplated  substrate,  characterized  by  a  substantially reduced number of surface defects.   The substrate is prepared in an electro forming process by electroplating it on and removing it from the surface of a specifically prepared,  substantially defect-free mandrel.     The substrate may be provided with a preselected surface finished by either texturing the mandrel or controlling  the  parameters  of  the  electroplating process  to determine  the  morphology of the deposit.    The  substrate is especially  useful  for  the  fabrication  of  thin  film photoresponsive devices that incorporate specular or diffuse back reflectors, since the substrate surface texture may be controlled to  provide  for  the  appropriate  type  of  reflectivity.   The photosensitive materials are deposited on the textured surface of the  electroplated metallic  material.    Large-area,  thin  film semiconductor devices incorporating the electroplated substrate are  readily scribed to  form electrically isolated small-area segments for the fabrication of modules, arrays and the like.
Patent CA-1254736-A (CA)
Inventor: BOISSEVAIN MATHEW
IPC: D21F7/00
Filed: 1985-03-13
Granted: 1989-05-30
Abstract: ABSTRACT The specification discloses a steam distributor having a chamber to contain steam on one side of a paper web and a vacuum box on the opposite side of the paper web.  The chamber has a vacuum release device to prevent the chamber from being pulled onto the paper web if vacuum is applied when steam is not applied.  The vacuum release device in one embodiment consists of two flaps substantially closing off the spaces between the bottom of the steam distributor and paper web.  The flaps are hinged so that if vacuum is applied when steam is not applied ambient air forces open the flaps.
Patent CA-1258605-A (CA)
Title: Articles coated with adherent diamondlike carbon  films
Inventor: GIGLIA ROBERT D
IPC: C08J7/046
Filed: 1985-03-29
Granted: 1989-08-22
Abstract: ARTICLES COATED WITH ADHERENT    DIAMONDLIKE CARBON FILMS         ABSTRACT Substrates, especially highly thermally expandable materials, such as plastics are adherently coated with a relatively soft layer comprising carbon and thereafter with a relatively harder layer of diamondlike carbon to provide coated articles that are abrasion resistant, elec-trically insulating, and resistant to chemical attack.  If the substrate is  transparent,  the protectively coated article is transparent too.
Patent CA-1250108-A (CA)
Inventor: MINHAS BHUPENDER S
IPC: B01D67/00
Filed: 1985-04-19
Granted: 1989-02-21
Abstract: TITLE                  A METHOD OF MANUFACTURING A CELLULOSE ACETATE MEMBRANE AND THE MEMBRANE SO PRODUCED     INVENTORS                    Bhupender Singh Minhas Takeshi Matsuura Srinivasa Sourirajan ABSTRACT OF DISCLOSURE       A cellulose acetate membrane is provided, capable of separating gaseous hydrogen from a gaseous mixture of hydrogen and hydrocarbon, by casting a 0.02 to 0.05 cm cellulose acetate film into an atmosphere at 20 to 40°C and a relative humidity of 30 to 70%, from a casting solution at 0 to 20°C and comprising 10 to 20 wt % cellulose acetate, 60 to 80 wt % acetone, 0.5 to 2.0 wt % magnesium perchlorate, balance water, then evaporating the solvent to form a membrane from the film, then gelling the membrane in ice cold water, then shrinking the membrane at 60 to 90°C to produce a water wet membrane having an average pore radius less than 7 .ANG., then replacing the water in the membrane sequentially at the laboratory temperature (about 20 to 25°C) first with aqueous alcohol (isopropyl plus water) and secondly with nonaqueous alcohol (isopropyl), then replacing the alcohol in the membrane with a nonaqueous, readily volatile organic solvent (hexane), and finally evaporating the nonaqueous solvent at laboratory temperature (about 20 to 25°C) to produce a membrane having a pore radius in the range 1.5 to 5.0 .ANG. and a standard deviation in the range 0.5 to 5.5 .ANG., according to the definition of Gaussian normal distribution.
Patent CA-1229098-A (CA)
Inventor: MUELLER DIETER J
IPC: C07C17/10
Filed: 1985-04-23
Granted: 1987-11-10
Abstract: Abstract of the Disclosure For producing unsaturated dichloroisobutenes comprising cis- and trans-1, 3-dichloro-2-methylpropenes and 3-chloro-2-chloromethyl-propene, 3-chloro-2-methylpropene is reacted with sulfuryl chloride in the presence of a catalytically active amount of organic compound from the group of amines and phosphines.
Patent CA-1199480-A (CA)
Inventor: HATAGISHI SHINGO
IPC: B21F45/16
Filed: 1985-05-16
Granted: 1986-01-21
Abstract: A MECHANISM FOR CONVERGING UNCUT FASTENER CHAIN          Abstract A method and apparatus for feeding sliders to a slider pocket are disclosed.  Sliders taken from the pocket are assembled on the fastening element sections of an uncut fastener chain which is moved and stopped intermittently to allow the assembly of the sliders, wherein sliders longitu-dinally aligned and delivered by a slider chute are fed into a slider holder one at a time.  The slider holder carrying a slider received from the chute is transferred to a slider assembling station from a direction at right angles to the direction of fastener chain transfer, and the slider is loaded at the slider assembling station into the slider pocket which is provided at the upper end of a slider pocket block raised from the direction at right angles to both the fastener chain transfer direction and slider transfer direc-tion, and the slider holder is returned to the exit of the slider chute.  These steps are repeated in synchronism with the stopping of movement of the uncut fastener chain.  In loading the sliders into the slider pocket, the sliders are introduced from the side of the pocket so that the slider pull tab will not pose an obstacle, regardness of its shape.
Patent CA-1226075-A (CA)
Inventor: REISMAN ARNOLD
IPC: H01J37/317
Filed: 1985-06-12
Granted: 1987-08-25
Abstract: METHOD AND APPARATUS FOR EXPOSING PHOTORESIST BY       USING AN ELECTRON BEAM AND CONTROLLING      ITS VOLTAGE AND CHARGE                  Abstract of the Disclosure A method and apparatus are disclosed for exposing photoresist using an incident electron beam during the fabrication of a semiconductor device.  The method includes the steps of coating the substrate with a photoresist that is exposed in response to an electron beam.  An electron beam is projected onto the photoresist and deflected to trace a pattern.  The voltage and the amount of charge of the electron beam are controlled as it is deflected so that the energy incident upon the coated photoresist is correlated to variations in the photoresist thickness to expose pho-toresist with minimal penetration therethrough to underlying structures.
Patent CA-1212604-A (CA)
Inventor: DION ERIC P
IPC: E21B49/00
Filed: 1985-06-28
Granted: 1986-10-14
Abstract: METHOD FOR MONITORING POTASSIUM CHLORIDE    CONCENTRATION IN DRILLING FLUIDS                    Abstract of the Invention The potassium chloride concentration of a drilling fluid is monitored during well drilling operations to identify any depletion in such concentration with time.  Initially, the gamma radiation measuring apparatus utilized is calibrated by making gamma radiation measurements on drilling fluid samples having successively increasing potassium chloride concentrations.  A calibration constant is derived from the measured relationship between the potassium chloride concentrations of the various drilling fluid samples and their respective gamma radiation count rates.  This calibration constant is then used along with the measured gamma radiation count rates from drilling fluid taken during well drilling operations to identify drilling fluid potassium chloride concentration.
Patent CA-1259183-A (CA)
Inventor: WU YULIN
IPC: E21B41/02
Filed: 1985-08-13
Granted: 1989-09-12
Abstract: Abstract of the Disclosure A composition is provided which, when applied to a metal surface, forms a corrosion-inhibiting film thereon. The composition comprises the reaction product of a first component selected from an epoxy resin, an epoxidized alkene and a substrate having at least one displaceable halogen, and a second component comprising a monomercaptan in a hydrocarbon diluent. The composition is applied by contacting the metal surface with the composition. The composition is particularly useful in the treatment of down-well metal surfaces in oil and gas wells to inhibit the corrosion of the metal under highly corrosive conditions, and is effective even in the presence of polymeric permeability control agents such as aqueous polyacrylamides.
Patent CA-1216437-A (CA)
Inventor: LA ROU ALBERT M
IPC: F16C35/063
Filed: 1985-08-28
Granted: 1987-01-13
Abstract: ABSTRACT OF THE DISCLOSURE     A shaft locking device for bearing assemblies wherein inner ring finger extensions of the bearing assembly include recessed grooved areas therein at a position remote from the extremities, the grooves being of sufficient breadth and depth to convert shearing stress along such area to bending stress to increase locking tightness and improve radial and thrust accommodation capacity.
Patent CA-1238787-A (CA)
Inventor: BRUCKMANN HEINZ
IPC: C21C1/08
Filed: 1985-09-10
Granted: 1988-07-05
Abstract: Abstract:       An inoculant alloy based on ferrosilicon or silicon for the manufacture of cast iron with lamellar, compact or spheroidal. graphite is described, this alloy comprising a)  between 0.1 and 10% of barium and/or zirconium, b)  less than 2% of aluminum and c)  0.3% of calcium.          This inoculant alloy is distinguished by part-icularly good suppression of the precipitation of carbide and by its preparation process which is indus-trially simple and thus has favorable costs.
Patent CA-1239742-A (CA)
Inventor: CHA CHARLES Y
IPC: C08F220/06
Filed: 1985-09-25
Granted: 1988-07-26
Abstract: TITLE OF THE INVENTION          CARBOXYLIC/SULFONIC/POLYALKYLENE OXIDE POLYMER FOR USE AS SCALE, CORROSION, AND IRON OXIDE DEPOSIT CONTROL         ABSTRACT OF THE DISCLOSURE         The instant invention is directed to a process for inhibiting corrosion and the formation and deposition of scale and iron oxide in aqueous systems, comprising adding to the system at least 0.1 ppm of a water-soluble polymer having an intrinsic viscosity of 0.05 to 2.5 dl/g, prepared from:           (a)  35 to 90%, by weight, of an unsaturated carboxylic acid, or its salt; (b)  5 to 40%, by weight, of an unsaturated sulfonic acid, or its salt; and (c)  5 to 40%, by weight, of an unsaturated, polyalkylene oxide compound. The instant invention is also directed to a water soluble polymer, having an intrinsic viscosity of 0.05 to 2.5 dl/g, prepared from:     (a)  35 to 90%, by weight, of an unsaturated carboxylic compound selected from the group consisting of acrylic acid, methacrylic acid, maleic acid, itaconic acid, their salts and mixtures thereof; (b)  5 to 40%, by weight, of an unsaturated sulfonic compound selected from the group consisting of 2-acrylamido-2-methylpropyl-sulfonic acid, 2-methacrylamido-2-methylpropyl sulfonic acid, methallyl sulfonic acid, allylsulfonic acid, vinyl sulfonic acid, styrene sulfonic acid, their salts and mixtures thereof; and (c)  5 to 40%, by weight, of an unsaturated, polyalkylene oxide compound.
Patent CA-1238924-A (CA)
Inventor: ANCHOR MICHAEL J
IPC: C08G65/337
Filed: 1985-10-02
Granted: 1988-07-05
Abstract: POLYETHERS                Abstract of the Disclosure The instant invention relates to a process which comprises modifying a conventional polyoxyalkylene polyol by capping all the hydroxyl groups of the polyol with benzyl, aryl, substituted benzyl, substituted aryl or alkyl groups having 1 to 4 carbon atoms.  This process comprises reacting the conventional polyoxyalkylene polyol with an alkali metal methoxide followed by reaction with an alkali metal hydride which in turn is followed by reaction with an organic halide.