baber/WOPTO huggingface dataset:
Patent CA-1281304-C (CA)
Title: Method and apparatus for electrolytic reduction of alumina
Inventor: BECK THEODORE R
IPC: C25C3/06
Filed: 1985-10-23
Granted: 1991-03-12
Abstract: ABSTRACT OF THE DISCLOSURE           A cell for the electrolytic reduction of alumina to aluminum comprises an electrolyte bath composed of halide salts having a density greater than aluminum but less than alumina.  A non-consumable anode is located at the bottom of the bath, and a dimensionally stable cathode coated with titanium diboride is spaced above the anode and totally immersed in the bath.  Particles of alumina are introduced into the bath where the alumina dissolves and forms ions of aluminum and oxygen.  The oxygen ions are converted at the anode to gaseous oxygen which bubbles upwardly through the bath, agitating the bath.  As a result, the bath is substantially saturated with dissolved alumina in the region of the anode, and the build-up of a layer of undissolved alumina on the anode is prevented.  The aluminum ions are converted to metallic aluminum at the cathodes, and molten aluminum accumulates as a pool atop the bath above the cathodes.  In one embodiment, the upwardly rising gaseous oxygen bubbles are prevented from mixing with the pool of molten aluminum.
Patent CA-1279289-C (CA)
Title: Extruding reduced viscosity silica into green body, purification and sintering
Inventor: DERKS PIERRE L L M
IPC: C03B19/04
Filed: 1986-03-27
Granted: 1991-01-22
Abstract: ABSTRACT         A method for manufacturing a glass body is described.  A mechanical force is applied to a gel formed from a thixotropic suspension of SiO2 particles to reduce the viscosity of the gel. The gel is forced while it is in this reduced viscosity state through a die to form an extruded green body.  The green body is then purified and sintered to form a glass body.  The apparatus preferably includes an extruding press provided with a ram in the form of a sonotrode of a sonic or ultrasonic generator with a pressure p in the range from 1 to 7.105 Pa and with an oscillation amplitude of the sonotrode in the range from 0 to 60 µm.
Patent CA-1286043-C (CA)
Title: Binder for fibrous padding
Inventor: KENT JAMES
IPC: D06M17/04
Filed: 1986-04-02
Granted: 1991-07-09
Abstract: BINDER FOR FIBROUS PADDING                  Inventor:  James Kent ABSTRACT OF THE DISCLOSURE           Fibrous padding in which the fibers are held together by a binder.  The binder comprises a mixture of (a) an  R.F. sealable dried residue of a thermoplastic latex emulsion, and (b) an R.F.  sealable plastic powder of polyester, polyamide, or mixtures thereof which melting a narrower temperature range than the latex emulsion residue.  Such fibrous padding is capable of R.F. sealing with better adhesion to loose weave knit fabrics which are uncoated with adhesive, and the resulting bond exhibits improved heat stability.
Patent CA-1285520-C (CA)
Title: Electrolytic galvanizing process with controlled current density
Inventor: ALOTA SANTA
IPC: C25D5/00
Filed: 1986-07-17
Granted: 1991-07-02
Abstract: ABSTRACT OF THE DISCLOSURE:            Disclosed is an electrolytic galvanizing process which, due to its very specific conditions of operation, permits one to obtain a highly compact deposit, with good corrosion resistance and surface appearance.  The process is based on the discovery that there exists a precise relationship between the current density and the fluid dynamics conditions of the electrolyte and comprises the steps of continuously passing the body to be coated with zinc through an acid electrolytic solution containing zinc ions in a cell,  passing electrolytic solution through the space defined between an anode and said body serving as a cathode, and adjusting the plating current density, the fluid dynamic conditions of the electrolytic solution or both of said density and fluid dynamic conditions so as to substantially satisfy the relationship defined by the formula I = K C Ren where I is the current density in A/dm2' C is the zinc concentration  in  g/l,   Re  is  the  Reynolds  number characteristic of the electrolytic solution flow, and K and n are empirical variables depending essentially on the geometry of the cell, wherein K is in the range from 10-2 to 10-6, and n is in the range from 0.5 to 1.
Patent CA-1277808-C (CA)
Title: Black liquor concentrating apparatus incorporating black liquor combustion exhaust gas absorbing means
Inventor: HASEGAWA KEIJI
IPC: D21C11/10
Filed: 1986-09-09
Granted: 1990-12-18
Abstract: BLACK LIQUOR CONCENTRATING APPARATUS INCORPORATING BLACK LIQUOR COMBUSTION EXHAUST GAS ABSORBING MEANS     Abstract of the Disclosure:      A black liquor concentrating apparatus is disclosed for concentrating an alkaline waste liquor in wood pulp producing system for producing wood pulp by treating wood chips with alkaline chemicals containing substantially no sulfur compounds, wherein said black liquor concentrating apparatus comprises (1) a primary concentrator for concentra-ting the AP black liquor discharged from said cooking means and washing means, (2) a secondary concentrator for further concentrating the AP black liquor concentrated in said primary concentrator and (3) exhaust gas absorbing means disposed between said primary and secondary concentrators.
Patent CA-1293380-C (CA)
Title: Vanadium recovery process
Inventor: JANSZ JUST J C
IPC: C01G31/02
Filed: 1986-11-17
Granted: 1991-12-24
Abstract: A B S T R A C T                         VANADIUM RECOVERY PROCESS      A process for the preparation of pentavalent vanadium compounds from acid extracts obtained by regenerating spent catalysts which contain vanadium, this process comprising the successive steps of 1) oxidizing extracts containing tri-  and tetravalent vanadium with an oxygen-containing gas at a pH of at least 0.7 - 1.4 P and at most 2.3 - 1.4 P to form a solution of tetravalent vanadium compounds, and 2) continuing the oxidation at a pH lying in the range of from 3.2 - 1.4 P to 2.3 - 1.4 P to form concentrates of pentavalent vanadium, in which P stands for the partial oxygen pressure, in MPa.
Patent CA-1281454-C (CA)
Title: Method for producing thermoplastic resins
Inventor: SUGIMORI TERUHIKO
IPC: C08L51/04
Filed: 1986-12-23
Granted: 1991-03-12
Abstract: ABSTRACT OF THE DISCLOSURE         Emulsion polymerization type thermoplastic resin of high performance can be produced by the following methods: namely, a method which comprises removing an aqueous phase from a two-phase mixture comprising a latex of polymer (1) produced by emulsion polymerization, a water soluble agent (2) in an amount of 10% by weight or less of said polymer (1) which is capable of coagulating the latex of polymer (1) and an organic agent (3) in an amount of 0.1 to 6 times the weight of said polymer (1) which is capable of dissolving both an uncrosslinked polymer contained in said polymer (1) and thermoplastic polymer (4) mentioned hereinbelow and has a solubility in water of 5% by weight or less at 25°C, then melt-mixing molten polymer which has been subjected to a first devolatiliza-tion by a thermal means with thermoplastic resin (4) and then subjecting the mixture to a second devolatilization; and a method which comprises removing an aqueous phase from a two-phase mixture comprising a latex of polymer (1) produced by emulsion polymerization, a water soluble agent (2) in an amount of 10% by weight or less of said polymer (1) which is capable of coagulating the latex of polymer (1) and an organic agent (3) in an amount of 0.1 to 6 times the weight of said polymer (1) which is capable of dissolving an uncrosslinked polymer contained in said polymer (1) and has a solubility in water of 5% by weight or less at 25°C and then melt-mixing the molten polymer from which volatile component has been devolatilized by a thermal means with thermoplastic polymer (4').
Patent CA-1289357-C (CA)
Inventor: BOUREL JEAN
IPC: C23C16/54
Filed: 1987-02-04
Granted: 1991-09-24
Abstract: An automated installation for the rapid thermochemical treatment of parts, notably for the mechanical industry, characterized in that it includes: a transfer lock for the parts under a controlled atmosphere; a plurality of treatment modules of the parts, all said modules being connected to said transfer lock; a loading lock; an unloading lock, and a handling robot for the parts, disposed in said transfer lock in order to provide for the successive transfers of parts between the various modules.
Patent CA-1282208-C (CA)
Title: Pulping additive composition and process
Inventor: DAVIDSON CHARLES M
IPC: D21C3/02
Filed: 1987-02-19
Granted: 1991-04-02
Abstract: Abstract "Pulping Additive Composition and Process"      An aqueous pulping additive composition for use in the kraft process comprising sodium hydroxide, sodium sulphide, sodium polysulphide and sodium thiosulphate wherein the ratio of sodium to total sulphur is selected from the range 1.5-2.5 to 1; and said sulphur in the forms of monosulphide, polysulphide and thiosulphate is in the molar proportions of substantially 1:2:1.  A method of manufacturing the composition comprises a two-stage process wherein elemental sulphur is dissolved initially in only part of the total caustic component used.  The composition provides improved stability and ease of handling over conventional pulping additives.
Patent CA-1279076-C (CA)
Title: Trailer coupler lock with protective housing
Inventor: UTMAN LESLIE H
IPC: B60D1/28
Filed: 1987-02-26
Granted: 1991-01-15
Abstract: ABSTRACT      A locking device for an assembled trailer hitch include a lock mounted within a protective metal housing.  The lock is adapted to receive the legs of a U-shaped shackle.  The lock is mounted for movement within the housing by mounting components connected to the lock by single-faced adhesive foam tape.  One of the locking components includes a ramp making an angle generally about 30 degrees to the bottom of the housing for camming the shackle legs upwardly into operative association with the lock. At the top of the ramp upturned ears are formed which make an angle of about 30 degrees with respect to the direction of shackle movement to further cam the shackle legs into operative association with the lock.
Patent CA-1291647-C (CA)
Title: Windrow turning apparatus
Inventor: LAQUERRE YVES
IPC: A01D84/00
Filed: 1987-03-31
Granted: 1991-11-05
Abstract: ABSTRACT           The present invention relates to an apparatus for  inverting  a windrow of  hay  or  the  like.    The apparatus is in the form of an implement to be drawn by a  tractor  or  any  other  appropriate  vehicle  and comprises a wheeled  carriage  on  which  is  mounted  a pick-up conveyor assembly for gathering an elevating material from a windrow and depositing  the elevated material  on  a  rotating  platform  which  moves  the material  180  degrees  along  a  circular  path.    The material is then discharged on the ground in inverted condition by the forward motion of the carriage.
Patent CA-1280582-C (CA)
Title: Organomagnesium solutions of low viscosity
Inventor: MALPASS DENNIS B
IPC: C07F3/02
Filed: 1987-04-23
Granted: 1991-02-26
Abstract: ORGANOMAGNESIUM SOLUTIONS OF LOW VISCOSITY                 Abstract of the Invention The viscosity of hydrocarbon solutions of dialkylmagnesium con-pounds is reduced by including as the viscosity reducing agent a nitrogen-containing compound which is a piperidine substituted with a hydrocarbyl group (preferably a C1-C6 alkyl, C6-C9 aryl or C5-C6 cycloalkyl group) at the 2-position and optionally further substituted, triethylamine, cyclo-hexylamine, dicyclohexylamine, or N-N-dimethylformamide, or a mixture of two or more of these nitrogen-containing compounds.  The viscosity reduc-ing agent may be used as such or in the form of a substance produced by reacting such a nitrogen-containing compound with magnesium or with a dialkylmagnesiun compound.  The viscosity reducing agent may be used alone, or in a mixture with an organoaluminum viscosity reducing agent.
Patent CA-1287036-C (CA)
Title: Diaphragm valve
Inventor: KOLENC TERRENCE J
IPC: F16K1/34
Filed: 1987-05-01
Granted: 1991-07-30
Abstract: DIAPHRAGM VALVE                  (Abstract of the Invention) A diaphragm valve which uses a multiple annular metal diaphragm welded about its inner periphery to a valve operating stem.  The diaphragm is sealingly clamped about its outer periphery to the valve body and is also clamped about its inner periphery at a location spaced outwardly of the weld to prevent the weld from being subjected to flexure stresses during valve actuation,  The actuating assembly is arranged to produce non-rotary, reciprocatory movement of the operating stem through a bonnet mounted rotary actuator.  An improved stem tip seal arrangement is also disclosed.
Patent CA-1302977-C (CA)
Inventor: HENDRIKS JOHANNES S
IPC: B65H3/52
Filed: 1987-05-07
Granted: 1992-06-09
Abstract: ABSTRACT           A device for discharging sheets has a holder for a stack of sheets such that the stack is pressed against a conveyor  roller  disposed  at  a fixed location above the holder.  The holder is pivotably  secured  to  a  movably mounted  support with the pivot axis being parallel to the roller axis and being situated between the roller and  the center  of  gravity of the holder and straight beneath the center of gravity of the stack.  Springs are connected  to the  support which exert an upwardly directed force on the holder.  As a result of  this  configuration,  the  stack, irrespective  of its size, is pressed against the conveyor roller with a substantially constant force and the  sheets are discharged in substantially the same direction.
Patent CA-1300297-C (CA)
Title: Compositions de resines phenoliques
Inventor: BOINOT FRANCOIS
IPC: C08K5/55
Filed: 1987-06-04
Granted: 1992-05-05
Abstract: Nouvelles compositions de résines phénoliques. Nouvelles compositions de résines phénoliques contenant un additif constitué de triéthanolamine borate ou du mélange amine-dérivé boré oxygéné. Applications à la fabrication de mats préimprégnés.
Patent CA-1302094-C (CA)
Title: Ignition transfer medium
Inventor: BLEWETT FRANCIS M
IPC: C06C9/00
Filed: 1987-06-16
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE         Disclosed is an ignition transfer medium for interconnecting the ignition and later combustion stages of a pyrotechnic device comprising charcoal cloth on which an inorganic oxidant, such as potassium nitrate, is deposited. The medium may also include one or more additional substances to modify the burning characteristics or heat output, and as an example a medium containing 1.0 to 3.5 parts by dry weight of potassium nitrate to 1 part of charcoal cloth may also include 0.05 to 0.40 parts of picric acid. In this example, the picric acid may either be adsorbed on to the cloth fibres before the potassium nitrate is deposited on to the cloth, or the two substances may be deposited simultaneously on to the cloth from an aqueous solution.
Patent CA-1326488-C (CA)
Title: Substituted 1,2,3-thiadiazole-4-thiolates
Inventor: LEE VING J
IPC: C07C327/58
Filed: 1987-07-08
Granted: 1994-01-25
Abstract: Abstract of Disclosure A compound having the formula.                     wherein R1 is selected from the group consisting of hydrogen; alkyl(C1-C6); polyfluorinated alkyls(C1-C6); phenyl; (multisubstituted)phenyl wherein the substituents are selected from alkyl(C1-C6), alkoxy(C1-C3), chloro, fluoro and trifluoromethyl; naphthyl; thienyl; phenylthio; tetrahydropyranyl; benzyl; and -COOC2H5; and R2 is selected from the group consisting of amino and alkoxy(C1-C3).  These compounds are useful as intermediates in the synthesis of cephalosporins.
Patent CA-1291618-C (CA)
Title: Suspension ceiling with snap-up panels
Inventor: MIEYAL DAVID F
IPC: E04B9/26
Filed: 1987-07-15
Granted: 1991-11-05
Abstract: SUSPENSION CEILING WITH SNAP-UP PANELS              ABSTRACT OF THE DISCLOSURE          A snap-up panel for suspension ceiling systems is disclosed.  The panel is formed of sheet metal and provides a central planar section and four upwardly extending flanges along the edges of the planar section.      Each flange is formed with an inwardly directed rib extending along the length of the flange at a point spaced from the upper and lower edges thereof.  Detents are provided in the flanges adjacent to the corners and are positioned in alignment with the ribs and sized to project beyond the inner extremity of the ribs.  These detents provide additional support for the panel when the ribs are snapped over supporting lips in a suspension ceiling grid system.  Improved alignment and support of the panels are provided by the detents when the panels are installed in a suspension ceiling grid.
Patent CA-1303548-C (CA)
Title: Filling apparatus and process
Inventor: EK KURT L
IPC: A23L19/00
Filed: 1987-09-10
Granted: 1992-06-16
Abstract: Abstract Filling apparatus and process An apparatus and process for filling a cored frozen fruit or vegetable comprising a conveyor adapted to run intermittently in a predetermined downstream direction above which is a filler, means for advancing the conveyor to transport the fruit or vegetable with its open end facing upwards to a position below the filler, means for stopping the conveyor at this position for a period of time sufficient for filling and means for restarting the conveyor to transport the filled fruit or vegetable away from the filler, characterised in that the conveyor is provided with a supporting means for the lower surface of the fruit or vegetable having at least three sharp points capable of making an incision in the lower surface and positioned to hold the fruit or vegetable in a substantially fixed and steady position during the filling.
Patent CA-1322639-C (CA)
Inventor: KETCHAM THOMAS D
IPC: B01J2/18
Filed: 1987-10-06
Granted: 1993-10-05
Abstract: Abstract An apparatus and process for producing liquid droplets having a narrow size distribution.  Thin liquid streams are forced under pressure through a plurality of orifices in an orifice plate, the largest of which orifices has a diameter not greater than about three times  the diameter of  the smallest of those orifices.  Also the thin liquid streams are vibrated to  cause  the breakup of  each  stream  into droplets having a narrow size distribution.
Patent CA-1332901-C (CA)
Title: Nonwoven fabric with an acrylate interpolymer binder and a process of making the nonwoven fabric
Inventor: STANISLAWCZYK VIC
IPC: D04H1/64
Filed: 1987-10-08
Granted: 1994-11-08
Abstract: Fibers treated with a novel latex containing a polymeric material of the present invention have an exceptional balance of physical properties.  The novel latex is prepared by polymerizing an unsaturated dicarboxylic acid contained 4 to 10 carbon atoms with a copolymerizable monomer(s) and, optionally, a crosslinking monomer in the presence of an effective amount of a surfactant and initiator. In an preferred embodiment of the process, all of the unsaturated dicarboxylic acid is initially placed in the reactor, and a premix containing the copolymerizable monomer(s) and the crosslinking monomer is metered into the reactor.  The unsaturated dicarboxylic acid is used an amount from about 1 to about 20 weight parts, the amount of the copolymerizable monomer is from about 70 to 98 weight parts, and the amount of the crosslinking monomer, which is optional is from about 0.52 to about 10 weight parts.  The novel polymers have a Tg from about -20°C to about -60°C, a percent hysteresis loss of less than about 20% and exhibit a tensile strength of at least 300 psi and an elongation of at least 350%.  When the novel latex is applied to the fibers, a nonwoven fabric having unique balance of properties is created.
Patent CA-1296295-C (CA)
Title: Two-piece screw closure for containers
Inventor: DUBACH WERNER F
IPC: B65D47/06
Filed: 1987-10-13
Granted: 1992-02-25
Abstract: ABSTRACT       A two piece screw closure for containers is disclosed. A removable guarantee band is provided to prevent tampering with the contents of the container before the first use. The closure has a spout equipped lid which can be turned from the closed position to the open or pouring position which are located 180° apart, following removal of the guarantee band. The base is affixed to the container neck and has a plug projecting outwardly which coacts with a depending annular wall on the lid to seal the container when the lid is in the closed position. Flow-through openings in the base adjacent the plug permit dispensing the contents through the spout.
Patent CA-1286938-C (CA)
Title: Pressurized fluid dispenser
Inventor: HESSEL STEPHEN R
IPC: A61M37/00
Filed: 1987-11-25
Granted: 1991-07-30
Abstract: PRESSURIZED FLUID DISPENSER           Abstract Disclosed  is  an  elastomeric  bladder  infusion  pump which may be used for delivering a pharmaceutically active material to a patient at a substantially constant flow rate.   A unitary internal stress member or mandrel is disposed within the bladder, prestressing the bladder in both the axial and radial dimensions.
Patent CA-1322407-C (CA)
Inventor: WOOD ROGER W
IPC: G11B5/03
Filed: 1987-12-15
Granted: 1993-09-21
Abstract: MAGNETIC RECORD MEDIUM HAVING DISCRETE MAGNETIC STORAGE AND SATURABLE LAYERS AND MAGNETIC SIGNAL PROCESSING APPARATUS AND METHOD USING THE MEDIUM                       Abstract Magnetic record media are described that have an overlying or underlying magnetically saturable high permeability keeper layer in addition to a high coercivity magnetic layer in which magnetic signals are stored. These media are used in magnetic signal processing devices whose transducers are capable of generating a keeper layer-saturating bias flux.  In signal reproduction the bias flux magnetically forms a saturation zone in the nature of virtual gap in the keeper layer that directs signal flux between the media and the transducer.
Patent CA-1313612-C (CA)
Title: Etching solutions containing ammonium fluoride
Inventor: SCARDERA MICHAEL
IPC: H01L21/311
Filed: 1988-01-15
Granted: 1993-02-16
Abstract: ABSTRACT             This invention relates to etching solutions containing wetting agents to properly wet substrates of components in the manufacture of integrated circuits.          The etching solution comprises an aqueous solution of ammonium fluoride and a wetting amount of a nonionic wetting agent selected from the group consisting of an alkylphenol polyglycidol ether having the formula:                            H   wherein R is an alkyl group having from about 4 to about 12 carbon atoms and n is from about 3 to about 15; and an alkyl polysaccharide having the formula:                   R'O(R''O)xZy wherein R' is alkyl, alkylphenol, hydroxyalkyl, hydroxy-alkylphenol, or mixtures thereof and the alkyl groups contain from about 6 to about 18 carbon atoms, R'' is an alkyl group which contains from 1 to about 4 carbon atoms, x is from 0 to about 5, Z is a moiety derived from a reducing saccharide containing from 5 to 6 carbon atoms, and y is from about 1 to about 5.
Patent CA-1333215-C (CA)
Inventor: VANDERSALL HOWARD L
IPC: A62D1/00
Filed: 1988-01-29
Granted: 1994-11-29
Abstract: The present invention is directed to an aque-ous concentrate adapted to be diluted with water and used in fire control. The concentrate exhibits a viscosity of less than about 2000 centipoise and con-taining between about 0.75% and about 6% by weight a thickening agent and at least about 24% by weight of certain fire retardants, particularly diammonium phos-phate, diammonium sulfate, a blend of diammonium phos-phate and diammonium sulfate, a blend of monoammonium phosphate and diammonium phosphate having a nitrogen to phosphorus ratio of at least about 1.25, and a blend of monoammonium phosphate, diammonium sulfate and diammon-ium phosphate having a nitrogen to phosphorus ratio of at least about 1.25.  Processes for the preparation of such concentrates and for use thereof are also dis-closed.