baber/WOPTO huggingface dataset:
Patent CA-2087046-A1 (CA)
Title: Method of removing carbonates from plating baths
Inventor: LEUTWYLER RENE
IPC: C25D21/18
Filed: 1993-01-11
Abstract: ABSTRACT     Carbonates, and particularly sodium carbonate, are removed from cyanide containing plating baths by taking from said cyan-ide containing bath at least part of its bath liquid; stirring and cooling in a cooling container the token liquid while in the metastabile state until crystallization of the carbonates occurs; separating the crystallized carbonates from the liquid; and leading the residual liquor back to the plating bath. Pre-ferably, the quantity of bath liquid taken from the plating bath and the moment of this taking are chosen so as to bring the carbonate content of said plating bath, after leading the residual liquor back to it, to a carbonate content of 25 to 45 grams/liter, and the cooling is continued until the exothermic reaction, which is caused by the liberation of the heat of cry-stallization, starts, and thereafter the mixture is still held for 2 to 4 minutes at 0.5 °C to 1 °C below this starting tem-perature. The method is useful for all kinds of cyanide con-taining baths and provides essential technical, ecological and economical advantages.
Patent CA-2088381-A1 (CA)
Title: Gimbal vibration isolation system
Inventor: KIUNKE PAUL C
IPC: F16F15/02
Filed: 1993-01-29
Abstract: A gimbal vibration isolation system suitable for use with an inertial platform to enable accurate positioning of the platform independently of a presence of vibratory translational movement upon a gimbal housing enclosing the platform employs a frame assembly centrally located within the platform for pivoting the platform and for isolating the platform from vibration. The platform is formed of two plate assemblies disposed on opposite sides of the frame assembly, with each of the plate assemblies carrying portions of a laser gyro and ancillary optical and electronic equipment. The gimbal housing includes a drive ring rotatable about a central axis and encircling the frame assembly which is connected to the drive ring. A central portion of the frame assembly carries a pivot which pivotally supports the platform. An electromagnetic actuator is located at each of a plurality of positions located circumferentially around the central axis wherein each actuator has a first part connecting with the frame and a second part connecting with both plate assemblies of the platform to accomplish a pivoting between platform and frame assembly upon activation of each actuator. The frame assembly further includes a plurality of vibration isolation elements of resilient material disposed symmetrically about the central axis and being connected between the first parts of respective ones of the actuators and the drive ring to allow operation of the actuators in an environment substantially free of translatory vibrational movement.
Patent CA-2091847-A1 (CA)
Title: Preparing and coating a glass substrate
Inventor: ALLMAN JACK C
IPC: C03C17/42
Filed: 1993-03-17
Abstract: PREPARING AND COATING A GLASS SUBSTRATE                    Abstract of the Disclosure Glass is primed with a clear coat which is a mixture of an organosilane and an organotitanate.  Subsequently the primed glass is coated with a coating composition comprising a fluorocarbon, an organosilane and/or an organotitanate, an inorganic pigment and a thermoplastic polyacrylate resin that has no functional groups reactive with the organosilane or organotitanate, the coating composition being carried in an organic solvent.
Patent CA-2092901-A1 (CA)
Title: Acetone removal process
Inventor: ZOELLER JOSEPH R
IPC: C07C51/56
Filed: 1991-09-25
Abstract: Disclosed is an improved process for the removal of acetone from a production system wherein acetic anhydride is produced by contacting a mixture comprising methyl iodide and methyl acetate and/or dimethyl ether with carbon monoxide in the presence of a carbonylation catalyst or catalyst system. The process comprises a water-methyl iodide extraction step wherein acetone is separated from a mixture of methyl acetate, methyl iodide and acetone.
Patent CA-2093141-A1 (CA)
Title: Machine and devices incorporated therein for the manufacture of a laminated textile fabric composite material containing a superabsorbent polymer
Inventor: BARRETT GEORGE
IPC: B65B9/02
Filed: 1992-08-03
Abstract: A method and apparatus for manufacturing a continuous quilt-like sheet (25) containing superabsorbent material (12) in discrete cells formed between two sheets (2a, 3a) of fluid permeable fabric.  The cells are formed by fusion of the two fabric sheets at selected locations in a continuous pattern through application of pressure and heat, completely enclosing individual localized deposits of material placed between the fabric sheets.
Patent CA-2093227-A1 (CA)
Title: Safety syringe with retractable needle
Inventor: MCGARY R KERN
IPC: A61M5/315
Filed: 1991-09-27
Abstract: An improved safety syringe (10) with retractable needle (30) is provided which allows retraction of the needle (30) into a hollow plunger (18) by additional forward pressure on the plunger (18) after the fluid is driven from the syringe (10). The present invention contemplates an improved syringe device with retractable needle (30) and a method of delivering fluid to a patient and retracting the needle (30) within the syringe (10) after the fluid is delivered. The syringe (10) preferably includes a hollow plunger (18) inserted into one end (16) of a cylindrical barrel (12) and a hollow needle (30) attached to the other end (14) of the barrel (12). Biasing means is attached to the barrel (12) for biasing the needle (30) toward the hollow plunger (18), and means is pro-vided for releasing the needle (30) into the hollow plunger (18) by applying additional forward pressure upon the plunger (18) af-ter the plunger is fully extended into the barrel (12). The present invention is particularly convenient for the operator to use in a one-handed fashion and is relatively uncomplicated and easy to manufacture.  Further, the present invention is non-reusable after the needle is retracted thereby preventing reuse of a potentially contaminated syringe.
Patent CA-2095567-A1 (CA)
Inventor: CHERUKURI SUBRAMAN R
IPC: A23L1/308
Filed: 1993-05-05
Abstract: This invention pertains to a reduced-calorie, low-moisture absorbing bulking agent  composition which comprises  polydextrose  and  a  second  bulking  agent selected from the group consisting of isomalt, mannitol, and  maltitol,  wherein  polydextrose  is  present  in  an amount of at least about 50% and the second bulking agent is present in an amount from about 20% to about 40%, by weight of the bulking agent composition.   The bulking agent  compositions may be used  in a wide variety  of ingestible   compositions   such   as   chewing   gums, confections, and the like.  This invention also pertains to methods for preparing these reduced-calorie, low-moisture absorbing  bulking  agent  compositions  and  the ingestible compositions in which they may be employed.
Patent CA-2095919-A1 (CA)
Title: Noise attenuation panel
Inventor: WILSON ROBERT S
IPC: F02C7/045
Filed: 1992-05-27
Abstract: Noise attenuation panel (10) comprises a component having a front face for exposure to sound to be attenuated and is made of or includes or comprises a reinforced frontal region which includes the front face and which is made of a porous permeable composite material formed from a thermoplastic matrix material reinforced with one or more non-thermoplastic reinforcing materials. The frontal region is preferably produced by powder sintering the composite material. The reinforcing materials may be in the form of discrete particles and comprise a powder, microspheres or microballoons or in the form of fibres which may be discontinuous or continuous filament fibres. The reinforced frontal region may be formed as a facing component part with the panel including a base component part having an array of cells. Alternatively, the component has an open-celled structure which includes the frontal region.
Patent CA-2101380-A1 (CA)
Title: Method for dual fluid injection molding
Inventor: SHAH CHANDRAKANT S
IPC: B29C45/17
Filed: 1993-07-27
Abstract: A process for injection molding of thermoplastic materials which includes a nozzle body having a bore to provide a flow path for molten thermoplastic.  One end of the nozzle body is adapted for connection with a sprue of an associated mold body, and the other is adapted for connection with an end of an associated injection molding machine.  The nozzle body has a shut-off valve fluid pin housing adapted for reciprocating movement in the nozzle bore to control the flow of plastic through the nozzle body.  The shut-off valve fluid pin housing also includes a body having an adjustable fluid pin with a tip portion and a fluid passage formed in the body and open at the tip portion and the other end of the fluid passage communicating with a source of two pressurized fluids, one in vapour and liquid phase and another in gas.  The shut-off valve is actuated to allow thermoplastic material to flow and subsequently a first pressurized fluid vapour is allowed to flow to form a hollow cavity in the thermoplastic material and then terminated and a second fluid which is a gas is allowed to flow into the cavity followed by the liquid of the first fluid.  The fluid flow is controlled by the fluid pin shape and stroke adjustments.  After the thermoplastic material has set, the pressurized fluid is vented through the fluid pin housing passage into a fluid condenser for recovery of the vapour and liquid and then into atmosphere.
Patent CA-2106130-A1 (CA)
Inventor: LANGER ALFRED
IPC: C03C3/06
Filed: 1993-09-14
Abstract: Ultraviolet (UV) radiation in the UV-C and UV-B bands, which is particularly dangerous, is absorbed and filtered by quartz and preferably between 0.065%  and T.3%, glass doped with between 0.065% and 3.25%;/ by weight, of cerium metal, or cerium as such. Preferably, the cerium is added to quartz sand and/or rock crystal, in form of a fine-grained powder of up to 2 0 µm grain size, in form of cerium aluminate and preferably up to about 2%, (CeAlO3), present in up to about 5% by weight,/ and melted together in a single step. The quartz glass so obtained is particularly suitable for a metal halide discharge lamp, e.g. as an outer envelope (1), or as the discharge vessel (27) itself, or for halogen incandescent lamps, to form the quartz-glass light bulb or an envelops therefor. A small quantity of titanium oxide, up to about 0.05%, may be added as a further doping agent to the melt to further improve the UV absorption in the B and C bands.
Patent CA-2111303-A1 (CA)
Title: Flower presser
Inventor: SUGINO NOBUO
IPC: A01G5/06
Filed: 1993-12-13
Abstract: A flower presser has at least two or more dry sheets coated or saturated with a desiccant and contained in a holder case which is made of a damp-proof flexible material and has an opening in the upper end.  The opening of the holder case is airtightly closed by a fastener or sealing means so that a flower(s) sandwiched between the dry sheets in the holder case can readily be pressed and dried.
Patent CA-2114149-A1 (CA)
Title: Fiber optic gyroscope modulation error reduction
Inventor: SZAFRANIEC BOGDAN
IPC: G01C19/72
Filed: 1993-01-15
Abstract: An error control arrangement for an optical fiber rotation sensor having electromagnetic waves propagating in opposite di-rections passing through a bias optical phase modulator (19) operated by a phase modulation generator (20) both of which can contribute second harmonic distortion resulting in errors in the sensor output signal which are controlled. Control of the bias opt-ical phase modulator (19) contribution for a modulator having a piezoelectric body (30) wrapped with an optical fiber portion (40) is accomplished by mounting the body between layers (33, 35) having nonlinear stiffness.
Patent CA-2114239-A1 (CA)
Title: Pharmaceutical composition containing carbachol and other cholinergic substances
Inventor: HAHNENBERGER RUDOLPH W
IPC: A61K31/341
Filed: 1992-08-07
Abstract: The present invention relates to the use of substances based on carbachol, methacholine, bethanechol, furtrethonium and arecholine having cholinergic properties for the preparation of medicaments for the treatment of keratoconjunctivitis sicca.
Patent CA-2116539-A1 (CA)
Inventor: KRIEGER HUBERT
IPC: F41A19/46
Filed: 1993-06-24
Abstract: A firearm, for example a semiautomatic weapon, in particular an automatic pistol, has control elements for controlling several operation or adjustment functions of the weapon. By means of an easily exchangeable functional element (9.9') for example a cam disk, it is possible to determine which operation or adjustment function, among all functions made possible by the weapon control elements, the user can set at his weapon. The functional element (9,9') and/or a component (5) for holding the functional element (9,9') is designed and arranged in such a way that it can only be easily fitted in and removed from the firearm not assembled or only disassembled into its main parts (1,4), but also replaced by another type of functional element. The functional element (9,9') can be non-rotatively stuck on and removed from a rotary shaft (5), for example the hammer shaft. It is proved at its periphery with notches (9c) corresponding to determined angular positions of the shaft (5) in which the shaft (5) actuates control elements of the weapon for controlling various operation or control functions of the weapon.
Patent CA-2117573-A1 (CA)
Inventor: WILKIE ANDREW F
IPC: B32B27/08
Filed: 1994-08-24
Abstract: An oriented polymeric alpha-olefin film having: an isotactic polypropylene homopolymer core; a cold seal release skin layer adherent to one side of the core; and a surface treated cold seal receptive layer or such treated layer with a cold seal cohesive composition over the surface treatment of said layer on the other side of the core. The cold seal release skin layer comprises a slip agent and a blend of two polymers, namely, an ethylenepropylene random copolymer containing about 2% to 8% of ethylene in such copolymer and an ethylene-butylene copolymer containing about 0.5% to 6% of ethylene in such copolymer. The cold seal receptive layer is of an ethylene-propylene random copolymer containing about 2 to 8% of ethylene.
Patent CA-2119725-A1 (CA)
Inventor: RIZZO JOHN M
IPC: C05C3/00
Filed: 1994-03-22
Abstract: A method for increasing the yield of rice crop plants by foliar application to the plants during the plant growth stage a granular fertilizer consisting essentially of urea and ammonium sulfate in a urea/ammonium sulfate.  The granular fertilizer has a urea/ammonium sulfate weight ratio of about 4/1 and contains at least 40% nitrogen and at least 4% sulfur.  The relatively high N-S fertilizer is applied at relatively high rates of about 100 to 150 pounds per acre to ensure that the fertilizer nutrients are always  available  to the rice plants at several stages of their growing period.
Patent CA-2120852-A1 (CA)
Title: 9-substituted fluorenyl compounds and the preparation and use of metallocenes thereof
Inventor: ALT HELMUT G
IPC: C08F4/00
Filed: 1994-04-08
Abstract: 9-substituted fluorenyl-containing metallocenes and their use in the polymerization of olefins is disclosed. In addition, novel 9-cyclohexylfluorenyl or 9-phenylfluorenyl compounds are disclosed. Also methods for preparing such 9-substituted fluorenyl compounds are presented.
Patent CA-2121545-A1 (CA)
Title: Method for transforming monocotyledons
Inventor: HIEI YUKOH
IPC: A01H1/00
Filed: 1994-04-18
Abstract: Disclosed is a method for transforming a monocotyledon by which the time required from transformation to regeneration of a plant is shorter so that the frequency of emergence of mutants is smaller that the conventional methods, which may be generally applied even to the plants for which the regeneration method from a protoplast to a plant has not been established, and with which the preparation of the material to be subjected to the method is easy. The present invention provides a method for transforming a monocotyledon comprising transforming a cultured tissue during dedifferentiation process or  a dedifferentiated cultured tissue of said monocotyledon with a bacterium belonging to genus Agrobacterium containing a desired gene.
Patent CA-2123425-A1 (CA)
Title: Apparatus and method for locating sediment in a container
Inventor: KING ARTHUR V
IPC: G01N29/024
Filed: 1992-09-21
Abstract: ABSTRACT OF THE DISCLOSURE           Apparatus  and  method  for  locating  and  mapping sediment in a partially liquid filled container.   A sonar transducer is mounted for emitting acoustic energy into the liquid and for receiving reflected acoustic energy.   The transducer is rotatable about mutually perpendicular first and second axes  for dual-axis capability.   The transducer is controlled to emit discrete signals and receive reflected signals along scanning axes is a predetermined sequence of rotational positions.  The distance between the transducer and a corresponding point of reflection along each scanning axis is  compared to a predetermined reference distance.   The reference  distance  represents  the  distance  between  the transducer and the container along the corresponding axis. The points of reflection whose distances to the transducer are less than the respective reference distances are identified as sediment.  The identified points are combined to form a three-dimensional representation of the sediment. The representation is superimposed on a representation of the container, whereby one can continually monitor the quantity and location of the sediment in the container.
Patent CA-2124583-A1 (CA)
Title: Synthetic compounds and compositions with enhanced cell binding
Inventor: BHATNAGAR RAJENDRA S
IPC: C07K14/435
Filed: 1992-12-03
Abstract: Compositions of the invention include composites comprising a biomaterial carrying compounds with enhanced cell binding with respect to collagen. These composites are useful for soft and hard tissue repair or reconstruction. Suitable compounds with enhanced cell binding include synthetic peptides that mimic the conformation necessary for recognition and docketing of collagen binding species (such as cell surface receptors for collagen and fibronectin). Hydrogel matrices as the biomaterial promote cell attachment to the matrix and cell migration into the matrix.
Patent CA-2125517-A1 (CA)
Title: Retention System for Operable Flexible Shades
Inventor: MANTHEI DAVID
IPC: E06B9/58
Filed: 1994-06-09
Abstract: A retention system for operable flexible shades. The system includes a flexible sheet of a size which substantially covers a wall opening, and which is connected at its top edge to an operable roller.  A side casing having a channel is mounted at each side edge of the wall opening.  A plurality of generally parallel stays is applied to one of the opposing surfaces of the sheet for providing rigidity to the sheet, and to assist in keeping the edges of the sheet within the channels when a positive pressure is applied to the sheet.  A grommet sized to remain within a channel during the rolling and unrolling of the sheet is affixed at each end of at least some of the stays.
Patent CA-2128865-A1 (CA)
Title: Mositure curable polysiloxane release coating compositions
Inventor: LEIR CHARLES M
IPC: C09J7/02
Filed: 1993-01-21
Abstract: A release coating composition comprising: a) a polydiorganosiloxane having at least one reactive hydrolyzable group .alpha.  connected to a silicon atom, wherein R3 is a monovalent alkyl group with about 1 to 3 carbon atoms; Z is a monovalent moiety selected from the group consisting of -OR and -R wherein R is an alkyl group having about 1 to 3 carbon atoms; Y is a divalent alkylene linking group comprising about 1 to 12 carbon atoms; Q is a divalent linking group selected from urea, amide, urethane, thiourethane, ether and thioether; t is an integer from 0 to 10; and X is a divalent alkylene linking group comprising about 1 to 12 carbon atoms; b) a component selected from the group of compounds of the general formula (R3O)3 - Si - A, hydrolysates thereof, and mixtures thereof, wherein R3 is as previously defined; A is a monovalent moiety selected from the group consisting of -OR3, alkyl group with about 1 to 20 carbon atoms, and -X-(Q)p - [D-Q]t -(Y)b - SiCOR3)3 wherein X, Q, t, Y and R3 are as previously defined; D is a divalent group selected from alkylene groups with about 2 to 30 carbon atoms; aralkylene groups with about 6 to 30 carbon atoms; arylene groups with about 6 to 30 carbon atoms;  and divalent polymeric segments having a number average molecular weight of about 500 to 10,000 selected from polyether, polyolefin, polyester, polydiene, and mixtures thereof; p is 0 or 1; b is 0 or 1; wherein when t is an integer of 1 to 10, b must equal 1 and p must equal 1; wherein when t=0 and b=0, p must also equal 0;  and c) a component selected from acids having pKa less than about 3, anhydrides of acids having pKa less than about 3, ammonium and lower alkyl ammonium salts of acid having pKa less than about 3, and mixtures thereof. The release coating composition of the invention has excellent shelf stability and pot life and cures rapidly, completely and reliably in atmospheric moisture in a controllable manner when coated on a variety of substrates.
Patent CA-2131221-A1 (CA)
Title: Method and apparatus for rendering objects on a display with added realism
Inventor: FRANK EDWARD H
IPC: G10L21/10
Filed: 1994-08-31
Abstract: The graphics applications of a 2-D graphics computer system provide each object to be rendered on a 2-D raster display with a pair of rendering reference coordinates (x and y), and a relative depth value (z). Additionally, the computer system is provided with a library of predetermined D images and sounds, and a number of graphics toolkit routines. As the user "moves", the graphics toolkit routines render selected ones of the predetermined images based on x/z and y/z values of recomputed x and y rendering coordinates and the relative depths value z of the objects, and actuate the sounds if applicable based on their predetermined manners of rendering. As a result, the objects that are further away from the user will move slower than the objects that are closer to the user, thereby introducing the effect of parallax and added realism to the 2-D graphics computer system at a substantially lower cost.
Patent CA-2131241-A1 (CA)
Title: Cadmium zinc telluride borehole detector
Inventor: ROSCOE BRADLEY A
IPC: G01T1/24
Filed: 1994-08-31
Abstract: A gamma ray or x-ray detector for borehole use includes a cadmium zinc telluride crystal having the general formula Cd1-x Zn xTe, where x represents the zinc fraction of the material and preferably is within the range of 0.05 <= x <= 0.95. The noise edge and energy resolution characteristics of the detector may be improved by surface treating the crystal to reduce leakage current. The detector has particular application to bulk density and photoelectric absorption factor logging.
Patent CA-2132086-A1 (CA)
Title: Fluid catalytic cracking process for increased formation of isobutylene and isoamylenes
Inventor: MADON ROSTAM J
IPC: C10G11/05
Filed: 1993-03-18
Abstract: A composite fluid catalytic cracking catalyst comprising a non-zeolitic component of at least 45 % A1203 and containing Í 30 %  Y zeolite with unit cell size Í 24.29 A·, the matrix (non-zeolitic component) of said catalyst having a B.E.T. surface area ã 50 m2/g and a catalyst Lewis/Bronsted acid site ratio of ã 1.5 wherein the total number of Bronsted acid sites is Í 30 micromoles/g of catalyst. The catalyste is used to increase the isobutylene and isoamylenes content of cracked products obtained in a fluid catalytic cracking unit.