baber/WOPTO huggingface dataset:
Patent CA-2077252-A1 (CA)
Title: Methods of making ureas and guanidines, and intermediates therefor
Inventor: KARIMIAN KHASHAYAR
IPC: C07D271/113
Filed: 1992-08-31
Abstract: Novel methods for the synthesis of substituted ureas and guanidines including Terazosin, Prazosin, Doxazosin, Tiodazosin, Trimazosin, Quinasin and Bunazosin (exemplary of 2-amino substituted Quinazolines), Meobentine and Bethanidine and novel intermediates suitable for use in such methods of synthesis are taught.
Patent CA-2078230-A1 (CA)
Inventor: DEFFEYES ROBERT J
IPC: H01G4/12
Filed: 1991-03-26
Abstract: Multilayered ceramic capacitors are manufactured using electrode machine coating densification techniques. The capacitors produced have electrodes (12) and dielectric layers (14) which are more uniform, thinner and flatter than prior art electrode and dielectric layers. An electrode pattern is printed on a release sheet (10) and calendered. A dielectric overcoats the electrode pattern and is calendered, forming an electrode embedded green sheet. The green sheet is stacked with similarly formed electrode embedded green sheets, the stack is laminated and unfinished capacitors are cut from the stack.
Patent CA-2079379-A1 (CA)
Title: Process for the preparation of siloxane-oxyalkylene copolymers
Inventor: MCMULLEN ANNE K
IPC: C08G77/46
Filed: 1992-09-29
Abstract: ABSTRACT          The invention provides an improved solventless hydrosilation process for preparing a siloxane-oxyalkylene copolymers, the improvement comprising conducting the reaction in the presence of at least one sodium metal phosphate.
Patent CA-2081255-A1 (CA)
Title: Delivery apparatus for thin invert emulsions
Inventor: WALDRUM JOHN E
IPC: A01M21/00
Filed: 1992-10-23
Abstract: Abstract of the Disclosure A delivery system for a liquid chemical agent is especially adapted for thin oil/water inverts and includes recirculation for agitating the agent and a nozzle arrangement wherein uniform droplets are produced due to surface tension.  The system has a reservoir, a first conduit which is airfoil shaped and has spray nozzles along its length, coupled to the first conduit through check valves,  and a pump for moving the agent into the first conduit under pressure.  A second conduit within the first has an inlet communicating with the reservoir and an outlet remote from the inlet along the first conduit.  For discharge the agent is pumped into the two conduits in parallel, pressurizing and opening the check valves.  For recirculation, the agent is pumped out of the first conduit and into the reservoir, thus producing negative pressure for closing the check valves and agitating the agent, which flows serially through the conduits.  The negative pressure positively prevents leakage of the agent through any removed or stuck-open outlet, and by allowing ingress of air through a valve or the like the conduits can be drained into the reservoir.  The conduits preferably are coupled to a base fitting having distinct couplings for the boom and the tube.  The discharge nozzles each have a tubular housing leading smoothly from the trailing edge of the boom to a horizontal wedge shaped terminus.  A manifold in the housing  leads  to  capillary  sized  outlet  openings  along  the terminus.   The check valves are simple spring mounted plungers opening under pressure of the liquid.
Patent CA-2084478-A1 (CA)
Title: Rare earth sesquisulfides compositions, preparation and applications
Inventor: CHOPIN THIERRY
IPC: C09D7/12
Filed: 1992-12-03
Abstract: A rare earth sesquisulphide of formula M2S3 has an interstitial structure (in which M is an element from the lanthanide gp. or yttrium, and contg. an alkaline earth element as a dopant). At least part of the latter is included in the crystal lattice of the sulphide, and the material is in the form of a powder of average particle size 0.2-5 microns. Also claimed are their prepn..
Patent CA-2084998-A1 (CA)
Title: Hydrodynamic bearings having spaced bearing pads and methods of making same
Inventor: IDE RUSSELL D
IPC: F16C17/03
Filed: 1992-04-15
Abstract: A hydrodynamic thrust, journal or combined radial and thrust bearing. The bearing includes a bearing pad structure that may change shape and move in any direction (six degrees of freedom) to optimize formation of a converging wedge for hydrodynamic operation, equalization of load on the bearing pads in thrust bearings and to adjust for any shaft misalignment. The bearing pad (12) may be formed so as to contact the shaft in the installed state and to deflect under fluid film pressure. The shape of the pads (12) may be altered to achieve desired deformations under load. The pads are supported by a support structure which can include one or more beam-like members (14).
Patent CA-2086242-A1 (CA)
Inventor: GALPER AVRAHAM
IPC: G10D9/00
Filed: 1992-12-23
Abstract: 2086242 9201282 PCTABS00010 In a woodwind instrument, the improvement comprising a speaker vent extending from inside to outside of the instrument, said speaker vent being characterized by an internal volume in the range of 200 mm3 to 285 mm3.
Patent CA-2086788-A1 (CA)
Title: Process for increasing the yield during the flotation of potash salts
Inventor: HAGEDORN FRITZ
IPC: C01D3/08
Filed: 1993-01-06
Abstract: The process for the flotation of potash salts, using conditioning agents in the pre-flotation and post-flotation stages, is optimized. The starting material is at first floated with a partial quantity of the collector and a first pre-concentrate is formed; then the remainder of the collector as well as the frothing agent and the modifiers, especially non-polar substances, are added and a second pre-concentrate is generated.
Patent CA-2089684-A1 (CA)
Title: Landing nipples
Inventor: WILLIAMSON JIMMIE R JR
IPC: E21B34/14
Filed: 1993-02-17
Abstract: IMPROVEMENTS IN OR RELATING TO LANDING NIPPLES            ABSTRACT         A safety valve landing nipple (10) selectively provides communication between a surface control line (12) and the internal bore (21) of said landing nipple by use of a rotary member (34).  A rotary shifting tool (24) is used to rotate the rotary member so that a cutting means (29) shears the end of a shearable plug (13) in the wall of the landing nipple, so as to provide communication between the surface control line and the internal bore of the landing nipple.  The disclosure includes a method of providing communication within a landing nipple (10) between a surface control line (12) and an internal bore (21) of the landing nipple by use of a rotary shifting tool (24), and a rotary shifting tool having a rotatable outer mandrel means (38), an inner mandrel means (32), a travel means (35) and a diametrically retractable means (30).     (Fig. 2)
Patent CA-2089810-A1 (CA)
Title: Tubular surgical cutting instruments
Inventor: SASTRI SURI A
IPC: A61B17/32
Filed: 1991-08-13
Abstract: A surgical instrument for use in endoscopic surgical procedures having an outer elongated tubular member and a concentric inner elongated tubular member positioned in and rotatable within the outer tubular member having an opening in its distal end and the inner tubular member having a cutting edge positioned at its distal end so as to coincide with and be exposable through the opening in the outer tubular member to effect the cutting of tissue and the removal of tissue by aspiration, a coating of a metal from the group consisting of silver and gold extending substantially around the circumferential surface of at least one of the outer surface of the inner tubular member or the inner surface of the outer tubular member, the metallic coating from the group consisting of silver and gold being of such thickness and extending a sufficient distance along the axial length of the member.
Patent CA-2091098-A1 (CA)
Inventor: WALTON ERIC K
IPC: B32B17/10
Filed: 1993-03-05
Abstract: A slot antenna formed in combination with a vehicle window.  An electrically conducting, optically transparent film panel is bonded to the window and terminates so that its outer peripheral edge is spaced from the innermost edge of the metal framing the window to define a polygonal antenna slot between the edges.  An unbalanced transmission line is connected to the antenna by connecting the grounded conductor to the framing metal near the metal edge and coupling the ungrounded conductor to the conductive panel near the juxtaposed, interfacing edge of the conductive panel.
Patent CA-2092770-A1 (CA)
Title: Carboxylic acid esters of 2-amino-7-/(1,3-dihydroxy-2-propoxy)methyl/purine, their preparation and their use
Inventor: JAEHNE GERHARD
IPC: A61P31/12
Filed: 1993-03-26
Abstract: ABSTRACT OF THE DISCLOSURE:          Carboxylic acid esters of 2-amino-7-[(1,3-dihydroxy-2-propoxy)methyl]purine, their preparation and their use Compounds of the formula 1   in which the radicals R1 and/or R2, independently of each other, are acyl radicals of the formula -C(=O)-R3        (2), where R3 is (C1-C3)-alkyl, and one of the radicals R1 and R2 can also be hydrogen, and their physiologically tolerated salts, have an antiviral effect.
Patent CA-2092904-A1 (CA)
Title: Computer with tablet input to standard programs
Inventor: MARTIN PATRICIA A
IPC: G06F3/038
Filed: 1991-06-20
Abstract: A computer system having a digitizing tablet overlaying the display screen. The tablet serves as a user's primary input device.  Various features of the system make it possible for the user to run and interact with standard programs designed for keystroke and mouse input and not designed for use with a tablet. In addition to the main processor, on which the user's programs are executed, there is an interface processor. In addition to a standard display buffer, there is an ink plane buffer for interface display data that is combined with the data from the standard display buffer on a pixel-by-pixel basis according to data from a mask plane buffer. The interface processor manages input from the tablet, presents feedback to the user by means of the ink and mask planes, and provides keystroke and mouse data to the main processor as if from a standard keyboard controller. The interface processor presents the user with a collection of simulated devices, including standard devices such as a keyboard and a mouse. A nonstandard simulated device performs character recognition, permitting handwritten characters to be used for program input. During interaction with one of the user's programs, the user can activate and deactivate simulated devices (by removing them from and returning them to a device tray) and can make adjustments in their operation and location on the screen.
Patent CA-2093058-A1 (CA)
Title: Absorbable dusting powder derived from reduced-protein modified starch
Inventor: FITT LARRY E
IPC: A61L29/00
Filed: 1993-03-31
Abstract: Absorbable dusting powders suitable for medical, consumer and industrial applications such as lubricating gloves and medical apparatus are prepared by treating starch with a hypochlorite to remove protein and oxidize some of the hydroxyl groups. The modified starch dusting powders are free flowing and are characterized by a protein content of less than about 0.15% by weight and hydroxyl groups oxidized to a level of from about 0.03 to about 0.5% by weight. Protein content can be reduced further by washing with water.
Patent CA-2093287-A1 (CA)
Inventor: EGGERT HEINRICH
IPC: B29C51/00
Filed: 1993-04-02
Abstract: Abstract Blister Pack The invention relates to a blister pack comprising a base with product unit retaining wells and a covering film thereon to seal said wells, each well having a side wall and a well base and containing at least two product units arranged one above the other, wherein said side wall is thinner than said well base and is deformable to create a product unit retaining means when pressure is applied to said well base to release the uppermost product unit from the well, said retaining means serving to retain the subsequent product unit in said well and being deformable under further pressure exerted on said well base whereby to permit release of said subsequent product unit.  The blister pack can be produced by cold deep-drawing of polypropylene films or plastics films having similar mechanical properties.
Patent CA-2099776-A1 (CA)
Title: Granular composition
Inventor: ARNOLD RAYMOND E
IPC: C11D11/02
Filed: 1992-01-16
Abstract: The invention relates to use of a water dispersible isophthalic acid polymer as a dust free coating on particulates. The parti-cles provide a timed release of the contents of the particle which allows for reduced amounts of active agents on the coatings and less interference between active agents in the coating or environment and the particulates.
Patent CA-2100483-A1 (CA)
Inventor: LIPSZTAJN MAREK
IPC: C25B15/00
Filed: 1993-07-14
Abstract: The voltage requirements of a membrane-divided cell are decreased by operating the cell with a catholyte temperature significantly in excess of the anolyte temperature, generally at least 10°C greater and preferably at least 20°C greater. The invention is particularly useful in an electrochemical acidification process whereby aqueous sodium chlorate and sodium sesquisulfate solution is acidified for use in a chlorine dioxide generating process and aqueous sodium hydroxide is produced as a by-product.
Patent CA-2100554-A1 (CA)
Inventor: CONVENTS ANDRE C
IPC: C11D3/386
Filed: 1992-01-13
Abstract: The present invention relates to detergent compositions comprising a high activity cellulase in combination with a softening clay. In the detergent compositions herein, the cellulase comprises a cellulase of high activity defined by the C14CMC-method. Preferably the detergent composition comprises a softening clay together with a clay flocculating agent and in case of liquid composition an anti-settling agent for the clay.
Patent CA-2101367-A1 (CA)
Title: Filter element
Inventor: BRUGGER STEPHAN
IPC: A61M16/10
Filed: 1993-07-27
Abstract: ABSTRACT OF THE DISCLOSURE When using an inhalation device, the patient inhales an aerosol which has been produced by a nebulizer. When inhaling, the aerosol reaches the patient's airways and lungs; when exhaling residual quantities of the aerosol can be in the expired air. In some cases it is necessary to avoid releasing the residual quantities of the aerosol into the air. This can be accomplished by a filter set. The filter set disclosed herein includes a first filter housing part, a second housing part, a filter element adapted to be clamped between the both housing parts, and a valve formed as part of the second filter housing. Due to the construction of the filter set, the filter element can be easily replaced.
Patent CA-2102554-A1 (CA)
Title: Universal remote control device for cameras
Inventor: MARTIN STANLEY D
IPC: G03B17/38
Filed: 1993-11-05
Abstract: A wireless remote controlled, adjustable and programmable freestanding mount and shutter release assembly for various styles of cameras. An enclosure body with adjustable legs houses a microcomputer which directs an electrically controlled piston which delivers its shutter releasing energy through a docked cable release. A collapsible bracket can be optionally secured to the enclosure to align a plunger assembly over a camera's shutter release button. A prominent visual display reveals the status of the control system.
Patent CA-2103083-A1 (CA)
Inventor: LESCUYER JEAN-LOUIS
IPC: F23G7/04
Filed: 1993-11-15
Abstract: Procédé de traitement d'un effluent comprenant des matières organiques polluantes et/ou un composé inorganique en vue de récupérer un effluent propre débarrassé de ces matières organiques ou recyclable. Le procédé est du type dans lequel on introduit dans une première zone par un premier comburant et par un combustible ce par quoi on réalise une phase de combustion, le comburant étant introduit selon une trajectoire hélicoïdale; on force ensuite ladite phase de combustion dans une seconde zone à travers un passage restreint, ce par quoi on lui confère un écoulement puits-tourbillon présentant un axe de symétrie; on introduit l'effluent dans la zone de symétrie axiale dudit écoulement puits-tourbillon; ce procédé est caractérisé en ce qu'on introduit en outre par un comburant supplémentaire dans ladite zone de symétrie axiale.
Patent CA-2105173-A1 (CA)
Title: Dynamic material testing apparatus having independent control over specimen deformation and strain rate, and a method for use therein
Inventor: FERGUSON HUGO S
IPC: G01N3/18
Filed: 1992-02-28
Abstract: Apparatus, and an accompanying method for use therein, for a dynamic material testing system, and particularly for one that tests a specimen by compressively deforming its work zone and that has independent control over specimen deformation (strain) and strain rate. The apparatus can also simultaneously direct resistance heat or conductively cool the specimen, under controlled conditions, in order to establish isothermal planes at a desired substantially uniform temperature throughout the specimen work zone before, during and after each compressive deformation thereof.
Patent CA-2106645-A1 (CA)
Title: A linear link selectively providing for lost motion
Inventor: HENDERSON HENNING M
IPC: F16C1/22
Filed: 1993-09-21
Abstract: A linear link is provided which comprises an inner and  an outer  telescopically  movable  pair  of members in which a catch arrangement is operative between   formations   on   the   two   members   to selectively lock them in one particular telescopic position, or to allow them to move telescopically, thereby  providing  for  a  limited  and  optionally adjustable degree of lost motion between the ends of the linear link.   A co-axial solenoid carried by the outer member controls the catch arrangement to provide selectively for rendering it operative or not according to whether or not the solenoid is energised.   The  linear  link may be  lockable  in either its maximum or minimum degree of telescopic extension.
Patent CA-2110382-A1 (CA)
Title: Controlled catalytic and thermal sequential pyrolysis and hydrolysis of mixed polymer waste streams to sequentially recover monomers or other high value products
Inventor: CHUM HELENA L
IPC: C10G1/08
Filed: 1992-06-01
Abstract: A process of using fast pyrolysis in a carrier gas to convert a plastic waste feedstream having a mixed polymeric composition in a manner such that pyrolysis of a given polymer to its high value monomeric constituent occurs prior to pyrolysis of other plastic components therein comprising: selecting a first temperature program range to cause pyrolysis of said given polymer to its high value monomeric constituent prior to a temperature range that causes pyrolysis of other plastic components; selecting a catalyst and support for treating said feed streams with said catalyst to effect acid or base catalyzed reaction pathways to maximize yield or enhance separation of said high value monomeric constituent in said temperature program range; differentially heating said feed stream at a heat rate within the first temperature program range to provide differential pyrolysis for selective recovery of optimum quantities of the high value monomeric constituents prior to pyrolysis of other plastic components; separating the high value monomeric constituents; selecting a second higher temperature range to cause pyrolysis of a different high value monomeric constituent of said plastic waste and differentially heating the feedstream at the higher temperature program range to cause pyrolysis of the different high value monomeric constituent; and separating the different high value monomeric constituent.
Patent CA-2111570-A1 (CA)
Title: Termination equipment for an optical fibre cable
Inventor: KERRY JOHN
IPC: G02B6/44
Filed: 1992-06-18
Abstract: An optical fibre connection terminal for use in the office or domestic environment comprises a three-part module, having a base unit (1a, 1b), an organiser unit and a top unit. An optical fibre cable such as a blown fibre cable, is brought to the base unit (1a, 1b) where both the outer covering and the secondary coated optical fibres carried by the cable are secured against tensile forces.      The three units (1, 2, 3) of the module are then designed to store fibre, to hold splice protectors where necessary, and to provide a well protected route for the fibres from the cable to an easily accessible connection point for customer use in the top unit of the module. Connection or termination of each fibre at the connection point can be made and remade, drawing spare fibre length from a storage area in the module without disassembling the module. An important part of the module lies in a cam action clamping mechanism for retaining fibre within the module. The module provides an optical fibre connection terminal which is equivalent to a 13 amp mains electricity terminal for connection of domestic or office equipment to an optical communications network.
Patent CA-2115248-A1 (CA)
Inventor: INAMASU TOKUO
IPC: H01M10/052
Filed: 1993-06-28
Abstract: Abstract of the Disclosure A battery equipped with a cathode composite (2), an anode composite or an anode (4), an electrolyte layer (3) and a sealing material (6); characterized by that a material such as an element belonging to VIII-group of periodic table such as palladium etc., for example, is included in an inside of the battery.   Gas produced in the battery inside is absorbed to the above material or added to a residual reactive double bond in an ion-conductive high-molecular compound by the above material, so that a rise of battery inside pressure due to gas is restrained and expansion and bursting of the battery are thus prevented.
Patent CA-2115431-A1 (CA)
Inventor: RADOSTA JOSEF
IPC: A61L2/00
Filed: 1993-04-02
Abstract: The present invention relates to a specific method of champignon fungus treatment by which a dry mass is obtained including a substance which provides for an outstanding antiallergic effect. Said method is characterized by step of disinfection carried out with proper disinfection means and preceding the steps of drying and cutting of said champignon mass, these steps being followed by the step of sterilization by ionization comprising the use of a cobalt charge (bomb) which is carried out after said mass has been formed into a final product.
Patent CA-2115744-A1 (CA)
Title: Method and apparatus for cleaving semiconductor wafers
Inventor: SMITH COLIN
IPC: H01L21/301
Filed: 1992-08-14
Abstract: A method and apparatus are described for cleaving a relatively thin semiconductor wafer for inspecting a target feature on a workface thereof by: producing, on a first lateral face of the semiconductor wafer, laterally of the workface on one side of the target feature, an indentation in alignment with the target feature;  and inducing, e.g., by impact, in a second lateral face of the semiconductor wafer, laterally of the workface on the opposite side of the target feature, a shock wave substantially in alignment with the target feature and the indentation on the first lateral face, to split the semiconductor wafer along a cleavage plane essentially coinciding with the target feature and the indentation.
Patent CA-2116985-A1 (CA)
Inventor: SULLIVAN TIMOTHY J
IPC: G06F12/06
Filed: 1994-03-04
Abstract: The memory system disclosed herein can utilize a variable number of separately replaceable memory banks which can be implemented with memory elements, such as dynamic random access memory chips, which are of differing speeds and or sizes. The memory system implements an interleaving of memory addresses among the memory banks as a function of the number of banks actually present so that successive memory accesses are not unnecessarily delayed by the recovery times of the memory elements.
Patent CA-2121352-A1 (CA)
Title: Novel thrombin-inhibitory protein from assassin bugs
Inventor: FRIEDRICH THOMAS
IPC: C07K14/00
Filed: 1992-10-27
Abstract: The description relates to a novel thrombin inhibiting protein from reduvii with a molecular weight of some 12000 Dalton and the N-terminus Glu-Gly-Gly-Glu-Pro-Cys-Ala-Cys-Pro-His-Ala-Leu-His-Arg-Val-Cys-Gly-Ser-Asp.  The protein is useful in combatting diseases.