baber/WOPTO huggingface dataset:
Patent CA-2056783-A1 (CA)
Title: Preparing isomer free 1,1-dichloro-2,2,3,3,3-pentafluoropropane
Inventor: SPRAGUE LEE G
IPC: C07C17/00
Filed: 1991-12-05
Abstract: ABSTRACT OF THE DISCLOSURE           In the reduction of a trichloropentafluoro-propane to produce 1,1-dichloro-2,2,3,3,3-pentafluoropropane, the improvement which comprises effecting the reduction with a sulfite in an aqueous medium.
Patent CA-2058243-A1 (CA)
Title: Process for extracting or disposing of ammonia or ammonia compounds from dust mixtures and washing water
Inventor: MARTIN WALTER J
IPC: B01D53/58
Filed: 1991-12-20
Abstract: ABSTRACT     In order to recover or dispose of ammonia or ammonia compounds from mixtures of dust and washing water that occur during combustion processes, during subsequent gas cooling, or during subsequent gas scrubbing, the dust that is created is mixed in batches with water in a closed system at a temperature that is lower or equal to the temperature at which the dust leaves the combustion, cooling or scrubbing process, and the resulting vapours are drawn off in a vacuum.  The waste water is brought into close contact with a substance or mixture of substances from the zeolite group as a processing medium.
Patent CA-2059802-A1 (CA)
Inventor: WAGGAMON DENNIS W
IPC: E05F15/00
Filed: 1992-01-22
Abstract: A door operation control system has a door opening for moving a door between open and closed positions. A door operator control circuit selectively operates the drive means to move the door between the open and closed positions. An obstruction detection device detects whether there is an obstruction in the path of the door between the open and closed positions and generates a signal in response thereto. The obstruction detection device is connected to the control circuit by wiring to permit operation of the door opener in the absence of a signal from the obstruction detection device and to prevent certain operations of the door opener in the presence of a signal from the obstruction detection device. An error detection circuit detects faults or errors in the wiring and generates a signal to prevent certain operations of the door operator when the faults or errors are detected. The error detection circuit prevents unsafe operation of the door opener if a wiring error has made the obstruction detection device inoperative. <IMAGE>
Patent CA-2060888-A1 (CA)
Title: Polyolefin stretch non-woven fabric and method of making it
Inventor: NAKAJIMA TAKAYOSHI
IPC: D04H1/541
Filed: 1991-05-01
Abstract: 2060888 9117296 PCTABS00008 A stretchable nonwoven polyolefin fabric is produced by heat fusing a web of a mixed fiber containing at least 30 wt. % of a highly crimpable and heat-fusible conjugate fiber of polyolefin in such a manner that the area of each heat fusion point ranges from 0.007 to 0.8 cm2 and the sum of the areas accounts for 10 to 40 %  of the surface of the web and heat treating the web thus fused to crimp the conjugate fiber. The obtained fabric is soft to the touch and can be utilized as the base cloth of bandage, poultice, and other sanitary materials.
Patent CA-2064710-A1 (CA)
Title: Recombinant protein which binds to a complex viral antigen of hiv-1
Inventor: JUNGBAUER ALOIS
IPC: C07K19/00
Filed: 1991-05-28
Abstract: Abstract The invention relates to a recombinant protein which binds to a complex viral antigen of HIV-1.  The manufacture, production, purification and application of this protein are described.  The protein contains the variable regions of a human anti-HIV-1 antibody connected by a linker.  The production is carried out in various prokaryotic or eukaryotic systems.  Biochemical chromatographic methods are used for the purification. The described recombinant protein can be used for detecting, quantifying and purifying HIV-1 antigen.
Patent CA-2066738-A1 (CA)
Title: Prevention, treatment and amelioration of a pathology characterized by brain inflammation
Inventor: RUBIN LEE L
IPC: A61P25/00
Filed: 1990-09-13
Abstract: An in vitro model of a blood-brain barrier comprising a porous solid support upon which is disposed an essentially confluent monolayer of brain microvascular endothelial cells in contact with agents that elevate effective cyclic AMP concentrations in endothelial cells, with or without astrocyte-derived or endothelial cell-derived conditioned medium or the equivalent so that high electrical resistance tight junctions are formed between endothelial cells, and endothelial cells exhibit peripheral phalloidin staining and E-cadherin. Also disclosed is the use of agents that reduce effective cyclic AMP concentrations or interfere with the functioning of cyclic AMP or increase effective cyclic GMP concentrations to open up blood-brain barriers in vitro and in vivo, so that drugs normally excluded by such barriers may substantially penetrate such barriers. Also disclosed are uses of the model to screen for reagents with clinical utility in disorders involving brain endothelial cells. The prevention, treatment, and amelioration of a pathology characterized by brain inflammation are described herein. Uses of agents that inhibit binding of VLA-4 to brain endothelial receptor VCAM-1 are included. These agents may be antibodies, peptides, peptidomimetics, or related compounds.
Patent CA-2067423-A1 (CA)
Title: Silane products from reaction of solid silicon monoxide with aromatic halides
Inventor: BOKERMAN GARY N
IPC: B01J23/80
Filed: 1992-04-28
Abstract: SILANE PRODUCTS FROM REACTION OF SOLID SILICON         MONOXIDE WITH AROMATIC HALIDES                              ABSTRACT           The described invention is a process for preparing silanes from the reaction of solid silicon monoxide with aromatic halides.  The solid silicon monoxide is reacted with the aromatic halide in the presence of a catalyst which can increase the conversion of silicon monoxide to silanes and partially select for arylsilane products.  The process may employ an activation step in which the solid silicon monoxide is activated by heating in an inert atmosphere.  Activation of the solid silicon monoxide can increase silicon conversion and increase selectivity for arylsilane products.
Patent CA-2068105-A1 (CA)
Title: Gas pressure regulator with check valve
Inventor: STURGIS MALCOLM B
IPC: G05D16/06
Filed: 1992-05-06
Abstract: GAS PRESSURE REGULATOR WITH CHECK VALVE            Abstract of the Disclosure This invention represents an improvement in a gas pressure regulator of the type comprising a body having an inlet, an outlet, a gas flow passage in the regulator body interconnecting the inlet  and outlet,  and a regulator mechanism in the valve body including a relief valve which is set to open when the pressure of the gas in the flow passage exceeds a predetermined pressure.  The improvement comprises a valve seat in the gas flow passage immediately upstream from the outlet in the body of the regulator, and a check valve member in the gas flow passage disposed between the valve seat and the outlet in the body of the regulator, the check valve member being movable between an open position in which it is spaced from the valve seat to permit flow in downstream direction from the inlet to the outlet past the valve seat, and a closed position in which the check valve member prevents reverse flow in upstream direction past the valve seat.   In the event gas  is introduced into a downstream line to test the downstream gas line and its connection to the outlet of the regulator body, the check valve member closes to prevent opening of the relief valve even if the pressure of the gas introduced into the downstream line for testing is greater than the pressure at which the relief valve in the regulator is set to open.
Patent CA-2068831-A1 (CA)
Title: High productivity spheroid nitrocellulose
Inventor: FUNG KWAN F
IPC: B01J2/10
Filed: 1992-05-15
Abstract: HIGH PRODUCTIVITY SPHEROID NITROCELLULOSE                    ABSTRACT OF THE DISCLOSURE           Fibrous water-wet nitrocellulose containing 4.5 to 5.5% moisture sprayed with a solvent/cosolvent mixture converts to spheroid, densified nitrocellulose via bilateral agitation.  A free-flowing dust-free product having a lower burn rate is produced which dissolves more rapidly for lacquer production.  A preferred apparatus is an orbital shaker and a preferred solvent/cosolvent is isopropyl acetate/isopropyl alcohol.
Patent CA-2073454-A1 (CA)
Title: Method and apparatus for providing privacy/security in a communications system
Inventor: TOBIAS RAY W JR
IPC: H04K1/00
Filed: 1990-02-16
Abstract: Apparatus and methods are disclosed for providing privacy on communications systems which include radio links, in a manner which does not require a scrambler/descrambler at each called party location. The apparatus includes a base module (28) having a call diverter (30) connected to the public switched telephone network through two standard telephone lines (1-2). A bypass interface circuit (34) is connected to the call diverter between the connections to the two telephone lines to selectively connect a scrambler/descrambler (32) in series with the two telephone lines.
Patent CA-2074627-A1 (CA)
Title: Ionically vulcanizable fluoroelastomeric copolymers
Inventor: ARCELLA VINCENZO
IPC: C08F214/18
Filed: 1992-07-24
Abstract: IONICALLY VULCANIZABLE FLUOROELASTOMERIC COPOLYMERS       Abstract of the Disclosure Fluoroelastomeric copolymers,  vulcanizable by ionic methods, suitable for the manufacture of "shaft seals" and "fuel hoses", comprising by weight:                   VDF   30-47%                   HFP   20-40%                   PAVE   3-20%                   TFE   10-30%,
Patent CA-2074860-A1 (CA)
Inventor: HATTORI TOMOYUKI
IPC: G02B6/36
Filed: 1992-07-29
Abstract: A method of reinforcing a multiple optical fiber coupling unit is provided including the steps of removing a portion of longitudinal coatings of optical fibers of the multiple optical fiber coupling unit to expose glass portions of said optical fibers; fusing a portion of the exposed glass portions so as to optically couple the optical fibers; extending the fused portion to a predetermined state; fixing non-extended portions of the exposed glass portions on a first reinforcing substrate with a first adhesive; and fixing the first reinforcing substrate on a second reinforcing substrate with a second adhesive. The multiple optical fiber unit coupler made by this method has a transmission characteristic that does not substantially change even with a temperature change and under high humidity.
Patent CA-2075012-A1 (CA)
Title: Defibrillator with user-interactive screen display
Inventor: ALFERNESS CLIFTON A
IPC: A61N1/39
Filed: 1992-07-30
Abstract: Abstract of the Disclosure A defibrillator designed to determine and display (1) the current which is anticipated to be provided to a patient by a defibrillation pulse generated by the defibrillator when the former is to be provided in the form of an energy dose and (2) the energy which is anticipated to be provided to a patient by a defibrillation pulse generated by the defibrillator when the former is to be provided in the form of a current dose. The defibrillator is also designed to determine and display how changes in the transthoracic impedance of the patient will change (1) the magnitude of the selected energy level of the defibrillation pulse when the defibrillator is in the energy dose mode and (2) the magnitude of the selected current level of the defibrillation pulse when the defibrillator is in the current dose mode.       LHM/lhm:sal
Patent CA-2075645-A1 (CA)
Title: Guide apparatus for copy masters
Inventor: FRICK BEAT
IPC: G03B27/62
Filed: 1992-08-10
Abstract: In a guide apparatus for a copy master, guide elements are provided which define a transport plane of the copy master and which comprise lateral walls located essentially perpendicular to the plane of transport of the master and approximately parallel to the direction of copy master transport. The lateral walls guide the lateral edges of the copy master. A detector is further provided to detect the information applied near lateral edges of the copy master. The lateral walls of the guide apparatus are laterally adjustable in case of variations of the width of the copy master in the plane of transport.
Patent CA-2078117-A1 (CA)
Title: Surface conditioner for formed metal surfaces
Inventor: AWAD SAMI B
IPC: C10M107/48
Filed: 1991-03-06
Abstract: Contact of acid or alkaline cleaned aluminum surfaces, particularly cans, with a water based composition containing a combination of (i) alkoxylated phosphate esters, (ii) ions of aluminum, zirconium, iron, tin, and/or cerium, (iii) a metal etching component, and (iv) a combination of alkoxylated alcohol and alkoxylated alkyl phenol emulsifiers, gives the surface after drying lowered surface friction without loss of high quality printability and lacquer adhesion and removes any brown spotting on the cans that may have developed during the cleaning or post-cleaning rinses. The cans after treatment are substantially free from any water breaks when rinsed with water. The foaming resistance and storage stability of the water based composition as de-scribed above, and of other similar surface friction reducing treatments for aluminum containers, may be advantageously in-creased by adding a biocidal agent, preferably hydrogen peroxide, and a combination of liquid paraffin, solid wax, and a high molecular weight fatty acid derivative(s) as antifoam agent.
Patent CA-2078845-A1 (CA)
Title: Mine Roof Expansion Anchor and Bail Member Therefor
Inventor: WRIGHT RAYMOND L
IPC: E21D21/00
Filed: 1992-09-22
Abstract: A bail member having a medial portion of substantially conical shape for retaining shell and tapered plug portions of a mechanical expansion  anchor  in  mutually  assembled  relation  prior  to installation.  The medial portion is positioned over the large end of the plug and tapers inwardly in a direction away from the plug to provide a lead-in for insertion of the anchor, carried on the end of a mine roof bolt, into the open end of a blind drill hole.   The bolt and medial portion may  include an axial  bore and a plurality of openings, respectively, for passage of a hardenable grout pumped through the bore to provide an anchoring system of enhance strength and durability.
Patent CA-2080979-A1 (CA)
Title: Process to prepare n-(2-hydroxyalkyl)-n- phosphonomethylglycine
Inventor: FIELDS DONALD L JR
IPC: C07F9/40
Filed: 1992-10-20
Abstract: 39-21(2662)A                         ABSTRACT PROCESS FOR THE PREPARATION OF N-HYDROXYALKYL-N-PHOSPHONOMETHYLGLYCINE           An efficient process is disclosed for the preparation of N-(2-hydroxyalkyl)-N-phosphonomethyl-glycine represented by the formula   which comprises heating, preferably to reflux, an aqueous solution of glyoxal and N-(2-hydroxyalkyl)amino-methylphosphonic acid represented by the formula   wherein R and R1 are individually hydrogen, an alkyl having 1 to 4 carbon atoms, or aryl.  Preferably both R and R1 are hydrogen.
Patent CA-2083292-A1 (CA)
Title: Holder for a string of lights
Inventor: BLOTT TIMOTHY A
IPC: B65H75/18
Filed: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE           In general, holders for Christmas lights and other strings of lights are formed of cardboard or plastic, and are either somewhat flimsy or unnecessarily complicated.  The holder described herein is relatively simple, easy to mass produce and use, and includes an elongated foam plastic body with parallel, spaced apart longitudinally extending grooves facilitating manual handling of the holder; and longitudinally extending rows of cylindrical recesses between the grooves for receiving the bulbs of a string of lights, the recesses having diameters such that there is a friction fit between the bulbs and the recesses.
Patent CA-2084662-A1 (CA)
Title: Process forming and dimensionally stabilizing shaped laminate
Inventor: KAVANAGH DEAN L
IPC: B32B38/00
Filed: 1991-06-07
Abstract: A process for forming a shaped laminate for use in a safety glazing such as a vehicle window or the like which comprises lightly bonding at least one flexible, transparent, thermoplastic carrier layer having one or more adherent functional performance layers or coatings on its surface to at least one layer of plasticized polyvinyl butyral to form a premolding composite, stretching the composite to impart compound curvature thereto and form a shaped, shrinkable laminate, subjecting the shaped laminate to elevated temperature while constraining its edges to relieve stresses in the carrier layer, and cooling the shaped laminate while maintaining its edges constrained. Also a method of dimensionally stabilizing a transparent, shrinkable thermoplastic layer, such as polyethylene terephthalate, in a draw-formed laminate with plasticized polyvinyl butyral which comprises heat setting the thermoplastic layer.
Patent CA-2085638-A1 (CA)
Title: Solar powered amp
Inventor: HOFER ROLAND
IPC: H04B1/38
Filed: 1992-12-17
Abstract: Abstract This is a Rod Serling type of creation that generates fear and the artist traps himself. It is an invention that should only be used for psychic research but could be very marketable at the beach on a volleyball court. The volleyball team would speak through a headset microphone and their voices would be picked up on a crystal earphone. These headsets would be driven by a solar cell. There is a two way radio element here. There could also be one main power supply. The headset could also be used by a surfer who is out in the sun on L.S.D.* and just wants to hear himself speak. This device could bring him back to reality.     *this writer has not done L.S.D  advocates its use
Patent CA-2086805-A1 (CA)
Title: Tubing pinch valve device
Inventor: CAMPAU DANIEL N
IPC: F16K7/06
Filed: 1993-01-06
Abstract: TUBING PINCH VALVE DEVICE                  ABSTRACT OF THE DISCLOSURE    A pinch valve is provided for controlling the flow  in    a flexible wall tube.   The valve includes a slotted saddle with female threading to receive a male threaded stem which is actuated within the saddle by a knob integrally connected to the stem.  The slotted saddle may be installed onto an existing tube run without requiring disconnection.   The stem has a spherical tip which contacts  the  tube  to  collapse  to  decrease  the  area  flow therethrough.  The knob and saddle are closely fitted to prevent spreading of the saddle during high thread loads.  Calibration is also provided so that a desired flow control can be repeated with accuracy.
Patent CA-2091432-A1 (CA)
Inventor: KUHNS ROGER
IPC: G07C9/00
Filed: 1993-03-10
Abstract: A method of identifying persons for the purpose of preventing fraud in the receipt of benefits. The method comprises inputting into a data base biometric data relating to the persons in question such as sex, age, eye colour, height, weight, facial images, voice prints, body prints etc. Such data is then used to assign a time period in which each such person may be present at an issue station to receive the benefit. The presence of each such person at the issue station is detached and the benefit is issued only if the person reports to the issue station during that time period.
Patent CA-2091778-A1 (CA)
Inventor: SAVIA RISTO
IPC: D21F9/00
Filed: 1992-07-20
Abstract: Une partie à deux toiles formant la bande pour une machine à papier comprend des boucles à deux toiles composées d'une première toile (1) ainsi que d'une seconde toile (2), de l'eau s'y écoulant à partir d'une toile (W) pour être formée dans deux sens à l'intérieur d'une zone d'égouttage à deux toiles établie par lesdites toiles. Un rouleau de tête (4) guidant une première toile (1) est ouvert et un jet (S) resserré de découpage en tranche vient au contact de la première toile (1) à l'intérieur de la zone de contact du rouleau ouvert (4) et au contact de la seconde toile (2) en aval du rouleau de tête (5) le guidant. La distance (L) entre la toile (1) reposant sur le rouleau de tête ouvert (4) au point divergent de la premiere toile et le rouleau de tête (4) à partir de ladite seconde toile (2) reposant en ligne droite entre son propre rouleau de tête (5) et l'élément de guidage (6) guidant les toiles ensemble est de préférence inférieure de 1 à 4 mm à l'épaisseur du jet (S) resserré de découpage en tranche.
Patent CA-2092977-A1 (CA)
Title: Polycarbonate copolymer and method for production thereof
Inventor: OKUMURA RYOZO
IPC: C08G64/00
Filed: 1993-03-30
Abstract: ABSTRACT OF THE DISCLOSURE:   Disclosed herein is a polycarbonate copolymer comprising repeating units respectively made of a bisphenol A and a tetrahalogenobisphenol A and having a trihalogenophenoxy group as an end group at the terminal, particularly both terminals thereof and a method for efficiently producing said polycarbonate copolymer.          This polycarbonate copolymer is superior in impact resistance, flame retardance, molding thermostability and the like, is good in hydrolytic resistance, is much less liable to cause a mold rust and has high quality.  Therefore, this polycarbonate copolymer will be extensively used in various industrial materials, for example as the flame retardant parts for household electric appliances, office automation apparatuses and the like.
Patent CA-2093170-A1 (CA)
Title: Easily tearable multilayer packaging film material
Inventor: LIGHT SUSAN L
IPC: B32B15/08
Filed: 1993-04-01
Abstract: ABSTRACT OF THE DISCLOSURE         A packaging material has a laminated structure 10 composed of a first layer 12 comprising oriented polypropylene, a second layer 14 comprising a polyether urethane adhesive material, a third layer 16 comprising aluminum foil or a flexible thermoplastic membrane resin material with a metallic membrane material, and a fourth layer 18 comprising a resin extrudate material.  The oriented polypropylene provides linear tear characteristics that enables the package 22,24 to tear continuously along a defined line.  The second layer 14 provides an adhesive lamination between the first 12 and third layer 16.  An aluminum foil layer provides moisture and light barrier protection.  In the fourth layer 18, ethylene copolymer resin is bonded to the aluminum foil layer and imparts heat seal characteristics required for package fabrication.  In a alternative embodiment, a primer material layer 20 is provided to bolster the adhesion between one or more of the various layers 12,14,16,18 of the laminate structure 10. The package 22,24 formed from the material of the invention has superior tear continuation, toughness and penetration resistance properties.
Patent CA-2093175-A1 (CA)
Inventor: KATZ VICTOR
IPC: A61G7/057
Filed: 1993-04-01
Abstract: L'invention concerne un lit fluidisé perfectionné, permettant une utilisation simplifiée et assurant une hygiène accrue. Ce lit fluidisé comprend une cuve reposant sur des pieds, une chambre comportant du fluide sous pression, et un diffuseur. Une enveloppe, constituée d'un drap filtrant et d'une substance formant tamis, munie de lests, et comportant une ouverture, est fixée au pourtour de la cuve. Le lit fluidisé selon l'invention est notamment utilisable en milieu hospitalier.
Patent CA-2096838-A1 (CA)
Inventor: ROBINSON STANLEY D
IPC: B21D11/14
Filed: 1991-11-20
Abstract: A drill steel is formed by providing a steel (12) and applying twist to the steel. The twist is applied by locating one end (14) of the steel in a movable first grip (26) and an intermediate portion (16) in a stationary second grip (28) that holds the steel against torsional movement, rotating first grip (26) in order to twist the steel (12) and moving first grip longitudinally away from second grip. Second grip (28) includes means to heat the drill steel.
Patent CA-2097180-A1 (CA)
Title: Saccharification of cellulose by cloning and amplification of the .beta.-glucosidase gene of trichoderma reesei
Inventor: FOWLER TIMOTHY
IPC: A23L27/00
Filed: 1991-12-10
Abstract: A process for expressing extracellular .beta.-glucosidase in a filamentous fungus by expressing a fungal DNA sequence encod-ing enhanced, deleted or altered .beta.-glucosidase in a recombinant host microorganism is disclosed. Recombinant fungal cellulase compositions containing enhanced, deleted or altered expression of .beta.-glucosidase is also disclosed.