baber/WOPTO huggingface dataset:
Patent CA-2058182-C (CA)
Inventor: MAHONEY ROBERT D
IPC: B01D69/08
Filed: 1991-12-20
Granted: 2002-04-09
Abstract: The invention relates to a process for preparing a microporous membrane from an unsulfonated poly(etheretherketone)-type polymer by forming a mixture of an unsulfonated poly(etheretherketone)-type polymer, a low melting point crystallizable polymer, and a plasticizer, heating the resulting mixture, extruding or casting the mixture into a membrane, quenching or coagulating the membrane, and leaching the membrane, while optionally drawing the membrane before, during, after leaching, or a combination thereof.
Patent CA-2058509-C (CA)
Inventor: KLERSY PATRICK J
IPC: H03K17/30
Filed: 1991-12-24
Granted: 1995-10-17
Abstract: The first fire voltage of chalcogenide-based switching devices (10) is lowered to a value approximately equal to the threshold voltage by treatment of the chalcogenide material (18) with fluorine either during or after deposition.
Patent CA-2058954-C (CA)
Inventor: TAPIO LANKINEN
IPC: A61M15/00
Filed: 1990-06-13
Granted: 1999-02-16
Abstract: A device for a more effective pulverization of particles and/or agglomerates of a powdered inhalation medicament, comprising a chamber (2) intended for medicament and substantially closed at one end thereof, said chamber being provided with at least one air inlet port and a powdered medicament outlet port. The chamber (2) substantially closed at one end said, chamber being rotationally symmetrical in shape or its cross-section perpendicular to the centre axis thereof being substantially circular in shape and without substantial flow obstacles. The inlet and outlet ports are spaced from each other in the direction of the centre axis of chamber (2). Said inlet port (1) being designed to direct the air inflow into the vortex chamber substantially parallel to the tangent of said chamber.
Patent CA-2062926-C (CA)
Title: Oleophilic molybdenum compound for use in hydroconversion of a hydrocarbon and a method for producing the same
Inventor: KANESHIMA TOKITAKA
IPC: B01J31/18
Filed: 1992-03-12
Granted: 1997-01-14
Abstract: An oleophilic molybdenum compound comprising an ali-phatic amine group and a heteropolyanion group containing at least one molybdenum atom as a polyatom is disclosed.          The oleophilic molybdenum compound is a catalyst precursor capable of being changed, in the hydroconversion reaction system, to a catalyst having excellent catalytic activity in hydroconversion of a hydrocarbon feedstock to a hydro-carbon product having a decreased molecular weight.  The oleophilic molybdenum compound is efficiently produced from an aliphatic amine and a heteropolyacid.
Patent CA-2063108-C (CA)
Title: Apparatus for the production of plastic pipes
Inventor: HEGLER RALPH-PETER
IPC: B29C48/11
Filed: 1992-03-16
Granted: 2002-01-15
Abstract: An apparatus for the manufacturing of plastic pipes has half shells of which two at a time combine as a pair to form a mold. It is provided with a temperature-regulating bell. Supply lines are formed as flexible supply hoses of temperature-resistant plastic material. A line conduit accommodating them is provided with a protecting tube, which accommo-dates the supply hoses and which is provided with a heat insulation towards an injection head.
Patent CA-2064721-C (CA)
Inventor: HOUCHIN JAMES SCOTT
IPC: H04N9/71
Filed: 1991-07-24
Granted: 1997-10-14
Abstract: An apparatus for reading and correcting an image including:  a sensor which receives light and converts it to electrical signals; a digitizing unit to convert the analog image signal to a digital signal; a calibration unit to capture calibration data for each pixel under known illumination conditions and to produce individual correction values for each pixel and a correction unit comprised of a look-up table addressed by both the digital image signal and the correction values which corrects the digital image data.
Patent CA-2064865-C (CA)
Title: Plastic body arrangement for small, light vehicles
Inventor: RINGDAL JAN OTTO
IPC: B62D25/00
Filed: 1990-08-03
Granted: 2001-02-20
Abstract: A method for the manufacture of plastic car bodies, preferably moulded or cast in one piece, with openings for doors and windows, includes the step of forming recesses from the outside to the inside terminating inside in an approximately right angle; at least one opening is cut out by means of a projection from a flange or angle K; moulding is then secured to envelop the plastic portion and is attached to an internal roll-over bracket or frame; on one side of the door opening moulding is secured a door hinge.
Patent CA-2067952-C (CA)
Title: Calcium citrate anticaking agent
Inventor: VIDAL SUSAN
IPC: A23L1/00
Filed: 1992-05-04
Granted: 2005-12-27
Abstract: A new and useful calcium salt of citric acid is prepared and is used as an anticaking agent in furctose-sweetened powdered soft drinks. Also included are the processes for preparing the new calcium salt and powdered beverage mixes containing the new salt.
Patent CA-2068855-C (CA)
Title: Longitudinal welding apparatus in a packaging machine
Inventor: BALLESTRAZZI ARIS
IPC: B29C65/18
Filed: 1992-05-15
Granted: 2001-12-11
Abstract: A longitudinal welding apparatus in a packaging machine for products fed on a conveyor belt, comprising a rocking circular welder which overlies the superposed longitudinal edges of a continuous plastics film in which the products are wrapped, the rocking circular welder consisting of at least two independently powered, separate semicircular welding elements, the welder being rotatable to position one of its welding elements on the superposed edges of the film, sensors being provided to measure the speed of advancement of the film and to control, via an electronic control device, both the rotation of the welder and the variation in the feed voltage of at least one of the welding elements.
Patent CA-2074679-C (CA)
Title: Prebrushing pyrophosphate-containing liquid oral compositions
Inventor: TRICCA ROBERT E
IPC: A61K8/23
Filed: 1992-07-27
Granted: 1998-09-15
Abstract: A liquid oral prebrushing composition for loosening and removing  plaque  present  on  dental  surfaces  comprises dialkali  metal  pyrophosphate salts,  tetraalkali  metal pyrophosphate  salts  or  mixtures  thereof,  together  with sodium lauryl sulfate in amounts effective for removal of plaque when the composition is applied to dental surfaces.
Patent CA-2078552-C (CA)
Title: Butadiene monoepoxide/maleic anhydride copolymers
Inventor: BLEVINS RICHARD W
IPC: C08G59/32
Filed: 1991-03-14
Granted: 1997-07-08
Abstract: Copolymers are produced when 3,4-epoxy-1-butene (EpB) is copolymerized with maleic anhydride. The copolymerization is initiated by free radicals, and comprises both 1,2-propagation and 1,5-propagation of EpB. When an ether is used as the reaction solvent, the product is soluble, and essentially composed of (a) a monomer derived from maleic anhydride, and (b) two monomers derived from EpB. When the reaction solvent is a ketone, the polymer product is also soluble, and additionally contains (c) a moiety derived from a dioxolane formed in situ. When the reaction is conducted in the presence of a non polar (e.g., hydrocarbon or a halocarbon) solvent or neat (i.e., in the absence of a solvent), the polymer product is insoluble in common organic solvents and contains (d) a symmetrical EpB dimer. This dimer apparently does not form, or is formed to only a very slight extent, when the polymerization is conducted in polar reaction solvents. Polymer products with a dioxolane moiety can be made by using preformed dioxolane in the polymerization mixture. Thus, this invention is not limited to in situ preparation of the dioxolane from a reaction mixture containing a ketone. Products of this invention can be cast as clear films and can also be used as reactive polymers.
Patent CA-2080620-C (CA)
Title: Enhancements of current carrying rolls, especially in electrolysis lines
Inventor: JACQUES CLAUDE
IPC: F16C13/00
Filed: 1992-10-15
Granted: 2002-07-23
Abstract: A current-conducting roller comprising a middle part forming the active main part (210) of the roller and two journals (220) extending the middle part, at each of the ends of the latter respectively, each of the journals (220) comprising a steel body (240) provided with an internal copper liner (250), itself provided with an internal protective sheath (260), characterised in that the internal copper liner (250) is placed in a blind bore (246) of the steel body (240) and that a compressible seal (270) is provided, inserted between the bottom (247) of the blind bore (246) and the corresponding end of the internal copper liner (250). 
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Patent CA-2085593-C (CA)
Inventor: GOODMAN WILLIAM HARRY JR
IPC: A61F13/49
Filed: 1991-06-10
Granted: 1995-08-01
Abstract: A soft, silky, cloth-like polymeric web exhibiting either patterns of microapertured or microbubbled surface aberrations, said webs further including a containing visually discernible pattern which imparts an embossed appearance to at least one surface thereof. Such polymeric webs may be either fluid-pervious or fluid-impervious, as desired, depending upon the particular end use. In a particularly preferred embodiment, the visually discernible pattern comprises a regularly repeating pattern which imparts an improved aesthetic appearance to the webs. Method and apparatus for producing such polymeric webs are also disclosed.
Patent CA-2097741-C (CA)
Title: Utility vehicle cargo box tailgate latch and support
Inventor: FRIESEN HENRY
IPC: B62D33/027
Filed: 1993-06-04
Granted: 1996-07-30
Abstract: A tailgate for a utility hauling vehicle is alternatively held in either a closed position or a supported position by a pair of formed rods which are located at the opposite ends of the tailgate.  When the rods are in latched positions, they are slightly flexed so as to create a bias which acts between the rods and the tailgate to maintain a rattle-free connection.
Patent CA-2101041-C (CA)
Title: Control process for solids content of titanium dioxide filter cake
Inventor: BLUEMEL SIEGFRIED
IPC: C09C1/36
Filed: 1993-07-21
Granted: 1999-12-21
Abstract: In the preparation of a suspension with a high content of titanium dioxide, which has been produced according to the chloride process, a finely divided titanium dioxide is slurried, in unflocculated condition without use of a dispersing agent, dechlorinated and then filtered. The content of multivalent anions can be controlled in the slurry before the filtration through suitable dechlorinating agents, particularly hydrogen peroxide and/or sodium hydrogen sulfite, and thereby the solid content in the filter cake and the consistency of the filter cake are advantageously influenced. If, on one hand, no or only few multivalent anions are present, a thixotropic filter cake with a high solids content is obtained in a pressure filtration. The filter cake is converted into a titanium dioxide suspension with a high solids content through feeding into a titanium dioxide suspension to which a dispersing agent has been added. If, on the other hand, a rigid filter cake is desired by, for example, a vacuum filtration, a minimum quantity of multivalent anions is necessary for the formation of the rigid filter cake. The solids content is, however, lowered in comparison to the thixotropic filter pastes. Where this minimum quantity of multivalent anions is exceeded, the solids content declines further. The rigid filter cakes can be rendered flowable through the direct admixing of dispersing agent. Hydrogen peroxide is particularly preferred as a dechlorinating agent.
Patent CA-2101399-C (CA)
Title: Self-crosslinking resin
Inventor: YUKAWA YOSHIYUKI
IPC: C08G18/72
Filed: 1993-07-27
Granted: 1997-12-16
Abstract: The present invention provides:          (1) a self-crosslinking resin (I) having a blocked isocyanate group and a hydroxyl group in the molecule and characterized in that the resin is prepared from a vinyl polymer (A) having at least two free isocyanate groups in the molecule and a polyester resin (B) having at least two hydroxyl groups in the molecule by reacting some of the hydroxyl groups of the resin (B) with some of the free isocyanate groups of the polymer (A), and subsequently reacting a blocking agent with all the remaining free isocyanate groups, and (2) a self-crosslinking resin (II) having a blocked isocyanate group and a hydroxyl group in the molecule and characterized in that the resin is prepared from a vinyl polymer (C) having a free isocyanate group and a blocked isocyanate group in the molecule and the polyester resin (B) having at least two hydroxyl groups in the molecule by reacting some of the hydroxyl groups of the resin (B) with all the free isocyanate groups of the polymer (C).
Patent CA-2104343-C (CA)
Inventor: CLIFFE BARRY J
IPC: B62D53/08
Filed: 1993-08-18
Granted: 1999-03-16
Abstract: A novel improved fifth wheel structure is provided of the type including a fifth wheel plate having an upper bearing face and a rearwardly opening slot having a closed forward end for use in conjunction with a kingpin plate of the type including a lower bearing face from which a kingpin projects downwardly, the fifth wheel plate being adapted to have the kingpin plate disposed thereover with the respective bearing faces in contact with each other and with the kingpin rotatingly and captively disposed in the forward end of the slot. The improvement comprises a plurality, e.g., preferably three, four or five, self-lubricating slip pads, each such slip pad being formed of self-lubricating plastic polytetrafluoroethylene or ultra-high molecular weight polyethylene. Each slip pad is substantially rectangular in shape with four rounded corners and has only its peripheral edges tapered or rounded to be lower than its central region. Each slip pad has a plurality of circular counterbored holes therein, each circular counterbored holes terminating in a circular hole. Each slip pad is secured into its respective rectangular recess within the upper bearing face of the fifth wheel plate, by means of an associated one of a plurality of weld washers, each of which has been placed in its respective circular counterbored hole in its associated slip plate and then welded to the fifth wheel plate.
Patent CA-2110238-C (CA)
Inventor: PERU GILLES
IPC: B23K37/04
Filed: 1993-11-29
Granted: 1998-06-16
Abstract: The subject of the invention is a device for positioning sheet-metal plates (2, 3) in an installation for continuously butt-welding the said sheet-metal plates (2, 3) by means of a laser beam. The device comprises, on the one hand, a transfer table formed by an alternation of ball-type rails (11) and of strips (12) provided with uniformly spaced-apart projecting studs (13) and, on the other hand, friction members (15) intended to bear on the upper face of the sheet-metal plates (2, 3) and to impart to the said sheet-metal plates a translational movement substantially perpendicular to the direction of travel of the sheet-metal plates (2, 3). <IMAGE>
Patent CA-2113870-C (CA)
Inventor: RIESBERG JAMES J
IPC: E04B5/12
Filed: 1994-01-20
Granted: 1997-12-30
Abstract: A system to join two substantially perpendicular members tightly together.  This system finds particular application where it is desired to secure a subfloor to an underlying joist to eliminate  squeaking and  to rectify  a  "spongy"  floor  through reinforcement.  The system comprises a brace and a pair of screws of different lengths.   The brace includes a pair of working surfaces that meet to form a ninety-degree corner.   A flange extends from one of the working surfaces for placement between the top side of the joist and the bottom side of the subfloor.  The brace has a pair of parallel pilot holes defined therein for receiving the two screws.  The pilot holes are disposed at about a thirty-degree angle relative the joist-mating working surface.
Patent CA-2120022-C (CA)
Title: Air treatment plant for foodstuff with conveyor belt periodically driven in opposite direction to the troughfeed direction
Inventor: ROTHSTEIN SVEN-OLLE
IPC: A23L3/00
Filed: 1992-10-02
Granted: 2003-01-14
Abstract: An air treatment plant, e.g. a freezing plant for foodstuffs, comprises a housing (1), an elongate trough (12) provided there-in for receiving the foodstuff to be treated, a heat exchanger (13), and a fan assembly (14) for producing an air flow circulating through the heat exchanger, up through the trough and back to the heat exchanger. The bottom of the trough comprises a forami-nated conveyor belt (16). The conveyor belt (16) is driven by an electric motor having a control unit for at least periodically driv-ing the conveyor belt in a direction opposite to the throughfeed direction of the foodstuff in the trough (12).
Patent CA-2126135-C (CA)
Title: Use of human protein c for prevention and treatment of depositions of thrombocytes
Inventor: EIBL JOHANN
IPC: A61K38/00
Filed: 1994-06-17
Granted: 2002-02-19
Abstract: The use of human Protein C for the prevention and treatment of deposition or aggregation of thrombocytes, microparticles of thrombocytes, and leucocytes is described. In addition, an improved method for the extra-corpereal treatment of body fluids is disclosed.
Patent CA-2126689-C (CA)
Inventor: LANDMEIER WALDO L
IPC: G06F3/0488
Filed: 1992-12-21
Granted: 1996-09-17
Abstract: In an electromagnetic digitizer tablet (14) having a grid of receptor wires (30) disposed below a working surface over which a cursor (12) emanating a magnetic field detected by the receptor wires is moved, this invention is an improvement to reduce elec-trostatically-caused jitters in data from the receptor wires (30). A grounded electrically conductive shield (40) disposed between the grid of receptor wires and the working surface (54). The grounded electrically conductive shield (40) is of a material and thick-ness to pass the magnetic field without substantial attenuation while conducting any electrostatic energy forming thereon to ground. Both conductive ink and a very thin metal foil can be used for the shield. The digitizer tablet is also shown embodied in the input/display device of a pen-driven computing system.
Patent CA-2128921-C (CA)
Title: Dishwasher filter arrangement
Inventor: COOPER RANDALL L
IPC: A47L15/42
Filed: 1994-07-27
Granted: 1996-03-19
Abstract: A water circulation system for a dishwasher is provided, and includes a pump housing with a cover mounted in the bottom wall of the washing chamber of the dishwasher.  The cover includes a collection chamber with a strainer portion extending around the outside of the chamber, and a filter element positioned on the inside of the chamber.  A first portion of the wash water passes through the strainer, which removes large food particles from the water, which is then recirculated by a pump in the pump housing back to the washing chamber.  A second portion of wash water is collected in the collection chamber and passes through the filter element to remove food particles therefrom, and then into the pump housing for recirculation by the pump to the washing chamber. The collection chamber includes a drainage outlet for draining collected food particles from the chamber at the end of the wash cycle.  A backwash spray of water is also provided to continuously backwash the filter element during the washing cycle so as to prevent clogging of the element.
Patent CA-2132604-C (CA)
Title: Dispositif d'insertion dynamique de document dans une enveloppe
Inventor: COUDRAY GERARD
IPC: B43M3/04
Filed: 1994-09-21
Granted: 1998-07-14
Abstract: Pour insérer un document (44) dans une enveloppe (43), (a) des moyens d'amenée de document (46) et d'amenée d'enveloppe (45) sont actionnés, ainsi qu'un dispositif (11, 12, 16) d'acheminement de document entre le poste de réception de document et le poste de réception d'enveloppe, (b) l'ensemble rotatif (32, 32') tourne de la position de réception d'enveloppe à la position d'éjection d'enveloppe, alors que le dispositif d'acheminement (11, 12, 16) continue d'être actionné, (c) l'ensemble rotatif étant dans la position d'éjection d'enveloppe, les moyens d'enlèvement (47, 47') d'enveloppe sont actionnés, (d) l'ensemble rotatif (32, 32') est ramené à la position de réception d'enveloppe.
Patent CA-2133315-C (CA)
Title: Full metal jacket hollow point bullet
Inventor: SCHLUCKEBIER DAVID K
IPC: F42B12/80
Filed: 1993-03-15
Granted: 2003-07-01
Abstract: A full metal jacket hollow point bullet (110) is disclosed which has a portion of the jacket (120) extending within the hol-low open front end (116) of the bullet. The portion of the jacket in the hollow front end has a plurality of radial slits and rein-forced pointed prongs (126) therebetween. An empty blind bore (128) extends from the tips of the prongs (126) axially rearwardly into the bullet core (114). The base of each of the prongs is reinforced at the mouth of the front end by a fillet (130). These prongs (126) project generally radially outward upon upset of the bullet in soft tissue after passing through barrier materials such as clo-thing and deer hide. The jacket has a coating of copper oxide (123) on its inner and outer surfaces which bonds the soft lead core to the jacket and minimizes lead wash and lubricates the bullet.
Patent CA-2134743-C (CA)
Title: Ac/dc power supply
Inventor: ADAHAN CARMELI
IPC: G05F1/625
Filed: 1994-10-31
Granted: 2005-09-20
Abstract: An AC/DC power supply is connectable to either AC or DC and includes a power transformer circuit, a rectifier circuit, and a switching circuit having first and second switching devices effective when the voltage input is AC and DC, respectively, to output pulses to the power transformer circuit. A control circuit, when sensing an AC voltage input, enables the rectifier to rectify the voltage input before applied to the power transformer circuit, and also enables the first switching device to output pulses to the power transformer circuit. The control circuit, when sensing a DC voltage input, disables the rectifier and enables the second switching device to output pulses to the power transformer circuit. A duty-cycle control circuit controls both the first and second switching devices to control the duty cycle of the pulses supplied thereby to the power transformer circuit.
Patent CA-2134783-C (CA)
Title: Use of remacemide for the treatment of parkinson's disease
Inventor: JOHNSON PETER
IPC: A61K31/165
Filed: 1993-04-30
Granted: 2002-08-13
Abstract: 2-amino-N-(1,2-Biphenyl-1-methylethyl)acetamide (remacemide) or a pharmaceutically acceptable salt thereof, and L-do-pa, are useful in conjuction with one another in the treatment of Parkinson's disease. Pharmaceutical products and formulations comprising these active agents are provided.
Patent CA-2146973-C (CA)
Inventor: SEGARINI PATRICIA R
IPC: C07K14/71
Filed: 1993-10-29
Granted: 2008-09-02
Abstract: A method of treating TGF-.beta. excess is disclosed. The treatment is parenteral, oral or topical administration of TGF-.beta.  re-ceptor fragment. Particularly effective is a soluble receptor fragment which resembles the extracellular portion of TGF-.beta. binding protein II.
Patent CA-2149689-C (CA)
Title: Orthopaedic brace having a pneumatic pad and associated pump
Inventor: BASTYR CHARLES A
IPC: A61F5/01
Filed: 1995-05-18
Granted: 2006-01-03
Abstract: A hinged orthopedic knee brace has a structural frame made up of a plurality of rigid or stiffened support components dynamically connected by one or more hinges. A plurality of pneumatic pads are attached to the inside faces of the frame to effectively grip the body of the user and simultaneously cushion the body from the frame. Each pad is connected in selective fluid communication with a means for enabling the user to instantaneously inflate or deflate the pads whenever desired to enhance the fit of the brace on the body of the user.