baber/WOPTO huggingface dataset:
Patent CA-2127692-A1 (CA)
Title: Diels-alder process
Inventor: ELLISON ROBERT H
IPC: C07C2/50
Filed: 1993-01-08
Abstract: An improved process for the production of 1:1 molar adducts of 4-vinylcyclohexene and cyclopentadiene, primarily 5-(3-cyclohexen-1-yl)-2-norbornene, comprises contacting 4-vinylcyclohexene and dicyclopentadiene at elevated temperature in a suitable reactor, separating the resulting mixture of adducts into light product comprising predominately the 1:1 polar adduct and a heavy product (bottoms product) comprising higher adducts and cyclopentadiene oligomers, and reacting the heavy pro-duct with additional 4-vinylcyclohexene to produce additional 1:1 molar adducts.
Patent CA-2129731-A1 (CA)
Title: Dispenser for a stack of sheets
Inventor: BODZIAK DOUGLAS P
IPC: B42D5/00
Filed: 1993-02-24
Abstract: A dispenser (20) for a stack (12) of sheets (11) disposed in a stack with each of the sheets (11) having a band of adhesive coated on a portion of its bottom surface adjacent one edge by which the sheet (11) is releasably adhered to the top surface of the adjacent sheet (11) in the stack (12), being stacked with the bands of adhesive of adjacent sheets (11) at alternate opposite sides of the stack (12). The dispenser (20) includes normally generally planar top wall (21) formed by a single layer of resiliently flexible polymeric material and having two opposed portions with a slot therebetween through which the uppermost sheet in the stack (12) can be withdrawn, whereupon the top wall (21) portion adjacent the band of adhesive on the uppermost sheet (11) will flex away from the stack (12) to form a surface adjacent the stack (12) along which the sheet (11) being withdrawn and the end of the second uppermost sheet (11) in the stack (12) to which the band of adhesive on the sheet (11) being withdrawn is adhered can slide, and the top wall (21) portion opposite the band of adhesive on the withdrawn uppermost sheet (11) will place drag on the second uppermost sheet (11) in the stack (12) so that the force applied to withdraw the uppermost sheet (11) will peel the uppermost sheet (11) away from the end of the second uppermost sheet (11) after it is withdrawn through the slot rather than fully withdrawing the second sheet (11) through the slot.
Patent CA-2131999-A1 (CA)
Title: Fast response test panel
Inventor: LAWRENCE PAUL J
IPC: G01N31/22
Filed: 1993-03-10
Abstract: A dry test panel test samples such as undiluted bodily fluid specimens. The panel contains all reagents and components ne-cessary to achieve a visible indication of the presence or absence of a suspect analyze in the sample, and preferred embodiments contain positive and negative controls (36, 37) as well. The device contains an internal chamber (31) into which the specimen is introduced, and which contains all materials necessary for the reactions which produce a color change which is visible on the ou-ter surface of the device. The materials are positioned in the chamber (31) in such a manner that they are activated only when the chamber (31) is filled with the specimen.
Patent CA-2132401-A1 (CA)
Title: Electrical heater for mold of injection-molding machine
Inventor: SCHWARZKOPF EUGEN
IPC: H05B3/18
Filed: 1994-09-19
Abstract: An electrical heater for a mold has an elongated tubu-lar casing made of a ductile metal and deformable by hand, a manually deformable electrical heating element extending longitu-dinally inside the casing, and a manually deformable mass of electrically insulating potting filling the casing around the element. The casing can be annularly corrugated and formed by a succession of like U-section rings each having a pair of parallel legs and a bight portion and a succession of like rounded annular webs interconnecting the rings and each joining a leg of one respective ring with a leg of an adjacent respective ring.
Patent CA-2133162-A1 (CA)
Title: Chemical process for the manufacturing of a construction and furnishing material
Inventor: BURGAND YVES
IPC: C04B26/00
Filed: 1994-09-28
Abstract: A process for the manufacturing of a construction material comprises three steps.  In the first step an alkaline cellulose solution is prepared by adding lime to a suspension of cellulose fibers in water.  After the lime has reacted with the fibers, a trivalent or monovalent metallic salt is added to the alkaline cellulose solution.  The metallic salt reacts with the cellulose solution forming an aqueous paste.  A hydraulic binder is then added to the paste.  A construction material for use as a spreadable, mortarable coating or for the making of blocks and sheets comprises a mixture of a calcium lignocellulosulfoaluminate or a calcium lignocellulocarbonate and a hydraulic binder.
Patent CA-2134548-A1 (CA)
Title: Process and apparatus for catalytic reforming of naphtha
Inventor: BAULD JOHN M
IPC: C10G35/04
Filed: 1993-04-27
Abstract: 2134548 9322404 PCTABScor01 A catalytic naphtha-reforming process and apparatus comprises at least two reactors (18, 22, 25), and the operating temperature of at least the downstream reactor (25) is progressively raised to maintain the quality of the reformate as catalyst activity diminishes due to the deposition of coke thereon. When the maximum operating temperature of at least the downstream reactor (25) is attained, naphtha is diverted therefrom to a substitute reactor (40) containing active reforming catalyst, and naphtha-reforming operation is continued until the operating temperature of at least the substitute reactor (40) has been attained. The naphtha-reforming process is thereupon interrupted and catalyst in all reactors (18, 22, 25, 40) is regenerated. Thereafter, the naphtha-reforming process is restarted employing the original downstream reactor (25) in place of the substitute reactor (40). The regeneration-time is a reduced proportion of the naphtha-reforming time compared to the proportion for prior processes and apparatus.
Patent CA-2139498-A1 (CA)
Title: Laser gyro microprocessor start up control method and apparatus
Inventor: KILLPATRICK JOSEPH E
IPC: H01S5/00
Filed: 1993-08-18
Abstract: A laser gyro start up apparatus and method that safely and quickly starts up a laser gyro. A microprocessor sequences the mechanical and electrical systems of the laser gyro such that the gyro is started up quickly in the proper sequence. The micropro-cessor also executes tests on the gyro and provides a health signal in the timing sequence. The start up apparatus starts the laser block dither, laser discharge and acquires the path length controllers.  Optical start up operations may be performed including the calibration of volts per mode.
Patent CA-2139523-A1 (CA)
Title: Process for the production of high solids latex
Inventor: FRECHE PATRICK A R
IPC: C08F285/00
Filed: 1995-01-04
Abstract: By utilizing the process of this invention latices having solids contents of greater than 40 percent can be prepared with minimal microcoagulum formation.  These latices can be used in making paint formulations which have improved storage stability. This invention more specifically discloses a process for preparing a latex having a high solids content which comprises the steps of (1) terpolymerizing a vinyl aromatic monomer, an alkyl propenoic acid ester, and an alkyl propenoic acid monomer in an aqueous polymerization medium by free radical polymerization in a first polymerization step to produce a seed polymer latex; (2) neutralizing the seed polymer latex to a pH of about 7 to about 10 by the addition of an alkali to produce a neutralized seed polymer latex; (3) adding additional vinyl aromatic monomer and alkyl propenoic acid ester to the neutralized seed polymer latex and allowing the additional vinyl aromatic monomer and the additional alkyl propenoic acid ester to polymerize in a second polymerization step to a solids content of at least about 40% to produce the latex having the high solids content; wherein about 20 percent to about 40 percent of the total amount of monomers polymerized in the first polymerization step and the second polymerization step are polymerized in the first polymerization step; and wherein the additional vinyl aromatic monomer and the additional alkyl propenoic acid ester are added in the second polymerization step at rate whereby a monomer conversion of at least 85 percent is maintained at all times.
Patent CA-2139712-A1 (CA)
Title: Cable ties
Inventor: WOODS DEREK
IPC: B65D63/10
Filed: 1995-01-06
Abstract: A cable tie comprises a head and a strap of plastic material. The head has a transverse aperture formed therethrough and contains a separately formed barb. The barb has a head engaging portion and a strap engaging portion extending at least partly across the head aperture. The barb includes a flexure region comprising a pair of opposed cut-out portions each located in a edge of the barb to provide a section of reduced width between the cut-out portions. Each cut-out portion provides a shoulder at the side thereof such that after insertion of the barb into the head the plastic material of the head flows over the shoulders of the cut-out portions to anchor the barb in the head.
Patent CA-2139929-A1 (CA)
Title: Transdermal therapeutic system containing the active substance 17-.beta.-oestradiol (anhydrous)
Inventor: HORSTMANN MICHAEL
IPC: C09J7/02
Filed: 1993-07-07
Abstract: This invention relates to a transdermal therapeutic system containing the active substance 17-.beta.-estradiol and optionally further active substances having a laminated structure positioned on a backing layer which is essentially impermeable to active substance and moisture, one or more matrix layers and optionally an adhesive layer, characterized in that at least one of the matrix layers or the adhesive layer contains anhydrous 17-.beta.-estradiol in crystalline form.
Patent CA-2140131-A1 (CA)
Inventor: PHILLIPS BOBBY M
IPC: A61F13/15
Filed: 1993-07-06
Abstract: This invention relates to spinnerets having orifices of unique cross-sections, the spinnerets being useful for extruding therethrough filaments having "U" and "E" shaped cross-sections with stabilizing legs. The use of strategically placed stabilizing legs allow the filaments to maintain the desired shape. The "U" shaped filament cross-section provides improved drainage over previous filament cross-sections.
Patent CA-2140376-A1 (CA)
Title: Process for preparing ceramic products
Inventor: WU XIANLIANG
IPC: C04B35/10
Filed: 1995-01-17
Abstract: A method for improving the properties of ceramic green bodies is provided. In particular, ceramic green bodies having improved green strength are provided. Incorporating certain acid-containing polymers as binders at a level of at least about 1 to about 15, preferably at least about 3 to about 10 percent by weight based on the weight of ceramic particles improves the green strength of the resulting ceramic green bodies.
Patent CA-2141017-A1 (CA)
Inventor: ADEL JOERG
IPC: G03G9/113
Filed: 1995-01-24
Abstract: Carriers for electrophotography, based on magnetic cores coated with metal oxide and with metal or magnetite, and their prepara-tion and their use for electrophotographic two-component devel-opers.
Patent CA-2142059-A1 (CA)
Title: Window shade with break-away attachment of lift cords to bottom rail
Inventor: GENOVA JOHN R
IPC: E06B9/262
Filed: 1995-02-08
Abstract: A window shade assembly comprising a header, a bottom rail and expansible and contractable shade means attached to the header and bottom rail, and lift cords attached to the bottom rail and extending upwardly to the header and through a cord lock on the header and having lift cord operating portions extending downwardly from the cord lock means for raising and lowering the bottom rail, the lower ends of the operating portions of the lift cords are detachably mounted on the bottom rail to be raised and lowered with the bottom rail to reduce cord dangle and the detachable mounting is arranged to allow the lower end of the operating portion of each lift cord to detach from the bottom rail and separate from the operating portions of the other lift cords when the lower end of the lift cord is subjected to a tensile force in a direction away from the bottom rail, for child safety reasons.
Patent CA-2144133-A1 (CA)
Title: Monomers derived from perhalogenated sultones and polymers produced from said monomers
Inventor: ARMAND MICHEL
IPC: H01M10/052
Filed: 1995-03-07
Abstract: The invention concerns monomers derived from perhalogenated sultones, their preparation process, and the polymers obtained from said monomers and their uses for the production of ionic conduction materials.  The monomers are compounds responding to the formula A-CFX-SO2Z in which A represents a R1R2N-SO2-CFX- group; Z represents F, Cl, -OSi(CH3)3 or an ionic grouping; X represents F, C1, H or RF; at least one of the radicals R1 and R2 are selected among the organic, non-perfluorated polymerisable radicals; RF is selected among the perfluoroalkyl radicals and the perfluoroaryl radicals.  The polymers obtained from these monomers are useful for the production of ionic conduction materials.
Patent CA-2146426-A1 (CA)
Inventor: VON SACKEN ULRICH
IPC: H01M4/58
Filed: 1995-04-05
Abstract: Carbonaceous insertion compounds and methods f or preparation are described wherein the compounds comprise a highly disordered, impurity free, hard pre-graphitic carbonaceous host. Carbonaceous insertion compounds can be prepared which have large reversible capacity for lithium yet low irreversible capacity and voltage hysteresis. Such insertion compounds can be prepared by simple pyrolysis of suitable phenolic resin precursors at an appropriate temperature. These insertion compounds may be suitable for use as high capacity anodes in lithium ion batteries.
Patent CA-2146501-A1 (CA)
Title: Formed wire mattress assembly
Inventor: KITCHEN JOHN P
IPC: A47C27/06
Filed: 1995-04-06
Abstract: A formed wire spring assembly having upper and lower spaced decks including a border wire and a plurality of deck wires arranged in a criss-cross fashion. The deck wires of the upper deck and lower decks are paired with one another and are connected by springs disposed between the two decks to support the decks in spaced relationship and yieldable fashion relative to one another.
Patent CA-2147272-A1 (CA)
Inventor: OWEN ALBERT J
IPC: A61K38/39
Filed: 1993-10-15
Abstract: There is provided a water-in-oil (w/o) microemulsion which readily converts to an oil-in-water (o/w) emulsion by the addition of aqueous fluid to the w/o microemulsion, whereby any water-soluble biologically-active material in the aqueous phase is released for absorption by the body. The w/o microemulsion contains a preferred high purity short chain monoglyceride surfactant. The w/o microemulsion is particularly useful for storing proteins and the like for long periods of time at room temperature and above until they are ready for use, at which time the addition of aqueous fluid converts the microemulsion to an o/w emulsion and releases the protein.
Patent CA-2147402-A1 (CA)
Title: System and method for simultaneously compensating chromatic dispersion and self phase modulation in optical fibers
Inventor: PARK YONG-KWAN
IPC: H04B10/588
Filed: 1995-04-20
Abstract: At least one dispersion compensating fiber (DCF) is utilized to compensate for chromatic dispersion of an externally modulated signal carried by at least one single mode, standard fiber optic cable.  The self phase modulation (SPM) effect in the standard fiber is characterized by a pulse compression and associated pulse distortion when a 1550  nm wavelength signal  is  launched into  the  fiber. Because the SPM effect in the DCF fiber is characterized by a pulse broadening for the same signal, the DCF fiber is also utilized to compensate for the SPM effect  in the standard fiber.  To this end, the signal power launched into the DCF fiber is controlled such that precise compensation for the SPM effect in the standard fiber can be achieved. Control of the launching power is needed because the mode field diameter of the DCF fiber is smaller than that of the standard single mode fiber so that the DCF fiber experiences the  SPM effect at a lower power than the single mode fiber.
Patent CA-2149983-A1 (CA)
Inventor: BARR BRUCE THOMAS
IPC: G03B27/04
Filed: 1995-05-23
Abstract: A contact printer for printing negatives in rows and columns directly onto photographic paper comprises a flat smooth base plate having a pair of upstanding pins adjacent one side edge. The pins are mounted in slots so as to be adjustable longitudinally of the side edge both in spacing and in distance from the bottom edge. The negatives are placed in rows and columns within an archival preserver sleeve which has holes along one side edge engaged over the pins to locate the sleeve and therefore the negatives on the base plate. Photographic paper is inserted under the sleeve and is located on the base plate by engagement with the pins and by alignment of the bottom edge of the paper with the bottom edge of the base plate. This ensures that the negatives are properly aligned with the paper. A transparent cover plate is also provided to press the negatives onto the paper for exposure of the paper by light directed through the transparent cover plate. Each of the pins has a phosphorescent light source and a similar phosphorescent light source is provided adjacent opposed corners of the plate so that the four corners are visually located in the dark room.
Patent CA-2151684-A1 (CA)
Title: System for switching power and scrubbing for faults
Inventor: ALDRIDGE DAVID L
IPC: G01R31/40
Filed: 1995-06-13
Abstract: A power switching circuit module includes two power rails coupling independent power supplies to the input of a DC controller and test circuits to detect latent faults in power mixing devices included in the circuit.
Patent CA-2152376-A1 (CA)
Title: Combination lock for bags, cases and similar articles
Inventor: KLEIN HELMUT
IPC: E05B37/12
Filed: 1994-10-17
Abstract: The invention concerns a combination lock (1) for bags, cases, etc., the lock having several combination wheels (12) for setting the key combination which permits the lock to be opened, locking wheels (11) working in conjunction with the combination wheels and a bar (17) which is biased by a spring in the direction of closure of the lock. Each locking wheel (11) has a cut-out section (36) which makes it possible to move the bar (17) when the correct key combination is set on the wheels. The invention proposes that individually mounted force-transmission levers (32) are disposed between the locking wheels (11) and the bar (17), the levers making contact at one end with the locking wheels (11) and having at the other end a slot (31) which engages with a pin (30) on the bar.
Patent CA-2153035-A1 (CA)
Title: Postforming decorative laminates
Inventor: KNOX DAVID E
IPC: B32B29/00
Filed: 1995-06-29
Abstract: Improvements in the construction of postformable laminates are disclosed by the provision of a single high basis weight sheet  exhibiting  improved  saturation  and  resin  pick  up characteristics and formed predominantly of hardwood pulp which pulp has been mechanically treated to effectively impart kinking and curling to the individual pulp fibers.
Patent CA-2159067-A1 (CA)
Title: Process for the fabrication de 1,1,1-trihaloethanes
Inventor: BALTHASART DOMINIQUE
IPC: C07C19/10
Filed: 1995-09-25
Abstract: Mfr. of 1,1,1-trifluoroethane (HFC 143a) jointly with 1,1-dichloro-1-fluoroethane (HCFC-141b) and/or 1 chloro-1,1-difluoroethane (HCFC-142b) using liq. phase reaction of HF with vinylidene fluoride and at least one chlorinated cpd. chosen from vinylidene chloride and 1,1,1-trichloroethane.
Patent CA-2161160-A1 (CA)
Title: Fabrication Including Sol-Gel Float Processing
Inventor: CHANDROSS EDWIN ARTHUR
IPC: C01B13/32
Filed: 1995-10-23
Abstract: Cracking in thin sheets of sol-gel-produced material is avoided by use of a support liquid during gelation and drying. Silica glass, as well as other glass and ceramic bodies, is contemplated.
Patent CA-2162104-A1 (CA)
Title: Method for thermal adhesion of acrylic plastic parts
Inventor: THEIL ALEXANDER
IPC: B32B27/30
Filed: 1995-11-03
Abstract: The invention relates to a method for the production of flat laminates (5) from polymethacrylate plastic, by thermal adhesion of at least two parts (1) of polymethacrylate plastic heated at their surface, with the characterizing features that the parts (1) of polymethacrylate plastic, which have been preheated to surface temperatures of 130 to 200°C on the adhesion side (1a), and which maintain their original shape during the preheating phase, are pressed together between a pair of rollers (2, 3), of which at least one roller (2) [sic], by means of which the pressure force (4) is exerted, is mounted in movable manner, at a feed velocity being between and 200 mm/s and a pressure force acting on the roller (3) between 10 and 500 N. Preferably, during the adhesion of the laminates (5), flat or oblong objects (8) with thicknesses which are allowed to amount to a maximum of 50% of the thickness of the parts (1) of polymethacrylate plastic, are embedded between the parts (1) of polymethacrylate plastic which are to be adhered together.
Patent CA-2167915-A1 (CA)
Title: A light emitting device
Inventor: MAZIES TIMOTHY J
IPC: F21V7/09
Filed: 1994-05-24
Abstract: A light emitting device includes a reflector assembly combined with a chassis. A light source is coupled to the reflector assembly. A reflective surface is formed on the reflector assembly to reflect light generated by the light source. A transparent cover is mated to the chassis enclosing the reflector assembly and the light source.
Patent CA-2168349-A1 (CA)
Title: Intracellular immunization
Inventor: DUAN LINGXUN
IPC: A61K48/00
Filed: 1994-07-28
Abstract: A method for conducting gene therapy is provided. The therapy involves using a recombinant gene that encodes an antibody that birds an antigen associated with a disease. The invention is in particular useful in providing cells with "immunity" against intracellular pathogens. Novel vectors and cell lines also are provided.
Patent CA-2169346-A1 (CA)
Title: System method for dispersing pigment in cement based compositions
Inventor: JOHANSEN CHARLES J JR
IPC: C04B20/00
Filed: 1996-02-12
Abstract: A system and method for dispersing pigment in cement based compositions comprising a predetermined and prepackaged amount of a cement based component and a predetermined  and  prepackaged  amount  of  an  aqueous dispersion of a pigment containing component.
Patent CA-2170248-A1 (CA)
Inventor: LOUCKS BRYAN E
IPC: G02B27/10
Filed: 1994-08-19
Abstract: Des panneaux d'affichage à cristaux liquides sont montés sur un prisme mélangeur de faisceaux de façon que chaque panneau d'affichage puisse se plier dans le plan du panneau d'affichage sous l'effet de contraintes thermiques. Une structure de support à trois points d'attache, pour chaque panneau d'affichage, est fixée entre le prisme et les panneaux d'affichage.
Patent CA-2170572-A1 (CA)
Title: A method for manufacturing an absorbent composite in a sanitary product, and an absorbent composite manufactured with the method
Inventor: HELYNRANTA PEKKA
IPC: D06M101/16
Filed: 1996-02-28
Abstract: The  present   invention  relates   to   a  method   for manufacturing an absorbent composite in a sanitary product and to an absorbent composite  in a sanitary product, manufactured by means of the method.  In the method, at least one liquid absorbing layer (14) is formed by means of  the  dry  forming  technique,  which  absorbing  layer comprises natural fibres, such as wood fibres, or natural fibres and plastic fibres mixed with one another,  and superabsorbent material (15), and which is bound by means of heat. According to the invention, at least one material layer  (13)  is dry formed on the absorbing layer  (14), before the absorbing layer is bound by means of heat, from fibres crimping in connection with the binding taking place by means of heat.