baber/WOPTO huggingface dataset:
Patent CA-2072109-C (CA)
Inventor: BENSON SIDNEY W
IPC: B01J27/10
Filed: 1990-10-26
Granted: 2000-08-22
Abstract: Procédé pour la production à fort rendement de Cl2 à partir de HCl gazeux, au moyen d'un catalyseur (1) comprenant un oxyde métallique de transition, un chlorure métallique alcalin et, accessioirement, un chlorure de terre rare trivalent, qui agit de manière productive à des températures modérées et sans que le catalyseur (10) s'évapore. Le procédé comprend deux phases:1) une phase de chloruration dans laquelle le HCl est mis en contact avec le catalyseur (1) à une température élevée, transformant l'oxyde métallique de transition en un chlorure métallique de transition avec élimination d'eau; et (2) une phase d'oxydation dans laquelle le chlorure métallique de transition produit dans la première phase est mis en contact avec une source d'oxygène à une température d'un moins environ 300 °C mais cependant inférieure à 400 °C et suffisamment élevée pour que le Cl2 se dégage et que le chlorurre métallique de transition se retransforme en oxyde métallique de transition. La température de la phase d'oxydation est supérieure à celle de la phase de chloruration. Préférablement, l'oxyde métallique de transition est du MnO2, dans ce cas le MnO2 se transforme en MnCl2 lors de la première phase avec l'émission du Cl2. L'oxyde métallique de transition peut également être du Co2O3, Co3O4, Cr2O3, MiO, Mi2O3, Mo2O3 ou du CuO.
Patent CA-2073568-C (CA)
Title: Purification of solutions
Inventor: ELDER GEORGE RICHARD
IPC: C02F1/42
Filed: 1992-07-10
Granted: 2000-05-30
Abstract: A method for the removal of pollutant ions from an aqueous solution in which they are contained, which method comprises the steps of:         i)       contacting the solution to be treated with particles of a composite magnetic resin which comprises magnetic particles embedded in an organic polymeric matrix which either contains, or has attached thereto sites which are selective for the pollutant ions in the presence of other ions it is not desired to remove; ii)      separating by magnetic filtration the composite magnetic resin particles from the solution; iii)     subjecting the separated composite magnetic resin particles, to regeneration using an appropriate regenerant solution; iv)  separating the regenerated composite magnetic resin particles from the regenerant solution; and v)       recycling the separated composite magnetic resin particles to step (i) of the method.
Patent CA-2074768-C (CA)
Inventor: ASSENT HANS CLAUS
IPC: D04H5/08
Filed: 1992-07-28
Granted: 2000-01-25
Abstract: ABSTRACT      A fleece laminate includes a filler fleece and a thread reinforced fleece and has a total thickness of more than 2 mm.  The filler fleece has a low specific volume, a raw density of below 0.025 g/cm3 and a thickness of 1.6 to 60 mm.  The thread reinforced fleece is composed of 10 to 60 g/m2 fleece material having a raw density above 0.035 g/cm3 and 3 to 100 g/m2 of a thread reinforcement.  The laminate has a high strength in the warp direction.  A fleece laminate of large volume is achieved without the reduction in volume and high density observed in conventional reinforced filler fleeces.
Patent CA-2077274-C (CA)
Title: Method and apparatus for summarizing a document without document image decoding
Inventor: WITHGOTT M MARGARET
IPC: G06V30/262
Filed: 1992-09-01
Granted: 1997-07-15
Abstract: A method and apparatus for excerpting and summarizing an undecoded document image, without first converting the document image to optical character codes such as ASCII  text,  identifies  significant  words,  phrases  and graphics in the document image using automatic or interactive morphological image recognition techniques, document summaries or indices are produced based on the identified significant portions of the document image.  The disclosed method is particularly adept for improvement of reading machines for the blind.
Patent CA-2082970-C (CA)
Inventor: LESHIK RICHARD ROBERT
IPC: A23L9/10
Filed: 1992-11-16
Granted: 2004-08-17
Abstract: Polyphosphates such as tetrasodium polyphosphate and sodium acid polyphosphate are used to reduce the amount of protein aggregation which results from heat treating a ready-to-eat pudding formulation at temperatures in excess of 265°F.
Patent CA-2089319-C (CA)
Inventor: BAER AUSTIN R
IPC: E05D1/04
Filed: 1993-02-11
Granted: 1996-06-11
Abstract: A gear hinge has a bearing fitted into opposed notches which open out of the meshed gear segments for the leaves.  The bearing has blocks provided with knuckles which interlock to prevent the blocks, and the leaves as well, from moving longitudinally with respect to each other.
Patent CA-2091130-C (CA)
Inventor: SCHNEIDER SCOTT W
IPC: F16J3/02
Filed: 1993-03-05
Granted: 1999-01-05
Abstract: The invention provides a pressure relief device for  aerosol  containers  that  may be  subject  to  high internal pressures. The pressure relief device is a small plug formed of a rubber material. The plug has first and second bores extending inwardly from each end and defining between them a thin integral diaphragm separating the bores.  A groove  extends  circumferentially  around  the device, and one end of the device is tapered so that it can be forced into a hole in the bottom of an aerosol container. The area and thickness of the diaphragm can be varied to control the pressure at which the diaphragm will rupture to relieve excess pressures in the container. The rupturable diaphragm is protected from damage during the insertion process, and when the container is on store shelves, by being located near the center of the device, protected by the bores on each side of the diaphragm.
Patent CA-2092104-C (CA)
Title: Rubber modified styrenic resin composition
Inventor: ANDO TOSHIHIKO
IPC: C08L25/04
Filed: 1993-03-22
Granted: 1999-11-30
Abstract: A rubber modified styrenic resin composition is here disclosed which can be obtained by dispersing rubber-like polymer particles in a homopolymer or a copolymer of a styrenic monomer, said rubber modified styrenic resin composition being characterized in that: (a) a volume-average particle size of the rubber-like polymer particles is in the range of from 0.2 to 0.8 (b) a particle size distribution curve on the basis of the volume of the rubber-like polymer particles has one peak, (c) a ratio of a 5% value to a 95% value of the cumulative distribution of the particle size on the basis of the volume of the rubber-like polymer particles is in the range of from 8 to 45, (d) the rubber-like polymer which is a formation material of the rubber-like polymer particles comprises (i) a styrene-butadiene block copolymer (I) having a 5% by weight styrene solution viscosity of 20-50 centipoise and a styrene content of 25-50% by weight, and (ii) (1) a styrene-butadiene block copolymer (II) having a 5% by weight styrene solution viscosity of 20-50 centipoise and a styrene content of 5-20% by weight (a weight ratio of the styrene-butadiene block copolymer (I) to the styrene-butadiene block copolymer (II) is from 95/5 to 40/60), (2) a polybutadiene (III) having a 5% weight styrene solution viscosity of 20-100 centipoise (a weight ratio of the styrene-butadiene block copolymer (I) to the polybutadiene (III) is from 95/5 to 40/60), or (3) a styrene-butadiene block copolymer (IV) having a 5% by weight styrene solution viscosity of 20-50 centipoise and a styrene content of 5-20% by weight, and a polybutadiene (V) having a 50 weight styrene solution viscosity of 30-90 centipoise (a weight ratio (I)/(IV) of (I) to (IV) is 95/5 to 40/60, and a weight ratio [(I) + (IV)]/(V) of the sum of (I) and (IV) to (V) is from 99/1 to 70/30.
Patent CA-2094452-C (CA)
Inventor: HASSELBERG STEPHEN CARL
IPC: G01N33/72
Filed: 1993-04-20
Granted: 2003-08-05
Abstract: A colorimetric assay for the determination of conjugated or unconjugated bilirubin in biological fluids can be carried out with an improved analytical element. The element comprises a support having thereon a gelatin-free mordant layer comprising a positively-charged interactive mordant having at least one binding site for bilirubin, a radiation-blocking layer, and a porous spreading layer. The interactive mordant is dispersed in a binder material of crosslinkable copolymers which include a monomer capable of reaction with a crosslinking agent to crosslink the copolymer.
Patent CA-2098578-C (CA)
Title: Antenna pattern selection for optimized communications and avoidance of people
Inventor: CHANG HUNGKUN J
IPC: H04B7/00
Filed: 1991-10-16
Granted: 1997-02-18
Abstract: An antenna selection technique is used in an RF communication system in which user modules (UM1-UM5) communicate with at least one node (N1-N2). The UM's (UM1-UM5) and nodes (N1,N2) each have multiple antennae. The combination of each UM and node antenna is evaluated at the UM. Based on at least signal quality, the UM (UM1-UM5) selects its antenna and the best node antenna for use. An alternate antenna is selected if a person is determined to be present in a predetermined area adjacent a UM (UM1-UM5) corresponding to a predetermined RF power level.
Patent CA-2104463-C (CA)
Title: Improved razor blades
Inventor: TRANKIEM HOANG MAI
IPC: B26B21/60
Filed: 1992-02-20
Granted: 1995-12-12
Abstract: Improved razor blades and methods for producing the blades. The cutting edge regions of the blades include a solid adher-ent coating which is the residue of a heated mixture of a fluorocarbon polymer and a silane. The mixture is applied to the cutting edge regions of the blade and heated to a temperature sufficient to melt the fluorocarbon. The coatings achieved in the practice of the invention provide blades having improved shaving performance characteristics for the blade.
Patent CA-2105723-C (CA)
Title: Method of controlling insects
Inventor: FLUCKIGER CLAUDE
IPC: C07D253/06
Filed: 1993-09-08
Granted: 2004-08-24
Abstract: The invention relates to a method of controlling insects in which compounds of the formula (See Formula I) in free form or in agrochemically acceptable salt form, are used, wherein specific insects of the order Homoptera are controlled, to the corresponding use of those compounds, to corresponding insecticidal compositions, tine active ingredient of which is selected from those compounds, and to a process for the preparation of and to the use of those compositions. The invention relates also to a method of protecting plant propagation material against attack by pests, wherein compounds of formula I, in free form or in agrochemically acceptable salt form, are used, to the corresponding use of those compounds, to corresponding pesticidal compositions, the active ingredient of which is selected from those compounds, to a process for the preparation of and to the use of those compositions, and to plant propagation material correspondingly protected against attack by pests.
Patent CA-2107167-C (CA)
Title: Apparatus for dispensing conductive coating materials including color changing capability
Inventor: KONIECZYNSKI RONALD D
IPC: B05B5/16
Filed: 1993-09-28
Granted: 2000-05-30
Abstract: An apparatus for transferring electrically conductive coating materials, such as water-based paint, from at least one source to one or more coating dispensers or spray guns for discharge onto a substrate includes two "parallel" flow paths, each having a large reservoir pump, which transmit coating material to a common valve which, in turn, switches flow to the coating dispensers from one flow path to the other. Each parallel flow path provides a voltage block between one or more sources of coating material and the electrostatically charged coating material discharged from the spray guns to ensure that there is never a completed electrical path between the source of conductive coating material and the charged coating material during a coating operation. Additionally, a rapid and efficient color change capability is provided for the entire system which permits different colored coating materials to be dispensed from the apparatus herein with minimum downtime of the coating operation.
Patent CA-2110816-C (CA)
Title: Laser beam scanning apparatus and method
Inventor: CONEMAC DONALD C
IPC: H04N1/113
Filed: 1992-06-05
Granted: 1999-05-11
Abstract: A laser beam scanning apparatus employs a movable reflector (32) having a large number of flat reflective sides (44) and a deflector (16)) which shifts the laser beam (10) at high speed across a plurality of the reflective sides (44). The movement of the reflector (32) is synchronized with the deflection of the laser beam (10) to produce a desired scan pattern in a first scan direction (X).  The reflective sides (44) of the movable reflector (32) may be angled relative to each other in a second direction (Y) to produce different scan lines thereby providing an X-Y scan pattern. The combined high speed beam deflection and motion of the reflector (32) provide scanning of the beam (10) in parallel scan segments thereby providing high scanning speed of the beam (10) with a high degree of resolution.
Patent CA-2113371-C (CA)
Inventor: DAVENPORT JOHN M
IPC: G02B6/42
Filed: 1994-01-13
Granted: 2004-05-11
Abstract: Improved collection optics for a lighting system comprised of a light source, reflector and light receptive component include a multi-portion reflector or a non-imaging optical collector having a positive curvature located at an input end to the light receptive component. The collection optics capture additional lumens for transmission through the light guide. The optical arrangement can also collect different colors of light from the source that mould otherwise be omitted from transmission through the light receptive component.
Patent CA-2115927-C (CA)
Inventor: MISSALE GABRIELE
IPC: C07K7/06
Filed: 1992-08-26
Granted: 2009-04-21
Abstract: Peptides are used to define epitopes that stimulate HLA-restricted cytotoxic T  lymphocyte activity against hepatitis B virus antigens. The peptides are derived from regions of HBV nucleocapsid, envelope, polymerase and the transcriptional transactivor X protein, and are particularly useful in treating or preventing HBV infection, including methods for stimulating the immune response of chronically infected individuals to respond to HBV antigens.  Pharmaceutical compositions and hepatitis B vaccines which comprise the peptides and physiologically acceptable carriers can be employed in conjunction with other HBV vaccines to provide more effective immunity against the disease. Methods for identifying individuals who are particularly susceptible to deve-loping chronic HBV infection and who can be targeted for treatment by the CTL peptides are also provided.
Patent CA-2120306-C (CA)
Inventor: WATSON M BURNELL
IPC: F15B1/24
Filed: 1994-03-30
Granted: 1996-04-16
Abstract: An elongate tank for transport or for storage in bulk of semisolid and fluid materials, such as grease and oil. The tank has an outlet at one end thereof for discharging material contained therein, and has a generally cylindric interior surface.  A generally cylindric piston is sized to slide in the tank and is movable in a direction toward the outlet thereby to force material in the tank through the outlet.  The piston comprises a piston member and an elastic annular seal carried in a circumferential channel around the piston member.  The seal has an annular base and an annular crown disposed radially outwardly of and joined to the base with a fluid chamber between the base and crown. The seal is expandable by introducing fluid into the fluid chamber.  Expansion of the seal causes the crown to be pressed radially outwardly against the interior surface of the tank so that when the piston member slides in the tank a portion of the crown is maintained in sliding engagement with the interior surface thereby to wipe the material therefrom and to seal the piston member relative to the tank.  The crown has side surfaces and an outwardly facing surface.  The outwardly facing surface of the crown has two sloping surface portions and a circumferential ridge intermediate the side surfaces. The ridge is defined by the junction of the surface portions.
Patent CA-2121481-C (CA)
Title: Expression of polypeptides in e.coli under control of the e.coli mdh-gene promoter
Inventor: ALLDREAD RICHARD M
IPC: C12R1/19
Filed: 1992-10-16
Granted: 2006-08-08
Abstract: Methods for expressing polypeptides in E. coli are provided, together with vectors and recombinant DNA molecules for use in said methods. Expression is regulated in these methods by the use of the E. coli mdh gene promoter. The invention further provides a process for producing polypeptides derived from genes native to bacteria of the genus Thermus in E. coli.
Patent CA-2124393-C (CA)
Title: Method of making an abrasive compact
Inventor: TANK KLAUS
IPC: E21B10/567
Filed: 1994-05-26
Granted: 2004-07-13
Abstract: A method of producing an abrasive compact, particularly a diamond abrasive compact, is provided. The method uses conventional compact manufacture conditions and is characterised by the mass of abrasive particles which is used. This mass has an average particle size of less than 20 microns and consists of particles having at least three different average particle sizes.
Patent CA-2124992-C (CA)
Inventor: TANIBATA TOHRU
IPC: G03B27/58
Filed: 1994-06-02
Granted: 1997-10-21
Abstract: A photographic processing apparatus comprises a first magazine for feeding a first sensitive  material to the development station, a second magazine for feeding a second sensitive  material in a direction designated at an right angle to the feeding direction of the first sensitive material, a first cutter for separating a first sensitive sheet from the first sensitive  material, a second cutter for separating a second sensitive  sheet from the second sensitive  material, a transfer pass line for conveying the first and second sensitive  sheets   separated by their respective first and second cutters to the development station, and a transfer shifting means mounted at the intersection of the feeding direction of the first sensitive  material and the feeding direction of the second sensitive  material for transferring the second sensitive sheet to the pass line.
Patent CA-2125172-C (CA)
Inventor: PAGETT JEFFERY MORRIS
IPC: A61G5/04
Filed: 1992-12-03
Granted: 2004-02-03
Abstract: A four wheel drive vehicle (10) which is suitable for use as a wheelchair or the like. The vehicle (10) has a steering arrangement which allows the vehicule to be steered merely by selectively driving the left and right wheels. The steering arrangement (18,19,22,23) requires at least one of the front and rear pairs of wheels (12,13) to be castor mounted so as to be freely pivotal around respective pivot pins (18), with the pair of pastor mounted wheels (12,13) being linked (22,23) so that they pivot generally in unison. Preferably, each of the castor mounted wheels (12, 13) rotate in a vertical plane which is laterally spaced from the pivot pins (18).
Patent CA-2126157-C (CA)
Inventor: FUJISHIRO KAZUTOSHI
IPC: B31F1/20
Filed: 1994-06-17
Granted: 1998-09-01
Abstract: An endless belt having an inside surface, an outside surface, a length and a width. The belt has a canvas core layer, an elastomer layer outside of the canvas core layer, a surface canvas layer that is expansible lengthwise of the belt outside of the elastomer layer, and structure applied on the surface canvas layer and exposed on the outside surface of the endless belt to resist bonding of foreign material thereto.
Patent CA-2127968-C (CA)
Inventor: YOKOMACHI YUKIHIRO
IPC: G02B6/35
Filed: 1994-07-13
Granted: 2002-08-20
Abstract: Disclosed is an optical switch comprising a first stage for mounting a first optical fiber- thereon, a second stage for mounting thereon a plurality of second optical fibers opposing the first optical fiber by V-shaped grooves in an aligned state, a first driving mechanism for displacing the first stage in an aligning direction of the plurality of second optical fibers during optical path switching, a controller for detecting a displacement amount of the first stage and controlling the first driving mechanism, and a second driving mechanism for moving the second stage upward during optical path switching to selectively couple the first optical fiber with an arbitrary second optical fiber among the plurality of second optical fibers in a V-shaped groove, thereby switching an optical path of an optical fiber.
Patent CA-2133945-C (CA)
Title: Apparatus and method for recording and reproducing digital video data in a variable-speed mode
Inventor: YANAGIHARA NAOFUMI
IPC: H04N5/783
Filed: 1994-10-20
Granted: 2004-04-20
Abstract: Digital video tape recorder which operates to receive en advanced television (ATV) signal to be recorded, provide a portion such as a low-band coefficient of an intra-ceded frame of the ATV signal as variable-speed data, and record the digital video data and the variable-speed data in a main and a marginal area, respectively, of successive tracks on the record medium in which the marginal area is located on each track at a position which is reproducible in a fast-speed reproducing mode. The digital video tape recorder reproduces the recorded data in the fast-speed reproducing mode by reproducing the portion of the signal stored from the marginal area of each track which is located at specific reproducible areas.
Patent CA-2134870-C (CA)
Inventor: DARMON MICHAEL J
IPC: C08F222/00
Filed: 1993-05-03
Granted: 2007-07-17
Abstract: A improved method of free radical polymerization in an aqueous system, such as an emulsion or suspension process. The polymerization is conducted in the presence of a relatively low molecular weight macromonomer such as can be made with a metal chelate chain transfer catalyst. This method is useful for reducing the molecular weight of a variety of polymers and copolymers, including acrylic and olefinic polymers.
Patent CA-2136389-C (CA)
Title: Method and apparatus for producing internally apertured pressure-sensitive labels
Inventor: SENFT RICHARD E
IPC: B31D1/02
Filed: 1994-11-22
Granted: 1999-03-02
Abstract: A method and apparatus for producing internally apertured pressure-sensitive labels adhered to a non-apertured liner begins with a label web adhered to a first liner.  The internal aperture shapes are cut through the web only and not through the liner, forming apperture slugs separate from the web.  The first liner is then removed from the web, and the separate aperture slugs adhere to and are removed with the liner.  Next, the web, with apertures cut out, is adhered to a second liner and the label peripheries, in registry with the apertures, are cut through the web only and not through the liner, forming labels separate from the web.  Finally, the web is removed from the second liner, leaving individually internally apertured labels on the non-apertured second liner.
Patent CA-2138241-C (CA)
Inventor: TRICAUD CAROLINE
IPC: A61K8/25
Filed: 1994-12-15
Granted: 2000-05-09
Abstract: L'invention concerne de nouvelles compositions cosmétiques pulvérulentes pour la décoloration des cheveux, à base de dérivés peroxydés comme agents oxydants, et qui sont caractérisées par le fait qu'elles comprennent en outre au moins un copolymère linéaire séquencé bloc et/ou statistique de type polyoxyéthylène/polyoxypropylène, ledit copolymère présentant les propriétés d'être à la fois anhydre et, à température ambiante, liquide d'une part et soluble dans l'eau d'autre part. Les poudres décolorantes selon l'invention sont fines, anhydres, fluides, homogènes, non poussiérantes, se dispersent parfaitement dans l'eau oxygénée et présentent des propriétés cosmétiques améliorées. L'invention concerne également un procédé de synthèse de telles compositions et leur utilisation pour la décoloration des cheveux.