baber/WOPTO huggingface dataset:
Patent CA-2062576-C (CA)
Inventor: HERRINGTON FOX JOHN
IPC: A44B19/26
Filed: 1992-03-10
Granted: 2000-05-02
Abstract: A one-piece foldable plastic zipper slider for straddling relation with a profiled plastic reclosable fastener. The plastic zipper slider has hinged wings that are latched in place by a latch tongue which is deflected downward to snap in place and then cannot be re-opened because subsequent forces act in such a direction to engage it more strongly.
Patent CA-2063521-C (CA)
Title: Tacky, hydrophilic gel dressings and products therefrom
Inventor: LORENZ DONALD H
IPC: A61P31/04
Filed: 1992-03-19
Granted: 2002-10-15
Abstract: A dressing includes a stable, tacky gel of polyurethane and poly(N-vinyl lactam), the poly(N-vinyl lactam) having a K-value of at least about 60 and mole equivalents of acid groups above about 1.4. The dressing may also include a substrate and various additives incorporated with the gel.
Patent CA-2067601-C (CA)
Title: Transducer carrier for disk file and liquid film head-disk interface
Inventor: HOMOLA ANDREW MARIAN
IPC: G11B21/21
Filed: 1992-04-29
Granted: 1998-05-05
Abstract: A  disk  file  with  substantially  reduced  head-disk spacing   and   corresponding   improvement   in   recording performance uses a disk coated with a film of conventional high  viscosity  lubricant,   a  lubricant  reservoir  for replenishing the lubricant on the disk over the life of the file, and a transducer carrier with feet which ski on the high viscosity liquid film.  The file does not include any means for recirculating the lubricant since the lubricant spins off the disk at a relatively low rate due to its high viscosity.   The lubricant reservoir contains a very small amount of lubricant and thus may be maintained inside the substantially sealed disk file.   In one embodiment of the invention,  the sealed disk file is essentially evacuated. The operation of the disk file in a near vacuum environment is possible because, unlike conventional disk files, air is not required to support an air-bearing head-disk interface and the high vapor pressure of the relatively high molecular weight lubricant prevents its evaporation.
Patent CA-2076786-C (CA)
Title: Prosthesis with biologically inert wear resistant surface
Inventor: BUECHEL FREDERICK F
IPC: A61L27/30
Filed: 1992-08-25
Granted: 2002-06-04
Abstract: A prosthesis is provided having at least a smooth non-articulating load bearing surface disposed adjacent a bone. The prosthesis includes a substrate formed from a metallic alloy. At least the regions of the substrate defining the load bearing surface are coated with a biologically inert abrasion resistant material harder than the substrate for preventing leaching of ions from the substrate into adjacent body tissue and for preventing wear. The coating may be titanium nitride or zirconium or other such material exhibiting biological inertness and acceptable hardness. The coating preferably defines a thickness of 8-10 microns.
Patent CA-2076888-C (CA)
Inventor: ISHIKAWA KIICHIRO
IPC: A44B19/62
Filed: 1992-08-26
Granted: 1995-06-20
Abstract: An apparatus for manufacturing slide fasteners of a predetermined length from a continuous slide fastener chain comprising a gripper unit for gripping a leading end of the continuous slide fastener chain and feeding the slide fastener chain longitudinally along a feed path, a cutter unit for cutting the slide fastener chain into a succession of slide fasteners of a predermined length, and a plurality of slider holding units disposed downstream of the cutter unit along the feed path. The slider holding units are movable between a first position to hold a corresponding number of sliders in the feed path of the slide fastener chain to thread the sliders onto the slide fastener chain from the leading end thereof as the slide fastener chain is fed downstream by the gripper unit, and a second position remote from the first position. Each of the slider holding units is operative independent of the operation of another slider holding unit so that one or more sliders can selectively be threaded on the slide fastener chain by holding a desired number of the slider holding units in the first position.
Patent CA-2078657-C (CA)
Title: Alkaline corrugating adhesive composition
Inventor: FORAN MICHAEL
IPC: C08L61/02
Filed: 1992-09-18
Granted: 1997-06-10
Abstract: A crosslinking additive for imparting water resistance to starch-based alkaline corrugating adhesive compositions is prepared by reacting acetone and formaldehyde under aqueous alkaline conditions at 20-80°C in a molar ratio of from 2 to 5 moles of formaldehyde per mole of acetone.   The condensate is thereafter treated with from 1.0 to 2.0 moles of hydrogen peroxide per mole of unreacted formaldehyde which oxidizes the residual formaldehyde to formic acid; The  treated crosslinking  additive will  contain  less  than  0.4%  unreacted formaldehyde and may be added directly to a starch-based corrugating adhesive.
Patent CA-2081961-C (CA)
Title: Photoelectrochemical imaging system
Inventor: TENCH D MORGAN
IPC: B41C1/10
Filed: 1992-11-02
Granted: 2001-01-23
Abstract: A method and apparatus are provided for photoelectrochemical reproduction of an image on a plate or roller. For a printing press, the apparatus includes a reusable image roller coated with a oxide semiconductor. A plating solution is applied to the image roller as a thin film. The desired image is written onto the oxide semiconductor by light illumination that generates a photoelectrochemical reaction between the semiconductor and the plating solution. In a preferred embodiment, the image roller is coated with hydrophilic p-type NiO. The image is written onto the roller as dots of oleophilic metallic copper, which are formed on the NiO coating by laser-generated catholic photoelectrodeposition. Subsequent erasure of the metallic copper image can be accomplished by chemical or electrochemical dissolution of the deposited copper. The method functions to create, erase, and recreate high-resolution images directly on a printing press roller without the necessity of precise matrix registration.
Patent CA-2086629-C (CA)
Title: Process and apparatus for processing printing products
Inventor: HONEGGER WERNER
IPC: B42B9/00
Filed: 1993-01-04
Granted: 1999-03-30
Abstract: The processing drum, rotatable about the axis for processing printing products, has advancing means for the step-by-step advancing of the printing products deposited in a straddling manner on the rests.  In the upper region of the circulating path, these advancing means perform a working stroke about the axis and in the lower region a return stroke.  The processing drum has a drawing member reaching around it from below, on which drawing member holding members are arranged at the spacing (A) of the rests, in ordex to prevent the printing products from falling down when they pass through the lower part of the circulating path and at the same time to support the elongate processing drum.
Patent CA-2087681-C (CA)
Inventor: CUMMINGS PAUL M
IPC: B41F17/02
Filed: 1993-01-20
Granted: 2002-11-05
Abstract: The pressure seal product includes a roll of paper having a pressure-sensitive adhesive applied in a predetermined pattern to one or both faces of the paper web for forming mailers. The paper is rewound onto a roll with a tension and weight such that insufficient pressure is exerted for activating the pressure seal adhesive. The roll of paper with the pressure seal adhesive applied is fed into a printer for printing information on the paper web. The web is then passed through a cutter and a folder for folding the cut sheets into a mailer. The mailers are passed through a pressure sealer for applying pressure to the areas of the mailer containing the pressure-sensitive adhesive to activate the adhesive and secure the mailer.
Patent CA-2088847-C (CA)
Inventor: RODGERS MICHAEL B
IPC: C08F2/06
Filed: 1993-02-04
Granted: 2003-09-23
Abstract: The subject invention discloses a styrene-isoprene-butadiene rubber which is particularly valuable for use in making truck tire treads, said rubber being comprised of repeat units which are derived from about 5 weight percent to about 20 weight percent styrene, from about 7 weight percent to about '35 weight percent isoprene, and from about 55 weight percent to about 38 weight percent 1,3-butadiene, wherein the repeat units derived from styrene, isoprene and 1,3-butadiene are in essentially random order, wherein from about 25% to about 40% of the repeat units derived from the 1,3-butadiene are of the cis-microstructure, wherein from about 40% to about 60% of the repeat units derived from the 1,3-butadiene are of the traps-microstructure, wherein from about 5% to about 25% of the repeat units derived from the 1,3-butadiene are of the vinyl-microstructure, wherein from about 75% to about 90% of the repeat units derived from the isoprene are of the 1,4-microstructure, wherein from about 10% to about 25% of the repeat units derived from the isoprene are of the 3;4-microstructure, wherein the rubber has a glass transition temperature which is within the range of about -90°C to about -70°C, wherein the rubber has a number average molecular weight which is within the range of about 150,000 to about 400,000, wherein the rubber has a weight average molecular weight of about 300;000 to about 800,000, and wherein the rubber has an inhomogeneity which is within the range of about 0.5 to about 1.5.
Patent CA-2090146-C (CA)
Inventor: SUGIHARA SACHIKO
IPC: C01F17/218
Filed: 1993-02-23
Granted: 1997-05-20
Abstract: A non-pollution zinc-alkaline battery excellent in storage stability can be obtained by using, in formu-lation for negative electrode, a zinc alloy which contains at least one element selected from the group consisting of bismuth, lithium, calcium and aluminum which is free from mercury, lead, cadmium, indium and thallium is used as an active material and yttrium hydroxide or yttrium oxide optimized in a starting material therefor, particle size and weight loss on heat decomposition as an inorganic inhibitor.  The storage stability of the battery can be further improved by adding to the above formulation for a negative electrode a proper amount of a surfactant having a polyethylene oxide group in hydrophilic group and a perfluoroalkyl group in oleophilic group as an organic inhibitor.
Patent CA-2090681-C (CA)
Title: Noise-cancelling handset
Inventor: HOLLIER MICHAEL P
IPC: H04M1/03
Filed: 1991-09-05
Granted: 1994-12-13
Abstract: A noise-cancelling telephone handset comprises a housing defining an earpiece (2) and a mouthpiece (3) housing a first order pressure gradient microphone (m). The housing is pro-vided with two pressure-sensing locations (h1 and h2) in the region of the mouthpiece (3), these locations being connected to the microphone (m) by ducts (5). The pressure-sensing locations (h1 and h2) are spaced apart by a predetermined distance which is sufficiently large to permit locally-generated speech signals to produce a pressure gradient between the pressure-sensing locations whilst sound signals from distant sources produce substantially equal pressures at the pressure-sensing locations, whereby, in use, the output from the mouthpiece is substantially entirely that resulting from the locally-generated speech sig-nals.
Patent CA-2091354-C (CA)
Title: Treatment of inflammation
Inventor: LEZDEY JOHN
IPC: A61K38/57
Filed: 1991-09-26
Granted: 2005-04-12
Abstract: The invention provides use of an effective amount of a serine protease inhibitor selected from the group consisting of alpha 1-antitrypsin, secretory leucocyte protease inhibitor, C-reactive protein, serum amyloid A protein and alpha 2-macroglobulin, and pharmaceutically-acceptable salts thereof, for the prophylaxis or direct treatment of a mast cell-implicated disease or injury in a mammal. A pharmaceutical composition is also provided, comprising a serine protease inhibitor as listed above, for treatment of a patient suffering from a mast cell-implicated disease.
Patent CA-2095427-C (CA)
Title: Apparatus and method for hydroenhancing fabric
Inventor: STERNLIEB HERSCHEL
IPC: D04H1/50
Filed: 1991-10-30
Granted: 1992-05-06
Abstract: An apparatus and related process for enhancement of woven and knit fabrics through use of dynamic fluids which entangle and bloom fabric yarns.  A two stage enhancement process is employed in which top and bottom sides of the fabric are respectively supported on members and impacted with a fluid curtain including high pressure jet streams.  Controlled process energies and use of support members having open areas which are aligned in offset relation to the process line produces fabrics having a uniform finish and improved characteristics including, edge fray, drape, stability, abrasion resistance, fabric weight and thickness.
Patent CA-2101280-C (CA)
Inventor: FIORINA JEAN-NOEL
IPC: G01R31/392
Filed: 1993-07-26
Granted: 2001-04-17
Abstract: Failure of one or more battery cells, for example of an inverter battery bank, is detected by monitoring the second derivative (D) of the curve U(t) representative of the voltage U at the terminals of the battery in the course of discharge. If the second derivative is positive (F7), this is significant of a failure.
Patent CA-2106743-C (CA)
Title: Germicidal air filter
Inventor: PICK WILLIAM E
IPC: F24F7/00
Filed: 1993-09-22
Granted: 2000-12-05
Abstract: A germicidal air purifier for trapping and destroying airborne microorganisms is disclosed. The air purifier includes an ultraviolet radiation source and a juxtaposed filter medium. A one of the ultraviolet radiation source and the falter medium is fixed and the other is displaceable so that at least an upstream side of the filter medium is systematically exposed to germicidal levels of radiation. In a first preferred embodiment, a fixed ultraviolet lamp irradiates a cylindrical filter medium which is rotated on its longitudinal axis in close proximity to the lamp so that the upstream side of the filter medium is systematically irradiated. In a second preferred embodiment, a radiant lamp is moved reciprocally across an upstream side of a planar filter medium to systematically irradiate the filter medium. In a third preferred embodiment, a radiant lamp is rotated about an axis which is at a right angle to its longitudinal axis so that a circular area of a planar filter medium is irradiated. The advantage is that microorganisms trapped on the filter medium are exposed to a lethal dose of radiation and the air purifier is consistently effective at destroying a significant percentage of airborne microorganisms suspended in air passed through the filter medium.
Patent CA-2108518-C (CA)
Inventor: STEMPIEN JOSEPH W
IPC: B41J35/00
Filed: 1993-10-15
Granted: 1998-01-27
Abstract: An apparatus for printing images on sheet material has a housing, a roller platen mounted within the housing for supporting the sheet material, and a print head mounted adjacent to the platen for receiving the sheet material between the platen and the print head and printing images onto the sheet material passed between the platen and the print head.  Two first wiper-blade assemblies are mounted on either side of the roller platen relative to each other, and each wiper-blade assembly has at least one wiper blade extending across the width of the sheet material defining an edge portion contacting the sheet material, for continuously removing dust particles and other debris from the sheet material prior to passage between the print head and the roller platen.  A donor web bearing printing ink is interposed between the print head and the sheet material for forming graphic images on the sheet material by transfer of ink from the donor web to the sheet material.  Two second wiper-blade assemblies are mounted on opposite sides of the print head relative to each other, and each second wiper-blade assembly includes a wiper blade defining an edge portion contacting the surface of the donor web facing the print head, for removing dust particles and other debris from the surface of the donor web prior to passage between the print head and the roller platen.
Patent CA-2110409-C (CA)
Inventor: DE CUPERE MARCEL J J
IPC: C11D17/00
Filed: 1992-05-29
Granted: 1998-09-08
Abstract: The present invention provides stable, free-flowing foam-control agent in granular form, comprising a silicone antifoam compound, a carrier material, an organic coating material, characterized in that they contain a crystalline or amorphous aluminosilicate, at a weight ratio with the silicone antifoam compound of 1/5 to 2/1. The present invention also provides a method to make such agents, and detergent compositions containing said foam control agent.
Patent CA-2110618-C (CA)
Inventor: LENK LEOPOLD
IPC: B61F3/16
Filed: 1993-12-03
Granted: 2003-09-30
Abstract: Gantry bogey 19 for railborne vehicles inserted between adjoining ends of successive carriages 20, 21 of a carriage consist and forming at least in part the passage between the two carriages 20, 21 and comprising transversely to the direction of travel mutually opposing wheels 28 respectively wheel sets which are bridged by a gantry 29 which on both sides by way of vertical pillars 2 is supported on the respective wheel case 27 respectively wheel frame. The vertical pillars 2 are constructed at least in the lower region as tubes which are each guided by a pin 2 carried by the wheel case 27 respectively wheel frame by way of a spring.
Patent CA-2115461-C (CA)
Title: Enzymatic analysis using substrates that yield fluorescent precipitates
Inventor: HAUGLAND RICHARD P
IPC: C07H15/26
Filed: 1992-08-21
Granted: 1996-12-03
Abstract: Novel fluorescent precipitating substances made from a class of fluorophores, generally including quinazolinones (quinazo-lones), benzimidazoles, benzothiazoles, benzoxazoles, quinolines, indolines, and phenanthridines, having general formula (I), where carbon atoms of -C1=C2- are further joined so as to complete a first 5- or 6-membered aromatic ring which may con-tain at least one of the hetero atoms N, O or S, where carbon atoms of -C4-N=C3- are further joined so as to complete a second 5- or 6-membered aromatic ring that contains at least the nitrogen between C3 and C4 and may contain at least one additional hereto atom N, O or S, where the first and second aromatic rings may be joined by a 5- or 6-membered bridging ring that contains at least the C from the first aromatic ring and the C3 from the second aromatic ring, which bridging ring may be saturated or unsaturated and may contain a hetero atom N, O, or S, where each of the first and second aromatic rings may be fused to at least one additional aromatic ring that may contain at least one of the hetero atoms N, O or S, and where each of said aromatic rings may be further modified by substitution of any hydrogens on an aromatic carbon by sub-stituents that are halogen, nitro, cyano, aryl, lower alkyl (1-4 carbons), perfluoroalkyl (1-4 carbons), or alkoxy (1-4 carbons), or any combination thereof; and Xfl is covalently linked to the oxygen -O- at C1.
Patent CA-2115628-C (CA)
Inventor: MORRIS KENNETH SCOTT
IPC: A47G19/22
Filed: 1994-02-14
Granted: 1999-02-09
Abstract: A plastic slidable removable cover for a beverage container, such as a soda can, that can cover or expose the can opening using the same hand that grasps the container.  The cover comprises a tab portion that fits under the rivet of a conventional soda can pull ring and covers the opening created, a periphery engaging portion that grips the lip of the can, and a plurality of serrations facilitating easy sliding of the cover around the lip periphery.  The cover can be easily removed for use with other containers.
Patent CA-2116547-C (CA)
Inventor: BRADSHAW ROBERT FAGAN
IPC: G01N27/64
Filed: 1992-09-21
Granted: 2002-07-16
Abstract: Ion Mobility Spectrometry (IMS) equipment comprises an enclosed compartment (10) contained within which there is an IMS cell (12) and a body of absorbent material (14). Sam-ples for detection by the cell (12) are introduced into the com-partment (10) by means of a pinhole (30), the samples being drawn in by a negative pressure pulse within the compartment produced by means of a loudspeaker (40). A sample, once it has been drawn in and detected by the cell (12), will diffuse within the compartment (10) and any water vapour or other interfering species thus introduced will be absorbed by the absorbent mate-rial (14) so maintaining a clean, dry atmosphere within the de-vice.
Patent CA-2117452-C (CA)
Inventor: BYSTRY JERRY A
IPC: G09F3/03
Filed: 1994-08-10
Granted: 2004-08-03
Abstract: A cable locking and sealing device which has an attached cable and the free end of the cable can be passed through a member to lock it. Then the free end of the cable is passed down through an opening in the body of the locking and sealing device in which there is a spring biased conical-shaped member that carries a ball mounted in a transverse opening. The ball rides on an inclined conical surface and engages and locks the cable when an attempt is made to withdraw it from the locking device in a direction opposite to the inserted direction.
Patent CA-2118387-C (CA)
Title: Thermoplastic compositions based on nylon and polyacrylic rubber
Inventor: BIGGI AROLDO
IPC: C08L33/08
Filed: 1994-10-18
Granted: 2006-07-18
Abstract: Polymeric compositions basically consisting of polyamides (nylon) and acrylic rubber, are characterized by their high shock-resistance and modulus, together with high thermal characteristics. They are used in the production of moulded products, which can be used in fields which require high thermal characteristics and high modulus and at the same time a good surface appearance and excellent anti-shock properties.
Patent CA-2118721-C (CA)
Title: Designator and method for making the same
Inventor: WONG ALLEN
IPC: G09F13/04
Filed: 1993-09-16
Granted: 1998-04-28
Abstract: A designator (700) adapted as an actuator for an elastomeric membrane keypad (1100) sandwiched between a circuit board (1203) and a housing (1201). The designator (700) has a substantially translucent substrate (701). A top surface of the substrate (703) has substantially translucent (705) and substantially opaque (707) portions for producing negative (800) or positive (1000) image graphics. Upper side surfaces of the substrate (709) adjoining the top surface (703) are substantially opaque. Lower side surfaces of the substrate (711) adjoining the upper side surfaces (709) are substantially translucent. A light source (1206) illuminates the graphics and the perimeter of the designator (1301). A preferred associated method describes constructing the designator using a two part insert molding process.
Patent CA-2123329-C (CA)
Inventor: WEBER MARY EVA GARVIE
IPC: A61F13/15
Filed: 1994-05-11
Granted: 2005-01-11
Abstract: Disclosed herein is a liquid absorbent material that is particularly useful as a liner material for personal care absorbent articles such as diapers, training pants, incontinence garments, sanitary napkins, bandages and the like. The material contains a plurality of peaks across its surface at spaced-apart intervals separated by channels.      Disposed within the peaks is a liquid absorbing material capable of absorbing body exudates and liquids in general.      Due to the materials and the nature of the construction of the present invention, when used as a liner material for personal care absorbent articles such as diapers, it tends to reduce the total surface area in contact with the infant's skin and it also provides a plurality of air channels within the diaper from the front waistband to the back waistband of the diaper thereby providing a path for increased air circulation. The material of the present invention has other uses as, for example, a packing or liner material for packaging and shipping materials containing liquids. In addition, the peaks can contain other additive such as soaps so the material can be used as a wash pad or cloth.