baber/WOPTO huggingface dataset:
Patent CA-2206524-A1 (CA)
Title: High entrainment venturi for random orbital sander dust collection
Inventor: SEITH WARREN A
IPC: B24B55/06
Filed: 1995-11-20
Abstract: A venturi nozzle (1) for high entrainment vacuum use for random orbital sander dust collection having a nozzle design which improves the nozzle jet (10) to promote a uniform velocity profile (7) across the diameter of the jet nozzle (1) as well as a thin shear layer (6) by providing a shallow angle nozzle (1) approach, a smooth transition flow into the nozzle throat (2) and an accurate nozzle departure radius (3).
Patent CA-2206613-A1 (CA)
Title: Process and device for bonding discs to one another
Inventor: ARAI TETSUJI
IPC: B01J19/12
Filed: 1997-05-30
Abstract: In order to cement UV radiation-transmitting substrates to one another rapidly and without deformation, and to cement them together with high efficiency without melting an aluminum film of an information recording layer, a device for bonding discs to one another is provided which has a radiant light source which irradiates the discs with radiant light which contains ultraviolet radiation at least once in a flash. A wavelength selector is placed in the optical path between the radiant light source and the discs at a distance from the discs, which transmits the ultraviolet rays and absorbs light in a range of wavelengths which are absorbed by the W radiation-transmitting substrates of the discs. A cooling device admits and discharges cooling air between the radiant light source and the wavelength selector.
Patent CA-2210183-A1 (CA)
Title: Tightening device for strings, shoelaces, string and like elongated and pliable elements having free ends
Inventor: HOLMBERG JOHAN
IPC: F16G11/10
Filed: 1995-12-14
Abstract: A device for tightening laces, strings and like elongated and flexible elements having free ends, wherein the device comprises an outer sleeve (1) and an inner spring-biassed lock plunger assembly (2) which can be moved axially in the sleeve. The sleeve and the lock plunger assembly have through-penetrating, mutually corresponding holes at right angles to the longitudinal axis of the sleeve and assembly respectively. The free ends of the element are intended to be inserted through these holes after having moved the lock plunger assembly in the sleeve to a position in which the holes are in register with one another. The sleeve (1) and the lock plunger assembly (2) both have two through-penetrating, end-receiving holes (10, 11 and 20, 21 respectively), the distance between the holes (10, 11) in the sleeve (1) being shorter than the distance between the holes (20, 21) in the lock plunger assembly (2). A spring-force generating spring (23) is mounted between two parts (22, 24) of the lock plunger assembly (2), each of these partsbeing provided with a respective one of the two holes (20, 21) in the lock plunger assembly.
Patent CA-2211764-A1 (CA)
Title: Adjustable drill jig
Inventor: LOSTLEN TAD K
IPC: B23B47/28
Filed: 1997-07-30
Abstract: An adjustable drill jig for precisely locating and drilling one or more holes in a workpiece such as a kitchen cabinet component (side panel, door, drawer, etc.) or the like. The adjustable drill jig is versatile in its applications and is composed of components that can be readily assembled (or disassembled) to form various modifications of the drill jig for different applications. The adjustable drill jig is composed of at least one elongated element with at least one rule on a surface thereof, at least one adjustable drill guide which has a drill bushing therein and is slidably movable along the length of the elongated element, and a stop plate attached to an element which is slidably movable along the at least one elongated element.
Patent CA-2214823-A1 (CA)
Inventor: TSAI JER-CHIA
IPC: A61K31/425
Filed: 1996-01-23
Abstract: Méthode d'inhibition de l'artériosclérose ou de la prolifération des cellules de muscles lisses par l'identification d'un animal présentant une artère susceptible de nécessiter ce type d'inhibition et par la mise en contact de l'artère avec un antioxydant en quantité induisant l'apoptose.
Patent CA-2216823-A1 (CA)
Title: An electrode for a battery and a battery containing it
Inventor: MATSUDA YOSHIO
IPC: H01M50/489
Filed: 1997-09-25
Abstract: An electrode for at least one of the anode and cathode or a battery comprises an electrode member and a microporous membrane disposed on and integral with theelectrode member. The microporous membrane may be composed mainly of a thermoplastic resin.
Patent CA-2220149-A1 (CA)
Title: Novel photochromic organic materials
Inventor: VIAL JACQUES JEAN
IPC: G02B1/04
Filed: 1996-06-20
Abstract: The invention relates to photochromic transparent organic materials presenting an index of refraction of more than 1.55, which are free of optical distortions and are prepared by radical polymerization of a polymerizable composition comprising: a) 80-95 wt. % of at least one monomer represented by general formula (I), where R = H or CH3, and m and n are independently 1 or 2;  b) 5-20 wt.% of at least one aromatic monovinyl monomer represented by general formula (II) where R1 = H or CH3; c) an effective quantity of at least one dye that imparts photochromic properties to the material, selected from the groups of spiroxazines, spiropyrans and chromenes; d) an effective quantity of a chain transfer agent; and e) an effective quantity of a radical polymerization initiator, characterized in that the chain transfer agent is a linear alkanethiol and the radical polymerization initiator is a diazo compound.
Patent CA-2222082-A1 (CA)
Inventor: BUFF WILLIAM J IV
IPC: B62D63/00
Filed: 1997-11-25
Abstract: A controllable slide car for controllably simulating oversteer and understeer conditions in a moving automobile.      The controllable slide car comprises a rear steering linkage assembly that attaches to the rear wheel mounting assemblies of an automobile and a controller for controllably steering the rear steering linkage assembly. The controller is powered by the battery of the automobile and manually controlled by a control unit to steer the rear wheel mounting assemblies.
Patent CA-2226416-A1 (CA)
Title: Energy absorption device and vehicle, notably railway, comprising such an absorption device
Inventor: GIBEAU MICHEL
IPC: B61F19/04
Filed: 1998-02-09
Abstract: The energy absorber (1) is interposed between the driving cab (2) and a bodywork (3). It has a parallelepiped shape, the largest face of which is located in a plane formed by the rear face (2A) of the driving cab and the front face (3A) of the bodywork. There are first (4) and second (5) plane facing rings not in contact. Pivots (6) integral with the upper part of the rings define a radial pivoting axis (X-X) in the top part of the driving cab. A shock absorber (9) is located in the lower part of the rings such that absorption occurs in the cab longitudinal direction. The cab chassis (10) is fixed to the lower part of the plane rings.
Patent CA-2227054-A1 (CA)
Title: Electric shaver
Inventor: OZAWA TETSUYA
IPC: B26B19/14
Filed: 1998-01-15
Abstract: An electric shaver having one pair or a plurality of pairs of inner and outer cutting members so that the inner cutting member and outer cutting member are rotated by a single drive source in the same direction or opposite directions relative to each other.
Patent CA-2232464-A1 (CA)
Title: A process for the biological treatment of wastewater with periods of biomass starvation
Inventor: HAGGERTY KEN
IPC: C02F3/30
Filed: 1998-03-18
Abstract: A biological treatment of wastewater from intermittent and/or sporadic sources is described. The process includes the step of: maintaining treated wastewater effluent and biomass in a quiescent state without stirring, aeration or agitation during biomass starvation wherein said biomass retains the capacity for biological wastewater treatment following the period of prolonged biomass starvation.
Patent CA-2233305-A1 (CA)
Inventor: HARTMAN NILE F
IPC: G01N21/45
Filed: 1996-09-27
Abstract: An improved integrated optic interferometric sensor uses a planar waveguide to offer detection sensitivity equal to the Mach-Zehnder interferometric sensor, while retaining the input coupling and manufacturing ease characteristic of a planar waveguide. Enhanced output signal processing capabilities are provided by use of at least two integrated optic interferometric sensors employing planar constructs.
Patent CA-2235468-A1 (CA)
Title: Chaperone expression plasmids
Inventor: YANAGI HIDEKI
IPC: C07K14/50
Filed: 1998-06-19
Abstract: An artificial operon comprising polynucleotides encoding each of chaperones DnaK, DnaJ and GrpE; an expression plasmid carrying the operon; a cotransformant prepared by introducing the expression plasmid into E. coli together with a foreign protein expression vector; and a method for producing a foreign protein comprising using the cotransformant.
Patent CA-2235598-A1 (CA)
Inventor: AHN SOON KIL
IPC: A61K31/70
Filed: 1996-11-01
Abstract: According to the present invention, provided are novel nucleoside derivatives having anti-viral activity, in particular, anti-HBV (anti-Hepatitis-B Virus) activity, represented by general formula (I), wherein R1 represents hydrogen, phosphate, phosphonate, alkyl or acyl, R2 represents alkoxy or halogen, R3 represents substituted or non-substituted pyrimidine or purine base, and X represents O, S, SO or SO2; pharmaceutically acceptable salts thereof, and processes for preparation thereof. As the compound (I) has two or more asymmetric carbon atoms, all possible stereoisomers and mixtures thereof are included in the scope of the present invention.
Patent CA-2235714-A1 (CA)
Inventor: ARRETZ EMMANUEL
IPC: C07C319/24
Filed: 1996-12-03
Abstract: The preparation of organic disulphides and polysulphides by reaction of sulphur with a mercaptan or with a polysulphide of lower sulphur order in order to convert it into polysulphide of higher order, or alternatively by reaction of a mercaptan with an organic polysulphide of high sulphur order in order to convert it into polysulphide of lower sulphur order, in the presence of a catalyst in the form of a resin with a basic function, characterized in that the resin is based on polystyrene-divinylbenzene (PS-DVB) functionalized with primary amino groups and having the general formula (I):    <IMAGE>  (I)    <IMAGE>   being the PS-DVB resin support, L being a linear organic radical which is as long as or longer than the methylene radical (-CH2-).
Patent CA-2236131-A1 (CA)
Inventor: SHERMAN BERNARD CHARLES
IPC: A61K9/107
Filed: 1998-04-29
Abstract: Pharmaceutical compositions in the form of an emulsion preconcentrate or microemulsion preconcentrate which comprise a cyclosporin as active ingredient, propylene carbonate as hydrophilic solvent, glycerides as lipophilic solvent, and a surfactant.
Patent CA-2237165-A1 (CA)
Inventor: OLLAR ROBERT-A
IPC: C12Q1/04
Filed: 1996-11-07
Abstract: A method of determining the presence or absence of a nonparaffinophilic microorganism in a specimen taken from a patient is disclosed. The method includes providing a receptacle containing an aqueous solution (13) and adjusting the solution to mimic the in vivo clinical conditions of the patient. The method further includes inoculating the solution with the specimen and then placing in the receptacle a slide (18) coated with a carbon source to bait the nonparaffinophilic microorganism. The slide (18) is then analyzed after exposure to the specimen to determine the presence or absence of the nonparaffinophilic microorganism. An associated apparatus is also disclosed. The front elevational view of a test tube (12) holding a slide coated with a carbon source in an aqueous solution (13) inoculated with a specimen.
Patent CA-2237267-A1 (CA)
Title: Synthesis of the sulfonylpyrimidine derivatives with anticancer activity
Inventor: KRIZMANIC IRENA
IPC: C07D489/04
Filed: 1998-05-08
Abstract: This invention relates to the processes for the preparation of unknown N-1 sulfonyl and N-1,NH-4 disulfonyl derivatives of pyrimidine nucleo bases, general formulae I, II, III, IV, V and VI, and their biological activity.    (see fig. I)      (see fig. II)      (see fig. III) (see fig. IV)   (see fig. V)       (see fig. VI) This type of compounds exhibits strong anticancer activity in vitro on different tumor cell lines whereas cytostatic behavior on normal human fibroblasts is much less pronounced.
Patent CA-2238978-A1 (CA)
Title: Retroviral protease inhibiting compounds
Inventor: KEMPF DALE J
IPC: C07D277/34
Filed: 1996-12-06
Abstract: A compound of formula (I) is disclosed as an HIV protease inhibitor. Methods and compositions for inhibiting an HIV infection are also disclosed.
Patent CA-2240002-A1 (CA)
Inventor: WEISMAN KENNETH
IPC: A61K31/415
Filed: 1998-06-08
Abstract: A method of decreasing atherosclerosis and its complications including but not limited to myocardialinfarction, stroke and peripheral vascular disease wherein the method involves administering to a human or an animal an amount of a substance sufficient to reduce atherosclerosis.
Patent CA-2246264-A1 (CA)
Inventor: COLLEN JUSTIN
IPC: A61M39/00
Filed: 1998-09-02
Abstract: A kink inhibiting device is provided for inhibiting kinking in a length of curved flexible tubing, and in particular IV or drip tubing. The device comprises a pair of U-shaped shell halves which are joined back-to-back at their bight portions by an integral hinge formation. The shell halves each define channels having semi-circular cross-sectional profiles, and are formed with connecting lands carrying studs and complemental apertures for allowing the shell halves to mate with one another. The shell halves each have a radius of curvature (R) which is greater than the maximum radius of curvature at which the flexible tubing starts to kink when unsupported.
Patent CA-2246735-A1 (CA)
Title: Anti-graffiti construction adhesive composition
Inventor: MARTIN LOUIS
IPC: C08L33/06
Filed: 1998-09-28
Abstract: A construction adhesive composition includes from about 1 to about 99% by volume of a construction adhesive, from about 1 to about 15% by volume of xylol (mineral spirits) and from about 1 to about 15% by volume of a paint. The construction adhesive composition provides good repellency against graffiti and is not sacrificial in nature.  ANTI-GRAFFITI      CONSTRUCTION ADHESIVE COMPOSITION
Patent CA-2248414-A1 (CA)
Title: Swivel nightlight
Inventor: VICTER AU YEUNG TIN SHUN
IPC: F21V23/04
Filed: 1998-09-25
Abstract: A night light which plugs directly into an electrical outlet with a rotatable housing which swivels 360° to direct light in a desired direction. The night light includes a light bulb connected to its power source in a self-contained housing. The night light also includes a light sensor which activates and deactivates the bulb depending upon ambient light levels.
Patent CA-2248649-A1 (CA)
Title: Enzyme multimer and process of producing same
Inventor: BOTT RICHARD L
IPC: C11D3/386
Filed: 1997-02-17
Abstract: An enzyme multimer is provided which comprises a plurality of monomer units including a first monomer unit having enzymatic activity and a second monomer unit having enzymatic activity, wherein each of the first monomer unit and the second monomer unit comprise a cysteine residue and the cysteine residues of each monomer unit are covalently bound to each other through a disulfide bond to covalently attach the first monomer unit to the second monomer unit.
Patent CA-2250725-A1 (CA)
Inventor: HELLINGS DEBORAH
IPC: A61M16/06
Filed: 1998-10-20
Abstract: A medical face mask used as an anaesthesia/respiratory mask comprising a shaped base member 2 having a front wall portion 3 and a side wall portion 5 which defines an open portion 6 enabling the vase member to be placed over a patient's face. The base member 2 has a sealing means 7 around the peripheral edge of the side wall 5. The mask when viewed face on is of a substantially heart shape with the upper part of the mask 9 is wider than the lower part of the mask, with the indentation 9a at the top of the mask extending below the bridge and towards the tip of the patient's nose, in use.
Patent CA-2254623-A1 (CA)
Title: Synthesis of 2-(methylsulfonyl)-5-(trifluoromethyl)-1,3,4-thiadiazole via oxidation of 2-(methylthio)-5-(trifluoromethyl)-1,3,4-thiadiazole with glacial acetic acid
Inventor: JELICH KLAUS
IPC: B01J31/04
Filed: 1998-11-27
Abstract: The present invention provides a process for making thiadiazole sulfones. The present process is used to make 2-(methylsulfonyl)-5--(trifluoromethyl)-1,3,4-thiadiazole.  2-(Methylsulfonyl)-5-(trifluoromethyl)--1,3,4-thiadiazole is made using catalytic oxidation in the presence of a suitable oxidizing agent. The catalyst used for the oxidation reaction is glacial acetic acid.
Patent CA-2255624-A1 (CA)
Title: Compositions and methods for the detection of mycobacterium kansasii
Inventor: KNOTT CAROLINE F
IPC: C12Q1/689
Filed: 1997-05-15
Abstract: The featured invention discloses and claims olignonucleotide hybridization assay probes and helper oligonucleotides which are designed to be complementary to specific regions of M. kansasii rRNA or the DNA encoding it, or to an oligonucleotide or nucleic acid comprising, consisting essentially of, or consisting of, a M. kansasii rRNA or rDNA nucleotide sequence. The hybridization probes of the present invention are designed to hybridize to a target nucleic acid in a region of the molecule having a specific target nucleotide sequence under conditions which allow the selective detection of the target nucleic acid. The probes are further designed to detect M. kansasii typical as well as atypical strains. The present invention also discloses and claims double-stranded nucleic acid hybrid molecules formed between the hybridization probes and their specific target nucleic acids.
Patent CA-2255696-A1 (CA)
Title: Azetidine, pyrrolidine and piperidine derivatives as 5-ht1d receptor agonists
Inventor: BOURRAIN SYLVIE
IPC: C07D405/14
Filed: 1997-05-15
Abstract: A class of substituted azetidine, pyrrolidine and piperidine derivatives of formula (I) are selective agonists of 5-HT1-like receptors, being potent agonists of the human 5-HT1D.alpha. receptor subtype whilst possessing at least a 10-fold selective affinity for the 5-HT1D.alpha. receptor subtype relative to the 5-HT1D.beta. subtype; they are therefore useful in the treatment and/or prevention of clinical conditions, in particular migraine and associated disorders, for which a subtype-selective agonist of 5-HT1D receptors is indicated, whilst eliciting fewer side-effects, notably adverse cardiovascular events, than those associated with non-subtype-selective 5-HT1D receptor agonists, wherein Z represents an optionally substituted six-membered heteroaromatic ring selected from pyridine, pyrazine, pyrimidine and pyridazine; E represents a chemical bond or a straight or branched alkylene chain containing from 1 to 4 carbon atoms; Q represents a straight or branched alkylene chain containing from 1 to 4 carbon atoms, optionally substituted in any position by one or more substituents selected from fluoro and hydroxy; T represents nitrogen or CH; U represents N or CR2. V = O, S or NR3. M \A R are as defined in the application.
Patent CA-2258395-A1 (CA)
Inventor: HORTON ROBERT B
IPC: F16D3/38
Filed: 1999-01-08
Abstract: A universal joint for interconnecting a pair of rotating shafts and a method of assembling the universal joint. The universal joint includes a pair of yokes secured to the shafts and a cruciform for interconnecting the yokes.  Both yokes are bifurcated to define a pair of laterally-spaced legs. Each leg has an aperture which includes a first bore adapted to receive a bearing cup therein and a second bore into which an end portion of the bearing cup extends. Each bearing cup rotatably supports one of four orthogonal trunions extending from the cruciform. With respect to each of the yokes, a pair of axially-aligned trunions, with bearing cups mounted thereon, are installed into the apertures so as to support the cruciform between the legs of the yoke. Thereafter, a retention member is inserted in the second bore of each aperture such that one surface of the retention member rests on the bearing cup. After the rotary axis of the first shaft is aligned with the rotary axis of the second shaft, an edge portion of the legs surrounding the second bore of each aperture is deformed to define one or more projections which engage the opposite surface of the retention member. The projections secure the retention members within the second bore of the apertures, thereby fixing the axial position of the bearing cups and trunions relative to the yoke.
Patent CA-2258460-A1 (CA)
Inventor: MCKAY ALBERT A
IPC: F16K1/46
Filed: 1999-01-13
Abstract: A valve having a housing and a valve member located in the housing for controlling the flow of a fluid or fluid pressure directed through the housing. The valve further includes a removable valve seat located in the housing and against which the valve member engages and disengages in the fluid or fluid pressure control process. A sealing member is located between an outer surface of such valve seat and an inner surface of the housing of the valve. The removable valve seat being made of a durable molded plastic material.
Patent CA-2260601-A1 (CA)
Title: Sheet material having weakness zones and a system for dispensing the material
Inventor: JOHNSON DOUGLAS W
IPC: A47K10/16
Filed: 1999-01-29
Abstract: Dispensable sheet material includes opposite side edges spaced apart from one another to define the overall width of the sheet material. Zones of weakness are spaced along the sheet material. Adjacent zones of weakness are spaced apart by a distance of from about 50% to about 200% of the overall width of the sheet material to divide the sheet material into a plurality of sheet material segments. Each of the zones of weakness comprises a plurality of perforations and frangible sheet material portions. Each of the frangible sheet material portions has a width of from about 0.3 mm to about 1.8 mm. The total width of the frangible sheet portions in each zone of weakness is from about 10% to about 30% of the overall width of the sheet material. The sheet material has an elasticity in the dispensing direction of from about 4% to about 20%. The sheet material has a dry tensile strength in the dispensing direction of from about 4,000 grams per 3 inches of width to about 12,000 grams per 3 inches of width. The sheet material has a wet tensile strength in the weakest direction, typically, a direction orthogonal to the dispensing direction, of at least about 900 grams per 3 inches of width.  In addition, the sheet material has a tensile ratio of less than about 2Ø   A dispensing system includes a dispenser defining an interior for containing the sheet material and an outlet for allowing sheet material to be dispensed from the interior of the housing.
Patent CA-2263579-A1 (CA)
Title: Process for reducing total sulphur content in gases containing hydrogen sulphide and other sulphur components
Inventor: STEGENGA SANDER
IPC: B01J23/88
Filed: 1997-08-21
Abstract: Process for reducing the total sulphur content of a gas containing hydrogen sulphide and other sulphur components, which process comprises: (a) contacting the gas with a reducing gas in the presence of a hydrogenation catalyst comprising at least one metal component selected from Groups VIB and VIII supported on a carrier comprising amorphous silica-alumina, (b) contacting at least part of the gas obtained from step (a) with a hydrolysis catalyst capable of catalysing the hydrolysis of carbonyl sulphide to form hydrogen sulphide, and (c) removing hydrogen sulphide from the gas obtained from step (b), thus obtaining a product gas having a reduced total sulphur content.