baber/WOPTO huggingface dataset:
Patent CA-2108699-C (CA)
Title: Method of purification of amylase, purified amylase so obtained and uses of purified amylase
Inventor: GOOD IVAN C
IPC: C07K1/30
Filed: 1993-10-19
Granted: 2005-03-29
Abstract: The present invention relates to a method for the preparation of a purified amylase recovered from a fermentation broth, comprising the addition of a precipitation agent which is a halide salt, most preferably sodium or potassium chloride.      According to a preferred embodiment, a further precipitation agent is added which is an organic compound, most preferably an alkyl ester of 4-hydroxybenzoic acid.      The present invention also relates to the purified amylases so obtained and to the uses of these purified amylases.
Patent CA-2110419-C (CA)
Title: Liquid applicator with frangible ampoule and support
Inventor: WIRT DAVID F
IPC: B65D83/00
Filed: 1993-12-01
Granted: 2006-07-11
Abstract: A liquid applicator is provided which is particularly useful in applying preoperative surgical scrubs or paints to skin. The liquid is contained in a frangible ampoule inside the body of the applicator. This ampoule is supported and protected by a deformable element that prevents unintentional breakage of the ampoule from impacts during storage and handling before use. The applicator is actuated by pushing at least a portion of the frangible ampoule through an aperture in the deformable element and into contact with a means for breaking the ampoule.
Patent CA-2119166-C (CA)
Inventor: LAWTER RAYMOND L
IPC: A47L9/32
Filed: 1994-03-16
Granted: 1998-06-16
Abstract: A power assisted upright cleaner is provided with resilient spring cushioning for a hand grip driven actuating means that initiates power assist for the cleaner.
Patent CA-2119738-C (CA)
Title: Control of a solution process for polymerization of ethylene
Inventor: ZBORIL VACLAV GEORGE
IPC: C08F10/00
Filed: 1992-09-25
Granted: 2006-07-18
Abstract: A solution process for the preparation of high molecular weight polymers of alpha-olefins selected from the group consisting of homopolymers of ethylene and copolymers of ethylene and C3-C12 higher alpha-olefins is disclosed. Ethylene and/or mixtures of ethylene and C3-C12 higher alpha-olefins are polymerized under non-isothermal conditions in a tubular reactor or in a system of reactors which operate under different conditions, in the presence of a catalytic amount of a  titanium-containing coordination catalyst in an inert solvent at a temperature in excess of 105°C. The improvement is characterized in that: (a) the catalyst is activated with a solution of a mixture of aluminum alkyl and alkoxy aluminum alkyl in inert solvent; and (b) the process is controlled by adjusting the ratio of aluminum alkyl to alkoxy aluminum alkyl in the mixture of (a). The aluminum alkyl is of the formula AlR n X3-n and the alkoxy aluminum alkyl is of the formula AlR' m OR"3-m. in which each of R, R' and R" is alkyl or aryl of 1-20 carbon atoms, X is halogen, n is 2-3 and m is 0-3.
Patent CA-2125502-C (CA)
Inventor: NAKAMURA DAIJIRO
IPC: F16B31/00
Filed: 1993-03-19
Granted: 1999-01-19
Abstract: A tightening screw in which a rotating ring is rotatably held on a flange-ring, a screw member having female threads in the same pitch as the male threads of the bolt to be fitted, with the female thread diameter formed larger than the male thread diameter, is rotably held eccentrically so that some of female threads of the screw member may be engaged with the male threads preliminarily, and the flange is fixed at the time of tightening so that the rotating ring may revolve the screw member, and thereby the decelerated rotation created in the screw member produces a large tightening force to increase the torque.
Patent CA-2125666-C (CA)
Title: Medicaments
Inventor: AKEHURST RACHEL ANN
IPC: A61K9/12
Filed: 1992-12-04
Granted: 2002-07-16
Abstract: This invention relates to aerosol formulations of use for the administration of medicaments by inhalation, in particular a pharmaceutical aerosol formulation which comprises particulate medicament and a fluorocarbon or hydrogen-containing chlor-ofluorocarbon propellant, which formulation is substantially free of surfactant and with the proviso that said medicament is other than salmeterol, salbutamol, fluticasone propionate, beclomethasone dipropionate or a physiologically acceptable salt or solvate thereof. A method of treating respiratory disorders which comprises administration by inhalation of an effective amount of a pharmaceutical aerosol formulation as defined is also described.
Patent CA-2131103-C (CA)
Title: Pyrido[1,2,3-d,e][1,3,4]benzoxadiazine derivatives
Inventor: JAETSCH THOMAS
IPC: C07D215/58
Filed: 1994-08-30
Granted: 2006-06-13
Abstract: The present invention relates to novel pyrido[1, 2, 3-d,e][1,3.4]benzoxadiazine derivatives of the formula (I) (see formula I) in which R1 is hydrogen or C1-C4-alkyl optionally substituted by hydroxyl or halogen, R2 independently of R1 is hydrogen or methyl, R3 is hydrogen or C1-C4-alkyl.      R4 is hydrogen, C1-C4-alkyl optionally substituted by hydroxyl, methoxy, amino, methylamino or dimethyl-amino, or (5-methyl-2-oxo-1, 3-dioxol-4-yl) -methyl, X1 ~is hydrogen or halogen and Z~is a radical of the structure (see formula I, II, III) in which R7 ~is hydrogen. hydroxyl, -NR10R11, hydroxymethyl, -CH2-NR10R11, carboxyl, methoxycarbonyl or ethoxycarbonyl, R10 being hydrogen, C1-C3-alkyl optionally substituted by hydroxyl, alkoxycarbonyl having 1 to 4 C atoms in the alkoxy moiety, or C1-C3-acyl, and R11 being hydrogen or methyl, R8 ~is hydrogen. linear or branched C1-C3-alkyl or cyclo-~ propyl, R9 ~is hydrogen or methyl, R6 ~is hydrogen or methyl, R5 ~is hydrogen, methyl or a radical of the structure -CH=CH-CO2R5', -CH2-CH2-CO2R5', -CH2-CO-CH3  or -CH2-CH-2-CN, R5' ~being methyl or ethyl, and B ~is -CH2-. O or a direct bond, to their preparation and to their use for the therapy or prophylaxis of bacterial infections.
Patent CA-2132473-C (CA)
Inventor: FISLI TIBOR
IPC: H04N1/401
Filed: 1994-09-20
Granted: 1999-11-16
Abstract: The present invention is a scanning system and a novel method for compensating for the variations in the output power of the beam from an A-O cell. The novel method involves varying the amount of drive current through the laser diode in such a fashion as to compensate for the loss of power due to diffraction inefficiencies. The amount of driving current is dependent upon the amount of power desired in the output beam from the A-O cell. The system and method of the present invention sets the output power from the A-O cell to a desired value. As the diffraction efficiency increases at other portions of the scan, the drive current is cut appropriately to compensate for the increased efficiency; thus keeping the output spot power at the desired value. Likewise, as the diffraction efficiency decreases at other portions of the scan, the drive current should be increased to compensate for the decrease in efficiency; thereby maintaining the desired value.
Patent CA-2142193-C (CA)
Title: Methods and apparatus for high-shear material treatment
Inventor: HOLL RICHARD A
IPC: B02C7/02
Filed: 1993-08-24
Granted: 2003-12-30
Abstract: High-shear treated materials are passed through a high-shear treatment zone which allows the coexistence of free supra-Kolmogoroff eddies larger than the smallest possible Kolmogoroff eddy diameter and forced sub-Kolmogoroff eddies smaller than this diameter. This zone includes a subsidiary higher-shear zone for suppressing these free eddies. The passage walls (40, 44, 102, 108) move relative io one another transverse to the flow to force the simultaneous development of supra-Kolmogoroff and sub-Kolmogoroff eddies while maintaining liquid films adherent to the passage surfaces. The movement produces only forced sub-Kolmogoroff eddies in the susidiary zone while maintaining a non-turbulent flow. Ultrasonic oscillations (52) may be appli-ed to cause elastohydrodynamic pressure and viscosity increases and/or production of smaller sub-Kolmogoroff eddies. One ap-paratus includes an inner cylinder rotatable (46) inside a hollow outer cylinder (38), another consists of two circular coaxial plates, and the rotational axis can be vertical or horizontal.
Patent CA-2144534-C (CA)
Title: A closure for sacks, bags or the like containers
Inventor: ANDERSEN CARSTEN
IPC: B65D81/05
Filed: 1992-09-14
Granted: 2004-02-10
Abstract: A closure (1) for sacks, bags or the like containers (3) with non-rigid walls.  The containers (3) are to be pressurised. The closure (1) comprises a filling nozzle (5) with a valve (7) and a flange (10).  The flange (10) has a cylindrical portion (11) and a plate-shaped portion (12). The plate-shaped portion (12) of the flange (10) is attached to the container (3). The filling nozzle (5) may be caused to sealingly engage the flange (10) by means of a snap connection (14), whereby the closure (1) is either completely open or closed. The snap connection (14) either retains the filling nozzle (5) in firm and tight engagement with the flange (10) or releases the filling nozzle (5) in relation to the flange (10).
Patent CA-2157710-C (CA)
Inventor: LANE JERRY A
IPC: B23B41/02
Filed: 1995-09-07
Granted: 1997-04-08
Abstract: A drilling apparatus for penetrating material includes an elongated rotary tool for boring an aperture in a workpiece by turning about a longitudinal axis and for moving along the longitudinal axis relative to the workpiece during a cutting operation.  The tool also includes a cutting head mounted on an end of an elongated, hollow shaft.  A fluid circulation system brings a flowable substance temporarily into engagement with the workpiece during the cutting operation.  The circulation system forces the flowable substance to flow in a passage defined by an external surface of the shaft and the workpiece toward the cutting head along an entire longitudinal length of the aperture being drilled.  The flowable substance exits the aperture through the hollow shaft after flushing material from the cutting head.
Patent CA-2158741-C (CA)
Inventor: MODY KIRIT C
IPC: C09J7/30
Filed: 1994-02-22
Granted: 2004-01-27
Abstract: A storage/dispensing assembly (10), e.g., a roll or stack, of loop fastener material such as is used in hook and loop fastening system comprising one or more multilayer sheets of loop fastener material (12) arranged such that the adhesive layer (18) of an overlying portion of the loop fastener material (12) is in direct contact with the loop layer (14) of an underlying portion of the loop fastener material (12). The loops are such that, when the overlying portion (12a) of the loop fastener material (12) is removed from the assembly (10), the loops of the underlying portion (14b) are presented in an engageable state. Also, a method for dispensing such loop material (12) from such assemblies (10) such that as the adhesive layer (18a) of the overlying portion (12a) is separated from the loops of the underlying portion (14b), the loops of the underlying portion (14b) are presented in an engageable state.
Patent CA-2166140-C (CA)
Title: Speech pitch lag coding apparatus and method
Inventor: SERIZAWA MASAHIRO
IPC: G10L25/90
Filed: 1995-12-27
Granted: 2002-05-07
Abstract: A pitch lag is extracted for each of a predetermined number of sub-frames. A predicted pitch lag for a pertinent sub-frame in the predetermined number of sub-frames is calculated on the basis of at least two pitch lags extracted for sub-frames other than the pertinent sub-frame or at least one pitch lag extracted for sub-frame other than the pertinent sub-frame and the preceding sub-frame by one sub-frame. A difference between the predicted pitch lag and the extracted pitch lag is then coded. Thus, an input speech signal pitch lag is coded for each sub-frame having a predetermined length.
Patent CA-2167321-C (CA)
Title: Reagents and methods for the detection and quantification of testosterone in fluid samples
Inventor: ADAMCZYK MACIEJ
IPC: C07K16/26
Filed: 1994-08-01
Granted: 2008-10-28
Abstract: The present invention discloses novel immunogens, antibodies prepared from such immunogens, and labeled reagents useful in immunoassays for the detection and quantification of testosterone in a test sample. Also disclosed are immunoassays using these reagents and methods for synthesizing these reagents. The immunoassays are preferably microparticle enzyme immunoassays (MEIAs) and fluorescence polarization immunoassays (FPIAs). Further discloded are novel starting materials for making the above novel immunogens and labeled reagents. Methods for making the novel immunogens and labeled reagents from the novel starting materials are also disclosed.
Patent CA-2168149-C (CA)
Title: Tank truck fuel delivery system having a selective dye injection system
Inventor: BELYEA STEPHEN A
IPC: G05D11/13
Filed: 1996-01-26
Granted: 2000-09-12
Abstract: A fuel delivery system for use in combination with a fuel delivery truck, said system having a dye additive injector for selectively adding a predetermined amount of dye into a main fuel delivery line, comprising:a dye additive storage tank, having an inlet and outlet, adapted to receive a dye additive; a dye flow line for passage of said dye additive out of the storage tank and into the fuel delivery line; and a means for selectively initiating and terminating the flow of said dye additive out of the storage tank, through the dye flow line and into the fuel delivery line.
Patent CA-2168173-C (CA)
Inventor: MARCARELLI HAWK R G
IPC: A45C1/06
Filed: 1996-01-26
Granted: 1998-09-29
Abstract: A wallet tether is removable from a wallet or the like to which it is secured,  to provide for use of the wallet in more formal situations where such a tether would be unsightly.   The tether includes an openable loop which is securable about a belt, belt loop, or other appropriate structure of the apparel of the user, and an eyelet which is secured to the wallet by a threaded fastener which is passed through a hole in the wallet periphery.          Thus, the wallet may be opened and the contents accessed without need to remove the tether from the wallet.  An elongate, flexible cord extends between the apparel attachment loop and the wallet attachment eyelet.   The cord may be non-metallic,  in order to reduce to a minimum the amount of metal in the device to preclude requirement  for  removal  for  passage  through  metal  detectors.          Preferably, the cord ends are secured to the openable loop and to the wallet attachment eyelet with crimp connections, for strength, durability, and economy of manufacture.
Patent CA-2170274-C (CA)
Title: Steerable open-lumen catheter
Inventor: WEBSTER WILTON W JR
IPC: A61B18/00
Filed: 1994-08-22
Granted: 2007-04-10
Abstract: A steerable catheter (10) comprises an elongated catheter body (12), a tip portion (14), first and second lumens (18, 20), a tightly wound coil (48), a puller wire (36), and a control handle.
Patent CA-2174954-C (CA)
Inventor: GELVIN STANTON B
IPC: C12N5/10
Filed: 1994-11-17
Granted: 2005-03-15
Abstract: Chimeric regulatory regions and gene cassettes based upon Agrobacterium tumefaciens opine synthase genes are provided for expressing foreign genes in plants. Various upstream activating sequences from opine synthase genes like the mannopine synthase and the octopine synthase genes are operably linked with protomers (or protomers plus activating sequences), both of which are then operably linked to the foreign gene. These regions and cassettes permit expression levels and patterns that could not be obtained previously.
Patent CA-2175043-C (CA)
Inventor: BACH LARS
IPC: B27N9/00
Filed: 1994-10-28
Granted: 2002-09-17
Abstract: Compositions comprising a finely divided material such as a cellulosic material and an amount of a latex containing magnesium oxychloride and or magnesium oxysulphate effective to impart water and fire resistance to the material are disclosed. Methods to make a water and fire resistant product are also disclosed.
Patent CA-2180547-C (CA)
Inventor: HESSMAN INGEMAR
IPC: B23C5/20
Filed: 1995-01-13
Granted: 2005-03-15
Abstract: Une plaquette de fraisage double face comprend deux surfaces (2) principales ou à copeaux, similaires et à plans parallèles, qui sont tournées de 90 ~ l'une par rapport à l'autre. Chaque surface principale comporte quatre coins tranchants opérants. En relation avec chaque coin tranchant, la plaquette comprend deux surfaces en biseau (5, 6) formant un angle par rapport au plan de la surface principale. Les quatre surfaces latérales (3) forment des angles par deux afin de permettre une géométrie de coupe positive. Les deux surfaces en biseau (5, 6) permettent de réduire considérablement la formation de copeaux au niveau des arêtes de la pièce à usiner.
Patent CA-2184340-C (CA)
Title: Coverslip holder
Inventor: FEDUN ORESTA N
IPC: B01L9/00
Filed: 1996-08-28
Granted: 1999-03-30
Abstract: A holder useful for supporting a coverslip above the bottom surface of a vessel includes a lower portion with a surface for supporting a coverslip and an upper portion with at least one protuberance. The holder has an opening intermediate the lower portion and the protuberance for receiving the coverslip.
Patent CA-2191110-C (CA)
Title: Method of forming multi-layer paint films, base coat composition and method of painting
Inventor: GAST ACHIM
IPC: C09D5/04
Filed: 1995-06-23
Granted: 2008-03-25
Abstract: To form multi-layer paint films which have a good finished appearance on objects which are to be painted, using an aqueous base coat composition.  An aqueous base coat composition which contains aqueous polyurethane resin and rheology control agent, the electrical conductivity measured in an aqueous solution of 3 % by weight concentration of which is 700 - 900 µS/cm, is painted and then the paint film is formed, a transparent top coat is painted on the base coat paint film obtained in this way, and the base coat and the top coat are baked at the same time.
Patent CA-2199263-C (CA)
Inventor: MERKLE STEFAN
IPC: B65D75/34
Filed: 1995-09-05
Granted: 2007-11-06
Abstract: The blister package for moisture sensitive pharmaceutical preparations has cavities (1) for the effective substance comprising preparations and cavities (2) for drying agents, whereby each cavity (1) for effective substance comprising preparations by a canal is connected with a cavity (2) for drying agents and the cover sheet (5) in the region of the cavities (2) for drying agents is thus enforced by an additional protection sheet (6) so that a withdrawing of the drying agent is excluded if usual means are applied.
Patent CA-2200246-C (CA)
Inventor: TANG XIAOMING
IPC: G01V1/48
Filed: 1997-03-18
Granted: 2006-07-11
Abstract: A method for modeling fracture zones in the sidewall of a borehole and for estimating the hydraulic conductivity thereof. The method first separates Stoneley wavefields into a directly-transmitted wavefield and a one-way (i. e.  downgoing) reflected wavefield from which the depth configuration may be determined. The separated wavefields are corrected for the effects of borehole irregularity due to such effects as washouts and the like by numerically modeling Stoneley wave propagation using caliper and slowness measurements. The hydraulic conductivity is estimated from parameters derived from synthetic and measured Stoneley-wave data across the fracture zone in combination with measurements of the borehole radius.
Patent CA-2206333-C (CA)
Title: Nouveaux derives de composes d'anthracycline, et preparations medicamenteuses les contenant
Inventor: AKUTSU TOMOKO
IPC: A61K31/704
Filed: 1996-09-26
Granted: 2006-03-14
Abstract: L'invention porte sur des di-, des tri- ou des tétramères de composés d'anthracycline, qui peuvent être obtenus par traitement par un alcali de composés d'anthracycline ayant une activité anticancéreuse, liant aisni chimiquement ces composés directement l'un à l'autre. L'invention concerne également des préparations médicamenteuses qui comprennent un complexe médicament/copolymère séquencé de poids moléculaire élevé, où le copolymère séquencé de poids moléculaire élevé, composé d'une partie structurelle d'un polymère hydrophile et d'une partie structurelle d'un polymère hydrophobe, forme un mélange dont l'enveloppe est constituée de la partie hydrophile; et où un di-, un tri- ou un tétramère d'un composé d'anthracycline est facultativement contenu dans le noyau hydrophobe avec d'autres substances. L'invention concerne enfin des préparations médicamenteuses qui comprennent un complexe médicament/copolymère séquencé de poids moléculaire élevé, où un copolymère séquencé de poids moléculaire élevé, composé d'une partie structurelle d'un polymère hydrophobe et d'une partie structurelle d'un polymère hydrophile, forme un mélange dont l'enveloppe est constituée de la partie hydrophile; et où un agent anticancéreux d'anthracycline est contenu dans le noyau hydrophobe. Une heure après une administration intraveineuse à des souris CDF1, un agent anticancéreux d'anthracycline du plasma atteint un niveau supérieur ou égal à 10 (en % de la dose/ml de plasma de souris), si le niveau de l'agent anticancéreux d'anthracycline présent dans la préparation administrée est de 100. Ces préparations médicamenteuses ont un effet puissant, et n'ont qu'une toxicité faible.
Patent CA-2209680-C (CA)
Inventor: KIM IN KI
IPC: B61L23/00
Filed: 1996-11-07
Granted: 2000-10-24
Abstract: The present invention relates to a position recognition apparatus for personal rapid transit. The personal rapid transit system comprises a chassis (40) for moving at the inside of a guideway (10) and a chamber for passengers being mounted on the chassis (40) at the outside of the guideway (10). The chassis (40) is provided with guidance wheels (41 and 42), electric linear motors (44a and 44b), a switching device, brakes, a control apparatus (70) and electric power supply devices. Bar code scanners (60a and 60b) are installed at both sides of the chassis (40) in the inside of the guideway (10). Bar codes include figures and letters indicating sections and positions at a certain interval on the guideway (10), and are printed on bar code members (50a and 50b) having a predetermined width which is made of plastics. The plastic bar code members (50a and 50b) on which the same bar codes are printed are attached to both sides of the guideway (10). The scanners (60a and 60b) recognize positions and speed of the vehicles (80) from bar codes which are arranged opposite to the scanners (60a and 60b) fixed at the chassis (40) of the vehicles (80), and transmit the data to a computer which is installed adjacent to the scanners (60a and 60b) for controlling the vehicles (80). The computer controls the driving motors of the vehicles (80) to thereby provide effects of performing accurate interval maintenance and preventing in advance rear-end collision and collision between vehicles under the control of interval and speed.
Patent CA-2215470-C (CA)
Title: Heterocyclic diaryl compounds, pharmaceutical and cosmetic compositions containing same, and uses thereof
Inventor: DIAZ PHILIPPE
IPC: A61Q19/08
Filed: 1997-02-04
Granted: 2004-03-30
Abstract: Novel heterocyclic diaryl compounds of general formula (I), and the use thereof in pharmaceutical compositions for use in human or veterinary medicine (particularly for dermatological, rheumatic, respiratory, cardiovascular and ophthalmological disorders), or in cosmetic compositions, are disclosed.
Patent CA-2220727-C (CA)
Title: Acier resistant a l'erosion par cavitation
Inventor: MENON RAVI
IPC: C22C38/52
Filed: 1996-05-09
Granted: 2001-07-24
Abstract: La présente invention concerne un alliage résistant à l'érosion par cavitation qui comporte de 10 à 40 % environ en poids d'au moins un générateur de carbure contenant du chrome, de 5 à 15 % en poids de cobalt, de 5 à 15 % en poids de manganèse, de 3,5 à 7,0 % en poids de silicium, de 1,8 à 4,8 % en poids de nickel, de 0,15 à 3,5 % en poids de carbone et de bore, jusqu'à 0,3 % en poids d'azote, le reste étant constitué de fer auquel s'ajoutent des impuretés.