baber/WOPTO huggingface dataset:
Patent CA-2212705-A1 (CA)
Title: Variable displacement compressor
Inventor: SUITOU KEN
IPC: F04B49/00
Filed: 1997-08-11
Abstract: A variable displacement refrigerant compressor is disclosed which is of a type that comprises a housing forming therein a crankcase, a suction chamber and a suction passage communicable with the suction chamber, a tiltable swash plate disposed in the crank case for varying the displacement of the compressor by changing the stroke of a working piston in accordance with the magnitude of cooling load, a cylinder block having formed axially therethrough a central bore for accommodating therein a shutoff member in the form of a slidable spool for shutting off the fluid communication between the suction chamber and the suction passage, a drive shaft supported it the crankcase for driving the swash plate at a variable angle, a radial bearing disposed in the central bore for supporting the rear end portion of the drive shaft.  According to the invention, it is so arranged that at least the peripheral surface area of the front end surface of the cylinder block surrounding the front opening of the central bore is positioned ahead of the center of the radial bearing which is defined by an imaginary plane extending perpendicularly to the drive shaft axis and passing through the mid point of the radial bearing as determined along the drive shaft.
Patent CA-2213922-A1 (CA)
Inventor: LUCKEVICH LYDIA
IPC: C04B11/00
Filed: 1997-08-26
Abstract: Disclosed are pliant modeling compositions that cure upon immersion in water,  but that do not cure in the presence of ambient humidity   The compositions comprise an organic binder and a hydrating species bound within the organic binder.   Preferably,  the organic binder is petrolatum, and the hydrating species comprises a mixture of plaster and cement.   In accordance with the preferred embodiments  of  the  present  invention,   the  modeling compositions further include a co-solvent, a surfactant, a filler, a clay, a UV stabilizer, a colorant, a workability enhancer,   and  optionally  a  bittering  agent  and  a preservative.   The compositions are initially pliant,  and thus suitable for sculpting.   After the compositions have been  sculpted,   for  example,   into  a  sculpture,   the compositions may be cured by immersion in water to form a solid,  rigid model.   The  compositions  are  resistant  to cracking upon curing.
Patent CA-2218201-A1 (CA)
Title: Press arrangement
Inventor: MESCHENMOSER ANDREAS
IPC: D21F3/02
Filed: 1997-10-14
Abstract: Press arrangement for a machine for treating a fibrous pulp sheet. The press arrangement includes a shoe press roll having a flexible press sleeve, a mating roll having a mating roll axis, and a press nip extended in a run direction of the fibrous pulp sheet and formed between the shoe press roll and the mating roll. The press arrangement includes a non-rotating carrier substantially extending across a machine width inside the flexible press sleeve, a press unit including at least one press shoe supported on the non-rotating carrier via at least one associated force element. The press unit exerts a force against the flexible press roll sleeve. The flexible press sleeve is arranged to circulate around the non-rotating carrier and to be guided around the at least one press shoe in a press nip area. A portion of the flexible press sleeve, located outside of the press nip area, circulates in a substantially circular-cylindrical path around a sleeve axis. A center plane of a resulting force exerted by the press unit is positionally offset a distance in the run direction from a plane including the mating roll axis and the sleeve axis, and the press shoe is positioned substantially symmetrical to the plane including the mating roll axis and the sleeve axis.
Patent CA-2218526-A1 (CA)
Title: Structure-based designed herbicide resistant products
Inventor: KAKEFUDA GENICHI
IPC: G16B15/20
Filed: 1996-04-19
Abstract: Disclosed herein are structure-based modelling methods for the preparation of acetohydroxy acid synthase (AHAS) variants, including those that exhibit selectively increased resistance to herbicides such as imidazoline herbicides and AHAS inhibiting herbicides. The invention encompasses isolated DNAs encoding such variants, vectors that include the DNAs, and methods for producing the variant polypeptides and herbicide resistant plants containing specific AHAS gene mutations. Methods for weed control in crops are also provided.
Patent CA-2219764-A1 (CA)
Inventor: TOUJI HITOSHI
IPC: A47K11/02
Filed: 1997-02-28
Abstract: A non-draining type human waste disposal method in which water is not discharged to the outside of the system. The residue-separated human waste, sludge from a septic tank or a mixture thereof is brought into contact with a pulse combustion gas introduced from a pulse combustor, which is provided at a top portion of a vertically extending cylindrical drying chamber, thereinto in the downward direction, and the human waste is thereby separated into dry powder and vapor under the conditions of a drying chamber temperature of 120~150 ~C, the dry powder being taken out from a bottom portion of the drying chamber, the vapor-containing combustion waste gas being taken out from a side surface of the drying chamber. The vapor-containing combustion waste gas is subjected to dust collection with the temperature thereof maintained at 120~150 ~C, and then to deodorization, and the resultant gas is discharged to the atmospheric air. In another method, combustion exhaust gas containing dry powder and vapor-containing combustion waste gas is taken out from the bottom portion of the drying chamber, and introduced into an incinerator with the temperature of the product maintained at 120~-150 ~C. A fuel and combustion air are supplied to the incinerator to burn the dry powder and odor components entrained in the vapor-containing combustion exhaust gas. The resultant product is subjected to dust collection, and then discharged to the atmospheric air.
Patent CA-2223369-A1 (CA)
Inventor: TSUZAKI NOBUKO
IPC: C08G63/06
Filed: 1997-12-03
Abstract: The present invention provides a process for producing polyhydroxycarboxylic acids which comprises subjecting at least one hydroxycarboxylic acid or oligomer thereof to polycondensation in the presence of an alkali metal compound, an alkaline earth metal compound, or a compound of a metal of Group IIIb of the periodic table.  The polyhydroxycarboxylic acids obtained by the process have a weight-average molecular weight of 30,000 or above and are useful as biodegradable plastics for food-wrapping films, drug delivery systems, etc.
Patent CA-2224309-A1 (CA)
Title: Multivalent bovine coronavirus vaccine and method of treating bovine coronavirus infection
Inventor: KAPIL SANJAY
IPC: C12N15/11
Filed: 1996-06-07
Abstract: New purified and isolated bovine coronavirus (BCV) types (II and III) are described which can be used to create new modified live vaccines for administration to cattle in order to confer immunity against virulent wild-type bovine coronavirus infection. Preferably, a multivalent modified live vaccine is provided for oral-nasal administration which includes the known Type I virus and the new Types II and III virus. Hygromycin B has also demonstrated to be effective for suppressing replication of the majority of BCV isolates tested and thus can be administered to cattle as a treatment for the chronic disease and to suppress shedding of hygromycin B-sensitive BCV in cattle feces.
Patent CA-2225122-A1 (CA)
Inventor: BUTT DAVID J
IPC: F02M27/02
Filed: 1997-12-18
Abstract: A fuel modification device comprising a casing having an inlet fitting, an outlet fitting and a flow axis between the inlet fitting and the outlet fitting. The casing encloses a plurality of catalytic pellets held in layers by at least two spaced-apart Monel screens positioned perpendicularly relative to the flow axis. The casing also encloses at least one magnet positioned adjacent to and without touching, one of the Monel screens. The magnet contains at least one element from a group of elements comprising strontium and barium. The catalytic pellets comprises the following composition percentages by weight: 2-7% bismuth; 3-7% mercury; 70-80% tin; and 15-25% antimony. There is further provided a method for treating hydrocarbon fuel within the device wherein an electrolytic action is caused to occur between the fuel and the magnet for causing some of the oxygen molecules in the water impurities to separate from the fuel impurities and to bond to the hydrocarbon molecules as oxygenates. There is also provided a method for freeing radicals of hydrogen from the water impurities and for causing some of the radicals of hydrogen to join hydrocarbon chains within the fuel for forming new and shorter hydrocarbon chains.
Patent CA-2227784-A1 (CA)
Inventor: GRAY COLIN MAURICE
IPC: C12N5/071
Filed: 1996-07-26
Abstract: Des ostéoblastes sont mis en culture sur une surface présentant une topographie adaptée pour faciliter ou stimuler la formation des os, cette formation osseuse pouvant être ainsi dirigée sur des sites prévisibles et désirés. Dans une étude visant à déterminer les effets d'un médicament sur la formation osseuse, des ostéoblastes sont mis en culture dans un sillon d'approximativement 350 microns de large et 250 microns de profondeur. La surface de la formation osseuse peut être créée sur une lame de culture ou sur un implant ou transplant prothétique.
Patent CA-2233597-A1 (CA)
Title: High efficiency protection displays having thin film polarizing beam-splitters
Inventor: DOBROWOLSKI JERZY A
IPC: H04N9/31
Filed: 1997-08-13
Abstract: A projection display system includes a thin film polarizing beam splitter/combiner has first and second light transmissive substrate in the form of prisms and a plurality of thin film layers disposed between the prisms. The thin film layers have predetermined thicknesses and refractive indices which allow unpolarized incident light to be separated into s-polarized and p-polarized light beams. Both frustrated total internal reflection and thin film interference are simultaneously employed to allow s-polarized light to be transmitted and p-polarized light to be reflected over a wide range of wavelengths and angles of incidence. The device further includes two spatial light modulators for encoding an image to be projected. By providing a different signal to each spatial light modulator, a three-dimensional display results.
Patent CA-2234188-A1 (CA)
Title: Heat treatment of ziegler-natta catalysts to increase activity in solution polymerization process
Inventor: JABER ISAM
IPC: C08F10/00
Filed: 1998-04-07
Abstract: The present invention provides a novel Ziegler-Natta catalyst preparation method to substantially increase the activity in homo- and co-polymerization of ethylene with alpha olefins in high temperature solution process. The method utilizes mixing and heating of catalyst components leading to substantial increase in the catalyst activity by about 60%.
Patent CA-2234712-A1 (CA)
Title: Process and device for treating textile substrates with supercritical fluid
Inventor: BORK MICHAEL
IPC: D06B5/12
Filed: 1996-07-11
Abstract: The present invention relates to a process and device for treating textile substrates with superficial fluid. The textile substrates take the form of spools of yarn or rolled webs and supercritical fluid flows over and/or through them substantially perpendicularly to their spool or winding axis.      The treatment temperature during the treatment period assumes various values. During the treatment period, the treatment temperatures are set by at least two functions of the treatment time and supercritical fluid is conditioned differently at the time the cycle function takes effect.
Patent CA-2237556-A1 (CA)
Title: Absorbent articles having soft, strong nonwoven component
Inventor: DOBRIN GEORGE CHRISTOPHER
IPC: D04H1/46
Filed: 1996-11-08
Abstract: A nonwoven that is exceptionally soft yet sufficiently strong for use in absorbent articles is disclosed. The soft, strong nonwoven includes fibers comprising polyethylene, at least a portion of which are consolidated. The soft, strong nonwoven has a cross-machine direction tensile strength of at least about 300 g/in and a cross-machine direction elongation at break of at least about 40 %. The soft, strong nonwoven is preferably formed by permanently stretching an inelastic base nonwoven in the cross-machine direction. The preferred base nonwoven has certain properties which allow it to have sufficient strength after stretching, while being exceptionally soft, such that the resultant permanently stretched, soft, strong nonwoven is particularly suitable for use as a topsheet or a backsheet component in disposable absorbent articles. More specifically, the preferred base nonwoven has a cross-machine direction elongation at break of at least about 175 % and a cross-machine direction tensile strength of at least about 400 g/in. A  particularly preferred base nonwoven also has a filament denier of from 1.5 to 10, a basis weight of from 15 to 30 gsy, and, for thermal point bonded nonwovens, a consolidation area of from 4 to 40 %.
Patent CA-2240388-A1 (CA)
Inventor: POZZO MARK J
IPC: C07J31/00
Filed: 1996-12-11
Abstract: Multiple novel reaction schemes, novel process steps and novel intermediates are provided for the synthesis of epoxymexrenone and other compounds of formula (I), wherein: -A-A- represents the group -CHR4-CHR5- or -CR4=CR5-; R3, R4 and R5 are independently selected from the group consisting of hydrogen, halo, hydroxy, lower alkyl, lower alkoxy, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, cyano, aryloxy; R1 represents an alpha-oriented lower alkoxycarbonyl or hydroxyalkyl radical; -B-B- represents the group -CHR6-CHR7-or an alpha- or beta- oriented group of formula (III), where R6 and R7 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, and R8 and R9 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, or R8 and R9 together comprise a carbocyclic or heterocyclic ring structure, or R8 or R9 together with R6 or R7 comprise a carbocyclic or heterocyclic ring structure fused to the pentacyclic D ring.
Patent CA-2242323-A1 (CA)
Title: Fermentation control
Inventor: VAN URK HENDRIK
IPC: C12M1/36
Filed: 1997-03-12
Abstract: A process of culturing a microorganism in a culture medium in which process the addition of feed medium is controlled by using the production of a by-product as a measure of the culture conditions, characterised in that the by-product is an electrically charged metabolite produced by the microorganism, and in that the production of the metabolite is monitored by measuring the conductance of the culture medium. The metabolite may be acetate and the microorganism may be yeast which is genetically engineered to produce a desired polypeptide.
Patent CA-2242979-A1 (CA)
Inventor: STRECK HANS-DIETER
IPC: B26F1/02
Filed: 1998-07-14
Abstract: An apparatus for punching transversely throughgoing coaxial holes in spaced walls of a workpiece has a holder supporting the workpiece and an outer tool part formed with a pair of transverse bores and displaceable between an advanced position engaged over the workpiece on the holder and outwardly flanking the walls and a retracted position spaced from the holder. An inner tool part formed with a transversely throughgoing bore is displaceable in the advanced position of the outer tool part between an advanced position engaged between the walls and with its bore coaxial with the bores of the outer tool part and a retracted position with its bore spaced from the workpiece in the holder. The outer tool part is formed with a waste passage aligned with the inner-part bore in the retracted position of the inner part. Respective punches are axially displaceable in the outer-part bores in the advanced positions of the tool parts to punch a respective piece from the respective wall and push the punched-out piece into the bore of the inner tool part. A knockout element can be pushed in the retracted position of the inner tool part into the inner-part bore by an actuator to push the piece therein into the waste passage.
Patent CA-2243663-A1 (CA)
Title: Inhalation device
Inventor: ABRAMS ANDREW L
IPC: A61M15/00
Filed: 1997-01-24
Abstract: An inhaler that utilizes vibration to facilitate suspension of powder into a gas is provided. One embodiment of the inhaler includes a piezoelectric vibrator for vibrating the powder. A controller is provided for controlling supply of actuating electricity to the vibrator so as to cause the powder to vibrate in such a way as to optimally suspend at least a portion of the powder into the gas. The controller may include a user-actuable control for permitting the user to select the vibration frequencies and/or amplitudes for optimally suspending in the gas the type of powder currently being used in the inhaler.
Patent CA-2244157-A1 (CA)
Title: Photodetecteur quatre quadrants
Inventor: RAMER DAVID P
IPC: G01B11/26
Filed: 1997-01-22
Abstract: La présente invention concerne un photodétecteur quatre quadrants (10) fonctionnant selon un principe d'occultation structurelle, ce qui permet d'en améliorer la précision. La structure de ce détecteur comporte des enceintes (28) qui permettant d'améliorer sa réponse de détection pour la lumière pénétrante (11) dont l'angle d'incidence est proche de l'horizon. Ces enceintes assurent la division en quatre quadrants d'une cavité de réflexion diffuse (10). Ce détecteur quatre quadrants (10) est capable de déterminer l'azimut et l'élévation de la source lumineuse n'importe où dans les limites d'un secteur d'hémisphère ou de sphère.
Patent CA-2245750-A1 (CA)
Title: Charge allocation in a multi-user network
Inventor: LYNCH-AIRD NICOLAS JAMES
IPC: H04L12/14
Filed: 1997-03-26
Abstract: A communication network inlcudes a communication monitoring point arranged to monitor user identifiers in source/destination identifier fields to determine the charging scheme.
Patent CA-2247038-A1 (CA)
Title: Cloning and expression of the gene encoding thermoanaerobacter ethanolicus 39e secondary-alcohol dehydrogenase and enzyme biochemical characterization
Inventor: ZEIKUS JOSEPH G
IPC: C12N15/00
Filed: 1997-02-27
Abstract: The adhB gene encoding Thermoanaerobacter ethanolicus 39E secondary-alcohol dehydrogenase (2-Adh) was cloned, sequenced, and expressed in Escherichia coli. Both the nucleic acid sequence coding for the enzyme and the amino acid sequence are reported. The purified recombinant enzyme is homotetrameric consisting of 37.7 kDa subunits and optimally active above 90°C with a half-life of approximately of 1.7 h at 90°C. The enzyme has a substantial preference in the oxidation of secondary alcohols over primary alcohols.
Patent CA-2247579-A1 (CA)
Title: Disposable diaper
Inventor: KUMASAKA YOSHINORI
IPC: A61F13/494
Filed: 1998-09-16
Abstract: A  disposable  diaper  includes  a  liquid-permeable topsheet, a liquid-impermeable backsheet and an absorbent core disposed therebetween.  The core has its transversely opposite side edges curved inwardly of the core.  Portions of the topsheet and the backsheet extending outward beyond the side edges of the core are put flat and bonded together.          Such extensions are folded inwardly of the diaper along straight folding lines extending longitudinally outside the respective curved side edges of the core so as to form a pair of  leak-proofing  cuffs.    First  and  second  elastically stretchable/contractile members are bonded under appropriate tension to the respective leak-proofing cuffs along its inner side edges and the straight folding lines.
Patent CA-2247926-A1 (CA)
Inventor: MOORE KATERI A
IPC: A61K38/00
Filed: 1997-03-03
Abstract: Cette invention concerne un procédé permettant d'inhiber la différentiation de cellules souches. La différentiation des cellules souches peut être inhibée en mettant ces cellules souches en contact avec une quantité suffisante de protéines de type delta (dlk).
Patent CA-2251320-A1 (CA)
Title: Non-uniform multi-beam satellite communications system and method
Inventor: PONTUAL ROMULO
IPC: H04B7/185
Filed: 1998-10-19
Abstract: A satellite broadcast system and method, particularly useful for television signals, allows for local as well as nationwide broadcast service by allocating greater satellite resources to the more important local service areas. This is accomplished by broadcasting a non-uniform pattern of local service beams and designing the system to establish different service area priorities through factors such as the individual beam powers, sizes, roll-off characteristics and peak-to-edge power differentials. Frequency reuse is en-hanced by permitting a certain degree of cross-beam interfer-ence, with lower levels of interference established for the more important service areas.
Patent CA-2251963-A1 (CA)
Title: Latch drive assembly
Inventor: FORTUNE GEOFFREY JAMES
IPC: E05C1/16
Filed: 1997-05-29
Abstract: A latch drive set includes a rotatable drive member (40) having means (50, 53) for engaging the drive member with spindle, for rotating the spindle about an axis to operate a latch unit, and a mounting plate (20) for rotatably supporting the drive member with respect to the latch unit so that the drive member (40) at least partly overlies the mounting plate (20) in the direction of the axis. Means (81, 83) is provided on the drive member for coupling the drive member to a handle unit in an annular zone extending about the axis so that the handle unit at least partly overlies the drive member in the direction of the axis when so coupled. In situ, rotation of the handle unit is effective to rotate the spindle via rotation of the drive member. Also disclosed are a privacy adaptor set and a lever handle arrangement.
Patent CA-2252698-A1 (CA)
Title: Method for the administration of health care employing a computer generated model
Inventor: SMITH JOE LOWELL
IPC: G16H50/50
Filed: 1997-04-23
Abstract: A method for the administration of health care resources (18, 26, 28, 30, 32, 34, 44) within a health care facility on a per procedure basis (12, 14, 16, 22, 24) employing a computer generated model (10).
Patent CA-2253236-A1 (CA)
Inventor: NEELY CONSTANCE F
IPC: G01N33/577
Filed: 1997-05-27
Abstract: Methods for determining levels of endotoxin in a sample are provided. These methods are useful in the diagnosis of septicemia. Kits for the detection of endotoxin are also provided.
Patent CA-2253690-A1 (CA)
Title: Method and apparatus for measuring the degree of treatment of a medium by a gas
Inventor: CONRAD WAYNE ERNEST
IPC: C02F1/78
Filed: 1998-11-09
Abstract: A method and apparatus for monitoring the degree of treatment of a material by a reactive fluid is monitored by reacting the unreacted fluid to produce heat and measuring the heat so produced.
Patent CA-2255447-A1 (CA)
Title: Percutaneous absorption type preparation
Inventor: OTSUKA SABURO
IPC: A61P11/08
Filed: 1998-12-10
Abstract: A percutaneous absorption type preparation comprising a support and a plaster layer laminated thereon, which comprises tulobuterol in a proportion of not less than 5 wt% in a dissolution state and an adhesive. The preparation of the present invention retains the active ingredient, tulobuterol, at a high concentration in a complete dissolution state in the plaster layer. Therefore, it is free of time-course changes in drug releasing property and adhesive property caused by precipitation of drug crystals with the lapse of time. The inventive preparation is superior in percutaneous absorption of the drug, particularly percutaneous absorption rate at the initial stage of the administration; shows superior duration of efficacy by maintaining effective blood concentration for a long time; and is associated with less changes with the lapse of time in adhesive property such as adhesion to the skin.