baber/WOPTO huggingface dataset:
Patent CA-2074022-C (CA)
Title: Sand control with resin and explosive
Inventor: DEES JOHN M
IPC: C09K8/56
Filed: 1992-07-16
Granted: 2002-09-03
Abstract: A method for diverting resins and other treating fluids used for sand control in wells drilled through unconsolidated subterranean formations is provided.      Explosives placed in the wellbore in proximity to the treating solutions are actuated to divert the solutions through all perforations in the casing of the well and allow sand-free production of fluids through the well.
Patent CA-2075253-C (CA)
Title: Method and apparatus for measuring deviation
Inventor: NOSE NORIYUKI
IPC: G03F7/20
Filed: 1992-08-04
Granted: 1999-08-24
Abstract: A method and apparatus for measuring the deviation between elements on an object includes the steps of; and devices for performing the steps of forming at least a first physicooptical element on the object: forming at least a second physicooptical element on the object, the first and second physicooptical elements having lens functions; projecting light beams onto the first and second physicooptical elements on the object and detecting the incident positions of light beams travelling from the first and second physicooptical elements, having been subjected to the lens functions of the first and second physicooptical elements, on a predetermined surface; and detecting the deviation between the first and second physicooptical elements on the object from the relationship between the detected incident positions of the light beams.
Patent CA-2079085-C (CA)
Title: Meter bypass swivel connector
Inventor: RUSSELL JIM L
IPC: F16L55/07
Filed: 1992-09-24
Granted: 1997-05-27
Abstract: A meter bypass swivel connector is molded with a 1/4" hole located within its upper body portion.   A ball check screen or guard separates its upper body portion from its lower body portion to prevent anything from obstructing the customer's service line.  A ball check assembly, including a ball, seat, and base, is snapped or screwed into the lower portion of the meter bypass swivel connector.  The ball check is configured to allow an uninterrupted or unobstructed flow of gas through the customer's line with pressure as low as 5" of water column.  The lower body portion is surrounded by a flange and a swivel nut rests on a metal backup ring disposed on the flange.  The metal ring protects the nonferrous swivel connector from the metal meter nut when the swivel is attached to the gas meter connection.  A swivel gasket installed in the field "seals" the meter bypass swivel connector to the gas meter when the meter nut is tightened to the meter.  A one-way coupler is attached in the hole in the meter bypass swivel connector in such a manner that the possibility of a gas leak would be minimal or impossible.  The coupler is designed to allow rapid connection of a supplemental gas source through the coupler and the upper portion of the body into the customer's gas line.  The connection on the coupler for the supplemental gas flow includes a tamper-resistant, plastic removable plug.  Tampering with the protective cap will result in visible evidence to the gas company of the tampering.  In any event, any gas taken from the one-way coupler would be measured gas.  The meter bypass swivel connector is preferably an  injection  molded,  nonferrous,  electrically  insulating device.  Ultraviolet rays, ambient temperatures, humidity and odorants (injected by gas companies into natural gas systems for purposes of leak detection) will not affect its integrity. It is reusable, lightweight, and paintable.
Patent CA-2079612-C (CA)
Title: Portable programmer for hearing aids
Inventor: ARNDT HORST
IPC: H04R25/00
Filed: 1992-10-01
Granted: 1999-08-17
Abstract: A programmer for programming hearing aids which have a controller for setting the audio response parameters of the hearing aid, and which can be fitted in a patient's ear. The programmer comprises data entry means, a display unit, a microcontroller and a communication interface. The hearing aids are coupled to the programmer either using a cable or through an infrared link using a lapel unit which has a short y-cable to the hearing aids. The fitter uses the data entry means, i.e. a keypad, to program the parameters, which are then shown on the display unit. The display unit is divided into right and left ear display fields. Each display field includes a number of bar charts for displaying the values of the parameters. The display also includes an icon to indicate the type of hearing aid fitting, i.e. binaural or monaural, and an icon to indicate the hearing aid currently being programmed, i.e. right or left. The programmer also allows two sets of parameters to be stored for each ear, and then compared monaurally or binaurally.      In the preferred embodiment, both the programmer and the lapel unit are battery powered and portable. The programmer is designed to be hand-held and operated with one hand, while the lapel unit can be hung around the patient's neck.
Patent CA-2082185-C (CA)
Title: Protease catalyzed treatments of lignocellulose materials
Inventor: POKORA ALEXANDER R
IPC: A61K9/26
Filed: 1992-11-05
Granted: 2004-01-20
Abstract: Wood chips or wood pulps are treated at any stage of the papermaking process but preferably prior to delignification or bleaching with a protease enzyme to enhance fibrillation and/or the efficiency of delignification or bleaching. The proteases, pepsin and papain, promote the removal of lignin from wood, possibly through cleavage of the cell wall protein matrix. Wood pulps treated with proteases exhibit a higher degree of fibrillation than pulps not treated with proteases. Furthermore, the protease treatment produces a flatter fiber which improves paper smoothness derived from these fibers. The protease treatment may be combined sequentially or by admixture with treatment with a xylanase or ligninase.
Patent CA-2085485-C (CA)
Inventor: LEVER GORDON
IPC: B01J20/32
Filed: 1991-07-03
Granted: 1996-07-02
Abstract: The invention relates to alumina-containing acid adsorbents and process for producing same.  Activated alumina has been used as an acid adsorbent, but it is not very long-lived.  The adsorbents of the invention comprise activated alumina having inter-nal pores and an amorphous alkali (preferably sodium) aluminum silicate coating the inner surfaces of the pores.  The ratio of Si:Al in the amorphous alkali material is preferably 0.25-100:1 by weight.  A process for producing such adsorbents comprises treating activated alumina with a solution of an alkali metal silicate followed by an alkali metal aluminate, and forming agglom-erates of the treated alumina at a temperature below about 90 °C, aging the agglomerates at a temperature in the range of 20 - 90 °C, and calcining the aged agglomerates at a temperature in the range of 200 - 500 °C.  The adsorbent can be used to remove acid-ic materials from gases and liquids during industrial processes and they have a greater effective life than activated alumina itself.
Patent CA-2086865-C (CA)
Title: Motor vehicle inertia and hill holding braking mechanism
Inventor: STOUT DONALD M
IPC: F16D65/14
Filed: 1993-01-07
Granted: 2001-12-25
Abstract: An improved braking mechanism (100) is provided for use in conjunction with a change gear transmission (50) that is selectively engagable with a vehicle engine (4) by a clutch (3). Mechanism (100) has a piston (22) slidably received in a primary fluid chamber (34) that is operative to cause mechanism (100) to act as an inertia brake upon establishment of a first set of predetermined operating conditions. Piston (22) is also slidably received in a secondary fluid chamber (36) that is operative to cause mechanism (100) to act as a hill holding brake upon establishment of a second predetermined set of operating conditions.
Patent CA-2095535-C (CA)
Title: Article carrying system
Inventor: DIXON MICHAEL
IPC: B60R9/045
Filed: 1991-06-13
Granted: 2002-05-28
Abstract: An improved article carrying system for a vehicle having a pair of generally flat rails (22) directly mounted to the vehicle surface, each rail being characterized by an upstanding wall (30) with a sideway facing track (34) formed therein and a ridge (36) spaced from and parallel to the wall. A slider (24) for mounting article support and securing members has a pedestal (38) which rests on the flat surface of the rail and is captured in the track between the wall (30) and the ridge (36). A grip bas (42) having a plurality of spaced-apart locking tabs (48) is swingably mounted to the slider (24) whereby when the grip bar (42) overlies the rail, the locking tabs (48) on the grip bar (42) lockingly engage the protrusions (40) on the rail, and when the grip bar (42) is swung cross-wise to the rail, the locking tabs (48) clear the protrusions (40) to allow the slider to be moved along the rail.
Patent CA-2107150-C (CA)
Title: Nouveaux derives chromeniques a chaine laterale trienique, leur procede de preparation et les compositions pharmaceutiques les renfermant
Inventor: BRION JEAN-DANIEL
IPC: C07D405/04
Filed: 1993-09-28
Granted: 2001-10-23
Abstract: Composés de formule générale (I) :  dans laquelle : -R1, R2, R3, R4, identiques ou différents, sont choisis parmi: - un atome d'hydrogène, - un atome d'halogène, - un radical phényle, - un radical adamantyle, - un radical hétérocyclique, contenant 5 ou 6 atomes, choisi parmi les radicaux furyle, pyrrolyle, pyrrolidinyle, thiényle, pyridyle, pipéridyle, indolyle et quinolyle, - un radical R1 et - un radical OR1, - R1 étant un groupement alkyle, linéaire ou ramifié contenant de 1 à 6 atomes de carbone, éventuellement substitué par un ou plusieurs groupements hydroxy, et/ou par un ou plusieurs atomes d'halogènes, - R5, R6 et R7, identiques ou différents, sont choisis parmi un atome d'hydrogène et un groupement     alkyle linéaire ou ramifié contenant de 1 à 6 atomes de carbone, -R8 est choisi parmi les groupements C(O)OR9,  P(O)(OR9)2 et CONHR10 dans lesquels R9 est un atome d'hydrogène, un groupement alkyle linéaire ou ramifié contenant de 1 à 6 atomes de carbone ou un résidu glucuronide, et R10 représente un atome d'hydrogène, un groupement alkyle linéaire ou ramifié contenant de 1 à 6 atomes de carbone ou un radical phényle ou naphtyle, la liaison indéfinie portant R8 étant une liaison simple conférant une configuration E ou Z à la double liaison qui la supporte, avec la restriction quelorsque R5 représente l'hydrogène et R6 et R7 représentent chacun le groupement méthyle, et R8 représente le groupement C(O)OR9 tel que précédemment défini, alors au moins un des substituants  R1, R2, R3 ou R4 est différent de l'hydrogène, d'un halogène, d'un radical R', et d'un radical OR', R' étant tel que défini précédemment.
Patent CA-2107230-C (CA)
Title: Electrosurgical generator and suction apparatus
Inventor: BILLINGS R GAIL
IPC: A61B18/14
Filed: 1992-03-18
Granted: 1996-06-18
Abstract: An electrosurgical unit (10) which combines an electrosurgical power generator and a filtered smoke removal system into a single compact instrument comprising an electrosurgical generator module (12) and a smoke removal module (14).  The electros-urgical generator module (12) is designed specifically to accommodate an electrosurgical tool (73) during LEEP or LLETZ proce-dures. The electrosurgical generator module (12) provides power to the electrosurgical tool (78) at a predetermined level. The smoke removal module (14) removes and filters smoke from the site of the electrosurgery.  A switching circuitry (60) activates the smoke removal module (14) substantially simultaneous to the activation of the electrosurgical tool (78) so that the smoke removal module (14) is activated automatically whenever the electrosurgical tool is activated. The switching circuitry (60) also delays the deactivation of the smoke removal module (14) after the electrosurgical tool (78) has been deactivated.  The electrosurgical tool (78) alternatively can be connected, concentrically or in parallel, to a smoke evacuation tube (80) in communication with the smoke removal module (14).
Patent CA-2125003-C (CA)
Title: Non-aqueous liquid electrolyte secondary battery
Inventor: OMARU ATSUO
IPC: H01M4/58
Filed: 1994-06-02
Granted: 2005-08-09
Abstract: A non-aqueous liquid electrolyte secondary battery including an anode formed of a carbon material capable of dope and undope of lithium, a cathode formed of a lithium-containing transition metal composite oxide and a non-aqueous liquid electrolyte is disclosed. The carbon material for the anode contains graphite and a non-graphitic carbon material formed of at least a non-graphitizable carbon material or a graphitizable carbon material. The non-graphitic carbon material preferably exhibits a discharge capacity per gram 80% or more of that of the graphite, measured in the first cycle of intermittent charging and discharging. The non-graphitic carbon material exhibits a ratio of a discharge capacity up to 0.3 V to a discharge capacity up to 1.5 V which is not smaller than 0.5, measured in the first cycle of intermittent charging and discharging with a standard of a lithium potential. Specifically, the graphite has a true density of 2.1 g/cm3 or greater, an interplanar distance of (002) of less than 0.340 nm found by X-ray diffraction, and a C-axis crystallite size of the (002) plane of 14.0 nm or greater. The non-graphitic carbon material has a true density of 1.70 g/cm3 or smaller, an interplanar distance of (002) plane of 0.37 nm or greater, and an exothermic peak observed at temperatures except 700°C and higher temperatures in differential thermal analysis in an air stream. The non-aqueous liquid electrolyte is a liquid electrolyte formed by dissolving an electrolyte into a non-aqueous solvent containing ethylene carbonate.
Patent CA-2126156-C (CA)
Title: Biological treatment of wastewater and facilities for its application
Inventor: FAYOUX CHRISTIAN
IPC: C02F3/30
Filed: 1994-06-17
Granted: 2002-07-02
Abstract: Process for the purification of sewage by a biological route, in which at least one biological reaction is performed in at least one biological reactor containing microorganisms in activated sludge and the treated water and the activated sludge are separated in a clarifying tank with at least partial recirculation of the activated sludge to the said biological reactor, characterised in that, before the sewage to be treated is introduced into the said biological reactor, the suspended contaminating particles are at least partially separated from it, the separated contaminated particles are conveyed to a sludge activation reactor, separate and arranged in parallel, these separated contaminating particles are employed as principal substrate for the development of microorganisms under strictly aerobic conditions and the superactivated sludge thus obtained is injected into the biological reactor(s).
Patent CA-2126685-C (CA)
Inventor: GANDER BRUNO
IPC: A61K9/50
Filed: 1993-10-18
Granted: 2002-07-23
Abstract: Described is a method of manufacturing microcapsules from biodegradable polymers, the method using biodegradable solvents and producing microcapsules which are free from toxic solvent residues.  The solvents used include simple esters made from a C1-C5 alcohol and a C1-C5 monocarboxylic acid, as well as mixtures of such esters, and the solvent can also contain a C1-C5 alcohol.  Both water-soluble and water-insoluble active substances can be incorporated in the microcapsules. Water-soluble active substances such as drugs, peptides, proteins, enzymes and vaccins are preferably dispersed as an aqueous solution in the polymer solution.  The microcapsules are produced by spraying a solution, suspension or water-in-oil dispersion of active substances and biodegradable polymers. The method is suitable for use in the manufacture of drug, vaccin and enzyme preparations.
Patent CA-2127029-C (CA)
Title: Intrastromal photorefractive keratectomy
Inventor: JUHASZ TIBOR
IPC: A61F9/01
Filed: 1994-06-29
Granted: 2003-08-19
Abstract: A method for performing intrastromal photorefractive keratectomy in the cornea of an eye, using a pulsed laser beam, includes the initial step of focusing the beam to a spot size at a start point in the stroma. The start point is located in the stroma and at a predetermined distance behind the epithelium of the cornea. Beginning with the start point, a volume of stromal tissue which is substantially equal to the volume of the spot size is disrupted by the laser beam. Importantly, the photodisruption is accomplished using an irradiance for the beam which is less than ten times greater the threshold for optical breakdown of the stromal tissue. Subsequently, the beam is focused in a patterned sequence to spot sizes at other discrete points in the stroma. At each point the stromal tissue is photodisrupted. With this progressive pattern of photodisruption, each spot is placed substantially adjacent a volume of previously disrupted tissue. The resultant photodisrupted tissue creates a layer which is substantially centro-symmetrical around the optical axis and in which all points in the layer are substantially equidistant from the epithelium. A plurality of layers can be created.
Patent CA-2127328-C (CA)
Inventor: SHELDON DAVID A
IPC: B24D3/34
Filed: 1994-07-04
Granted: 1999-03-23
Abstract: The present invention provides a vitreous-bonded abrasive grinding wheel wherein the abrasive grit portion comprises a sol-gel alumina abrasive and wherein the wheel has improved corner  or  form  holding  characteristics  and  mechanical properties.    The  invention  further  includes  the  bond composition which allows for improved corner or form holding and mechanical properties with sol-gel alumina abrasives.
Patent CA-2129959-C (CA)
Title: Injectable preparations for curing affected abnormal tissues, method for the preparation thereof, and usage thereof
Inventor: OKAZAKI HIDEO
IPC: A61K33/10
Filed: 1993-09-20
Granted: 2004-09-14
Abstract: An injectable preparation for curing affected abnormal tissues contains a composition having a water-soluble aluminium compound in a concentration ranging from 0.01 mole to 0.5 mole, tannic acid at a rate of 0.5% to 25.0% with respect to said water-soluble aluminium compound, and sodium hydrogen sulfite, and having a pH ranging from pH1.5 to pH3.5. The injectable preparation is extremely stable even during storage for a long period of time and causes neither coloring nor depositing during storage. Further, the injectable preparation is remarkably effective for curing the affected abnormal tissues caused by, for example, brain aneurysm, hemorrhoids, hepatic tumor vessels and so on.
Patent CA-2133441-C (CA)
Inventor: POTTER ANDREW A
IPC: C12N1/21
Filed: 1993-04-05
Granted: 2007-03-27
Abstract: Novel Haemophilus somnus immunogenic proteins are disclosed. The proteins can be used in vaccine compositions for the prevention and treatment of H. somnus infections. The proteins are conveniently produced using recombinant technology.
Patent CA-2133951-C (CA)
Title: Universal slope compensator for use in constructing a flat surface
Inventor: REPASKY JOHN
IPC: E04D11/00
Filed: 1994-10-20
Granted: 2002-08-13
Abstract: A universal slope compensator for use in installing a substantially horizontal surface comprising ballast blocks on a pre-existing surface having a slope, the slope compensator assembly being capable of achieving a wide range of slope compensation.
Patent CA-2140626-C (CA)
Title: Hydroxamic acid derivatives as metalloproteinase inhibitors
Inventor: DICKENS JONATHAN PHILIP
IPC: C07D333/24
Filed: 1993-07-23
Granted: 2002-09-03
Abstract: Compounds of formula (I) have matrix metalloproteinase inhibitory activity, wherein R2 represents a group R6-A- wher-ein A represents a divalent straight or branched, saturated or unsaturated hydrocarbon chain of up to 6 C atoms which may be interrupted by an O or S atom, and R6 represents hydrogen or an optionally substituted phenyl, cycloalkyl or cycloalke-nyl group; R3 represents a group R7-(B)n- wherein n is 0 or 1, B represents a divalent straight or branched, saturated or un-saturated hydrocarbon chain of up to 6 C atoms which may be interrupted by an O or S atom, and R7 is -CONHOH, car-boxyl, esterified or amidated carboxyl, cycloalkyl, cycloalkenyl, heterocyclyl, phenyl, naphtyl, or substituted phenyl or naphtyl in which the substituent(s) are selected from phenyl, hydroxy, C1-C6 alkoxy, benzyloxy, or R8-(C=O)-(C1-C6al-kyl)-O- wherein R8 is hydroxy, amino, or an amino acid residue linked via an amide bond; or (except when n=0) R7 is hy-drogen; R4 represents hydrogen or methyl; R5 represents hydrogen, C1-C6 alkyl or a group D-(C1-C6 alkyl) wherein D re-presents hydroxy, (C1-C6)alkoxy, (C1-C6)alkylthio, acylamino, optionally substituted phenyl, or a heterocyclic group, NH2, or a mono- or di-(C1-NC6 alkyl) amine or a heterocyclic group; or R3 and R5 taken together represent a divalent, saturated or unsaturated hydrocarbon chain of from 8-14 C atoms, which may be interrupted by an O, S or N heteroatom, or a salt, solvate or hydrate thereof, provided that R3 is not the characteristic side chain of a natural alpha-amino acid, or the charac-teristic side chain of a natural alpha-amino acid in which any functional substituents are protected, any amino groups are acylated, and any carboxyl groups are esterified.
Patent CA-2149145-C (CA)
Title: Filtration of soot/ash water slurries and improved partial oxidation process for hydrocarbon feedstocks
Inventor: KOWALLIK WOLFGANG
IPC: C10J3/84
Filed: 1993-11-09
Granted: 2004-04-13
Abstract: The present invention relates to an improved partial oxidation, gasification process using low grade hydrocarbon feedstock involving the steps of gasification, waste heat recovery and carbon removal under formation of a soot water slurry containing the unburned carbon and ash. The soot water slurry is filtered to Form a filtercake of carbon and ash, which cake is removed from the process. It is thereby established a direct once-through, partial oxidation process avoiding the recycle of unburned carbon and ash. The method also comprises filtration of the soot-ash slurries containing 0.5-3 % unburned carbon and 0.1-2 % ash having appreciable amounts of Fe, Ni and V. The slurry is cooled to a temperature below 80 °C and filtered while confined between movable closed belts maintaining a constant pressure against the shrinking mass of carbon/ash particles until the moisture content is reduced to below 80 % by weight. Flocculating agents are added to the soot slurry before filtration, one in the form of a cationic and the other in the form of an anionic flocculation agent. A flaky, or granular filtercake suitable for further processing is obtained.
Patent CA-2149877-C (CA)
Inventor: BRUNO RICHARD C
IPC: A23B7/00
Filed: 1993-12-16
Granted: 1998-08-18
Abstract: Raisins are preconditioned for use in food preparations where a high moisture content is required, by exposing the raisins to heated water or steam to elevate the temperature 130 °F (54°C) or above, followed by reducing the oxygen content of the atmosphere surrounding the raisins and sealing them in moisture-tight and air-tight while still hot, and storing the raisins in this condition for a sufficient period of time destroy substantially all spoilage microorganisms present. If held for at least twelve hours and the temperature is at least about 120 °F (49°C), sugaring is prevented as well. The result is a highly uniform product with pleasing appearance and texture suitable for direct use in baking or other food preparations.
Patent CA-2151149-C (CA)
Title: Novel ring opening monomers
Inventor: RIZZARDO EZIO
IPC: C08G69/42
Filed: 1993-12-21
Granted: 2004-09-07
Abstract: Compounds of formula (1), wherein: R1 and R2 are independently selected from the group comprising hydrogen, C1 to C6 alkyl, C1 to C6 haloalkyl, phenyl, and substituted phenyl; X is selected from the group comprising sulfur, sulphone, disulfide; Y is selected from oxygen, carbon, N-H, N-alkyl, N-aryl, or sulfur; and Z is any linking functionality.  The compounds represent a new class of ring opening monomers.