baber/WOPTO huggingface dataset:
Patent CA-2120253-C (CA)
Title: Recovery of 3,4-epoxy-1-butene from 1,3-butadiene oxidation effluents
Inventor: STAVINOHA JEROME LEONARD JR
IPC: C07D303/04
Filed: 1992-09-28
Granted: 1996-12-03
Abstract: Disclosed are processes for the manufacture of 3,4-epoxy-1-butene (EpB) and, particularly, for the recovery of EpB from an epoxidation effluent comprising EpB, butadiene, oxygen and an inert gas obtained by the selective epoxidation of butadiene with an oxygen-containing gas in the presence of a catalyst and an inert gas. EpB is separated from the effluent by means of an absorption process using liquid butadiene as the absorbent material.
Patent CA-2131761-C (CA)
Title: Crystals of pyridonecarboxylic acid derivative
Inventor: KIMURA YOUICHI
IPC: A61K9/00
Filed: 1994-09-09
Granted: 2002-04-30
Abstract: A method for selectively obtaining any one of an anhydrate, a 1/2 hydrate, a 1 hydrate, and a 3/2 hydrate of 7-[(7-(S)-amino-5-azaspiro[2.4]heptan-5-yl]-8-chloro-6-fluoro-1-[(1R,2S)-2-fluorocyclopropyl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid represented by formula (I) :    is disclosed, comprising treating the compound in an aqueous solvent or water or recrystallizing the compound from an aqueous solvent or water.
Patent CA-2137051-C (CA)
Inventor: MORROW JACK A
IPC: E04G21/12
Filed: 1994-11-30
Granted: 1999-03-30
Abstract: A method for the grouting of an unbonded post-tensioned cable in a concrete structure which cable is enclosed in a cable sheath is disclosed. The method includes the steps of pumping a curable hydrophobic grouting material, for example a polyurethane resin into the cable sheath to fill a selected length of the cable sheath with the grouting material and continuing the injection until the selected length of the sheath is filled with the grouting material and the material expelled from the sheath no longer includes any admixed water. Infiltrated water in the cable sheath is expelled by way of the injected grouting material so that corrosion of the cable is stopped and further corrosion prevented. The grouting material also bonds to the cable and the sheath thereby preventing a sudden eruption of the cable from the surrounding building structure should the cable break.
Patent CA-2144438-C (CA)
Title: Method of determining formation resistivity utilizing combined measurements of inductive and galvanic logging instruments
Inventor: STRACK KURT-M
IPC: G01V3/28
Filed: 1994-07-19
Granted: 2002-01-22
Abstract: A method of determining selected parameters of an earth formation (132) surrounding a borehole (135) by first obtaining at least one induction logging measurements of the selected parameters in a first predetermined volume (138-138') of the formation (132) surrounding the borehole (135) having known first radial and vertical dimensions, then obtaining at least one galvanic logging measurement of the identical selected parameters in a second predetermined volume (136) of the formation (132) surrounding the borehole (135) having known second radial and vertical dimensions that overlap the first radial and vertical dimensions of the first predetermined volume, whereby the overlapping volumes form a representative common volume (140) of the formati on (132), and then combining the induction and galvanic logging measurements using an inversion technique to obtain a measurement of  the selected parameters of the earth formation (132) surrounding the borehole (135) in the representative common volume (140) of the formation (132).
Patent CA-2149584-C (CA)
Title: Digital vsb detector with final i-f carrier at submultiple of symbol rate, as for hdtv receiver
Inventor: PATEL CHANDRAKANT BHAILALBHAI
IPC: H04N5/44
Filed: 1995-05-17
Granted: 1999-07-27
Abstract: In a radio receiver for receiving vestigial sideband (VSB) signals including symbol codes descriptive of digital signals, HDTV signals being exemplary of such VSB signals, a tuner provides for selecting one of channels at different locations in a frequency band used for transmitting such VSB signals. The tuner also includes mixers for performing plural conversion of the selected channel to a final intermediate-frequency (IF) signal) which is digitized by an analog-to-digital converter. The pilot carrier is detected by a narrowband quadrature-phase synchronous detector operative in the digital regime, for controlling the frequency and phase of the local oscillations applied to one of the mixers in the tuner so that the pilot carrier component of the final IF signal is locked to a submultiple of symbol frequency. The fullband final IF signal is synchronously detected by an in-phase synchronous detector to detect symbol codes. The departures of the actual symbol code levels from the ideal ones are detected by a symbol synchronizer and are used in generating corrections for the phasing of the sampling of the final IF signal when it is digitized by the analog-to-digital converter. The ideal symbol code levels in the fullband final IF signal are inferred from the amplitude of the pilot carrier as detected by a narrowband in-phase synchronous detector operative in the digital regime, for example.
Patent CA-2153088-C (CA)
Inventor: BENHAYOUN JEAN-PAUL
IPC: B29D7/01
Filed: 1995-06-30
Granted: 1999-11-02
Abstract: Polyester films 5-30 microns thick having (i) a degree of crystallinity of greater than or equal to 50 %, (ii) a planar birefringence  delta  P of less than or equal to 0.160, (iii) a breaking strength in the longitudinal direction (RRMD) and the weakest of the two breaking strengths in diagonal directions (+/- 45 degrees . w.r.t. the longitudinal direction) (RR45) such that (RRMD)-(RR45) is less than or equal to 40 kg/mm<2> (392.4 MPa) and (iv) an elongation at rupture in the longitudinal direction (ARMD) and the highest of the two elongations at rupture in the diagonal directions (+/- 45 degrees w.r.t. the longitudinal direction) (45) such that (ARMD)+(AR45) is greater than or equal to 290 %, and which satisfy the performance requirements of the particular application envisaged.
Patent CA-2156002-C (CA)
Inventor: AKINPELU AKINWALE ADEMOLA
IPC: H04Q3/08
Filed: 1995-08-14
Granted: 1999-05-18
Abstract: In an environment of competitive local and interexchange carriers, offering number portability between local carriers serving a common region and between switches serving that region, each local carrier accesses a regional database to determine the identity of the carrier and switch serving a local customer. Inaddition, interexchange carriers access a national database to determine the identity of the carrier and switch serving the customer specified by the number dialed by an originating customer.  For customers requiring high reliability service, alternate carriers can be used to serve such customers in case the primary carrier is unavailable; the databases identify these alternate carriers.  Advantageously, this arrangement allows a high degree of freedom of movement of customers between carriers and geographic relocation without requiring a number change.
Patent CA-2156406-C (CA)
Title: Machine a nettoyer les racines et les coques de germes de haricots
Inventor: MA KEE WAI
IPC: A23N15/02
Filed: 1994-02-24
Granted: 2000-01-11
Abstract: L'invention concerne une machine à débarrasser les germes de soja de leurs racines et de leurs enveloppes. Ladite machine est constituée d'une spirale interne (7) et d'une spirale externe (6) placées dans des directions opposées et montées sur le cylindre perforé (3) à supports de fixation intégrés (8) entraîné par un moteur tournant dans un cylindre à chemise (1). Lorsque les germes non nettoyés sont chargés dans le cylindre perforé rotatif (3) dans un sens donné, les racines sont détachées et les enveloppes séparées sous l'effet du cycle de rotation, et passent ensuite dans des orifices (4) donnant sur l'espace (5) entre le cylindre rotatif (3) et la chemise (1), la spirale externe (6) poussant vers l'extérieur le sous-produit dans une direction. Les germes de soja nettoyées, c.-à-d. le produit, sont poussées par la spirale interne dans une autre direction. Ladite machine peut être utilisée avec un cylindre simple, double ou voire même multiple pour nettoyer les racines et les enveloppes de germes de soja en différentes quantités selon la demande.
Patent CA-2163113-C (CA)
Title: Stabilisation de matieres thermoplastiques alterees
Inventor: HERBST HEINZ
IPC: C08K5/1515
Filed: 1994-05-24
Granted: 2005-09-20
Abstract: On stabilise des thermoplastiques endommagés de manière extrêmement efficace en utilisant un mélange composé de a) 0,05 à 20 % en poids, basé sur la matière plastique devant être stabilisée d'au moins un époxyde polyvalent, et b), 0,01 à 2 % en poids, basé sur la matière plastique devant être stabilisée, d'au moins un phénol stériquement empêché.
Patent CA-2167385-C (CA)
Inventor: LUND GARY K
IPC: B60R21/26
Filed: 1994-08-02
Granted: 1999-06-15
Abstract: A solid composition for generating a nitrogen containing gas is provided. The composition includes an oxidizer and a non-azide fuel selected from anhydrous tetrazoles, derivatives, salts, complexes and mixtures thereof. Preferred tetrazoles include 5-aminotetrazole and bis-(1(2)H-tetrazol-5-yl)-amine, a metal salt, a salt with a nonmetallic cation of a high nitrogen content base or a complex thereof. The salts and complexes are generally metal salts and complexes. The metal can be a transition metal. Metals that have been found to be particularly useful include copper, boron, cobalt, zinc, potassium, sodium, and strontium. The oxidizer is generally a metal oxide or a metal hydroxide. The composition can include certain other other such as secondary oxidizers, burn rate modifiers, slag formers, and binders.
Patent CA-2168770-C (CA)
Inventor: ROE DONALD CARROLL
IPC: A61F5/44
Filed: 1994-08-09
Granted: 2000-12-12
Abstract: Article absorbant jetable, tel qu'une couche. L'article abosrbant présente une première couche supérieure possédant des orifices suffisamment larges pour autoriser le passage des matières fécales de faible viscosité vers un élément de retenue de matières fécales. Ce dernier assure l'immobilisation des matières fécales afin d'en éliminer les composants liquides. Les composants liquides des matières fécales sont ainsi absorbés par le noyau et les composants solides sont séparés des composants liquides. Cette réalisation permet un nettoyage plus facile de l'enfant ou autre utilisateur, lors du retrait de l'article absorbant jetable, souillé.
Patent CA-2169376-C (CA)
Title: Procedure for encapsulating nsaids
Inventor: GHANTA SAMBASIVA RAO
IPC: A61K9/00
Filed: 1994-08-09
Granted: 2003-10-21
Abstract: This disclosure is directed to preparation of individual taste-masked, high bioavailability, high payload, microcapsules by microencapsulation of water-insoluble NSAID drug materials in the substantial absence of microcapsule agglomerates. These taste-masked microcapsules contain a high payload, e.g., about 83+ wt. % of said NSAID) drug material having high bioavailability and can then be formulated into chewable tablets and liquid aqueous suspensions for medicinal use. Both cellulose acetate phthalate and gelatin are the mivcroencapsulating polymer wall material. Control of pH, controlled addition of a Hofmeister (lyotropic) salt, microencapsulation of the water-insoluble NSAID medicament with a liquid phase of both cellulose acetate phthalate and gelatin microencapsulating material and the subsequent insolubilization of said liquid encapsulating material after it is wrapped around the medicament core with dilute acid are important process parameters to achieving the proper individual microcapsules to obtain highly bioavailability task-masked, water-insoluble NSAID drug materials, especially, naproxen and ibuprofen by microencapsulation alone.
Patent CA-2170407-C (CA)
Inventor: RTEMO BO LENNART HERBERT
IPC: D21F9/00
Filed: 1994-09-06
Granted: 1999-02-09
Abstract: Une caisse de tête à trois couches présente deux palettes de séparation rigides (11; 12) montées dans la chambre (10) de règle d'épaisseur de la caisse de tête pour former deux canaux extérieurs (39; 41) d'écoulement de pâte ainsi qu'un canal intermédiaire (40). L'extrémité amont de chaque palette (11, 12) est fixée solidement en porte-à-faux, leur extrémité aval (15; 16) n'est pas fixée, elle est libre et dotée d'un prolongement (17; 18) des palettes. De plus, l'extrémité aval (20; 22) du prolongement (17; 18) n'est pas fixée, elle est libre et située juste en aval de l'ouverture (14) de la règle d'épaisseur. Le prolongement (17; 18) des palettes est plus mince que lesdites palettes (11; 12), de manière qu'un gradin (23; 24) est formé de chaque côté de l'ensemble palettes (11; 12) et prolongements (17; 18). Afin d'améliorer la formation des couches, chaque palette (11; 12) et chaque prolongement (17; 18) de palette présente une partie située dans une partie aval convergente (13) de la chambre (10) de la règle d'épaisseur, et les parties de palette ainsi que de prolongement sont d'une longueur sensiblement égale. Les prolongements (17; 18) des palettes sont coniques, aussi rigides que possible, et se composent de résine époxy renforcée par de la fibre de verre. En outre, le gradin (23) situé dans les canaux extérieurs (39; 41) est environ deux fois plus haut que le gradin (24) situé dans le canal intermédiaire (40).
Patent CA-2174847-C (CA)
Inventor: KOPP CLINTON VIRGIL
IPC: B01D61/14
Filed: 1994-10-27
Granted: 2005-04-05
Abstract: La présente invention concerne un procédé et un dispositif (1) de récupération de l'eau directement à partir des eaux usées brutes d'un égout. Le dispositif comporte un tamis de filtration (2) des eaux usées brutes circulant dans l'égout, donnant un filtrat d'effluents dont la taille de particules n'excède pas environ 900 microns; un premier élément de séparation à membrane, de préférence sous forme d'une unité de microfiltration continue (5), retenant les solides en suspension dans tout ou partie du filtrat d'effluents. Dans la réalisation préférée, le procédé peut utiliser un second élément de séparation à membrane, de préférence sous forme d'un filtre à osmose inverse (8). Ce filtre retient alors une sélection de substances solubles dans tout ou partie du filtrat d'effluents du premier élément de séparation à membrane (5). En option, le procédé peut intégrer d'autres phases comme l'adjonction dosimétrique de substances chimiques (6), le passage sur un filtre à lit bactérien (9) à croissance lente, ou d'autres processus de traitement biologique en cycle court. Dans la réalisation préférée, la taille des mailles du tamis est conçue pour que le filtrat d'effluent ne comporte plus de particules d'une taille excédant environ 200 à 250 microns. Il est préférable que le tamis (2) inclue également un dispositif d'injection d'air pour désodoriser les eaux usées et/ou pour favoriser le nettoyage du tamis.
Patent CA-2175476-C (CA)
Title: Recepteur d'opioides: compositions et procedes
Inventor: O'DOWD BRIAN F
IPC: C12P21/08
Filed: 1994-11-07
Granted: 2005-09-13
Abstract: La présente invention concerne généralement des compositions et des procédés d'obtention de polypeptides récepteurs d'opioïdes epsilon. L'invention concerne également des polynucléotides codant les polypeptides récepteurs des opioïdes epsilon, les vecteurs recombinés véhiculant ces séquences, les cellules hôtes recombinées contenant soit lesdites séquences soit lesdits vecteurs ainsi que des polypeptides recombinés récepteurs d'opioïdes. L'invention concerne également des procédés d'utilisation d'un tel polypeptide récepteur isolé recombiné, dans des dosages destinés à sélectionner et améliorer les substances capables d'entrer en interaction avec les polypeptides récepteurs d'opioïdes epsilon afin de les utiliser pour le diagnostic, la conception de médicaments et des applications thérapeutiques.
Patent CA-2180094-C (CA)
Inventor: ISHIZAWA SEIYA
IPC: B27L1/10
Filed: 1996-06-27
Granted: 2001-03-13
Abstract: A debarking tooth of a debarking machine comprises a platform secured to an outer surface of a rotary member rotatably arranged in a wood container; a blade tip plate detachably attached to the platform; an arbitrary number of engage projections formed on one of the platform and the blade tip plate in a tapered shape so that a horizontal area of each engage projection becomes gradually smaller toward a distal end; an arbitrary number of engage recesses formed on the other one of the platform and the blade tip plate in a tapered shape so that a horizontal area of each engage recess becomes gradually smaller toward a bottom, the engage recesses being respectively engageable with the engage projections; and a fixing screw member driven toward the platform from the blade tip plate with the engage projections engaged with the engage recesses, thereby securely attaching the blade tip plate to the platform.
Patent CA-2180422-C (CA)
Inventor: KAHR JOSEPH C
IPC: F16D65/06
Filed: 1996-07-03
Granted: 2000-09-19
Abstract: A bonded composition type railroad brake shoe is disclosed in which the keybridge cavity of the brake shoe backing plate is filled with composition brake lining material for reinforcement and dampening of the keybridge. An insert located in the keybridge cavity comprises a pair of spaced-apart ribs that are upturned from a base plate such that the insert partitions the keybridge cavity. The insert is bonded in place by the composition brake lining material, which is formed with a keyway by the insert. The insert further serves to reinforce the keybridge in conjunction with the composition brake lining material therein.
Patent CA-2187294-C (CA)
Inventor: STOLZ BERND
IPC: B65D47/06
Filed: 1995-04-07
Granted: 2003-08-26
Abstract: The invention pertains to a closure for a container, consisting of a closure underpart (10) and a screw cap (20), where the closure underpart (10) connects to the container opening by means of a base part (11), and has a pour spout (15) that is joined to the base part (11). The screw cap (20) with cap base and inside-threaded cap casing (21) screws off and onto the outside-threaded pour spout (15). The cap casing (21) of the screw cap (20) is extended at the open end with at least one locking tab (22). The locking tabs (22) of the screw cap (20) cooperate with catches (23) on the closure part to form an interlocking connection, the catches having in the screw-on direction a flat sloping flank which verges into an abrupt catch flank, forming with the locking tabs (22) the interlocking connection, which can be broken by displacing the locking tab (22) relative to the catches (23). A child safety lock that can be easily broken is created with an annular flange (14) which forms an integral part of the closure underpart set off from the cap casing, which at least partially covers the locking tabs (22) and which bears the catches (23) on the inside facing the locking tabs (22).
Patent CA-2188933-C (CA)
Title: Apolipoprotein e polymorphism and treatment of alzheimer's disease
Inventor: POIRIER JUDES
IPC: C12Q1/68
Filed: 1995-04-26
Granted: 2000-11-14
Abstract: The present invention relates to a method for the treatment of Alzheimer's disease in a patient, which comprises: a) determining the presence of apolipoprotein E3 and E2 alleles from peripheral tissues of the patient which is indicative of the degree of impairment in brain acetylcholine synthesis; b) administering to the patient a suitable therapeutic agent relative to the degree of impairment in brain acetylcholine synthesis of step a). The present invention also relates to a method for the identification of human subjects (including Alzheimer disease) to be responsive to cholinomimetic therapy, comprises determining the presence of apoE2 and E3 alleles (and the absence of apoE4) in a biological sample of the patient directly using appropriate apoE2 and E3 probes or indirectly by phenotyping, and wherein one or two copies of apoE2 or E3 gene allele indicates a predisposition to respond to cholinomimetic therapies.
Patent CA-2189218-C (CA)
Inventor: BRISSON MAURICE
IPC: B27B5/29
Filed: 1996-10-30
Granted: 1999-08-17
Abstract: La divulgation décrit un système de montage flexible développé principalement pour des écorceuses à anneau, comprenant une combinaison de liens de support oscillant librement et de dispositifs pneumatiques de compensation du poids, arrangés de façon à permettre à l'assemblage des outils d'écorçage de la machine de se déplacer dans n'importe quelle direction sous l'impulsion de forces externes exercées par le mouvement longitudinal d'alimentation ou les irrégularités de forme de la bille.
Patent CA-2189594-C (CA)
Title: Guiding catheter with ultrasound imaging capability
Inventor: BUCK JERRICK C
IPC: A61B1/005
Filed: 1996-11-05
Granted: 2007-01-16
Abstract: A steerable guiding catheter having an ultrasound imaging distal tip for use in guiding an electrophysiology catheter. The guiding catheter includes a steering mechanism in order to steer the tip of the catheter so that the electrophysiology catheter may be steered to a desired location within the body of a patient.
Patent CA-2189868-C (CA)
Title: Method of manufacturing polyolefin solutions
Inventor: NOGATA TETSURO
IPC: C08J3/02
Filed: 1996-03-07
Granted: 2007-04-03
Abstract: A method of manufacturing a polyolefin solution continuously and in a stable manner with a high yield which comprises kneading a polyolefin resin with a liquid being composed of a solvent for the polyolefin resin, and is characterized in that; (1) a continuous kneader having a self-cleaning action is used, and (2 ) a starving state is maintained in the internal sections of the kneader at a polyolefin resin feed section, a liquid feed section, and the section in which the kneading of the polyolefin resin and the liquid is initially carried out.
Patent CA-2203622-C (CA)
Title: Compounds, pharmaceutical composition and diagnostic device comprising them and their use
Inventor: TROUET ANDRE
IPC: A61P37/08
Filed: 1995-08-21
Granted: 2011-11-01
Abstract: The compound (W-Z-M) according to the invention comprises a component (M) chosen from the group consisting of markers and therapeutic agents possessing an intracellular active site (A.S.), linked to a ligand (W--Z) comprising an arm (Z) linked to a terminal group (W), characterized in that the linkage between the arm (Z) of the ligand (W-Z) and the component (M) prevents intracellular entry of the compound (W-Z-M) and/or inhibits expression of the marker (M), in that said linkage can be selectively cleaved by factors secreted by target cells so as to permit expression of the marker (M) or entry of the therapeutic agent (M) into said target cells, and in that the terminal group (W) provides for the stability of the compound (W-Z-M) in the serum and the circulating blood.
Patent CA-2205299-C (CA)
Title: Production of 11c-methyl iodide
Inventor: ULIN JOHAN
IPC: C07C17/38
Filed: 1995-10-20
Granted: 2007-06-05
Abstract: The present invention discloses a method and an apparatus for high yield production of 11C-methyl iodide by selectively monohalogenating 11C-methane, whereby the method is comprising a first step of introducing 11CH4 into an apparatus containing a circulation system comprising a number of connected circulation members (1 - 7), and the circulation system is further comprising a number of valves (Vl - V5) and at least one pump (8) for controlling the circulation. The method further comprises a second step of recirculation of 11CH4 and introduction of iodine vapors into the circulating gas stream passed through a heated reaction chamber (3) within the apparatus having the circulation system during a predefined time period during continuous removal of formed 11CH3I by means of a second trap (7), and a third step of releasing after the predefined time period the produced 11C- methyl iodide for further processing by heating the second trap (7) containing the produced 11CH3I while leading a stream of inert gas throu gh the second trap, whereby this second trap (7) will act as a small size chromatograph purifying the desired 11CH3I.