baber/WOPTO huggingface dataset:
Patent CA-2207303-A1 (CA)
Title: Procede et dispositif de diagraphie de formations souterraines au moyen du radar
Inventor: XIA JIQING
IPC: G01V3/30
Filed: 1995-12-04
Abstract: Procédé de diagraphie d'une formation souterraine depuis l'intérieur d'un puits de forage (12), qui consiste à émettre un signal électromagnétique depuis un premier emplacement (20) dans un puits de forage (12), à déterminer le moment d'émission du signal, à détecter une composante directe (D) du signal qui s'est déplacé depuis le premier emplacement (20) vers un deuxième emplacement (22) sans avoir été réfléchi, à déterminer le moment d'arrivée de la composante directe (D) au niveau du deuxième emplacement (22) et à déterminer la vitesse du signal dans la formation souterraine à partir du moment d'émission du signal, du moment d'arrivée de la composante directe (D) et de la distance entre le premier (20) et le deuxième (22) emplacement. On peut utiliser la vitesse du signal pour procéder à la diagraphie de la formation au radar. Un instrument de diagraphie servant à mettre le procédé en application comprend un émetteur (20) situé en un premier point du corps de l'instrument afin d'émettre un signal électromagnétique, des moyens situés dans le corps de l'instrument afin de déterminer le moment d'émission du signal, un récepteur (22) situé en un second point du corps de l'instrument afin de détecter un signal qui s'est déplacé de l'émetteur au récepteur à travers la formation souterraine, ainsi que des moyens (24) situés dans le corps de l'instrument afin de traiter le signal détecté en fonction du moment d'émission par l'émetteur d'un signal correspondant.
Patent CA-2209232-A1 (CA)
Title: Resilient well cement compositions and methods
Inventor: ONAN DAVID D
IPC: C04B28/04
Filed: 1997-06-27
Abstract: The present invention provides resilient cement compositions and methods which are particularly useful in the construction and repair of oil and gas wells. The cement compositions have improved mechanical properties including elasticity and ductility and are basically comprised of cementitious material, an aqueous rubber latex and a latex stabilizer.
Patent CA-2210093-A1 (CA)
Title: Cyclopropylpyrroloindole-oligopeptide anticancer agents
Inventor: LOWN J WILLIAM
IPC: C07D487/04
Filed: 1996-01-31
Abstract: The invention is directed to novel cyclopropylpyrroloindole-oligopeptide compounds which are useful as anticancer agents. The novel cyclopropylpyrroloindole-oligopeptide compounds have general structure (I), wherein Het1 and Het2 are individually selected from the group consisting of pyrrole, imidazole, triazole, thiophene, furan, thiazole, oxazole and pyrazole, R is selected from the group consisting of a valence bond; a C1-C6 alkyl; a C2-C6 alkenyl; a C2-C6 alkynyl; and an ortho, meta or para linked aromatic group, A is selected from the group consisting of a C1-C6 alkyl group; and amidine or derivative thereof; a guanidine; a secondary, tertiary or quaternary ammonium salt; and a sulfonium salt, n is 0 to 3, and m is 0 to 3.
Patent CA-2210494-A1 (CA)
Title: Enhanced instrumentation software in fault tolerant systems
Inventor: KOMOSINSKI PAUL
IPC: G06F11/00
Filed: 1996-01-11
Abstract: A monitor function (100) is implemented to monitor and control service processes and other system entities that perform tasks on a distributed network. The monitor function (100) tracks the demise and instantiation of processes and entities that either export (112) or import (108) instrumentation. Any service process or other system entity (driver, interrupt handler, system library procedure) can export instruments (indicators, controls testpoints). Instrument (110) updates are propagated automatically if they are significant. The importing process (108) conveys the information to a management system (102) so that a human operator, or automated system, can observe and control the operation of the network service. One aspect of the invention uses a backup exporter (112) to take over the processing of an exporter (112) that has become nonfunctional. Another aspect of the invention determines when a CPU has gone down and acts accordingly to identify service processes that were associated with an exporter (112) in the down CPU. For each exporter in the down CPU, any importer (108) that was monitoring with the exporter (112) must perform a switchover to monitor instrumentation on the new exporter (112) in a fault tolerant manner. Additional methods are disclosed which implement fault tolerant monitoring and control in a distributed network.
Patent CA-2213519-A1 (CA)
Inventor: MANAK MARK
IPC: C07D491/052
Filed: 1996-02-21
Abstract: Compounds, including compositions and methods of making and using these compounds for treating retroviral infections, are provided according to formula (G-1), wherein M is O or NH; Z is O, NH or S; R240, and R250 are each H, C1-10 alkyl, C1-10 aryl, alkyl, amide, or CH2COOR260, where R260 is C1-10 alkyl or acyl; R200, R210, R220 and R230 are each H, halogen, hydroxyl, NH2, NH-alkyl, N-(alkyl)2, O-alkyl, O-acyl, COCF3, OCF3 or CH2COO NH-alkyl; or R200 and R210 form C5-C10 cyclo or heterocyclo optionally substituted with one or more of halogen, hydroxyl, NH2, NH-alkyl, N-(alkyl)2, O-acyl, O-alkyl, CO, CF3, OCF3 or CH2 COONH-alkyl; wherein C3 and C4 can be bound by a single or double bond; configurations at 3' or 4' can be (R) or (S); and R240 and R250 are either cis-.beta. or cis-.alpha., or trans-3'-$g(.alpha.) or trans-3'-$g(b) oriented. Stereoselectivity can be enhanced by preparing these compounds by catalytic asymmetric dihydroxylation.
Patent CA-2213520-A1 (CA)
Inventor: WALDOCK KEVIN H
IPC: F42B39/30
Filed: 1995-02-24
Abstract: L'invention concerne un ensemble détonateur dans lequel les conducteurs électriques sont fixés à un connecteur électrique qui maintient les extrémités des conducteurs dans un état non conducteur et étanche à l'eau, tout en permettant leur raccordement à une autre paire de conducteurs électriques sans qu'il soit nécessaire d'utiliser d'outils d'épissage spéciaux. La longueur des conducteurs électriques est choisie de sorte que l'ensemble puisse être inséré dans une charge de stimulation et que le connecteur électrique soit contenu entièrement dans le trou traversant la charge de stimulation. L'emballage de ces dispositifs de détonateurs se fait au moyen d'au moins un plateau réalisé d'une pièce en matériau ignifuge. Les ensembles détonateurs viennent se loger sans jeu dans des creux allongés parallèles situés en haut du plateau, de sorte que les détonateurs restent en place en cas de basculement ou de renversement du plateau. Les ensembles détonateurs sont disposés tête-bêche de manière à ce que les extrémités des détonateurs proprement dits de deux ensembles adjacents se trouvent sur les côtés opposés du plateau. En outre, les creux dans chaque plateau sont espacés de sorte que les détonateurs soient espacés d'environ un pouce, chaque plateau présentant environ un pouce d'épaisseur pour que les détonateurs, dans les plateaux adjacents d'un empilement, soient également espacés d'au moins un pouce.
Patent CA-2215800-A1 (CA)
Inventor: GERSHANIK TATYANA
IPC: A61K9/107
Filed: 1995-04-24
Abstract: The invention concerns a self-emulsifiable formulation (SEOF) comprising an oily constituent and a surfactant, the SEOF being characterized in that the oily constituent contains an oily vector and a cationic lipid and, optionally, a lipophilic oily fatty alcohol. The oil-in-water emulsion produced by mixing the SEOF comprises positively charged oil droplets.
Patent CA-2219309-A1 (CA)
Inventor: BARRETT MARK S
IPC: F16C3/02
Filed: 1997-10-24
Abstract: An aluminum drive shaft includes an aluminum alloy torque tube and aluminum alloy yokes that are pressed into each end section of the torque tube and welded to the end of the torque tube.  Each end section is reduced in diameter and joined to a larger central section by a transition section.  The end sections and transition sections are formed by swaging the ends of an aluminum alloy tube blank radially inwardly  in two stages.  The transition sections include an annular rib in the form of a concentric circular band located midway between inner and outer conical portions.  The annular ribs  stiffen the transition sections to reduce oil canning and noise.
Patent CA-2219642-A1 (CA)
Title: Procede et equipement d'enlevement d'une canalisation d'amenee et de remplacement par un tuyau en polyolefine
Inventor: REBER CLEVE C
IPC: E21B7/04
Filed: 1996-04-26
Abstract: La présente invention concerne un procédé d'enlèvement d'un tuyau ou d'une canalisation d'amenée et de remplacement de ceux-ci par un tuyau en polyoléfine. Plus particulièrement, l'équipement ou système, qui est unique, de la présente invention, comprend une tête rotative reliée à plusieurs raccords de tuyau, pour enlever le vieux tuyau, qui est habituellement en béton ou en grès, par découpe, déchiquetage et broyage. La tête a un périmètre extérieur pourvu de trépans à molettes qui coupent, déchiquettent et broient le vieux tuyau ou la terre, donnant des morceaux qui traversent cette tête vers l'intérieur. Derrière elle se trouve un élément non rotatif qui ouvre et compacte le trou pratiqué par la tête pour le tuyau de remplacement en polyoléfine, et tire ce dernier dans le trou.
Patent CA-2221680-A1 (CA)
Title: Microwave pressure vessel and method of sterilization
Inventor: ICE CHARLES L
IPC: A61L2/12
Filed: 1996-05-21
Abstract: A method and apparatus for microwave sterilizing, disinfecting or otherwise heating materials, objects, liquids and the like under pressure is disclosed. The invention utilizes the generation and transmission of single-mode, noninterfering coaxial microwaves from multiple sources (30) into the material to be treated placed inside a container (26) which is within a treatment chamber (20) of a microwave pressure vessel (12).   As a result, a more efficient transfer of microwave energy into the material to be treated is obtained.
Patent CA-2222664-A1 (CA)
Title: Dissolved solids control in pulp production
Inventor: CHASSE FRED R
IPC: D21C7/14
Filed: 1994-02-25
Abstract: Kraft pulp of increased strength and bleachability may be produced with deceased consumption of effective alkali, and at a lower H factor, by keeping the dissolved organic material (DOM) concentration low substantially through the entire kraft cook, including by extracting high DOM liquid from at least one part of a continuous digester and replacing it with much lower level DOM liquid. Existing pulp mills having two-vessel hydraulic, one-vessel hydraulic, or other systems may be retrofit to provide for extractions and additions of low DOM dilution liquor (including substantially DOM-free white liquor). Also, commercial size batch digesters (8 tons per day of pulp or more) can be operated with low DOM liquor to produce increased strength pulp. Using dilution with low DOM liquor also results in reduced H factor and effective alkali consumption, and increased bleachability.
Patent CA-2222719-A1 (CA)
Inventor: SONDEREGGER RALPH L
IPC: G11B23/03
Filed: 1996-05-28
Abstract: Une cartouche à disque (10) comprend un support d'enregistrement en forme de disque (14), et un boîtier (12). Ce dernier présente une ouverture (30) permettant aux têtes d'enregistrement et de lecture (42, 44) d'une unité de disque d'accéder au support d'enregistrement quand il est dans le boîtier. Des rampes (34) de chargement-déchargement des têtes se trouvent dans la cartouche, près de l'ouverture d'accès des têtes, pour amener les têtes d'enregistrement et de lecture de l'unité de disque jusqu'au support d'enregistrement et les en éloigner.
Patent CA-2222779-A1 (CA)
Inventor: ROSE FLOYD D
IPC: G10D3/14
Filed: 1996-06-07
Abstract: An improved tuning system for use in connection with stringed instruments (30) is provided. The improved tuning system includes improved strings and methods of manufacturing such strings. It may also include a tuning mechanism for obtaining at least harmonic tuning of the strings by causing pivotable movement of bridge critical contact surfaces (94) so that a desired distance between the bridge critical contact surfaces (94) and the nut (38) of the stringed instrument is obtained. In a preferred embodiment, the instrument includes a tuning mechanism for obtaining substantially simultaneous harmonic and pitch tuning.
Patent CA-2224222-A1 (CA)
Title: Spironolactone and angiotensin ii antagonist combination therapy for treatment of congestive heart failure
Inventor: MACLAUGHLAN TODD E
IPC: C07D249/08
Filed: 1996-06-05
Abstract: A combination therapy comprising a therapeutically-effective amount of an epoxy-free spirolactone-type aldosterone receptor antagonist and a therapeutically-effective amount of an angiotensin II receptor antagonist is described for treatment of circulatory disorders, including cardiovascular disorders such as hypertension, congestive heart failure, cirrhosis and ascites. Preferred angiotensin II receptor antagonists are those compounds having high potency and bioavailability and which are characterized in having an imidazole or triazole moiety attached to a biphenylmethyl or pyridinyl/phenylmethyl moiety. A preferred epoxy-free spirolactone-type aldosterone receptor antagonist is spironolactone. A preferred combination therapy includes the angiotensin II receptor antagonist 5-[2-[5-[(3,5-dibutyl-1H-1,2,4-triazol-1-yl)methyl]-2-pyridinyl]phenyl-1H-tetrazole and the aldosterone receptor antagonist spironolactone.
Patent CA-2226088-A1 (CA)
Inventor: HOWIE WILLIAM J
IPC: C12N9/88
Filed: 1996-06-28
Abstract: The present invention provides tomato plants exhibiting a delayed ripening phenotype. The plants of the invention comprise a T-DNA insert comprising a truncated Acc2 gene. Integration of the T-DNA insert into the plant genome inhibits ethylene biosynthesis in the fruit.
Patent CA-2226436-A1 (CA)
Title: Generation of immune responses to prostate-specific antigen (psa)
Inventor: PANICALI DENNIS L
IPC: C12N9/64
Filed: 1996-06-26
Abstract: We have discovered that by using a recombinant viral vector, preferably a pox virus vector having at least one insertion site containing a DNA segment encoding prostate-specific antigen (PSA), operably linked to a promoter capable of expression in the host, a specific humoral and cellular immune response to PSA can be generated. The method preferably comprises introducing a sufficient amount of the recombinant pox virus vector into a host to stimulate the immune response, and contacting the host with additional PSA at periodic intervals thereafter. The additional PSA may be added by using a second pox virus vector from a different pox genus. In another embodiment, additional PSA can be added by contacting the host with PSA by a variety of other methods, including in one preferred embodiment adding PSA. The PSA may be formulated with an adjuvant or in a liposomal formulation.
Patent CA-2230960-A1 (CA)
Title: Piperazine derivatives and process for the preparation thereof
Inventor: LEE SUN-HWAN
IPC: C07D295/104
Filed: 1997-06-28
Abstract: The present invention relates to new piperazine derivatives having the general formula (I):      wherein R1 or a R2 are the same or different or a each represent a hydrogen atom, a substituted or unsub-stituted C1-C8 alkyl group, a substituted or unsub-stituted C3-C6 cycloalkyl group, a substituted or unsubstituted C2-C8 unsaturated alkyl. group, a ketone group, a substituted or unsubstituted aryl group, a substituted or unsubstituted C1-C4 alkoxy group, a substituted or unsubstituted arylhydroxy group, a substituted or unsubstituted amino group, a C1-C4 ester group, a C1-C4 thioester group, a thiol group, a substituted or unsubstituted carboxyl. group, an epoxy group, or a substituted or unsubstituted C1-C4 thio-alkoxy group, or R1 or a R2 are fused to form a C3-C4 saturated or unsaturated chain; R3, R4, R5, R6 or a R7 are the same or different or a each represent a hydrogen atom, a halogen atom, a hydroxy group, a nitro group, a C1-C4 ester group, a lower alkyl group, a C1-C4 thio-alkyl group, a substituted or unsubstituted C3-C6 cycloalkyl group, a lower alkoxy group, a C1-C4 thioalkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted lower arylalkoxy group, a substituted or unsubstituted lower alkylamino group, or a lower alkyl substituted or unsubstituted carbamate group; or two adjacent groups among R3, R4, R5, R6 or a R7 are bonded with each other to form a 1,2-phenylene or 2,3-naphthylene group; X is an oxygen or sulfur atom, or a substituted or unsubstituted imino group; Y is bonded at the 3-position or 4-position of the aromatic ring or a represents an oxygen atom or -NR8- in which R8 has the same meaning as R3; Z is a hydroxy group, a lower alkoxy group, a C1-C4 thioalkoxy group, a substituted or unsubstituted aryloxy group, a lower alkylamino group, or a substituted or unsubsti-tuted cycloamino containing 1-5 nitrogen atoms; A is a nitrogen atom or -CH=; or a their pharmaceutically acceptable acid addition salt. The compounds of formula (i) are useful for the prevention or treatment of tumors in mammals.
Patent CA-2232396-A1 (CA)
Title: Method and apparatus for locating the source of an unknown signal
Inventor: HAWORTH DAVID PATRICK
IPC: G01S5/06
Filed: 1995-09-20
Abstract: A method of determining the location of an unknown source 10 transmitting a unknown signal to satellite relays 14 and 16 comprises receiving the signal from the relays at respective receivers 18. The receivers 18 receive reference signals via respective relays from a common source 22. The unknown signal and reference signal received by each receiver 18 are processed coherently to preserve their timing and phase information relative to one another independently of signals received elsewhere. The signals are frequency downconverted and digitised, and transferred to a common processing computer 150. The computer 150 performs cross ambiguity function processing of the reference signals to determine their relative Differential Time Offset (DTO) and Differential Frequency Offset (DFO). It performs the like for the received unknown signals to determine relative DTO and DFO, relative time and frequency shifts being introduced between the unknown signals by incorporation of the reference signal DTO and DFO in order to enable the unknown signal DFO to be determined relative to the reference signal DFO. The reference signals are also employed to counteract phase noise and frequency drift effects in the unknown signals. From the unknown signal DTO and DFO the position of the unknown source 10 is calculated.
Patent CA-2232900-A1 (CA)
Inventor: FISCHELL TIM A
IPC: A61F2/06
Filed: 1998-03-20
Abstract: The present invention is a stent delivery catheter system for placing a stent within a stenosis in a vessel of a human body. The stent delivery catheter system utilizes a slideable sheath with a thin-walled distal portion that is situated coaxially over a stent that is placed onto a balloon located at the distal portion of a balloon angioplasty catheter. The distal end of a central portion of the sheath has an interior shoulder which is capable of exerting a distally directed push force on the balloon angioplasty catheter at a point that is just proximal to the stent. This push force i5 then transferred through the non-deployed stent to a gradually tapered, highly flexible, lubricity coated distal tip of the balloon angioplasty catheter. The structure of a continuous outer surface extending backward from the distal tip and onto the distal section of the sheath, plus the lubricity coating of the outer surfaces of the distal tip and the sheath, plus the increased stent delivery catheter system pushability provided by the sheath and the stent itself makes it possible for the stent delivery catheter system to be pushed through even very tight stenoses.
Patent CA-2233231-A1 (CA)
Title: Crystallizable glass, crystallized glass, crystallized glass article, and method of manufacturing the crystallized glass article
Inventor: ISHIDA YUJI
IPC: C03C10/12
Filed: 1996-09-25
Abstract: A crystallized glass which can be redraw-molded and a process for producing a crystallized glass article by redraw-molding. In the crystallized glass, the maximum particle size of the deposited crystals is 5 µm or below and the glass phase amounts to 10 to 85 % by volume. It has a softening point lower than the melting point of the main deposited crystals and its crystallization does not proceed substantially, even when it is heated to a temperature higher than the softening point. A redraw-molded crystallized glass article may be produced by premolding the above-mentioned crystallized glass and then orienting it while heating to a temperature higher than the softening point.
Patent CA-2235669-A1 (CA)
Inventor: BARCLAY DEBORAH LEWANDOWSKI
IPC: H04W36/38
Filed: 1998-04-23
Abstract: In a wireless telecommunications system comprising a mobile switching center and at least two base stations, control of a selection/distribution unit (SDU) is passed from a source base station to a target base station during source transfers. More particularly, the target base station establishes a packet-based connection with the SDU so that control information relating to an active mobile call may be transferred from the source base station to the target base station via the SDU with the target base station then taking the role of the source base station in the call. Upon completion of the source transfer, the source base station disconnects the link based on the second interconnection protocol from the SDU.
Patent CA-2237148-A1 (CA)
Inventor: BONFIELD WILLIAM
IPC: C03C12/00
Filed: 1996-11-08
Abstract: Matériaux composites à utiliser comme prothèses destinées à être fixées à des tissus mous, tels que le cartilage, les tendons, la peau, la membrane tympanique ou la gencive, ainsi qu'à des os spongieux ou des os trabéculaires. Ces matériaux sont basés sur la combinaison d'un liant polyoléfinique avec certains matériaux vitreux bioactifs. Ces composites se lient activement avec des tissus mous, sont faciles à formuler et présentent des caractéristiques mécaniques comparables à celles des tissus mous visés.
Patent CA-2238498-A1 (CA)
Title: Apparatus and method for measuring optical characteristics of an object
Inventor: JUNG RUSSEL W
IPC: A61B1/24
Filed: 1997-01-02
Abstract: Color/optical characteristics measuring systems and methods are disclosed. Perimeter receiver fiber optics/elements (7) are spaced apart from a central source fiber optic/element (5) and received light reflected from the surface of the object (20) is measured. Light from the perimeter fiber optics (7) pass to a variety of filters. The system utilizes the perimeter receiver fiber optics (7) to determine information regarding the height and angle of the probe (1) with respect to the object (20) being measured. Under processor control (20), the color measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence, and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe (1) may have a removable or shielded tip for contamination prevention.
Patent CA-2239730-A1 (CA)
Title: Formation of a refractive index grating
Inventor: KASHYAP RAMAN
IPC: H04B10/29
Filed: 1996-12-12
Abstract: An apodised refractive index grating is recorded in a photosensitive optical fibre by forming first and second component interference patterns with different pitches, that are recorded in the grating such as to result in apodisation. The component patterns (16, 17) are spatially in phase in a central region and move progressively out of phase towards the ends of the patterns. The patterns may be recorded sequentially or concurrently. The fibre may be stretched one or cyclically.