baber/WOPTO huggingface dataset:
Patent CA-2226010-A1 (CA)
Title: Nmr system and method for formation evaluation using diffusion and relaxation log measurements
Inventor: MARDON DUNCAN
IPC: G01V3/32
Filed: 1996-06-20
Abstract: A simple, pore-level model for diffusion and NMR relaxation of oil-water mixtures in water wet pores has been developed. In addition to lending physical insight into the relaxation time behavior of mixed pore fluids, the model can be used to generate a practical tool for interpreting diffusion log data, i.e., a T2 vs. D cross plot. Locating points on the cross plot simultaneously yields the near wellbore water saturation and the rock pore size. For light oils, T2 is shown to be mainly a pore size indicator whereas D  is controlled mainly by Sw. The pore size "resolution" decreases as oil viscosity and/or Sw decreases. A preliminary verification of the model has been made with limited core data and the results of applying the model to interpreting NMR log data are encouraging. The capability to separate the effects of pore size from fluid saturation on NMR response of pore fluids indicates an important potential advantage of the T2 and D measurement combination over standard T2 logging for characterizing formation pore size and related reservoir flow properties.
Patent CA-2233473-A1 (CA)
Inventor: IGARASHI KOUICHI
IPC: G02B27/42
Filed: 1998-03-27
Abstract: A semiconductor laser light source includes: a semiconductor laser array which emits laser beams whose polarization planes are parallel to each other and whose divergent angles .theta.z and .theta.x in two orthogonal directions satisfy an inequality .theta.z > .theta.x; a cylindrical lens which converges the laser beams emitted from the semiconductor laser array in a direction that decreases the divergent angle .theta.z; a wave plate which controls the direction of polarization so that the polarization planes of the laser beams having passed through the cylindrical lens are at 90 degrees to each other; a birefringent optical element which merges by the birefringent effect the optical paths of the laser beams having passed through the wave plate; and a light emitting surface which converges the laser beams merged by the birefringent optical element in a direction that decreases the divergent angle .theta.x.    Thus, the efficiency of merging the laser beams and the efficiency of joining the laser beams to the succeeding optical system can be greatly improved.
Patent CA-2235425-A1 (CA)
Inventor: SCOTTO ALAIN
IPC: B08B3/12
Filed: 1998-04-21
Abstract: Cleaning a metallic component from a foundry comprises: (a) arranging the component (7) to be treated is on a support plate (6) in a vessel (5) filled with a liquid (8); (b) placing at least one vibration generator (2, 3), functioning at a frequency of between 15 and 40 kHz, in contact with the component (7); and (c) by means of the generator (2, 3), exciting the component (7) to a natural mode of vibration that puts the liquid (8) steeping the heart of the component (7) into cavitation. The device for putting this method into service is also claimed and comprises a vessel (5) placed on a table (4) integral with the framework (1) of a machine. The vessel (5) is provided with an elastic support (6) or an activator (14) on which the component (7) to be treated is placed. The assembly is steeped in a liquid (8) put into circulation by a pump connected to the vessel (5). The framework (1) also supports at least one vibration generator (2, 3) in contact with the component (7) and able to excite it with the appropriate mode of vibrations.
Patent CA-2235993-A1 (CA)
Inventor: STOTTSBERRY JAMES
IPC: F16H19/02
Filed: 1998-04-27
Abstract: A push-pull chain garage door operator system includes a drive module  and an elongated guide  rail  for  a push-pull chain connected to a carriage assembly mounted on the guide rail.   The chain is engaged with a sprocket mounted on a generally  rectangular  plate-like  molded  plastic  support member which includes a serpentine idle chain storage slot formed therein.   The support member is releasably connected to a stamped metal frame plate for covering the storage slot and  supporting  the  drive  module.    The  bottomwall  of  the support member supports a right angle speed reduction drive unit connected to a drive motor retained in a cradle formed by an integral boss on the support member. The motor and a starting capacitor therefor are retained in respective cradle portions  of  the  boss  by a  removable  retaining  strap.   A control  circuit board is mounted on  the  underside  of  the support  member  and  a  two-part shroud  for  the  operator mechanism  is   releasably  secured  to  the   frame  plate.
Patent CA-2236566-A1 (CA)
Inventor: FARRAR JERRY L
IPC: E06B3/30
Filed: 1998-05-01
Abstract: A perforated metal sheet is removably mounted to a bracket fastened around a window on the inside of a vehicle.  The perforations are selected to allow a person inside the vehicle to see out, while providing a display surface for printed indicia that may be viewed from the inside of the vehicle.  The printed indicia may be provided on both sides of the sheet so the sheet can be removed and turned over when one side of the sheet is vandalized.
Patent CA-2237358-A1 (CA)
Title: Durable pavement marking tape with screencoated polyurethane topcoat
Inventor: GOEB SIEGFRIED RAINER
IPC: E01F9/50
Filed: 1996-10-16
Abstract: A pavement marking material comprises a flexible base sheet (11) that is conformable to an irregular pavement surface. A durable, wear-resistant polymeric top layer (18) which is discontinuous in two directions is affixed to one surface of the base sheet. The polymeric top layer is discontinuous in both the cross web direction and the down web directions. This discontinuity in two directions is obtained by means of a continuous process such as a rotary screen printing process. A rotary screen printing process is much more efficient if the composition to be coated has an infinite pot life at application temperatures. This infinite pot life is attained through the use of a blocked isocyanate crosslinker. The discontinuous nature in two directions of the polymeric top layer provides for increased initial conformance of the pavement marking to irregular pavement surfaces. The discontinuous nature of the polymeric top layer also reduces elastic tensile stresses which tend to build up in continuous top layers and cause adhesive failure. A plurality of particles, retroreflective microspheres and/or skid-resistant particles, are embedded in and protrude from the non-continuous top layer.
Patent CA-2241131-A1 (CA)
Inventor: AOYAMA HIROKAZU
IPC: B01J27/125
Filed: 1996-10-08
Abstract: The claimed manufacturing method for 1,1,1,3,3-pentafluoropropane comprises the first process, in which 1,1,1-trifluoro-3-chloro-2-propene is obtained by inducing a reaction between 1,1,1,3,3-pentafluoropropane and hydrogen fluoride in the vapor phase, and the second process,in which the 1,1,1,3,3-pentafluoropropane is obtained by inducing a reaction between 1,1,1-trifluoro-3-chloro-2-propene and hydrogen in the vapor phase, and 1,1,1-trifluoro-3-chloro-2-propene obtained in the first process is supplied to the second process after removing the HCl by-products.      This invention can provide a new economic manufacturing method of 1,1,1,3,3-pentafluoropropane with high yield and selectivity.
Patent CA-2243742-A1 (CA)
Inventor: MCKENZIE LEIGH J
IPC: E21C47/00
Filed: 1998-07-22
Abstract: A power mining shovel including a carbody, an upper frame rotatably mounted on the carbody, a dipper handle mounted on the upper frame for pivotal movement relative thereto, a dipper mounted on the dipper handle, a crawler track assembly supporting the carbody for movement over the ground, a motor which is mounted on the carbody and which has an output shaft, a drive train drivingly connecting the motor output shaft to the crawler track assembly, the drive train including a drive shaft drivingly connected to the crawler track assembly, and a propel transmission which is drivingly connected to the drive shaft and which is driven by the motor output shaft, and a disc brake apparatus operably connected to the drive train for selectively preventing rotation of the drive shaft.
Patent CA-2244517-A1 (CA)
Title: Pressure sensitive adhesive tape for golf and sport grip binding
Inventor: FONTANILLA DENNIS G
IPC: C09J7/20
Filed: 1998-08-05
Abstract: A pressure sensitive adhesive tape for bonding a golf grip to a shaft of a golf club.  The tape construction includes a carrier or substrate having a pressure sensitive adhesive on one side and an activatable adhesive on the other side.  A release liner may be applied to protect the adhesive layers.   The pressure sensitive adhesive is utilized to adhere the tape to the shaft of the club leaving the activatable adhesive on the outside of the tape.  In a preferred embodiment, the adhesive is activated using a soap-water mixture which causes the adhesive first to become slippery allowing application of the grip and then setting-up to bond the grip to the club.   Alternatively,  the  adhesive may be  activated using  a solvent.
Patent CA-2244540-A1 (CA)
Title: Carrier/tree processor unit for felling, delimbing and bucking trees
Inventor: FENTON DAVID S
IPC: A01G23/083
Filed: 1998-07-30
Abstract: A small loader-type carrier is used. The processor has a mount assembly which connects the carrier arms with the processor mast for lifting, lowering and tilting the mast backward and forward. The mount assembly can mechanically rotate the mast between vertical and horizontal positions. The mast carries a saw assembly, a drive roll assembly, a grapple arm assembly and a delimbing knife progressing from bottom to top. The roll assembly comprises an elongated drive roll which supports the tree stem from the bottom when the stem is horizontal. An idler roll clamps the stem to the drive roll and functions as a measuring wheel. The carrier/tree processor unit is designed to work in thinning operations.
Patent CA-2246695-A1 (CA)
Title: Threshing of harvested grain
Inventor: VISAGIE ANDRIE DIEDERICH
IPC: A01F11/06
Filed: 1997-02-18
Abstract: Ears, pods, or the like to be threshed are transported axially into an inclined threshing zone (16). Grain is liberated and falls through a sieve (24) forming a bottom of the threshing zone. Most of the lightweight material or chaff is carried to an exit (32) by means of a fan generated airflow stream. Grain and some chaff falling through the sieve (24) are collected in a trough (34) below the sieve. A fan generated auxiliary airflow stream (37) carries most of the remaining chaff to the exit (32). The larger portion of the grain slides down the trough (34) to exit at (36). The balance of the grain with virtually no entrained chaff exits the trough via an auxiliary grain exit (39). Transverse baffles (29 and 27), in tandem, opposing relationship, cause airflow to be circuitous to promote grain in preference to chaff to enter the exit (39). A final cleaning step may be performed in a cleaning apparatus (112).
Patent CA-2248464-A1 (CA)
Inventor: SORIMACHI KENICHI
IPC: C21C7/00
Filed: 1998-09-28
Abstract: Titanium killed steel sheets which are not troubled by nozzle clogging while they are produced in a continuous casting process, have few surface defects caused by cluster-type inclusions, and are highly rust resistant, and are formed from a melt of titanium killed steel that contains any one or two of Ca and metals REM in an amount of not smaller than 0.0005 % by weight, and wherein the steel contains major oxide inclusions of any one or two of CaO and REM oxides in an amount of from about 5 to 50 % by weight, Ti oxides in an amount of not larger than about 90 % by weight, and Al2O3 in an amount of not larger than about 70 % by weight.
Patent CA-2249117-A1 (CA)
Inventor: ARAKAWA JUN
IPC: B62D55/24
Filed: 1998-10-02
Abstract: Disclosed is a track belt for a snowmobile, which comprises a track belt main body, a core body arranged along a longitudinal direction of the track belt main body, reinforcing woven cloths disposed respectively in the outside and inside of the core body, cover layers for covering these reinforcing woven cloths and a plurality of horizontal rigid members placed at specified intervals in the longitudinal direction of the track belt main body and in the cross direction of the same.  Overlapping of the reinforcing woven cloth is disposed respectively in the outside and inside of the horizontal rigid members.  Reinforcing woven cloth is made by spirally winding a belt-like woven cloth having a specified width on a circumference of the track belt main body at a specified angle to the longitudinal direction of the track belt main body.          Reinforcing woven cloths are made of tire fabric cords.  A cord orientation angle of each of the tire fabric cords is set to a specified bias angle to the longitudinal direction of the track belt main body.          End of the reinforcing woven cloths are butt-joined at both ends so as to have substantially an endless structure.  A horizontal rigid member is disposed between the core body and the inner reinforcing woven cloth.  Alternatively, the inner reinforcing woven cloth of the core body is folded on the core body or the outer reinforcing woven cloth in the longitudinal direction of the track belt main body on the circumference of the same.  The folded part is disposed in the outside of the horizontal rigid member and in the vicinity of the side end part of the same.
Patent CA-2250888-A1 (CA)
Title: Two-stage separation process
Inventor: FORBESS RUSSELL G
IPC: B01D19/00
Filed: 1997-03-31
Abstract: A process is disclosed for producing an oxidized liquid effluent containing minimal dissolved gases therein, from a subcritical wet oxidation treatment system.  The oxidation mixture exiting from the treatment system is separated into a first oxidized liquid effluent and a first gaseous phase as the mixture a first separator vessel operated at a relatively low superatmospheric pressure. Sufficient pressure is maintained in the first gaseous phase to provide the motive force for transport to further treatment or discharge. The first oxidized liquid effluent flows to a second separator vessel operated at essentially atmospheric pressure, where remaining dissolved gases separate from the first oxidized liquid effluent. The second gaseous phase is discharged and the second oxidized liquid effluent is suitable for storage or further treatment. Provision for adjusting the pH of the oxidized liquid effluent during the separation process is also disclosed.
Patent CA-2252831-A1 (CA)
Title: Illuminated assembly for a switch/outlet
Inventor: APPELBERG GUSTAF T
IPC: H01H9/16
Filed: 1997-04-15
Abstract: An illuminating apparatus for a wall switch (20) or outlet (2) that has a pair of terminals (4, 5) across which an electric potential is available, including an electroluminescent lamp plate (17) having first and second electrode deposits (14, 15) on a surface thereof, and a contact plate (12) disposed between the wall switch (20) or outlet (2) and the electroluminescent lamp plate (17) and a back surface facing the switch (20) or outlet (2), the contact plate (12) having first and second conductors (3, 6), each of which pass through the contact plate (12) and one of the terminals (5), and the second conductor (6) contacting the second electrode deposit (15) and the other of the terminals (4).
Patent CA-2256657-A1 (CA)
Title: Portable convergent spray gun for applying coatings
Inventor: VAN WAVERN BETH
IPC: B05B7/06
Filed: 1998-12-18
Abstract: A wand with a convergent spray end effector is utilized in a portable coating system for roofs, skid proof walk-ways and the like and includes a system of transporting the resin and dry filler materials to the end effector by including a movable cart that is capable of being raised that carries the pumps, meters, eductor and its dry powder feeder and optional pressure pots for the resin and including the necessary hoses to convey the materials to the wand The wand includes the trigger and the necessary controls for effectuating the spray of the coating on the surface of the substrate.
Patent CA-2259222-A1 (CA)
Inventor: LYSSIKATOS JOSEPH PETER
IPC: A61P43/00
Filed: 1997-05-22
Abstract: Cette invention se rapporte à des composés représentés par la formule (I) où R¿1?, R¿2?, R¿3? et R¿4? sont définis dans les pièces descriptives de la demande de brevet. Cette invention se rapporte également à des compositions pharmaceutiques contenant ces composés de formule (I) et à des procédés pour inhiber chez un mammifère une croissance cellulaire anormale, comme dans le cas du cancer, en lui administrant des composés de cette formule (I).
Patent CA-2260965-A1 (CA)
Inventor: GRYGLEWSKY RICHARD
IPC: A61P7/02
Filed: 1997-07-11
Abstract: L'invention concerne les composés de formule (1) et leur utilisation pour la préparation de médicaments destinés au traitement de la thrombose.
Patent CA-2261664-A1 (CA)
Title: Perfected reactor for liquids purification
Inventor: MAGARAGGIA FLAVIO
IPC: B03D1/14
Filed: 1998-05-27
Abstract: The invention realises a reactor (1) for liquids purification comprising: a tank (2) containing the liquid to be purified; a plu-rality of upper injectors (3) suitable for in-troducing in the tank (2) said liquid to be pu-rified with an aeriform substance dispersed in it in the form of bubbles; one or more blades (40) arranged inside said tank (2) and connected with a rotating shaft (41); one or more intermediate injectors (17, 28) cooper-ating with said first interception means (21) suitable for sucking the liquid up and intro-ducing it again in the tank (2) in a lower position in comparison with said upper in-jectors (3). Said reactor comprises at least a low box (9), arranged at an intermediate height in said tank (2), suitable for receiv-ing the descending liquid (8, 19) during a purification phase, which is supplied with in-terception means (91) suitable for permitting the suction and the re-flowing of said liquid inside said tank (2).
Patent CA-2263845-A1 (CA)
Title: Method for preventing uncontrolled polymer flow in preform neck finish during packing and cooling stage
Inventor: KRISHNAKUMAR SUPPAYAN M
IPC: B29B11/14
Filed: 1997-08-18
Abstract: A method of reducing uncontrolled flow of a molten polymer during the packing and cooling stage of an injection molding cycle. A plurality of polymers are injected between a mold cavity and core for making a multilayer plastic article such as a preform, having an exterior layer of a first polymer and an interior layer of a second polymer. In a tapered region of the mold, a minimum width of the tapered region is selected to prevent the second polymer from developing an enhanced leading/trailing edge effect which causes the second polymer to reverse flow during the packing and cooling stage. The method is particularly useful for making preforms for blow molded containers, such as a ketchup container, having a relatively long and thin neck profile. In addition, the method maintains the interior (barrier) layer a minimum distance from the top sealing surface of the preform, in order to prevent defective heat-bonded seals.
Patent CA-2264561-A1 (CA)
Inventor: UMANA JUAN P
IPC: A61B17/03
Filed: 1998-06-25
Abstract: L'invention concerne un appareil (16) de réparation d'une valvule cardiaque ayant des valves, qui comprend une pince (16) capable de pincer et d'effectuer la coaptation des valves de la valvule. De préférence, la pince (16) présente des mâchoires (30) qui saisissent et immobilisent les valves. On introduit ensuite une agrafe (32) pour effectuer la coaptation des valves. L'appareil (16) est particulièrement utile pour réparer la valvule mitrale afin de traiter la régurgitation mitrale.
Patent CA-2264599-A1 (CA)
Title: Calcul informatique flexible aux pannes/tolerant aux pannes
Inventor: MCCOLLUM JAMES D
IPC: G06F11/20
Filed: 1997-09-16
Abstract: Le transfert de données en direction d'éléments de calcul (14a, 14b) est synchronisé dans un système informatique (10) qui contient les éléments de calcul en question et des contrôleurs (12) qui fournissent les données à partir de sources de données aux éléments de calcul. Une requête de données provenant d'un élément de calcul (14a, 14b) est interceptée et transmise aux contrôleurs (12). Au moins un premier contrôleur répond en transmettant les données requises à l'élément de calcul et en indiquant de quelle manière un second contrôleur va répondre à la requête interceptée.
Patent CA-2266120-A1 (CA)
Inventor: NEGRE GUY
IPC: F01B29/10
Filed: 1997-09-19
Abstract: The invention concerns the installation in vehicles and more particularly in urban buses and service vehicles (taxis or the like) equipped with cleansed or pollution abating engines with independent combustion or expansion chamber and at a constant volume (2) of an on-board compressor driven by an electric (or other) motor, for filling the high pressure compressed air reserves (23) of the vehicle when the vehicle is not running and the energy supply of said electric motor is not on board. The invention is useful for cleansed or pollution abating vehicles.
Patent CA-2266196-A1 (CA)
Title: Uv absorbing container glass compositions
Inventor: FENSTERMACHER JAMES E
IPC: C03C3/087
Filed: 1999-03-19
Abstract: A container glass composition that reduces U.V. light transmission below a wavelength of about 400 nanometers, the composition having melting and forming properties similar to soda-lime-silica glass and containing SiO2, CaO, MgO, K2O, SO-3, and a U.V.  absorbing amount of about 0.4 to 0.8 weight percent FeO + Fe2O 3, and about 2 to 4 weight percent of MnO + MnO2.
Patent CA-2268755-A1 (CA)
Title: Method for producing polymers containing carbamate units and the use thereof
Inventor: WEIGUNY SABINE
IPC: C08F8/00
Filed: 1998-02-04
Abstract: The invention relates to a method for producing polymers containing carbamate units, wherein polyethylene imines or polymers containing vinyl amine units of formula (III) in which R1 = H or C1-C6-alkyl are made to react with halogen formic acid esters. The invention also relates to the use of the polyethylene imines containing carbamate groups thus obtained or polymers containing vinyl carbamate units as retention agents, dehydrating agents, flocculants and fixing agents in the production of paper, as a protective colloid for the production of aqueous alkyl diketene dispersions and as a dispersing agent for the production of accumulated aqueous filling material slurries.
Patent CA-2269530-A1 (CA)
Inventor: YAMAGUCHI HIDEHIKO
IPC: G06F3/033
Filed: 1998-09-03
Abstract: L'invention porte sur un système d'affichage constitué d'une feuille (20) dans laquelle sont entrées des informations, d'un détecteur (10) de position de coordonnées tel qu'un panneau tactile pouvant détecter une position d'entrée sur la feuille (20), ce panneau étant formé au dos de la feuille et séparé de celle-ci, et d'un ordinateur (104) vers lequel des données de sortie provenant du détecteur (10) de position de coordonnées sont transférées pour traiter les informations introduites dans la feuille (20). Lorsque la feuille (20) est utilisée comme écran de projection, l'ordinateur (104) est raccordé à un projecteur (106) qui projette sur celle-ci les informations d'entrée. La feuille (20) comporte de préférence une pluralité de zones d'entrée d'informations.
Patent CA-2269925-A1 (CA)
Title: Iterative channel estimation
Inventor: YAN RAN-HONG
IPC: H04L25/02
Filed: 1999-04-26
Abstract: The invention includes method and apparatus for estimating channel impulse response and data in a signal transmitted over a channel in a communication system. The channel impulse response is estimated and then, using the estimated channel impulse response, the data in the signal is estimated. The output is then fed back to the channel impulse response estimator and the channel impulse estimation is repeated. The data estimation and channel impulse response estimation may be iterated a number of times. The channel impulse response estimating step uses correlative channel sounding.