baber/WOPTO huggingface dataset:
Patent CA-2162385-C (CA)
Inventor: BRODSKY PHILIP HYMAN
IPC: A62D3/00
Filed: 1994-06-16
Granted: 1998-11-03
Abstract: A process for the in-situ remediation of a contaminated heterogeneous soil region comprising: (a) introducing material for treating contaminants in a contaminated heterogeneous soil region into at least one liquid permeable region within the contaminated heterogeneous soil region to form at least one treating zone within the contaminated heterogeneous soil region, (b) transmitting direct electric current through at least one low permeability soil region within the contaminated heterogeneous soil region between a first electrode and a second electrode having opposite charge, wherein (i) the first electrode is located at a first end of the contaminated heterogeneous soil region and the second electrode is located at the opposite end of the contaminated heterogeneous soil region or (ii) the first electrode is located at a first end of each of the low permeability soil regions and the second electrode is located at the opposite end of each of the low permeability soil regions, (1) to cause an electroosmotic flow from the second electrode to the first electrode, (2) to cause an electromigratory movement of ionic contaminants in a direction toward the electrode of opposite charge, or (3) to cause an electroosmotic flow from the second electrode to the first electrode and an electromigratory movement of ionic contaminants in a direction toward the electrode of opposite charge, and (e) applying a hydraulic gradient across the contaminated heterogeneous soil region to cause a hydraulic flow from the high pressure end of the, contaminated heterogeneous soil region to the low pressure end of the contaminated heterogeneous soil region.
Patent CA-2166059-C (CA)
Inventor: STROM ROBERT MICHAEL
IPC: A61P37/00
Filed: 1994-05-26
Granted: 2005-08-16
Abstract: La présente invention se rapporte à de nouveaux intermédiaires et procédés qui sont utilisés dans la préparation de certains dérivés de pipéridine antihistaminiques de la formule (I), dans laquelle W représente -C(=O)- or -CH(OH)-; R1 représente hydrogène ou hydroxy; R2 représente hydrogène; R1 et R2 réunis forment une seconde liaison entre les atomes de carbone porteurs de R1 et R2; n est un nombre entier de 1 à 5; m est un nombre entier de 0 à 1; R3 représente -COOH ou -COOalkyle, où la fraction alkyle possède de 1 à 6 atomes de carbone et est droite ou ramifiée; chaque chaînon de A représente hydrogène ou hydroxy; l'invention se rapportant également à des sels pharmaceutiquement acceptables de ces dérivés et à des isomères optiques individuels de ces dérivés, à condition que, lorsque R1 et R2 sont réunis pour former une seconde liaison entre les atomes de carbone porteurs de R1 et R2 ou lorsque R1 représente hydroxy, m soit un nombre entier égal à 0.
Patent CA-2167123-C (CA)
Title: Disc opener
Inventor: HERMAN ALVIN
IPC: A01C7/00
Filed: 1996-01-12
Granted: 2003-12-09
Abstract: A disc-type opener and seeder useful in direct seeding during zero-till operations includes index/presser wheels to prevent hairpinning of trash etc. A soil retainer wheel cooperates with the disc to close the furrow cut by the disc and to cover the seeds placed therein. All of the above wheels are adjustably mounted to a main frame together with a spring-biased furrow finishing wheel. Improved seed supply means designed to reduce seed bounce are provided. Multiple units are mounted to a tool bar. Minor modifications permit the opener/seeder to be installed on the shank of a chisel plow air seeder.
Patent CA-2174319-C (CA)
Inventor: BROCKSTEIN ALLAN J
IPC: G01C21/16
Filed: 1995-09-11
Granted: 1998-03-31
Abstract: L'appareil de navigation permettant une meilleure détermination de l'attitude est destiné à être utilisé sur une plate-forme mobile. Il combine les données d'une unité de navigation inertielle de plate-forme et les données des phases des porteuses d'une pluralité de signaux de satellites GPS reçus en une pluralité de points de réception sur la plate-forme, dans le but d'obtenir des estimations des états de navigation de la plate-forme. L'appareil de navigation comprend un processeur qui estime par calcul les états à partir d'entrées comprenant (1) une ou plusieurs différences doubles de phases mesurées calculées à partir des phases mesurées des porteuses des signaux des satellites, (2) la position estimée de la plate-forme, (3) les positions estimées des points de réception, et (4) les positions des satellites. Une différence double de phase est définie comme étant la différence dans les différences de phase pour des signaux reçus de deux satellites et une différence de phase est définie comme étant la différence de phase de la porteuse d'un signal de satellite reçu en deux points de réception. La détermination de l'attitude et de la navigation se fait par le procédé par filtre de Kalman, dans lequel les grandeurs observables comprennent les différences doubles de phases mesurées, et chaque différence double de phase prévue est obtenue par l'intervention sur le vecteur d'état de Kalman d'une matrice d'observation définie par une linéarisation des équations rapportant la différence double de phase aux états de navigation.
Patent CA-2175610-C (CA)
Inventor: TANG XIAOMING
IPC: G01V1/50
Filed: 1996-05-02
Granted: 1999-06-01
Abstract: A method of determining the acoustic propagation velocity of an earth formation penetrated by a wellbore by processing signals from an array acoustic wellbore logging tool. The tool includes a transmitter and a plurality of receivers axially spaced apart from the transmitter. The method includes the steps of combining signals generated by ones of the receivers in response to acoustic energy propagated through the wellbore from the transmitter, to generate a synthesized signal corresponding to another one of the receivers. The step of combining includes time shifting signals from the ones of the receivers by an amount corresponding to a predetermined velocity for each propagation mode and the axial distance between the ones of receivers and the other receiver. The synthesized signal is compared to the signal generated at the other receiver in response to the acoustic energy to determine a degree of correspondence between the synthesized signal and the received signal. The values of velocity for each propagation mode are varied, a signal is again synthesized and compared to the measured signal, and these steps are repeated until the degree of correspondencereaches a maximum. The values of velocity at which the degree of correspondence is a maximum are determined to be the acoustic propagation velocities of the earth formation for each of the different modes of propagation. In a preferred embodiment of the invention, the step of comparing includes generating an object function of the difference between the synthesized signal and the received signal. The object function is minimized by the Levenberger-Marquardt algorithm to determine the values of velocity for each propagation mode.
Patent CA-2175981-C (CA)
Inventor: BOREL EDOUARD
IPC: B65H20/24
Filed: 1996-05-07
Granted: 2000-05-16
Abstract: The invention refers to a feeding device for processing a web (3) in a station in which said web is in a standstill position, this device comprising a first drive cylinder (10) around which oscillates upstream then downstream a second swivel cylinder (20) fitted on two sidewise levers (52-53, 55) pivoting on the axle (12) of the said drive cylinder. The driving pinion (29) ofthe swivel cylinder (20) is geared with a toothed wheel (14) of equal diameter associated with the axle (12) of the drive cylinder. This device comprises moreover a counterweight (80) carried in rotation by a pinion (76) presenting a identical diameter with the one of the toothed wheel (14) of the axle (12) of the drive cylinder (10), with which wheel (14) this pinion (76) is geared as well, the said counterweight being fitted on an arm (70) pivoting around the axle (12) and connected by a mecanism (54, 60, 61, 62, 65) to the levers (52-53) in order to oscillate in the opposite direction of the swivel cylinder (20). The counterweight (80) presents moments of inertia with regard to its axis of central rotation and with regard to the axis of the arm (70) identical with those of the swivel cylinder (20).
Patent CA-2188107-C (CA)
Inventor: RING MICHAEL E
IPC: B60T17/08
Filed: 1996-10-17
Granted: 2000-09-19
Abstract: Air pressure actuated and hydraulic applied railway car parking brake system includes air source to actuate.  A control valve receives air from source to initiate air communication.  Pneumatic to hydraulic pressure intensifier receives air in first chamber therein from valve.  A second intensifier chamber is connected at open first end thereof with partially open second end of first chamber.  Hydraulic fluid is disposed in second chamber adjacent closed second end thereof.  A force transmitting cylinder, in fluid communication with second chamber, exerts force on brake beam carrying brake shoes thereon which are brought and maintained in frictional engagement with a respective surface of tread portion of a pair of wheels during system operation.  A piston member, disposed for reciprocal movement in first chamber, is linearly displaced when a first surface thereof is acted on by air communicated to intensifier.  A first seal, around peripheral portion of piston, contains air communicated to intensifier in portion of first chamber located between the first surface and first end of first chamber.  A stem member, disposed to move linearly in first and second chambers, is connected at first end thereof to second surface of piston.  Such stem is linearly displaced in first and second chambers by piston movement.  A second seal, around peripheral second end portion of  stem, retains hydraulic fluid in second chamber between second end of stem and second end of second chamber to communicate hydraulic fluid to force transmitting cylinder, by linear displacement of stem, and exert force on beam carrying shoes.
Patent CA-2191616-C (CA)
Inventor: JANOT DENIS
IPC: A23P1/12
Filed: 1996-11-28
Granted: 2004-11-09
Abstract: Apparatus for extruding a food product substance and for cutting the extrudate from a die of an extrusion head of the extruder into pieces has a rotary shaft and a knife which is affixed to the shaft and which has two blades, each blade having a cutting edge, wherein the two blades are offset one from another so that one blade extends from the axis of shaft rotation for a distance from the shaft rotation axis for a distance greater than that of the other blade and wherein the shaft and blades and the blade cutting edges are configured and positioned with reference to the extrusion head and wherein each die is positioned so that upon exit of extrudate from each die and upon rotation of the shaft, one blade cutting edge cuts and incises a part of the extrudate substance and the other blade cuts the extrudate substance to obtain a cut piece so that the cutting by the two blades provides a cut piece having an incised part.
Patent CA-2198781-C (CA)
Title: Procede de fabrication de selegiline
Inventor: CYRUS RICHARD
IPC: C07C209/60
Filed: 1995-09-02
Granted: 2004-08-24
Abstract: Procédé de fabrication de chlorhydrate de sélégiline consistant à faire réagir la R-(-)-N, alpha -diméthyl-phényléthylamine avec la 3-bromo-1-propine, caractérisé en ce qu'on fait réagir les substances dans un rapport molaire d'environ 2/1, à une température comprise entre 30 et 50  DEG C, dans un mélange de solvants formé d'un hydrocarbure aromatique et d'eau, sans catalyseur, et en ce qu'on isole la sélégiline de la phase organique et qu'on la transforme en chlorhydrate.
Patent CA-2199021-C (CA)
Title: Method and apparatus for classifying materials
Inventor: CLARK BRIAN K
IPC: B07B1/15
Filed: 1995-06-21
Granted: 1999-08-10
Abstract: A disc screen (10) for classifying material by size. The disc screen comprises a frame (12), a plurality of shafts (16) mounted on the frame (12) parallel with one another, a first stage including discs (118) mounted on the shafts in a substantially coplanar row, each of the discs (118) having a perimeter shaped to maintain the space between discs substantially constant during rotation; and a second stage including discs (118a) mounted on the shafts in a substantially coplanar row, each of the discs (118a) having a perimeter shaped to maintain the space between discs substantially constant during rotation. A  receiving section (130) agitates debris while the debris moves at an angle up to a given elevation. A roll over section (132) drops the materials down to a discharge position for feeding onto a discharge section (134). The materials are dropped from the roll over so that the debris either falls vertically or flips over further promoting separation. The discharge section (134) again agitates the debris while moves up a second incline until the larger debris discharges out a rear end (126).
Patent CA-2199960-C (CA)
Title: Improved iron-based powder compositions containing green strength enhancing lubricants
Inventor: LUK SYDNEY
IPC: B22F1/00
Filed: 1995-09-11
Granted: 2000-11-14
Abstract: Metallurgical powder compositions are provided which contain a metal powder in admixture with a solid, particulate polyether lubricant. The incorporation of the polyether lubricant enhances the green strength properties of compacted parts made from the powder compositions, and generally reduces the ejection forces required to remove the compacted part from the die cavity.
Patent CA-2200977-C (CA)
Title: Compositions buccales aqueuses
Inventor: DIXON CLOYD JR
IPC: A61Q11/00
Filed: 1995-08-21
Granted: 2001-08-14
Abstract: La présente invention se rapporte à des compositions buccales aqueuses et à leurs procédés d'utilisation. Ces compositions présentent une activité antimicrobienne améliorée, ce qui leur permet de réduire les bactéries buccales, la mauvaise haleine et de promouvoir l'hygiène bucco-dentaire.
Patent CA-2208150-C (CA)
Inventor: PORTER ALVIN LEE
IPC: C01F11/18
Filed: 1997-06-18
Granted: 2004-03-23
Abstract: A method for the manufacture of precipitated calcium carbonate from impure calcium oxide of improved colour is disclosed. The method comprises admixing impure calcium oxide with an aqueous solution consisting essentially of a salt of at least one compound selected from the group consisting of organic amines of the formula RNH2 and alkanolamines of the formula NH2(R1OH), where R and R1 are alkyl groups of 1-4 carbon atoms, and hydrochloric or nitric acid. The solution obtained is treated with a reducing agent e.g. sodium hydrosulphite, separated from insoluble matter and then treated with carbon dioxide or the carbonate of the amine or alkanolamine. Preferably, the amine of the salt and of the carbonate are the same, and the salt is used in at least the stoichiometric amount to dissolve the lime.
Patent CA-2209294-C (CA)
Title: Trousers with hip protectors
Inventor: KJAERGAARD FINN
IPC: A41D13/015
Filed: 1995-01-05
Granted: 2000-11-21
Abstract: Flexible hip protectors (1) of an approximately domed shape are located and fixed in positions confronting the neck of either femur in so-called usual pants (21) so as to cover corresponding portions of the necks of the femurs.  Therefore, if a person wears the pants (21), the hip protectors (1) are always located at exact positions so as to protect the necks of the femurs.  Accordingly, the pants (2) with the protectors (1) are effective for wearing the protectors (1).
Patent CA-2211085-C (CA)
Inventor: FORSYTH DAVID G
IPC: E21B41/00
Filed: 1997-07-21
Granted: 2006-02-07
Abstract: The invention comprises a casing tool having a lateral root premachined therein and plugged with cement. A wear bushing is also positioned within the entrance to the root from the uphole side of the tool to prevent distortion or even destruction of the root while the lateral is being drilled. Subsequent to the lateral being drilled the wear bushing is removed and a liner is run which is then sealed to the bore of the root with conventional sealing techniques, thus avoiding the need to seal oval holes.
Patent CA-2216979-C (CA)
Inventor: WESTCOTT NEIL D
IPC: C07H1/08
Filed: 1996-03-29
Granted: 2000-12-26
Abstract: A process is described for extracting secoisolariciresinol diglycoside (SDG) and cinnamic acid derivatives from flaxseed which comprises contacting a substantially oil-free flaxseed meal with an aliphatic alcohol solvent, e.g. a mixture of methanol or ethanol with water, to extract phenolics comprising SDG and cinnamic acid derivatives into the alcohol solvent and separating residual solids from the phenolic-rich alcohol solvent. The phenolic-rich alcohol solvent is concentrated by removing solvent therefrom and the phenolic-rich extract obtained is subjected to a base-catalyzed hydrolysis to liberate lignans and cinnamic acid derivatives therefrom in a non-complexed form. Thereafter, the hydrolyzed extract is fractionated into a fraction containing SDG and a fraction containing cinnamic acid derivatives. Either or both of these fractions are then subjected to chromatographic separation to thereby obtain SDG and/or cinnamic acid derivatives at a purity of greater than 95 %.
Patent CA-2218215-C (CA)
Inventor: FREYMAN CHRISTOPHER A
IPC: G02B6/42
Filed: 1996-04-22
Granted: 2001-10-09
Abstract: Ensemble diode laser amélioré comprenant une diode laser (52) montée directement sur un refroidisseur thermoélectrique compact (54), monté sur un dissipateur de haleur (58). Un joint d'isolation thermique (64), monté autour du refroidisseur thermoélectrique (54) isole le refroidisseur thermoélectrique de l'environnement ambiant, évitant la formation de condensation sur la face froide (102) du refroidisseur thermoélectrique. Un manchon (66) maintient la diode laser de façon concentrique dans l'alignement optique correct par rapport à l'ensemble optique, tout en assurant l'isolation thermique et électrique de la diode laser. Un joint à conduction thermique (92), monté autour de la circonférence de la fenêtre de la diode laser, renvoie la chaleur provenant du dissipateur de chaleur à la fenêtre afin d'éviter la formation de condensation sur celle-ci. La diode laser est le seul composant refroidi par le refroidisseur thermoélectrique. Comme une partie de la chaleur transférée par le refroidisseur thermoélectrique est utilisée pour réchauffer la fenêtre de la diode laser, il n'est pas nécessaire de prévoir un élément de chauffage séparé. Ce système accroît l'efficacité globale de l'ensemble diode laser.
Patent CA-2227601-C (CA)
Title: Outils resonants pour puits de forage
Inventor: TUBEL PAULO S
IPC: E21B7/24
Filed: 1997-05-28
Granted: 2004-07-27
Abstract: La présente invention se rapporte à un système permettant d'exécuter une opération appropriée dans un puits de forage au moyen d'un résonateur (74). Ledit système comporte un résonateur (74) conçu pour générer des impulsions d'énergie mécanique, un dispositif d'engagement (92) conçu pour engager de manière sure un objet à l'intérieur du puits de forage et un capteur (68a) destiné à détecter la réponse de l'objet aux impulsions générées par le résonateur (74). Ledit résonateur (74) est placé en un point approprié du puits de forage et le dispositif d'engagement (92) est fixé à l'objet. On actionne le résonateur (74) à une fréquence appropriée à la génération d'impulsions susceptibles de pénétrer ledit objet. Le capteur (68a) détecte la réponse de l'objet aux impulsions ainsi induites et produit une information utilisée pour ajuster la fréquence de fonctionnement. Ledit système, mis en oeuvre suivant différentes configurations, peut servir à repêcher et à libérer un train de tiges bloqué, à faciliter le perçage de puits et à exécuter une opération de cimentation. Un circuit de commande (78) gère le fonctionnement du système conformément à des instructions programmées.
Patent CA-2228745-C (CA)
Title: Method for cooling and preservation of fish and products made from fish subjected to such treatment
Inventor: MJELDE AGNAR
IPC: A23L17/00
Filed: 1996-08-07
Granted: 2006-07-11
Abstract: The present invention relates to a method of cooling and preservation of fis h and fish products from thus treated fish. The fish is cooled by means of a cooling medium in tanks, containers or other suitabl e facilities, and also subjected to treatment of at least one preservative agent. The fish is subjected to a combined treatment of a cooli ng medium and a preservative agent and said treatment is performed by means of a cooling medium comprising C1-4 monocarboxylic acids and/or mono/di or tetra salts of alkali- and/or earth alkali salts of said acids. The cooling is performed by means of a cooling medium, being an aqueous solution of C1-4 monocarboxylic salts in a concentration of 5-30 weight % salts and 95-70 % weight water, or binary ice comprising a preservative agent. The most preferred brine or binary ice comprises potassium formate and/or potassium diformate and/or formic acid. The pH of the brine can be adjusted by addition of an acid or disalt being the equivalent of the monosalt applied in the brine.
Patent CA-2229355-C (CA)
Title: Method for controlling refrigerant based air conditioner leaving air temperature
Inventor: GROENEWOLD PETER E
IPC: F24F11/76
Filed: 1998-02-13
Granted: 2006-04-18
Abstract: Precise control of the temperatures of leaving air in an air conditioning system and of leaving water in a water heating system are obtained with a throttling valve whose flow rate is modulated with an electric signal. The high pressure outlet of a refrigerant compressor is coupled jointly to the inlet of the valve and to the refrigerant inlet of a first condenser and the outlet of the valve is coupled jointly to the refrigerant outlet of the first condenser and to the refrigerant inlet of a second condenser. A programmable controller receives input signals corresponding to one or more entering media characteristics, such as dry bulb temperature, dew point temperature, and percent humidity and produces control signals that modulate them valve flow rate to thereby maintain the leaving air or water temperature at a specified set point with high precision.
Patent CA-2231801-C (CA)
Inventor: DALBORG JOHANNA
IPC: C12N9/96
Filed: 1996-09-27
Granted: 2010-07-27
Abstract: The present invention relates to a process for improving the in vivo function of a polypeptide by shielding exposed targets of said polypeptide, by immobilizing the polypeptide by interaction with a group-specific adsorbent carrying ligands manufactured by organic-chemical synthesis, activating the biocompatible polymer, conjugating the thus activated biocompatible polymer to the immobilized polypeptide, and thereafter eluting the conjugate from the adsorbent. The present invention further relates to conjugates of a polypeptide and a biocompatible polymer obtainable by the present process, and use of said conjugates as medicaments. Specifically, the polypeptide is factor VIII, the von Willebrand factor or factor IX. The invention is particularly advantageous for conjugates where the polypeptide is factor VIII with a high specific activity using monomethoxy polyalkyleneoxide (mPEG) as the biocompatible polymer.