baber/WOPTO huggingface dataset:
Patent CA-2217028-C (CA)
Title: Recovery of acetic acid from dilute aqueous streams formed during a carbonylation process
Inventor: SCATES MARK O
IPC: B01J39/04
Filed: 1996-03-22
Granted: 2007-09-25
Abstract: A method is provided to improve the quality of recycle of certain residues b y modifying the separation of alkanes and alkane-like materials and carbonyl-containing impurities from the recycle during the manufacture of acetic acid by the carbonylation of methanol. The improvement comprises partitioning the residues by the addition of water obtained from aqueous streams containing up to 50 wt.% acetic acid and which have been treated in a catalytic distillation unit to react t he acetic acid with methanol to form recyclable methyl acetate and water and wherein the water is separated from the organics by distillation.< /SDOAB>
Patent CA-2220482-C (CA)
Title: Emetteur a activation sonore
Inventor: ORLOFF LESLIE M
IPC: G08B1/08
Filed: 1996-05-06
Granted: 2001-07-31
Abstract: L'invention se rapporte à un système télé-avertisseur dans lequel l'émission d'un signal acoustique provenant d'un premier avertisseur (1) est détectée par un détecteur (5) de signal acoustique qui déclenche l'émission d'un signal de radiofréquence par l'émetteur de radiofréquence (11). Un récepteur (15, 16) de radiofréquence qui reçoit le signal active un second avertisseur (23, 24) situé à distance du premier afin que ce second avertisseur émette un signal audible ou visuel. De préférence, le signal de radiofréquence est codé et décodé au niveau du récepteur, et si le premier avertisseur peut émettre deux signaux acoustiques différents, le signal émis est codé en fonction du signal acoustique émis et le récepteur-décodeur déclenche au niveau du second avertisseur l'émission d'un signal audible ou d'un signal visuel en fonction du codage du signal émis.
Patent CA-2221252-C (CA)
Inventor: LACHOCKI THOMAS M
IPC: A01N59/00
Filed: 1996-05-10
Granted: 2004-08-17
Abstract: La présente invention décrit une pastille d'assainissement et de clarification à dissolution lente à utiliser dans de l'eau, par exemple, dans l'eau d'une piscine et composée des matières suivantes: environ 65 à environ 80 % de trichloro-s-triazinetrione, environ 4 à environ 12 % de tétraborate de sodium, environ 10 à environ 22 % de sulfate d'aluminium, et environ 1 à 5 % de glycolurile.
Patent CA-2223318-C (CA)
Inventor: SATO SHUNICHI
IPC: H01H1/04
Filed: 1997-12-02
Granted: 2004-08-03
Abstract: Disclosed is a structure of a sliding switch contact : The sliding switch contact has a movable contact and a fixed contact which are formed of a stainless steel, an Fe-Ni alloy, an Fe-Ni-Co alloy, or an Fe-Ni-Cr alloy. With such structure, a contact material is provided that is usable in a high-temperature oil contained within a transmission, an engine or a brake hydraulic system of an automotive vehicle.
Patent CA-2227377-C (CA)
Inventor: SHOFNER STAN
IPC: B65D81/32
Filed: 1996-07-23
Granted: 2001-10-02
Abstract: A two or more part dispenser (10) is provided having an elongated flexible housing (12) which defines an interior chamber. A disc(s) (20) is contained within the chamber (18), and is movable from a closed to an open position. I n its closed position, the disc(s) (20) divides the chamber (18) into two or more sub-chambers (22, 24), each of which contains a different liquid. A collar (26) is slidably mounted to the housing (12), and coaxially disposed around each disc (20) to maintain the disc (20) in its closed position. Upon  displacement of the collar (26) away from the disc (20) a finger (27) on the  collar (26) compresses the housing (12), and displaces the disc (20) to its open position thus allowing the two or more liquids in the sub-chambers (22,  24) to intermix together. A dispensing nozzle assembly (16) having an outlet  is fluidly connected by a fluid passageway to the housing chamber (18). A normally closed valve is positioned in series with this passageway so that when the valve is moved to its open position, liquid within the housing chamber (18) is dispensed out through the nozzle outlet.
Patent CA-2229323-C (CA)
Inventor: HIRSCH MARK J
IPC: C09D201/00
Filed: 1998-02-12
Granted: 2001-07-31
Abstract: An apparatus for reducing accumulation of toner from the surface of an electrode member in a development unit of an electrostatographic printing apparatus which includes providing a coating on at least a portion of the electrode member.
Patent CA-2236861-C (CA)
Title: Method for reducing the offset voltage of a hall device
Inventor: HAEBERLI ANDREAS
IPC: G01R33/07
Filed: 1997-09-09
Granted: 2004-03-23
Abstract: The method serves for dynamically compensating the offset voltage of a Hall device. The Hall device can have either a platelike structure with at least two contact pairs (AC, BD), or any other arrangement deriveable by conformal mapping. The contact pairs (AC, BD) are angled by e.g. 90.degree.. Each pair is supplied with a periodically alternating current whereby the phase shift of the supply currents corresponds to the spatial phase shift of the contact pairs and is e.g. 90.degree.. Superposition of the supplied currents results in a continuously spinning current vector in the Hall device. By measuring simultaneously the voltages (V AC, V BD) between corresponding terminals, a signal (V HO) consisting of the Hall voltage and a periodic offset voltage can be isolated. The offset voltage (V O) is eliminated by averaging the signal over at least one period.
Patent CA-2239748-C (CA)
Inventor: RYLL ROBERT LAWRENCE
IPC: E21B33/16
Filed: 1998-06-05
Granted: 2003-02-11
Abstract: A cementing plug has a plurality of body segments which are secured together, preferably by adhesive, to form a plug body.      Elastomer wipers are clamped between the body segments. This cementing plug may be readily made shorter or longer in length with an increased or decreased number of wipers. Elastomer covers only the wipers and not the plug body.
Patent CA-2240777-C (CA)
Inventor: GREEN STUART
IPC: A61K31/675
Filed: 1997-01-27
Granted: 2002-06-11
Abstract: The invention provides compounds of formula (I) :R1-OP(O)(OH)2, wherein R1 represents the non-hydroxy portion of a triazole antifungal compound of the type comprising a tertiary hydroxy group; or a pharmaceutically acceptable salt thereof. The compounds of the invention are useful in the treatment of fungal infections, and have good aqueous solubility.
Patent CA-2241789-C (CA)
Title: Method for transporting gas under pressure in the presence of a liquid film
Inventor: ROJEY ALEXANDRE
IPC: F15D1/06
Filed: 1997-11-12
Granted: 2007-01-02
Abstract: The invention concerns a method for transporting a fluid, for instance gas under pressure in a pipe while reducing head loss to a minimum, comprising the following steps: injecting into the pipe a fraction of the liquid with a predetermined flow rate so that the combination formed by the gas flow and the injected liquid fraction has the form of a ring-shaped control flow over at least the length of the pipe, and on delivery separating the injected liquid fraction from the gas under pressure.
Patent CA-2247083-C (CA)
Inventor: GRANTHAM H CRAIG
IPC: G08B15/00
Filed: 1997-02-20
Granted: 2000-04-11
Abstract: A method and apparatus for sequencing views retrieved from a spherical still image file (6) provide the viewer the perception of video performance with low bandwidth transmission. The method incorporates digital transmission (9) and automatic sequencing (7) of the playback of the view. The apparatus provides video-motion rate images via low bandwidth digital transmissions or small data files from a still image taken of an inanimate environment. The resulting method and apparatus allows the viewer to experience a video display of any environment (for example, real estate locations, malls, museums, and hotels) and view a "video" tour of the location through a low bandwidth transmission.
Patent CA-2247300-C (CA)
Inventor: CHOI HYUN-CHEUAL
IPC: C07D209/46
Filed: 1998-09-16
Granted: 2003-10-07
Abstract: Derivatives of (3-oxoisoindolin-1-ylidine)propandinitrile, and a method for preparing the derivatives. The (3-oxoisoindolin-1-ylidine)propandinitrile derivatives can be prepared easily and at low cost. Also, the derivatives show good heat resistance at a temperature required for manufacturing an electro-optic device, and can minimize light loss at a near infrared light wavelength range by substituting hydrogen of C-H bond by halogen atom. As a result, the derivative of the present invention are useful as an optical material for an electro-optic device. In addition, the (3-oxoisoindolin-1-ylidine)propandinitrile derivatives can be used as an intermediate for synthesizing a new compound having good electro-optic characteristics and heat resistance.
Patent CA-2249177-C (CA)
Title: Portioning apparatus
Inventor: WILD HANS-PETER
IPC: B65B5/10
Filed: 1998-10-05
Granted: 2001-03-20
Abstract: The present invention relates to a packing apparatus for bags in packaging containers, the apparatus comprising a conveying means for the packaging containers, an endless transportation means including receiving chambers in which respective groups of sheet bags are transported that are to form a partial filling in the packaging containers, and at least two discharge stations in which the bags corresponding to one partial filling are respectively discharged into the packaging containers at the same time, and to a corresponding method. According to the invention, the conveying means can transport at least two packaging containers side by side and the endless transportation means is provided in the area of the discharge stations with straight discharge sections in which at least two discharge stations are respectively arranged side by side.
Patent CA-2249538-C (CA)
Inventor: DIETRICH KARL WERNER
IPC: C08G18/50
Filed: 1997-03-10
Granted: 2006-10-03
Abstract: L'invention a pour objet un procédé de fabrication de mousses rigides renfermant des groupes uréthanne et, éventuellement, urée et isocyanurate, caractérisé en ce qu'une mousse rigide de polyuréthanne est obtenue en faisant réagir a) un polyisocyanate aromatique avec b) un composant polyol présentant en moyenne, au moins 3 atomes d'hydrogène réagissant aux isocyanates, et contenant 1) 30 à 80 % en poids d'un polyéther initié par une amine aromatique, de poids moléculaire 300 à 800, à base de 70 à 100 % en poids d'oxyde de 1,2-propylène et de 0 à 30 % en poids d'oxyde d'éthylène, 2) 10 à 40 % en poids d'un polyéther essentiellement initié par du sucrose, de poids moléculaire 400 à 1000, à base de 70 à 100 % en poids d'oxyde de 1,2-propylène et de 0 à 30 % en poids d'oxyde d'éthylène 3) 5 à 30 % en poids d'un polyéther initié par du propylèneglycol, de poids moléculaire 500 à 1500, à base de 70 à 100 % en poids d'oxyde de 1,2-propylène et de 0 à 30 % en poids d'oxyde d'éthylène, 4) du n-pentane et/ou du i-pentane comme agent d'expansion, 5) de l'eau, 6) éventuellement, des matières auxiliaires et des adjuvants, la somme des pourcentages en poids des composants 1), 2) et 3) étant égale à 100.
Patent CA-2255186-C (CA)
Inventor: BARILE JOHN
IPC: G06V30/224
Filed: 1998-12-02
Granted: 2008-05-06
Abstract: A bar code reader has an integrated scanning component module which is mountable on a printed circuit board. In one embodiment, the module may include the digitizer/decoder electronics, enabling the module to be used with a generic PCB. In some embodiments, the module includes a high speed optical scanning arrangement having an optical element which extends longitudinally of a flexible member, secured at one end. In other embodiments, the invention extends to a hand--held optical scanner having a scanning assembly, detector and data transmission coupling all mounted to a common printed circuit board, preferably located within a manually-graspable handle. In yet a further embodiment, an abuse-detector or accelerometer is provided for determining when the device is exposed to deceleration above a predetermined limit, and optionally for automatically shutting down applications programs and for providing a black-box-record of a short time frame before the device was exposed to an unexpected shock. Preferably, the reader is shock protected by a thermo-plastic elastomer housing section. An outgoing light beam is directed at a non-orthogonal angle relative to the PCB.
Patent CA-2257801-C (CA)
Title: Ensemble d'hemodiafiltration jetable
Inventor: SANDBERG LARS-OLOF
IPC: B01D61/30
Filed: 1997-06-13
Granted: 2004-08-24
Abstract: Ensemble d'hémodiafiltration jetable, stérile, destiné à être raccordé à une machine de dialyse comprenant un dialyseur (14) à canal d'écoulement sanguin extracorporel (19) et une conduite d'alimentation (10) en liquide de dialyse pouvant être raccordée au dialyseur. L'ensemble d'hémodiafiltration comprend une unité stérilisée constituée d'un raccord (28) pour flexible et d'un filtre stérile (27), ce raccord pour flexible étant agencé de façon à se raccorder, au niveau d'une extrémité, au canal d'écoulement extracorporel (19) par l'intermédiaire d'une pompe séparée (29; 30) et est pourvu d'un raccord en té à trois voies, au niveau de l'autre extrémité, de façon à raccorder cette dernière entre la conduite d'alimentation (10) en liquide de dialyse et le dialyseur (14).
Patent CA-2260167-C (CA)
Title: Assembly and process for forming double-strand monofilament line for use in flexible line trimmers
Inventor: PROULX RICHARD A
IPC: D01D5/08
Filed: 1997-01-30
Granted: 2005-03-22
Abstract: Assembly and process for forming flexible cutting line for rotary trimmers having two or more monofilament lines mounted on a common spool. The lines (10) are joined side-by-side by a severable bond. The process includes extruding one or more pairs of filaments and directing the strands together about a collecting guide (68) in a cooling quench bath (66). The collecting guide elevation within the bath is adjustable to vary the strength of the severable bond. The strands are stretched and heated for molecular alignment of the polymer chains. The strands are then heated in a relaxed disposition, wetted and gathered on spools (72).
Patent CA-2263472-C (CA)
Inventor: MEARS CHARLES W
IPC: B21D9/14
Filed: 1998-03-31
Granted: 2003-11-11
Abstract: Method and apparatus for producing a predetermined curvature in the flange (25a) and web of a structural member (25) including an indexing mechanism (4 5) and method for controlling the amount of curvature produced.
Patent CA-2264663-C (CA)
Title: Dual loop frequency and power control
Inventor: KEPLEY KEVIN PAUL
IPC: A23L27/00
Filed: 1997-08-22
Granted: 2004-11-09
Abstract: The invention is an improved phacoemulsification probe drive circuit for supplying electrical power to an ultrasonic transducer. The drive circuit has a power control loop (1412) and a frequency control loop (1413). The power control loop (1412) has a variable gain amplifier (1416) whose output is an input to a power amplifier (1417). After the power amplifier amplifies power, power is delivered to a transformer (1436) and, thereafter, to a transducer (1439). The voltage and current applied to the primary of the transformer are sensed to generate a signal proportional to the power (real or apparent), and the result is compared against a power command originating from a foot pedal. Once compared, the result of this comparison is sent to a first controller which acts upon the information by sending a corrective signal to the variable gain amplifier.
Patent CA-2271677-C (CA)
Inventor: HE ZHENGXU
IPC: G06F19/00
Filed: 1997-11-25
Granted: 2003-10-14
Abstract: Using a programmed, general purpose digital computer, biological effectiveness of synthesized chemicals is simulated. The synthesized chemicals are modelled by data structures that embody a relationship between chemicals of which the product chemicals are composed and reaction sequences under which the chemicals are combined to produce the synthesized chemicals. The modelling includes models in the form of data structures that represent experimentally performed or hypothetically specified synthesis procedures. The models are subjected to a simulation function that predicts feasibility of a specified synthesis procedure and the biological function of chemicals produced by the specified synthesis procedure. The simulation function operates on the models to produce simulation results. One or more product chemicals are synthesized according to the hypothetically specified synthesis procedures and are assayed to produce actual assay results. The simulated results are compared to the actual assay results while referencing a tolerance limit. The simulation function is changed until the comparison has a predetermined acceptability relationship with the tolerance limit.
Patent CA-2272653-C (CA)
Title: Procede et systeme fondes sur l'utilisation d'un laser pour la reparation ou la reconfiguration de circuits integres
Inventor: SUN YUNLONG
IPC: H01L21/768
Filed: 1997-10-29
Granted: 2004-02-17
Abstract: La présente invention concerne un procédé et un système permettant d'irradier un résist pour l'enlever de plusieurs emplacements cibles (150) d'au moins une puce à circuit intégré (12), au moyen d'impulsions de sortie laser (74, 94) dirigées individuellement. Dans un mode de réalisation, un circuit intégré (12), comprenant au moins une cible à attaquer (104, 106), telle que des liaisons conductrices (72, 92), est revêtu d'une protection anti-attaque (90) constituée d'un photorésist. Ensuite, des impulsions de sortie laser (94) individuelles correspondant à des paramètres prédéterminés sélectionnés pour irradier le résist sont dirigés, en fonction de données d'emplacement, vers plusieurs emplacements (150) du photorésist. Etant donné que l'irradiation du photorésist nécessite moins d'énergie que l'enlèvement par éclatement des liaisons, on peut utiliser des lasers ultraviolets de faible puissance (120) et leur longueur d'onde plus courte permet l'obtention d'un spot de sortie laser (98) plus petit. Etant donné que le procédé sans ablation ne génère aucun débris, un composant optique (148) peut être approché à moins de 10 millimètres de la couche de protection anti-attaque (90) pour focaliser les impulsions de sortie laser (94) afin que la taille du spot corresponde à moins de deux fois la longueur d'onde de la sortie laser (140). Ainsi, un avantage offert par ce mode de réalisation réside dans le fait qu'il permet aux fabricants de microcircuits de réduire l'espacement (28) entre les éléments de circuit (14). Après développement de la couche de photorésist (90), la cible à attaquer (92) accessible peut être attaquée pour permettre la réparation ou la reconfiguration du dispositif à circuit intégré. Dans un autre mode de réalisation, on peut utiliser des impulsions de sortie laser ultraviolet (74) d'une puissance légèrement plus élevée pour l'ablation d'une couche de résist (70) de protection anti-attaque, n'importe quel type de revêtement de protection anti-attaque, tel qu'un résiste non photosensible, pouvant être utilisé, ce qui apporte des avantages importants en termes de fabrication ou de coût. L'attaque desdites cibles à attaquer (60, 62) accessibles se fait après ce procédé.
Patent CA-2274222-C (CA)
Title: Biomedical devices with hydrophilic coatings
Inventor: TURNER DAVID C
IPC: G02B1/04
Filed: 1999-06-10
Granted: 2009-09-08
Abstract: Biomedical devices with stable, hydrophilic and antimicrobial coatings are provided. The coatings are formed using a coupling agent to bond a carboxyl containing hydrophilic coating to the surface by ester or amide linkages.
Patent CA-2276475-C (CA)
Inventor: HONSELMANN FRANK
IPC: C23C18/00
Filed: 1999-06-25
Granted: 2007-05-22
Abstract: The invention relates to an aqueous preparation for the pickling and activation of aluminum-steel composites prior to electroless dip tinning. Examples of aluminum--steel composites are sliding bearings, bushes, wear disks, dry sliding bearings, etc., for pumps, motors and gear boxes.     The pickling/activation solutions for the pretreatment of aluminum-steel composites prior to dip tinning comprise sulfuric acid, hexafluorosilicic acid, wetting agents, transition metal cations and nitrate and/or nitrite ions.
Patent CA-2283079-C (CA)
Inventor: HIRABAYASHI TETSUYA
IPC: D21H19/60
Filed: 1998-10-05
Granted: 2006-06-06
Abstract: The process for manufacturing a coated paper having a thermal shrinkage force (R), which satisfied the relationship 0 <= R <= 35 gf, comprises coating a paper web on both sides with an aqueous solution of polyvinyl alcohol to form coated paper web, drying the coated paper web to form a base paper with PVA coating, applying a coating composition composed of an adhesive and a pigment to the base paper, followed by drying in order to form a coating layer on the base paper.
Patent CA-2284839-C (CA)
Title: Disposable garments and their manufacturing
Inventor: DREZDZON EDWARD ANTHONY II
IPC: A41B9/12
Filed: 1998-04-06
Granted: 2007-02-27
Abstract: The process friendly garments include a waste containment structure that has an absorbent core which is positioned between a wearer and a backsheet, and a cover joined to the pant structure. In addition, a continuo us process for the manufacture of shorts from four single layer webs of fabric, each web having two side edges, is disclosed.
Patent CA-2291076-C (CA)
Inventor: SPANG KAARE
IPC: B23D63/16
Filed: 1998-05-20
Granted: 2006-09-26
Abstract: For users of chain saws it is known that the chain saw teeth should rather often be sharpened by filing in order to keep them well cutting. Traditionally, such a sharpening is effected by means of a straight filing rod moved in a reciprocal manner, but according to the invention it is realized that it is better to arrange the rod as a rotary circular or screw shaped formation, whereby the teeth can be worked in a simplified manner.
Patent CA-2300700-C (CA)
Inventor: HWANG SUNG-YUL
IPC: B08B9/087
Filed: 2000-03-15
Granted: 2006-10-31
Abstract: This invention provides a revolving dustpan for easy removal (a kind of cleaning) of various debris, through a narrow access hole, scattered in the deep tank like the nuclear reactor tank, the reactor pool, or other industrial tanks.      This invention consists of the dustpan assembly composed of a few dustpans quadrilateral-pipe shaped with one-side-opening through which the debris can be collected, the cover connected to the dustpan to drag in the debris and to close the dustpan, the central pipe assembly connected to the dustpan to support and revolve the dustpans, a few points between each dustpan and between the dustpan and the central pipe, the handles connected to the top of the central pipe, and a few thin wires to adjust the angles between the dustpans and to close the cover.
Patent CA-2302937-C (CA)
Title: Method for producing (hetero)aromatic hydroxylamines
Inventor: KLINTZ RALF
IPC: C07D401/04
Filed: 1998-08-21
Granted: 2008-12-16
Abstract: The invention relates to a method for producing N-acylated (hetero)aromati c hydroxylamine derivatives of formula (I), wherein the substituents, the ring atom and the index have the meanings given in the Description, by hydrogenating a (hetero)aromatic nitro-compound of general formula (II) in the presence of a hydrogenation catalyst.
Patent CA-2304564-C (CA)
Title: Panier comprenant un ou plusieurs bras mobiles
Inventor: BATES JAMES S
IPC: A61B17/22
Filed: 1998-09-30
Granted: 2005-09-13
Abstract: La présente invention concerne un dispositif d'extraction médical comprenant un panier muni d'au moins trois bras, lequel dispositif peut être utilisé pour extraire d'un corps des matériaux tels que des calculs. L'un des bras du panier au moins peut être déplacé indépendamment d'au moins l'un des autres bras. Cette mobilité individuelle de l'un des bras permet de saisir le matériau plus rapidement et plus facilement. Une extrémité distale du panier peut être non perforée.