baber/WOPTO huggingface dataset:
Patent CA-2194643-C (CA)
Title: Orthodontic device
Inventor: WILLIAMS MICHAEL O
IPC: A61C7/20
Filed: 1997-01-08
Granted: 2009-09-08
Abstract: A orthodontic appliance having a midarch expander positioned between two forward orthodontic bands to effect intercanine arch length development and bilateral spring-loaded telescopic rod and tube assemblies for molar distalization and added arch length development in the mandibular or maxillary bicuspid area. In one embodiment of the invention the midarch expander is an jackscrew complex connecting a bilateral palate plate. Each side of the palate plate is attached to a canine and a molar with an orthodontic band. In another embodiment of the appliance, a molded palate plate is divided into four sections, two forward sections and two rear sections. Each forward section is attached to a canine tooth and each rear section is attached to a molar with an orthodontic band. The midarch expander is positioned between the two forward sections and the two rear sections are attached to their respective forward section by a spring--loaded telescopic rod and tube assembly.
Patent CA-2197274-C (CA)
Inventor: WILLIAMS TERRELL M
IPC: A61N1/05
Filed: 1997-02-11
Granted: 2002-02-19
Abstract: A medical electrical lead having a drug which is no more than sparingly soluble in water applied to the electrode surface. In the preferred embodiment the lead of the present invention possesses an electrode treated with a very slightly soluble in water steroid, such as beclomethasone dipropionate anhydrous. Preferably the steroid is applied to the surface of the electrode which contacts tissue when implanted. A method of manufacturing such a lead is also disclosed. Through such a design, a high impedance, low threshold lead which is simple and easy to manufacture is disclosed.
Patent CA-2198453-C (CA)
Title: Metalorganic compounds
Inventor: JONES ANTHONY COPELAND
IPC: H01L21/203
Filed: 1995-09-04
Granted: 2002-02-19
Abstract: The invention concerns a process for preparing metalorganic compounds and metalorganic amine adducts. A Grignard reagent is prepared and reacted with the metal halide in an amine solvent. The amine used can form a useful adduct with the metalorganic compound produced. Either the metalorganic compound or its amine adduct may be used for growing semiconductor layers by vapor phase epitaxial techniques.
Patent CA-2205525-C (CA)
Inventor: KOMODA MICHIO
IPC: G06F7/52
Filed: 1994-03-17
Granted: 2001-05-22
Abstract: A multiplier circuit has a smaller circuit size and operates at a higher speed.   An addition processing part (31b) to which a partial product group 6 is inputted comprises at its first stage half adders (7a) and 7c) and a rounding half adder  (13).   The addition processing part (31b) further comprises full adders (8a), (8b) and (8c) at its second stage, full adders (8d),  (8e) and (8f) at its third stage, and a 3-bit carry look ahead adder (9) at its fourth stage    A value outputted from the rounding half adder 13 is a sum of two inputs given thereto and a value 1.   A rounding circuit for calculating a round number is therefore not necessary
Patent CA-2206141-C (CA)
Inventor: EVRARD ALAIN
IPC: B29C49/06
Filed: 1995-12-20
Granted: 2003-02-04
Abstract: Device (1) for supporting a preform in an endless chain for conveying preforms that rotate simultaneously about themselves. The device comprises a plate (2) hingedly coupled to two adjacent plates and supporting a rod (5) removably fastened to the open end of a preform (8). The plate includes a linking stem portion (11) supporting a dome-shaped surface forming a coupling head (12) for contacting the associated adjacent plate, and a spherical seat portion (13) with a central axial opening (14) for the free passage of the linking stem portion (11) of the associated adjacent plate. The device is characterized in that the dome-shaped surface forming a coupling head is mounted free to rotate on said linking stem portion. A contact plate (16) is fastened to the free end of the linking stem portion (11) and extends transversely thereto substantially parallel to the side of the coupling head (12) opposite the side of the spherical cap. An annular bearing (17) is placed coaxial to the linking stem portion between the sides mutually opposite the coupling head (12) and the contact plate (16).
Patent CA-2211083-C (CA)
Title: Transformation des adresses dans un systeme d'ordinateur organise en grappes
Inventor: RABINS LEONARD
IPC: G06F9/46
Filed: 1996-10-04
Granted: 2003-05-20
Abstract: Pour procéder à l'intégration d'un ensemble de processeurs (11-14) dont chacun doit être en mesure d'adresser une portion limitée d'un espace interne de stockage, à l'aide d'un espace de mémoire externe plus vaste, lesdits processeurs sont disposés en grappes comportant chacune plusieurs processeurs et une antémémoire (7) secondaire commune. Un traducteur (18) d'adresses assure des transformations entre les adresses de l'espace (8) mémoire interne et les adresses de l'espace mémoire externe. L'espace mémoire externe est divisé en espaces privés et partagés. Un bit indicateur d'adresses internes associé au numéro de grappe forme l'antémémoire primaire d'un processeur demandeur, et sert à établir la transformation soit vers l'espace externe privé de cette grappe, soit vers l'espace externe commun. Dans la transformation inverse, de l'extérieur vers intérieur, une paire de bits indicateurs sert à générer une adresse interne et à déterminer l'espace commun et l'espace privé de la grappe désignée. Le numéro de grappe attribué à chacun des processeur est utilisé par l'antémémoire secondaire pour déterminer celui des processeurs qui émet des informations vers la mémoire externe, ou en reçoit.
Patent CA-2217189-C (CA)
Inventor: BLASE GUENTER
IPC: F16G13/16
Filed: 1996-04-03
Granted: 2001-02-20
Abstract: The invention concerns a chain-type casing for guiding hoses, cables, etc., between a fixed and a mobile connection point, the links in the chain being of a lightweight, thin-walled design and each consisting of two sideplates (1, 2) joined by at least one crossbar (3). The sideplates (1 or 2) of neighbouring links are hinged to each other by studs (5) formed on each of the sideplates of one link, the studs engaging in matching apertures (6) in the sideplates of the other link and the casing having a construction which allows it to flex torsionally and/or laterally. In order to avoid the hinge connectors between the links opening, the invention calls for the studs (5) to have a snap-in arrester feature round the edge so that the stud (5) locks into the aperture (6) but can be pulled out again by force.
Patent CA-2219816-C (CA)
Title: Azaborolinyl metal complexes as olefin polymerization catalysts
Inventor: NAGY SANDOR
IPC: B01J31/18
Filed: 1996-03-18
Granted: 2006-12-12
Abstract: Disclosed is a catalyst having general formula (I) where L is a ligand having formula (a). L' is L, Cp, Cp*, indenyl, fluorenyl, NR2, OR, or halogen, L can be bridged to L'; X is halogen, NR2, OR, or alkyl from C1 to C12, M is zirconium or hafnium, R is alkyl from C1 to C12 or aryl from C6 to C12, R1 is R, alkaryl from C6 to C12, aralkyl from C6 to C12, hydrogen, or Si(R)3, R2 is R1, halogen, COR, COOR, SOR, or SOOR, R3 is R2, OR, N(R)2, SR, or a fused ring system, Cp is cyclopentadienyl, Cp* is pentamethylcyclopentadienyl, n is 0 to 3, and L8 is an optional Lewis base. Also disclosed is a method of making a poly-.alpha.-olefin comprising polymerizing an .alpha.-olefin monomer using a catalyst such as that described above where M can be titanium, zirconium, or hafnium.
Patent CA-2220515-C (CA)
Title: Process for producing erythropoietin containing no animal proteins
Inventor: BURG JOSEF
IPC: C07K14/505
Filed: 1996-05-10
Granted: 2003-07-22
Abstract: A preparation of a protein with erythropoietin activity and obtainable after culturing an erythropoietin-producing host cell is characterised by a) a host- cell proteins content of  100 ppm, b) a host cell DNA content of  10 pg per 83 .mu.g of erythropoietin, and c) a total absence of mammalian proteins not derived from the host cell. The preparation is obtained following serum-free culture using a purification process involving dye chromatography, hydrophobic chromatography on an alkylated or arylated carrier, chromatography on hydroxyapatite, hydrophobic chromatography and anion exchange chromatography.
Patent CA-2220879-C (CA)
Inventor: TANG WADE WAI-CHUNG
IPC: G11B7/257
Filed: 1996-03-08
Granted: 2002-04-02
Abstract: An optical disk drive (10) uses an optical disk (12) with spatially separated multiple phase-change WORM recording layers (51, 66). The optical disk has a light transmissive substrate onto which the laser light is incident. The substrate supports at least two spatially separated multi-film recording stacks (90, 92), each stack including an active recording layer of phase-change WORM material. The disk is either an air-gap (78) structure wherein each recording stack is supported on a separate substrate (50, 56) and the substrates (50, 56) are separated by an air-gap (78), or a solid structure wherein a solid light transmissive spacer layer (22) separates the recording stacks (90, 92). Each of the recording stacks (90, 92) located between the substrate (50) on which the laser light is incident and the farthest recording stack includes an active phase-change recording layer (51) and an optical interference film (53) in contact with the recording layer (51). The recording layer (51) is made sufficiently thin to have good light transmissivity, but at this low thickness, without any other layers, is not sufficiently reflective to act as a recording layer with suitable servo and recording performance. The optical interference film (53) in contact with the recording layer (51) has a high index of refraction relative to the adjacent recording layer (51) and spacer (122) to increase the optical interference effect in the recording stack (90). The optical interference film (53) optimizes the contrast, reflectivity and transmissivitzy of the recording stack. The optical interference film (53) has low absoprtion so that laser light can pass through it to focus on a farther recording layer (66). This allows the farther recording layers (66) to be written using reasonable laser power.
Patent CA-2222046-C (CA)
Title: Method to monitor and control chemical treatment of petroleum, petrochemical and processes with on-line quartz crystal microbalance sensors
Inventor: POINDEXTER MICHAEL K
IPC: G05D21/00
Filed: 1997-03-24
Granted: 2005-08-16
Abstract: Thickness-shear mode resonators which simultaneously measure mass deposition and fluid properties can be utilized to monitor petroleum processing, petrochemical and water treatment systems. Specialty chemical additive materials can be accurately and instantaneously added to control conditions detected by the thickness-shear mode resonators. The thickness-shear mode resonators are piezoelectric crystals used in conjunction with oscillator circuitry that can determine mass as well as viscosity and/or density of a fluid in contact with the piezoelectric surface.
Patent CA-2224562-C (CA)
Title: Adhesive tape and method for producing it
Inventor: WILLMS ERIC JOACHIM
IPC: C09J7/38
Filed: 1996-06-07
Granted: 2002-07-30
Abstract: The invention relates to a method for producing an adhesive tape for redetachable closure or fixing, comprising a strip-like carrier (1), which is being coated with a self-adhesive agent (2), at least on the active area which during use of the adhesive tape is brought into contact with a counter surface (7), and also relates to the adhesive tape as  such. For improving production of the adhesive tape, several methods are suggested, according to one of which in a first step the active area is coated with a self adhesive agent (2) forming a continuous layer, and in a second step, in order to reduce the effective entire adhesiv e area, a non-adhering or less-adhering separating pattern (4) is printed on the self adhesive layer.
Patent CA-2233852-C (CA)
Title: Ultrasonic device for determining bone characteristics
Inventor: KANTOROVICH EDWARD
IPC: G01N29/07
Filed: 1996-10-03
Granted: 2004-03-16
Abstract: A method for determining, through an interposing medium, the mechanical properties of a solid having a surface, including transmitting a first ultrasonic wave along a transmission path from a first location through the interposing medium, along the surface and from the surface through the interposing medium to a second location; measuring the travel time of the first wave along the transmission path; measuring the thickness of the interposing medium; measuring the acoustic velocity of the interposing medium; and calculating the acoustic velocity in the solid based on the distance between the locations, the thickness of the interposing medium and the acoustic velocity in the interposing medium.
Patent CA-2234072-C (CA)
Inventor: RITTALER DONALD KARL
IPC: E05B73/00
Filed: 1998-04-06
Granted: 2002-11-05
Abstract: A security device for locking a portable article, such as a facsimile machine, printer,  scanner,  or other computer peripheral,  to  a  support  surface,  such as  a desktop.   In a first embodiment of the invention,  the device comprises a bracket mounted on the support surface which may be lockably coupled to a mating block affixed to the portable article.   In an alternative embodiment, the device comprises a cage enclosing the portable article which may be lockably secured to the bracket.
Patent CA-2235615-C (CA)
Inventor: MCKOWN RUSSELL
IPC: A61B5/0275
Filed: 1996-10-25
Granted: 2001-05-08
Abstract: On mesure séparément le débit cardiaque (DC) dans un estimateur local (118) et un estimateur de tendance (120) pour produire des valeurs de DC. Un indicateur, de préférence thermique, est injecté en fonction, de préférence, d'un profil de signal séquentiel binaire pseudo-aléatoire (x(t)), en amont par rapport à une région d'écoulement sanguin du corps d'un patient et est capté en tant que signal de sortie (y(t)) indicateur (108) en aval. On supprime de préférence le bruit basse fréquence du signal de sortie indicateur mesuré. Les estimations locales et de tendance sont basées sur les valeurs de la fonction de transfert de domaine de fréquence entre le signal indicateur d'entrée et le signal mesuré par rapport à un modèle de fonction de transfert prédéterminé qui est, de préférence, un modèle de référence retardé. L'estimateur de tendance est de préférence un filtre Kalman. L'estimateur local effectue de préférence son estimation sur la base d'une optimisation non récursive d'une fonction de coût. L'estimateur local produit de préférence des valeurs initiales pour démarrer l'estimateur de tendance.
Patent CA-2236880-C (CA)
Title: Toothbrush with pump
Inventor: PUURUNEN JUHA-PEKKA
IPC: A46B11/00
Filed: 1996-12-10
Granted: 2001-04-03
Abstract: The invention relates to a pump toothbrush comprising a brush portion (7, 71 ), a grip portion (1) and an intermediate arm portion (6). The grip portion (1)  comprises a container portion (11) for a cleansing medium. The container portion (11) is connected with the brush portion (7, 71) by means of a pump device (2) in order to feed the cleansing medium into the brush portion through the arm portion (6). In order to obtain a practical and handy toothbrush, the pump device (2) comprises a frame portion (21) arranged between the container portion (11) and the arm portion (6), whereby the container portion (11), the frame portion (21) and the arm portion (6) comprise essentially congruent casing portions.
Patent CA-2236909-C (CA)
Inventor: HINCHER WILLIAM
IPC: A45F5/00
Filed: 1998-05-07
Granted: 2007-01-02
Abstract: A bag configured to carry and cooperate closely with one or more hockey sticks. The bag has an elongated section and an enlarged head projecting from the elongated section at an obtuse angle. A zipper is disposed upon the enlarged head for access into the bag.      The bag has a shoulder sling having snaps for removable attachment to the bag, two rigid, small handles arranged abreast of one another, or both. If a shoulder sling is provided, the sling preferably attaches at one end to the inside of the elbow formed at the juncture of the elongated section and enlarged head. The bag preferably has two external pockets for carrying pucks and rolls of tape. The bag is formed from a flexible material, but in an alternative embodiment, may be formed from a rigid material.
Patent CA-2241300-C (CA)
Inventor: CHAMPEAU ANDRE
IPC: H01Q3/26
Filed: 1998-07-07
Granted: 2006-06-06
Abstract: Cette antenne réseau antibrouillée en réception, pour ondes radioélectriques ou ultrasonores, est pourvue d'éléments rayonnants (1) équipés individuellement ou par groupes de modules actifs ou passifs commandés en amplitude et en phase (2) permettant un pointage, à l'émission comme à la réception, par formation analogique de faisceau. Elle est remarquable en ce qu'elle possède un circuit d'antibrouillage (5, 7) en réception opérant successivement deux formations adaptatives réduites de faisceau par le calcul, l'une en site, qui est effectuée sur un regroupement des signaux de réception des éléments rayonnants selon des alignements horizontaux et intervient sur les signaux de réception en modifiant les réglages des modules commandés, et l'autre en gisement, qui est effectuée sur un regroupement des signaux des éléments rayonnants selon des alignements verticaux qu'elle déphase et somme pour former une voie de réception pour l'antenne globale. L'antibrouillage en réception ainsi obtenu a des performances comparables à celui qui résulterait d'une formation adaptative complète de faisceau tout en nécessitant un volume de traitement bien moindre.
Patent CA-2241354-C (CA)
Title: Double wall tank
Inventor: BARON ROGER J
IPC: B65D88/08
Filed: 1998-06-19
Granted: 2005-05-24
Abstract: A double walled tank for above ground use includes a circular base defined by an upper primary floor and a slightly larger lower, secondary floor connected to the primary floor by a peripheral weld seam; a cylindrical side wall defined by an inner primary shell and an outer secondary shell, the bottom end of the secondary shell being above the bottom end of the primary shell, such bottom end being connected to the primary floor and to the primary shell by weld seams and a continuous sealing ring; and a conical roof connected to the top end of the primary shell by a weld seam.
Patent CA-2241852-C (CA)
Title: Pyrrolo(2,3-c)carbazole-6-ones reunies par fusion et potentialisant l'activite de l'interferon gamma
Inventor: KNIGHT ERNEST JR
IPC: C07D491/147
Filed: 1997-02-20
Granted: 2006-04-18
Abstract: La présente invention concerne des molécules synthétiques biologiquement actives en l'occurrence les pyrrolo(2,3-C)carbazole-6-ones réunies par fusion lesquelles molécules sont représentées par les formules générales (I) et (II). L'invention concerne également un procédé de fabrication et d'utilisation des pyrrolo(2,3-C)carbazole-6-ones réunies par fusion.
Patent CA-2245973-C (CA)
Title: A strain-relief system for a folding plug and connector system
Inventor: CASTALDO COSMO
IPC: H01R13/58
Filed: 1998-08-26
Granted: 2005-12-06
Abstract: This invention relates to an electrical connector for attachment to the end of an electrical cable. The connector includes a split body having contacts supported thereon for attachment to conductors of the cable. The split body accommodates cables of different diameters and is provided with a cable clamping member which can be placed in either of the split body portions. This cable clamping member cooperates with a clamping jaw on the other body member to clamp the cable between the cable clamping member and clamping jaw to provide strain-relief when the two body parts are joined. The cable clamping member is fitted with various ribs, tabs, etc. to properly position the cable clamping member in the body portions.
Patent CA-2246315-C (CA)
Inventor: SEYDOUX JEAN
IPC: E21B47/12
Filed: 1998-09-01
Granted: 2007-04-24
Abstract: The system of the present invention includes measurement instrumentation that is located in or near the drill bit and used in a measuring-while-drilling system. The instrumentation can be located in a bit box, an extended sub between the drilling motor assembly and the bit box or in the drill bit. The drill bit is connected directly to the bit box or extended sub. The close proximity of the instruments to the drill bit allows for more reliable and useful measurements of drill bit, drilling and formation conditions. The bit box houses instruments that measure various downhole parameters such as inclination of the borehole, the natural gamma ray emission of the earth formations, the electrical resistivity of the earth formations, and a number of mechanical drilling performance parameters. Sonic or electromagnetic signals representing these measurements are transmitted uphole to a receiver associated with receiving equipment located uphole from the drill bit.
Patent CA-2251309-C (CA)
Inventor: TAKAMATSU RISUKE
IPC: F16K31/04
Filed: 1998-10-23
Granted: 2003-03-18
Abstract: A gas inlet member is fixed to a valve body and an upper part stem and a lower part stem are inserted slidably into a vertical stem opening above the gas inlet member.      A valve member is provided in the gas inlet member and a gas flow passage is formed. A ring-like seal member is mounted onto the upper part stem and an O-ring is fixed to the lower part stem. A part of the valve member disposed at the lower end portion of the valve body is merely inserted into a gas container. It is possible to carry out a stable operation of the gas supply valve in spite of a change of environment due to vibration or heat while driving a vehicle.
Patent CA-2254937-C (CA)
Inventor: SILVA CHARLES
IPC: B01D35/02
Filed: 1996-05-21
Granted: 2003-07-15
Abstract: A drain filtering device (44) is disclosed. The improvement over the prior art is comprised of reducing the filter size from an elongated device that spans the length of the gutter system (46) to a modular unit which is neccessary only at the drain site. The invention also includes an inclined upper face (54) which is positioned on the upstream side of the drain in the gutter and a down spout attachment which locates the invention in the gutter such that the flow of filtered water passes through the invention and into the downspout.  The debris (58) that collects in the gutter is carried along with the water until it makes contact with the inclined upper face (54) and is forced up the incline until the overflow debris (66) flows over the side of the gutter (46) thereby cleaning same and preventing the downspout (64) from becoming clogged.
Patent CA-2255655-C (CA)
Inventor: VINSON KENNETH DOUGLAS
IPC: A47K10/16
Filed: 1997-05-16
Granted: 2004-07-20
Abstract: A process for dry creping tissue paper comprising the application of creping adhesives in at least two steps. The adhesive applied in at least one of the steps is a polyvinyl alcohol while the adhesive applied in at least one other step comprises a water-soluble, thermosetting, cationic polyamide resin. The process provides high adhesion and doctorability for dry creping.
Patent CA-2256545-C (CA)
Title: Sonde pour l'analyse d'acides nucleiques
Inventor: KUBISTA MIKAEL
IPC: C12Q1/6825
Filed: 1997-05-30
Granted: 2006-10-31
Abstract: L'invention concerne une sonde pour la détection d'acides nucléiques ayant une séquence particulière. Elle se compose de deux unités jointes. Une unité est chimiquement différente des acides nucléiques naturels mais a la capacité de reconnaître une séquence particulière de bases ou de paires de bases dans l'ADN simple ou double brin de l'ARN. L'autre unité est un composé dont les propriétés détectables sont modifiées lors de la liaison aux acides nucléiques.
Patent CA-2257105-C (CA)
Title: Floating wharf or pier for ship mooring
Inventor: SALIS GIORGIO
IPC: E02B3/06
Filed: 1998-12-23
Granted: 2008-06-10
Abstract: Floating wharf or pier for boat or ship mooring, comprising a body having a cell-like hollow structure defining floatation chambers whose volume is accessible from outside and defines corresponding storage compartments. Admittance into each storage compartment is provided by a respective upper hatch and an inner ladder.