baber/WOPTO huggingface dataset:
Patent CA-2209502-C (CA)
Inventor: NELSON MICHAEL C
IPC: B05B3/04
Filed: 1997-07-03
Granted: 2000-02-15
Abstract: A fluid flow regulator readily attachable between a rotary sprinkler and a fluid conduit for regulating the water flow and pressure to the sprinkler to irrigate an irregular pattern such as a square, The regulator includes a body having a streamlined channel leading to a straight through flow variable orifice and being connectable with a respective fluid port member of the sprinkler and the conduit. A rotatable port piece mounted in the body has a straight through flow port, centered on the axis of rotation and communicating with the straight through flow orifice of the body. This port leads to a streamlined channel which exits into the sprinkler shaft. The port piece has a means for coupling rotational energy from the sprinkler. The port and orifice have an identical design such as a four point star or equilateral concaved octagon adapted for watering in a square pattern. The rotational position of the port piece in relation to the body regulates the flow of water. A retaining sleeve, mounted in the body, accommodates a washer and the port piece holding them in place and allowing them to rotate.
Patent CA-2211603-C (CA)
Title: Exfoliated layered materials and nanocomposites comprising said exfoliated layered materials having water-insoluble oligomers or polymers adhered thereto
Inventor: BEALL GARY W
IPC: C09C1/28
Filed: 1997-07-28
Granted: 2007-03-27
Abstract: A phyllosilicate material is exfoliated by admixture of the phyllosilicate with water, and a solvent for a water-insoluble oligomer or polymer that is sorbed or electrostatically bonded to the inner surfaces of the phyllosilicate platelets after exfoliation of the phyllosilicate. Intercalation and exfoliation can be achieved via contact of the phyllosilicate with an organic solvent and water to electrostatically bond one or more polar moieties from the organic solvent to a metal cation on the platelet inner surfaces, so that after evaporation of the water used for intercalation of the organic solvent between phyllosilicate platelets, the platelets do not then collapse together, but remain exfoliated. After exfoliation of the phyllosilicate, the exfoliated platelets are contacted with a polymer/carrier composition that includes a water-insoluble polymer or water-insoluble oligomer, and a solvent for the water-insoluble polymer or oligomer. After exfoliating the phyllosilicate and prior to polymer contact, the individual phyllosilicate platelets are contacted with the polymer/carrier composition to sorb the water-insoluble polymer or water-insoluble oligomer onto one or both surfaces of the exfoliated phyllosilicate platelets and drive off the adhered solvent.
Patent CA-2211753-C (CA)
Inventor: PARZYGNAT WILLIAM JOSEPH
IPC: G02B6/00
Filed: 1997-07-30
Granted: 2001-01-30
Abstract: Disclosed is a laminated optical device assembly having a template which both restrains an optical device and provides a safe bending radius about which to mount fiber optic cables emanating from the device.  The assembly is adapted for field assembly to assist a craftsperson with the placement and protection of fragile fiber optic cables. The template is adhesivey bonded between a bottom and a top to provide a robust assembly which is further incorporated into an optical device housing.
Patent CA-2212903-C (CA)
Inventor: SAITO SHIN
IPC: B01L99/00
Filed: 1997-08-13
Granted: 2002-04-02
Abstract: There is disclosed a washing device for use with an automatic biochemical analyzer using reaction containers.  The washing device comprises a sucking portion and a draining tube.  When the sucking portion is advanced into anyone reaction container placed in position and is set in a given position, a communication passage is created between the inner wall surface of the container and the outer wall surface of the sucking portion and between the bottom surface of the container and the bottom surface of the sucking portion.  During draining, the container is depleted of wash liquid.          Outside air flows from the communication passage into the container through its opening at the top end at a flow rate more than a given value.  The air flow blows away the water droplets adhering to the inner wall surface of the container.  The blown water droplets are urged downward toward the sucking port in the suction portion. Then, the water droplets are discharged into a waste tank through the draining tube.  Thus, the water droplets can be easily and almost completely removed.
Patent CA-2215930-C (CA)
Title: Procede de preparation d'antibiotiques de la famille des anthracyclines
Inventor: BIGATTI ETTORE
IPC: C07H15/252
Filed: 1996-03-19
Granted: 2007-08-21
Abstract: Procédé de préparation d'antibiotiques de la famille des anthracyclines de formule (A) dans laquelle R<1> représente hydrogène, OH ou OCOR<2>, où R<2> représente un groupe alkyle C1-C4, ce procédé consistant à épimériser le groupe 4' hydroxy du reste de daunosamine par substitution nucléophile d'un groupe triflate avec un carboxylate, cette épimérisation s'effectuant sur la molécule entière, les groupes hydroxy étant protégés, puis à procéder à une transformation ultérieure afin d'obtenir le produit final.
Patent CA-2216438-C (CA)
Inventor: CROWTHER RICHARD J
IPC: B21F15/04
Filed: 1997-09-24
Granted: 2002-10-29
Abstract: A method and apparatus for automatically twisting two ends of a wire protruding from a stack of rotor lamination parts employs a holder for holding and positioning the parts stack.  A rotatable collar is provided having an aperture through which the two ends of the wire project.  A rotating and reciprocating substantially conically-shaped head traps the wire ends between an inner edge of the rotating collar facing the conically-shaped head and the conically-shaped head when the conically-shaped head is thrust into position against the inner edge of the collar.  A unit is provided for positioning the conically-shaped head against the inner edge of the collar.  A rotating member rotates the conically-shaped head to twist the two ends of wire.  During twisting, clamping jaws clamp a portion of the twisted ends while the conically-shaped head continues to rotate so that a scrap portion of the twisted ends is broken off by wire fatigue and can fall free when the conically-shaped head is moved away from the inner edge of the rotating collar.
Patent CA-2220026-C (CA)
Title: Dentifrice compositions
Inventor: RICE DAVID EARL
IPC: A61K8/25
Filed: 1996-04-19
Granted: 2001-09-11
Abstract: Oral compositions, such as oral gels and toothpastes, containing a novel abrasive. An amorphous silica abrasive composition, comprising: a) a precipitated silica, comprising particles wherein said particles have: i) a mean particle size of from 5 to 11 microns (s.d. < 9); ii) an Einlehner hardness of from 0.8 to 2.5 for abrasive to brass screen and from 5 to 8 for  abrasive to polyester screen; iii) an oil absorption of from 95 ml/100 gm to  135 ml/100 gm; and iv) a radioactive dentin abrasion of from 25 to 90; and b ) a gel silica, comprising particles wherein said particles have: i) a mean particle size of from 5 to 11 microns (s.d. < 9); ii) an Einlehner hardne ss of from 3 to 15 for abrasive to brass screen and from 8 to 20 for abrasive to polyester screen; iii) an oil absorption of from 60 ml/100 gm to 130 ml/100 gm; and iv) a radioactive dentin abrasion of from 80 to 200 wherein at least  70 % of all of said particles have a diameter of below 25 microns and wherei n the pellicle cleaning ratio is from 90 to 135, preferably from 110 to 135, a nd the radioactive dentin abrasion is from 60 to 100, preferably from 65 to 85,  with a pellicle cleaning ratio/radioactive dentin abrasion ratio of from 1.2 0 to 1.60, preferably 1.25 to 1.50, and wherein the ratio of precipitated sili ca to gel silica isfrom 90:10 to 60:40, preferably 80:20 to 60:40, respectively .
Patent CA-2223602-C (CA)
Inventor: SARGEANT VIVIEN JANE
IPC: B65D17/34
Filed: 1998-01-07
Granted: 2003-03-18
Abstract: A method of packaging a beverage having gas in solution and a beverage package has a container 10 containing the beverage 6 to form a headspace 15. Floating on the beverage 6 is a hollow spherical capsule having a restricted aperture 7. During sealing of the container 10 by a top 20 the headspace 15 is pressurised (by a nitrogen dose 16) and during such pressurisation the insert 1 is raised relative to its natural floating position on the beverage 6 to ensure that the aperture 7 communicates with the headspace 15 to pressurise the chamber of that insert. The aforementioned raising of the insert 1 is preferably achieved by subjecting the insert to a centrifugal force during rotation of the container in seaming the top 20 thereto or by magnetic attraction. Following pressurisation of the headspace 15 the insert is lowered to float naturally on the beverage 6 with its aperture 7 submerged. During pressurisation the insert 1 may take in a minimal volume of beverage from the container. When the container is opened by ring pull 25 a pressure differential develops causing fluid under pressure to be ejected from the insert 1 through the aperture 7 into the beverage 6 for liberating gas from solution and the development of froth on the beverage.
Patent CA-2228426-C (CA)
Title: Biomaterial
Inventor: CANHAM LEIGH TREVOR
IPC: H01L21/306
Filed: 1996-08-01
Granted: 2008-02-19
Abstract: Biomaterial, for example bioactive silicon, may be fabricated by anodising a silicon wafer to produce a wafer (10) having a porous silicon region (20). In vitro experiments have shown that certain types of porous silicon cause the deposition of apatite deposits both on the porous silicon (20) and neighbouring areas of bulk silicon (22) when immersed in a simulated body fluid solution. This deposition of apatite provides an indication that porous silicon of appropriate form is bioactive, and therefore also biocompatible. A form of porous silicon is dissolved in the simulated body fluid solution and this is an indication of a resorbable biomaterial characteristic. In addition to porous silicon, certain types of polycrystalline silicon exhibit bioactive characteristics. Bioactive silicon may be used in the fabrication of biosensors for in vitro or in vivo applications. The bioactivity of the bioactive silicon may be controlled by the application of an electrical potential thereto.
Patent CA-2233690-C (CA)
Title: Composition pour le nettoyage de l'argent ou du cuivre
Inventor: LAING MARK
IPC: C11D17/00
Filed: 1997-06-04
Granted: 2007-01-09
Abstract: L'invention concerne une composition de nettoyage chimique de surfaces renfermant de l'argent ou du cuivre. Cette composition comprend un solide ou une poudre soluble dans l'eau renfermant de la thio-urée ou un dérivé de celle-ci, et est formulée sous une forme d'application unitaire tel qu'un comprimé ou un sachet. Une composition préférée comprend jusqu'à 60 % de thio-urée ou d'un dérivé de celle-ci; jusqu'à 4 % d'un tensioactif; pas plus de 40 % d'un acidifiant; moins de 20 % d'un agent de désintégration; jusqu'à 10 % d'un liant; entre 0 et 1 % d'un lubrifiant et jusqu'à 40 % d'un diluant.
Patent CA-2235411-C (CA)
Title: Processus de separation et d'inversion en une etape au moyen d'une pluralite de vibrateurs
Inventor: ALLEN KENNETH PAUL
IPC: G01V1/36
Filed: 1996-10-03
Granted: 2000-06-20
Abstract: Procédé servant à effectuer la génération, l'enregistrement et le traitement préalable de données sismiques vibratoires haute fidélité dans un système mettant en application une pluralité de sources de vibrations (18, 20, 22, 24). Ce procédé consiste à mesurer le mouvement de chacun des vibrateurs (18, 20, 22, 24), à déterminer un rapport en divisant les données sismiques vibratoires par la mesure du mouvement du vibrateur, de manière à supprimer la force appliquée inconnue, ce qui laisse la réflexivité terrestre multipliée par une dérivée de temps divisée par une fonction de phase minimale, à filtrer (54) par filtre passe-bande de phase minimale le rapport obtenu et à effectuer une déconvolution (56) de phase minimale afin de supprimer la dérivée de temps divisée par la fonction de transfert de phase minimale. Ce procédé peut également comprendre les étapes de déconvolution (66) de l'ensemble d'explosion, de déconvolution (72) de l'ensemble récepteur, de correction (88) des parasites électrostatiques, de filtrage (70) F-K du bruit, de déconvolution (74) de transitoires en phase nulle et de déphasage (76) de modèle. On mesure le mouvement du vibrateur afin de produire un signal utilisé dans le traitement des données. Ces données sont divisées par le signal réel transmis dans le domaine de fréquence.
Patent CA-2239903-C (CA)
Title: Thermal printer with spring biased drive roller/platen
Inventor: LODWIG DEAN H
IPC: B41J11/20
Filed: 1996-11-12
Granted: 2002-10-29
Abstract: A low-cost small footprint thermal printer (10) including a thermal print head (26) and a motor drive roller/platen (32) mounted opposite to the print head (26) for pinching web material therebetween to draw the material from a supply roll and advance it past the print head (26). The roller/platen (32) is mounted on a hinged door which can be opened to provide access to a supply roll compartment and closed to position the roller/platen (32) in operative relationship adjacent to the print head (26). In its closed operative position, the roller/platen (32) is spring biased against the fixedly mounted print head (26).
Patent CA-2241210-C (CA)
Inventor: KING CHI-HSIN R
IPC: C12P41/00
Filed: 1996-11-25
Granted: 2002-05-14
Abstract: The present invention is related to a novel process for preparing N-acetyl-(L)-4-cyanophenylalanine by resolving the racemic compound N-acetyl-(D, L)-4-cyanophenylalanine ethyl ester, and a novel process to prepare a stereoisomer of Ac-(L)-pAph-Chg-PalMe(3)-NH2 by using the intermediate N-acetyl-(L)-4-cyanophenylalanine.
Patent CA-2242170-C (CA)
Title: Three dimensional virtual reality enhancement techniques
Inventor: AHO ALFRED VAINO
IPC: G06F3/048
Filed: 1998-06-30
Granted: 2002-11-05
Abstract: For a world that has a portion of the world distant from the point of view of the user represented in only two dimensions as a video on a video screen, when an object on the video screen undergoes a trajectory that takes at least a portion of it to a location in the world that is not represented by the video but instead is a location in the world that is represented by computer graphics, in addition to being able to continue to see such an object when it is rendered as computer graphics in the computer graphics part of the world, i.e., popped out from the video, one is able to interact with such an object. Thus, an object which pops out from a video into the computer graphics part of the world may be "investigated" by a viewer of the world. For example, the user could enter a store which popped out of the video, and engage in virtual shopping therein. The particular store which is actually entered may be customized on a per user basis, e.g., as a function of geography. When the proprietor of a virtual store, or his representative, e.g., electronic agent, detects the avatar of one or more persons in the vicinity of the avatar of a store for which such proprietor's store corresponds to the virtual store for such passing persons, a message may be transmitted to such passing persons.
Patent CA-2245214-C (CA)
Inventor: KOHLMAN NICHOLAS
IPC: F16L23/16
Filed: 1998-08-18
Granted: 2004-03-23
Abstract: A metal to metal seal and a method of forming the same includes providing a pair of opposed clamping faces. Each of the clamping faces surround apertures. Seal grooves serve to widen each of the apertures. Each of the seal grooves have truncated angular corners. A malleable metal sealing ring is positioned in the seal grooves. The sealing ring has truncated angular outer edges complementary to the truncated angular corners in the seal grooves. The clamping faces are clamped together in face to face relation to energize the sealing ring.  The sealing ring has an enlarged inner diameter to create an deflectable edge at the truncated annular edges. The subsequent application of internal pressure serves to promote deflection of the metal sealing ring at the truncated angular edges and further energize the sealing ring.
Patent CA-2251838-C (CA)
Inventor: MA CHRIS CHEN-HSING
IPC: G01S3/782
Filed: 1997-04-04
Granted: 2001-03-27
Abstract: A sensor for determining a one-dimensional component of the angular orientation of a radiation source (5) relative to the sensor has a radiation sensitive element (1) which produces an electrical signal representative of radiation incidence upon the element. A radiation-opaque mask (3) is mounted between the element and the radiation source. A first plurality of parallel slit apertures (4) are provided in the mask. The slits are spaced relative to one another, and the element is aligned relative to the mask, such that radiation emitted by the source through at least one of the slits is simultaneously incident upon at least two independent radiation-sensitive points (8A, 8B) on the element while the source is within an intended operational range of the sensor; and, the points are displaced from the one slit by different distances.
Patent CA-2261672-C (CA)
Inventor: THOMPSON JESSE B
IPC: A45F3/08
Filed: 1997-07-28
Granted: 2004-06-22
Abstract: An internal frame backpack (10) includes a pack (12) having an anterior side (14) that contacts a user's back, and left and right shoulder straps (10, 18) attached at an upper end to an upper portion (20) of the pack and at a lower end to left and right lower portions (44, 46) of the pack. The pack includes an internal frame formed from an elastomeric pad (24) integrated into the anterior side of the pack, and resilient left and right rods (26, 28) mounted within the pack and secured to the elastomeric pad. The resilient rods act as coil springs which support loads in the pack with a degree of flexibility that varies in response to the magnitude of the load.
Patent CA-2261893-C (CA)
Title: Method and apparatus for providing force feedback over a computer network
Inventor: TAN SIAN W
IPC: H04L29/06
Filed: 1997-07-31
Granted: 2002-04-16
Abstract: An internet network force feedback system (10) which includes a server machine (18), a client machine (14) provided with the force feedback device (24), and one or more additional client machines (16) each of which may be provided with additional force feedback devices (26). The server machine is a computer or processor running TCP/IP server software and is connected to the Internet Client machine (14) runs internet browser software. The force feedback device (24) has sensors and actuators to monitor the input of the user and transmit the input to the client and receive response from the client and provide the force feedback sensations to the user.
Patent CA-2262284-C (CA)
Title: Modular casket
Inventor: ENNEKING JOHN R
IPC: B65D5/68
Filed: 1999-02-22
Granted: 2007-12-18
Abstract: A cardboard material casket (10) including a cardboard material inner box (12) having a bottom (35), two opposed sides (22, 36) and two opposed ends (46, 48). A cardboard material outer wrap (14) has an outer directed side (23, 25) with a finish different from a finish of the cardboard material inner box.  The outer wrap has a bottom (82) located below the bottom of the inner box.  Side and end walls (88, 90, 92, 95) of the outer wrap extend from the bottom of the outer wrap, up and over outer surfaces of the side and end walls of the inner box and then down and over inner surfaces of the side and end walls of the inner box. The outer directed surfaces (23) of the bottom and side and end walls of the casket box and inner surfaces (25) of the side and end walls of the casket box present the finish of the outer directed side of the outer wrap.
Patent CA-2269394-C (CA)
Title: A process for the preparation of esters of [2-[4-[(4-clorophenyl)phenylmethyl]-1-piperazinyl]-ethoxy]acetic acid
Inventor: KASPI JOSEPH
IPC: C07D295/088
Filed: 1999-04-15
Granted: 2003-12-09
Abstract: The invention provides a process for the preparation of esters [2-[4-[(4-chlorophenyl) phenylmethyl]-1-piperazinyl]ethoxy]acetic acid, of the formula (I) (see formula I) wherein X represents a halogen atom and R represents a lower alkyl group comprising reacting: (a) a compound of the formula (II) (see formula II) (b) a compound of the formula (III) (see formula III) and (c) a tertiary amine as a solvent and as an acid scavenger at a temperature of at least 100°C, wherein X is a halogen atom, X' is selected from the group consisting of bromine and chlorine and R is a lower alkyl group.
Patent CA-2271763-C (CA)
Title: Telecommunications tandem system for circuit-based traffic
Inventor: DUREE ALBERT DANIEL
IPC: H04M3/42
Filed: 1997-11-10
Granted: 2005-08-02
Abstract: The invention is a tandem system (300) for providing a tandem connection for circuit-based traffic. This tandem system comprises an ATM cross-connect (370), ATM interworking multiplexers (360, 364), and a signaling processor (350). The multiplexer converts the traffic received by the tandem system into ATM where it is routed through the cross-connect and re-converted back into the circuit-based format at an ATM interworking multiplexer. The signaling processor controls the virtual connections and outgoing circuit-based connections used by the multiplexers.
Patent CA-2273921-C (CA)
Inventor: COOKLOCK KATHLEEN M
IPC: A61M35/00
Filed: 1997-12-02
Granted: 2005-10-25
Abstract: A dispenser containing multiple transdermal/transmucosal patches which can b e conveniently removed through an aperture in the dispenser. The dispenser preferably includes a cover providing an impermeabl e seal. The transdermal/transmucosal patches may be stacked, folded, interleaved, looped, or rolled within the dispenser chamber and are preferably separably interconnected so that the removal of one device automatically pulls the next device into position for dispensing. The dispenser provides at least stable short term storage of the transdermal/transmucosal patches and may be packaged in impermeable packagin g, such as a foil/polymer pouch, to provide stable long term storage if necessary.
Patent CA-2275858-C (CA)
Title: Vitamin powders for beverage applications
Inventor: CHEN CHYI-CHENG
IPC: A23L33/15
Filed: 1999-06-21
Granted: 2009-04-14
Abstract: The present invention provides a powder composition which comprises droplets of a fat soluble vitamin which droplets average about 70 to about 200 nanometers in diameter, and which are dispersed in a modified polysaccharide matrix, beverages and tablets containing the composition, and methods of making the composition.
Patent CA-2280497-C (CA)
Inventor: LAFOND ANDRE
IPC: B65D21/02
Filed: 1999-08-19
Granted: 2003-12-09
Abstract: A biological specimen cassette adapted to be installed with similarly constructed cassettes as a package in a cassette dispenser from which cassettes are thereafter dispensed individually comprises a channel formed in at least one of its walls to receive a connecting element, such as band, string or wire, which, when engaged to all cassettes, form a collective stacked arrangement of cassettes which is insertable into the cassette dispenser. Once received in the dispenser, the connecting element is then retrieved so that individual cassettes may be individually dispensed.
Patent CA-2286404-C (CA)
Title: Two-position screwdriver
Inventor: ALSRUHE WALLIS
IPC: B25F5/02
Filed: 1999-10-14
Granted: 2008-12-23
Abstract: A two-position tool has a pair of housing members rotatable with respect to one another. A locking mechanism is coupled with one of the housing members to lock the two housing members in a plurality of positions with respect to one another. In a first position, the axes of the housing members are substantially colinear with one another and in a second position, the axes are angled with respect to one another. The locking mechanism includes an activation member and a pin coupled with the activation member. A detent member is coupled with one of the housing members. The detent member has a plurality of detents to receive the movable pin to lock the housing member in the plurality of positions.