baber/WOPTO huggingface dataset:
Patent CA-2297444-C (CA)
Title: Method of separating an immiscible liquid/liquid mixture and apparatus therefor
Inventor: WILLIAMSON KENNETH M
IPC: B01D17/022
Filed: 1993-11-25
Granted: 2004-01-20
Abstract: A method of removing water from an organic liquid in which the water is substantially immiscible is provided. The mixture of water and an organic liquid is directed through a coalescing element which includes a packing material having a critical wetting surface tension intermediate the surface tensions of the water and the organic liquid, to form a mixture of water droplets and the organic liquid.      The mixture of water droplets and organic liquid is conducted to a separating element that permits passage of the organic liquid but substantially resists or prevents passage of the water droplets, thereby separating the water droplets from the organic liquid. The separating element for separating a first liquid from a second liquid in which the first liquid is wholly or partly immiscible and forms a discontinuous phase with the second, continuous phase liquid, preferably comprises a calendared, porous, fibrous structure including polytetrafluoroethylene fibres having diameters up to about 70 µm and a fluorocarbon binder.
Patent CA-2299010-C (CA)
Inventor: WAITKUS PHILLIP A
IPC: C08G8/28
Filed: 2000-02-21
Granted: 2004-07-20
Abstract: A polymer composition that can be used to cure a novolac resin at a lower temperature than conventional novolac curing agents and with reduced emission of volatile compounds is disclosed. The novolac curing agent polymer composition is prepared by mixing and reacting in aqueous solution a phenolic monomer and an aldehyde in the presence of a basic catalyst to form an intermediate resin, and reacting the intermediate resin with an amine to form the polymer composition.  The aldehyde to phenolic monomer molar ratio in the reaction should be at least about 1.0:1, and preferably is at least about 2.0:1. The preferred amine is hexamethylenetetramine, and it is preferred that the hexamethylenetetramine to phenolic monomer molar ratio is at least about 0.12:1. In a preferred version, the aldehyde is formaldehyde, and the phenolic monomer is selected from the group consisting of phenol, substituted phenols, and mixtures thereof, with phenol itself being the most preferred phenolic monomer. The polymer is particularly advantageous in that the reaction temperature is lowered compared to other conventional curing agents, the unreacted phenolic monomer in the polymer composition may be adjusted to levels less than about 0.5 weight percent, and the unreacted aldehyde in the polymer composition may be adjusted to levels less than about 0.1 weight percent. As a result, the polymer releases minimal volatile compounds when used to cure novolac resins, and unlike conventional resole curing agents, has an indefinite shelf life in both the pure form and when blended with a novolac resins.
Patent CA-2300057-C (CA)
Inventor: REES HERBERT
IPC: B29C31/04
Filed: 1998-08-10
Granted: 2005-11-01
Abstract: A film (50) is placed over a mold cavity (12a) and molten plastic (60, 98) deposited thereon to form a combination of a film with molten plastic thereon. The film-molten plastic combination is then formed i n said mold cavity (12a) into a molded article in the shape of the mold cavity (12a).
Patent CA-2302015-C (CA)
Title: A read-only memory and read-only memory device
Inventor: GUDESEN HANS GUDE
IPC: G11C/
Filed: 1998-08-28
Granted: 2004-04-20
Abstract: A read-only memory is made electrically addressable over a passive conductor matrix, wherein the volume between intersection of two conductors (2; 4) in the matrix defines a memory cell (5). Data are stored as impedance values in the memory cells. The memory cells (5) comprise either an isolating material (6) which provides high impedance or one or more inorganic or organic semiconductors (9), preferably with an anisotropic conducting property. The semiconductor material (9) forms a diode junction at the interface to a metallic conductor (2; 4) in the matrix. By suitable arrangement of respectively the isolating material (6) and semiconductor material (9) in the memory cells these may be given a determined impedance value which may be read electrically and corresponds to logical values in a binary or multi-valued code. One or more head-only memories (ROM) may be provided on a semiconductor substrate (1) which also comprises driver and control circuits (13), to accomplish a read-only memory device. The device may be realized either planar or also volumetrically by stacking several read-only memories (ROM) in horizontal layers (15) and connecting them with the substrate (1) via addressing buses.
Patent CA-2305400-C (CA)
Title: Improved turbine powerplant
Inventor: JAMES ROBERT G
IPC: F01D1/28
Filed: 1998-10-22
Granted: 2006-01-24
Abstract: A turbocompressor assembly (10) includes a first rotor stage (50) mounted on rotary shaft {51) and including circular rows of impeller blades (59-1, 59-2, 59-3) on one surface thereof separated by radial gaps in which opposed blade rows (29-1, 29-2) on a second rotor stage (20) are received. The two rotor stages are geared for counter-rotation and at least one of the rotors is perforated proximate its center (25) to allow air to be drawn between the opposed surfaces thereof, where its passage over the impeller blades develops useful torque. The opposed rotor surfaces are convolved to define a radially decreasing separation to an annular combustion cavity (73), and thereafter increasing with radius. Thus a radial compressor and a turbine function are developed by the respective blade rows on either side of the combustion cavity. The combustion cavity (73) may be formed in one of the rotors, or may be shared between the rotors as a communicating common annular chamber. Fuel may be delivered to the combustion chamber directly admixed into the air stream, or by a fuel delivery system (71).
Patent CA-2305850-C (CA)
Inventor: MURRAY ROBERT JAMES
IPC: B27B31/00
Filed: 1994-08-29
Granted: 2004-08-24
Abstract: Previous methods of bucksawing logs slow the through-put of a sawmill in that the conveyor line is stopped while a given log is bucksawed to length. The present invention provides a method for bucksawing a log which improves the throughput speed, comprising the steps of a) advancing the log endwise along an infeed conveyor; b) raising the log above the level of said infeed conveyor while advancing the log; c) measuring the advance of the log while raised; d) stopping the log at the desired length; e) sawing the log to produce a forward log segment; and f) lowering the forward log segment onto an outfeed conveyor while advancing the remaining log segments. An apparatus for carrying out the method is also disclosed.
Patent CA-2307867-C (CA)
Inventor: LICATA MICHAEL J
IPC: A61M25/06
Filed: 1998-10-23
Granted: 2009-08-18
Abstract: An improved percutaneous introducer device (10) is provided that provides a split sheath (12) having a flared lead in (34) for the facile introduction of ancillary medical implements, such as small diameter catheters, guide wires and the like, and a hub member (17) being shaped to mating underlie the flared lead in (34). When the hub member (17) is separated, such as by wings (18, 20) being pulled apart radially to the sheath (12), the sheath (12) is longitudinally split allowing it to be easily removed from an in situ catheter.
Patent CA-2316834-C (CA)
Inventor: ZHAO XUAN
IPC: A61K9/06
Filed: 1999-01-06
Granted: 2006-01-03
Abstract: L'invention concerne un polyéthylèneglycol hétérobifonctionnel présentant une liaison dégradable par hydrolyse, une première terminaison comprenant un groupe acrylate, et une seconde terminaison comprenant une cible telle qu'une protéine ou un agent pharmaceutique, ou bien une fraction réactive pouvant se lier à une cible. L'invention concerne également la préparation d'hydrogels. Ces hydrogels peuvent être utilisés comme vecteurs pour une protéine ou un agent pharmaceutique qui peut être facilement libéré de façon contrôlée.
Patent CA-2317060-C (CA)
Title: Tensive cutting head assembly
Inventor: JENSEN RALIEGH J
IPC: B26D3/18
Filed: 2000-08-25
Granted: 2006-01-24
Abstract: A cutting head assembly having a tensionable serpentine blade. The cutting head assembly may also include a means for monitoring tension during set-up of the cutting head assembly and monitoring tension and sensing failure or breakage during operation. The serpentine blade is formed having a continuous configuration including a plurality of leg segments connected by a plurality of bends producing a generally serpentine configuration. The cutting edge of the serpentine blade is unsharpened. Either edge of the serpentine blade may be employed for the cutting edge. A serpentine blade may be removably mountable to one or both sides of the cutting head. In the case where a serpentine blade is mounted to both sides of the tensive cutting head, the first serpentine blade presents a first array and the second serpentine blade presents a second array rotated at 90° to the first array. This configuration of the cutting head assembly, when employed within a hydraulic cutting device, renders cut food product having stick configuration.
Patent CA-2318984-C (CA)
Inventor: KALLIONIEMI OLLI
IPC: G01N1/36
Filed: 1999-02-24
Granted: 2009-04-28
Abstract: L'invention concerne une technique sur la base d'arrangements facilitant une définition de profil rapide et en corrélation de nombre de copies et d'expression de gènes d'un très grand nombre de tumeurs humaines. On peut former des arrangements de centaines de biopsies de tissus cylindriques (de diamètre égal à 0,6 mm) provenant de régions morphologiquement représentatives de tumeurs individuelles, dans un bloc de paraffine unique. Les sections consécutives provenant de ces arrangements forment des cibles de visualisation et de quantification in situ de cibles d'ADN, d'ARN ou de protéines. Par exemple, les amplifications de six loci (mybL2, erbB2, cyclin-D1, myc, 17q23 et 20q13) ont été rapidement déterminées par hybridation in situ par fluorescence à partir de 372 cancers du sein fixés par éthanol. La stratification des tumeurs par un récepteur d'oestrogène et des données d'expression p53 a révélé différents modèles d'amplification génique dans les différents sous-groupes de cancer du sein pouvant être utiles au diagnostic. La technique d'arrangements de tissus s'utilise pour la définition de profil moléculaire rapide de centaines de prélèvements de tissus normaux et pathologiques ou de cellules en culture.
Patent CA-2318986-C (CA)
Inventor: NISSING NICHOLAS JAMES
IPC: A47K10/32
Filed: 1999-01-25
Granted: 2007-04-10
Abstract: A single- or multi-ply disposable wiping article is disclosed. The disposabl e wiping article comprises at least one web layer and has a surface topography exhibiting regions of minimum and maximum calipers. A continuous polymer network defining bonded regions and a plurality of unbonded regions is bonded to the web layer. The continuous polymer network is preferably a thermoplastic adhesive. After curing, the thermoplastic adhesive can contract upon heating, thereby creati ng puckered regions of maximum caliper coincident unbonded regions. The minimum caliper of the web layer is coincident the bonded regions. Methods of making the web of the present invention are disclosed. One method includes providing a first web layer, providing a thermoplastic adhesive; applying the thermoplastic adhesive to the first web layer in a continuous network; curing the thermoplastic adhesive; and heating the thermoplastic adhesive to effect contraction of the thermoplastic adhesive.
Patent CA-2324034-C (CA)
Title: Compositions cosmetiques contenant un copolymere vinyl dimethicone/dimethicone en emulsion aqueuse et un epaississant et leurs utilisations
Inventor: DECOSTER SANDRINE
IPC: A61K8/81
Filed: 2000-10-19
Granted: 2006-12-19
Abstract: L'invention concerne de nouvelles compositions cosmétiques comprenant dans u n milieu cosmétiquement acceptable au moins un copolymère diméthicone à insaturation éthylénique/diméthicone de viscosité comprise entre 10 6 et 100.10 6 cP en émulsion aqueuse et au moins un épaississant non cellulosique. Cette association apporte des propriétés cosmétiques (lissage, légèreté, douceur) sans phénomène de regraissage des fibres kératiniques. Ces compositions sont utilisées notamment pour le lavage et/ou le conditionnement des matières kératiniques telles que les cheveux ou la peau.
Patent CA-2327699-C (CA)
Inventor: HOFFMAN JOSEPH A
IPC: F21V8/00
Filed: 1998-08-26
Granted: 2006-03-14
Abstract: A coupling system for light conduits in a light distribution system (100) and a light distribution system (100) utilizing the coupling system. The coupling system includes first (30) and second (50) collars. The first collar (30) has a first opening (29), a first side adapted to couple to an end of the first light conduit (20), and a second side (40) adapted to operatively engage with a second collar (50). The second collar (50) has a second opening (59), a first side adapted to couple to an end of the second light conduit (22), and a second side adapted to operatively engage with the second side of the first collar (30). Registration member (46, 54) maintain rotationally and axially alignment of the first (29) and second (59) openings of the first (30) and second (50) collars at a conduit interface. A retaining mechanism maintains axial engagement of the first collar (30) with the second collar (50).
Patent CA-2333676-C (CA)
Title: Ensemble humidificateur
Inventor: FITZWATER DENNIS
IPC: A61M16/10
Filed: 1999-05-28
Granted: 2009-02-24
Abstract: L'invention porte sur un ensemble humidificateur comprenant une cartouche (10) fixée dans la cavité d'une chambre d'humidification de façon à déplacer entre environ 20 % et environ 80 % du volume de la cavité.
Patent CA-2335811-C (CA)
Title: Method and apparatus for the production of purified plasma proteins
Inventor: SHANBROM EDWARD
IPC: C07K1/30
Filed: 1998-06-23
Granted: 2006-01-31
Abstract: Enhanced production of cryoprecipitate is produced by dehydrating an individual unit of plasma prior to a low temperature step used to produce cryoprecipitate. This dehydration is accomplished either by placing a water absorbing material within a blood bag so that plasma occupying the bag will become dehydrated or by placing the water absorbing material within a cartridge so that plasma becomes dehydrated upon flowing through the cartridge. The preferred water-absorbing material is a cross-linked chromatographic gel having pores too small to admit clotting proteins, but large enough to admit water molecules. Suitable gels are made from carbohydrates or polyacrylamide. Carbohydrate ge ls such as Sephadex.RTM., produced by Pharmacia-Upjohn, are particularly preferred in the present invention. An alternative embodiment of the invention replace s the simple water-absorbing gel with one that also has ion exchange capabilities, such as DEAE (diethy-aminoethyl) Sephadex.RTM. which has a special affinity for a number of blood clotting factors collectively known as the prothrombin complex. Following the dehydration step the DEAF Sephadex.RTM. is eluted to produce prothrombin complex.
Patent CA-2338591-C (CA)
Title: A direct smelting process
Inventor: DRY RODNEY JAMES
IPC: C21C5/56
Filed: 1999-07-26
Granted: 2009-09-08
Abstract: A process for direct smelting a metalliferous feed material is disclosed. The process includes the steps of partially reducing metalliferous feed material and subsantially devolatilising coal in a pre-reduction vessel and producing a partially reduced matelliferous feed material and char. The process also includes direct smelting the partially reduced matalliferous feed material to molten metal in a direct smelting vessel using the char as a source of energy and as a reductant and post-combusting reaction gas produced in the direct smetling process with pre-heated air or oxygen-enriched air to a post-combustion level of greater than 70 % to generate heat required for the direct smelting reactions and to maintain the metal in a molten state.
Patent CA-2343396-C (CA)
Title: Attache en plastique pour vetement et procede d'utilisation correspondant
Inventor: DESCHENES CHARLES L
IPC: G09F3/12
Filed: 1999-09-09
Granted: 2007-11-13
Abstract: L'invention concerne une attache (11) en plastique comportant un premier élément transversal (15) et un second élément transversal (17).
Patent CA-2348773-C (CA)
Title: Functional antagonists of hedgehog activity
Inventor: WILLIAMS KEVIN
IPC: C12N15/09
Filed: 1999-11-02
Granted: 2010-04-13
Abstract: Variants of hedgehog protein that contain N-terminal modifications are described that can block hedgehog function; thus allowing these variants to serve as functional antagonists. These peptides have a primary amino acid sequence lacking the ability to elicit a hedgehog-dependent response in C3H 10T1/2 cells but having the ability to bind to the hedgehog receptor, patched-1. Methods for producing such functional antagonists and methods of using the funtional antagonists are also described.
Patent CA-2349335-C (CA)
Title: Signalling of bouquet information in a digital transmission system
Inventor: REY FRANCOIS
IPC: H04H20/00
Filed: 1999-11-05
Granted: 2011-01-04
Abstract: A method of transmission of digital informa-tion in a digital communication network, the net-work comprising at least one transport stream carry-ing one or more bouquet related tables such as BAT  tables (53, 54) containing information regarding the services provided in a commercial bouquet and char-acterised in transmitting at least one table (51) com-prising a list of bouquet identity values of some or all of the bouquet association tables together with an indication of the or each transport stream carry-ing that table or tables. In a particularly preferred embodiment, the table (51) containing a list of bou-quet identity values may correspond to the Network Information Table of a network. The present inven-tion also extends to the identification of any fixed PID, TID tables that may only be distinguished by their TID extension values. The present invention is particularly applicable to digital television systems conforming to the MPEG-2 and DVB proposed stan-dards.
Patent CA-2351135-C (CA)
Inventor: HARINGER ALOIS JOHANN
IPC: B62D55/04
Filed: 2001-06-21
Granted: 2009-09-01
Abstract: The invention relates to a vehicle which can be used in particular as an agricultural vehicle and/or for construction purposes and comprises at least one vehicle frame, a drive and an undercarriage in each case. The core of the invention resides in the undercarriage 4, 4a including on both sides wheels 12, 13 having tyres, and/or chain wheels 70a, 71a having crawler tracks/chains 72a, which are arranged one behind another in the running direction and as wheel groups 11, 11a, and also can be steered in each case as a wheel group 11, 11a and can be pivoted about a Y-axis 19/transverse axis arranged transversely with respect to the X-axis 20/longitudinal axis of the vehicle 1, 1a.
Patent CA-2351912-C (CA)
Inventor: INAZAWA TSUGUO
IPC: C22C13/00
Filed: 2001-06-27
Granted: 2007-12-18
Abstract: Pb-free soldering alloy that does not include any amount of Pb is proposed. The soldering alloy prevents Cu comprised in a printed--circuit board from combining Ni comprised in the soldering alloy at the soldered part, that is, prevents Cu from being precipitated and diffused in the soldering alloy sufficiently, suppresses the generation of fine cracks at the soldered part and raises the mechanical strength of the soldered part. The Pb-free soldering alloy is characterized in that it comprises Ag of 3.5 to 6.0 wt.%, Ni of 0.001 to 1.0 wt.% and Sn of the balance.
Patent CA-2352918-C (CA)
Title: A method and apparatus for monitoring live electrical equipment at high or medium voltage
Inventor: HAMEURY HERVE
IPC: G01R31/308
Filed: 2001-07-11
Granted: 2012-03-20
Abstract: An apparatus for monitoring live electrical equipment at high or medium voltage, the apparatus comprising: - at least one sensor unit placed on the equipment, comprising a first radio antenna, a sensor for producing a digital signal related to a determined physical parameter at a point to be monitored, and amplitude- modulation means connected to the sensor and to the first antenna, and activated by the energy received by said antenna; - a transceiver unit placed outside the equipment and having a second radio antenna for illuminating the first antenna, a power supply source, and signal processing means connected to the second antenna; and - the first antenna retransmitting towards the second antenna the radio wave that has been transmitted thereby, while simultaneously amplitude-modulating it in response to the output signal of the sensor, said processing means being arranged to provide a signal related to said parameter.
Patent CA-2355928-C (CA)
Inventor: VATANEN HARRI
IPC: H04L9/32
Filed: 1999-12-15
Granted: 2009-02-10
Abstract: Method for digitally signing an electronic form in a secure manner by means of a mobile station. In the method, the material to be signed, which comprises a form, its identifier, shared information, and/or essential information added to it, is transferred to the mobile station, a first hash code (H1) is computed from the material to be signed, the hash code is added to the material for transfer into the mobile station, the material transferred into the mobile station is signed digitally by means of the mobile station and the authenticity of the signed and transferred material is verified by comparing the signed hash code with the hash code computed from the material before the signature. Thanks to the invention, a mobile station can be safely used for digital signature in various applications.
Patent CA-2366250-C (CA)
Title: Wdm optical communication system using co-propagating raman amplification
Inventor: DU MEI
IPC: H04B10/2543
Filed: 2001-12-27
Granted: 2006-10-03
Abstract: The use of a co-propagating fiber Raman amplifier in an optical WDM transmission system has been found to be practical in the situation where the fiber amplifier is operated into depletion and the characteristics of the input signals are controlled to exhibit a reduced integrated relative intensity noise (RIN) over the fiber crosstalk bandwidth. In particular, the reduction in the integrated RIN can be achieved by increasing the number of input channels (by adding more messages or simply using dummy channels), encoding the data in a particular fashion to reduce the integrated RIN, or decorrelating the plurality of N input signals below a predetermined, relatively low frequency (for example, 2MHz).
Patent CA-2369452-C (CA)
Title: Method and waveguides for changing the direction of longitudinal vibrations
Inventor: BEAUPRE JEAN M
IPC: B06B3/00
Filed: 2002-01-29
Granted: 2011-08-02
Abstract: A curved ultrasonic waveguide, as used in an ultrasonic surgical instrument, comprises two curved half-wave sections, having similar vibratory motion at their respective distal tips, which are integrally or compressively joined at the distal tips to create a single waveguide with a sharper bend radius than is conventionally possible. The resulting waveguide does not produce parasitic motion or generate excessive heat at the input or output portions of the waveguide.
Patent CA-2376827-C (CA)
Title: Composition and method for sealing an annular space between a well bore and a casing
Inventor: CHAVEZ JUAN CARLOS
IPC: C09K8/42
Filed: 2002-03-14
Granted: 2005-01-04
Abstract: A method for sealing an annular space between a bore hole and a casing includes the steps of: providing a fluid sealing system comprising a particulate material and a bonding agent; positioning the fluid sealing system in the annular space whereby the particulate material adheres to walls of the bore hole and the casing; and curing the fluid sealing system so as to form a solid seal in the annular space.