baber/WOPTO huggingface dataset:
Patent CA-2154854-C (CA)
Inventor: SUGDEN WILLIAM M
IPC: A61K38/19
Filed: 1995-07-27
Granted: 2006-03-14
Abstract: This invention is directed to construction of recombinant plasmids that contain the Epstein-Barr virus ("EBV") genetic information involved in the immortalization of human lymphocytes, but that lack one or more genes implicated in EBV lytic replication. The recombinant plasmids have the advantage of being able to immortalize human lymphocytes, while being incapable of generating infectious EBV particles. The invention also provides human lymphocytes that have been successfully infected and immortalized by the recombinant plasmids. These human lymphocyte clones can be used as cellular factories to produce desired proteins and as delivery vehicles for gene therapy. Additionally, the invention establishes a method by which desired proteins can be produced in immortalized cellular factories, without generating infectious EBV particles. These proteins can be the normal cellular products of immortalized human lymphocytes, or they can be proteins encoded by foreign genes, which have been cloned into the lymphocytes.
Patent CA-2158412-C (CA)
Inventor: TAUB DAVID B
IPC: B01D45/16
Filed: 1995-09-15
Granted: 1999-06-29
Abstract: A mass contactor apparatus is provided which includes an annular-shaped enclosure having an inlet for introducing gas thereinto. An entrainer deflects air flowing into the inlet into a hollow interior region of the entrainer, thereby creating a vortical flow of gas within that hollow interior region. An annular outlet enables the vortical gas flow to move upwardly and out of a central region of the entrainer. A de-entrainer is positioned directly upon the entrainer for deflecting vortical flow, entering into an inlet of the central region surrounding the outlet, radially-outwardly through spaces provided between vertically-aligned, curved deflection plates in the de-entrainer to create an upward, outward circular flow along an interior surface of the enclosure. A  liquid source delivers liquid to the hollow interior region of the entrainer so that the vortical gas flow draws the liquid into intimate contact therewith. This causes the liquid to be accelerated and broken up into a cloud of droplets which approach a velocity of, and move in a direction of, the vortical gas flow. A cone is positioned directly upon a top of, and covers, the de-entrainer, thereby causing droplets to move downwardly along the cone, and thereby preventing the droplets from being re-entrained with upwardly flowing scrubbed gas in a central region of the enclosure.
Patent CA-2158539-C (CA)
Inventor: HEAMAN NORMAN LAVERNE
IPC: B21D11/00
Filed: 1995-09-18
Granted: 2000-05-23
Abstract: A pipe bending machine is described which utilizes a cord and lattice support structure having a first end, a second end, an interior lattice framework and an exterior connecting cord which connects the periphery of the interior lattice framework.  Pipe securing tie backs are secured to the support structure adjacent each of the first end and the second end. At least one pressure exerting hydraulic cylinder is secured to the support structure intermediate the first end and the second end.   The hydraulic cylinder has a pressure member movable in relation to the support structure thereby exerting a bending force upon a pipe held by the pipe securing means. The bending force places the interior lattice framework in compression and the connecting cord in tension.  The forces of compression and tension being off-setting thereby enabling the support structure to withstand the bending force.  The cord and lattice support structure, as described, enables the pipe bending machine to be made light enough to be carried by one man to remote locations along a pipeline right of way or other such construction sites.
Patent CA-2170239-C (CA)
Inventor: WEI LEE-FANG
IPC: H04N21/438
Filed: 1995-07-14
Granted: 2000-04-18
Abstract: An HDTV transmission system includes a Tomlinson precoder (17) in the transmitter in order to compensate for the forced intersymbol interference introduced by an NTSC rejection filter used in the receiver. The system employs one of a family of four-dimensional coded modulation schemes based on a six-signal-point, one dimensional base constellation.  The various schemes exhibit different amounts of so-called shaping gain and support respective different payload data rates. The characteristics of the Tomlinson precoder are such as to preserve a substantial portion of the shaping gain. The system may switch its operation among the various coded modulation schemes to account for changes in channel conditions and/or to accommodate different source signal bit rates.
Patent CA-2170252-C (CA)
Title: Appareil de torsion
Inventor: PHILLIPS DAVID GRAHAM
IPC: D02G1/08
Filed: 1994-09-15
Granted: 2005-08-09
Abstract: Un appareil pour retordre un toron en mouvement comprend une structure rotative (12) pouvant tourner autour d'un axe de rotation X-X et une série de poulies (48, 50, 52, 54 et 56) fixées sur la structure (12) en un ensemble placé autour de l'axe de rotation X-X. Chaque poulie de la série est fixée en vue de sa rotation sur la structure (12) de manière à pouvoir tourner autour d'un axe individuel de rotation de la poulie, généralement parallèle à l'axe X-X et se déplaçant autour de cet axe lors de la rotation de la structure (12). Une poulie guide (60) d'entrée de toron guide un toron d'entrée à retordre dans une trajectoire dans laquelle il va successivement se mettre en prise avec les poulies (48, 50, 52, 54 et 56). Par ailleurs, une poulie guide (62) de sortie de toron guide le toron depuis cette trajectoire le long de l'axe X-X. La structure rotative (12) est entraînée par un arbre d'entraînement (16) et les poulies (48, 50, 52, 54 et 56) sont entrainées en rotation par les engrenages (32).
Patent CA-2171095-C (CA)
Title: Massaging apparatus
Inventor: MASUDA TERUO
IPC: A61H37/00
Filed: 1995-04-14
Granted: 2000-01-18
Abstract: A guide unit (4) is held by a holding unit (1) in a predetermined state and has a guide section (4e). A travelling unit (21a, 21b) is so mounted on the guide section (4e) as to be freely run. The travelling unit (21a, 21b) is driven, by a drive unit (10), in reciprocatory motion along the guide section (4e). Roller supports (35) are mounted on the travelling unit (21a, 21b) and massage rollers (53) are mounted on the roller support (35) such that their rotation center lies in a direction intersecting with a run direction of the travelling unit (21a, 21b). At least one of the roller support (35) and massage roller (53) is rotatably mounted on the travelling unit (21a, 21b).
Patent CA-2175121-C (CA)
Inventor: CORDERY ROBERT A
IPC: G06Q20/00
Filed: 1996-04-26
Granted: 2000-06-27
Abstract: A method for controlled acceptance mail payment and evidencing in accordance with the present invention includes creating a mail batch with a plurality of mailpieces each having an encrypted indicia printed thereon. A mail documentation file is created containing the total weight of the mail batch, the total payment for the mail batch and mailer identification, all of which are digitally signed to facilitate a subsequent verification of the integrity of the data. The digital signature is included as part of the mail documentation file. The mail batch and mail documentation file are submitted to a carrier distribution system. The carrier processes the batch of mail and the mail documentation file as part of the carrier distribution process to determine the total weight of the batch of mail and verify the weight of the actual batch of mail in comparison to the total weight of the batch of mail as set forth in the mail documentation file.
Patent CA-2177610-C (CA)
Title: Retention bolsters for percutaneous catheters
Inventor: RUSSO RONALD D
IPC: A61M25/00
Filed: 1994-12-07
Granted: 2007-01-16
Abstract: Retention bolsters (50) for a percutaneous catheter (28) are disclosed which have a convexly curved exterior surface (58) which contacts the epidermal surface (40) of a patient, and which also provide protection against the catheter (28) from kinking. The retention bolsters (50) slide over a catheter (28) until contacting the skin of the patient at the catheter exit site (36). When secured in place, the bolsters (50) rock along contacting portions between a convexly curved surface (58) and the epidermal surface (40) of the patient in response to movement of the catheter (28) about the exit site (36), thereby alleviating the added pressure that would otherwise be applied by this movement. Upon the release of lateral pressure against the catheter device (28), the bolsters (50) return to their original upright position.
Patent CA-2181927-C (CA)
Title: Lit fauteuil a sortie par le pied
Inventor: FOSTER L DALE
IPC: A61G5/14
Filed: 1995-04-28
Granted: 2000-04-11
Abstract: Lit d'hôpital (10) transformable en fauteuil permettant au patient de sortir par le pied du lit. La plate-forme (18) supportant le patient comporte une suite de panneaux articulés normalement horizontaux, correspondant respectivement à la tête (28), au siège (30), aux cuisses (32) et aux pieds (34). Pour transformer le lit en fauteuil, la plate-forme (18), abaissée au maximum en position horizontale est translatée longitudinalement vers le pied du lit (10) tandis que les panneaux de tête et de pied sont respectivement inclinés vers le haut, et vers le bas sensiblement jusqu'à la verticale. Le panneau de pied (34) comporte une partie pliable (46) qui coulisse dans l'une des parties pivotantes et évite les contacts avec le sol lorsque le panneau (34) de pied est amené à la verticale.
Patent CA-2184018-C (CA)
Title: Method for logical network design in multi-service networks
Inventor: MITRA DEBASIS
IPC: H04L12/56
Filed: 1996-08-23
Granted: 2002-11-26
Abstract: A method is described for network optimization based on a multirate, circuit-switched analysis. Network loss probabilities are determined as a solution of a set of fixed point equations and the sensitivity of network performance, as a function of offered load and loss probabilities, is determined as a solution to a set of linear equations. Because the numerical complexity of solving both the fixed point equations and the sensitivity equations is of an order which renders an exact solution computationally intractable, an asymptotic approximation is applied which yields a solution to the network loss probabilities and network sensitivities. A global optimization procedure is then applied using an iterative, steepest ascent optimization procedure to yield a set of virtual path routings and capacity allocations.
Patent CA-2184870-C (CA)
Inventor: WERNER THOMAS
IPC: H01R13/66
Filed: 1996-09-05
Granted: 2000-02-08
Abstract: A plug connector is provided, in particular for the connection of measuring instruments, which is to be connected to a plug having three flat elongated contact pins, a flat elongated protective contact pin and a threaded hole arranged in its center, said plug connector having a low maximum cross-sectional area and a high tightness. This plug connector comprises a housing (1) partly forming a cone (11), a hollow cylinder (12) which is molded onto the cone (11) on the side facing away from the plug and has an external thread (121), a nut (5) screwed onto the hollow cylinder (12), a sealing element (4) which completely fills the hollow cylinder (12) and the nut (5), a four-way cable (3) which penetrates the nut (5) and the sealing element (4) in the axial direc-tion, a groove (14), arranged on the side of the housing (1) facing toward the plug, to accommodate a seal (6), a ring (15) which is molded on the cone (11) on the side facing toward the plug and encloses the plug coaxially at the end, and a contact insert (2) arranged in the housing (1), in which four flat contact clamps, to which the ways of the cable (3) are connected, are arranged in a countersunk fashion, which contact insert has a central axial hole (27) in which a screw (7) for securing the plug connector on the plug is captively arranged, and which is fixed nonrotatably in the housing (1) by means of a bayonet closure and a locking tab (17) arranged in the housing (1) and can be detached only by means of a tool.
Patent CA-2188962-C (CA)
Title: High-frequency amplifier integrated circuit device
Inventor: SAKAMOTO KOICHI
IPC: H01L27/04
Filed: 1996-10-28
Granted: 1999-09-14
Abstract: A high-frequency amplifying integrated-circuit device is provided in which variations of gain can be reduced and which can be manufactured at a low cost as compared with prior art devices.  A high-frequency amplifying integrated-circuit device includes a semiconductor substrate; and a transistor which is formed on the semiconductor substrate and which has a plurality of first electrodes, a plurality of second electrodes, and at least one third electrode, a high-frequency signal input to the plurality of second electrodes being amplified by the transistor and output from the third electrode, wherein at least two first electrodes from among the plurality of first electrodes are each grounded via a capacitor, and the electrostatic capacitance values of the two capacitors are set at mutually different values.
Patent CA-2192279-C (CA)
Inventor: JEFFCOAT NORMAN C
IPC: B26B5/00
Filed: 1996-12-06
Granted: 2000-01-04
Abstract: An ergonomically-designed, multipurpose knife having a handle, a blade with a shank and a tip, and a fastener for attaching the handle to the shank. The blade has a curved outer edge extending substantially from the shank to the tip, with an integrally-formed gut hook positioned near the shank and opening toward the tip. A portion of the outer edge is sharpened to form a cutting edge. The fastener is user-operable for moving the blade from a first operating position where it opposes the handle to a second operating position where it extends forward of the handle for use as a hatchet. In the first position, force exerted on the handle and directed toward the blade is distributed approximately uniformly along the entire length of the outer cutting edge. Skinning cuts are made by grasping the handle and pivoting the wrist to produce controlled strokes approximately in the plane of the blade; chopping and slicing cuts are made by pivoting the wrist to rock the knife about an axis transverse to the plane of the blade. The user can control the length and direction of a cut by pivoting the wrist alone, the forearm at the elbow, the entire arm from the hand gripping the knife to the shoulder, or by pushing or pulling the knife with the hand and forearm, or any combination thereof. Range of motion, dexterity and control of the cutting edge are thereby improved, with greater comfort than is possible with a conventional knife.
Patent CA-2192330-C (CA)
Title: Circuits de magnetometre de basse puissance
Inventor: HAWKS TIMOTHY J
IPC: G01R33/02
Filed: 1995-06-08
Granted: 2000-12-26
Abstract: L'invention a pour objet des circuits de magnétomètre dans lesquels une bobine (3) de capteur solénoïdal, comprenant un noyau saturable (2) est pourvue d'un potentiel de source (Vs) afin d'amener la bobine à saturation, avant désactivation du potentiel vers la bobine. Le courant parcourant la bobine est détecté et le champ magnétique dans la bobine peut être déterminé en fonction du temps nécessaire pour que le courant dans la bobine diminue et passe d'un premier niveau à un deuxième niveau. Un capteur (4) de courant connecté à la bobine du capteur fournit un premier signal de sortie en réponse au courant parcourant la bobine, qui augmente jusqu'à une première valeur dans une première partie d'un cycle opérationnel. Il fournit, par ailleurs, un deuxième signal de sortie en réponse au courant parcourant la bobine, qui diminue pour passer à une deuxième valeur. Le temps entre les premier et deuxième signaux de sortie provenant du capteur de courant indique la grandeur du champ de la bobine.
Patent CA-2194370-C (CA)
Title: Attenuation of wound healing processes
Inventor: VLODAVSKY ISRAEL
IPC: A61K38/51
Filed: 1995-07-07
Granted: 2001-02-27
Abstract: Glycosaminoglycans, including heparinases 1, 2 and 3 as well as chondroitinases AC and B from the Gram negative bacteria Flavobacterium heparinum, can be used either separately or in combination to manipulate cell proliferation. In one embodiment, heparinases are administered to degrade heparan sulfate components of the extracellular matrix, thereby allowing the heparin binding growth factors which are stored in the extracellular matrix to migrate to adjacent cells. The mobility of chemoattractant agents, growth factors and cells also can be increased by treating tissues with glycosaminoglycan degrading enzymes, both chondroitinases and heparinases. The enzymatic removal of chondroitin sulfates from cell surfaces effectively increases the availability of growth factor receptors on the cell's surface.  Selectively removing heparan sulfate from cell surfaces while leaving the extracellular matrix intact, conversely, inhibits cell proliferation by down regulating the cell's response to growth factors. This is achieved by targeting heparin or heparan sulfate degrading activites to the cell surface.  Targeting the heparin degrading activity can be achieved by genetically engineering a ligand binding functionality into the heparinase proteins, or by physically controlling the localized enzyme concentration through the method of administration.
Patent CA-2202619-C (CA)
Title: Improved sulfur separation system
Inventor: NAGL GARY J
IPC: C01B17/02
Filed: 1995-09-18
Granted: 2000-05-09
Abstract: A liquid separator system for separating molten sulfur from liquid redox solution or reslurry water. The system includes a vessel with a top part and a bottom part. The vessel has a larger diameter at the top part than at the bottom part, and the cross section of the vessel downwardly decreases from the top part to the bottom part of the vessel. The system also includes an inlet for introducing a redox solution or reslurry water and molten sulfur, which is denser than redox solution or reslurry water, into the vessel. An outlet near the bottom part of the vessel allows a flow of the molten sulfur from the vessel. An interface control structure senses an interface level between the redox solution or reslurry water and the molten sulfur, and the interface control structure controls the flow of molten sulfur from the outlet. The interface control structure is adjusted to optimally alter the vertical height of the interface level within the vessel so that the residence time of the molten sulfur in the vessel does not decrease as the sulfur production throughput decreases, and so that the interface area of the molten sulfur and the redox solution is reduced as the sulfur throughput decreases.
Patent CA-2203587-C (CA)
Inventor: HIRANO HIROSHI
IPC: F28D7/16
Filed: 1997-04-24
Granted: 2007-01-02
Abstract: A heat exchanger tube supporting plate which reduces or prevents scaling of magnetite, etc., and a process for manufacturing it. This may be accomplished by chrome coating the plate.
Patent CA-2205621-C (CA)
Title: Modular injection mold assembly
Inventor: TRAVAGLINI NICOLA
IPC: B29C45/40
Filed: 1997-05-16
Granted: 2005-02-22
Abstract: A modular injection mold assembly having a core part with an ejector box side securable to a mold base and a core side presenting a first mold face on an outer surface. The assembly further includes a cavity part presenting a second mold face mountable opposite the first mold face. An ejector assembly is mounted within the ejector box side of the core part and has a base member and at least one ejector pin extending from the base member through the core. The ejector assembly is movable relative to the core between a retracted position in which an outer end of each of the ejector pins forms part of the first mold face and an extended position wherein the outer end of each of the ejector pins protrudes from the first mold face. The base member of the ejector assembly further includes a cam follower for causing the ejector assembly to move from the retracted position to the extended position in response to input from a cam mounted to either the mold base or the core.      The mold assembly is removable from the mold base as a unit with the ejector assembly and exchangeable for another mold assembly without removal of the ejector pins from the core part.
Patent CA-2207615-C (CA)
Title: Spray dried erythropoietin
Inventor: MEHTA DEEPAK B
IPC: A61K38/22
Filed: 1995-12-15
Granted: 2010-12-14
Abstract: The present invention provides a method for preparing stable, spray dried rhEPO and the rhEPO powder produced thereby.
Patent CA-2208661-C (CA)
Title: Downhole electricity transmission system
Inventor: VAN GISBERGEN STANISLAUS JOHAN
IPC: E21B47/12
Filed: 1996-01-03
Granted: 2006-11-28
Abstract: A downhole electricity transmission system utilizes the wall of an electrically conductive reelable pipe (6) of which the other surface is covered by an electric insulating material to transmit electric signals and/or power to and/or from a downhole location of an underground borehole.
Patent CA-2209162-C (CA)
Inventor: FISCH MATTHEW A
IPC: G06F13/40
Filed: 1997-06-27
Granted: 2002-02-12
Abstract: A computer system providing a universal architecture includes a processor card connected to a system bus of a host computer system. The processor card is adapted for insertion into a slot of the computer system and houses a processor and a bus bridge conversion device. The processor operates according to a signaling protocol which is different than the signaling protocol of the computer system bus. The bus conversion device converts the signaling protocol of the system bus to the signaling protocol of the processor, and vice-versa. The bus conversion device includes logic for bus arbitration conversion, bus lock conversion, and cache coherency control. Logic is also included that converts incoming and outgoing requests so that the card may properly transact with other agents coupled to the bus.
Patent CA-2212292-C (CA)
Inventor: BURZIO MARCO
IPC: H04L7/033
Filed: 1997-07-30
Granted: 2001-10-16
Abstract: A device and a method for aligning in time two essentially isochronous digital signals are provided, in which a plurality (2n) of replicas (CK1-CK4) of the first signal (CKIN), separated by a given phase difference, are generated and a number of said replicas (CK3, CK4) is subjected to sampling (4, 5) in correspondence with the rising edges of the second signal (DATA). As the result of the sampling, a combination of logic signals (SL0, SL1) is obtained which is representative of the phase relation existing between each of said replicas (CK1-CK4) and the second signal (DATA). The output signal (CKOUT) of the device, aligned with the second signal, corresponds to the one, among the replicas (CK1-CK4) of the first signal, which best reproduces the desired alignment condition.
Patent CA-2213101-C (CA)
Inventor: MELSKY GERALD S
IPC: A61M1/14
Filed: 1996-02-08
Granted: 2010-07-20
Abstract: L'invention porte sur un dispositif d'accès au système vasculaire pour hémodialyses comportant une paire de coquilles creuses sensiblement coniques présentant chacune une extrémité d'introduction relativement large et une extrémité d'évacuation relativement étroite et un axe reliant lesdites extrémités, les coquilles se touchant par ailleurs selon une ligne de tangence. Une paire de membranes auto-obturantes ferment les extrémités d'introduction des coquilles et une paire de tubes d'évacuation intégrés partent des extrémités d'évacuation des coquilles, les extrémités distales desdits tubes étant séparées et parallèles à la ligne de tangence.