baber/WOPTO huggingface dataset:
Patent CA-2227461-A1 (CA)
Title: Doped amorphous and crystalline gallium oxides, alkaline earth gallates and doped zinc germanate phosphors as electroluminescent materials
Inventor: XIAO TIAN
IPC: C09K11/77
Filed: 1996-07-04
Abstract: New oxide phosphors based on doped gallium oxides, alkaline earth gallates and germanates for electroluminescent display materials. Bright orange red electroluminescence has been obtained in amorphous and crystalline oxides Ga2O3:Eu for the first time. SrGa2O4 and SrGa4O9 doped with 1-8 mole % of Eu and Tb, CaGa2O4, Ca3Ga2O6 and CaGa4O7 doped with 1-4 mole % of Eu, Tb, Pr and Dy, BaGa2O4 doped with 1-2 mole % of Eu and Tb, have been prepared using RF magnetron sputtering onto ceramic dielectric substrates and annealed at 600 °C - 950 °C in air or Ar for 1-2 hours. Bright electroluminescent (EL) emission was obtained with wavelengths covering the visible sprectrum from 400 to 700 nm, and infrared emission above 700 nm with spectral peaks characteristic of rare earth transitions. The films of CaGa2O4 with 1 mole % Eu achieved 22 fL (75 cd/m2) at 60 Hz and had a maximum efficiency of 0.2 lm/w for red emission. An amorphous thin film of Ca3Ga2O6 with 2 mole % Eu achieved 34 fL in red EL  at 60 Hz when annealed at 600 °C. SrGa2O4 with 1 mole % Eu and 4 mole % Tb yielded "white" phosphor having red, green and blue emission (13 fL at 60 Hz), and SrGa2O4 with 8 mole % Tb resulted in a blue and green phosphor measuring 30 fL at 60 Hz.  Zn2Si0.5Ge0.5O4 containing Mn was sputtered using magnetron RF sputtering onto ceramic dielectric substrates and annealed at 700 °C  for 1 hour in air or argon. Bright green (540 nm) emission was obtained in electroluminescence: 110 fL (377 cd/m2) at 60 Hz with a maximum efficiency of 0.9 l/w. Moderately bright red emission (640 nm) was also obtained.
Patent CA-2234779-A1 (CA)
Inventor: SAUKKONEN SEPPO
IPC: B32B7/00
Filed: 1998-04-15
Abstract: The present invention is related to a method of surfacing at least one wide side of a board-like substrate, in which method at least one wide side of the substrate board and at least one sheet or web of the surfacing material are placed opposing each other. In the method, the surfacing material (1) and the board-like object (2) of the substrate material are transferred into a positioning station so that the at least one aligned edge of the surfacing material (1) and the board-like substrate (2), respectively, are made to desiredly overlap or underlap the respective edge of the opposed element surface, or alternatively, that at least one of said edges is placed essentially aligned with other respective edge of the opposed element surface, irrespective of the initial position or alignment of the surfacing material (1) and/or the board-like substrate (2) to be transferred into the positioning station.
Patent CA-2235114-A1 (CA)
Title: Wheel and tire assembly
Inventor: CLERGER JOSEPH B
IPC: B60C15/024
Filed: 1998-04-17
Abstract: A wheel assembly includes a tire having a bead seat angle in the range 10° to 12°, preferably 11 °, and an aspect ratio of less than 60%. Such wheel assembly results in reduced bounce and improved bead retention. The wheel assembly further includes a rim having a bead support portion terminating in a radially outwardly projecting flange. The flange is curved and supports the sidewall of the tire in flexure to reduce rolling of the bead seat.
Patent CA-2236635-A1 (CA)
Inventor: SCREPTOCK SYLVIA J
IPC: C02F1/68
Filed: 1998-05-04
Abstract: Apparatus for delivering a water treatment chemical to a water intake in a water system is disclosed. The water system has a water inlet and a pump for withdrawing water from a natural body of water, such as an underground aquifer, a river, a lake or the like. In a water system that draws water from a body of water that is inhabited by zebra mussels, the apparatus is operable, when water is being drawn into the system, to deliver a zebra mussel control agent to the inlet of the system to eliminate zebra mussels, if present, from the water system and to prevent the infestation of the water system by zebra mussels. In a water system that draws water from an underground aquifer, the apparatus is operable, when the system is drawing water, to deliver a water treatment chemical to or near the water inlet for the system and to cause thorough mixing of the water treatment chemical with the water, before it reaches a reservoir in the system, whereby undesired impurities are controlled or removed from the water. When the system is not drawing water, the apparatus is operable to prevent the discharge of the water treatment chemical.
Patent CA-2236932-A1 (CA)
Inventor: SAYER CHRIS
IPC: E21B23/14
Filed: 1996-09-18
Abstract: A spear head assembly (10) comprises a main body portion (14) with axially opposite first and second ends (16 and 18) respectively. The first end (16) is adapted for threaded connection with a down hole tool (12). The tool which does not form part of the invention is provided with an internal fluid flow path (13). Passage (20) is formed in the main body portion (14) and extends between first and second spaced apart openings O1 and O2 which are coincident with the first end and the second end (16 and 18) respectively of the main body portion (14). Spear point (22) is coupled to the main body portion (14) at, and extends from, the second end (18). In use, when the spear head assembly (10) is coupled to tool (12), to facilitate connection of the tool to a wireline and overshot via the spear point (22), the passage (20) is in fluid communication with the path (13). Therefore, fluid such as drilling mud can glow through the path (13) in a substantially unimpeded manner.
Patent CA-2239195-A1 (CA)
Inventor: HUANG JUN
IPC: F28D17/02
Filed: 1996-12-23
Abstract: A ceramic packing clement (500) is formed from a stack of ceramic plates (502) having parallel ribs (504) forming parallel grooves therebetween. The grooves are formed into channels by being contacted with the surface of an opposed plate. The ribs (504) may engage the end surfaces of ribs on an adjacent plate or may be interleaved with the ribs (504) of an opposed plate to form smaller channels. The plates (502) are adhered to each other by firing a stack of plates (502) in the green state or by adhering cured plates (502) by means of an inorganic adhesive such as sodium silicate. Pressure drop and cracking may be reduced, mass transfer and heat efficiencies increased by enlarging the inlets (542) to the channels and by providing perforations through the plates between the ribs (504). Elements may be preassembled into larger units before placement in a column by wrapping metal bands around an assembly of elements.
Patent CA-2241262-A1 (CA)
Title: Preparation of biscyclopentadienyl diene complexes
Inventor: TIMMERS FRANCIS J
IPC: C07F17/00
Filed: 1996-12-05
Abstract: Bicyclopentadienyl Group 4 transition metal complexes containing a conjugated diene ligand group wherein the diene is bound to the transition metal either in the form of a .sigma.-complex or a .pi.-complex are readily prepared by reacting in any order. a) a Group 4 metal salt corresponding to the formula M'X3 or M"X4, or a Lewis base adduct thereof, b) a conjugated diene, D', c) a reducing agent, and d) a compound of the formula: CpM* or (Cp-Cp)M*n, wherein M' is titanium, zirconium or hafnium in the +3 formal oxidation state; M" is titanium, zirconium or hafnium in the +4 formal oxidation state; X is a halide, C1-6 hydrocarbyloxy or di(C1-6 hydrocarbyl)amido group; D' is an uncoordinated dime having the same number of carbons as D and the same substitution pattern as D; M* is a Group 1 or 2 metal cation, a Grignard reagent cation or a tri(C1-6 hydrocarbyl)silyl group; and n is 1 when M* is a Group 2 metal cation and n is 2 when M* is a Group 1 metal cation, a Grignard reagent cation, or a trihydrocarbylsisyl group with the proviso that reagents a) and d) are not contacted with one another in the absence of reagent c).
Patent CA-2241905-A1 (CA)
Inventor: JACOBS ANDREW ROBIN
IPC: H04L12/24
Filed: 1996-12-30
Abstract: La présente invention concerne un système et un procédé de gestion d'un réseau de télécommunications. L'état d'éléments du réseau est géré par l'association et la corrélation d'évènements dans le réseau, à travers de nombreux domaines de ce réseau. Les éléments de celui-ci comprennent des éléments tangibles, tels que le matériel et l'équipement, et des éléments non tangibles, tels que les clients, les pays et les services. En incorporant une machine d'inférence, ou système expert, on infère les sources de problèmes dans le réseau, on évalue l'impact d'évènements survenant dans le réseau et on recommande des corrections.
Patent CA-2242244-A1 (CA)
Title: Connector for blast initiation system
Inventor: GLADDEN ERNEST L
IPC: C06C5/06
Filed: 1996-12-03
Abstract: A connector device (10, 110, 210) for transferring a non-electric blast initiation signal from a donor line (26, 224) to an acceptor line, e.g., an input stub (24, 217) has donor line retaining means for disposing a donor line (26, 224) in signal transfer relation to the input stub (24, 217). An anvil member (27, 130, 226) is provided to support input stub (24, 217) at the point where it is in signal transfer relation with the donor line (26), preferably in conforming contact with the donor line (26). In a particular embodiment, the connector device has a body portion (l0a) on which is retained a detonator cap (22). Cap (22) detonates upon receipt of a detonation signal from an input stub (24), optionally after a delay period if delay elements are incorporated into the detonator cap (22). The connector device (10) has retainer spring clips (20a, 20b) for retaining the donor line (26) in signal transfer relation to the input stub (24). An output line retaining member (16) holds the output line (28) in signal transfer relation to the detonator cap (22.)
Patent CA-2243647-A1 (CA)
Inventor: KIND DOUGLAS A
IPC: H04L12/417
Filed: 1997-02-03
Abstract: Apparatus and methods for transmitting digital multimedia signals in asynchronous transfer mode over unshielded twisted pair wiring in a multipoint topology in an improved cost-effective manner. The multimedia digital signals originate from and are received by a plurality of receiving stations connected via twisted pair wiring. The method comprises feeding input digital signals selected from the group consisting of voice, fax, video and data from signal nodes; controlling allocation of bandwidth to the input digital signals as between sending stations; providing a source data stream in binary format derived from allocated input digital signals; converting a source data stream into a digital symbol stream capable of being transmitted over the wiring;  driving and filtering the digital symbol stream over the wiring; splitting the filtered digital symbol stream into a plurality of replicated digital symbol streams; amplifying and selecting each of the plurality of replicated digital symbol streams to provide an amplified and selected digital symbol stream;  converting the amplified and selected digital symbol stream into a sink data stream in binary format; identifying and selecting desired digital signals of the sink data stream for the plurality of the receiving stations; and delivering the identified and selected digital signals to signal nodes.
Patent CA-2245335-A1 (CA)
Title: Air permeable liquid impermeable barrier structures and products made therefrom
Inventor: CIESIELSKI MARY GAIL
IPC: A61F13/514
Filed: 1998-08-19
Abstract: The present invention provides an air permeable, substantially liquid impermeable barrier structure and products made therefrom, such as sanitary napkins, pantiliners, incontinence products and diapers. The barrier structure has a porous layer having opposing sides, the porous layer having: a porous substrate having pores, which extend between the opposing sides that correspond to the opposing sides of the porous layer, whereby a liquid may transverse the substrate; and particles that are fused to at least one side of the porous substrate so as to restrict entry of the liquid into the pores; wherein the porous layer resists penetration by the liquid when it is contained in an absorbent structure that overlays the side of the porous layer to which the particles are fused, and is under a loading of one pound per square inch; and wherein the porous layer has a Frazier air permeability value in the range of greater than zero to about 80 mm3/ft2/min (861 mm3/m2/min). The air permeable, substantially liquid impermeable barrier structure is distinguished by having the particles that are fused to the porous substrate being predominantly on the surface of the porous substrate rather than being admixed with and penetrating the depth of the materials that comprise the porous substrate.
Patent CA-2245978-A1 (CA)
Title: Dust suction head for electric vacuum cleaner
Inventor: MORI YOSHIHIRO
IPC: A47L9/04
Filed: 1998-08-26
Abstract: A dust suction head for use in an electric vacuum cleaner, having an air suction port at the bottom of the head. The head has a brush chamber which accommodates therein a freely rotatable brush having blades that extend along the shaft of the rotational brush. The head additionally has an opening and an air passage connected with the opening for taking in and leading fresh air into the vacuum chamber of the cleaner through the brush chamber such that the fresh air passing through the brush chamber impinges on the blades to accelerate the rotational motion of the blades.     Thus, the head can obtain a necessary amount of air to rotate the brush at all times, especially when it is brushing a carpet, and maintain its smooth motion on the floor while dusting it.
Patent CA-2247029-A1 (CA)
Title: A process for the purification of opacifying contrast agents
Inventor: PIVA RODOLFO
IPC: B01D61/02
Filed: 1997-02-12
Abstract: A process for the purification of opacifying contrastographic agents, comprising chromatographic and nanofiltration techniques combined together, the subsequent chromatographic separation of the crude product solution and a nanofiltration step, with a final deionization on ion exchange resins.
Patent CA-2247050-A1 (CA)
Title: Revetement bacteriostatique pour une conduite en polymere
Inventor: FERRALLI MICHAEL W
IPC: B05D5/00
Filed: 1997-02-26
Abstract: Revêtement de conduit, obtenu en recouvrant une surface de ce dernier avec un matériau polymérique, lequel peut contenir un additif à base d'une matière bactériostatique, fongicide, fongistatique ou antimoisissure.  Le matériau de revêtement peut être réticulé par exposition à des rayonnements afin d'améliorer les caractéristiques du conduit à température élevée.
Patent CA-2247620-A1 (CA)
Inventor: LAUFFER RANDALL B
IPC: A61B5/055
Filed: 1997-03-25
Abstract: La présente invention se rapporte à des agents diagnostiques perfectionnés destinés à l'imagerie par résonance magnétique (IRM) et à l'imagerie optique. Elle se rapporte particulièrement à des agents pour IRM et imagerie optique qui permettent la détection sensible d'une bioactivité spécifique au sein d'un tissu. Ces agents sont des agents de contraste de type bioprécurseurs qui sont bioactivés in vivo en présence de la bioactivité spécifique. L'invention se rapporte en outre à des compositions pharmaceutiques contenant de tels agents et à des procédés d'utilisation de ces agents et des compositions contenant de tels agents.
Patent CA-2251396-A1 (CA)
Title: Heat disinfection of seeds
Inventor: ALNESS KENNETH
IPC: A61L2/04
Filed: 1997-04-10
Abstract: The invention relates to a heat treatment process for disinfection of seeds from pathogens and other undesirable fungi and bacteria, the process being characterised by supplying to the seeds non-water-borne heat while regulating the treatment time and temperature with regard to the condition and moisture content of the seeds in such a way that the seeds are heated from outside and in, while evaporation of moisture from the surface of the seed, and owing to that, cooling of the same is prevented and no changes in the moisture content occur.
Patent CA-2251623-A1 (CA)
Inventor: VENTOURAS KIMON
IPC: A61P25/20
Filed: 1997-05-06
Abstract: The invention relates to a buccal delivery system in the form of a slowly erodible lozenge which allows the delivery of an active substance to the buccal mucosa over an extended period of time, for example over 15 up to 90 minutes. The lozenge of the invention exhibits an almost zero order release of the active ingredient and has pleasant organoleptic properties.
Patent CA-2252077-A1 (CA)
Title: Steam cooling type gas turbine combustor
Inventor: INADA MITSURU
IPC: F23R3/00
Filed: 1998-02-12
Abstract: In using a high pressure steam as a cooling medium for a gas turbine combustor, combustor walls exposed to a high temperature combustion gas is constructed such that a sheet having a strength for high temperatures is joined by brazing to those surfaces of a wall plate, on which a plurality of flow passage grooves for a cooling steam are provided, to form steam flow passages, which communicate at one side thereof with a cooling steam supply manifold and at the other side thereof with a steam recovery manifold so that a steam supplied into the steam flow passages from the supply manifold cools the combustor wall surfaces and recovery manifold combustor wall surfaces. Accordingly, it is possible to form cooling passages of adequate strength and inhibit leakage of the steam outside a system.
Patent CA-2254187-A1 (CA)
Title: Pump impeller
Inventor: ARBEUS ULF
IPC: F04D29/18
Filed: 1998-11-17
Abstract: The invention concerns a pump impeller of a centrifugal- or a half axial type meant to pump liquids, mainly sewage water. According to the invention, the pump impeller comprises a hub (1) provided with one or several vanes (2) the leading edges (3) of which being strongly swept backwards. The size of the sweep angle (.alpha.) varies between 35 and 65 degrees at the connection with the hub (1) and 55 and 85 degrees at the periphery (5)
Patent CA-2254866-A1 (CA)
Title: Methods for creating transgenic animals
Inventor: BREMEL ROBERT D
IPC: C12N15/85
Filed: 1998-03-18
Abstract: The present invention provides improved methods and compositions for the generation of transgenic non-human animals. The present invention permits the introduction of exogenous nucleic acid sequences into the genome of unfertilized eggs (e.g., pre-maturation oocytes and pre-fertilization oocytes) by microinjection of infectious retrovirus into the perivitelline space of the egg. The methods of the present invention provide an increased efficiency of production of transgenic animals with a reduced rate of generating animals which are mosaic for the presence of the transgene.
Patent CA-2255000-A1 (CA)
Title: Method and apparatus for simulating a central queue for distributing calls in a distributed arrangement of automatic call distributors
Inventor: DURINOVIC-JOHRI SANJA
IPC: H04M3/51
Filed: 1998-03-16
Abstract: Calls may be distributed and load balancing maintained for a distributed automatic call distributor (ACD) system by simulating a central FIFO queue at the central routing point of the system. The simulated FIFO queue either requires that the number of calls in queue and the oldest call waiting time of calls at each automatic call distributor be periodically provided to the central routing point or event-based data be provided on each call answered in the system or not routed by the central routing point. Deviations from FIFO  order of service recorded at the simulated FIFO queue may signal the need for requeuing a call at another automatic call distributor. With additional information on agents available, the call removal rate may be estimated. Also, delay estimates may be updated based on comparing actual and estimated delays over time. The routing point may be updated with traffic data through, for example, a known telemarketing operations performance management system (TOPMS) or directly from the automatic call distributors via the toll telecommunications network.
Patent CA-2256306-A1 (CA)
Inventor: WANG CHANG YI
IPC: A61K39/395
Filed: 1997-06-03
Abstract: This invention is directed to monoclonal antibodies produced by using CD4expressing T lymphocytes, such as peripheral blood mononuclear T cells, thymocytes, splenocytes and leukemia or lymphoma derived T cell line cells such as HPB-ALL or SUP-T as the immunogen in accordance with the protocols and screening procedures described. The monoclonal antibodies of the present invention are characterized by their ability to neutralize in vitro and in vivo primary isolates of Human Immunodeficiency Virus (HIV) and related immunodeficiency viruses. The antibodies are directed against a host cell antigen complex comprising CD4 protein in association with domains from chemokine receptors and have broad neutralizing activities against primary isolates from all clades of HIV type 1 (HIV-1) and primary isolates of HIV type 2 (HIV-2) and Simian Immunodeficiency Virus (SIV). The present invention is also directed to a method of selecting and producing such antibodies, hybridomas which secrete such antibodies, pharmaceutical compositions comprising such antibodies and methods for pre- and post-exposure prevention of immunodeficiency virus infection in primates, including humans, by such antibodies whose primary targets are CD4-expressing lymphocytes.
Patent CA-2256465-A1 (CA)
Inventor: NOVICK RICHARD P
IPC: A61P31/04
Filed: 1997-05-22
Abstract: This invention provides peptides which inhibit agr transcription in S. aureus and thereby block the expression of virulence factors in S. aureus, pharmaceutical compositions comprising these peptides, as well as methods for treating or preventing an infection or disease caused by S. aureus using the peptides of the present invention.
Patent CA-2258752-A1 (CA)
Title: Naphthyridines which affect il-4 and g-csf
Inventor: FINE JAY S
IPC: A61K31/444
Filed: 1997-06-18
Abstract: Compounds of formula (I) or pharmaceutically acceptable salts thereof, wherein E, Q, T, U, V, L, Z, X, W, M, Y and Y' are as set forth herein, are described. These compounds are useful as agents in the treatment of allergy, inflammation, autoimmune diseases, B-cell lymphomas, tumors, and the after effects of bone marrow transplantation.
Patent CA-2259110-A1 (CA)
Inventor: REYNOUDT PHILIPPE
IPC: B21B1/22
Filed: 1999-01-12
Abstract: The strip passes through an upstream reduction rolling mill cage (2) and a downstream cage (3). The tightening force of the upstream cage (2) is regulated as a function of the tension between the two cages (2, 3), the response time for this regulation being chosen to be very much greater than the response time for the speed of regulation. The strip passes through an upstream reduction rolling mill cage (2) and a downstream cage (3). The speed of the upstream cage (2) is regulated with respect to the downstream cage (3) as a function of the rate of elongation caused by the upstream cage (2). The tightening force of the upstream cage (2) is regulated as a function of the tension between the two cages (2, 3), the response time for this regulation being chosen to be very much greater than the response time for the speed of regulation.
Patent CA-2259279-A1 (CA)
Inventor: SAVARD FRANCK
IPC: B62M9/16
Filed: 1997-07-02
Abstract: The invention discloses a tension and guiding device of a chain (118) in a drive system with a sprocket (a-h) set and a gear (A, B, C) set, with a reverse rear derailleur coupling and reverse circular motion of the chain. The invention is applicable to bicycles equipped with a selective system of gear/sprocket combinations.