baber/WOPTO huggingface dataset:
Patent CA-2280382-A1 (CA)
Title: Power supply operable with wide input range
Inventor: KLIPPEL TODD W
IPC: H02M5/257
Filed: 1999-08-16
Abstract: An arrangement provides a power supply for low voltage circuits that is connected to receive and store energy from a power electronics switch that is connected to an alternating current supply. The power supply is operative over a wide range of input and regardless of the operating status of the power electronics switch. For each half cycle of the alternating current which the power electronic switch is to be rendered conductive, the arrangement delays for a predetermined time duration the control of the power electronic switch at the zero crossing of the half cycle. During the predetermined time duration, the power supply charges an energy storage device with sufficient energy to supply the low voltage circuit until the next half cycle.
Patent CA-2280402-A1 (CA)
Title: Diaphragm pump
Inventor: KIM SEONG-CHUL
IPC: F04B43/00
Filed: 1999-08-13
Abstract: A diaphragm pump having a simple structure for effectively preventing pulsation of liquid is disclosed. The pump includes a body, a dividing wall for dividing the body into a first pump chamber and a second pump chamber, a partitioning plate in the second pump chamber defining a constant pressure chamber for retaining a volume of air under pressure, and the constant pressure chamber having an opening in a lower portion thereof. The pump further includes a diaphragm mounted in the first pump chamber. There is also provided an inlet in fluid communication with the first pump chamber, the inlet having a inlet valve, a discharge path connecting the first pump chamber to the second pump chamber, the discharge path having a discharge valve, and an outlet in fluid communication with the discharge path. A channel connects the discharge path to the opening in the constant pressure chamber, between the discharge valve and the outlet.
Patent CA-2280580-A1 (CA)
Inventor: YAMANAKA NAOAKI
IPC: H04L12/54
Filed: 1999-08-20
Abstract: An ATM switch includes a first stage, a second stage and a third stage each of which stages includes at least one basic switch, wherein the first stage, the second stage and the third stage are connected. The basic switch includes a part which refers to time information written in a header of an input cell and switches cells to an output port in an ascending order of the time information.      In addition, the ATM switch includes a cell distribution part in the basic switch of the first stage. The cell distribution part determines a routes of a cell to be transferred such that loads of routes within the ATM switch are balanced. The ATM switch further includes an adding part which adds arriving time information to an arriving cell as the time information.
Patent CA-2282669-A1 (CA)
Inventor: SWIST JASON
IPC: A63B69/36
Filed: 1999-09-02
Abstract: A golf club putter incorporating an indicator for reading the horizontal level of the putter head as it rests on the putting surface.
Patent CA-2283898-A1 (CA)
Title: Apparatus for conversion of energy from the vertical movement of seawater
Inventor: DOLEH ZAKARIA KHALIL
IPC: F03B13/14
Filed: 1998-03-11
Abstract: An apparatus for conversion of energy from the vertical movement of seawater comprising a hollow body (1) being applied substantially upright on the sea bottom (2), provided with at least one aperture (14) in the wall thereof, in such a way that water is free to move into and out of the hollow body, further comprising by a floating body (7) being moveable with respect to said hollow body in vertical direction caused by the movement of the seawater level and being in communication with the space in said hollow body in order to change the volume thereof, so that a fluid flow is introduced inside the hollow body, which is used to drive a propeller being connected to energy generating means directly or indirectly.
Patent CA-2284372-A1 (CA)
Title: Dual sidewall coupled orthomode transducer having orthogonal septa offset from the transducers axis
Inventor: KICH ROLF
IPC: H01P1/161
Filed: 1999-09-30
Abstract: A waveguide for guiding an arbitrarily polarized electrical field includes an elongated housing having a sidewall and a pair of feed ports located on the housing sidewall. One of the feed ports guides the horizontal component of the electrical field, while the other feed port guides the vertical component of the electrical field. A pair of planar septums are disposed within the housing and intersect along a line parallel to the axis of the housing.
Patent CA-2284481-A1 (CA)
Inventor: KAYNE PAUL S
IPC: C12Q1/6837
Filed: 1998-03-24
Abstract: A method of producing a subtraction library using a collection of defined sequences is described. The method involves providing a surface containing a collection consisting of known nucleic acid sequences, which is subsequently contacted with a library containing undefined sequences under appropriate hybridization conditions. Any non-hybridized DNA is recovered and sequenced.  The resulting sequenced, non-hybridizing DNA forms a subtraction library which contains sequences which were present in the library, and which differ from the sequences of the collection. Also described is a subtraction library prepared according to the method of the invention. Methods are also provided for making and using subtracted probes.
Patent CA-2284709-A1 (CA)
Title: Method for making parts from particulate ferrous material
Inventor: LASHMORE DAVID S
IPC: C22C33/02
Filed: 1998-03-23
Abstract: A method is provided for making a part from particulates of ferrous material. A layer of from greater than about 0 wt.% to about 50 wt.% of ductile metal or alloy is plated onto each of said particulates. The particulates are consolidated to form a part, and the part is heated at a temperature of from about 350 ~C to about 800 ~C for a time period of from about 30 minutes to about 120 minutes. A method for making parts having complex geometries by powder metallurgy is also provided. A quantity of a particulate of a first matrial is provided. A second material is coated onto the first material by plating a layer of from about 2 wt.% to about 50 wt.% of a second material onto the surface of each particulate. The coated particulates are consolidated to form a part and the part is heat treated.
Patent CA-2288575-A1 (CA)
Inventor: BLOMQUIST PETER J
IPC: B28D1/22
Filed: 1999-11-08
Abstract: The present invention is an apparatus for splitting blocks comprising a frame, a vertically movable lower blade carrier, an upper blade, and a pressure generating mechanism. Two fixed yokes are positioned at opposing ends of the lower blade carrier and carry the lower blade carrier along two threaded rods.  The two threaded rods are linked so that their rotation is synchronized, The pressure mechanism causes the upper blade to generate pressure on the block between the upper and lower blades.
Patent CA-2291281-A1 (CA)
Title: Clothes dryer hanging feature
Inventor: LAFRENZ MICHAEL D
IPC: D06F58/04
Filed: 1999-11-30
Abstract: A hanging feature is provided for a clothes dryer.      The hanging feature is included on the door, or on the cabinet adjacent the door opening so that shoes or other objects can be hung from the hanging feature and suspended in a position exposed to the hot air within the rotating drum while at the same time being held free from rotation with the rotating drum.
Patent CA-2296216-A1 (CA)
Title: Elimination of spurious signals in a double conversion tuner using a dynamic intermediate frequency and a preselected crystal reference frequency
Inventor: ARREDONDO DAVID CORONEL
IPC: H03J1/00
Filed: 2000-01-14
Abstract: A double conversion tuner (DCT) free of spurious signals generated by the local oscillator frequencies and the crystal reference frequency is described herein. These spurious signals are generated by the first and/or second oscillator signals as well as by their harmonic frequencies. Spurious signals are also generated when the crystal reference frequency is not properly selected. In the past, complex mechanical designs had to be used to isolate circuit blocks to reduce these spurious signals. By using a dynamic first intermediate frequency and/or selecting the value of the crystal reference frequency, these spurious signals can be reduced or eliminated.
Patent CA-2298423-A1 (CA)
Title: Injection molding resin
Inventor: DOBBIN CHRISTOPHER JOHN BROOKE
IPC: C08F210/16
Filed: 2000-02-10
Abstract: Injection molded plastic parts (such as containers for ice cream or margarine, lids for the containers and crates) are made from a polyethylene resin having a controlled but narrow molecular weight distribution and a uniform comonomer distribution. The combination of narrow molecular weight distribution and uniform comonomer distribution allows the parts to be more easily molded whilst still maintaining a surprisingly high level of physical properties in the finished parts. The polyethylene resin is prepared in a dual reactor polymerization process.
Patent CA-2300093-A1 (CA)
Title: Delayed progression to aids by a missense allele of the ccr2 gene
Inventor: DEAN MICHAEL
IPC: C12Q1/68
Filed: 1998-08-10
Abstract: The present invention relates to a CCR2 mutant, designated "CCR2-64I". "CCR264I" is a CCR2 gene sequence which has a nucleotide substitution (a G to A substitution) at position 190 (counting from the ATG start codon) such that the valine found position 64 in the wild-type CCR2 amino acid sequence is replaced by an isoleucine. CCR2 is a C-C chemokine receptor and has been implicated as a co-receptor for HIV-1. It has been discovered that the presence of the CCR2-64I allele correlates with a postponement of AIDS outcomes, and that infected individuals who have the CCR2-64I allele are at reduced risk for progression from HIV-1 infection to the development of clinical AIDS and death. Isolated nucleic acid molecule encoding CCR2-64I and the establishment of cell lines that express CCR2-64I provides valuable tools for continuing research on HIV infection. Diagnostic methods for analysis of the allelic frequency of CCR2 wild-type and 64I genes are provided. In addition, antibodies which bind to CCR2-64I, CCR2-64I variants, and CCR2 binding agents represent potential anti-HIV agents.
Patent CA-2302713-A1 (CA)
Title: Backflow valve
Inventor: COSCARELLA GABE
IPC: F16K15/03
Filed: 2000-03-24
Abstract: A back flow valve which includes a closure gate pivotally mounted along a substantially vertical pivot axis to one of the opposed sides of the valve body. A closure gate engaging profile positioned in a bottom of the valve body locks the closure gate in the open position. The closure gate is biased into the closed position. The closure gate moves to the closed position upon floating free of the closure gate engaging profile.
Patent CA-2303823-A1 (CA)
Inventor: PELKA DAVID G
IPC: G02B5/02
Filed: 1997-09-19
Abstract: Radiant electromagnetic energy transmitting apparatus, comprising an elongated body (100) consisting of electromagnetic energy transmitting material, the energy injected into the body to travel therein and to be trapped during the travel by total internal reflecting off walls (101, 102) defined by the body (100), and there being at least one site (107) within the body (100) having variegated surface relief acting to scatter incident radiant energy for ejection from the body as rays defining a selected solid angle.
Patent CA-2304957-A1 (CA)
Title: Single mould alignment
Inventor: MULLER ACHIM
IPC: B29C35/08
Filed: 1998-10-19
Abstract: The invention tackles the problem of improving the production process for contact lenses further, so that the production costs for contact lenses can be reduced further and the production capacities can be increased. To this end, provision is made for the two mould halves (2, 3), which together form the mould for producing a contact lens, to be fixed to each other and/or detachably connected to each other by means of individual half-mould guide. In conjunction with a cyclic production process, a high degree of automation can be achieved in this way.
Patent CA-2305694-A1 (CA)
Inventor: STANLEY JON OVITT
IPC: D02J1/22
Filed: 1998-10-09
Abstract: An apparatus and method for processing a synthetic yarn includes at least one sensor for generating a signal representative of the actual velocity of the yarn at a point intermediate an upstream and the downstream rolls. The temperature of the upstream roll in accordance with the variation between the actual velocity of the yarn at the measurement point and a predetermined reference velocity. A second sensor may be provided to generate a signal representative of the actual velocity of the yarn at a second point intermediate the rolls. The controller may regulate the temperature of the upstream roll in accordance with the variation between the actual velocity at each measurement point and a predetermined reference velocity for that measurement point. Alternatively, the controller may regulate the temperature of the upstream roll in accordance with a relationship (e.g., the ratio) between the actual velocities as compared to a predetermined reference relationship (as, the ratio) representative of the relationship of the velocities of the upstream and downstream rolls, and the variation between the actual and reference velocities at at least one of the measurement points.
Patent CA-2305709-A1 (CA)
Title: Chlamydia protein, gene sequence and uses thereof
Inventor: PACE JOHN L
IPC: A61P31/04
Filed: 1998-10-01
Abstract: A high molecular weight ("HMW") protein of Chlamydia, the amino acid sequence thereof, and antibodies that specifically bind the HMW protein are disclosed as well as the nucleic acid sequence encoding the same. Also disclosed are prophylactic and therapeutic compositions, comprising the HMW protein, a fragment thereof, or an antibody that specifically binds the HMW protein or a portion thereof, or the nucleotide sequence encoding the HMW protein or a fragment thereof, including vaccines.
Patent CA-2306168-A1 (CA)
Title: Method and device for extracting rubber from gaseous phase polymerization
Inventor: SCHNEIDER JURGEN
IPC: B01J8/00
Filed: 1998-10-01
Abstract: The invention relates to a device and method for continuous extraction of pre-screened rubber particles from a gas-phase polymerization reactor. The device comprises a sifter and a downstream spiral transfer canal.
Patent CA-2306370-A1 (CA)
Title: Fabric venetian blind and method of fabrication
Inventor: COREY JOHN A
IPC: E06B9/34
Filed: 1998-10-07
Abstract: A method of making a fabric Venetian blind comprises helical winding of a narrow, elongated strip (40), which, when properly overlapped and bonded along longitudinal glue lines (42, 44), will form the vanes and front and rear facings of the blind. The strips (40) may be formed of a single, uniform material, or of adjacent, longitudinally extending portions of relatively opaque (34) and relatively translucent fabric (30, 32). An alternative embodiment uses the same winding technique to similarly form a structure of only translucent fabric, but with pockets (110) for subsequent insertion of opaque vanes (114).  The disclosed method and structure may also be used to form products for other applications.
Patent CA-2306420-A1 (CA)
Inventor: BOGER DALE L
IPC: C07D209/42
Filed: 1998-10-14
Abstract: L'invention porte sur la synthèse d'une série d'analogues bioactifs du (+)-CC-1065 (1) et sur les duocarmycines 2 et 3. Les analogues bioactifs comprennent soit l'iso-CI ou l'iso-CBI (6 et 7) en tant que sous-unités d'alkylation de l'ADN. Différentes sous-unités de fixation de l'ADN sont conjuguées aux sous-unités d'alkylation de l'ADN. Les analogues bioactifs conservent leur sélectivité vis à vis de l'ADN et présentent une réactivité améliorée.
Patent CA-2306729-A1 (CA)
Title: Integrated inventory management system
Inventor: FOX BILLY SHANE
IPC: G06Q30/06
Filed: 1999-08-26
Abstract: A method is provided for inventory management which includes an initial step of receiving a customer request for an inventory item and then generating a table or menu of one or more inventory items that most closely correspond to the customer request using a price forecasting system (14). Based on negotiations concerning price, timing and other typical concerns, an item is selected from the table and a price quotation associated with the selected inventory item is generated using the price forecasting system, which price quotation has been predetermined by a yield management system (22) using a pricing strategy. The customer information associated with the customer request is input into a traffic billing system (20). Information needed for price recalculation associated with the customer request is input into the yield management system. The yield management system recalculates pricing data with in a manner consistent with a pricing strategy implemented by the yield management system, so that the price changes caused by a reduction in available inventory due to the customer request are taken into account, and the pricing data accessed by the price forecasting system when a price quotation is generated is updated prior to repeating the process for a subsequent customer request.
Patent CA-2308729-A1 (CA)
Inventor: GALOMB DAVID E
IPC: B65D33/16
Filed: 2000-05-17
Abstract: A snap closure for a flexible, gusseted package and a flexible gusseted packing including the closure. The package includes a mouth portion arranged to be opened to provide access to the contents of the package. The package is formed of a flexible material and includes a front panel, a rear panel, and a pair of opposed side gussets. The panels and gussets each include a top portion, which between them define the package's mouth. The package's mouth is initially sealed but arranged to be opened, e.g., peeled apart. The snap closure enables the resealing of the mouth of the package and is made up of a pair of elongated elements, one of which includes a tongue extending along the length of it. The other element includes an undercut groove extending along the length of it. The elements are arranged to be pressed together, whereupon the tongue of the one element enters the groove of the other element with portions of the panels and side gussets tightly interposed therebetween. The closure elements may be longitudinally rigid or may be segmented to flex in the longitudinal direction to facilitate opening. Moreover, the closure elements may be a part of the package or separate components for use therewith. When part of the package the closure elements may be secured to the panels via an adhesive covering their entire inner surface. In any case when the closure is utilized it recloses the mouth of the package to preclude or minimize the ingress of air into the package.
Patent CA-2308979-A1 (CA)
Title: Method and apparatus for creating and sending structured voicemail messages
Inventor: MATAGA PETER ANDREW
IPC: H04M3/533
Filed: 2000-05-16
Abstract: A sender (101) creates a voicemail message that includes a plurality of messaging elements that include embedded instructions that define a structure of the message. Other messaging elements may include textual fragments, audio fragments that refer to audio data files that are associated with the message, and/or references to textual fragments and/or audio fragments that are stored at specified locations. The instructions may define a hierarchical menu structure which, when the message is presented to the recipient (106) by a messaging system (104), offers the recipient different navigational choices from which the recipient may select and thus effect the information content of what is presented. The structured message is sent by the sender to the recipient at an address on a messaging system that stores the message and is capable of interpreting and assembling the messaging elements in accordance with the embedded instruction and playing-out the message to the recipient when the recipient accesses the system and retrieves the message from storage. The structured message may also include links to a specific destination, to which the messaging system establishes a connection if the link is selected by the recipient during play-out of the message. Further, the messaging system can gather information from the recipient during play-out and forward that information to a specified destination, which may respond with another structured message. In the described embodiment, a phone markup language is used to define the structure and the inherent embedded instructions associated with the structure of the message.
Patent CA-2310852-A1 (CA)
Inventor: DIZEREGA GERE S
IPC: A61K38/08
Filed: 1998-11-24
Abstract: La présente invention répond à un besoin, dans l'état actuel de la technique, de procédés favorisant la prolifération et la différentiation de cellules souches hématopoïétiques et mésenchymateuses, ou de cellules spécifiques à une lignée, par une croissance en présence d'angiotensinogène, d'angiotensine I (AI), d'analogues d'angiotensine I, de fragments d'angiotensine et de leurs analogues, d'angiotensine II (AII), d'analogues d'angiotensine II, de fragments d'angiotensine II et de leurs analogues, et d'agonistes des récepteurs AT¿2? de type 2 de l'angiotensine II.
Patent CA-2310868-A1 (CA)
Title: Method for applying polymeric diphenylmethane diisocyanate to cellulose/gypsum based substrate
Inventor: PORTER MICHAEL J
IPC: B05D1/28
Filed: 2000-06-06
Abstract: The disclosed invention consists of a means for conveying a gypsum or gypsum/cellulose fiber board to a rotary cylinder brush station where pMDI resin is delivered onto the rotary cylinder brush just as the board passes under the brush. A resin distribution system is used to coat the rotary cylinder brush applicator with pMDI. Optionally, a second rotary cylinder brush station is included, if desired, to smooth out and spread the pMDI resin over the surface of the gypsum board substrate to achieve complete coverage.
Patent CA-2311079-A1 (CA)
Title: Procede d'enseignement de langues etrangeres et procede de constitution d'un repertoire lexical
Inventor: ZOTOVA TATIYANA VLADIMIROVNA
IPC: G09B19/08
Filed: 1999-07-19
Abstract: Cette invention concerne un procédé d'enseignement de langues étrangères qui consiste à montrer aux étudiants des systèmes démonstratifs en couleur dans lesquels l'ensemble des mots de base apparaît en noir ou en bleu, les mots distincts ou leurs parties apparaissent en vert tandis que les mots nouveaux apparaissent en rouge. Un assistant vérifie les travaux que les étudiants font eux-mêmes, et indique en rouge l'emplacement approximatif d'une faute que l'étudiant corrige lui-même également en rouge. Les étudiants reproduisent également en couleur les informations qui sont présentées dans les systèmes démonstratifs. Lors d'un examen oral, tous les étudiants interrogés répondent simultanément en effectuant des gestes prédéterminés, une mimique ou des mouvements du corps et en ayant au préalable fermé les yeux. Afin de constituer un répertoire lexical, un étudiant prépare des ensembles de dictionnaires orthographiques courts que les étudiants apprennent hors de leurs cours. Pendant les cours, les étudiants écrivent les mots de ces dictionnaires en les épelant à haute voix. Il est possible de faire appel à un enregistrement audio. Hors des cours, les étudiants apprennent également des mots issus de dictionnaires orthographiques, de prononciation, pratiques ou philosophiques courts.