baber/WOPTO huggingface dataset:
Patent CA-2338579-A1 (CA)
Title: Reverse circulation drilling system with bit locked underreamer arms
Inventor: HOLTE ARDIS L
IPC: E21B10/36
Filed: 1999-07-23
Abstract: An underreamer drill bit assembly including a pilot bit (82) and extendable underreamer arms (88) operatively connected to the pilot bit (82). The underreaming arms (88) have an extended position for underreaming, and a retracted position in which the overall diameter of the underreamer drill bit assembly is less than the inside diameter of the well casing, permitting the entire bit assembly to be withdrawn through the well casing. In another aspect of the invention, the bit assembly is operatively connected to a dual wall pipe assembly (12). A supply of compressed air is conducted through the annulus (24) of the dual wall pipe assembly (12) to a down hole pneumatic hammer (13). Exhaust air from the down hole hammer is directed to the bit assembly for continuous removal of drilling debris through a central evacuation tube (43) of the dual wall pipe assembly. In another aspect of the invention, a pressurized, incompressible fluid is injected into the annulus between the well casing and the downhole pneumatic hammer.
Patent CA-2339113-A1 (CA)
Inventor: DUTT BIRENDRA
IPC: H04J13/00
Filed: 1999-07-29
Abstract: A multi-user optical fiber communications system uses spread spectrum code division multiple access techniques to achieve better bandwidth utilization.  Each channel of the system is provided with light source that is temporally and spectrally modulated by an encoder. Modulation is accomplished by first passing the data through a pulse modifier to obtain a stream of shortened pulses with a reduced duty cycle. The modulated light is coupled to a fiber and data are recovered by the decoder. The source includes a superluminescen t fiber source that is split multiple times and amplified in a hierarchical manner to produce a plurality of like sources. The like sources are decorrelated by adding delays to the different sources. Each of the encoders  includes an encoding mask having a first code that encodes the optical signa l. Light, spatially encoded by the mask and temporally modulated with data, is transmitted over a fiber link with the signals of other users and received b y a decoder. Within each decoder, a polarization insensitive separator splits the received light into two equal power components which are provided to two  decoding masks used to decode the signal. One of the masks has a second code  identical to the first code and the other mask has a third code complementar y to the first code.The output light beams filtered by the masks are differentially detected to generate an output signal, which is further processed for data recovery. The electrical signal is low pass filtered and electrically square law detected. The first codes are selected from a set of  unipolar codes derived from a set of balanced bipolar orthogonal codes. The codes may be either binary or analog.
Patent CA-2340248-A1 (CA)
Inventor: CROCKER PETER JOHN
IPC: A61M5/32
Filed: 1999-08-13
Abstract: An apparatus for delivering a substance to a surface, such as the skin of a human being, animal or other organic matter has a needle. Also provided is means for supplying the substance to the tip of the needle in use, and driving means for driving the needle, in use, at a velocity in the range of 1 metre per second to 100 metres per second in order to penetrate the surface and deliver the substance thereto.
Patent CA-2340257-A1 (CA)
Inventor: MCMICHAEL JOHN
IPC: A61P3/00
Filed: 1998-11-13
Abstract: La présente invention concerne des procédés de traitements de symptômes associés à des états maladifs tels que la cardiomyopathie, la maladie de Parkinson et des malades dégénératives du foie, y compris la cirrhose. Ces procédés consistent à administrer une quantité efficace d'une composition contenant un bêta-amyloïde, de la streptolysine O et une hormone de croissance.
Patent CA-2340623-A1 (CA)
Title: Method for identifying and representing interindividual differences of dna sequences
Inventor: HOEHE MARGRET
IPC: C12Q1/6876
Filed: 1999-05-03
Abstract: The invention relates to a method for identifying and representing interindividual differences of DNA sequences. The invention is characterized  in that; the genomic DNA of the individuals to be examined are isolated; segments of the genes to be compared, genomic regions, and genomes are defined; these segments are isolated in a targeted manner by means of PCR while using highly specific oligonucleotides and are produced in a sufficien t number of copies; a simultaneous sequencing of all obtained gene segments is  carried out, said gene segments now being available as PCR products; afterwards, the mixture of termination reactions which is produced thereby a nd which contains the individual sequences of all gene segments is electrophoretically separated on a sequencing gel; the mixture is transferre d onto a membrane by means of direct transfer electrophoresis; afterwards, the  individual sequences of a determined gene segment from the original mixture are made visible by hybridizing the membrane with a marked, highly specific oligonucleotide; this process is repeated unit all gene segments from the common pool are detected; afterwards, interindividual differences of DNA sequences are detected by image analysis, and a genetic profile model is established and evaluated by mathematical processing.
Patent CA-2342277-A1 (CA)
Inventor: HIGUCHI RUSSELL GENE
IPC: C12Q1/68
Filed: 2001-04-12
Abstract: The present invention relates to improved reverse transcription methods using a modified thermostable DNA polymerases, particularly in a magnesium ion buffer. These methods are particularly useful in combined reverse-transcription/amplification reactions.
Patent CA-2344356-A1 (CA)
Inventor: DIMANSTEIN ISAAC
IPC: H02P25/02
Filed: 1999-09-16
Abstract: An electrical driver (10) for a linear electrical motor which drives a linear refrigerant compressor (11) that has a resonant frequency includes a sensor (22) for measuring the magnitude and polarity of the back EMF of the electrical motor at the beginning and/or end of the stroke of the compressor (11). A control circuit (12) analyses the measured back EMF to determine whether the driver frequency is higher or lower than the resonant frequency of the compressor (11) and then adjusts the frequency of the driver (10) to or closer to the resonant frequency of the compressor (11).
Patent CA-2347358-A1 (CA)
Inventor: HAN YONGHO
IPC: A41G5/00
Filed: 2001-02-06
Abstract: An adhesive device is disclosed for attaching a false eyelash to an eyelid when a prior adhesive device has lost its adhesivity. The adhesive device is detachable from the false eyelash and the eyelid. The adhesive device comprises an elongated core and a pressure sensitive adhesive coating surrounding the core. The adhesive coating is for attaching the core along the false eyelash and for also allowing the false eyelash to be attached to the eyelid. The core comprises a plurality of synthetic fibers laid side by side and parallel with respect to their longitudinal axes so as to assure that the plurality of synthetic fibers lay right on the eyelid. Each synthetic fiber is resistant to absorption of the adhesive coating so as to remain soft and pliable.
Patent CA-2347768-A1 (CA)
Title: Synthesis of methylthiophenyl hydroxyketones
Inventor: DAVIES IAN W
IPC: C07C323/22
Filed: 1999-10-25
Abstract: This invention encompasses a novel process for synthesizing compounds represented by formula (A). These compounds are intermediates useful in the preparation of certain agents that are selective COX-2 inhibitors.
Patent CA-2347803-A1 (CA)
Title: Microbial transformation product
Inventor: NIELSEN-KAHN JENNIFER
IPC: A61P31/10
Filed: 1999-10-22
Abstract: Biotransformation product of a fermentation with Actinomyces spp., (Merck Culture Collection MA7235) ATCC No. 202103 is an antifungal agent. This compound may be useful in the treatment of diseases caused by fungal pathogens such as Candida albicans.
Patent CA-2351092-A1 (CA)
Inventor: IHARA YUSHI
IPC: H04N1/00
Filed: 2000-09-11
Abstract: L'invention concerne une commande de saisie conforme aux protocoles AV/C de l'IEEE 1394. Les paramètres <= data size >= (quantité de données à transmettre), <= image size x >= (nombre de pixels dansle sens X et <= image size y >= (nombre de pixels dans le sens y) restent à zéro. Le type d'image (image format specifier) est <= Don't Care >=. L'imprimante ayant reçu ce type de commande de saisiesaute l'impression d'image en réservant la zone d'impression et imprime l'image suivante.
Patent CA-2351249-A1 (CA)
Title: Document update method
Inventor: CHEW MICHAEL B
IPC: G06F9/445
Filed: 2001-06-22
Abstract: This invention provides a method for updating a document module for use with an application program on a remote computer from a host computer. The method includes the steps of creating a document module and storing the document module at a resource center, associating the document module with a time-dependent unique identifier. The method includes the further steps of comparing the time dependent unique identifier associated with the document module at the remote device to the identifier at the resource center, and transmitting the document module at the resource center when the version on the remote computer is superseded.
Patent CA-2352819-A1 (CA)
Inventor: PICCONE FRANCESCO
IPC: E04B2/86
Filed: 2001-07-10
Abstract: A connecting member for use in a stay-in-place modular concrete formwork assembly that includes at least one brace and that is suitably perforated to permit the placement of reinforcement rods at or near the optimal placement position for a given structure. The connecting member includes terminal connectors at either longitudinal edge adapted for mating engagement with at least one wall element of a modular formwork assembly and at least one elongate brace connected to and depending from its central portion (from a point of connection offset from the terminal connectors) for engagement with the supplementary engagement means present on the inner surface of a wall element.      The central portion and brace of the connecting member are perforated within a zone of perforation that extends through the point of connection of the brace and the flat central portion to permit the cross-flow of concrete and the cross-placement of reinforcement rods.
Patent CA-2354485-A1 (CA)
Title: Paving screed for a paver
Inventor: ROWER HELMUT
IPC: E01C19/22
Filed: 2001-07-27
Abstract: The invention relates to a paving screed for a payer, with a basic screed and with at least one lateral extendable screed part which is connected to the basic screed via hydraulically actuable tensioners and the height of which can be adjusted by means of a height setting device which comprises vertical spindles which are coupled to the extendable screed part and are held on the basic screed rotatably relative to the latter, the spindles being adjustable via a common drive motor, it being possible, as a result of the actuation of the drive motor, to trigger a release of the hydraulically actuable tensioners for the duration of actuation and the extendable screed part being additionally connected to the basic screed via spring-biased screws.
Patent CA-2356271-A1 (CA)
Inventor: SCHULZ WALDEAN A
IPC: G01B11/03
Filed: 1999-12-22
Abstract: This invention is a system that tracks the 3-dimensional position and orientation of one or more bodies (20) in a volume by a light based as well as at least one non-light based mensuration sub-system. This overcomes the limitation of light based mensuration systems to the necessity of the bodies (20) to be in constant line-of-sight of its light based position sensors (26).  The invention possesses most of the accuracy and stability of its light based position measurement sub-system (24, 26, 72), but can also work without direct line of sight either for short periods of time or within certain parts of the volume. It does so by incorporating other sensors (31, 34), such as inertial or magnetic, which are frequently recalibrated against the light based sub-system (24, 26, 72) while the bodies (20) are visible by the light based sub-system (24, 26, 72).
Patent CA-2356423-A1 (CA)
Title: Buse a refrigerant liquide pour machine outil
Inventor: NAKAI YOSHIKAZU
IPC: B23Q11/10
Filed: 1998-12-28
Abstract: La présente invention concerne un buse (3) à réfrigérant liquide destiné à une machine outil, comprenant a) une paroi périphérique interne (15), b) un épaulement interne (23) formé sur la paroi périphérique interne (15) destiné à former un chemin d'écoulement latéral interne, c) une structure cadre supérieure comprenant une surface plafond permettant au réfrigérant liquide sortant du chemin d'écoulement latéral interne par le haut, de s'écouler radialement sur une paroi périphérique extérieure plane (17), et d'incurver la course du liquide la dirigeant vers le bas, cette structure formant conjointement avec la surface de paroi extérieur de l'épaulement (23) un chemin d'écoulement latéral extérieur. La buse de la présente invention comprend aussi une rainure (27) pratiquée sur au moins une partie de la surface de paroi perturbant l'écoulement, et d) une structure cadre inférieure (19) formant un lit guide d'écoulement qui, via au moins une étape palier située sous l'épaulement (23), permet un écoulement centripète du réfrigérant liquide ayant atteint l'extrémité inférieure de la paroi périphérique extérieure (17), permettant à cet endroit de former un voile de réfrigérant liquide semblable à une chute d'eau, de forme conique inversée ou tubulaire, entourant une extrémité de découpe, par le fait que le réfrigérant liquide s'écoule vers le bas en empruntant l'extrémité périphérique interne du lit guide d'écoulement comme un haut circulaire de chute d'eau (28).
Patent CA-2357092-A1 (CA)
Title: Integrating power-controlled rate-controlled transmission on a same frequency carrier
Inventor: SUNAY MEHMET OGUZ
IPC: H04B7/005
Filed: 2001-08-30
Abstract: Disclosed is a method of integrating voice and data services onto a same frequency channel using available transmit power information to determine data rates, wherein the available transmit power information indicates an amount of transmit power available for future data transmissions over one or more data channels. In a "distributed"  embodiment, a transmitter or base station transmits. via a forward link, an available power message to a receiver or mobile-telephone indicating an amount of available transmit power at some future time t+z. The mobile-telephone performs signal-to-interference measurements corresponding to the received forward link and received interference, and uses such signal-to-interference measurements and the available power message to determine a data rate that can be supported by the mobile-telephone. Preferably, the determined data rate corresponds to a maximum data rate at which a minimum level of quality of service can be achieved at the mobile-telephone. In a "centralized" embodiment, the mobile-telephone transmits the signal-to-interference measurements to the base station, and the base station determines the data rate based on the available transmit power at future time t+z.
Patent CA-2361714-A1 (CA)
Inventor: LIN MINFA
IPC: C22C38/42
Filed: 1999-06-03
Abstract: A method of making a weathering grade steel plate includes the steps of casting, hot rolling, and accelerated cooling using a modified weathering grade alloy composition. The composition employs effective levels of manganese, carbon, niobium, molybdenum, nitrogen, and titanium. After the casting, the slab or ingot is heated and rough rolled to an intermediate gauge plate. The intermediate gauge plate is controlled finish temperature rolled and subjected to accelerated cooling. With the controlled alloy chemistry, rolling and cooling, the final gauge plate exhibits continuous yielding and can be used for applications requiring a 70 KSI minimum yield strengh, a 90-110 KSI tensile strengh, and a Charpy V-notch toughness greater than 35 ft-lbs. at -10~F in plates up to 4.0" thick.
Patent CA-2362313-A1 (CA)
Title: Floor game for team building
Inventor: YOUNG JASON P
IPC: A63B67/00
Filed: 2000-04-11
Abstract: This invention is a floor game including tiles (4) which are laid on a playing surface (E) forming a playing area (10), and polarized glasses (12). Each tile is covered by a polarized film (32). A path (40) across the playing area is revealable by utilizing the polarized glasses available to a game facilitator.  The players see a design on the playing area. A path across the playing area is invisible to players not wearing the polarized glasses. Each player traverses the path with assistance of the game facilitator, and by observing steps taken by the previous players. The object of the game is for players to discover, and traverse the path across the playing area from end to end through a team effort.
Patent CA-2362965-A1 (CA)
Inventor: QUAN CLIFTON
IPC: H01P5/08
Filed: 2001-01-12
Abstract: An RF interconnect between a rectangular coaxial transmission line including a coaxial center conductor (122) and a dielectric structure (124) with a rectilinear cross-sectional configuration fitted around the coaxial center conductor and an RF  circuit (130) separated from the airline circuit by a separation distance. The RF  interconnect includes a compressible conductor structure (152) having an uncompressed length exceeding the separation distance, and a dielectric sleeve structure (154) surrounding at least a portion of the uncompressed length of the compressible conductor structure. The RF interconnect structure is disposed between the rectangular coaxial transmission line and the RF circuit such that the compressible conductor is placed under compression between the substrate and the RF circuit. Examples of the RF circuit include a vertical coaxial transmission line or a grounded coplanar waveguide circuit disposed in parallel with the center conductor of the rectangular coaxial transmission line.
Patent CA-2364050-A1 (CA)
Inventor: VANDE BERG GARY
IPC: B29C45/03
Filed: 2001-11-30
Abstract: The invention provides a method of co-injection molding. The method includes mixing a plastic inner material and an endothermic-blowing agent to form a core mixture. A plastic outer material is injected from a first injection unit into a co-injection manifold to create a flow of outer material therethrough. The core mixture is injected from a second injection unit into the co-injection manifold to create a flow of core mixture therethrough. The flow of the outer material and the flow of the core mixture are then controlled through the co injection manifold and into a mold cavity. The core mixture expands as heat is provided for the endothermic-blowing agent to absorb.
Patent CA-2364977-A1 (CA)
Title: Resin composition for capstock
Inventor: TAJIMA KAZUHISA
IPC: C08J5/00
Filed: 2001-12-14
Abstract: An acrylic resin composition suitable for the preparation of capstock for siding panels and having excellent impact resistance, weatherability and processability and a low gloss, which comprises 30 to 100 % by weight of an impact modifier having a multilayer structure and 0 to 70 % by weight of a methyl methacrylate homopolymer or copolymer and whose MFI (melt flow index measured according to ASTM D-1238 at 230°C and a load of 3.8 kg) is not more than 0.35 g/ 10 minutes.
Patent CA-2365351-A1 (CA)
Title: Plateau en matiere moulee, notamment pour fruits
Inventor: MOSTINI SERGE
IPC: B65D1/34
Filed: 2001-12-27
Abstract: Plateau en matière moulée notamment pour fruits, comprenant des al- véoles pour la réception de fruits, caractérisé en ce que les alvéoles sont dispo- sées en rangées successives d'alvéoles hautes (1) et basses (2), les alvéole s hautes (1) et les alvéoles basses (2) étant en outre disposées selon une configu- ration en quinconce.
Patent CA-2366001-A1 (CA)
Title: Hydrocratic generator
Inventor: FINLEY WARREN
IPC: F03G7/00
Filed: 2000-02-01
Abstract: A hydraulic power generation system is provided for generating power using a pseudo-osmosis process which efficiently exploits the osmotic energy potential between two bodies of water having different salinity concentrations. The method and apparatus of the present invention does not require the use of a semi-permeable membrane or other specially formulated material, nor does it require heating or cooling of the fresh water or salt water solution. Moreover, the device may be used to recover energy from a wide variety of fresh water sources, including treated or untreated river run-off, treated waste-water run-off or effluent, storm-drain run-off, partly contaminated fresh water run-off, and a wide variety of other fresh water sources. The device is well suited to power production in a wide variety of geographic locations and under a wide variety of conditions. The invention has particular advantage for use in remote regions where electrical power generation by conventional means may be commercially infeasible or impractical.
Patent CA-2369592-A1 (CA)
Title: Hydraulic powered screed
Inventor: PICCOLI MARIO
IPC: E04F21/24
Filed: 2002-01-29
Abstract: This invention relates to a vibrating screed for compacting and smoothing flowable cementitious materials.      More specifically, this invention relates to a self-contained hydraulic powered concrete screed. This hydraulic screed consists of a relatively lightweight screed unit having a hydraulic powered vibrator and a portable hydraulic power pack that is mounted on a back pack wearable by the operator. The handle of the screed unit is isolated from the hydraulic vibrator and screed blade by three rubber isolation mounts. The working height of the handle can be adjusted by a turnbuckle assembly at one of the rubber mounts, causing the handle to pivot about the other two the rubber mounts. The hydraulic power pack comprises an internal combustion engine driving a hydraulic pump that provides pressurized hydraulic fluid to the vibrator unit via flexible hoses.
Patent CA-2371163-A1 (CA)
Title: Procede d'identification d'etats preneoplasiques et neoplasiques chez des mammiferes
Inventor: BARDEN JULIAN
IPC: G01N33/574
Filed: 2000-04-26
Abstract: La présente invention concerne des procédés d'identification d'états prénéoplasiques et/ou néoplasiques chez des mammifères et, en particulier, un procédé d'identification de cellules prénéoplasiques et néoplasiques dans les tissus et les fluides corporels, sur la base d'expressions différentielles de récepteurs purinergiques dans ces cellules.
Patent CA-2371563-A1 (CA)
Inventor: SILVERBROOK KIA
IPC: G06F3/14
Filed: 2000-05-24
Abstract: A mailing system includes a computer system having a sender terminal and a receiver terminal and adapted to transmit a mail item from the sender terminal to the receiver terminal. A printer device in the receiver terminal is adapted to print a mail item from the sender terminal in a document including coded data thereon, the coded data including an indication of the identity of the mail item and at least one reference point on the document. A sensing device is arranged to communicate to the computer system indicating data from the sensing device, the indicating data including information regarding the identity of the mail item and at least one action of the sensing device in relation to the document generated by the sensing device using at least some of the coded data, whereby the computer system can generate a second mail item using the indicating data from the sensing device.