baber/WOPTO huggingface dataset:
Patent CA-2187972-C (CA)
Inventor: BAILEY THOMAS F
IPC: E21B7/08
Filed: 1996-10-16
Granted: 2005-04-26
Abstract: A two trip sidetrack casing milling apparatus for elongating and enlarging a previously formed window in a cased borehole in preparation for a subsequent sidetracking drilling operation is disclosed. The apparatus consists of three mills on a shaft, a first window mill is secured to an end of a shaft. The first window mill forms a diameter larger than a diameter of a subsequent sidetracking drill bit that is passed through the window. A second pilot mill is secured to the shaft and strategically positioned above the first window mill. The second pilot mill forms a diameter that is less than the diameter of the first window mill. A third watermelon mill is secured to the shaft and strategically positioned above the second pilot mill. The third watermelon mill forms a diameter that is at least the same diameter as the first window mill.  The second, smaller in diameter pilot mill serves to move toward the window thereby straightening the shaft while further cutting a portion of the casing surrounding the window thus assuring a more stable and accurate sidetrack direction. The third watermelon mill serves to dress the window in the casing after the first window mill and the second pilot mill pass through the casing.
Patent CA-2189610-C (CA)
Inventor: LOREE DWIGHT N
IPC: E21B43/16
Filed: 1996-11-05
Granted: 2002-06-25
Abstract: A well treatment fluid comprising a mixture of (A) a major amount of a first hydrocarbon fluid, the first hydrocarbon   fluid  being  composed  predominantly  of diaromatics  and  triaromatics  having  more  than  16 hydrocarbons,  and  (B)  a  minor  amount  of  a  second hydrocarbon  fluid,  the  second hydrocarbon  fluid being composed predominantly of hydrocarbons having from 7 to 12 carbon atoms, wherein the mixture has a density greater than 1000 kg/m3 at 15°C and a viscosity lower than 30 centiStokes  at  20°C.  In a  method  according  to  the invention, a kill fluid is formed by mixing the first and second hydrocarbon fluids to produce a hydrocarbon mixture having a viscosity of less than 30 centiStokes at 20°C and a density above 1000 kg/m3 at 15°C
Patent CA-2189816-C (CA)
Inventor: HYDE GREGORY
IPC: H05K7/16
Filed: 1996-11-07
Granted: 2001-01-23
Abstract: User confidentially requirements are achieved by the provision of a privacy screen. In the case of an electronic keyboard such as a sales terminal that is mounted upon a platform, the privacy screen may form a fixed portion or portions of the platform upon which the keyboard or keypad is mounted. A more flexible arrangement incorporates a privacy screen that may be rotated through a range of screening positions to conceal the users actions. This rotatable embodiment may be used for other applications, including telephone dialling, or other entry systems for confidential data, such as bank machines. The subject platform, in addition to being rotatable on its supporting mast may alsobe tiltable, to facilitate its use. The rotatable mast has a predetermined range of rotation, in excess of 180 degrees. The mast includes provision for containment of a connecting electrical cord in protected relation therein, with an access aperture at the head of the mast for passage of the connecting cord to the subject keypad.
Patent CA-2190552-C (CA)
Title: Method and apparatus for wireless communication system organization
Inventor: CHAWLA KAPIL K
IPC: H04B7/26
Filed: 1996-11-18
Granted: 2000-10-24
Abstract: A level of system self-organization in a wireless communication system is provided using a combined design, planning and verification process to determine system organization parameters. The process determines the parameters based on a measured path loss-related characteristic, such as path loss or bit error rate, between base stations and a plurality of regions in a coverage area. For each region, the characteristic is measured to each base station irrespective of the proximity between the region and the base stations. The measured characteristics enable the prediction of signal strength received at the regions of signals transmitted by the base stations independent of the region location. Accordingly, the characteristics can be measured without information correlating the absolute geographic locations of the regions. The resulting unique characterization of the path loss-related information can be used to determine a variety of system organization parameters, such as the number and transmission power of base stations, neighbor lists, sets of base stations that can reuse channels and the identity of base stations, if any, that can be omitted from the system.
Patent CA-2194747-C (CA)
Title: Apparatus and method for calibrating a storage tank
Inventor: MALININ LEONID M
IPC: G01F25/00
Filed: 1997-01-09
Granted: 2004-11-23
Abstract: An apparatus and method are provided for calibrating a liquor storage tank. The apparatus includes a sensor disposed within the tank for sensing the liquid levels in the tank and one or more metering devices for measuring the amount of liquid dispensed into or out of the tank. A processor is also provided which is capable of determining the volume in the tank as well as the amount of liquid dispensed into or out of the tank based on liquid level measurements obtained during idle periods following dispensing periods. The processor is programmed with an algorithm which employs a mathematical function which relates either the volume of the liquid or the change in volume of the liquid per unit of associated height change of the liquid in the tank as a function of the height of the liquid in the tank and a number of calibration parameters which include the length, diameter, end shape, and tilt of the tank as well as the offset of the sensor from the bottom of the tank. The calibration routine involves searching for the calibration parameters which minimize the sum of the square of the residuals between a first set of refined data values which are derived using the measured volumes (or volumes per unit of height change) dispensed by the meter devices and a second set of estimated volumes (or volumes per unit of height change) which are derived using the mathematical expression.
Patent CA-2199686-C (CA)
Inventor: SHEARN KENNETH M
IPC: B62D25/12
Filed: 1997-03-11
Granted: 2001-08-21
Abstract: A hood mounting system and methods having compliant hinge assemblies mounted between frontal portions of a hood and the vehicle frame. Detachable mating members are also preferably included and mounted between rearward portions of the hood and the vehicle cab. Such mating members can also provide compliant connection. The hood hinge assemblies shown have a rocker member pivotally connected to a support member and at least one resilient member between the rocker member and the support member. A second pivot axis is also defined relative to the rocker member about which the hood pivots.
Patent CA-2204349-C (CA)
Inventor: FECHTER MARK A
IPC: F16D13/64
Filed: 1997-05-02
Granted: 2006-08-08
Abstract: A dry plate torque overload clutch for a driveline has a clutch plate with knurled surfaces that are impressed into the facing surfaces of friction discs to strengthen and support the friction disc material so as to resist being squeezed out from between the clutch plate and the housing and pressure plate on the opposite sides of the friction discs.
Patent CA-2204485-C (CA)
Inventor: HILL CHARLES RICHARD
IPC: H01Q13/20
Filed: 1997-05-05
Granted: 2003-06-10
Abstract: A sensor cable comprising a center conductor surrounded by dielectric material, a first layer comprised of a gapped conductive material surrounding the dielectric material, a second layer having predetermined conductivity at least covering the gaps in the conductive material of the first layer, the predetermined conductivity and thickness of the second layer being such that the skin depth in the second layer at an operating frequency of the cable is much greater than the thickness of the second layer, and inductive coupling into or out of the cable through gaps in the second layer is at least an order of magnitude greater than capacitive coupling into or out of the cable through gaps in the second layer.
Patent CA-2205002-C (CA)
Inventor: DUNNE MICHAEL DAVID
IPC: B01J8/06
Filed: 1996-07-29
Granted: 2006-05-16
Abstract: Heat exchange apparatus and process, particularly heat exchange primary reforming with the primary reformed gas being subjected to partial combustion (and optionally secondary reforming) and the resultant partially combusted gas being used as the heat exchange medium to supply heat required for the primary reforming. The apparatus includes process fluid inlet (11) and outlet (14) zones separated from the heat exchange zone (13) by boundary means such as tube sheets (15, 16, 17) or header pipes (35). A plurality of heat exchange tubes (19) for a process fluid extending through a heat exchange zone (13) from one of the boundary means (15, 16) and slideably engage at the other boundary means (17) with seal tubes (26) fastened to said other boundary means (17). The interior of the inner one of the seal tube (26) and its associated heat exchange tube (19) is provided with a constriction (31) of reduced cross-sectional area forming a low pressure region (32) downstream of said constriction, an expansion region (33) of cross-sectional area greater than that of the constriction (31) downstream of said constriction, and one or more passages (34) through the wall of that inner tube connecting said low pressure region to the exterior of the inner tube. The passages (34) are located within the overlapping region of the seal tube (26) and heat exchange tube (19) so as to provide a leakage flow path for heat exchange medium from the heat exchange zone, through the overlapping region and said passages, into the low pressure region.
Patent CA-2207017-C (CA)
Inventor: RADU GEORGES
IPC: D21H23/76
Filed: 1997-05-23
Granted: 2002-09-17
Abstract: Disclosed is a method for the production of paper and an adjuvant composition comprising the following ingredients: 30 to 80 % by weight of phenolic resin or modified phenolic resin; 10 to 50% by weight of melamine resin; and 5 to 35% by weight of at least one naphthalene sulphonate salt.   The ingredients are under granulated form or dissolved in an aqueous solution.  The method comprises the step of admixing the adjuvant composition with a solution of one or several polyethylene oxide having a molecular weight varying from 1 x 106 to 13 x 106 and with an aqueous mixture comprising lignocellulosic  particles  and  an  aqueous  medium  to significantly improve the retention of particles such as fines and fibers, on a wire screen and the drainage of the aqueous medium.
Patent CA-2208409-C (CA)
Inventor: POTNIS PRASAD S
IPC: A61F13/15
Filed: 1995-10-27
Granted: 2002-09-03
Abstract: The absorbent composite (14) comprises a three-dimensional formed film (30) having a planar surface (32) and three-dimensional surface (36) defining a plurality of cavities (34) or projections depending downwardly from a planar surface (32). A plurality of the cavities (34) or projections or spaces defined by the cavities contain at least one type of absorbent material (40).  The composite (14) is useful in a fluid absorbent product having at least one liquid pervious layer (16) and at least one liquid impervious layer (12) where the absorbent composite is positioned between the liquid pervious layer (16) and the liquid impervious layer (12).
Patent CA-2209083-C (CA)
Inventor: SCHAFFNER TERRY MICHAEL
IPC: H03M13/27
Filed: 1996-10-09
Granted: 2002-01-08
Abstract: A decoder (215) implemented in a receiver of a wireless communication system employs an improved method and apparatus for decoding an encoded signal. The receiver sums the energy values (156A, 156B,...156N) from a plurality of fingers within to produce an aggregate energy value (166). From the aggregate energy value (166), a set of log-likelihood values (207) are generated with a non-linear function generator (205) before being deinterleaved by a deinterleaver (210). The deinterleaved values (213) are input to the decoder (215) which estimates the original signal (178) by incorporating path histories of bits in the estimation of subsequent, related bits. Use of the path histories of bits improves the estimates of the original signal (178), which translates into an increase in the sensitivity of the receiver.
Patent CA-2211449-C (CA)
Inventor: KIKUTA TOMOYUKI
IPC: H01H13/18
Filed: 1996-11-29
Granted: 2003-04-22
Abstract: L'invention concerne un commutateur à cordon très fiable dont la mise en circuit/hors circuit peut être reconnue, que l'on peut débarrasser des défauts de fonctionnement en évitant que les électrodes ne se touchent lorsqu'elles sont courbées, et qui détecte la pression lui étant appliquée dans toutes les directions. En prévoyant une configuration en spirale d'au moins deux fils-électrodes le long de la surface interne d'un isolant creux en caoutchouc élastique ou en plastique élastique, on fait en sorte que les fils-électrodes n'entrent pas mutuellement en contact électrique et soient fixés à l'isolant creux en faisant saillie par rapport à lui.
Patent CA-2213141-C (CA)
Title: Exhaust vent with external guard
Inventor: MEYER STEPHEN T
IPC: D06F58/20
Filed: 1997-08-15
Granted: 2000-04-11
Abstract: An exhaust vent guard for protecting the exit area of an air vent conduit includes an upper hood portion and integrally therewith a lower cage portion.  The upper hood portion includes a top wall, a pair of sidewalls, and a front wall, which collectively provide a weather barrier to prevent the entry of rain, snow, and other debris into the air vent conduit.  The lower cage portion includes a bottom wall, a pair of sidewalls, and a front wall, each of which are constructed and arranged with a plurality of openings for permitting the free flow of air through the lower cage portion while at the same time being small enough to prevent the nesting of birds inside of the exhaust vent guard.  In a related embodiment, a similarly configured exhaust vent guard is used in combination with a vent frame and a pair of flow-control louvers which are pivotally mounted into the vent frame.  The vent frame includes a central opening which is covered by the louvers when the louvers are in a closed condition, the louvers being arranged to open in response to an exiting air flow and to close back when the air flow is removed.  The guard assembles to the vent frame by a snap-fit arrangement.
Patent CA-2213881-C (CA)
Inventor: VOTOLATO EARL
IPC: B26B27/00
Filed: 1997-08-26
Granted: 2000-11-21
Abstract: A slitter comprising a blade having a cutting edge; a holder with blade, including a handle, and a terminal on the handle retaining the blade with the blade edge protruding; and a shield carried by the holder proximate the terminal, for movement between extended position in which the blade is protected, and retracted position in which the blade edge is exposed for cutting, the shield having two side plates movable adjacent opposites sides of said terminal, protective structure extending between said plates to extend beyond said blade in shield extended position, and a retainer interconnecting said plates, there being a pivot interconnection between said plates and said holder, proximate said retainer.
Patent CA-2214885-C (CA)
Title: Supported catalyst component, supported catalyst, preparation process, polymerization process, complex compounds, and their preparation
Inventor: JASTRZEBSKI JOHANN T B H
IPC: C08F10/00
Filed: 1996-03-04
Granted: 2006-10-24
Abstract: A supported catalyst component comprising (a) a support material, an organometal compound, and (b) an activator compound comprising b.1) a cation which is capable of reacting with a transition metal compound to form a catalytically active transition metal complex, and b.2) a compatible anion having up to 100 nonhydrogen atoms and containing at least one substituent comprising an active hydrogen moiety; a supported catalyst comprising the supported catalyst component and a transition metal compound; process for making the same; an addition polymerization process using the supported catalyst;  complex compounds, and a method for preparing the same.
Patent CA-2217565-C (CA)
Title: Methode de prevention et de traitement de la surdite de perception et des troubles vestibulaires a l'aide d'une proteine du facteur neurotrophique derive des cellules gliales (gdnf)
Inventor: MAGAL ELLA
IPC: A61K48/00
Filed: 1997-02-14
Granted: 2002-04-16
Abstract: La présente invention se rapporte de manière générale à des procédés de prévention et/ou de traitement de blessures ou de dégénération de cellules sensorielles cochléaires (et vestibulaires) et de neurones du ganglion spiral, qui consistent à administrer une quantité de facteur neurotrophique dérivé de cellules gliales (GDNF). L'invention se rapporte tout particulièrement à des procédés de traitement de la surdité neurosensorielle.
Patent CA-2220612-C (CA)
Title: Method and apparatus for inter-node deadlock avoidance on a parallel processing system
Inventor: HUFFMAN PAUL C
IPC: G06F17/30
Filed: 1997-11-03
Granted: 2001-04-24
Abstract: The invention provides a method and apparatus including a programming product for a parallel data processing system having a plurality of nodes interconnected by communication paths, in which one or more sets of data present at one or more source nodes of the system is required to be sent on a plurality of communication paths having communication buffers to selected nodes of the database system for processing, a system of communicating the data over the paths between the nodes to avoid deadlocking the processing system, including: accessing data from the one or more source nodes in subsets of the data; sending the subsets of data on a plurality of paths to the selected nodes of the processing system; if a path of the paths intended for the sending of one or more of the subsets of data becomes blocked, suspending the sending of subsets of the data on the path for a predetermined time period; if the blocked path becomes capable of accepting additional data before the predetermined time period has expired, resuming the sending of subsets of data on the path; however, if the predetermined time period expires without the path becoming available, placing one or more subsequent subsets of data intended for the path into an overflow buffer; when the blocked path again becomes free, sending the subsets of data from the overflow buffer on the path to the intended recipient node for processing.
Patent CA-2229507-C (CA)
Inventor: MORLOCK MICHAEL J
IPC: B23K9/038
Filed: 1998-02-13
Granted: 2001-06-19
Abstract: Methods are disclosed for gas shielded arc welding steel railroad rails spaced from each other to define a transverse gap, one of which methods comprises the steps of providing an elongated steel barrier plate wedged into the gap at the bottom of the spaced rails and filling gap above said steel barrier plate with a molten steel from an advancing filler metal electrode by a gas shielded electric arc welding process initiated by an arc between the electrode and the barrier plate. A second method comprises the continuous sequential laying of weld beads in the gap between rail heads along paths extending in laterally opposite directions for the beads to have first ends extending outwardly of an edge of the head in cantilever relationship thereto and which first ends are vertically thicker than second ends of the beads which are spaced from the first ends in the direction toward the opposite edge of the head.
Patent CA-2236166-C (CA)
Inventor: SANDHU JAGDEEP SINGH
IPC: C12N15/29
Filed: 1996-11-26
Granted: 2008-02-12
Abstract: The invention provides enhancers for one or more gene promoters, which enhancers are nucleotide sequences rich in A and T bases, the total amount of A and T bases comprising more than 50% of the nucleotide sequence. Particular sequences are identified from the pea plastocyanin promoter which are active as enhancers, as is a solely A/T nucleotide sequence, and methods of carrying out the invention are described.
Patent CA-2248038-C (CA)
Title: Methods of using emu oil and active fractions thereof as an insect repellent
Inventor: MANKER DENISE C
IPC: A01N65/00
Filed: 1997-03-13
Granted: 2006-02-21
Abstract: This invention provides a method for repelling biting insects such as mosquitoes by topically applying to the skin of a subject emu oil, fractions of emu oil obtained by flash chromatography or a composition comprising emu oil and citronella. Also provided are methods for repelling biting insects by topically applying diluted fractions of emu oil. The invention also provides a compound useful in repelling biting insects having the NMR spectrum of Figure 3, that is ultraviolet light sensitive and is reactive to vanillin/sulfuric acid. Also provided are compounds useful in repelling biting insects having the NMR spectrum of Figure 4, that is not ultraviolet light sensitive and is not reactive to vanillin/sulfuric acid. A composition for repelling biting insects comprising emu oil and citronella is further provided.
Patent CA-2248469-C (CA)
Title: Mould device with adjustable walls
Inventor: CHARBONNEAU YVES
IPC: B22D11/05
Filed: 1998-09-28
Granted: 2002-04-23
Abstract: A casting apparatus is described for casting metal ingots of rectangular shape comprising a mould assembly mounted on a casting table.  The mould assembly has a pair of opposed, outwardly curved long walls and a pair of opposed short walls defining a rectangular mould cavity. Both the opposed short walls and the opposed long walls are moveable to change the size of the cast ingot with the long walls being independently moveable from the short walls.  Operative means are provided for simultaneously moving the opposed long walls symmetrically about the centre-line of the mould cavity in both inward and outward directions, and a vertically moveable bottom block is provided which is adapted to move downwardly and support a forming ingot.
Patent CA-2249062-C (CA)
Title: Electronic device and method for fabricating the same
Inventor: TANAKA TSUYOSHI
IPC: H01L21/768
Filed: 1998-09-29
Granted: 2005-01-11
Abstract: A via hole having a bottom is formed in a substrate and then a conductor layer is formed at least over a sidewall of the via hole. Thereafter, the substrate is thinned by removing a portion of the substrate opposite to another portion of the substrate in which the via hole is formed such that the conductor layer is exposed.
Patent CA-2251273-C (CA)
Title: Pince de suspension, notamment pour ligne electrique aerienne, et suspension comportant une telle pince
Inventor: SAURINA MICHEL
IPC: H02G7/05
Filed: 1998-11-12
Granted: 2005-08-16
Abstract: Il s'agit d'une suspension qui, pour le soutien local d'une ligne électrique aérienne (10), comporte une pince de suspension (14) dont la part ie inférieure (14B), ouverte latéralement, forme un berceau (22) auquel est associé un ensemble de serrage (23) monté pivotant. Suivant l'invention, la pince de suspension (14) comporte, en sus de l'ensemble de serrage (23), une bride de fermeture (30), qui est elle aussi montée pivotante et qui est apte à fermer à la demande la section transversa le de la partie inférieure (14B). Application, notamment, à la mise en place et au soutien des ligne électriques aériennes basse tension formées de câbles isolés.