baber/WOPTO huggingface dataset:
Patent CA-2323654-A1 (CA)
Inventor: TABANOU JACQUES R
IPC: E21B47/12
Filed: 2000-10-18
Abstract: An apparatus and a method for controlling oilfield production to improve efficiency includes a remote sensing unit that is placed within a subsurface formation, an antenna structure for communicating with the remote sensing unit, a casing joint having nonconductive "windows" for allowing a internally located antenna to communicate with the remote sensing unit, and a system for obtaining subsurface formation data and for producing the formation data to a central location for subsequent analysis. The remote sensing unit is placed sufficiently far from the wellbore to reduce or eliminate effects that the wellbore might have on formation data samples taken by the remote sensing unit. The remote sensing unit is an active device with the capability of responding to control commands by determining certain subsurface formation characteristics such as pressure or temperature, and transmitting corresponding data values to a wellbore tool. The inventive system includes an antenna structure that is for delivering power and communication signals to the remote sensing unit. In one embodiment, the antenna structure is formed on an external surface of a wellbore casing. In another embodiment, the antenna structure is formed on a downhole tool such as a drilling collar or a cased hole wireline tool. For those embodiments in which the antenna structure is formed on a cased holed wireline tool, a casing joint is provided that includes nonconductive windows for allowing RF  signals to be transmitted from within the casing to the remote sensing unit and from the remote sensing unit to the wireline tool. An inventive method therefore includes providing RF power through the inventive antenna system to the remote sensing unit to wake it up and to place it into an operational mode. The method further includes receiving modulated data values from the remote sensing unit through the antenna system that are then transmitted to the surface where operational decisions for the well may be made.
Patent CA-2327045-A1 (CA)
Inventor: DERVENTZIS STYLIANOS
IPC: H01S3/16
Filed: 2000-11-22
Abstract: An amplifier for amplifying one or more optical signals. The amplifier has a body for propagating optical signals and the body is doped with a material which will emit light in response to pumping. At least one pump light source is provided having a pump beam path directed through the signal propagating body. The pump light source emits light capable of pumping the light emitting material to cause the light emitting material to emit light. At least one optical signal source is also provided emitting one or more optical signals having one or more optical signal paths through the body. At least one of the optical signal intersects the pump beam path to define a pumped signal path in the body. At least one of the optical signal paths and/or the pump beam path is at least partially unguided along the path through the signal propagating body.
Patent CA-2331121-A1 (CA)
Inventor: FAHRAEUS CHRISTER
IPC: H04N1/195
Filed: 1999-04-30
Abstract: A device for recording information by means of imaging with the aid of a light-sensitive sensor with a two-dimensional sensor surface is described. The device is adjustable between a first mode and a second mode. In the first mode, the imaging is effected by means of a plurality of images with partially overlapping contents. Each of the images depicts a small area on an information carrier and the images are put together into a composite image. In the second mode, the imaging is effected by means of at least one image of a larger area of the information carrier. The device has means for indicating the size of the imaging area.
Patent CA-2331337-A1 (CA)
Title: Site specific protein modification by mutagenesis
Inventor: PETTIT DEAN K
IPC: A61K47/48
Filed: 1999-06-18
Abstract: Processes for conjugating proteins with polyethylene glycol are disclosed. The disclosed processes provide modified proteins having little or no decrease in their activity and include the steps of deleting at least one amino acid residue on the protein, replacing the at least one amino acid residue with an amino acid residue that does not react with polyethylene glycol, and contacting the protein with polyethylene glycol under conditions sufficient to conjugate the polyethylene glycol to the protein. This advantageous retention of a desired protein activity is attributed to the availability of one or more protein binding sites which is unaltered in the conjugation process and thus remains free to interact with a binding partner ligand or cognate subsequent to the conjugation process.
Patent CA-2331990-A1 (CA)
Inventor: LAOR HERZEL
IPC: G02B6/35
Filed: 1999-06-04
Abstract: An optical switch device includes a first array (20) of reflectors (22), each associated with a separate optical fiber input (12), and a second array (30) of reflectors (32), each associated with a separate fiber output (14). The reflectors (22 and 32) are positionable to direct an optical signal from any one of the fiber inputs (12) to any one of the fiber outputs (14). The optical signal is directed along an optical pathway between the desired fiber output (14) and its associated reflector that is substantially aligned with an axis extending centrally from the fiber output. Preferably, symmetrical fiber beam forming units for forming the optical signal into a focused beam are included between the fiber inputs (12) and the first array as well as between the second array (20) and the fiber outputs (14). A method for switching optical signals between an input and an output optical fiber end involves forming the optical signal emitted from the input fiber end into a focused beam wherein rays from a point on the input fiber end are convergent. The focused beam is directed towards the output fiber end using at least two positionable reflectors oriented to direct the signal so that, prior to reaching the fiber output, it propagates along an optical pathway that is substantially aligned with an axis extending centrally from the output fiber end.
Patent CA-2332503-A1 (CA)
Inventor: MARTIN RENE
IPC: E04D13/04
Filed: 2001-01-26
Abstract: A flat roof structure having a recess with a surrounding area in which is mounted a drain for evacuating standing water on the flat roof. The drain including a housing extending upwardly and outwardly from the flat roof, a sump extending downwardly and inside the flat roof, a liquid pump for draining the water collected from the flat roof, a discharge line connected to the liquid pump and being located in the sump of the drain. The discharge line passing through one of the four walls of the sump, thus allowing it to extend under the flat roof and inside the building. The drain also including a heating element for keeping the standing water collected in the sump in a substantially liquid state within the drain so as to allow continuous discharging of the collected standing water even in sub-zero weather conditions.
Patent CA-2332716-A1 (CA)
Title: Methods for forming amorphous ultra-high molecular weight polyalphaolefin drag reducing agents
Inventor: MONAHAN MICHAEL J
IPC: C08F110/00
Filed: 1999-05-14
Abstract: A composition including polyalphaolefins that function as drag reducing agents and a process for the preparation of polyalphaolefins that function as drag reducing agents are disclosed. The process includes contacting alpha olefin monomers with a catalyst system, which includes a catalyst and an activator (co-catalyst) in a reactant mixture. The catalyst is a transition metal catalyst, preferably titanium trichloride, and the co-catalyst may include an alkylaluminoxane, alone or in combination, with a dialkylaluminum halide or a halohydrocarbon. The polymerization of the alpha olefin monomers produces a non-crystalline, ultra-high molecular weight polyalphaolefin having an inherent viscosity of at least 10 dL/g. The addition of the alkylaluminoxane during the polymerization process provides for a non-crystalline, ultra-high molecular weight polyalphaolefin and a more uniform molecular weight distribution of the resulting polyalphaolefin, thereby creating a drag reducing agent superior to known drag reducing agents. A process for forming a drag reducing agent comprising a non-crystalline, ultra-high molecular weight polyalphaolefin having an inherent viscosity of about at least 10 dL/g and a process for reducing drag in a conduit are also disclosed.
Patent CA-2335594-A1 (CA)
Inventor: KARLSSON PATRIK
IPC: H04W36/30
Filed: 1999-06-04
Abstract: A technique for estimating the quality of an unmeasureable channel in a time division multiple access radio telecommunication network is disclosed. In an embodiment of the invention, the estimate of the unmeasurable channel is based on samples from other time slots or channels on the same carrier frequency in the same cell. By way of example, a plurality of quality measurements, which may include the interference, bit error rate (BER), frame erasure rate (FER), and burst quality (BQ) are performed on associated channels of the same carrier frequency and cell as the unmeasurable channel. The quality is based on the suitable maximum value of the estimated values derived from the associated channels. The method is applicable to either uplink or downlink signal measuring techniques and provides an effective means for estimating intrafrequency channels that are closely correlated.
Patent CA-2337644-A1 (CA)
Inventor: KELLER GUIDO
IPC: B41J11/70
Filed: 2001-02-21
Abstract: An apparatus for printing on sheet material is set-up in a modular fashion having physically added modules, particularly having modules stackable one on top of another, each module including a printing mechanism. The apparatus also includes a modular distributor unit that is distributed amongst the modules for distributing the blank sheet material to the available modules and, if required, for brining together printed sheet material and for sorting the printed sheet material. The modules are designed such that they can be easily stacked one on top of another, so that no cabling or wiring has to be carried out. The connection of the individual modules with each other is made through a bus system having corresponding connection and expansion interfaces, for example in the form of plug-in connections. A central control unit is provided in a base module, which central control unit recognizes the connected expansion modules through the bus system and configures itself. The central control unit independently distributes the queued printing jobs to available modules and hence achieves optimally short run times for each individual job. The capacity parameters of the printing apparatus can be co-ordinated exactly with the needs of the user by means of the module concept.
Patent CA-2338523-A1 (CA)
Inventor: BOARDMAN LARRY D
IPC: H01L21/027
Filed: 1999-07-13
Abstract: Les polymères de la présente invention sont caractérisés en ce qu'ils présentent au moins un groupe fonctionnel acétal ou cétal pendant dans lequel au moins deux substituants de l'atome de carbone d'acétal/cétal comprennent indépendamment au moins un atome de silicium. Les compositions de la présente invention sont utiles en tant que compositions de résist positif, en particulier en tant que couche d'imagerie supérieure dans une combinaison de résist bicouche utilisée dans la production de circuits intégrés.
Patent CA-2340760-A1 (CA)
Inventor: SHANBHAG ABHIJIT G
IPC: H04J13/12
Filed: 1999-08-17
Abstract: L'invention concerne un procédé de transmission appliqué à un système de communication qui possède des vecteurs de code orthogonaux (10) servant à transmettre des signaux de message. Le procédé consiste à former une première matrice de vecteurs en utilisant une première série de décalages circulaires et à former une deuxième matrice de vecteurs en utilisant une deuxième série de décalages circulaires. L'invention concerne aussi l'utilisation d'opérations de permutation déterminées à des fins d'obtention d'un vecteur de code quasi orthogonal (50). Le vecteur de code quasi orthogonal (50) est appliqué à un signal de message pour fournir un signal de message codé, qui sera ensuite transmis. La formation de la première matrice de vecteurs comprend les décalages circulaires d'une séquence possédant un polynôme caractéristique.
Patent CA-2341070-A1 (CA)
Title: Flatulence air filtration systems
Inventor: POIRIER LEOPAUL J
IPC: A61F13/15
Filed: 2001-03-21
Abstract: Flatulence air filtration systems are products used to eliminate those embarrassing odors. The pad which is the smallest in design of its type is soft and plyable, consisting of a envelope and a activated carbon filtering media which is inserted into the envelope.  This pad is then placed strategicly over rectal orifice inside undergarments ready to filter any air movement encountered. This pad known as Flatulence Air Recycling Theory, ( F.A.R.'T'. ) is totally disposable, or partially disposable by disposing of envelope only, retaining filtering media to be replaced in new envelope. The second system, Flatulence Air Filtering diaper resembles as it's name implies a diaper. this air filtering diaper consists of an envelope fully sealed with a activated carbon filtering media inside. The diaper is totally disposable though it has optional disposable inlay liners to protect main body of diaper from minimal body excretions such as sweat. Liners will prolong diapers usefulness. Underware products are also part of these filtering systems, they would have a pocket in the back to accommodate activated carbon filtering media. Filtering media is then disposed of in all systems when activated carbon is spent, no longer absorbing odors and replaced with new filter media.
Patent CA-2341299-A1 (CA)
Title: Drill tool assembly
Inventor: STOKEY TIMOTHY G
IPC: B23B51/00
Filed: 1999-08-19
Abstract: The invention is directed at a drill tool assembly (10) including a holder (12) having a shank (14) and a head portion (16) and having an axial centerline or rotational axis (18) on which said holder (12) is rotated in use. The head portion (16) includes a holder slot (30) at least over a central portion of the head, with the slot (30) being oriented perpendicularly to the axial centerline of the holder (12). The holder slot (30) also includes a locating boss (24). A drill insert (35) having first and second cutting surfaces is selectively positioned within the holder slot (30). Both the position of the boss (24) and corresponding position of the drill insert (35) and locating slot (30) with respect to the holder (12) to mimimize offset errors in these relative positions.
Patent CA-2342086-A1 (CA)
Inventor: DE LAFORCADE VINCENT
IPC: B65D47/34
Filed: 2001-03-22
Abstract: La présente demande concerne un élément (10) destiné à être monté dans un passage de reprise d'air (210) d'un récipient (300), ledit élément (10) étan t, au moins partiellement, élastiquement déformable et comportant un organe (15) d'ouverture/fermeture qui, dans une configuration fonctionnelle de l'élément , lorsque la dépression à l'intérieur du récipient est inférieure à une valeur prédéterminée, est en contact étanche avec un siège (216) formé à l'intérieu r du récipient (300), autour d'au moins une partie du passage de reprise d'air, ledit organe (15) étant apte à s'écarter dudit siège (216) lorsque ladite valeur prédéterminée est atteinte, de manière à autoriser la reprise d'air à l'intérieur du récipient (300), et, par rappel élastique, à reprendre sa position en contac t étanche sur ledit siège (216) lorsque la dépression à l'intérieur du récipie nt (300) repasse en dessous de ladite valeur prédéterminée, la mise en configuration fonctionnelle de l'élément étant obtenue par une modification non élastiquement réversible de ce dernier lors du montage.
Patent CA-2342725-A1 (CA)
Inventor: CALOT GUILLAUME
IPC: H04B17/00
Filed: 2000-07-06
Abstract: The invention concerns a method for estimating a signal-to-noise ratio, in particular digital, received by a radio communication receiver. Said method is characterised in that it consists in estimating separately the signal and the noise and in filtering (36, 44) separately the signal (E¿b?) and the noise (N¿0?) before carrying out the division (40) of the signal from the noise. The noise filtering is for example of the statistical type, whereas the signal filtering is of the low-pass filtering type.
Patent CA-2345889-A1 (CA)
Title: Ground strap for electrical box
Inventor: FEEK JOACHIM
IPC: H02G3/08
Filed: 2001-05-01
Abstract: An electrical box assembly includes an electrical box, a ground strap and a connecting member extending between adjacent ground straps. The electrical box includes coupling members on opposite end walls. The coupling members include a pair of opposing coupling tabs for engaging the ground strap. The ground strap includes coupling tabs formed on each side of the ground strap for wedging between the tabs of the coupling members to secure the ground strap to the electrical box by an interference fit. A connecting member can be clamped between the ground straps and the bottom wall of the electrical box to provide electrical connection between each of the ground straps.
Patent CA-2346585-A1 (CA)
Title: Apparatus and method for separating gas and solids from well fluids
Inventor: COBB DELWIN E
IPC: E21B43/38
Filed: 2001-05-07
Abstract: An apparatus and method for separating gas and solids from well fluids in a borehole including a gas-solids separator (34) having an outer tubular member (44) and an inner flow tube (46). A gas spiral housing (62) has a gas spiral (66) at its lower end positioned beneath a plurality of perforations (60) in tubular member (44). A solid spiral (70) is positioned below upper gas spiral (66) and a swirl chamber (71) is provided between gas spiral (66) and solids spiral (70). Gas separated by gas spiral (66) flows upwardly in inner gas annulus (72) to gas reservoir (74) for discharge by ball check valve (76). The solids are separated by solids spiral (70) and the clean liquid after the gas and solids have been separated flows upwardly in flow tube (46) and pipe string (14) from lower swirl chamber (80). An embodiment shown in Figure 5 provides a shroud (27A) about a downhole motor (20A) to effect cooling of motor (20A).
Patent CA-2346947-A1 (CA)
Title: Woven fabric with flat film warp yarns and apparatus for forming same
Inventor: DUNN RONALD LEEFATE
IPC: D03D13/00
Filed: 1999-10-04
Abstract: A textile fabric comprises a plurality of weft yarns extending generally in a weft direction and a plurality of flat film warp yarns extending generally in a warp direction. The warp yarns are interwoven with the weft yarns in a series of identical repeating units of a predetermined weave pattern. The flat film warp yarns, which are preferably between about 10 and 40 µm in thickness and 0.010 and 0.025 inches in width, are preferably interwoven with the weft yarns such that, in each of the identical repeating units, the weft yarns are interwoven as coupled pairs, such that a first yarn of each of the coupled pairs follows the same interweaving pattern relative to each of the flat film warp yarns as a second yarn of that pair. This configuration, known as a "double-pick" configuration, can produce a fabric that has acceptable appearance and feel, but at a considerably lower cost than typical textile fabrics of comparable weight because of the presence of the flat film warp yarns. The flat film warp yarns can be formed on a slitting apparatus having a plurality of parallel, aligned, spaced apart cutting blades.
Patent CA-2347320-A1 (CA)
Title: Rotating drilling head system with static seals
Inventor: CALDER IAN DOUGLAS
IPC: E21B33/08
Filed: 2001-05-10
Abstract: A rotatable head assembly wherein there is an outer housing that carries a cartridge assembly that permits rotational movement. The cartridge assembly made up of a cartridge housing and cartridge body that is rotatable within the cartridge housing. Static seals are used to provide fluid seals between the radially outer surface of the cartridge housing and the outer housing. Fluid passages within the cartridge housing carry lubricating fluid from the static seals to dynamic seals that allow the cartridge body to rotate easily within the cartridge housing. Fluid passages are also provided within the cartridge housing for carrying spent fluid out through the cartridge housing.  There may be multiple fluid inlets and outlets within the cartridge housing without requiring a multiplicity of stepped increases in the diameter of the cartridge housing and the outer housing. Instead, the inlets and outlets are angularly spaced about the circumference of the cartridge, and each of the fluid passages extends axially through the cartridge housing to a different axial position, or elevation, along the body of the cartridge housing. The static seals also provide resilient and lasting fluid sealing.
Patent CA-2349576-A1 (CA)
Title: Method and apparatus for shooting using biometric recognition
Inventor: BROOKS JULIANA H J
IPC: G06K9/00
Filed: 1999-10-20
Abstract: An apparatus for shooting (300). The apparatus includes a gun (302). The apparatus includes a controller connected to the gun which controls whether the gun can fire (304). The apparatus includes a mechanism for determining a  present biometric signature of a shooter who desires to fire the gun. The determining mechanism is in communication with the controller. The controlle r only allows the gun to fire if the present biometric signature of the shoote r is recognized by the controller. A method for firing a gun. The method includes the steps of gripping a handle (308) of a gun by a shooter. Then there is the step of recognizing a present biometric signature of the shoote r. Next there is the step of releasing a trigger of the gun so the gun can fire  as long as the biometric signature of the shooter is recognized.
Patent CA-2353996-A1 (CA)
Inventor: SOLLING TINO
IPC: G11B33/04
Filed: 1999-12-08
Abstract: The invention relates to a storage device comprising: a base element, at least two flexible arms extending in a direction perpendicular to the base element, at least one support element for supporting the data carrier at the outer circumference, the support element leaving a space allowing a grip under the circumferential rim of the data carrier. The invention further relates to a box comprising a storage device according to the invention.
Patent CA-2354181-A1 (CA)
Inventor: MURAGLIA PHILIPPE
IPC: H05K7/14
Filed: 2001-07-26
Abstract: A computer system wherein an assembly of passive backplane modules allows a variety of active boards of the same or of different architectures to be used in the same chassis. This technology differs from any others in that it presents a second level of modularity in addition of the usual one, which is putting active boards in a passive backplane. In addition, several backplane modules of different types allow different architectures to be used on a slot by slot basis and wiring requirements to link said backplane modules are minimized.
Patent CA-2360579-A1 (CA)
Inventor: JANKOVIC MIROSLAVA
IPC: B60L50/15
Filed: 2001-10-25
Abstract: An energy control strategy (10) for a hybrid electric vehicle that controls an electric motor during bleed and charge modes of operation.   The control strategy (10) establishes (12) a value of the power level at which the battery is to be charged. The power level is used to calculate (14) the torque to be commanded to the electric motor.   The strategy (10) of the present invention identifies a transition region (22) for the electric motor's operation that is bounded by upper and lower speed limits. According to the present invention, the desired torque is calculated by applying equations to the regions before, during and after the transition region (22), the equations being a function of the power level and the predetermined limits and boundaries.