baber/WOPTO huggingface dataset:
Patent CA-2111734-C (CA)
Inventor: SCHULTZ ROGER LYNN
IPC: E21B34/16
Filed: 1993-12-17
Granted: 1999-12-14
Abstract: A system is provided for remotely controlling a downhole tool in a well. A plurality of substantially identical command signals are transmitted into the well. Each of the command signals is received at the downhole tool by a controller having information stored therein identifying an operative command signal signature associated with that tool. Upon comparing each command signal to the stored information and confirming that the command signal contains the operative command signal signature associated with that tool, a control signal is generated by the controller for each confirmed command signal. An operating element of the downhole tool is advanced one position in a repeating series of operational positions in response to each successive control signal generated by the controller.
Patent CA-2113009-C (CA)
Title: Telecommunications switch with integral feature installation capability
Inventor: BRENSKI EDWIN FRANK
IPC: H04Q3/00
Filed: 1994-01-07
Granted: 1998-09-22
Abstract: The operating system control device in a telecommunications switch is capable of operating under the control of software instructions associated with a new switch feature for executing a series of actions used to integrate the new switch feature with the operating system. The operating system control device further provides the capability operating under the control of software instructions fortesting the operability of the new switch feature. This minimizes the costs associated with the installation of new features and the amount of skilled craft personnel time required.
Patent CA-2115652-C (CA)
Inventor: TRELSMO KARIN BIRGITTA
IPC: D21H23/00
Filed: 1992-08-18
Granted: 2003-03-18
Abstract: A creping doctor apparatus includes a creping doctor (4) hav-ing a doctor blade (5) with a working edge (6). The creping doctor (4) is pivotable around a rotational axis (12) formed substantially at the working edge (6) to permit adjustment of an impact angle (A) formed at the working edge (6) between an impact surface of the blade edge and the cylindrical surface (2) of a Yankee dryer (3), from which an adhering paper web (1) is to be creped off. The impact angle (A), con-trols the result of the creping operation, e.g. the caliper and/or the macrostructure of the soft crepe paper web produced, but wear of the working edge (6) gradually causes a change in the impact angle (A), and thereby, in the creping conditions. To maintain the desired calip-er and/or the desired macrostructure as far as possible it is necessary to compensate for the wear of the working edge (6) by pivoting the creping doctor (4) substantially around the working edge (6) so as to maintain the impact angle (A). Circularly arched guide means (20), which have a radius of curvature (R) starting from a desired location of said rotational axis (12) substantially at the working edge (6), are provided for guiding the pivotal movement of the creping doctor (4).      The disclosed apparatus is compact, oscillatable and mechanically stable and can readily be substituted for an existing conventional creping doctor.
Patent CA-2116340-C (CA)
Title: Helicopter engine control having yaw input anticipation
Inventor: EBERT FREDERICK J
IPC: G05D1/00
Filed: 1992-08-27
Granted: 2000-05-23
Abstract: A helicopter engine fuel control anticipates sudden changes in engine power demand during yaw inputs to thereby minimize engine and main rotor speed droop and overspeed during yaw maneuvers. The rate (121, 123) of yaw control (107) position change generates (10) a yaw component (104) of a helicopter fuel control (52) fuel command signal (70). The magnitude of the yaw component is also dependent upon the rate of yaw control position change (703). The fuel command signal yaw component (104) is overrides (113, 115) when rotor decay rate (209, 217) has been arrested during a sharp left hover turn (216); when the yaw component is removing fuel (239) during rotor droop (238); and when the yaw component is adding fuel (228) during rotor overspeed (227).
Patent CA-2118037-C (CA)
Inventor: YOON INBAE
IPC: A61B17/34
Filed: 1993-04-14
Granted: 1999-08-10
Abstract: Un instrument à trocart de sécurité automatique rétractile (10) permet d'introduire une tête de manchon (14) dans une cavité corporelle et comporte une tête de manchon qui renferme un trocart (12), ainsi qu'un bouchier de protection (16) disposé entre la tête de manchon et le trocart et doté d'une extrémité distale (26) amincie dont la position déployée dépasse l'extrémité distale de la tête de manchon. Le trocart est supporté de manière à se déplacer automatiquement en position proximale à partir d'une position opérationnelle, où son extrémité distale effilée dépasse de la tête de manchon, vers une position rétractée où l'extrémité distale effilée se trouve protégée à l'intérieur de l'instrument du fait du mouvement distal d'un segment fonctionnel qui pénètre dans une cavité corporelle. Le bouclier de protection est monté de manière à se déplacer automatiquement en direction proximale depuis une position déployée pendant la pénétration dans le tissu T et à se déplacer automatiquement en direction distale vers la position déployée lors de l'introduction de l'extrémité distale de la tête de manchon dans une cavité anatomique.
Patent CA-2121495-C (CA)
Inventor: FORMAN MICHAEL R
IPC: A61M25/16
Filed: 1992-09-04
Granted: 1998-04-14
Abstract: A process for assembling a balloon catheter (16, 60) involves selectively concentrating laser energy along an annular fusion bond site (72) at contiguous surface portions (74, 76) of a length of catheter tubing (62) and a shaft or neck portion (68) of a dilatation balloon (66). The laser energy wavelength, and the polymeric materials of the balloon and catheter, are matched for high absorption of the laser energy to minimize conductive heat transfer in axial directions away from the bond site. This minimizes crystallization and stiffening in regions near the bond site, permitting fusion bonds to be located close to the proximal (24) and distal (26, 70) cones of the dilatation balloon (20, 66) while preserving the soft, pliant quality of the cones. The disclosure further is directed to an embodiment of a balloon  catheter assembled according to the process.
Patent CA-2122333-C (CA)
Title: Butt positioning and welding assembly using a laser jet for steel sheets welding
Inventor: PERU GILLES
IPC: B23K37/04
Filed: 1994-04-27
Granted: 2001-03-27
Abstract: The subject of the invention is an installation for the edge-to-edge positioning and for the welding, by means of a laser beam, of at least two sheet-metal blanks (2, 3). This installation comprises means (10) for supporting and for positioning a first sheet-metal blank (2) in a horizontal reference plane, means (20) for positioning the edge to be welded of the said first sheet-metal blank (2) in the axis of the laser beam, means (30) for holding the edge to be welded of the first sheet-metal blank (2), means (40) for gripping the first sheet-metal blank (2), means (50) for supporting and for positioning at least one second sheet-metal blank (3), means (60) for holding the edge to be welded of the second sheet-metal blank (3) against the edge to be welded of the first sheet-metal blank (2), means (70) for gripping using sectorised pressure, the said second sheet-metal blank (3), means (80) for applying lateral and sectorised pressure to the edges to be welded of the said sheet-metal blanks (2, 3), and a welding unit using a laser beam which can move in the junction plane of the sheet-metal blanks (2, 3) to be welded. <IMAGE>
Patent CA-2124988-C (CA)
Inventor: BHATIA CHANDRAKANT R
IPC: B41J3/407
Filed: 1994-06-02
Granted: 1999-09-21
Abstract: The drier consists of a plurality of nozzles that direct a small volume of air onto the printed image at as high a velocity as possible without disturbing the wet image. The air so delivered while it must be dry, does not have to be heated to effectively dry the image, however, the drying time can be reduced by increasing the air temperature if desired. The use of high velocity air creates what is known is ~skin effect" to dry the ink where the outer surface of the ink is quickly dried.
Patent CA-2126069-C (CA)
Title: Cathodes for zinc manganese dioxide cells having barium additives
Inventor: TAUCHER WALTRAUD
IPC: H01M6/04
Filed: 1992-12-21
Granted: 2006-06-06
Abstract: A cathode structure for alkaline manganese dioxide-zinc primary or rechargeable cells with improved capacity that comprise manganese dioxide active material, a conductive powder and an additive material uniformly mixed and pressed to form a porous body, wherein the additive is a barium compound which is at least 3 % mass of the solid components. The preferred additive is barium oxide, barium hydroxide or barium sulphate. The invention relates also to alkaline manganese dioxide-zinc primary or rechargeable cells, wherein the cathode structure is employed.
Patent CA-2126136-C (CA)
Inventor: THORPE STEVEN J
IPC: C25B1/02
Filed: 1994-06-17
Granted: 2007-06-05
Abstract: Metallic glass / amorphous metal electrodes produced by rapid solidification (i) having a structure that is either amorphous or nanocrystalline, (ii) containing the principal alloying element as Ni, (iii) containing alloying conditions of Co and Mo in the range of 0 to 8 at . %, and when combined with NI, represent 0.75 to 0.85 of the atomic fraction of the alloy, and (iv) containing metalloid elements comprised of one or more of the elements C,B,Si and P either singly or in combination to represent 0.15 to 0.25 atomic faction of the alloy. The electrodes have excellent thermal stability, improved stability in an aqueous electrolyte and can provide improved current efficiency - anodic overpotential performance. They are used in the electrolysis of aqueous electrolyte solutions such as mixtures of caustic and water in the production of oxygen and hydrogen.
Patent CA-2130184-C (CA)
Title: Linear lamp holographic trapped beam center high mounted stoplight
Inventor: SMITH RONALD T
IPC: B60Q1/30
Filed: 1993-12-21
Granted: 1997-01-28
Abstract: A holographic center high mounted stop light (CHMSL) employing a linear lamp source comprising a long and narrow cylindrical gas discharge bulb, a non-imaging light concen-trator cavity, a plastic light guide and a hologram. The CHMSL is characterized by previously unattainable compact-ness, weight savings, rear occupant headroom, driver rearward visibility, and electrical efficiency.
Patent CA-2134717-C (CA)
Inventor: KLASHINSKY ROD
IPC: G08G1/08
Filed: 1994-10-31
Granted: 1999-02-23
Abstract: Traffic monitoring systems which are provided herein include a set of sensors which is disposed in a traffic lane approaching a hazard for providing signals which are indicative of the speed, and which are also indicative of at least the weight of a vehicle traversing those set of sensors. A processor has a memory for storing site-specific dimensional data related both to the hazard and to signals received from the set of sensors. A traffic signalling device is associated with the traffic lane and is disposed downstream of the set of sensors. The processor, which controls the traffic signalling device, is responsive to the signals from the set of sensors for computing an actual vehicle speed and a computed maximum vehicle speed, which is derived from the site-specific dimensional data, and also from at least the weight of the vehicle. That speed is the maximum speed for that particular vehicle safely to negotiate that particular hazard. The processor operates the traffic signalling device if the computed actual vehicle speed exceeds the computed maximum vehicle speed. One embodiment is located before a steep downgrade and computes a safe descent speed for a vehicle to descend the downgrade and displays the safe speed on a roadside sign. Another embodiment is located before a curve, e.g., a highway exit ramp, and uses ramp data together with vehicle weight, height and class of vehicle information to predict whether the vehicle will exceed a threshold speed for that vehicle to negotiate that curve without rollover. A third embodiment is located on a steep downgrade approaching a traffic signal controlled intersection and computes whether the vehicle is a "runaway" which cannot stop at the intersection if necessary. In that case the system pre-empts the traffic signal to ensure that the vehicle has right of way through the intersection.
Patent CA-2136469-C (CA)
Inventor: ANNIS GERALD A
IPC: H05K9/00
Filed: 1994-11-23
Granted: 2003-07-08
Abstract: An electronic device such as a portable computer is shielded against electromagnetic interference using a flexible envelope that surrounds a circuit card within the housing of the device. The flexible envelope forms a shielding enclosure and has an electrically insulating flexible sheet, for example of polyethylene, and a sheet of conductive fibers embedded in the flexible sheet so as to leave a nonconductive face oriented toward the circuit card. The conductive fibers can be metallized nylon and are sufficiently dense to obtain a resistivity of 10-1 to 100-2 .OMEGA./~. The enclosure forms a hollow envelope with the conductive fibers coupled electrically across a seam, for example by cutting the flexible sheet and embedded fibers using heat. For use with a portable computer having a pivoting screen, a neck extension of the enclosure carries conductors through the area of the pivot. For access to circuit board elements, for example for changing or adding chips, an access opening is provided with a conductive extension that is movable to overlap the opening or to expose the opening. The flexible envelope can be joined to a circuit ground by clamping conductive fibers on an exposed face to a metal connector panel of the device.
Patent CA-2138985-C (CA)
Inventor: DYSON JAMES
IPC: A47L9/16
Filed: 1993-06-24
Granted: 2004-01-20
Abstract: A vacuum cleaner comprising a dirty air inlet (12, 14) communicating with a clean air outlet by means of an airflow path has a cyclone (18) arranged in the airflow path. In use, air flowing along the airflow path from the dirty air inlet (12, 14) to the clean air outlet passes through the cyclone (18). At least one bleed valve (20) is arranged in the wall of the airflow path upstream of the cyclone (18). Preferably, three bleed valves (20) are located in the wall of the airflow path and, more preferably, the bleed valves (20) are substantially identical to one another. Control means (94, 102) may be provided for controlling the amount of air bled through the bleed valve (76) when a single bleed valve is provided.
Patent CA-2139664-C (CA)
Title: Covalent polar lipid-peptide conjugates for biological targeting
Inventor: YATVIN MILTON B
IPC: A61K47/48
Filed: 1993-07-08
Granted: 2000-10-24
Abstract: This invention relates to a novel method of targeting biologically-active compounds to cells and organelles within cells. Specifically, the method comprises covalently linking such biologically-active compounds to a polar lipid carrier. The invention provides compositions of matter comprising such biologically-active compounds covalently linked to polar lipid carrier molecules that have the unique ability to both enhance the rate at which such biologically-active compounds cross cellular plasma membranes and to direct the compounds-lipid conjugate to specific organelles within the cell. The versatility of these conjugates may be further enhanced by including a spacer group between the drug and the lipid which may act to modulate release of the biologically-active compound at the target site. Specific embodiments of the compositions of the invention include antineoplastic and antiviral drugs. Other embodiments are provided for delivering and specific targeting of antigenically-active peptides to cells for the specific-production of immunological reactivity against such peptides, as well ass compositions and pharmaceutical compositions of matter comprising such peptides. These embodiments of the invention thereby provide improved methods for vaccine production and in vivo vaccination against pathogenic microorganisms and methods for alleviating autoimmune disease and ameliorating tissue and organ transplant rejection.
Patent CA-2143078-C (CA)
Title: Method and apparatus for conditioning unrecycled ambient air
Inventor: YAEGER RONALD J
IPC: F24F3/147
Filed: 1995-02-21
Granted: 2005-11-08
Abstract: A method and apparatus for conditioning the temperature and humidity of unrecycled ambient air within a certain climatic window of parameters to a desired point within a certain conditioned window of parameters is provided that comprise directing part of the ambient air through a cooling coil and humidifier connected in series and directing the other part of the ambient air through a bypass duct and recombining the bypass air with the conditioned air to create an air stream at the desired temperature and humidity. The air passing through the cooling coil and humidifier is overcooled and then brought to the desired condition upon combination with the bypass air.
Patent CA-2143898-C (CA)
Title: A process for reactivating purified membrane proteins by freezing them
Inventor: ZANDER NORBERT F
IPC: G01N33/68
Filed: 1995-03-03
Granted: 2007-09-25
Abstract: A process is described for reactivating purified membrane proteins in which a mixture composed of membrane protein, a phospholipid and a detergent is frozen and subsequently thawed.
Patent CA-2144187-C (CA)
Inventor: REZAI EBRAHIM
IPC: A61L15/60
Filed: 1993-09-23
Granted: 2002-04-30
Abstract: Porous, absorbent macrostructures that, upon contacting liquids such as water or body exudates (e.g., urine), swell and im-bibe such liquids, and are useful in absorbent articles such as diapers, adult incontinence pads, and sanitary napkins are dis-closed. These porous macrostructures comprise bonded absorbent particles that are surface crosslinked with cationic, preferably polymeric, amino-epichlorohydrin adducts.
Patent CA-2148763-C (CA)
Title: Hearing aid
Inventor: RENGGLI PETER
IPC: H04R25/00
Filed: 1995-05-05
Granted: 2003-06-10
Abstract: The hearing aid with a faceplate is charactrized in that the axle for the mounting of a part which can be pivoted outwards consists of an electrically conductive material and serves as connection between mentioned part and the electronics of the apparatus.
Patent CA-2154263-C (CA)
Inventor: DEVON THOMAS JAMES
IPC: C07F9/28
Filed: 1994-02-02
Granted: 1999-03-23
Abstract: Disclosed is a process for the preparation of alkali metal diarylphosphide compounds wherein at least one of the aryl radicals is substituted with an alkyl group. Also disclosed is the preparation of alkyl (diaryl) phosphine compounds which are obtained by the reaction of the alkali metal diarylphosphide compounds with alkyl halide alkylating agents.
Patent CA-2154775-C (CA)
Inventor: LINDGREN ERIK
IPC: C07C45/90
Filed: 1994-02-07
Granted: 2001-10-16
Abstract: The invention relates to a method for reducing the content of organic solvent in cellulose-reactive hydrophobing agents and use of the products obtained. According to the method the solvent is transferred from the hydrophobing agent to an aqueous phase by dispersing the hydrophobing agent in water. The aqueous dispersion is thereafter contacted with a sorbent or a gas whereby the solvent is transferred from the aqueous phase to the sorbent or the gas. Suitably, the hydrophobing agent is an alkyl ketene dimer, for the preparation of which toluene is generally used. Suitably, the sorbent is a zeolite which can be removed from the dispersion before this is used in papermaking, in particular for hydrophobation of paper.  Alternatively, the zeolite can be maintained in the dispersion since the solvent is strongly sorbed on the zeolite surface, whereby only very small amounts of solvent can exist in free form.
Patent CA-2157319-C (CA)
Inventor: OKI EIJI
IPC: H04L45/02
Filed: 1995-08-31
Granted: 2007-01-30
Abstract: In order to establish virtual channel networks on an ATM network, a different virtual channel handler interconnection network for each media or service consisting of information to be transferred is established on a virtual path network; and virtual channel networks corresponding to these media or services are formed by means of these respective virtual channel handler interconnection networks, whereby a plurality of independent virtual channel networks for different media or services are established simultaneously on a single physical network.
Patent CA-2162788-C (CA)
Title: Digital data recording/reproducing apparatus and method with means for adding arrival time to a data packet
Inventor: YANAGIHARA NAOFUMI
IPC: H04N7/52
Filed: 1995-11-14
Granted: 2006-07-11
Abstract: A digital VTR is capable of reproducing a recorded picture image in a normal mode and a variable speed reproduction mode. During normal speed reproduction, the digital VTR reproduces a recorded picture from data that has been recorded in a normal play area of a recording medium. When the digital VTR is in a variable low speed reproduction mode, it reproduces a picture from data recorded in a first trick play area . When the digital VTR is in a variable high speed reproduction mode, it reproduces a picture from data recorded in a second trick play area. The first and second trick play areas are located at respective tracks that correspond to different azimuths.
Patent CA-2164173-C (CA)
Title: Method and apparatus for incremental delivery of access rights
Inventor: EYER MARK K
IPC: H04N7/167
Filed: 1995-11-30
Granted: 2001-02-13
Abstract: Incremental delivery of authenticated access rights to an access control processor is provided. Subgroups of the access rights are communicated to the processor in a plurality of messages. The subgroups are stored in different data banks within the processor, and validity designations associated with the data banks indicate whether the data currently stored therein has been authenticated under a cryptographic key currently in use. Access under a particular key is limited to that provided by access rights contained in storage banks having a validity designation in a valid state for that key.
Patent CA-2164461-C (CA)
Inventor: TANIZAKI TATSUYA
IPC: C08L23/10
Filed: 1995-12-05
Granted: 2000-08-08
Abstract: Disclosed is a polypropylene composition comprising (A) polypropylene and (B) a specific propylene-1-butene random copolymer in a specific amount ratio.  The propylene-1-butene random copolymer (B) is characterized in that: (1) the copolymer contains 50 to 95 % by mol of constituent units from propylene and 50 to 5 % by mol of constituent units from 1-butene,  (2) the intrinsic viscosity, as measured in decahydronaphthalene at 135 °C, is in the range of 0.1 to 12 dl/g,  (3) the molecular weight distribution (Mw/Mn), as determined measured by GPC, is not more than 3, and (4) the parameter B value indicating randomness of the copolymerized monomer sequence distribution is in the range of 1.0 to 1.5.  Also disclosed is a polypropylene composite film comprising (I) a crystalline polypropylene layer and (II) a layer formed from the polypropylene composition, which is laminated on at least one surface of the crystalline polypropylene layer (I).  The polypropylene composition is excellent in heat resistance and low-temperature heat-sealing properties as well as in flexibility and impact resistance.  The polypropylene composite film is excellent in not only heat-sealing properties, particularly low-temperature heat-sealing properties, but also transparency, scratch resistance and blocking resistance.