baber/WOPTO huggingface dataset:
Patent CA-2157878-A1 (CA)
Title: Production of difluoromethane
Inventor: SCOTT JOHN DAVID
IPC: C07B61/00
Filed: 1994-03-14
Abstract: A process for the production of difluoromethane comprising contacting dichloromethane with hydrogen fluoride in the presence of a fluorination catalyst comprising zinc or a compound of zinc and a metal oxide, fluoride or oxyfluoride.
Patent CA-2162903-A1 (CA)
Title: Methods for treating non-cotton-containing fabrics with cellulase
Inventor: CLARKSON KATHLEEN A
IPC: C11D3/386
Filed: 1995-03-14
Abstract: Disclosed are improved methods for treating cotton-containing fabrics and non-cotton-containing cellulosic fabrics as well as the fabrics produced from these methods. In particular, the disclosed methods are directed to contacting cotton-containing or non-cotton-containing cellulosic fabrics with an aqueous solution containing a fungal cellulase composition which comprises one or more EG type components and one or more CBH I type components wherein said cellulase composition has a protein weight ratio of all EG type components to all CBH I type components of greater than 5:1. Cotton-containing fabrics so treated possess decreased strength loss as compared to fabrics treated with a cellulase composition greater amounts of CBH I type components.
Patent CA-2163323-A1 (CA)
Title: Waveguide-Coaxial Converter
Inventor: UMEZU KEIICHI
IPC: H01P5/103
Filed: 1995-11-20
Abstract: A waveguide-coaxial converter is proposed that includes a low-pass filter and is characterized by simple and compact construction.  A passage is formed penetrating the side wall of a square waveguide and communicating with a cavity of the square waveguide, and a connector is provided in a portion of the passage such that a core conductor passes through the passage and is directed toward the cavity.  A low-pass filter made up of a plurality of joined conductors of differing impedance is provided at a portion of the core conductor within said passage, and the core conductor which extends through the low-pass filter protrudes from the inner wall of the square waveguide and into the cavity a distance matching a pass band.
Patent CA-2165343-A1 (CA)
Inventor: COLLINS RICK L
IPC: G06Q50/00
Filed: 1994-08-18
Abstract: A method for calculating a coagulation characteristic of a sample (513) of blood, a blood fraction, or a control comprises generating an output signal (501) indicative of coagulation of the sample, sampling the output signal (501) at a sampling rate for a predetermined time to provide a plurality of sample signal values, storing (500) the sampled signal values, rectifying (604) the stored sampled signal values to provide a plurality of envelope values (503), and storing (606) the envelope values (503). The stored envelope values (503) are examined in reverse time order to determine a slope of the envelope (503) at each of the stored envelope values (503). All relative maximum is in the stored envelope values (503) are identified. A range of stored envelope values (503) corresponding to each relative maximum is determined.  The identified relative maxima are compared (732, 734, 736, 738) to locate an absolute maximum in the stored envelope values (503). The coagulation characteristic is then calculated from the stored envelope values within the predetermined range of envelope values corresponding to the absolute maximum.
Patent CA-2168615-A1 (CA)
Title: Catheter-advancement actuated needle retraction system
Inventor: ERSKINE TIMOTHY J
IPC: A61M5/32
Filed: 1996-02-01
Abstract: A catheter-advancement actuated needle retraction system is disclosed herein. The invention includes a generally hollow barrel that houses a needle hub, which can include a flashback chamber. A needle is affixed to the distal end of the needle hub and is aligned to extend through an opening in the distal end of the barrel. The needle extends through a -catheter hub and catheter affixed to the catheter hub. A spring is disposed in the barrel lumen to cooperate with the needle hub to urge the needle hub toward the proximal end of the barrel. A latch actuator is releasably engaged with the catheter hub. A latch which cooperates with the latch actuator is movable between one position which maintains the needle hub adjacent to the distal end of the barrel and a second position allowing the spring to urge the needle hub to the proximal end of the barrel. A mechanism may be provided to cushion the needle hub as it contacts the proximal end of the barrel by the force of the spring .
Patent CA-2169849-A1 (CA)
Inventor: PESTKA SIDNEY
IPC: A61K48/00
Filed: 1994-08-22
Abstract: This invention relates (a) to a 540 kb YAC which encodes the necessary species-specific factor(s) and is able to substitute for human Chromosome 21 to reconstitute the Hu-IFN-gamma receptor-mediated induction of class I HLA antigens; (b) to the construction of a plasmid to integrate the selective marker for antibiotic G418 resistance into YACs and to delete some of the human DNA fragments from YACs in order to facilitate the manipulation of human genomic DNA in yeast artificial chromosome (YAC) clones; (c) to two fragmentation vectors, pSE1 and pSE2, which contain a neomycin resistance and URA3 gene, developed for targeting yeast artificial chromosomes (YACs) containing human genomic DNA; (d) to a chromosomal fragmentation procedure employed to produce a deletion set of yeast artificial chromosomes (YACs) from a parental YAC (GART D142H8) known to map to Chromosomes 21q and to encode the human interferongamma receptor (Hu-IFN-gamma R) accessory factor gene as well as the phosphoribosylglycinamide formyltransferase (GART) gene; and (e) to the isolation of cDNA clones that encode the necessary species-specific factor and that are able to substitute for human Chromosome 21 to reconstitute the Hu-IFN-gamma receptor-mediated induction of class I HLA antigens.
Patent CA-2174038-A1 (CA)
Title: Method and apparatus for creating abdominal visceral anastomoses
Inventor: COPE CONSTANTIN
IPC: A61B17/11
Filed: 1996-04-12
Abstract: A method and apparatus for creating abdominal visceral anastomoses.  A first magnet is placed within a first viscera and a second, larger magnet is placed within a second viscera.  The magnets each have a raised rim around their perimeters.  The two magnets couple to each other by virtue of their mutual attraction, thereby capturing a portion of the intervening visceral walls between them. The coupling of the magnets is automatically self-centering, as the smaller magnet is forced to rest within the raised rim of the larger magnet.  Additionally, the raised rim of the smaller magnet acts as a fine cutting edge in order to accelerate the process of ischemic necrosis of the tissue captured between the two magnets, thereby forming the anastomosis.  Use of the present invention avoids the need for general anasthesia and a laparotic incision, resulting in fewer surgical and post-surgical complications.
Patent CA-2178235-A1 (CA)
Title: Protective needle cover containment
Inventor: VAN HEUGTEN ANTHONY Y
IPC: A61M25/00
Filed: 1996-06-05
Abstract: An intravenous catheter with a self-locating needle guard.  The intravenous catheter comprises a catheter assembly including a catheter attached to a hollow catheter hub, and an introducer needle assembly. The introducer needle assembly includes a hollow needle with a distal tip, with the needle being affixed near its proximal end to a needle hub, the distal end of which is suitable for engagement with the hollow catheter hub.  The needle has a substantially round diameter outer shape extending along the distal end thereof, and a nonround deformed outer shape at a given distance from the distal end thereof for engaging a needle guard.  The needle guard includes a distal portion having a longitudinal length greater than the given distance and a proximal portion having the same nonround deformed outer shape as the needle to allow the nonround deformed portion of the needle to pass therethrough, but to engage and prevent the round distal end of the needle from passing therethrough.  The needle guard is mounted for relative movement with respect to said needle as the needle is withdrawn from the catheter until the nonround deformed shape of the needle guard engages the round distal portion of the needle, at which position the distal portion of the needle guard extends over and guards the needle tip.  The nonround deformed outer shape of the needle guard also rotationally orients the nonround deformed portion of the needle, and the needle guard further includes a latch mechanism to engage the lumen of the needle to prevent the needle guard from travelling back toward the proximal end of the needle when the latch mechanism is engaged.
Patent CA-2179214-A1 (CA)
Title: Forgeable Nickel Alloy
Inventor: BRILL ULRICH
IPC: C22C19/05
Filed: 1996-06-17
Abstract: This invention relates to a forgeable carbide-strengthened austenitic nickel alloy, consisting of (in % by weight) carbon   0.20  to 0.40  % the quantity of precipitatable carbon C?=Ctot. (cdiss.+Cfix.Ti+Cfix.Nb+Cfix.Zr) being at least 0.083% to 0.300%, chromium       25 to 30,0 %, iron       8  to 11,0 %, aluminium more than 2.4  to 3,0 %, yttrium       0.01 to 0.15 %, titanium      0.01 to 0.20 %, niobium       0.01 to 0.20 %, zirconium     0.01 to 0.10 %, magnesium     0.001 to 0.015 %, calcium       0.001 to 0.010 %, nitrogen      maximum 0.030 %, silicon       maximum 0.50 %, manganese     maximum 0.25 %, phosphorus    maximum 0.020 %, sulphur       maximum 0.010 %, residue nickel, including unavoidable melting-conditioned impurities.  The alloy is suitable for articles having high resistivity to isothermal and cyclic high temperature oxidation, high strength at high temperature and creep rupture strength at temperature up to 1200°C.
Patent CA-2183982-A1 (CA)
Title: Filter-valve for internal combustion engines
Inventor: ELIAS UGALDE PEDRO PIOQUINTO
IPC: B01D46/40
Filed: 1995-02-22
Abstract: The invention relates to improvements to a filter-valve applicable to any type of internal combustion engine, and whose combination and means provide for the filtration of combustion vapors in order to make them pass to the intake manifold of the engine so as to make use of the unburnt fuel, and providing for sufficient ventilation of the crank-case so as to reduce atmospherical contamination. The filter-valve of the invention has a self-cleaning system which avoids carbonization, providing for the return of the lubricant to the cank-case and additionally increasing the power and efficiency of the engine.
Patent CA-2185645-A1 (CA)
Title: Method and apparatus for continuously casting metal
Inventor: LUGINBUHL ERICH
IPC: B65G23/00
Filed: 1995-03-27
Abstract: The present invention provides novel methods and apparatus for continuously casting molten metal in a block caster. In accordance with the present invention, novel track (705) and drive systems (505, 510) are provided for reducing imperfections that can be created in a cast by movement of a beam chain (390) through a casting cycle.
Patent CA-2185787-A1 (CA)
Title: Efficient direct cell replacement fault tolerant architecture supporting completely integrated systems with means for direct communication with system operator
Inventor: NORMAN RICHARD S
IPC: G02F1/133
Filed: 1995-03-22
Abstract: A data processing system containing a monolithic network of cells with sufficient redundancy provided through direct logical replacement of defective cells by spare cells to allow a large mono-lithic array of cells without uncorrectable defects to be organized, where the cells have a variety of useful properties. The data pro-casing system according to the present invention overcomes the chip-size limit and off-chip connection bottlenecks of chip-based architectures, the von Neumann bottleneck of uniprocessor archi-tectures, the memory and 1/0 bottlenecks of parallel processing ar-chitectures, and the input bandwidth bottleneck of high-resolution displays, and supports integration of up to an entire massively par-allel data processing system into a single monolithic entity.
Patent CA-2187625-A1 (CA)
Title: Easily degradable star-block copolymers
Inventor: FORD THOMAS MICHAEL
IPC: C08G63/08
Filed: 1995-03-13
Abstract: Star-bloc copolymers containing polycaprolactone and polylactide blocks of limited molecular weight are tough, easily degradable polymers. Such copolymers, which are noncrystalline and have glass transition temperatures near or below room temperature, are useful in many packaging and other applications.
Patent CA-2188671-A1 (CA)
Title: Polyester/polycarbonate blends having enhanced properties
Inventor: HOFFMANN KURT
IPC: C08L63/00
Filed: 1995-05-17
Abstract: A PES/PC blend having enhanced properties as virgin material and as recyclate comprises a) at least one phosphite, b) at least one sterically hindered phenol, c) at least one compound promoting the reaction of an epoxy resin with a PES/PC blend, and d) at least one difunctional epoxy resin, 0.01 to 10 parts of component c) being used per 100 parts of PES/PC blend.
Patent CA-2190836-A1 (CA)
Inventor: JOHNSON DENNIS F
IPC: H04W28/04
Filed: 1994-09-22
Abstract: A method for communicating data between a central data terminal (120), a plurality of intermediate data terminals (114), a plurality of remote cell nodes (112), and a plurality of network service modules (110), using a plurality of frames with each frame having a plurality of channels. The plurality of intermediate data terminals (114) transmit IDT-synchronization signals to the plurality of remote cell nodes (112) on a first channel of the frame. The plurality of remote cell nodes (112) transmit RCN-synchronization signals to the plurality of network service modules (110) on a second channel of the frame. The network service modules (110) transmit data from a plurality of physical devices, using radio waves, as NSM-packet signals to the plurality of remote cell nodes (112) using a fourth channel of the frame. The plurality of remote cell nodes (112) store the incoming NSM-packet signals and, responsive to a first polling signal transmitted in a third channel of the frame from a particular intermediate data terminal (114), transmit the NSM-packet signals to the intermediate data terminal (114) as RCN-packet signals on a fifth channel of the frame. The intermediate data terminal (114) in turn stores the RCN-packet signals received from the plurality of remote cell nodes (112) and. responsive to a second polling signal transmitted from the central data terminal (120) on a sixth channel of the frame, transmits the RCN-packet signals as an IDT-packet signal on a seventh channel of the frame to the central data terminal (120).
Patent CA-2191702-A1 (CA)
Title: Recording medium, data transmission method and apparatus, and data reproduction method and apparatus
Inventor: TANAKA SHIN-ICHI
IPC: H03M5/14
Filed: 1996-04-01
Abstract: A data transmission apparatus for transmitting an original data has a converter for converting the original data to sequential data codes. The data code is formed by a combination of HIGH level binary codes and LOW level binary codes. The maximum length of continuous binary codes of one level, such as HIGH level, in the data codes is limited to Tmax, e.g., to 14T, in which T  is a unit length representing one binary code, and the minimum length of continuous binary codes of one level, such as HIGH level, in the data codes is limited to Tmin, e.g., 3T. A generator generates a synchronization code. The synchronization code is formed by a combination of HIGH and LOW level binary codes. The synchronization code comprises an identifier having continuous binary codes of one level, such as HIGH level, with a predetermined length 16T  which is 2T greater than Tmax. An inserter inserts the synchronization code intermittently in the sequential data codes.
Patent CA-2193026-A1 (CA)
Title: System and Method for Disaster Recovery in an Open Metering System
Inventor: CORDERY ROBERT A
IPC: G06Q20/34
Filed: 1996-12-16
Abstract: System and method for securely backing up and reliably retrieving vault data in a metering system that includes a host processor operatively coupled to a vault. Whenever a transaction is completed by the vault, the vault cryptographically signs the vault data, including ascending register, descending register and piece count and sends the cryptographically signed vault data to the host processor where it is stored in a data file assigned to the vault. Each storage of the cryptographically signed vault data is indexed to create a historical log of vault transactions. If the vault is lost or damaged so that vault data cannot be retrieved from the vault, the cryptographically signed vault data is retrieved from the host processor data file and verified.
Patent CA-2193747-A1 (CA)
Inventor: WATANABE KOHEI
IPC: A01K61/00
Filed: 1996-12-23
Abstract: Disclosed is a culture rope winding reel having a pair of spaced side panels connected by a rotating shaft, a plurality of partition walls substantially radially projecting from the rotating shaft between the side panels. The invention provides the improvement wherein each of the partition walls has inclined outer edge having a distance from the rotating shaft reducing from opposite end portions attached to the side panels toward a center portion. The inclined outer edge is converged at the center portion to define a central groove adapted to catch a culture rope. In a preferred embodiment, the central groove includes a substantially V-shaped notch defined between the distance-reducing portions of the inclined outer edge, and a central straight-extending groove continuously extending from an inner end of the V-shaped notch toward therotating shaft. The inclined outer edge guides the rope toward the center, causing the rope to be introduced into the notch and then into the central groove for engagement.
Patent CA-2195852-A1 (CA)
Title: Drink container with holder for used concentrate packet
Inventor: ADLER RICHARD S
IPC: B65D33/14
Filed: 1994-07-26
Abstract: The invention is directed to a disposable drinking cup and a disposable packet and holder system. In use, the disposable drinking cup will contain a disposable packet which contains a beverage concentrate. The packet is associated with a packet holder. After a liquid is added to the drinking cup and is allowed to interact with the concentrate, the packet, now used, can be manipulated into the holder by pulling on the pull tab attached to the packet. Before liquid is introduced into the drinking cup, the packet can be enclosed in a removable protective jacket which can be separated by pulling on a pull tab. The drinking cup, packet and holder allows a beverage to be made and the used beverage packet to be removed from the liquid to control the strength of the beverage without wetting fingers and without interfering with drinking the beverage that has been made.
Patent CA-2199921-A1 (CA)
Title: Method and apparatus for stacking and accumulating bags
Inventor: SELLE PAUL
IPC: B65H31/24
Filed: 1997-03-13
Abstract: An apparatus for stacking and accumulating bags is disclosed.  The stacker includes three sets of fingers.  One set of fingers are prestacking fingers and the other two sets are stacking fingers.  The distance the prestacking fingers travel to get into a stacking position, from a rest position, is relatively short.  The stacking fingers travel a single path, that is different from the path the prestacking fingers travel.
Patent CA-2200125-A1 (CA)
Title: Method for Improving Call Completion Rates in Telephony
Inventor: MEUBUS CHARLES
IPC: H04M3/436
Filed: 1997-03-17
Abstract: The method of in-session activation of the present invention gives Telcos the ability to offer callers a menu of call completion services when the call encounters a busy or no-answer condition. It provides in-session activation capability from DTMF and dial-pulse sets enabling callers to activate the services without having to hang up. The method is intended for residential and business end-users with RES, business lines, or PBX lines.     In the preferred embodiment, upon no-answer and busy conditions, an announcement informs the caller that one or more call completion services are available. The call completion services can be accessed by using one or more levels of menu through which the end-user navigates by entering digits. If more than one level of menu is used, experienced users (i.e. power users) can always enter the appropriate sequence of digits and activate the desired service right away without having to listen to the announcements.
Patent CA-2200256-A1 (CA)
Title: Band clamping machine
Inventor: HAMA TAIRA
IPC: B65B13/22
Filed: 1997-03-18
Abstract: The band clamping machine of the present invention is capable of securely, automatically and efficiently clamping a metallic clamping band. The band clamping machine clamps a metallic band having: a band section; a lever capable of reducing inner diameter of the looped band section; and a pair of fixing pieces for holding the lever, comprises: a diameter reduction mechanism having a clamping arm capable of turning down the lever; an arm driving mechanism moving the clamping arm so as to turn down the lever, the arm driving mechanism including: a first mechanism for moving the clamping arm from an initial position to a mid position, and a second mechanism for moving the clamping arm from the mid position to a final position; and a fixing mechanism bending the fixing pieces inward so as to fix the lever at the position between the fixing pieces.
Patent CA-2202219-A1 (CA)
Title: Horizontal sidewall sprinkler
Inventor: RACHIELE SALVATORE S
IPC: A62C31/02
Filed: 1997-04-09
Abstract: The horizontal sidewall sprinkler described in the specification has a sprinkler body with a passage having an outlet and a deflector with a vertical portion supported forwardly of the outlet by a diverging boss at the culmination of frame arms extending from the sprinkler body and a generally horizontal portion with a planar lower surface supported above the vertical portion by integral strips having a reverse curvature. The generally horizontal deflector portion is inclined upwardly from the sprinkler axis at an angle between 0.5 ° and 5 ° and the vertical deflector portion has an opening extending across the width of that portion beneath the planar surface of the horizontal portion. The vertical portion also has a central opening beneath the sprinkler axis with a forwardly directed upwardly inclined tab and two further openings on opposite sides with rearwardly directed tabs to distribute liquid in the region beneath the sprinkler.
Patent CA-2204372-A1 (CA)
Inventor: ROMANO JOSEPH W
IPC: C12N15/09
Filed: 1995-11-01
Abstract: Procédé destiné à déterminer une réplication de virus, dans des cellules humaines, par un rétrovirus humain, à l'aide d'une amplification d'ARN, ce procédé consistant à détecter l'hybridation d'une sonde d'ARN, laquelle s'hybride spécifiquement avec l'ARN épissé et non pas avec l'ARN génomique. Ce procédé permet une détection précoce de la réplication de l'ARN consécutive à l'infection primaire, sans détection du virus ne se répliquant pas.
Patent CA-2204607-A1 (CA)
Title: Prismatic refracting optical array for liquid flat panel crystal display backlight
Inventor: LENGYEL J MICHAEL
IPC: G02F1/1335
Filed: 1995-11-29
Abstract: A prismatic refracting array for a flat panel liquid crystal display (LCD) backlighting device matches a prismatic angle with the critical angle of the exit window and surrounding material, e.g., glass and air. By selecting the prism angle of the refracting array with reference to the critical angle of the exit window and surrounding air, light lost to total internal reflectance within the exit window is substantially eliminated while directing all light output within selected view angles. By better utilizing the available light output from the flat panel backlight device, overall efficiency of the LCD  device is improved.