baber/WOPTO huggingface dataset:
Patent CA-2099841-C (CA)
Title: Expression of recombinant proteins in attenuated bacteria
Inventor: CHARLES IAN G
IPC: A61P31/04
Filed: 1992-03-05
Granted: 2003-02-25
Abstract: An attenuated bacterium which is capable of expressing a heterologous protein, the expression of the heterologous protein being under the control of a promoter whose activity is induced by anaerobic conditions, can be used as a vaccine. A suitable promoter is the nirB promoter.
Patent CA-2110273-C (CA)
Title: Benzimidazole derivatives, their preparation process and their use in the fields of therapeutics and cosmetics
Inventor: ROCHER JEAN-PHILIPPE
IPC: A61K8/00
Filed: 1992-05-29
Granted: 2002-02-12
Abstract: PCT No. PCT/FR92/00482 Sec. 371 Date Jan. 10, 1994 Sec. 102(e) Date Jan. 10, 1994 PCT Filed May 29, 1992 PCT Pub. No. WO92/21663 PCT Pub. Date Dec. 10, 1992.Benzimidazole derivatives having general formula (I), wherein R1 and R2 are a hydrogen atom, a lower alkyl radical, an OR4 radical, a lower fluoroalkyl radical or a halogen atom; R3 is a hydrogen atom, a lower alkyl radical, a halogen, a hydroxyl or a lower alkoxy radical having 1-6 carbon atoms; R4 is a hydrogen atom, a lower alkyl radical, a benzyl radical or a (II) radical, PO3H, SO3H or an aminoacid residue; R7 is a lower alkyl radical, a lower alkoxy radical having 1-6 carbon atoms, a -(CH2)n-COOH radical where n=1-6, or the radical (III), where r' and r'' are a hydrogen atom or a lower alkyl radical, or form, together with the nitrogen atom, a 5 or 6-membered heterocyclic ring optionally interrupted by a heteroatom; R5 and R6 are different and represent the OR8 radical or a mono or polycyclic cycloalkyl radical having 5-12 carbon atoms bound to the phenyl core by a tertiary carbon; R8 is a hydrogen atom, a lower alkyl radical, an acyl radical having 2-7 carbon atoms, a benzyl radical optionally substituted by one or more halogen atoms, or a benzoyl radical; and salts of said compounds obtained by adding a pharmaceutically acceptable acid or base. Said compounds may be used therapeutically, in particular in relation to inflammatory and/or immunoallergic conditions, and cosmetically to provide body and hair care.
Patent CA-2116731-C (CA)
Inventor: BRADEN MICHAEL L
IPC: B01D17/04
Filed: 1994-03-01
Granted: 2005-01-25
Abstract: The invention provides a method of removing emulsified oil from water such as an industrial wastewater stream or of recycling waste oil fluids including dispersed solids and emulsified water. According to the method, the oil-containing water or waste oil is treated with an effective amount of a dispersion of a water-soluble cationic polymer.
Patent CA-2117570-C (CA)
Title: Method for separating a dispersion of particles in liquids into a particle-enriched and a particle-depleted partial stream
Inventor: KOGLIN BERND
IPC: B01D21/26
Filed: 1994-08-24
Granted: 2005-03-15
Abstract: The methods consists in that the suspension is made to flow as the feed stream through a narrow channel or a capillary and partial streams are drawn off from the wall on the periphery of the channel and/or the capillary through openings in the channel wall and/or capillary wall, the cross-section of which is larger than the mean particle cross-section (median value), the particle concentration being enriched in the main stream and diluted in the partial streams compared to the feed stream. The device consists in that several holes and/or (in the case of a channel) two gaps are arranged evenly distributed over the periphery of a pipe or channel in which the main stream is conveyed. The diameter of the holes is between 10% and 90% of the pipe diameter and the gap width between 10% and 30% of the channel width.
Patent CA-2117840-C (CA)
Title: Process and devices for transmitting by means of atm cells informations in the form of distinct entities
Inventor: DANIEL PATRICK
IPC: H04L12/56
Filed: 1994-10-11
Granted: 2004-03-30
Abstract: The method relates to the transmission, by ATM cells, of information supplied in the form of a series of distinct entities, identically structured and each corresponding to a completely independent data item, for a given application. It provides for transmission of each entity by means of cells, the information field of which is identically composed of modules having a fixed position and a fixed size, a first of which constitutes a cell continuity index, a second of which contains entity data to be transmitted and the last of which is established by means of an error detector-corrector code, of the B.C.H.-block type. A device (4), of the sender type, and a device (11), of the receiver type, include the means essential for implementing the method between a source application (1) and a destination application (2) over an ATM network (3). <IMAGE>
Patent CA-2125994-C (CA)
Inventor: WASHBURN ROBERT D
IPC: H05K1/09
Filed: 1993-09-21
Granted: 1997-08-12
Abstract: Unitized multilayer circuit structures including basic substrate insulating layers and dielectric field control layers  having  dielectric  constants  different  from  the dielectric  constant  of  the  basic  substrate  insulating layers.
Patent CA-2136980-C (CA)
Title: Variable inductance current limiting reactor control system for electrostatic precipitator
Inventor: JOHNSTON DAVID F
IPC: B03C3/68
Filed: 1992-03-13
Granted: 1996-12-24
Abstract: A method and apparatus for varying an electrically variable current limiting reactor (VICLR)(16) are provided in coopera-tion with an electrostatic precipitator automatic voltage control system. The inductance of VICLR (16) is varied by altering the DC current in control winding (66) of VICLR (16). A power source (10) connects serially to an inverse parallel SCR1 and SCR2, to VICLR (16), and to a TR set comprising a transformer (18) and rectifier (20) which supply power to precipitator (22). System electrical characteristics on both sides of the TR set are monitored. Computer (40) uses these monitored values to continuously calculate form factor and fractional conduction values. Step-down transformer (60) is connected to solid state relay (62) which is in turn connected to full wave bridge rectifier (64). Rectifier (64) is connected to control winding (66) of VICLR (16). Solid state relay (62) is also connected to computer (40). Solid state relay (62) can be triggered on each half cycle thereby providing DC cur-rent pulses to VICLR (16). The number of pulses supplied to said control winding within a predetermined time span can be al-tered thereby changing the net current in control winding (67) of VICLR (16), and hence, altering the inductance. The number of half cycles applied may be manually altered by an operator or responsive to system operating conditions, including but not limit-ed to, form factor and fractional conduction.
Patent CA-2143231-C (CA)
Title: Dilution flow sleeve for reducing emissions in a gas turbine combustor
Inventor: LOPRINZO ANTHONY J
IPC: F23R3/04
Filed: 1995-02-23
Granted: 2008-01-29
Abstract: Sleeves (28) are circumferentially spaced from one another about the liner of a combustor body (12) of a dry low NO x combustor. The sleeves carry dilution air into the dilution zone. Cooling air is supplied a venturi (20) to cool the venturi and the cooling air flows into the reaction volume. The dilution air sleeves penetrate sufficiently to thoroughly mix the dilution air with the core of hot gases of combustion and, by vorticity effects caused by the flow past the sleeves, thoroughly mix the generally annular flow of cooling air from the venturi with the hot gases of combustion. The thorough mixing of both the cooling air and dilution air inhibits or minimizes the formation of cold areas or streaks within the reaction volume such that CO to CO2 reactions are not quenched, affording reduced CO emissions.
Patent CA-2145748-C (CA)
Title: Method for refining acetic anhydride
Inventor: PINTO VICKY KRAHER
IPC: C07C51/573
Filed: 1993-09-27
Granted: 1998-08-04
Abstract: Disclosed is a continuous method for refining acetic anhydride produced by the reaction of ketene and acetic acid by means of a vacuum distillation system to provide a refined material comprised of at least 99.5 weight percent acetic anhydride, not more than 0.5 weight percent acetic acid and not more than 90 parts per million (ppm) diketene.
Patent CA-2148241-C (CA)
Title: Method for removing excess lens forming material
Inventor: SOYE PAUL J
IPC: G02C7/04
Filed: 1993-11-01
Granted: 1999-01-19
Abstract: Process and apparatus for molding the front and rear surfaces of a contact lens in one step is disclosed. Two mold halves (110, 112) matable to form a contact-lens-shapes cavity and a cavity (119) for e xcess lens forming material surrounding the cavity are provided. The improvement comprises providing the cavity with at least two o penings (121, 132, 133) and producing differential gas pressure across the openings to remove excess lens forming material.
Patent CA-2149961-C (CA)
Title: Combined card and key carrying case and lottery number picker
Inventor: ADELL ROBERT
IPC: G07C15/00
Filed: 1995-05-23
Granted: 1997-11-18
Abstract: A case for cards, keys and numbered disks and for randomly picking lottery numbers. The case is comprised of a platform having a first space for storing a card and disks and a second space for storing a card; a plurality of thin numbered disks stored in the first space; a transparent cover attached to a top and a bottom of the platform for viewing and enclosing the card and disks in the spaces and a chain attached to end portions of the covers for carrying keys. One characterizing feature of the invention is a trap which permits the numbered disks to easily enter but impedes disks inside the trap from leaving the trap. Another characterizing feature is that cards can be placed in the case without disassembly of the case.
Patent CA-2154017-C (CA)
Title: Tunable add/drop optical filtering method and apparatus
Inventor: GLANCE BERNARD
IPC: H04J14/02
Filed: 1995-07-17
Granted: 1999-01-26
Abstract: The present invention includes a tunable add/drop filter that utilizes the unique operational characteristics of a wavelength grating router.  The filter comprises a 1 x N switch, a wavelength grating router (WGR) having a plurality of inputs and outputs, and a multiplexer.  The WGR demultiplexes an incoming wavelength division multiplexed (WDM) signal, providing the frequency components of the WDM signal at different outputs.  The WGR outputs include a set of retain outputs that are coupled directly to the multiplexer and a drop output that is connected to a drop line.  The particular WDM signal frequency component that is provided to the drop output depends directly on the WGR input at which the WDM signal is received.  The 1 x N switch controllably provides the WDM signal to the proper WGR input so that a select frequency is provided at the drop output, which in turn drops the select frequency from the WDM signal.  The undropped signals, as well as any added signals are multiplexed into a new WDM signal by the multiplexer.
Patent CA-2154332-C (CA)
Inventor: MELTER CRAIG H
IPC: A01G3/02
Filed: 1995-07-20
Granted: 1999-06-01
Abstract: A hand pruner including a first handle and a second handle pivotally connected to said first handle, a first cutting blade secured to said second handle, a second cutting blade pivotally connected to said second handle for movement into engagement with said first cutting blade and a link connecting said second blade to said first handle whereby said second blade is pivoted into engagement with said first blade when said first handle is pivoted into engagement with said second handle, the cutting blades being laterally offset to provide a scissors cut and are convertible to an anvil cutting blade by mounting an anvil plate on the second cutting blade.
Patent CA-2156988-C (CA)
Inventor: HATTANDA HIROKATSU
IPC: B22D41/42
Filed: 1995-08-25
Granted: 2001-10-30
Abstract: The object of the present invention is to provide a gas injecting nozzle which is used for pouring liquid metal and which is prevented from being blocked in the course of continuous casting. According to the present invention, a gas injecting nozzle for pouring liquid metal is provided, wherein (a) the nozzle consists of a porous refractory, (b) the circumference of the nozzle is surrounded by a iron shell which has a gas injection pipe, a band-like space (referred to  as  a  gas  pool  hereinafter)  which  extends  along  the circumference of the nozzle perpendicularly to an axis of the nozzle is provided between the porous refractory and the iron shell, and (c) the gas pool is formed as a corrugated-band-like space along at least one portion of the circumference of the nozzle.
Patent CA-2165494-C (CA)
Title: Composition and method for inhibiting coal oxidation
Inventor: ROE DONALD C
IPC: C10L9/00
Filed: 1995-12-18
Granted: 2006-06-20
Abstract: Compositions and a method for inhibiting coal oxidation. Coal oxidation is inhibited by applying an aqueous solution of cationic polymer to coal surfaces which are exposed to air. The compositions are preferably applied to coal as foams.
Patent CA-2166614-C (CA)
Title: Epoxidation catalyst
Inventor: EVANS WAYNE ERROL
IPC: B01J37/02
Filed: 1994-07-06
Granted: 2005-03-22
Abstract: This invention relates to an epoxidation catalyst having improved selectivit y stability which catalyst comprises silver, a promoting amount of alkali metal, a promoting amount of magnesium, a promoting amount of rhenium and, optionally, a promoting amount of rhenium co-promoter selected from sulphur, molybdenum, tungsten, chromium and mixtur es thereof, supported on a carrier comprising at least 85 percent by weight of alpha alumina and from 0.001 to 2 percent by weight (measured as the clement) of magnesium in the form of an oxide.
Patent CA-2169143-C (CA)
Inventor: TOYOSHIMA FUMIYOSHI
IPC: H04M9/00
Filed: 1996-02-08
Granted: 1999-05-11
Abstract: Execution of guide simulation of the button operation is accompanied with not only display of the button operation procedure but also indication of the fact that a key tele-phone is actually used or generation of a tone.  The simula-tion state is first set by the button operation in any of key telephone sets (1-1 to 1-m), and first control information is produced.  A main control unit 10 generates sets an initial state of simulation in accordance with the first control information at a particular key telephone set which has output the first control information.  Second control infor-mation is then supplied to a main control unit 10 by pushing the operation button of the key telephone set, and not only display of the button operation procedure but indication of a lamp or generation of the tone, which are made in the similar manner as a function is actually executed, are carried out in the key telephone set under control of the main control unit 10.  In other words, a user can easily master the button operation by falsely creating the state where the key tele-phone system is used.
Patent CA-2172340-C (CA)
Title: Method of extracting metals from ore material using material bed comminution and tank and heap leaching
Inventor: PATZELT NORBERT
IPC: C22B11/00
Filed: 1996-03-21
Granted: 2008-06-10
Abstract: In this method according to the invention for extracting metals, starting ore material is subjected to material bed comminution in the grinding gap between two rolls and then leached by the addition of leaching fluid. In order to be able to ensure an optimal yield of metals even in the case of greatly differing particles sizes of the comminuted ore material, the comminuted ore material is divided into oversize material and fine material, whereupon oversize material is delivered to a heap leaching and fine material to a tank leaching.
Patent CA-2176811-C (CA)
Inventor: TAI WAI FEI DAVID
IPC: G01N33/53
Filed: 1994-12-09
Granted: 2008-01-29
Abstract: Methods for diagnosis of allergic disease in a patient are provided. Also provided are methods of screening anti-allergy therapeutics and IgE antagonists.
Patent CA-2181245-C (CA)
Title: Demolition tool jaws with replaceable working surfaces
Inventor: RAFN MARK D
IPC: B23D17/00
Filed: 1995-10-06
Granted: 2000-05-16
Abstract: Replaceable blade assembly comprises a holder secured to the jaw and a blade insert which is releasably secured thereto. The holder has a face with an elongated intermediate portion, an inclined end portion adjacent its outer end, a channel extending along the elongated intermediate portion, and a recess in the inclined end portion. The blade insert has a first face for mounting against the face of the holder with an elongated intermediate portion bearing against the elongated intermediate portion of the holder. An inclined end portion adjacent the outer end of the blade insert bears against the inclined end portion of the holder and a spine on the elongated portion seats in the channel of the holder. A projection on the outer end of the blade insert seats in the holder recess and a fastener releasably secures the inner end of the insert to the inner end of the holder.
Patent CA-2182713-C (CA)
Title: Hot melt adhesives for bonding to sensitive areas of the human body
Inventor: PAUL CHARLES W
IPC: A61L15/58
Filed: 1996-08-02
Granted: 2002-07-02
Abstract: A pressure sensitive hot melt adhesive comprising a block copolymer and 60 to 95 parts of a liquid diluent, the adhesive being characterized by a midblock Tg less than -10°C, a G' less than 15 x 104 dynes/cm2 at 10 rad/s, 25°C., a G" of 1 to 6 x 104 dynes/cm2 and a tensile strength greater than 10 psi exhibit superior properties, without the need for any curing operation after cooling.
Patent CA-2191693-C (CA)
Inventor: CHARTRAND DANIEL
IPC: A42B3/32
Filed: 1996-11-29
Granted: 2005-11-08
Abstract: The invention relates to an adjustable helmet having a front shell and a back shell that are movably secured to one another and that comprise engaging members that may be held together by a locking mechanism comprising a cam that pivots about an axis extending in a direction that is substantially parallel to a side portion of the helmet. The locking mechanism of the present invention has the advantage of exerting a compressive force on a substantial portion of the engaging members thereby providing a more solid engagement.      The locking mechanism also has the advantage of being easily replaceable by a conventional mounting screw assembly. The helmet of the present invention is particularly well suited for use in hockey or other like sports.
Patent CA-2198681-C (CA)
Title: Method for producing fat-free and low-fat viscous dressings using inulin
Inventor: JAMES SHERIANNE
IPC: A23L29/244
Filed: 1997-02-27
Granted: 2004-10-26
Abstract: Methods for preparing low-fat and/or fat-free viscous dressings, especially low-fat and/or fat-free mayonnaise products, containing inulin as a fat mimetic are provided. These low-fat and/or fat free viscous dressings generally have excellent organoleptic properties and shelf-stability. The low-fat and/or fat-free viscous dressings are prepared from aqueous xanthan solutions, non-creamy and non-gelled inulin solutions or slurries, and aqueous cooked starch solutions. The aqueous xanthan solution (and sometimes the inulin solution) is exposed to high shear to form a non-gelled premix. The non-gelled premix is then mixed with either (1) the aqueous cooked starch solution (if the inulin is contained in the premix) or (2) the aqueous cooked starch solution and the aqueous non-gelled inulin solution or slurry (if the inulin is not contained in the premix). The mixing with the premix is generally under low shear conditions. The so-produced viscous dressing reaches the desired texture in 3 to 12 days.
Patent CA-2201540-C (CA)
Inventor: VOORBERG DENNIS B
IPC: C04B11/00
Filed: 1997-04-02
Granted: 2003-02-18
Abstract: A landplaster production method includes the steps of providing a supply of particulate gypsum material, drying the gypsum material by passing a stream of heated air thereby as the material is rotated, classifying and separating the dried particles into fines and coarse particles, collecting the suspended fines in a collector, passing the coarse particles to a grinder such as a roller mill for reducing the particles, and mixing the reduced particles with the collected fines for processing into landplaster. The elimination of fines from the feed to the grinder results in significantly greater production by increasing the efficiency of the grinder. Further, the dryer is modified to agitate the dried gypsum material so that it may be more easily introduced into the classifier/separator situated adjacent the drier discharge outlet.
Patent CA-2202613-C (CA)
Inventor: CHU MICHAEL S H
IPC: A61B10/00
Filed: 1995-10-26
Granted: 2006-06-06
Abstract: A biopsy needle device includes an outer cannula (12) having a pointed, tiss ue- penetrating distal end and a side notched stylet (14) located within the cannula (12). The stylet (14) and cannula (12) are axiall y movable with respect to each other. The stylet (14) is constructed from a solid rod having a notch (8) near the distal end. The not ch (8) is bordered in portions along its length by a walled region to at least in part define a protected sample containment space. The stylet (14) includes a pointed, tissue-penetrating distal end. The notch (8) defines a full cylindrical region, and the walled region has a semicircular cross section.
Patent CA-2211272-C (CA)
Inventor: ZIEMEK GERHARD
IPC: H01B7/20
Filed: 1997-07-22
Granted: 2005-06-28
Abstract: A metallic sheath for an electric cable with a ratio of inner diameter Di to outer diameter Do of at least 0.9, comprises a lengthwise welded, annularly or helically shaped corrugated tube whose wall thickness is in a range between 0.005 and 0.009 of the outer diameter, and where the distance p between two neighboring corrugation crests is in a range between 0.08 and 0.12 of the outer diameter.
Patent CA-2214356-C (CA)
Title: Coriolis effect mass flowmeter using concentric rotors
Inventor: LOVING ROGER SCOTT
IPC: G01F1/84
Filed: 1996-03-12
Granted: 2001-05-22
Abstract: A Coriolis flowmeter having an outer rotor (307) positioned within a housing (301) and having a recess coaxial (341) with a center axis of rotation. A  Coriolis rotor (314) is positioned in the recess of the outer rotor and has a center of rotation coaxial with the center axis of rotation. The Coriolis rotor has a plurality of holes (312), each of which extends from the outer periphery of said Coriolis rotor to a center recess of said Coriolis rotor.  The outer rotor has a plurality of holes (309), each of which extends from the outer periphery of the outer rotor to the recess of said outer rotor with at least some of said holes in said outer rotor being aligned with a corresponding one of said plurality of said holes in said Coriolis rotor. A  material inlet (302) extends fluid through holes of both the outer rotor and the Coriolis rotor to a material outlet (304) of the flowmeter. Both rotors rotate about the center axis of rotation when material is received and passes through the holes of the rotors. Coriolis forces generated by the material flowing through the rotor holes and the concurrent rotation of both rotors cause the Coriolis rotor to assume an angular offset from the outer rotor about the center axis of rotation. Sensing coils (323, 324) and magnets (316, 344) generate output signals indicative of the magnitude of the angular offset of the Coriolis rotor and the mass flow rate of the flowing material.
Patent CA-2222332-C (CA)
Title: Complex-contoured tensile bladder
Inventor: POTTER DANIEL R
IPC: A43B21/28
Filed: 1996-05-23
Granted: 2007-09-04
Abstract: A complex-contoured tensile bladder (50) for provid-ing cushioning in a mid-sole (148) of a shoe (140).