baber/WOPTO huggingface dataset:
Patent CA-2217077-A1 (CA)
Title: Crosstalk suppression in a multipath optical amplifier
Inventor: JAKOBSON PAUL ANTHONY
IPC: H04B10/29
Filed: 1997-09-26
Abstract: A multi-amplification path optical amplifier including a first amplification path for propagating and amplifying a first in-band optical communication signal, including a spectrally selective filter for substantially blocking the propagation and amplification of an out-of-band optical communication signal along the first amplification path, and a second amplification path for propagating and amplifying a second in-band optical communication signal, including a spectrally selective filter for substantially blocking the propagation and amplification of an out-of-band optical communication signal along the second amplification path, wherein the location of the spectrally selective filters in each respective amplification path is selected so that a target noise figure performance and a target output power performance can be obtained from the device.  The spectrally selective insertion losses suppress crosstalk or optical leakage that gives rise to multipath interference, return loss, and self oscillation.
Patent CA-2222986-A1 (CA)
Inventor: MYREEN BERTEL
IPC: F23J1/08
Filed: 1997-04-02
Abstract: The invention relates to a method for essentially complete oxidation of a concentrated liquor (33) containing oxidable organic matter, comprising the following steps performed unter substantial superatmospheric pressure. According to the invention: (a) a feed (12) of the concentrated liquor (33), preheated (30, 31) to a temperature higher than about 10 ~C below the boiling point of water at said superatmospheric pressure, is oxidised (1) essentially completely at a temperature of at least 800 ~C with a gas (13) containing at least 60 per cent by volume of oxygen resulting in a suspension (4) of hot gas and molten slag; (b) the molten slag is separated from the hot gas (5) and dissolved in water (15); and (c) the separated hot gas (5) is quenched (7) to a temperature below 250 ~C with an aqueous liquid (8) and then withdrawn (23).
Patent CA-2225853-A1 (CA)
Title: Poutres et raccords de poutre a armature textile
Inventor: FYFE EDWARD R
IPC: E02D37/00
Filed: 1996-06-11
Abstract: L'invention porte sur un procédé d'application de tissu en fibres à grande résistance destiné à consolider des poutres ainsi que les raccords entre poutres (12) et, soit des plates-formes soutenues (10), soit des colonnes verticales de soutien (14). On pose un tissu fait de fibres de grande résistance, telles que des fibres de verre, de bore ou de carbone, sur le raccord entre une poutre (12) et une plate-forme (10) ou entre une poutre (12) et une colonne de soutien (14) puis l'on imprègne ce tissu d'une résine époxy ou d'une autre matrice de polymère. Il est, en outre, possible d'assujettir le tissu à l'élément de structure au moyen d'adhésifs, d'attaches pour tissu ou de boulons. Cette invention est particulièrement indiquée pour la réhabilitation de ponts, de passages supérieurs d'autoroutes et de structures de parcage, etc., afin d'empêcher la survenue d'une défaillance lors d'un tremblement de terre.
Patent CA-2230318-A1 (CA)
Inventor: BUCHANAN JOHN SCOTT
IPC: C10G11/18
Filed: 1996-08-08
Abstract: Oxides of nitrogen (NOx) emissions from an FCC regenerator (30) are reduced by operating the regenerator in partial CO burn mode and by controlling thermal and catalytic processing of the flue gas. Regeneration operated in partial CO  burn mode produces flue gas with CO and NOx precursors. This flue gas is passed through a transfer line (36) into which air is added through lines (41, 53) to homogeneously convert most NOx precursors to NOx while leaving some CO  unconverted. Downstream catalytic conversion in a catalytic reactor (89) then reduces produced NOx with unconverted CO.
Patent CA-2230679-A1 (CA)
Title: A process for preparing stable, finely divided polymer dispersions
Inventor: ELBERT RAINER
IPC: C08J3/07
Filed: 1998-02-27
Abstract: Stable polymer dispersions with polymer particle sizes of 0.1 to 10 µm are prepared by dissolving a water-in-oil emulsion, comprising a polymer dissolved in an organic solvent which is immiscible with water (organic phase) and an aqueous phase, wherein the viscosity of the organic phase is 1.0 to 20,000 mPas (measured at 25°C), the surface tension between organic and aqueous phase is 0.01 to 30 mN/m, the particle size of the water emulsified in the organic phase is 0.2 to µm and the ratio by volume of organic phase to aqueous phase is in the range 80:20 to 20:80, subjecting this emulsion to a shear process at a shear power of 1 × 10 3 to 1 × 10 8 Watts per cm3, wherein the water-in-oil emulsion is converted into an oil-in-water emulsion.
Patent CA-2231316-A1 (CA)
Title: Process and device for draining a fibrous pulp supension
Inventor: GOMMEL AXEL
IPC: D21F1/78
Filed: 1998-03-05
Abstract: A process for draining a fibrous pulp web is preferably carried out on drum thickeners or disk filters. A suspension to be drained rests against a perforated first face, which is a part of the rotor of the drum thickener or disk filter, is transported from the suspension vat, and then arrives in a thickening region. The thickening region contains a second face, wherein the first and second face have a relative speed in relation to each other. The effectiveness of the thickening can be significantly increased by vacuum zones provided on the drum thickener or disk filter.
Patent CA-2233479-A1 (CA)
Title: A method for forming a non-woven web exhibiting surface energy gradientsand increased caliper
Inventor: RAVAGLIA LUIS EDUARDO FERRAZ D
IPC: A61F5/44
Filed: 1996-09-12
Abstract: The present invention pertains, in a preferred embodiment, to a method for forming a nonwoven web exhibiting a plurality of surface energy gradients. The method includes the steps of: providing a nonwoven web of fibers exhibiting a surface energy, the nonwoven web having a first surface, a second surface, a caliper, and a plurality of fluid passageways placing the first and second surfaces in fluid communication with one another; applying a surface treatment to the first surface of the nonwoven web, the surface treatement having a surface energy less than the surface energy of the fibers of the nonwoven web creating a plurality of surface energy gradients defined by discontinuous, spaced regions which are adapted to exert a force on a fluid contacting the first surface, such that the fluid will be directed toward the fluid passageways for transportation away from the first surface and in the direction of the second surface; and increasing the caliper of the nonwoven web by feeding the nonwoven web betwween a first pressure applicator and a second pressure applicator each having three-dimensional surfaces which at least to a degree are complementary to one another. The nonwoven web is particularly well suited for use as a topsheet on a disposable absorbent article.
Patent CA-2233500-A1 (CA)
Title: Article inventory tracking and control system
Inventor: BRACE THOMAS J
IPC: G06Q10/08
Filed: 1996-09-27
Abstract: An article inventory tracking and control system tracks and controls removal of articles from a secured facility. Exemplary facilities in which the system may be useful include libraries, rental stores and retail stores. Each article is marked with an EAS marker to prevent unauthorized removal. In the system, each user of a facility and each article in the facility is uniquely identifiable. Upon receiving the user and article information, the system queries a central database to ensure that the user is a valid user and that the desired transaction is authorized. A receiving compartment is specifically designed to receive a particular type of article, such as a video or audio cassette.  Sensors in the receiving compartment ensure that the article is properly placed within the receiving compartment. Proper placement of the article within the receiving compartment ensures that the marker is properly re/desensitized, and also ensures that only one transaction on one article can be performed at a time.
Patent CA-2233560-A1 (CA)
Title: Sulfonamide inhibitors of matrix metalloproteinases
Inventor: ORTWINE DANIEL FRED
IPC: C07D405/00
Filed: 1996-10-18
Abstract: Sulfonamide compounds of the following general formula:   (see formula I) are described which are inhibitors of matrix metalloproteinases, particularly stromelysin-1 and gelatinase A (72 kD gelatinase). Also described are methods for the treatment of multiple sclerosis, atherosclerotic plaque rupture, aortic aneurism, heart failure, restenosis, periodontal disease, corneal ulceration, burns, decubital ulcers, chronic ulcers or wounds, cancer metastasis, tumor angiogenesis, arthritis, or other autoimmune or inflammatory disorders dependent upon tissue invasion by leukocytes using the compounds.
Patent CA-2234231-A1 (CA)
Title: Stabilizing formulation for ngf
Inventor: NGUYEN TUE
IPC: A61P43/00
Filed: 1996-10-21
Abstract: Formulations are provided comprising NGF and acetate-containing buffer from pH  5 to 6 that provide enhanced stability of NGF for use in promoting nerve cell growth, repair, survival, differentiation, maturation or function.
Patent CA-2236252-A1 (CA)
Title: Apparatus and method for testing static and kinetic frictional coefficients of a sheet material
Inventor: EUBIG JACEK A
IPC: G01N19/02
Filed: 1998-04-27
Abstract: A  horizontal  plane  frictional  coefficient  testing apparatus and methods are provided which include a substantially horizontal planar platen having two spaced, parallel movable rails.          The rails are actuated by a motor adapted for reversibly raising and  lowering  the  rails  relative  to the  platen.    A  sled  of predetermined weight is also provided having a central body and two pairs of outwardly extending axles, with each pair of axles being of equal length and formed with a wheel at the end thereof.  The wheels of the sled are formed for engagement with the rails and engagement of the wheels with the rails locates the sled generally parallel to the rails.  In operation, a sample of sheet material is fixed to the sled and the sled is placed on the rails, with the rails being in a raised position.   Subsequently, the rails are lowered to gently place the sled onto the platen or a test medium fixed to the platen.  A drive arm is included with the apparatus for pulling the sled relative to the platen at various rates of translation.  A load sensor mounted on the drive arm measures in real time the force applied to the sled during the course of the test.  The data collected by the load sensor is transmitted to a central  processing  unit  which  calculates  the  coefficients  of friction.  A timing mechanism may be provided to monitor the dwell time of the sled on the platen prior to initiation of the tests.          Also, a semi-rigid coupling may be used to connect the sled to the drive arm.
Patent CA-2239727-A1 (CA)
Inventor: BETTIGOLE NEAL H
IPC: E04C3/294
Filed: 1996-12-06
Abstract: An exodermic deck (10) for structural floors including bridge floors, road beds, pedestrian walkways, or the like, comprises a composite structure of a grid component (12) and a top component (14). The grid component (12) is preferably made of steel and includes a plurality of main bearing bars (16) and a plurality of distribution bars (18) oriented perpendicular to the main bearing bars (16). The top component (14) is preferably made from reinforced concrete. The upper portions (25) of either the main bearing bars (16) or the distribution bars (18) are embedded in the reinforced concrete component (14) permitting horizontal shear transfer and creating a composite deck structure (10) which maximizes the use of tensile strength of steel and the compressive strength of concrete. The top sections (25) of the embedded bars (16) have gripping surfaces for effecting mechanical locks between the grid component (12) and the concrete component (14) and increasing the horizontal shear transfer therebetween.
Patent CA-2243050-A1 (CA)
Inventor: SELA URI
IPC: B01D3/00
Filed: 1998-09-01
Abstract: The present invention is a non-intrusive method to determine the flow state or voidage in an apparatus that interacts a gas phase with a liquid phase. The flow state or voidage is determined by relating them to wall vibrations.
Patent CA-2249017-A1 (CA)
Inventor: GREGOROVICH BASIL VOLODYMYR
IPC: B05D7/14
Filed: 1997-04-08
Abstract: A heated substrate is dipped into a fluidized bed containing particles of polymer to coat the substrate. The coating can subsequently be leveled (and cured if thermosetting) by heating the coated substrate above the melting point of the polymer. The process can be employed to provide desirable properties such as corrosion resistance and aesthetic qualities to the substrate, and to apply very thin coatings.
Patent CA-2249111-A1 (CA)
Inventor: RAJEWSKI ROBERT C
IPC: F23M5/04
Filed: 1998-10-02
Abstract: An  incinerator  insulation  fastening  system, comprising, a wall of an incinerator, pins extending from the wall inside the incinerator, each of the pins having plural circumferential ridges along a portion of each pin, plural  refractory  fasteners,  each  refractory  fastener having a flange portion, a wall side and an incinerator side, and an opening through which a pin extends from the wall side to the incinerator side, a spring washer secured about each pin on the incinerator side of the refractory fastener associated with the pin; and insulation secured to the wall between each refractory fastener and the wall.
Patent CA-2249146-A1 (CA)
Inventor: KUSHNIR LAWRENCE M JR
IPC: B60T8/36
Filed: 1998-10-01
Abstract: An access plate which provides entry to a pneumatic braking system for the purpose of overlaying this system with an electronic controlled pneumatic system for a train braking system. This access plate allows entry into ports necessary to make brake applications from an electronic/programmed controlled unit or an equivalent thereof. This access plate has particular utility for accessing 26 porting and is one part of the entire unit that allows access to 26-type equipment for the purpose of overlaying features with an electronic controlled pneumatic braking system. This access plate provides access to porting to allow all of the advantages of electronic controlled braking to take effect such as shorter stopping distances, system performance feedback, and continuous recharging features. The present invention also provides a device on the access plate for accessing the necessary porting involved with doing a single car test within a 26-Type braking arrangement.
Patent CA-2251666-A1 (CA)
Title: Method for analyzing a separation in a deformable structure
Inventor: NEWMAN JOHN W
IPC: G01B9/025
Filed: 1997-04-15
Abstract: A deformable structure is subjected to a plurality of reduced pressures, causing a bulge in the surface of the deformable structure above a separation in the deformable structure. The cross-sectional area of the bulge is measured for each reduced pressure in a plane parallel to the surface of the deformable structure. When the cross-sectional area of the bulge does not increase with a reduction in the pressure, the cross-sectional area of the bulge approximates the area of the separation. The depth of the separation is calculated using the change in cross-sectional area of the bulge per change in pressure.
Patent CA-2251902-A1 (CA)
Inventor: COLE LEONARD COBB
IPC: B23D61/06
Filed: 1998-10-28
Abstract: The disc saw blade has a plurality of arcuate teeth detachably mounted in complementary-shaped arcuate sockets provided in a rim portion around the circumference thereof. Each tooth has a portion butting against a stop, such as a transverse tail stop surface defined by an inward projection of the socket.  The configuration provides a small throw entry gap to reduce the likelihood of sticks being thrown. The teeth preferably are detachably mounted by virtue of a tight fit within the sockets, with no use of fasteners to absorb cutting forces. Keying elements such as a male portion of generally rectangular cross-section extending from the socket into a corresponding female portion in the tooth preferably are used to ensure proper alignment of each tooth relative to the plane of the disc saw blade.  Preferably, the teeth and sockets are parts of concentric circles, the diameter of the teeth preferably being slightly larger than the diameter of the sockets, thereby producing a press fit. An axial pin may be installed in each tooth through a clearance space within the blade, such that the pin contacts the blade when its tooth rotates slightly away from its installed position, to prevent further rotation away from its installed position. An adapter preferably is used to assist in installation of the teeth, the adapter having a body which is rotatable by a driving tool and having pins or the like extending laterally therefrom to engage the tooth such that the tooth rotates with rotation of the adapter.  Preferably, the adapter has an arcuate element secured along one side of its body to ride against a surface of the socket as the tooth is installed, thereby maintaining the tooth in proper engagement with the socket throughout its installation.
Patent CA-2252611-A1 (CA)
Inventor: WULFF W-PETER
IPC: H01R13/26
Filed: 1997-04-15
Abstract: The invention concerns an insulation body (1) on the upper side of which several electrical contact tongues (2) are arranged next to each other in a plane and oriented in the direction of the connection. To protect the contact surface, the plug-side end of the contact tongues (2) is in each case formed as a curved sliding surface (3) for the corresponding contact spring. The insulating body (1) is formed on its plug side with a step-formed offset (4), the transition area between the different levels being formed in the area of the contact tongues (2) to fit their curved sliding surface (3), thus, as a rounded step (5).
Patent CA-2254190-A1 (CA)
Title: Interlocking control barrier systems
Inventor: CHRISTENSEN MARC E
IPC: E04H17/00
Filed: 1998-11-17
Abstract: A barrier system includes discrete movable barriers molded from a resiliently deformable plastic. Each of the barriers includes a housing having opposing front and back walls and opposing triangular shaped sidewalls. The front and back walls extend from a floor and intersect at a rounded top portion. Each barrier includes an interior surface that defines an internal chamber. The internal chamber can be selective filled with a ballast through an opening. Recessed within the front wall and back wall are a plurality of pockets. The pockets form reinforcing ribs which substantially prevent the deflection of front and back wall when the internal chamber is filled with ballast. In contrast, the sidewalls are substantially smooth to enhance bowing thereat when the internal chamber is filled with ballast. Recessed within the floor of each barrier adjacent to each of the sidewalls is a slot. Upstanding legs from an U-shaped connector are received within corresponding slots when sidewalls of adjacent barriers are biased together. The connector thus secures the barriers together.
Patent CA-2254881-A1 (CA)
Title: Poly n-cyclic aromatic ligands bonded to solid supports for removing and concentrating ions from solutions
Inventor: BRUENING RONALD L
IPC: B01J20/26
Filed: 1997-06-24
Abstract: A method and composition for the concentration and removal of desired metal ions from a source solution by contacting the solution with an N-cyclic aromatic hydrocarbon-containing ligand covalently bonded to a solid support through a hydrophilic spacer of the formula SS-A-X-(L)n where SS is a solid support, A is covalent linkage mechanism, X is a hydrophilic spacer grouping, L is an N-cyclic aromatic containing ligand group and n is an integer of 1 to 6. X or L combined will not contain more than two amine nitrogen atoms. There will preferably be at least four N-cyclic groups present of which pyridine, pyrimidine, pyrazine, imidazole, quinoline, isoquinoline, naphthyridine, pyridopyridine, phenanthroline are representative. The desired ions in the source solution are bound to the ligands and are subsequently separated by contacting the ligand containing compound with a smaller volume of a receiving solution that removes the bound ions for recovery in concentrated form in the smaller volume of the receiving solution.
Patent CA-2257680-A1 (CA)
Title: Energy absorbing crash cushion
Inventor: ALBRITTON JAMES R
IPC: E01F15/00
Filed: 1997-06-06
Abstract: Energy absorbing system (20) with one or more energy absorbing assemblies (86) is provided to reduce or eliminate the severity of a collision between a moving motor vehicle and a roadway hazard. Energy absorbing system (20) may be modified for use at a fixed roadside hazard such as the end of concrete barrier (310) or attached to the rear portion of highway service vehicle (22).  Energy absorbing system (20) preferably includes impact attenuator (80) having at least one cutter (106, 108) and at least one energy absorbing element (100) slidably disposed relative to each other. Impact plate (82) is also attached to one end of impact attenuator (80) such that a collision by the motor vehicle with impact plate (82) will result in cutter (106, 108) shearing energy absorbing element (100) to dissipate energy from the impact of the motor vehicle.
Patent CA-2259365-A1 (CA)
Title: Fluorescent lamp
Inventor: HITZSCHKE LOTHAR
IPC: H01J61/78
Filed: 1998-04-16
Abstract: The invention relates to a fluorescent lamp (1), with a tubular discharge vessel (2) filled with inert gas, and a layer of fluorescent material (6), comprising long electrodes (3; 4; 12; 14a-14d) which are positioned parallel to the longitudinal axis of the tubular discharge vessel (2). At least one electrode (3; 4; 12; 14a-14d) is positioned on the internal wall of the discharge vessel (2). Said tubular discharge vessel (2) is sealed at one or both ends with a stopper (8) and by means of soldering (9), so that it is gas-tight. The at least one internal wall electrode (4) also leads outside via said soldering in such a way that it remains gas tight. Alternatively or additionally at least one electrode (16) is positioned inside the wall of the discharge vessel (2). A  maximum of the entire interior diameter can be used as discharge distance, depending on the positioning of the corresponding counter electrode.  High luminance levels are achieved as a result of the large and also constant discharge distance throughout the length of the discharge tube. The lamp is suitable for a pulsed, dielectrically inhibited discharge.
Patent CA-2260596-A1 (CA)
Title: Drive pulley for improved service of engine mounted accessories
Inventor: HARKEY JERRY P
IPC: F01P5/10
Filed: 1999-02-02
Abstract: Coolant pump service in a crowded engine compartment is provided by forming the side wall of the pump drive pulley with a centralized and radially lobed opening which can accommodate the radial arms of the drive hub that are normally connected by screws to the pulley side wall. The drive hub is fixed to the outboard end of the coolant pump drive shaft that extends through the housing of the pump that is removably secured by screws to the block of an internal combustion engine. The pump impeller is mounted on the inboard end of the drive shaft for fluid pumping operation in a coolant-receiving cavity in the coolant circuit of the engine. In the event of interference, which prevents or hampers the removal of the pulley axially from the drive shaft, the hub screws are removed and the pulley is turned into alignment with the lobes of the opening so that the pump housing screws are accessible. These screws are then removed so that the pump can be manually removed from the clearance between the engine and the frame side rail or other interfering component.