baber/WOPTO huggingface dataset:
Patent CA-2112249-C (CA)
Title: Heat processing apparatus
Inventor: PERRY OPHNEIL HENRY
IPC: B03B9/06
Filed: 1992-06-19
Granted: 2004-05-11
Abstract: Apparatus for heat processing scrap materials, particularly for de-contaminating aluminium can scrap, as shown in the single drawing, has a rotary kiln (10) defining a furnace chamber (12) along which the material is fed; with hot gas circulation means including a duct (32) leading through the chamber from the input end to an enclosure (24) at the output end from which the gases pass back in contra-flow to the material through the furnace chamber itself to return to the input end, the remaining parts of the gas circulation means, typically including an after burner (42) through which the exhausted gases are recirculated, being at the input end of the furnace to provide a compact unitary and readily adaptable construction in which heat losses are minimised.
Patent CA-2112297-C (CA)
Title: Computer simulation of live organ
Inventor: BEAVIN WILLIAM C
IPC: G06F19/00
Filed: 1993-12-23
Granted: 2006-03-14
Abstract: A computer system receives two dimensional slice data of a heart or other organ to be simulated in three dimensions. It also receives chemical composition data of the heart or other organ, and chemical composition data other parts of the body.      These data are put in the computer memory. Then a Voxel View or three dimensional volume rendering program forms images of the organ to be studied. For example, with the heart it generates images of the atria and ventricle. Diagnostic data obtained from a patient conveniently with electrical measurement signals including an electrocardiagram, electromyogram, electroencephalogram, and other diagnostic measured electrical signals obtained from a patient are fed into the system and are placed in computer memory. Physiological data of the patient, including the strength, weakness and other parameters of the organ is also considered diagnostic data and is supplied into the system. This can be done manually with a keyboard or mouse, or may be supplied from a hard disk, a floppy disk or a tape. This is also fed into memory and is used to modify the three dimensional image data of the organ. This data is then synchronized with the electrical signal diagnostic data.      Conveniently the first derivative of the electrical data signal is taken, and P and Q waves determined from the derivative. From this information the organ, including sub-parts, may be simulated. This data may be fed in black and white or preferably in color to a device which shows the organ for visualization, operation simulation, or training.
Patent CA-2112719-C (CA)
Title: Method and means for indicating an appliance condition
Inventor: WUNDERLICH DANIEL F
IPC: D06F58/38
Filed: 1993-12-31
Granted: 1999-07-13
Abstract: A display is provided for indicating changes between first and second operating conditions in an appliance such as a clothes dryer.  A sensing circuit senses changes in operating conditions within the appliance.  A heater is connected to the sensing circuit and is responsive to various signals produced by the sensing circuit to generate heat.  An elongated thermally conductive substrate is mounted adjacent to the heater for receiving and conducting thermal energy produced by the heater.  A layer of thermochromic material overlies the substrate and is capable of changing colors in response to changes in the temperature of the conductive substrate.
Patent CA-2113341-C (CA)
Inventor: KING BRUCE DEXTER
IPC: A01N43/90
Filed: 1992-07-10
Granted: 2005-12-27
Abstract: Post-hatch diseases in poultry caused by Dactylaria gallopava are prevented and treated by exposing the poultry environment to an effective quantity of natamycin.
Patent CA-2115058-C (CA)
Inventor: CARPENTER JAMES B
IPC: G02B6/40
Filed: 1992-07-28
Granted: 2004-05-25
Abstract: A device (10) for splicing multiple optical fibers includes a splice element (18) having two plates with fiber receiving V-grooves formed in the inner surface of one of the plates, and a splice body having a wedge (22) to actuate the splice element by damping the plates together. The splice body includes a jacket (14) and a cap (16), there being a slot (26) in the jacket (14) for receiving the splice element (18) and a cavity adjacent the slot for receiving the wedge (22). The cavity has a camped surface which causes the wedge (22) to move toward the splice element and clamp the plates as the wedge is moved forward on the ramp surface. A tongue (24), formed integrally with the cap (16), is preferably interposed between the wedge (22) and the splice element (18) to prevent deformation of the plates which might result from direct contact between the plates and the wedge (22) as it slides forward. The wedge (22) and tongue (24) advantageously apply the clamping force only at the centre of the splice element, allowing the ends thereof to remain slightly flexed, thereby providing gradual clamping of the fibers which reduces signal loss.
Patent CA-2117931-C (CA)
Title: Adaptive microphone array
Inventor: CEZANNE JUERGEN
IPC: H04R3/00
Filed: 1994-10-12
Granted: 1998-09-15
Abstract: The present invention is directed to a method of apparatus of enhancing the signal-to-noise ratio of a microphone array. The array includes a plurality of microphones and has a directivity pattern which is adjustable based on one or more parameters. The parameters are evaluated so as to realize an angular orientation of a directivity pattern null. This angular orientation of the directivity pattern null reduces microphone array output signal level. Parameter evaluation is performed under a constraint that the null be located within a predetermined region of space. Advantageously, the predetermined region of space is a region from which undesired acoustic energy is expected to impinge upon the array, and the angular orientation of a directivity pattern null substantially aligns with the angular orientation of undesired acoustic energy. Output signals of the array microphones are modified based on one or more evaluated parameters. An array output signal is formed based on modified and unmodified microphone output signals. The evaluation of parameters, the modification of output signals, and the formation of an array output signal may be performed a plurality of times to obtain an adaptive array response. Embodiments of the invention include those having a plurality of directivity patterns corresponding to a plurality of frequency subbands. Illustratively, the array may comprise a plurality of cardioid sensors.
Patent CA-2120445-C (CA)
Title: Flexible board electrical connector
Inventor: YAMAGUCHI TOMISABURO
IPC: H01R12/57
Filed: 1994-03-31
Granted: 2000-10-03
Abstract: A flexible board electrical connector includes a housing having an opening on an upper corner and a plurality of contact channels on the opening; a plurality of contact elements fitted in the contact channels such that spring contact portions thereof exposed in the opening; a pressure member attached to the housing for rotation between a closed position where it is brought into contact with the contact elements and an open position where it is apart from the contact elements; and a pressure edge provided on the pressure member at such a position that when the pressure member is in the open position, it is in a first position outside from a line including the turning center of the pressure member and the contact portion of a contact element and when the pressure member is turned to the closed position, it is moved to a second position inside from the line so that once the pressure member is turned to the closed position, the pressure member is urged to the closed position by reactive forces of the contact portions and the flexible board.
Patent CA-2124729-C (CA)
Title: All natural, starch-based, water resistant corrugating adhesive
Inventor: FANNON JOHN E
IPC: C09J103/12
Filed: 1994-05-31
Granted: 1998-12-08
Abstract: An all natural,  starch-based,  alkaline corrugating adhesive free of formaldehyde and other crosslinking and water resistance additives and having good water resistant properties comprising an aqueous dispersion of a gelatinized carrier starch and a raw ungelatinized starch wherein the carrier starch has a total amylose content of greater than 60% by weight and the gelatinized starch amylose content is at least about 15% by weight of the total starch content in the adhesive.
Patent CA-2131699-C (CA)
Inventor: HIGHLEN JOHN L
IPC: F16L21/02
Filed: 1993-03-29
Granted: 1996-10-01
Abstract: A flexible joint (10) for the connecting and sealing of tubular sections (12, 14) that includes a flexible pad (20) having inner (24) and outer (22) surfaces. A contoured portion (30) extends around the inner surface (24) of the pad (20). The flexible joint (10) further includes a first tubular section (12) having a raised portion (46). The raised portion (46) engages the contoured portion (30) on the inner surface (24) of the pad (20). A second tubular section (14) includes a housing (58). The housing (58) has exterior (60) and interior (62) surfaces. The interior surface (60) of the housing (58) engages the outer surface (22) of the pad (20) for re-taining the pad (20) in a sealing relationship with the first tubular section (12).
Patent CA-2135941-C (CA)
Title: Method for deeply staged combustion
Inventor: KOBAYASHI HISASHI
IPC: F23C99/00
Filed: 1994-11-16
Granted: 2000-01-25
Abstract: A combustion method for carrying out combustion with reduced generation of NOx wherein high velocity fuel and oxidant in a very low substoichiometric ratio are combusted and thereafter secondary oxidant mixes and combusts with the resulting combustion reaction products.
Patent CA-2136395-C (CA)
Inventor: VINSON EDWARD F
IPC: C09K8/52
Filed: 1994-11-22
Granted: 1997-08-19
Abstract: A composition for and method of treating a subterranean hydrocarbon producing formation is provided.  The treatment, when conducted in the presence of ferric ions, prevents the development of insoluble ferric iron-containing compounds and also prevents the development of sludge in heavy crude.
Patent CA-2161062-C (CA)
Title: Preparation of o-substituted hydroxylammonium salts
Inventor: KEIL MICHAEL
IPC: C07C251/40
Filed: 1995-10-20
Granted: 2003-12-16
Abstract: Preparation of O-substituted hydroxylammonium salts of the formula I                    H2NOR x HX       I   where R is a C1-C6-alkyl or C2-C6-allcenyl radical, each of which may be halogen-substituted, and X is chlorine or bromine, by reacting in an integrated process, without isolation of inter-mediates a)  acetone with hydroxylammonium sulfate and sodium hydroxide solution to give acetone oxime; b)  treating the solution of acetone oxime thus obtained with sodium hydroxide solution and completely removing water, c)  reacting the suspension of the acetone oxime Na salt thus ob-tained with alkylating agents at from 0.5 to 15 bar and at up to 140°C to give acetone oxime ethers; and d)  cleaving the acetone oxime ethers with acids HX to give the products I, a homogeneous, nonpolar aprotic solvent being used in all process steps a) to d).
Patent CA-2162130-C (CA)
Title: Method for producing feedstocks of high quality lube base oil from unconverted oil of fuels hydrocracker operating in recycle mode
Inventor: LEE YUN-KIL
IPC: C10G69/10
Filed: 1994-05-16
Granted: 2000-10-03
Abstract: A process method to produce the feedstocks for manufacturing high quality lube base oil of the present invention is utilizing the unconverted oil (UCO), which is produced from a fuels hydrocracker unit, to manufacture the feedstock oils of high quality lube base oil with very high viscosity index and low volatility, in which a portion or all of the unconverted oil from the fuels hydrocracker unit is continuously fed to a second vacuum distillation process unit and the vacuum distillation unit will produce different grades of lube base oil feedstocks with desired viscosity ranges, while this vacuum distillation unit can effectively remove the undesirable polynuclear aromatics and heavy refractory hydrocarbons, which can accumulate in the recycle oil stream and can cause rapid decline in catalyst performance and degradation in product selectivity to the hydrocracker unit in recycle mode.
Patent CA-2166010-C (CA)
Inventor: TRUSTY DENNIS L
IPC: B05B5/16
Filed: 1995-12-22
Granted: 2004-11-23
Abstract: An electrostatic spray system (10) has a support (32) for a liquid container (38), and the high voltage components mounted through isolators (30) for providing electrical insulation relative to a low voltage or grounded support (14). The liquid container (38) is connected to a pump (44) that provides the liquid under pressure, after an electric charge is applied to the liquid on the exterior of the liquid container (38). The liquid container (38) has an open top, and a sprinkler head (54) adds liquid to the liquid container (38). The sprinkler head (54) is mounted on the low voltage support (14), but all high voltage components are electrically isolated from low voltage components to insure there is little current leakage back to ground.
Patent CA-2168883-C (CA)
Title: Polymerization catalysts, their production and use
Inventor: JEJELOWO MOSES OLUKAYODE
IPC: C08F4/642
Filed: 1994-08-03
Granted: 2000-07-04
Abstract: The invention generally relates to a catalyst, particularly a metallocene catalyst and catalyst system useful in the polymerization of olefins into a polymer product. The polymer product has a broad molecular weight distribution, a high molecular weight and a narrow composition distribution and is easily processable.
Patent CA-2181380-C (CA)
Inventor: TIMPERI ARTO
IPC: A01G23/083
Filed: 1996-07-16
Granted: 2006-05-23
Abstract: A tree feeding device of a tree handling machine has a saw (8) for cross-cutting of a tree trunk, a conveying unit (2) for moving the tree trunk, an actuator (4) for positioning the conveying unit (2) well as delimbing blades (6) for delimbing the tree trunk. The conveying unit (2) has a rotatable structure with peripheral, substantially rigid surface adapted to support a continuous contact member, which transmits force between the rotatable structure and the tree trunk. The force acting between the rotatable structure and the tree trunk is adapted to be transmitted directly between the peripheral surface and the continuous contact member of elastic material, which is in direct contact with the peripheral surface and capable of waving freely in relation thereto in a manner determined by the load acting an the elastic material.
Patent CA-2182841-C (CA)
Inventor: YAMAZAKI TAKESHI
IPC: G06F12/08
Filed: 1996-08-07
Granted: 2000-05-16
Abstract: In a multi-processor system including a plurality of processing units each having a cache memory, the processing units each include a synchronization counter for indicating a present synchronization state of the respective processing unit, and a cache state table for holding information regarding the respective entries of the cache memory. The cache state table includes a cache state and a cache synchronization count. The cache state holds the respective cache state used in a cache protocol. The cache synchronization count holds a value of the synchronization counter when an entry is loaded. The cache protocol in the multi-processor system is simplified to realize high-speed processing.
Patent CA-2188981-C (CA)
Inventor: RAIJMAKERS PETRUS HENDRICUS
IPC: A61K31/566
Filed: 1996-10-28
Granted: 2005-01-25
Abstract: The invention relates to a method of isomerisation of equilin or a derivative thereof to delta (8, 9)-dehydro estrone [delta (8, 9)DHE], characterized in that equilin or a derivative thereof is treated with a lithium salt of ethylenediamine or with lithium amide in dimethylsulfoxide.
Patent CA-2191523-C (CA)
Inventor: VETTER GREGORY J
IPC: E05F7/00
Filed: 1996-11-28
Granted: 2001-01-30
Abstract: A window snubber including a flat metal base having means adapted for securing the base against a window frame and/or a window sash, a metal snubber flange integral with the base and extending substantially upright therefrom, and supporting wings integrally formed with the base and the flange, and a method of manufacturing thereof. The flange has a side adapted to engage a window sash and/or a corresponding side of a second window snubber, when the sash is closed relative to a window frame. The supporting wings extend from opposite sides of the flange to integral connections to the base. The flange extends upright substantially along a plane with the flange side adapted to engage a window sash and/or second snubber facing one side relative to the plane, and the wing integral connections to the base extend on the other side relative to the plane. A portion on the top of the flange is bent into the other side relative to the plane.
Patent CA-2193108-C (CA)
Title: Apparatus and method for enhancing printing efficiency to reduce artifacts
Inventor: CHIULLI CARL A
IPC: H04N1/23
Filed: 1995-04-11
Granted: 2000-05-30
Abstract: Apparatus and methods for exposing multilayered thermal imaging media to eliminate "cloud" or "woodgrain" artifacts by proper optimization of the exposing radiation angle of incidence. The exposure angle of incidence is large enough so that all rays with high reflectance loss are paired with equally many with low reflectance loss to increase printing efficiency.
Patent CA-2196498-C (CA)
Inventor: JOSEF MICHAEL J
IPC: D21F7/08
Filed: 1997-01-31
Granted: 2004-11-16
Abstract: A papermaker's fabric includes a system of machine-direction (MD) yarns interwoven with a system of cross-machine direction (CD) yarns. The MD yarns are pairs of a first MD yarn and a second MD yarn.      The first and second MD yarns are of a substantially rectangular cross section having identical width and thickness. The first and second MD yarns of each pair weave side-by-side as a single yarn with the CD yarns through the fabric. The CD yarns are of circular cross section. The fabric has a permeability to air less than 150 cubic feet per minute per square foot at 0.5 inch H20-pressure.
Patent CA-2197678-C (CA)
Title: Methode et appareil pour amincir les extremites de courroie
Inventor: LOTARSKI DAVID A
IPC: B26D3/28
Filed: 1995-08-23
Granted: 2005-11-08
Abstract: Dispositif (120) et procédé destinés à doler une courroie, dans lesquels on utilise un chariot (122) autonome, porteur de lame, sans base de guidage. Ce chariot possède une ou deux paires de rouleaux (124a, 126a, 124b, 126b) délimitant un (des) pincement(s) dans lequel (lesquels) on fait passer une extrémité (125) de courroie à doler. Les rouleaux se resserrent sur l'extrémité de la courroie afin de la retenir fermement, l'un au moins des rouleaux étant entraîné par un bras (138) de manivelle. La rotation des rouleaux fait avancer le chariot par rapport à la courroie et sur la largeur de celle-ci. Lorsque le chariot avance, la courroie (128) passe entre les rouleaux et à travers une lame coupante (134) adjacente à ceux-ci et qui tranche une bande (131) mince dans la partie supérieure de la courroie adjacente à la face supérieure (130) de celle-ci, à partir du reste de la courroie. On utilise une barrière (200) réglable pour varier la largeur de coupe.
Patent CA-2197693-C (CA)
Inventor: TALWAR ASHOK KUMAR
IPC: H04B7/005
Filed: 1997-02-13
Granted: 2003-01-07
Abstract: An apparatus and method for mitigating interference between multiple collocated radio transceivers operating through a common antenna. In a preferredform, the apparatus includes a filter bank containing bandpass filters corresponding to a number of desired operating frequency bands. Each transceiver can be selectively electrically interconnected with the common antenna through an appropriate filter. The filters attenuate out-of-band interference. An adaptive cancellation device is also provided to compare samples of the transmitted and received signals and produce an interference cancellation signal that is substantially equal in amplitude and 180° out of phase with the coherent portions of the compared and received signals.
Patent CA-2205421-C (CA)
Inventor: O'MALLEY MICHAEL
IPC: H04L12/26
Filed: 1995-12-22
Granted: 2000-09-26
Abstract: Faults occurring in a telecommunications system (21) are monitored identifying their time of onset and reporting them to an operator through an interface (16) if they have not cleared within a predetermined interval. Transient faults, which do clear within that interval, are not reported directly, but only if such faults occur more frequently than a predetermined rate. This is determined by establishing a scan interval, and an analysis period equal to a plurality of scan intervals, monitoring the system (21) continuously for the occurrences of faults, and storing their times of occurrence in a store (8). At the end of each scan interval, the number of occurrences of the fault during the analysis period which ends at the end of the scan interval are counted by a counter (11). If the number of occurrences of the fault in the analysis period is equal to or greater than a threshold value selected by user input (16), an alarm indicator (17) is activated. This allows isolated transient faults to be disregarded, allowing the user to concentrate on recurrent intermittent faults.
Patent CA-2208405-C (CA)
Inventor: ERIKSON KENNETH W
IPC: F16H57/12
Filed: 1995-12-08
Granted: 2006-03-14
Abstract: An anti-backlash nut, movable along a rotatable screw. The nut has internal threads complementary to the threads in the screw. The nut has two nut halves movable as a unit and also rotatable relative to each other on the screw. Means are connected to the nut halves to induce their relative rotation on the screw in opposite directions and there are elastomeric friction means between the two halves to limit their relative rotational movement.
Patent CA-2215499-C (CA)
Title: Modified alpha alumina particles
Inventor: GARG AJAY K
IPC: C09K3/14
Filed: 1996-03-13
Granted: 2002-08-27
Abstract: Seeded sol-gel alumina abrasive grits with improved grinding performance incorporating alkali metal oxides selected from rubidium and caesium oxides.
Patent CA-2218665-C (CA)
Inventor: BIAGIOTTI GUGLIELMO
IPC: B65H23/08
Filed: 1996-04-16
Granted: 2005-03-22
Abstract: A device is described for unwinding a reel of web material in order to feed said material to a processing section, comprising a support (1) for the reel (B), an unwinding member and an actuator (21) which applies a pressure on the reel, causing said unwinding member to puss thereon; means are also provided for adjusting the pressure applied to the reel via said unwinding member (17) as a function of the diameter of the reel being unwound, the pressure being reduced as the diameter decreases.
Patent CA-2223214-C (CA)
Title: Apparatus for axially displacing a downhole tool or a tubing string in a well bore
Inventor: HAYNES MICHAEL JONATHON
IPC: E21B23/00
Filed: 1997-11-27
Granted: 2002-08-20
Abstract: An apparatus  for  axially displacing a downhole tool or a tubing string in a well bore equipped with a wellhead,  the downhole tool being supported by a tubing string in the well which includes a telescoping joint to permit the axial displacement of the tool is described.  The apparatus includes a lifting mechanism such as a hydraulic cylinder or a mechanical jack which is connected to a lift rod string.   The lift rod string engages a latch point in the telescoping joint to support the weight of the tubing string and the downhole tool.   The apparatus permits the downhole tool to be displaced within a range constrained by the length of the telescoping joint.  The apparatus further preferably includes a motor for rotating the lift rod string to permit downhole packers or anchors to be released by rotational movement of the tubing string.   The apparatus also preferably includes support legs to bear a portion of the weight of a suspended tubing string in order to reduce tension on the wellhead components.   The advantage is  a simple, light weight, versatile lifting apparatus which is inexpensively manufactured and readily transported from one wellhead to another.