baber/WOPTO huggingface dataset:
Patent CA-2040002-C (CA)
Title: Panel edge construction
Inventor: MCCLUNG DUANE G
IPC: A47B95/04
Filed: 1991-04-08
Granted: 2001-02-06
Abstract: This relates to a panel of the type which includes a core covered by veneer and generally relates to a furniture panel. Such panels have a front edge which is contoured and is generally rounded. The panel in question has a generally rounded edge which terminates at the bottom thereof in a low radius portion, i.e., on the order of 2 mm. Because of this very low radius it is virtually impossible to take a single sheet of veneer and wrap it around such a radius. The problem is solved by using two separate veneers, an upper and a lower, and where the low radius edge portion is, machining a channel in the core and filling the channel with a projecting plug which then has the projecting portion thereof machined to provide a smooth continuous surface. Additionally, in order that there may be no demarcation of materials, the plug is formed of the same material as the veneers.
Patent CA-2040367-C (CA)
Title: Antifoulants comprising titanium for thermal cracking processes
Inventor: REED LARRY ELBERT
IPC: C10G9/20
Filed: 1991-04-12
Granted: 1996-08-27
Abstract: The formation of carbon on metals exposed to hydrocarbons in a thermal cracking process is reduced by contacting these metals with an antifoulant selected from the group consisting of a combination of titanium and tin and a combination of titanium and antimony.
Patent CA-2040484-C (CA)
Title: Fiber optic measuring device, rate gyro, navigation and stabilization system, and current sensor
Inventor: LEFEVRE HERVE
IPC: G01C19/72
Filed: 1991-04-15
Granted: 2001-11-20
Abstract: The invention relates to a fiber optic measuring device which can be used for example as a rate gyro.      In this device the variation in a measured parameter engenders a phase difference between two waves. It comprises - a light source, - a SAGNAC ring interferometer (2), - a detector (3), - a phase modulator (4), and - electronic means (7) comprising a processing system (9) furnishing a signal which is a function of the measured parameter and electronic means (12) controlling the phase modulator (4). The control signal far the modulator is the superposition of a first, periodic gating, bias signal .PHI. b(t) with period 2~ and amplitude .PHI. bm, and of a second, staircase, negative-feedback signal .PHI. m(t) synchronized with .PHI. b(t), each step of which has a duration equal to ~ or to one of its sub-multiples, and an amplitude .PHI. s, which is a function of the value of the measured parameter and which falls back to zero when its amplitude exceeds a predetermined value .PHI. mm, .PHI. bm and .PHI. mm being slaved to 2.PHI. bm + .PHI. mm = 2 n.pi. where n is an integer, the response to the singular phase shift introduced during the fall-back of the negative-feedback signal being for this slaving and hence used to keep the gain of the modulation chain constant.
Patent CA-2041373-C (CA)
Title: Vehicle guidance system
Inventor: BROPHEY D GLENN
IPC: E21C35/24
Filed: 1991-04-26
Granted: 1993-11-09
Abstract: ABSTRACT OF THE DISCLOSURE          A control system for guiding a free-steered vehicle such as a dump truck used in a mining environment along a path.  In one preferred embodiment there is a scanning laser directed upwardly to scan a coded reference of retroreflective material mounted above the vehicle on a mine roof.  There is a sensor to detect laser signals retroreflected from the reference, the sensor and laser forming a laser unit.  The vehicle is center-articulated and there is a laser unit on each of the bogeys.  The rear bogey has a dump box and the rear unit is retractably mounted on the underside of the dump box.  The units are connected to a microprocessor to which are relayed signals from the laser sensor and which directs vehicle operations in response thereto.  The coded reference has a central longitudinal guidance strip and on each side there is a set of bar code markers and speed markers.  When travelling in one direction along the path the guidance strip and one of the sets of bar code markers and speed markers provide instructions for guidance of the vehicle and to direct other operations such as dumping.  When travelling in the other direction along the path the guidance strip and the other set of markers provide instructions for the microprocessor.  In another preferred embodiment the path is endless and only one guidance strip and set of markers is required.  Further optional aspects of the system include a microwave based collision avoidance system, and an infrared signal-based remote control system.
Patent CA-2048681-C (CA)
Inventor: KAWAM ANTOINE
IPC: C07F9/00
Filed: 1990-03-02
Granted: 1997-07-08
Abstract: Méthode pour préparer un additif antisudorifique submicronique. La méthode commence par la dissolution d'un mélange de sel renfermant de l'aluminium et d'un stabilisateur stérique dans un solvant. On fait ensuite précipiter le sel antisudorifique dans le stabilisateur stérique. L'additif résultant, de taille submicronique, peut être dispersé dans un véhicule cosmétique ou utilisé autrement.
Patent CA-2058431-C (CA)
Inventor: ROTHMAN ULF
IPC: H01M50/469
Filed: 1990-07-02
Granted: 2000-12-05
Abstract: A method for producing a Li(A1) anode for a lithium battery comprises the steps of pyrometallurgically alloying Li and A1 in inert atmosphere, grinding the formed alloy after cooling to a homogeneous powder, pressing or extruding the powder to an elongated anode element around a current conductive thread, preferably of nickel, and providing the anode element with an enclosure of microporous separator material.
Patent CA-2059002-C (CA)
Title: Asphalt plant with segmented drum and zonal heating
Inventor: SINDELAR ROBERT A
IPC: E01C19/10
Filed: 1992-01-08
Granted: 1995-10-03
Abstract: A blacktop plant has a rotatable cylindrical mixing drum.  The drum is disposed within a chamber which is divided into two chambers by a baffle through which the drum penetrates.  The forward section of the heating chamber preheats the material which is fed into the drum for heating and recovers latent heat from the water vapor in the heating chamber exhaust.  The second chamber has a multiplicity of burners mounted beneath the drum and aligned with the drum axis.  Each heater is partially baffled from adjacent heaters by zonal baffles.  The heaters are rotatively mounted to a frame upon which the heating chamber and drum are mounted and may be rotated to change the angle with which the burner flame impinges upon the drum.  Quadrant plates partition the drum along its axis to form the drum into four equal quadrants.  The quadrant plates have drop slots which allow the material to pass from one quadrant to another.  The material in the drum is heated in counterflow by the combustion gases from the burners in the heating section of the chamber.  The blacktop plant has flat stack scrubber units disposed along the sides of the chamber for cleaning the exhaust gases with counterflowing spray water.  The plant is adapted for mounting on a trailer for movement over the surface to be paved.  The chamber is insulated and allows the use of microwave energy for heating the asphalt and sound energy for cleaning the mixing drum.
Patent CA-2060875-C (CA)
Title: Electric field control devices for high-voltage cable transitions
Inventor: SELSING JORGEN
IPC: H02G15/103
Filed: 1992-02-07
Granted: 1996-05-07
Abstract: An electrical stress control device for solid dielectric cable transitions constructed according to the present invention comprises a metal conductor suitably shaped to achieve an electrical stress control function.  A durable material having a high dielectric strength is applied as a coating to the exposed surfaces of the conductor.  The coating prevents conductive particles or contaminants which may be present in an insulating fluid medium from directly contacting the stress control device.          Even if such particles are attracted to the device, the particles will float at the prevailing electrical potential in the region and will therefore not cause increased electrical stress.  In first and second embodiments of the invention, stress control cones for a joint and a termination, respectively, are formed from modified-cylindrically-shaped metal conductors.  In a third embodiment, a corona shield is formed from a modified-cylindrically-shaped metal conductor.  In some applications, a partially conductive shield layer of the cable is properly terminated in an electrical-stress-reducing configuration by applying a partially conductive sleeve pre-finished in the desired shape to overlap the shield layer.          The pre-finished sleeve avoids the difficult task of suitably finishing the existing cable layer.
Patent CA-2063069-C (CA)
Title: Apparatus for cancelling ghost in imaging device using image signals
Inventor: EBIHARA KAZUYUKI
IPC: H04N5/21
Filed: 1992-03-13
Granted: 1996-12-24
Abstract: A ghosting cancel apparatus which can reduce the circuit scale through the use of a one-line memory to remove ghosting, comprises an A/D conversion circuit, a timing signal generation circuit, a one-line memory, a field number register, a calculation processing circuit, a transversal filter, and a D/A conversion circuit. The timing signal generation circuit supplies ghost cancel reference (GCR) field numbers to the field number register, write enable signal to the one-line memory, and read enable signals to a microprocessor inside the calculation processing apparatus. When the one-line memory receives write enable signals, and extracts GCR basic signals from the transversal filter to store them. When the microprocessor receives the read enable signals, and stores it in the waveform memory inside the calculation processing apparatus. The microprocessor performs calculation processing for compensation signals as a weighting coefficient for the transversal filter and sets and supplies it and as a result, removes ghosting from image signals.
Patent CA-2071016-C (CA)
Title: Method for detecting bovine diarrhoea virus infection nucleotide sequence encoding a protein induced by this virus infection and recombinant proteins and antigens relating thereto
Inventor: VANDENBERGH DANIELLE MARIE HEL
IPC: C12P21/08
Filed: 1992-06-11
Granted: 2007-04-10
Abstract: A method for detecting infection of a blood sample by a bovine diarrhoea virus (BVD). The method comprises a first test for the detection of anti-BVD antibodies and a second test for the detection of viral particles. The tests are characterised in that the anti-p80 antibodies are detected by means of a recombinant antigen comprising the HVD virus protein p80 produced in a eukaryotic host, and in that the presence of viral particles is detected by means of antibodies directed against the BVD virus protein p80, for the detection of persistent viremiae and acute infections by any BVD strain. Also within the scope of the invention is a nucleotide sequence corresponding to the BVD Osloss sequence encoding the non-structural protein p80 and a recombinant protein corresponding to the translation of this nucleotide sequence.
Patent CA-2075687-C (CA)
Title: Packet switch apparatus with per-packet charge assessment
Inventor: BEACHY SHAWN ALAN
IPC: H04L12/56
Filed: 1992-08-10
Granted: 1998-07-07
Abstract: Apparatus and method of operation for transporting data packets between data systems located in telephone local access transport areas and for implementing enhanced services to control operation of a telephone local access transport area switching network to interconnect calling and called parties in accordance with requested ones of the enhanced services. The apparatus is interconnected with the data systems and switching systems and is responsive to receipt of data packets from originating data systems requesting transport of data packets to destination data systems and from switching systems requesting an enhanced service for assessing a charge for use of the apparatus by each received data packet. A central processor accumulates assessed charges incurred by each data system and switching system for data packet use of the apparatus in transmittingtransport data packets to destination data systems and for providing enhanced services to switching systems to control the switching systems to interconnect the calling and called parties in accordance with requested enhanced services to be billed to the telephone local access transport area.
Patent CA-2089718-C (CA)
Inventor: DEBS WILLIAM ERNEST
IPC: F16H61/12
Filed: 1993-02-17
Granted: 1997-02-18
Abstract: An improved adaptive line pressure control which detects the occurrence of run-through and overrides the normal adaptive pressure control in response to a detected run-through condition so that the line pressure during subsequent shifting is increased instead of decreased.  A run-through condition is detected by periodically sampling the transmission speed ratio in the course of the inertia phase of an upshift from a lower speed ratio to an upper speed ratio, and determining the average ratio for the upshift.  If the average ratio is within a reference amount of the normal value (ratio midpoint), the adaptive control is allowed to update the adaptive pressure value in relation to the difference between the measured shift time and a desired shift time.  If the average ratio exceeds the normal value (midpoint) by more than the reference amount, a run-through is detected, and the adaptive pressure amount is increased regardless of the measured shift time.
Patent CA-2090662-C (CA)
Title: Process for the preparation of fluorchlorohydrocarbon-free, low-density polyurethane soft foams and soft elastic polyurethane molding foams and polyisocyanate mixutes modified with urethane groups on diphenylmethane-diisocyanate base
Inventor: HINZ WERNER
IPC: C08G18/48
Filed: 1993-03-01
Granted: 1997-07-08
Abstract: Disclosed is a method for the preparation of FCHC-free polyurethane  soft  (molded)  foam materials with  low density,  by  reacting  (A)  liquid  polyisocyanate mixtures containing bound urethane groups, containing 22 to 30 weight percent of NCO groups, which in turn are prepare by reacting a mixture of diphenylmethane-diisocyanate and polyphenyl-polymethylene-polyisocyanates (raw MDI) with at least one polyoxypropylene-polyoxyethylene-polyol with a functionality between 2.5 and 3.6, a hydroxyl number between 50 and 90 and a polymerized ethylene oxide group concentration ranging from more than 30 to less than 50 weight percent, relative to the weight of the polymerized ethylene oxide and 1,2 propylene oxide  groups,  or  by  reacting  of  4,4' diphenylmethane-diisocyanate (MDI) or an MDI-isomeric mixture with the above-named polyoxypropylene-polyoxyethylene-polyol to form an NCO-group-containing quasi-prepolymer, and diluting this quasi-prepolymer   with   raw-MDI,   with   (B)   higher-molecular polyhydroxyl compounds and, if appropriate, (C) low-molecular chain lengthening and/or cross-linkage promoting materials, in the presence of (D) propellants, (E) catalysts as well as, if appropriate,  (F) auxiliary materials and/or additives. Also disclosed are polyisocyanate mixtures modified with urethane groups (A), which are utilizable for carrying out the above method.
Patent CA-2091677-C (CA)
Title: Process for refining crude material for copper or copper alloy
Inventor: NAKAMURA TAKASHI
IPC: C22B15/14
Filed: 1992-03-25
Granted: 2000-10-24
Abstract: A process for refining a crude material for copper or copper alloy which contains as impurity elements at least one species of Pb, Ni, Sb, S, Bi, and As in combination with at least one species of Sn, Fe, and Zn, which comprises the sequential steps of (1) melting a crude material for copper or copper alloy, (2a) increasing the oxygen concentration in the melt, thereby oxidizing Sn, Fe, and Zn into slag, (this step is carried out if the crude material contains as impurity elements at least one species of Sn, Fe, and Zn) (2b) adding to the melt at least one species selected from the group consisting of Fe, Fe oxide, Mn, and Mn oxide, thereby causing Pb, Ni, Sb, S, Bi, and As in the melt to slag in the form of compound oxide of Fe and/or Mn, (3) removing the thus formed slag from the melt, and (4) subjecting the melt to reduction.
Patent CA-2096388-C (CA)
Title: Dual-position fish lure
Inventor: DWORSKI MICHAEL
IPC: A01K85/08
Filed: 1993-05-17
Granted: 1996-04-02
Abstract: An artificial lure having a body portion of pliable material and a hook portion of rigid material.  Curved portions of the hook extend through a passageway in the body portion generally parallel to the longitudinal axis thereof.  Relative rotation of the hook and body portions changes the configuration of the pliable body, which conforms to the curvature of the portions of the rigid hook within the body passageway.
Patent CA-2100141-C (CA)
Inventor: PADRON AARON
IPC: C10G33/00
Filed: 1993-07-08
Granted: 1999-02-02
Abstract: A method for dehydrating and desalting an oil-in-water emulsion includes the steps of: injecting a demulsifier into the flow to destabilize the emulsion; injecting water to promote desalting; and passing the flow through a mixing pipeline having a length (L) and inside diameter (D) determined as follows:           (see fig. I) (see fig. II) wherein: f - is a Fanning Friction factor ~e - is a density of the emulsion (gm/cc);    Qe - is a flow rate of the emulsion (bbl/day);    µe - is a viscosity of the emulsion (poise);     K - is an instrument constant of a dynamic coalescer;     F - is a rotational speed of the dynamic coalescer (rpm); t - is a mixing time (hr);     D - is the inside diameter of mixing pipeline (inches); and L - is the length of the mixing pipeline (km).
Patent CA-2101027-C (CA)
Title: Active acoustic attenuation and spectral shaping system
Inventor: POPOVICH STEVEN R
IPC: G10K11/178
Filed: 1993-07-21
Granted: 1999-04-06
Abstract: An active acoustic system provides attenuation and spectral shaping of an acoustic wave.  A phase lock loop (304) phase locks to the input acoustic wave (6) and generates (306) a desired signal or tone (308) in given phase relation therewith.  An error signal (44) from an error transducer or microphone (16) is summed (302) with the desired signal (308) and the resultant sum is supplied to the error input (202) of an adaptive filter model (40) which outputs a correction signal (46) to an output transducer or speaker (14) to introduce the canceling and shaping acoustic wave.  In other embodiments, various combinations sum the desired signal (308) with the error signal (44), the model output correction signal (46), and the model input signal (42).  Speaker and error path compensation (146, 318, 320) and feedback compensation (340) is provided.
Patent CA-2103236-C (CA)
Title: System for control of subscriber programmability
Inventor: FREEMAN BRIAN DEAN
IPC: H04M3/22
Filed: 1993-11-16
Granted: 1997-06-17
Abstract: A subscriber-defined call processing program designed for execution in a communications network is subjected to testing procedures which simulate a call processing environment involving the execution of the program. The testing procedures assess the program's fitness for execution in a communications network and compute threshold values of network resource consumption by calls invoking execution of the program so that those calls can be terminated when those threshold values are exceeded in the course of processing those calls in the communications network.
Patent CA-2105040-C (CA)
Inventor: TURNER ROGER D
IPC: H04L12/56
Filed: 1993-08-27
Granted: 1998-04-21
Abstract: Disclosed  are  a method  and  a  system  for  transmitting a message or data packet from a single sender to a plurality, i.e.  a  group of  receivers,  usually  called multicasting, within a conventional unicast transmission network,  i.e.  a network basically not  equipped  to handle  such multicast transmissions, consisting of a plurality of subnetworks. The nodes or gateways connecting the subnetworks maintain tables of multicast receiving stations (or groups of such) and the header of each message includes information defining the groups of the addressed multicast receiving stations.
Patent CA-2105106-C (CA)
Inventor: SETO JIM M N
IPC: H03L7/089
Filed: 1993-08-30
Granted: 1999-11-09
Abstract: A phase locked loop is comprised of a phase-frequency detector for providing to a charge pump up and down pulse signals having pulse widths proportional to phase differences between a pair of signals applied thereto, apparatus for introducing a relative phase difference between a first clock signal and a second signal to provide the pair of signals, the second signal being synchronized with an output signal of the loop, apparatus for providing a third up or down signal to the charge pump offsetting the effect of the introduced phase difference, and apparatus for obtaining a loop control voltage from the charge pump.
Patent CA-2105405-C (CA)
Inventor: TISON MARC
IPC: G09F3/03
Filed: 1993-09-02
Granted: 2002-11-05
Abstract: A plastic tamper-proof sealing plug assembly for use in securely sealing the valve outlet of a pressurized bottle or any other type of container. The tamper-proof assembly has a tubular gasket provided with a central opening, sized to fit into and seal a valve outlet, and a sealing plug element with a plug projecting from it, which is sized to snugly fit into the tubular gasket in order to close the valve outlet. The tamper-proof assembly also has a security seal in the form of a strap that has one end attached to one side of the sealing plug element and also has another free end. The strap projects outwards from the side of the sealing plug element and is long enough to surround the valve. The tamper-proof assembly further has a fastener for irreversibly fastening the free end of the strap to the sealing plug element so that the strap must be broken in order to remove the plug and the gasket if necessary, from the valve outlet. This gives a visible indication to anyone using the bottle that the plug and the gasket have previously been removed or tampered with. This assembly may also consist of a moulded, one-piece tamper-proof assembly where the gasket and the sealing plug element are combined together in a combined gasket and sealing plug element unit.      However, when the gasket and the sealing plug element are moulded into a one-piece tamper-proof assembly, they are separated from one another before they are installed on the valve outlet.
Patent CA-2109745-C (CA)
Inventor: CHOU AN-CHUAN
IPC: B60P7/08
Filed: 1993-11-23
Granted: 1999-06-01
Abstract: A strap locking device includes a strap locker having a plate body with a plurality of projecting-outward ends spaced apart in different directions. Each of projecting-outward ends is formed with a buckle for locking a strap of adjustable length and has its outer end bound on a hook to hook on a hook of a truck or something. The buckle is capable of being substituted by a strap stopper, which has both ends flat to loosely fit in two slots provided in two opposite side walls formed in one of the plural ends of the plate body. The strap stopper has a round intermediate portion to cramp a strap immovable when the strap is pulled tight. One of said ends of the plate body is only provided with a strap slot for strap of preset definite length and with its outer end bound on a hook to pass through and bound on the end.