baber/WOPTO huggingface dataset:
Patent AU-732872-C (AU)
Title: Spatial and temporal control of gene expression using a heat shock protein promoter in combination with local heat
Inventor: MOONEN CHRIT
IPC: A61K48/00
Filed: 1997-08-14
Granted: 2002-02-21
Abstract: The invention provides methods for using local heat to control gene expression. The heat shock protein (hsp) gene promoter is recombined with a selected therapeutic gene and expressed in selected cells. Local controlled heating is used to activate the hsp promoter, for example by using focused ultrasound controlled by MRI.
Patent AU-697256-C (AU)
Title: Predictive split-matrix quantization of spectral parameters for efficient coding of speech
Inventor: LAFLAMME CLAUDE
IPC: G10L19/04
Filed: 1996-04-02
Granted: 2003-01-30
Abstract: The present invention concerns efficient quantization of more than one LPC spectral models per frame in order to enhance the accuracy of the time-varying spectrum representation without compromising on the coding-rate. Such efficient representation of LPC spectral models is advantageous to a number of techniques used for digital encoding of speech and/or audio signals.
Patent CA-2005769-C (CA)
Title: Handling molten materials
Inventor: VAN LAAR JACOBUS
IPC: C21B7/14
Filed: 1989-12-18
Granted: 1996-05-21
Abstract: To diminish cracking due to differential expansion of refractory channels conducting molten materials, eg. in an iron runner or iron trough, lateral pressure is exerted inwardly on the wear lining (2) of such a channel through intermediate layers of permanent lining (3-7).   These may include low friction slide plates (3,4) and at least one layer (3,6) having a high thermal conductivity.   The means (10) exerting the pressure react against an external frame structure (9,13) and are preferably such that the pressure exerted is independent of the degree of expansion of the channel.
Patent CA-2009160-C (CA)
Inventor: HUKUHARA TAKAHITO
IPC: G01N1/00
Filed: 1990-01-25
Granted: 1995-06-13
Abstract: A  particle  detector  for  detecting  particles  of  blood components in an electrolyte employs a minute hole through which a fixed quantity of the material is drawn.  Electrodes inside and outside the detector pass an electric current through the minute hole.   When a particle passes through the hole,  it partially blocks the hole, whereby a sharp change is experienced in the amount of current passing through the electrolyte.  A syringe fluid path in the detector enters the fluid path for the test fluid at right angles thereto.  The inside electrode is disposed in the syringe fluid path near its junction with the fluid path for the test fluid.  A colorimeter is placed in series with the flow of the test fluid to measure the concentration of hemoglobin in the test fluid.  Automated control of the particle detector is provided by a plurality of cams driving a corresponding plurality of pistons.  One of the pistons serves as a syringe for pumping test fluid during a test and for pumping purge fluid for cleanup prior to the next test.   The remaining pistons, with interconnecting chambers, perform valve functions.
Patent CA-2015370-C (CA)
Inventor: LISKA FRANK FRANTISEK
IPC: B27N5/00
Filed: 1990-04-25
Granted: 1998-06-23
Abstract: High quality agglomerated structural boards, lumber and other structural members such as I, U, T, L beams or corrugated plates or moldings are produced from engineered long, thin narrow green wood strands.  Process, in which the parallel alignment of the strands to each other and their original starting orientation are maintained through their transportation, drying, blending, forming and pressing, preventing their intermingling, twisting, warping and breaking.  The application of fungicides, pesticides, fire retarding and other chemicals during the blending process, impregnates or colors the agglomerated structural products throughout their cross section, making the products resistant against rot, insects, fire or aesthetically attractive for architectural applications.
Patent CA-2016627-C (CA)
Title: Proteinase inhibitors, process for the preparation thereof and medicaments containing these
Inventor: DAS RATHINDRA
IPC: A61P7/04
Filed: 1990-05-11
Granted: 2000-08-22
Abstract: A proteinase inhibitor which has the sequence of amino acids 21 to 147 of human bikunin, in which at least one amino acid residue has been replaced by another naturally occurring amino acid. Such proteinase inhibitor is useful in pharmaceutical compositions.
Patent CA-2017818-C (CA)
Title: Metal halide lamp
Inventor: URUSHIHARA AKIRA
IPC: H01J61/82
Filed: 1990-05-30
Granted: 1998-02-24
Abstract: A metal halide lamp of the present invention comprises a luminous tube alone without any outer bulb, the luminous tube containing metal halides such as neodymium halides (NdX3), dysprosium halides (DyX3) and cesium halides (CsX) in a total amount by mole of 1 x 10-6 to 8 x 10-6 mol/cc and the following molar ratios:                 (see fig.I) (see fig.II) as well as rare gas serving as starting auxiliary gas and mercury serving as buffer gas.   This structure permits a predetermined vapor pressure of the metal halides sealed in the luminous tube to be obtained without increasing the wall load, as well as the formation of a metal halide lamp having a long life and good color characteristics.
Patent CA-2018741-C (CA)
Inventor: JACQUES CLAUDE
IPC: C25D7/06
Filed: 1990-06-11
Granted: 1999-02-23
Abstract: Rouleau conducteur de courant, en particulier pour ligne d'électrolyse en continu, comprenant de façon connue en soit un corps (120) en acier, caractérisé par le fait qu'il comprend au moins sur une partie de sa longueur, une frette interne en cuivre (130).
Patent CA-2021801-C (CA)
Title: Double active-fiber optical amplifier having a wide-band signal wavelength
Inventor: GRASSO GIORGIO
IPC: H04B10/29
Filed: 1990-07-23
Granted: 1994-11-22
Abstract: The invention relates to an optical amplifier, in particular for optical  fiber  telecommunication     lines  (1),  operating  with  a transmission  signal  in  a predetermined  wavelength  range,  which amplifier comprises a fluorescent active optical fiber (6)  doped with erbium, having two cores (11 and 12, 101 and 102), one (11, 101) of which is connected to a fiber (4) in which a transmission signal  to  be  amplified  and  a luminous  pumping  energy  are multiplexed,  and  to  an  outgoing  fiber  adapted  to  transmit  the amplified signal, whereas the second core (12,  102)  is optically coupled  to  the  first  core  and  is  capable  of  absorbing  the spontaneous erbium emission which would constitute a noise source, allowing  a  signal  to  be  amplified  in  a  wavelength  range substantially  corresponding  to  the   tolerance  range  of  the commercially available signal laser emitters.
Patent CA-2022528-C (CA)
Title: Snap-in level vial cover
Inventor: GROSZ IMRE
IPC: G01C9/28
Filed: 1990-08-02
Granted: 1996-10-22
Abstract: A snap-in vial cover for retaining a level-indicating vial on the web of a frame includes first and second vial cover members.  The vial cover members are substantially identical in construction.  A vial is adapted for placement within a pair of oppositely disposed notches formed in an opening provided in the web of the frame.  The first and second members are securable to each other for retaining the vial on the web of the frame.
Patent CA-2028083-C (CA)
Title: Apparatus and method for making mineral wool from coal-ash
Inventor: SCHWARB CHARLES HARRY
IPC: C03B37/05
Filed: 1990-10-19
Granted: 1996-01-30
Abstract: An apparatus and method which provides for controlled melting of both components of coal-ash, as well as the melting of selected additives, the melted coal-ash with additive being immediately available to a conventional fiberizing spinner stage. An arc furnace provides a shallow vat for molten pig iron. A first chute allows for introduction of coal-ash into the vat, and a second chute allows for the introduction of selected additives into the vat. The molten pig iron quickly melts any coal-ash and additive entering the vat, and the molten coal-ash/additive thereupon spreads out across the surface of the molten pig iron (the molten pig iron having a much higher specific gravity). In order to ensure that the molten coal-ash/additive has a predetermined fluidity at an adjacent spinner stage, the furnace is provided with a specially structured spout located above the spinner stage. The spout provides a weir to skim melted coal-ash and additive, a dam to block unmelted coal-ash/additive, and a heat reservoir for heating the melted coal-ash/additive.
Patent CA-2028947-C (CA)
Title: Picture coding apparatus
Inventor: MURAKAMI TOKUMICHI
IPC: H04N7/36
Filed: 1990-10-30
Granted: 1994-04-12
Abstract: ABSTRACT OF THE DISCLOSURE    In the invention, a coding controller takes a buffer occupancy at present from a transmission buffer, and first normalized value evaluating means outputs a first normalized value being independent of a video rate and a frame rate for the number of bits per n x QB and second normalized value evaluating means outputs a second normalized value for the number of bits per one frame.  When the number of bits is relatively small, a second quantization characteristics control table is selected in a selector and the coding control every frame is performed.  When the number of bits is large, a first quantization characteristics control table is selected in the selector and the control every n x QB is performed instead of the control every frame and the quantization characteristics control signal is outputted.
Patent CA-2029750-C (CA)
Title: Apparatus for holding and refining of molten aluminum
Inventor: PELTON JOHN F
IPC: C22B9/16
Filed: 1990-11-13
Granted: 1994-11-01
Abstract: The incorporation of a small amount of metal fluoride or fluosilicate into the refractory fibrous insulating board lining of an aluminum refining vessel prevents the infiltration of the internal voids of said lining by molten aluminum.
Patent CA-2033760-C (CA)
Title: Process for the quasi-continuous decaffeination of raw coffee
Inventor: BEN-NASR HEDI
IPC: C07D473/12
Filed: 1991-01-08
Granted: 1997-07-01
Abstract: A process for decaffeinating raw coffee by selective extraction of the caffeine by means of a solvent that is liquid under normal conditions. Raw coffee beans are extracted for between one and several hours by means of a liquid solvent that is comprised of water and that has been saturated with carbon dioxide or other suitable gas or gas mixture at a temperature of between about 20°C and 110°C and a pressure of between about 30 bar and 300 bar.  The pressure atmosphere is reduced abruptly or within a few minutes to a pressure between about 1 bar and 10 bar.  The expanded raw coffee beans are rinsed in the liquid solvent for a period of between a few minutes and two hours.  The raw coffee beans charged with water are dried to bring the minimum water content to that required for subsequent roasting and the decaffeinated and pre-dried raw coffee beans are then roasted, after which the caffeine is selectively separated from the liquid solvent and the caffeine is recovered in pure crystalline form.
Patent CA-2035783-C (CA)
Title: Articles of play for use in the game of catch
Inventor: LEE MIRYOUNG
IPC: A63B43/00
Filed: 1991-02-06
Granted: 1992-04-28
Abstract: ABSTRACT       Articles of play for use with the game of catch including a ball covered with VELCRO like material and a multi-layer catcher's mitt with a front layer also covered in mating VELCRO like material.  The multi-layer mitt includes a rigid concave rear layer, a first intermediate flexible layer, a second intermediate flexible layer, and said front layer of VELCRO like material.
Patent CA-2035845-C (CA)
Title: Constant-amplitude wave combination type amplifier
Inventor: OKUBO NAOFUMI
IPC: H03F3/60
Filed: 1991-02-06
Granted: 1995-06-13
Abstract: A constant-amplitude wave combination type amplifier includes a first amplifier outputting a first amplified output, and a second amplifier outputting a second amplified output.  The constant-amplitude wave combination type amplifier also includes a first constant-amplitude wave generating circuit for combining an input wave and the second amplified output from the second amplifier and for generating a first constant-amplitude wave which is input to the first amplifier, and a second constant-amplitude wave generating circuit for combining the input wave and the first amplified output from the first amplifier and for generating a second constant-amplitude wave.  Further, the constant-amplitude wave combination type amplifier includes a wave combining circuit for combining the first and second constant-amplitude waves and for generating an output wave.
Patent CA-2037326-C (CA)
Title: Communication apparatus for speech signal
Inventor: TAGUCHI TETSU
IPC: G10L19/16
Filed: 1991-02-28
Granted: 1995-11-28
Abstract: Disclosed is a communication apparatus for an input speech signal which calculates linear predictive coefficients of the input speech signal and inversely filters the speech signal by using the linear predictive coefficients in order to flatten the spectral envelope of the input speech signal and produce a predictive residual signal.  A low power frequency component is adaptively removed out of frequency components of the predictive residual signal by using the calculated linear predictive coefficients.  The linear predictive coefficients are converted into a signal having the removed frequency components.   The converted signal and the removed predictive residual signal are combined.  This configuration of the present invention make it possible to faithfully transmit an important speech component including the Formant component without having to increase a data amount of transmitted information, and thereby to provide a communication apparatus for a speech signal which ensures high sound quality.
Patent CA-2038072-C (CA)
Title: Process for forming a folding or separation line in the manufacture of a composite material component
Inventor: BARBAZA FRANCOIS
IPC: C04B35/80
Filed: 1991-03-12
Granted: 1998-07-21
Abstract: A masking is provided along the position of one each folding or separation line (45 1 to 45 6), in order to prevent the infiltration of the matrix material into the  or  each  masked  zone  of  the  preform.    After densification  of   the  preform  by  chemical   vapor deposition  and  removal  of the  masking,  the  or  each masked zone of the preform constitutes a flexible bond integrated to the densified preform.   Advantageously, the masking of the preform is maintained during a first densification phase until the unmasked parts  (40 1 to 40 7) are consolidated.   The masking is then removed to obtain  flexible bonds  integrated to  the consolidated preform, allowing the latter to be brought to a shape corresponding  to  the  component  by  folding  along  the lines corresponding to the flexible bonds, after which the  densification  is  continued.    Alternatively,  the masking   can   be   removed   only   after   the  final densification to obtain a composite  component  having one, or a number, of articulations.
Patent CA-2039551-C (CA)
Inventor: LISIMAQUE GILLES
IPC: G06K19/10
Filed: 1991-04-02
Granted: 1994-10-04
Abstract: 11 CARTE SECURISEE ASSOCIANT UN SUPPORT D'INFORMATIONS A HAUTE DENSITE DE STOCKAGE ET UN MICROCIRCUIT, ET SON UTILISATION DANS UN LECTEUR DE CARTES La carte comporte un support plastique, 1, portant sur au moins sur une partie de sa surface une couche de matériau d'enregistrement, 2, et un microcircuit, 3 inséré dans le support plastique. La sécurisation de la carte est obtenue par l'établissement d'un code identificateur caractéristique de l'association microcircuit/support portant la couche d'enregistrement qui est d'une part mis en mémoire du microcircuit et qui est d'autre part détectable par analyse du support, toute désolidarisation du support et du microcircuit dans lequel a été mis en mémoire le code associé empêchant la vérification par coïncidence des deux codes. L'invention s'applique, notamment, aux cartes à grande densité de stockage. FIGURE 1
Patent CA-2043771-C (CA)
Inventor: ARSENAULT ARMAND
IPC: B63H5/16
Filed: 1991-06-11
Granted: 1994-09-20
Abstract: A propeller guard for an outboard or stern drive motor having increased rigidity and stiffness is disclosed.  The guard comprises an arcuate main spine, a plurality of side ribs and an upright brace.  The spine comprises channel means adapted to engage the leg of the motor and clamping strap means for attachment of the guard to the motor.
Patent CA-2044375-C (CA)
Title: Scum skimming system for circular sedimentation and thickening tanks
Inventor: BRANDKVIST JAN O
IPC: B01D21/06
Filed: 1991-06-12
Granted: 2002-08-13
Abstract: A scum skimming device is disclosed for use in a waste treatment system having a circular sedimentation tank. Such tanks typically have a central waste liquid inlet pipe having inlet ports and an outlet weir around the periphery to maintain the waste liquid level in the tank at a predetermined desired level. The scum skimming device consists of at least one scum skimming blade which is biased into a position partly above and partly below the liquid surface and which sweeps the surface of the tank, the blade being supported from a bottom sludge rake by articulated support posts. The device also consists of a generally helical blade extending to the tank periphery and. being positioned with a portion of the helical blade below the waste liquid level when the tank is in use, and a drive means for rotating the generally helical blade. A trough is provided partially enclosing the helical blade, the trough having an open side at about the liquid level to allow floating scum to enter the trough and encounter the helical blade. In use, the scum skimming blade directs the scum through the trough opening and into contact with the helical blade, and the helical blade is rotated by the drive unit in a manner tending to keep the scum in the trough while moving the scum lengthwise along the trough to a discharge point outside the tank. In a further embodiment, the trough contains a sloped portion rising above the liquid level to allow the liquids to drain from the scum being transported.
Patent CA-2050376-C (CA)
Title: Automation of telephone operator assistance calls
Inventor: DOWDEN DOUGLAS C
IPC: H04M3/42
Filed: 1991-08-30
Granted: 1995-03-14
Abstract: This invention relates to methods and apparatus for automatically processing operator assistance calls. A caller is connected to an automated operator position. The automated position has speech recognition facilities to replace those of an operator, has announcement capabilities to replace those of an operator, and has control means for transmitting and receiving the same set of messages transmitted and received by an operator position. Advantageously, the operator assistance switch has the same interface to an automated position as to an operator position and interacts with the two identically. Since the capabilities of the automated position are limited by its program, the automated position switches a call to an automated position when a situation occurs for which it has not been programmed. Advantageously, a switch need not be specially programmed to communicate with an automated position. Advantageously, new operator assistance services can be provided automatically without rewriting the complex control software of the switch. The invention further relates to the use of automated operator positions for providing spontaneous voice message service wherein a caller converts a call to a message call if the called party does not answer or is busy, and to a method of recognizing a voice specified destination and establishing a call to that destination.
Patent CA-2051269-C (CA)
Inventor: MIKAMI RYUZO
IPC: C08G81/00
Filed: 1991-09-12
Granted: 1999-03-23
Abstract: A graft type silicone-modified polyester forms a base for a surface-protective agent which has excellent water-repellency properties as well as retention of said properties after exposure to the environment.
Patent CA-2056437-C (CA)
Title: Production of virus and purification of viral envelope proteins for vaccine use
Inventor: EWASYSHYN MARY ELIZABETH
IPC: C12P21/00
Filed: 1990-06-28
Granted: 1996-02-06
Abstract: Immunogenic  envelope  glycoproteins  are  produced from enveloped virus,  such as of the paramyxoviridae family,  particularly PIV-3 and RSV,  by culturing the virus  in the  substantial  absence of exogenous serum proteins, isolating the virus from the tissue culture, solubilizing the envelope glycoproteins and isolating the  solubilized  envelope  glycoproteins  by chromatography.
Patent CA-2056940-C (CA)
Title: Exercise device and method of using the same
Inventor: HALL HENRY V
IPC: A63B23/02
Filed: 1991-12-04
Granted: 1995-05-02
Abstract: The present invention is for an exercise device for strengthening the muscles of the lower back and a method for using the same.  The device has hand rails provided which allow the user to vary the relative involvement of muscles of the lower back.  The device has a protrusion with a ridge which supports the pelvic area of the user.  Preferably the contour of the ridge is adjustable to ensure the comfort of the user.      The device preferably has an ankle retaining means which is adjustable and into which the user's ankles can be slidably engaged with a pivotable motion of the body. This simplifies the positioning of the user on the device.
Patent CA-2057871-C (CA)
Title: Wheeled vehicle steering system
Inventor: WILLIAMS DAVID ALLEN
IPC: B62D111/00
Filed: 1990-05-08
Granted: 2001-04-17
Abstract: A wheeled vehicle steering system comprises adjustable steering input means (15); means (17) for generating first electrical control signals proportional to demanded input of the steering means; means ( 19) for steering a vehicle wheel in reponse to said control signals; sensing means (20) for detecting the response of the vehicle; means for producing second electrical signals proportional to said detected response; comparator means (18) for comparing said first and second electrical signals and producing a difference signal from the comparison; and means far steering a vehicle wheel in response to said difference signal. Using a closed loop control strategy can provide increased vehicle response, consistent vehicle handling characteristics over a wide speed range, improved vehicle stability and control.
Patent CA-2058043-C (CA)
Inventor: DELLIS PHILIPPE
IPC: B01J27/13
Filed: 1991-12-18
Granted: 1996-07-23
Abstract: L'invention concerne un procédé de préparation de l'acide adipique par hydrocarboxylation d'acides penténiques, c'est-à-dire par réaction d'eau et d'oxyde de carbone sur au moins un acide penténique. Elle a plus particulièrement pour objet un procédé de préparation de l'acide adipique par hydrocarboxylation d'au moins un acide penténique en présence de rhodium ou d'un composé du rhodium et d'un promoteur iodé, ce procédé étant caractérisé en ce que la réaction est également conduite en présence d'au moins un co-catalyseur choisi dans le groupe constitué par l'iridium, le ruthénium, l'osmium et leurs composés. Le choix d'un tel système catalytique conduit à une activité et une sélectivité en acide adipique améliorées et permet de s'affranchir au moins partiellement des contraintes actuelles de choix du solvant et de teneur en eau.