baber/WOPTO huggingface dataset:
Patent AU-722608-C (AU)
Title: Method and apparatus for optimizing the continuous positive airway pressure for treating obstructive sleep apnea
Inventor: RAPOPORT DAVID M
IPC: A61M16/06
Filed: 1997-02-11
Granted: 2006-09-21
Abstract: In the treatment of obstructive sleep apnea, a method and apparatus are disclosed for detecting obstructive apnea and optimizing the controlled positive pressure to minimize the flow of air from a flow generator while still ensuring that flow limitation in the patient's airway does not occur. In particular, the invention relates to a breathing device and method of use to adjust a controlled positive pressure to the airway of a patient by detecting flow limitation from analysis of an inspiratory flow waveform. Once the presence of flow limitation has been analyzed, the system determines an action to take for adjustment of the controlled positive pressure. The pressure setting is raised, lowered or maintained depending on whether flow limitation has been detected and on the previous actions taken by the system. The preferred breathing apparatus consists of a flow generator, a flow sensor, an analog to digital converter, a microprocessor, and a pressure controller, a patient supply hose, a nasal fitting, and, optionally, a pressure transducer. Using the method of the present invention, the microprocessor adjusts the air pressure in the patient supply hose when flow limitation is detected in the airway of the patient.
Patent CA-2006070-C (CA)
Title: Method and apparatus for driving a liquid crystal display panel
Inventor: YAMAGUCHI HISASHI
IPC: G09G3/36
Filed: 1989-12-20
Granted: 1995-01-24
Abstract: In a driver circuit of direct drive matrix type LCD panel, a quantity of ON-STATE cells (or OFF-STATE cells) displayed on the just previous scan electrode is counted and a quantity of ON-STATE cells (or OFF-STATE cells) to be displayed on a present scan electrode is also counted.  A compensation voltage is generated according to a predetermined relation based on a difference of the two above-counted quantities, and is superposed onto drive voltages of unselected scan electrodes or of each of data electrodes, in a polarity that an undesirable spike voltage induced on unselected cell voltage is cancelled, in synchronization with selection of the present scan electrode.  The compensation voltage may be generated according to a digital difference of the two quantities or to a change in an analog voltage representing the counted quantity.  The above-described relation of the compen-sation voltage versus the counted quantity difference may be proportional or may be given with a predetermined specific relation to meet the panel characteristics.  The compensation voltage may be a flat voltage during the period for selecting the single scan electrode or may be of a spike waveform.  Amplitude of this spike is determined by the above-described predetermined relation.  An irregular panel brightness caused from spike voltages induced from data electrode voltage application is cancelled.
Patent CA-2017722-C (CA)
Title: Resonant frequency-temperature characteristics compensable high frequency circuit elemental device
Inventor: HYUGA TAKEHIRO
IPC: H01B3/12
Filed: 1990-05-29
Granted: 1994-02-01
Abstract: ABSTRACT OF THE DISCLOSURE      High frequency circuit elemental device A high frequency circuit elemental device comprising a casing and a dielectric ceramic mounted in said casing, such as oscillators, said dielectric ceramic being capable of under going order-disorder structural transformation, whereby the temperature coefficient of the resonant frequency of said elemental device can be compensated by heat-treatment of the dielectric ceramic.
Patent CA-2020968-C (CA)
Title: Treatment of liquids
Inventor: BURT DAVID ALAN
IPC: B01D17/02
Filed: 1990-07-11
Granted: 1998-05-19
Abstract: Liquids, specifically liquids containing suspended matter, may be treated by passage through a separator comprising means dividing the container into a first section, intermediate section and third section, with a flat topped weir dividing the first section from the intermediate section.  The width of the flat topped weir is selected so that liquid flow over the weir is laminar.  At least the flat topped portion of the weir is provided with a smooth surface so as to reduce friction and boundary effects which distort the desired flow pattern.  This smooth surface may be constituted by an L-shaped stainless steel plate.  The interior side walls of the container in the vicinity of the flat top of the weir may be coated with a two-part epoxy to provide smooth surfaces.
Patent CA-2024704-C (CA)
Title: Methods and apparatus for evaluating formation characteristics while drilling a borehole through earth formations
Inventor: WRAIGHT PETER
IPC: E21B47/08
Filed: 1990-09-05
Granted: 1995-02-07
Abstract: The MWD methods and MWD apparatus disclosed herein include methods and apparatus for rotating a directionally-responsive radiation sensor having an outwardly-directed response axis in a borehole.  These MWD methods and MWD apparatus further includes methods and apparatus for obtaining a series of successive measurements representative of a geometrical parameter of the borehole as well as a characteristic of the adjacent earth formations as the sensor scans circumferentially-spaced locations on the walls of a borehole interval.  Methods and apparatus are provided for determining the mean of the successive measurements as well as the standard deviation of the successive measurements and then combining these computations for providing output signals that are uniquely corrected in accord with variations in the transverse cross-sectional configuration of the borehole for providing indications representative of the desired formation characteristic as well as indications representative of the borehole configuration.
Patent CA-2032327-C (CA)
Title: Method for manufacturing a spacer for a resin-molded coil, and method for manufacturing a resin-molded coil using the spacer
Inventor: HIRAKAWA KOICHI
IPC: H01F41/12
Filed: 1990-12-14
Granted: 1996-04-02
Abstract: The present invention relates to a method for manufacturing a spacer for a resin-molded coil.  The method includes the steps of discharging a predetermined amount of synthetic resin on a surface of a sheet material and leaving the resin on the surface of the sheet material to cure into a solid state to form a projection made of the resin on the surface of the sheet material.  An apparatus for carrying out the method includes a mounting section for mounting the sheet material, a discharging section for discharging a predetermined amount of synthetic resin onto the sheet material and a solidifying section for solidifying the discharged resin on the sheet material.
Patent CA-2036108-C (CA)
Title: Microwave coupling arrangement
Inventor: MONTE THOMAS D
IPC: H01Q13/24
Filed: 1991-02-11
Granted: 1995-01-10
Abstract: A dual band feed arrangement for a microwave antenna provides microwave communication in a lower band and in a substantially widened upper band to provide simultaneous microwave communication for three signals.  One signal in the lower band propagates between the outer and inner conductors of a coaxial waveguide in the TE11 coaxial mode, and two signals in the upper band propagate in the inner conductor in TE11 circular waveguide mode.  A combiner, having a conically shaped section with a plurality of irises through its sidewall, is coupled to the coaxial waveguide to provide a transformation from the TE11 modes to the HE11 waveguide modes for each of the three signals.  A dielectric rod extends from within the inner conductor and into the horn antenna for propagating the second signal out of and into the antenna.
Patent CA-2051913-C (CA)
Title: Procede et dispositif de transmission d'information sur fibre optique avec detection et/ou localisation d'intrusion
Inventor: AUGE JACQUES
IPC: H04B10/85
Filed: 1991-09-20
Granted: 1999-02-16
Abstract: Comme connu en soi on injecte sur une fibre de liaison (14) une onde principale (OP) porteuse d'information et une onde auxiliaire (OA) choisie pour se coupler plus facilement avec l'extérieur que cette onde principale. Selon l'invention on applique à cette onde auxiliaire une modulation de test dont on mesure la phase (A) sur l'onde (OR) rétrodiffusée par la fibre. L'invention s'applique à la transmission d'informations confidentielles
Patent CA-2052766-C (CA)
Title: Methods and apparatus for maintaining cache integrity whenever a cpu write to rom operation is performed with rom mapped to ram
Inventor: LAM SON HUNG
IPC: G06F12/00
Filed: 1991-10-04
Granted: 1996-01-02
Abstract: Methods  and  Apparatus  for  maintaining  cache integrity in a computing system that includes  a central processing unit (CPU), Random Access Memory (RAM), Read Only Memory (ROM), and a local memory controller for controlling cooperation between said CPU,  RAM and ROM,  wherein said computing system is capable of supporting a ROM mapped to RAM mode of operation, and further wherein said local memory controller, whenever said ROM mapped to RAM mode is enabled, (1)  implements  a  snoop  cycle  to  detect  CPU  write  ROM operations  and,  upon  detecting  such  an  operation,  (2) provides a cache invalidation signal to the CPU.  The CPU utilizes   the   invalidation   signal,   along   with   the invalidation address on the local bus coupling the CPU and memory  controller,  to  invalidate  any  cache  data  entry corresponding to the main memory address targeted by the CPU write ROM operation.  The invalidation takes place while the write operation is in progress.
Patent CA-2055441-C (CA)
Title: Her2 extracellular domain
Inventor: HUDZIAK ROBERT M
IPC: C07K14/71
Filed: 1990-05-18
Granted: 2003-01-07
Abstract: An extracellular portion of the HER2 molecule, essentially free of transmembrane and cytoplasmic portions, which is anti-genic in animals. Isolated DNA encoding the extracellular portion; an expression vector containing the isolated DNA; and a cell containing the expression vector. A process for producing the extracellular domain. A vaccine containing the extracellular do-main.
Patent CA-2069793-C (CA)
Title: Revetement pour moules annulaires de bombage/trempe
Inventor: LESAGE JEAN-LUC
IPC: C03B23/03
Filed: 1992-05-28
Granted: 2004-02-03
Abstract: L'invention consiste en un dispositif de bombage/trempe de feuilles de verre portées à leur tempé- rature de ramollissement en vue de leur bombage et de leur trempe, comportant des moyens de bombage supérieurs, no- tamment une forme pleine supérieure, et un moule annulaire inférieur sur lequel les feuilles de verre se déforment et par rapport auquel le bord desdites feuilles se déplace du fait de la déformation, notamment pas pressage horizontal entre les moyens de bombage supérieurs et le moule infé- rieurs, et des moyens de trempe où les feuilles bombées sont trempées thermiquement à l'air sur le même moule an- nulaire. Ce moule annulaire est conçu de manière à ce que sa surface de contact avec les feuilles de verre au début de leur déformation sur le moule, se situant sur le pour- tour extérieur dudit moule, soit adaptée au déplacement sans marque du verre sur ledit moule et notamment adaptée au pressage, et de manière à ce que, par contre, ladite surface de contact à la fin du déplacement, notamment à la fin du pressage, se situant sur le pourtour intérieur dudit moule soit adaptés à les trempe.
Patent CA-2072116-C (CA)
Title: Shaped articles as obtained from a thermoplastic starch melt
Inventor: COLE EWART THOMAS
IPC: A61L31/00
Filed: 1991-08-19
Granted: 2003-09-23
Abstract: Shaped articles, as obtained from a thermoplastic melt, which melt comprises a medium and a phase, the medium func-tioning as a dispersion medium with respect to the phase, the phase likewise functioning as a disperse phase with respect to the medium, the phase being present in the thermoplastic melt at a concentration sufficient to effect an increase in dissolution of said articles by comparison with the rate of dissolution of articles made from a thermoplastic melt absent said phase, said medium consisting of a melt comprising destructurised starch and said phase comprising at least a hydrophilic material.
Patent CA-2073130-C (CA)
Title: Magnetic flowmeter with fault detection
Inventor: HERWIG JOERG
IPC: G01F1/60
Filed: 1992-07-03
Granted: 2002-01-01
Abstract: A circuit for detecting faults in a magnetic flowmeter system in which an electrically conductive fluid flows which is maintained at a reference potential. The circuit includes at least two electrodes in contact with the fluid. The electrode signals are conducted to the corresponding inputs of a measuring circuit. An alarm circuit is connected ahead of the measuring circuit. A difference in the magnitude of the values (+U S and -U S) of the electrode signals and/or non-symmetries in the noise content of the electrode signals and/or a disturbance in the high frequency signal (U G) in a loop which contains the electrodes and a high frequency producing generator causes an alarm to be activated.
Patent CA-2073189-C (CA)
Title: N-substituted azaheterocyclic carboxylic acids and a pharmaceutical composition
Inventor: SONNEWALD URSULA
IPC: C07D409/06
Filed: 1990-11-22
Granted: 1998-04-07
Abstract: (see fig. I)  (I) (see fig. II) (d) Novel N-substituted azaheterocyclic carboxylic acids and esters thereof in which a substituted alkyl chain forms part of the N-substituent, the compounds thus having general formula (I) wherein Y is (a), (b) or (c) wherein R1 and R2 independently are C3-8 cycloalkyl phenyl or thienyl all of which may be optionally substituted with halogen, trifluoromethyl, C1-6 alkyl or C1-6 alkoxy; s is 1, 2 or 3; X is -CH2-, -O- or (d) wherein R3 is hydrogen or C1-6-alkyl; r is 2, 3 or 4; R4 and R5 each represents hydrogen or may together represent a bond and R6 is OH or C1-8-alkoxy; and pharmaceutically acceptable acid addition salts are potent inhibitors of GABA uptake from the synaptic cleft.
Patent CA-2074304-C (CA)
Inventor: SCHWEICH CYRIL J JR
IPC: A61F2/958
Filed: 1992-07-21
Granted: 1996-11-26
Abstract: A drug delivery catheter with an inflatable blood flow lumen is provided. The drug delivery catheter includes a flexible tubular shaft and an inflatable balloon assembly disposed at the distal end of the shaft. The catheter is inserted into a vessel with the balloon assembly in an un-inflated form. The balloon member is positioned at the treatment site and inflated. The balloon member in an inflated form defines a region or pocket between the balloon assembly and the vessel wall which contains the drug separate from blood flow. Apertures are provided in the balloon assembly to provide the drug to the containment pocket. Blood is allowed to flow through the center of the inflated balloon assembly.
Patent CA-2074313-C (CA)
Title: Air cooled dynamometer vehicle emissions test stand
Inventor: WOLCOTT JOHN H
IPC: G01M17/007
Filed: 1992-07-21
Granted: 1997-07-29
Abstract: An air-cooled eddy current dynamometers for the use in a vehicle emissions test stand application.   The dynamometer housing includes an air inlet manifold for drawing cooling air radially inwardly  into the dynamometer and an  air outlet manifold  permitting the expulsion of heated air tangentially outwardly from the dynamometer.  An end of the dynamometer housing has a plurality of openings therein allowing cooling air   to be drawn axially  inwardly  into the dynamometer housing.   The combination of air flows radially inwardly through the inlet manifold,  axially inwardly through the openings  in the end of  the dynamometer and tangentially outwardly through the outlet manifold significantly increases the cooling of the dynamometer permitting its use in a vehicle test stand application wherein the dynamometer is placed in a recess or pit within the floor of the structure in which the test stand is installed.  In such an installation, the outlet manifold portion of the dynamometer is positioned so that the heated cooling air from the dynamometer is directed tangentially outwardly from the recess or pit in a path that is substantially parallel to and above the surface of the floor in which the test stand is installed.
Patent CA-2076525-C (CA)
Inventor: TROKHAN PAUL D
IPC: D06M13/322
Filed: 1991-04-08
Granted: 1999-01-12
Abstract: Divulgation d'un procédé pour prolonger la durée de vie des courroies de machine à papier, contenant une résine polymère, photosensible, durcie. Ce procédé comprend l'application continue de quantités efficaces de produits chimiques, capables de ralentir la vitesse de dégradation de la résine polymère photosensible à la surface de la courroie, au cours de l'opération de fabrication du papier. De préférence, ces composés chimiques sont des antioxydants qui inhibent ou retardent l'oxydation de la résine durcie et les effets érosifs qui en résultent.
Patent CA-2078539-C (CA)
Title: Process for producing humanized chimera antibody
Inventor: SHITARA KENYA
IPC: C07K16/30
Filed: 1992-09-17
Granted: 2005-08-02
Abstract: A process for the production of humanized chimera antibody, wherein the chimera antibody is produced easily without changing any of the amino acids of its mouse antibody variable region, which comprises the steps of: (1) constructing a cassette vector by inserting a cDNA coding for a heavy chain constant region of human antibody into an expression vector for animal cell use and establishing a cloning site in the upstream region of the heavy chain constant region of said cassette vector for inserting a cDNA which encodes a heavy chain variable region of nonhuman animal antibody; (2) digesting a cDNA coding for the heavy chain variable region of nonhuman animal antibody with restriction enzymes; (3) inserting said cDNA coding for the heavy chain variable region of nonhuman animal antibody into the cassette vector, using a synthetic DNA which comprises a base sequence corresponding to the 5'-end side of said heavy chain constant region of human antibody and a base sequence corresponding to the 3'-end side of said heavy chain variable region of nonhuman animal antibody and is possessed of the restriction enzyme recognition sites on both of its ends, thereby constructing a humanized chimera antibody heavy chain expression vector in which said cDNA coding for the heavy chain constant region of human antibody and said cDNA coding for the heavy chain variable region of nonhuman animal antibody are linked together through said synthetic DNA; (4) constructing a cassette vector by inserting a cDNA coding for a light chain constant region of human antibody into an expression vector for animal cell use and establishing a cloning site in the upstream region of the light chain constant region of said cassette vector for inserting a cDNA which encodes a light chain variable region of nonhuman animal antibody; (5) digesting a cDNA coding for the light chain variable region of nonhuman animal antibody with restriction enzymes; (6) inserting said cDNA coding for a light chain variable region of nonhuman animal antibody into the cassette vector using a synthetic DNA which comprises a base sequence corresponding to the 5'-end side of said light chain constant region of human antibody and a base sequence corresponding to the 3'-end side of said light chain variable region of nonhuman animal antibody and is possessed of the restriction enzyme recognition sites on both of its ends, thereby constructing a humanized chimera antibody light chain expression vector in which said cDNA coding for the light chain constant region of human antibody and said cDNA coding for the light chain variable region of nonhuman animal antibody are linked together through said synthetic DNA; (7) introducing these expression vectors into host cells to obtain a transformant; and (8) culturing said transformant in an appropriate culture medium, thereby allowing the transformant to produce and accumulate a humanized chimera antibody, and collecting said humanized chimera antibody from the resulting culture broth.
Patent CA-2082876-C (CA)
Inventor: BONIFAY REGIS
IPC: B01J38/34
Filed: 1992-11-13
Granted: 2002-12-10
Abstract: Le catalyseur et une partie des fumées de régénération sont prélevés dans le  lit catalytique dense d'un second régénérateur (9) et introduits par gravité dan s un échangeur externe (21) en un point de jonction au-dessous du niveau du lit dense du second régénérateur. L'échange thermique est réalisé dans la partie inférieure de l'échangeur au-dessous du point de jonction. On réalise de l'extrémité inférieure de l'échangeur jusqu'au-dessus du point de jonction u ne zone en lit dense dont le niveau s'établit sensiblement à la hauteur de celu i du lit dense dans le régénérateur et une zone de désengagement (27) des gaz de régénération et du gaz de fluidisation, de volume approprié. Les gaz et fumé es de l'échangeur sont évacués dans la phase fluidisée diluée du second régénérateur par une conduite (28) tandis que le catalyseur est recyclé dans  le lit du premier régénérateur par une conduite (34).   Application à la régénération de catalyseurs de craquage en lit fluide.
Patent CA-2083979-C (CA)
Inventor: SISCO WILLIAM C
IPC: F02B77/00
Filed: 1992-11-27
Granted: 1999-06-15
Abstract: A device 30 for dampening or reducing the torsional and bending vibrations of an engine crankshaft 14 is disclosed.  The crankshaft vibration damper 30 has a central hub 32 surrounded by an inner resilient ring member 36 and an outer inertia ring member 34.   The resilient  member  is  sized  to  dampen  torsional vibrations.  The hub 32 and two ring members 34, 36 are curved radially sufficient to achieve maximum reduction of bending vibrations.
Patent CA-2087636-C (CA)
Inventor: THOMAS THOMAS M
IPC: C05F17/02
Filed: 1993-01-25
Granted: 1996-06-11
Abstract: A mobile machine and process are provided for milling, mixing, wetting and re-forming an initial windrow of vertically layered ingredients used in the pre-wet cycle for producing mushroom compost. In performing these actions, an assembly of toothed drums, rotating in the same direction and arranged along an upwardly and forwardly projecting inclined plane, progressively mills the windrow across its cross-section longitudinally and propels the milled material upwardly and rearwardly so that it drops and mixes to form a vertically blended, transverse product. The product is preferably cross-mixed by auguring it transversely and depositing it at a transfer point, from whence it is elevated and delivered by a conveyor belt, to form a new windrow parallel or co-linear with the initial windrow. Water is sprayed on the ingredients in the course of propelling, auguring and elevating. A generally uniform blending of the ingredients, coupled with aeration and wetting, creates favourable conditions for contained bacteria to work on the material. The procedure is repeated on each new windrow until the pre-wet cycle is complete.
Patent CA-2094650-C (CA)
Title: Apparatus for analyzing depth perception
Inventor: UOMORI KENYA
IPC: A61B3/10
Filed: 1993-04-22
Granted: 1997-04-22
Abstract: An image (C) at a distant point and an image (D) at a close point for generating depth perception of a subject are displayed on an image display monitor (5), and eye movement of the subject at that time is detected by an eye movement detecting portion (2).  A calculating portion (1) removes saccade component by using velocity and acceleration of the detected eye movement and calculates amplitude of vergence eye movement, change in convergence angle and cross-correlation of velocity or acceleration of the left and right eye movement to determine depth perception of the subject.
Patent CA-2097872-C (CA)
Inventor: HARES GEORGE B
IPC: C03C3/078
Filed: 1993-06-07
Granted: 1997-08-12
Abstract: This invention relates to fine glass crystal prepared from lead-free glass compositions.  The glasses consist essentially, in weight percent, of SiO2   54-64          BaO              8-13 Li2O    0-3           SrO            8-13 Na2O    0-6.5         ZnO              5.5-9 K2O     0-7   BaO+SrO+ZnO              22-33 Li2O+Na2O+K2O    8-15 wherein at least two of Li2O, Na2O, and K2O are present and are present in essentially equimolar ratios.