baber/WOPTO huggingface dataset:
Patent CA-2017717-A1 (CA)
Inventor: SHIBAHATA YASUJI
IPC: B60K23/04
Filed: 1990-05-29
Abstract: The distribution of drive power produced by a drive power source is controlled in a four-wheel-drive motor vehi-cle having main drive wheels and auxiliary drive wheels. Drive powers produced by the drive power source are inde-pendently regulated and transmitted to left and right auxil-lary drive wheels.  While the drive power distribution ratio between the main and auxiliary drive wheels is maintained at a suitable value, the drive powers are variable distributed between the left and right auxiliary drive wheels by a drive power distribution control system.  The drive power distri-bution control system determines the drive power distribu-tion ratio between the left and right auxiliary drive wheels depending on a detected lateral acceleration exerted to the motor vehicle, and transmits the drive powers to the left and right auxiliary drive wheels according to the determined drive power distribution ratio.
Patent CA-2023697-A1 (CA)
Title: Optical disc
Inventor: ENDOH SOHMEI
IPC: G11B7/24076
Filed: 1990-08-21
Abstract: Abstract of the Disclosure An optical disk including a disk substrate having guide grooves in one of a spiral shape and a concentric shape, and pits formed between adjacent guide grooves according to predetermined information signals such as address information signals, etc.  An optical recording layer is formed in the shape of a thin film on the disk substrate.  The guide grooves have a depth ranging from about .lambda./8 to about .lambda./4 and the pits have a depth ranging from about .lambda./4 to about .lambda./2, where .lambda. is a wavelength of a reproducing light beam.
Patent CA-2024402-A1 (CA)
Title: Sporting and exercising unit
Inventor: LEKHTMAN GREGORY
IPC: A63B25/10
Filed: 1990-08-31
Abstract: ABSTRACT OF THE DISCLOSURE           A  foot  receiving  member  has  a  spring  member detachably attached to the bottom surface thereof.   The spring member includes a top,  arched,  layer and a bottom, arched,  layer and a strap disposed between the two arched layers.  The arched layers are attached, at their ends, to a corresponding end of the strap in such a manner that the spring member will be automatically disassembled under the influence of an extraordinary lateral force.
Patent CA-2024635-A1 (CA)
IPC: G06T19/00
Filed: 1990-09-05
Abstract: ABSTRACT OF THE DISCLOSURE              METHOD AND SYSTEM FOR GENERATION OF      MANUFACTURING PROCESS PLANS           A  method  and  system  are  disclosed  for  the efficient generation of manufacturing process plans.  A visual image of at least a portion of a selected product is captured or generated and displayed on a portion of the video display of a computer system. A library of iconic representations of manufacturing process steps is also displayed, each having a stored textual instruction associated therewith.  By utilizing a graphical pointing device,  the operator may select a location within the visual   image   and   thereafter   select   the   iconic representation of the manufacturing step desired.   In a preferred  embodiment  of  the  present  invention,  the operator may selectively alter the textual instruction utilizing  a known  text  editor.    In  the  depicted embodiment  of  the  present  invention,   the  textual instructions are automatically sequentially numbered and stored for later use by a manufacturing technician during the  manufacturing  process.   The  visual  image  of  the selected product is also altered to include reference numerals   corresponding  to  each  sequentially  numbered textual instruction.
Patent CA-2027814-A1 (CA)
Inventor: UENO RYUJI
IPC: A61P1/16
Filed: 1990-10-17
Abstract: The present invention provides a pharmaceutical composition for treatment of a hepatobiliary disease comprising a 15-ketoprostaglandin compound in association with a pharmaceutically acceptable carrier, diluent or excipient.
Patent CA-2029104-A1 (CA)
Title: Waste disposal method and apparatus
Inventor: MOTOMURA TAKEHIKO
IPC: F23G5/16
Filed: 1990-11-01
Abstract: Waste  is  combusted by an incinerator and  becomes  an ash.   The ash is transferred to a melting furnace to  be  melt therein.   The ash contains unburned carbon and the melting  at the melting furnace is influenced by an amount of the  unburned carbon.    The amount of unburned carbon largely depends  on  a gas  temperature  at an waste inlet of the incinerator  and  an waste  burn-out point in the incinerator.  The  waste  disposal method,   using  the  incinerator  and  the  melting   furnace, comprises  the  steps of detecting the gas temperature  at  the waste inlet of the incinerator, detecting the burn-out point of waste   combustion  in the incinerator,   controlling  a  waste transfer  speed in the incinerator and controlling a flow  rate of  air  fed  into  the incinerator  such  that  the  detected temperature   and  burn-out  point  remain  within   respective predetermined  ranges, which in turn brings the amount  of  the unburned  carbon  remaining  in the ash  to  a  desired  value, whereby the melting at the melting furnace is controlled to  a desired melting.
Patent CA-2029203-A1 (CA)
IPC: E21B47/10
Filed: 1990-11-02
Abstract: ABSTRACT      The effectiveness of vertical and horizontal wells in combination for recovery of viscous oil is increased by injecting a mobility control agent into the horizontal well after breakthrough of a thermal fluid from a vertical well down to the horizontal well.  The area for gravity drainage of oil into the horizontal well is increased, resulting in greater recovery of oil from the horizontal well.
Patent CA-2029345-A1 (CA)
Title: Orthodontic bracket and process for its production
Inventor: ARAKAWA TOSHIHIKO
IPC: A61C7/28
Filed: 1990-11-06
Abstract: ABSTRACT   An orthodontic bracket made of a translucent alumina ceramic containing at least 99.9% by weight of alumina and composed of crystals having an average grain size of from 1.8 to 3.0 µm, wherein the transmittance of light with a wavelength of 600 nm passing through a sample thereof having a thickness of 1 mm is at least 5%, and the flexural strength is at least 50kg/mm2.
Patent CA-2029777-A1 (CA)
Inventor: GUILLEROT JEAN-CLAUDE
IPC: G01S7/292
Filed: 1990-11-13
Abstract: 13 RADAR DOPPLER POUR LA DETECTION ET LA LOCALISATION D'HELICOPTERES Ce radar Doppler pour la détection et la localisation d'hélicoptères grâce aux éclairs de pale fonctionne dans une bande située entre 300 MHz et 20 GHz et repère les éclairs de pale par la largeur de leur spectre de fréquence et leur durée. Il utilise en réception une antenne multilobe associée à plusieurs chaînes parallèles de traitement de signal spécialisées dans la détection d'hélicoptères permettant une détection sur un domaine élargi et une localisation précise. Chaque chaîne comporte un détecteur amplitude phase DAP (10, 10') suivi d'un filtre Doppler VCM (20, 20') sélectionnant les échos à large spectre de fréquence, d'un circuit de calcul de module (30, 30'), d'un circuit de contraste (40, 40') éliminant les échos trop longs, d'un circuit à seuil (50, 50') et d'un circuit de réduction de fausse alarme RFA (60, 60') éliminant les échos trop courts. Les chaînes conduisent à un circuit de calcul de gisement (100) effectuant des écartométries lorsque cela est possible. FIGURE 4.
Patent CA-2030692-A1 (CA)
Inventor: JUAN REYNALDO A
IPC: A47D5/00
Filed: 1990-11-27
Abstract: ABSTRACT OF THE DISCLOSURE          An  infant  carrier adapted to receive and retain an  infant and to allow for efficient changing and cleaning of an infant  is disclosed.  Such  changing and cleaning requires that the  Infant carrier  provides  unobstructed  access to the anal  and  genital areas.  Access thereto is gained through closable openings in the carrier  in the anal and genital regions.  The carrier keeps  the infant in an ideal position and precludes the infant's legs  from obstructing the changing or cleaning.  Furthermore, the infant is not moved from the carrier for such cleaning or changing.
Patent CA-2030966-A1 (CA)
Title: Fluorinated thermoplastic elastomers containing polymeric additives and process for preparing such elastomers
Inventor: REES RICHARD W
IPC: C08L27/12
Filed: 1990-11-30
Abstract: TITLE IMPROVED FLUORINATED THERMOPLASTIC ELASTOMERS CONTAINING POLYMERIC ADDITIVES AND PROCESS FOR            PREPARING SUCH ELASTOMERS               ABSTRACT OF THE DISCLOSURE New blends of fluorinated thermoplastic elastomers are disclosed that contain a two-phase composition including a continuous phase of a melt processible crystalline thermoplastic fluorocarbon resin and a dispersed phase of an amorphous crosslinked fluoroelastomer, and a dispersion-process-produced, non-fibrillating, non-melt-processible polytetrafluoroethylene (PTFE) powder.  The PTFE copolymer is made up of recurring units of hexafluoropropylene, perfluoro(alkyl vinyl ether) wherein the alkyl group has 1-4 carbon atoms, and mixtures thereof.  The PTFE compounds uniformly with the two-phase composition without forming visible agglomerates.  Poly(phenylene sulfide) powder can be added to the blend to increase melt flow characteristics.  Additionally, an uncured fluoroelastomer can be incorporated into the blend to enhance its mechanical properties.  The preparation of the fluorinated thermoplastic elastomers involves dynamic curing of the fluoroelastomer in the presence of the molten thermoplastic fluorocarbon resin and the non-melt-processible PTFE resin.
Patent CA-2032848-A1 (CA)
Inventor: MILLER ROBERT R II
IPC: H04R3/00
Filed: 1990-12-20
Abstract: Abstract of the Disclosure An automatic calibration system for a second-order gradient microphone is provided to ensure optimum sensitivity balance between a pair of first-order gradient microphones mounted in a housing and forming the second-order gradient microphone. Automatic calibration is achieved through use of a transducer also mounted in the housing and located equidistanct acoustically between the two first-order gradient microphones. Under the control of a computer, the transducer is directed to generated sound pressure which is used to calibrate the gain of amplifiers respectively associated with each one of the first-order gradient microphones for obtaining maximum directional sensivity for a second-order directional response pattern. Such a system not only allows the use of inexpensive, non-matched microphones, but also obviates the need for factory calibration. Since the system is configurable to optimize itself automatically prior to use, calibration may be maintained regardless of aging, environmental stresses and parts replacement.
Patent CA-2033818-A1 (CA)
Title: Process for supplying power to a resistor, circuity therefor and uses thereof
Inventor: MOREAU CHRISTIAN
IPC: H05B3/58
Filed: 1991-01-09
Abstract: The invention relates to a system for processing an electrical power supply signal for a resistive heating element. The circuit provided comprises an a.c. current source, a rectifier and a chopper for supplying the resistive element with a current having two superimposed components one being d.c. and the other being a.c., both at a variable voltage. The invention applies particularly to the supplying, with a signal thus processed, of the resistive element of a connecting piece for electro-weldable plastic tubes, of an electro-heating envelope for the connection or protection of pipes, or of a heat-shrink sheath for operation on a cable having a conductor or conductors used for the carrying of electrical energy or for telecommunications.
Patent CA-2036764-A1 (CA)
Title: Pressurized water tank
Inventor: ARMSTRONG GRAEME A
IPC: B65B3/04
Filed: 1991-02-20
Abstract: ABSTRACT OF THE DISCLOSURE           A  novel  attachment  is provided  for  use  in combination with a water-containing tank having a drain valve at the bottom thereof and water bleed-off valves to enable re-pressurizing such tank with air. The attachment includes coupling means for coupling a high pressure water hose to the drain valve, a "T"-connector fitted to the other end of the high pressure water hose, a water pressure gauge fitted to one arm of the "T"-connector, a one-way inlet flow water valve within the other arm of the "T"-connector, and a one-way inlet flow air valve connected to such other end of the arm of the "T"-connector.
Patent CA-2036802-A1 (CA)
IPC: B60R19/52
Filed: 1991-02-21
Abstract: According to the present invention, there is provided a front grill fitting structure of an automobile in which clips are installed on an inner face of an upper part of an opening hole formed on a front panel and an upper part of a front grill is fitted to these clips, wherein each clip is composed of U-shaped plates having a pair of opposite faces, a projected part projecting to the inner face side on either one of the opposite faces is formed, and engagement holes which are engaged with the projected parts are formed on the upper face of the front grill, and the upper face of the front grill is inserted between mutual opposite faces of the clips in fitting the front grill.  Thus, there is provided a front grill fitting structure of an automobile in which it is possible to perform positioning of the front grill surely because the clips fix the front grill without deformation, and positioning of the front grill in front and in the rear and right and left may also be made easily because the projected parts of the clips are engaged with the engagement holes of the front grill.
Patent CA-2037478-A1 (CA)
Title: Diagnostic and treatment methods involving the cystic fibrosis transmembrane regulator
Inventor: GREGORY RICHARD
IPC: C07K19/00
Filed: 1991-03-04
Abstract: ABSTRACT   Disclosed are full length isolated DNAs encoding cystic fibrosis transmembrane conductance regulator (CFTR) protein and a variety of mutants thereof. Also disclosed are antibodies specific for various CFTR domains and methods for their production. Expression of CFTR from cells transformed with these CFTR genes or cDNAs demonstrate surprising CFTR intracellular distributions and results thereby providing for new diagnostic and therapeutic procedures.
Patent CA-2038439-A1 (CA)
Title: Active noise control system with two stage conditioning
Inventor: GEDDES EARL R
IPC: F01N1/06
Filed: 1991-03-18
Abstract: Abstract An active muffler for motor vehicle exhaust conduits comprises a pulse tracking sensor generating a signal input to an electronic control for actuating an acoustic transducer imposing cancellation pulses upon the sound pressure pulse train travelling through the conduit.  The system includes a preconditioning circuit for reducing the crest factor of the waveform pulse train travelling through the exhaust conduit by introducing negative pressure pulses into the exhaust conduit.  Preferably, a digitally controlled one bit injector includes a fluid outlet in communication with the exhaust conduit and an inlet in communication with a vacuum source such as the intake manifold of the motor vehicle engine.  Accordingly, the amplifier and the transducer of the acoustic actuator can be sub-stantially downsized for employment in mass produced motor vehicles.
Patent CA-2039154-A1 (CA)
Title: Ski or snowboard made of several layers
Inventor: KLEINHEINZ WOLFGANG
IPC: A63C5/12
Filed: 1990-07-20
Abstract: Abstract The invention relates to a ski or snowboard consisting of several layers, whose lowest layer forming the coating of the running surface is laterally bordered by steel edges.  According to the invention, for the purpose of maintaining a laminar flow around the ski during action, between the coating (5) and the layered ski or snowboard body (1, 2, 3) a correspondingly dimensioned elastic insert (6) imitating the flow damping skin of a dolphin is inserted, whereby the turbulences occurring at the coating (5) of the running surface during running due to melt water are compensated.
Patent CA-2040145-A1 (CA)
Inventor: NAGURA RIICHI
IPC: H04N13/161
Filed: 1991-04-10
Abstract: In an image pickup system which is used on a craft flying over an object zone and comprises a first (photoelectric) transducer (21) for producing a first partial (electric) signal representative of a partial image of a partial zone lying forwardly of the craft flying at a first position and a second transducer (22) for producing a second partial signal representative of another partial image of the partial zone lying directly under the craft flying, an interval of time later, at a second position spaced from the first position by a distance between two partial zones picked up by the first and the second transducers when the craft is at the first position, a compression unit (90 ) compresses the first and the second partial signals into first and second compressed signals.  A delay circuit ( 54-1) gives the first compressed signal a delay equal to the interval of time and produces a delayed signal.  A subtracter  (55-1) calculates a difference between the delayed signal and the second compressed signal and produces a difference signal.   The first compressed signal and the difference signal are transmitted by a transmitter to a ground station to obtain  a stereo image of the object zone.   Preferably, the image pickup system should comprise a third transducer (23), another delay circuit (54-2), and another subtracter (55-2).  The delay circuit is implemented by a memory.
Patent CA-2040260-A1 (CA)
Inventor: LACLAVE THOMAS J
IPC: B60J1/02
Filed: 1991-04-11
Abstract: VEHICLE TRIM ASSEMBLY AND FASTENER THEREFOR               ABSTRACT OF THE DISCLOSURE         A rotatable fastener for attaching trim strips to vehicle window assemblies and other vehicular trim supports includes a pair of trim engaging flanges at one end of a central shaft and a retaining head at the other end.  The flanges are beveled to engage the edges of a trim strip slot upon one-quarter turn rotation after insertion through an aperture in the window assembly or trim support.  The retaining head includes recesses for engaging projections on the window assembly or trim support after rotation to resist removal.  The flanges are preferably offset and the aperture shaped to receive the offset flanges and central shaft to resist fastener movement in the aperture and slot.    Alternately, the fastener may include a planar head while the flanges may each include a flexible portion and slot for reducing the width of the flanges upon insertion.
Patent CA-2042028-A1 (CA)
Inventor: ANDRE TORE M
IPC: G06F7/535
Filed: 1990-09-10
Abstract: A method and a device for performing an approximate division of a constant number by a variable number in binary form. The variable number is presumed to consist of a character bit and a plurality of bits which state the absolute value of the number. The number is converted by first forming a digital word, by substituting with logic zeroes any logic ones that have a lower significance than the most significant logic one of the bits. There is then formed a new number in binary form, by reading the character bit of the variable number as a character bit and by reading the bits in the digital word in a reversed order. The device may mainly comprise a single gate network.
Patent CA-2043105-A1 (CA)
Title: Automatic umbrella having stable extending and folding structure
Inventor: HUANG SHENG-FU
IPC: A45B19/04
Filed: 1991-05-23
Abstract: AUTOMATIC UMBRELLA HAVING STABLE EXTENDING AND FOLDING STRUCTURE          Abstract of the Disclosure An automatic umbrella includes a telescopic shaft having a lower outer tube telescopically mounted with an upper inner tube, a locking device pivotally formed in a grip and a lower portion of the central shaft having a single hook portion respectively engageable with two hook holes formed in a lower runner pivotally secured with a plurality of stretcher ribs of a rib assembly of the umbrella for locking a folded umbrella by engaging a lower hook hole in the lower runner with the hook portion of the locking device and for shielding the rib tips into the grip by engaging the hook portion with an upper hook hole of the lower runner, thereby stably locking the folded umbrella.
Patent CA-2045503-A1 (CA)
Title: Bone screw
Inventor: BIEDERMANN LUTZ
IPC: A61B17/86
Filed: 1990-11-02
Abstract: ABSTRACT     A bone screw (1) has a threaded portion (2) and a head (3). Such screws are used in particular as pedicle screws. In order that the bone screw can be anchored securely also in soft bone tissue, the screw is provided with a longi-tudinal bore (5) extending along the longitudinal axis of the threaded portion (2), the longitudinal bore (5) being provided with a tapered portion (7) opposite to the head (3). In this region of the screw, slits are extending parallel to the threaded portion and an interior thread is provided. An expander part (12) having a tip (14) forming the point of the screw and a shaft (16) having a threaded portion (17) cooperating with said interior thread are provided.
Patent CA-2045777-A1 (CA)
Inventor: BEAUDOIN NORMAND
IPC: F16H21/18
Filed: 1991-06-26
Abstract: MACHINE ENERGETIQUE A INDUCTION SEMI-TRANSMITTIVE Précis La présente invention fait suite à notre brevet canadien titré Machine énergétique 111 ,portant le numéro 1,229,749, de même qu'aux demandes titrées Machine à turbine énergétique et Machine énergétique à pistons culbuteurs, portant respectivement les numéros de demande 601,713 et 2,030,118-0, et a pour objet de produire une machine énergétique dont le mouvement de la mécanique de la turbine sera induit non pas par le travail des extrémités des pales contre le cylindre, mais plutôt par le recours à un bloc semi transmittif, cette façon de faire ayant comme résultat, premièrement d'annihiler la friction entre les extrémités des pales et le cylindre et, deuxièmement de permettre une segmentation flottante du moteur.
Patent CA-2047217-A1 (CA)
Title: A process for the preparation of 9-substituted guanine derivatives and intermediates for use in the process
Inventor: ALHEDE BORGE
IPC: C07H19/16
Filed: 1990-03-19
Abstract: A process for the preparation of 9-substituted guanine derivatives of general formula (I), in which R is C1-C4-alkyl optionally substituted with one or more hydroxy groups, or R is (.alpha.), benzyl, ribosyl, 2'-deoxyribosyl or (CH2)n-OR1 where n is 1 or 2, and R1 is CH2CH2OH or (.beta.) or salts thereof, in which a 1-substituted 5-(thiocarbamoyl)amino-1H-imidazole-4-carboxamide of general formula (III), where R has the same meaning as in formula (I), is cyclized: a) by treatment with a heavy metal salt of the group of Cu-, Ag-, Pb- and Hg-salts in an aqueous alkaline medium containing at least four equivalents of OH-ions at a temperature from about 0·C to the reflux temperature, or b) by treatment with a peroxy compound in an aqueous alkaline medium at a temperature of about 0-30·C, whereafter (I) is isolated by treatment with acid and, if desired, is converted into a salt. The invention further comprises intermediates for use in the preparation of the above-mentioned compounds.
Patent CA-2047595-A1 (CA)
Inventor: WINDEMULLER DONALD
IPC: A01D46/28
Filed: 1991-07-23
Abstract: BLUEBERRY HARVESTING MACHINE                 ABSTRACT OF THE DISCLOSURE          A harvesting machine having a self-propelled substantially U-shaped frame which can straddle a row of blueberry bushes.  A collection surface is provided within the machine made up of a plurality of pivotally mounted overlapping catcher pans which extend inwardly toward the center of the machine from each side.  A blueberry bush when in the machine forms an opening in the catcher pans about the upwardly and outwardly extending branches of the bush.       A large volume of air is directed from each side of the harvesting machine under the catcher pans forming the collection surface and upwardly through the opening in the collection surface into the blueberry bush.  The fountain of air into the blueberry bush diverts to the sides of the machine for harvesting those berries that might have fallen through the opening in the collection surface out the ground.