baber/WOPTO huggingface dataset:
Patent WO-0064622-A1 (WO)
Title: Procede et appareil d'etalonnage du laser
Inventor: KITAI ANTON THEODORE
IPC: B23K26/08
Filed: 2000-04-26
Abstract: L'invention concerne un procédé (140) et un système (10) pour déterminer les coordonnées d'un scanner afin de positionner avec précision un faisceau laser focalisé (32a, 32b). On balaie le faisceau laser focalisé (32a, 32b) sur une zone d'intérêt (p.ex. une ouverture (34)) sur une surface de travail (36) au moyen d'un scanner laser (22, 24). La position du faisceau laser focalisé (32a, 32b) est détectée par un photodétecteur soit à des intervalles prédéterminés de temps ou d'espace soit lorsque le faisceau laser focalisé apparaît à travers une ouverture sur la surface de travail (36). La position détectée du faisceau laser focalisé (32a, 32b) est utilisée pour générer des données sur la position du scanner par rapport à la position du faisceau, fondée sur la position du scanner laser (22, 24) au moment de la détection du faisceau laser focalisé (32a, 32b). Les données sur la position du scanner par rapport à la position du faisceau peuvent être utilisées pour déterminer les coordonnées du centre de l'ouverture ou de la position du scanner qui correspondent à une position désirée du faisceau laser focalisé (32a, 32b).
Patent WO-0122988-A1 (WO)
Inventor: AUBIN JANE E
IPC: A61P19/00
Filed: 2000-08-30
Abstract: Méthodes et compositions pharmaceutiques pour la modulation de la formation osseuse chez un mammifère. Des méthodes d'analyse de l'efficacité de composés en tant que modulateurs de la formation osseuse sont également décrites.
Patent WO-0225801-A1 (WO)
Title: Moteur piezoelectrique
Inventor: IAROCHENKO ALEXANDER M
IPC: H01L41/09
Filed: 2001-08-27
Abstract: La présente invention concerne un moteur piezoélectrique (10) comprenant un stator (12); un rotor (14) présentant une surface circonférentielle interne de rotor, un élément piezoélectrique (16) maintenu sur le stator; un système d'alimentation électrique en communication avec ledit élément piezoélectrique afin de produire du point de vue fonctionnel des oscillations mécaniques résilientes longitudinales dans l'élément; une pluralité d'éléments de pression (18) présentant chacun (a) au moins une première partie (38, 39) définissant une surface de butée de pression venant en butée contre la surface interne de rotor, (b) au moins une deuxième partie (42, 44) définissant une surface de prise d'élément piezoélectrique distale par rapport à la surface de butée de pression, et (c) une troisième partie (34) définissant une surface retenue; un système de retenue (20) venant en butée avec la surface de retenue de l'élément de pression afin de retenir de façon amovible l'élément de pression en butée avec la surface de prise d'élément piezoélectrique et la surface interne de rotor. Selon l'invention, les oscillations mécaniques résilientes longitudinales produisent un mouvement coplanaire avec l'élément de pression, et la première partie a une forme et une inclinaison qui lui permettent de produire d'un point de vue foinctionnel un mouvement circonférentiel de la surface circonférentielle lorsque l'élément de pression effectue les mouvements mécaniques résilients longitudinaux produits par l'élément piezoélectrique afin de produire le mouvement rotationnel de la surface circonférenmtielle interne de rotor par rapport à l'élément piezoélectrique. Le moteur peut être démonmté et réparé.
Patent WO-03094618-A1 (WO)
Title: Compositions herbicides naturelles a base d'uree
Inventor: LEWIS JAMES L
IPC: A01N59/00
Filed: 2003-05-13
Abstract: L'invention concerne une composition herbicide naturelle renfermant de l'urée, de l'eau, de l'acide acétique et éventuellement un agent liant. La composition peut également renfermer un ou plusieurs sels et des produits intermédiaires du cycle de l'acide citrique. L'invention concerne également des méthodes de désherbage ou des méthodes servant à désherber des parcelles de terrain, ainsi que des méthodes servant à produire des compositions herbicides naturelles.
Patent CA-2002001-A1 (CA)
Inventor: KLASER JOHN J
IPC: H05K1/16
Filed: 1989-11-01
Abstract: ABSTRACT      A method is disclosed for manufacturing multilayer printed circuit boards in which one or more layers thereof, including intermediate layers, may include one or more screened on resistors. The method is particularly well suited for use where large numbers of resistors are required on one or more intermediate layers of a multilayer printed circuit board.  The method includes the steps of manufacturing individual layers of the multilayer board with electrical circuits thereon and subsequently screening on one or more values of resistors using a polymer thick film resistive ink. Each layer of the multilayer board is cured to dry the polymer thick film resistors.  The individual layers are thereafter bonded together into a multilayer board.
Patent CA-2003318-A1 (CA)
Title: Thermoelectric energy conversion
Inventor: STRACHAN JOHN S
IPC: H01L35/32
Filed: 1989-11-17
Abstract: ABSTRACT                 THERMOELECTRIC ENERGY CONVERSION            A thermopile 30 comprises a stacked assembly of bimetallic layers in which there is full conductor interface contact over the distance separating hot and cold surfaces 31, 32.  The assembly may include dielectric layers forming a capacitor stack.  A.C. current through the stack is matched in strength to the Seebeck-generated thermoelectric current circulating in each bimetallic layer.  The resulting current snakes through the stack to cause Peltier cooling at one heat surface and heating at the other.  A.C. operation at a kilocycle frequency enhances the energy conversion efficiency as does heat flow parallel with the junction interface.
Patent CA-2003427-A1 (CA)
Title: Electric power cable
IPC: H01B9/02
Filed: 1989-11-21
Abstract: ABSTRACT              AN IMPROVED ELECTRIC POWER CABLE      In a single core or multi-core electric power cable, the dielectric screen of the or each cable core is surrounded by a moisture barrier consisting of a composite tape comprising a carrier layer of plastics material which is sandwiched between radially inner and outer metal foils bonded to the major surfaces of the carrier layer and electrically connected together.  The composite tape surrounds the dielectric screen with its longitudinally extending edges overlapping and secured to one another throughout their lengths to form a moisture-tight seal.  The moisture barrier so formed effects electrical interconnection between the underlying dielectric screen and a surrounding neutral, earth or ground conductor of the core.  The moisture barrier is less expensive than moisture barriers hitherto proposed and used.
Patent CA-2008156-A1 (CA)
Title: Passive filter for stray voltage reduction
Inventor: LAVERDIERE CLEMENT
IPC: H05F3/00
Filed: 1990-01-19
Abstract: ABSTRACT OF THE DISCLOSURE      There is disclosed a passive stray voltage reduction device comprising an input to be connected to a conducting object, the conducting object being in contact with ground, an output to be connected to an auxiliary ground rod,  a first pair of series connected electrolytic polarized capacitors,  connected to one another by positive junctions and connected between the input and the output, and a second pair of series connected electrolytic polarized  capacitors,  connected  to  one  another  by  negative junctions and connected between the input and the output, the first and second pair of series connected capacitors being thus connected in parallel and capable of absorbing stray parasitic voltages.  The circuit is used to reduce stray voltages in grounded farm equipment to reduce harm to farm animals.
Patent CA-2009091-A1 (CA)
Title: Process for the desorption of adsorbents
Inventor: MOLLER JOACHIM
IPC: B01J20/34
Filed: 1990-02-01
Abstract: ABSTRACT         A process for the desorption of adsorbentia, such as activated carbon, is provided in which process a desorption medium is led through the adsorbent, and thereafter adsorbates entrained by the desorption medium are separated from the desorption medium, wherein a hot, dry purge gas that is decontaminated by a chemical purification process after flowing through the adsorbent is employed as the desorption medium so that the method can be simplified.
Patent CA-2009809-A1 (CA)
Title: Liquid crystal pigment, method of producing and use in coatings
Inventor: METZGER CARL W
IPC: C09D7/62
Filed: 1990-02-12
Abstract: Abstract The present invention relates to a liquid crystal pigment which allows the  simpler  use  of  liquid  crystals  in  coating  applications  with greatly improved appearance uniformity of the liquid crystal effect. The liquid crystal  pigment comprises a laminar particle which is at least partially coated with a liquid crystalline material, which has been  precipitated  from  a  solution  onto  the  laminar  particle.
Patent CA-2010315-A1 (CA)
Inventor: SCHMUTZ BERNARD
IPC: F16D25/04
Filed: 1990-02-19
Abstract: A clutch arrangement includes a hub connected by identical stacks of lamellae to a plate and counter-plate with friction pads which plates are urged by a pneumatic system into engagement on clutch surfaces of flanges of the other shaft. The hub has a polygonal shaped periphery of two or more rounded corners connected by concave sides and each of the plates has an aperture of the same configuration receiving the hub with a cylindrical support for receiving the end of a stack of lamellae disposed midway between each pair of corners. Thus, the plates can be easily moved axially relative to the hub but are rigidly connected to the hub for transferring rotary motion therebetween.
Patent CA-2014199-A1 (CA)
Title: System and apparatus for neutron biography
Inventor: WHITTEMORE WILLIAM L
IPC: G01T3/00
Filed: 1990-04-09
Abstract: ABSTRACT    An  apparatus  for  use  in  neutron  radiography  has  a convergent collimator of moderator material joined coaxially to a divergent collimator made of neutron-absorbing material.  An aperture is  formed  between  the  collimators.   The divergent collimator substantially defines a neutron beam.   An imaging plane  is disposed within the  neutron  beam.   The convergent collimator has a base which defines a source plane.  Neutron-emitting  radioisotopes  which  are  a  source  of  neutrons  are placed  symmetrically  about  the  source  plane.     Neutron-moderating material is placed between the neutron sources and the  aperture.     The  convergent-divergent  shape  of  the collimators is designed to expose all of the source plane for optimum and uniform thermal neutron irradiation of the imaging plane.  The neutron sources are placed within the moderator at a predetermined distance  from  the  source  plane  to  provide maximum  thermal  neutron  flux  through  the  aperture  to  the imaging plane, while at the same time preventing direct line-of-sight  gamma  radiation  from  the  neutron  sources  to  the imaging plane.
Patent CA-2016480-A1 (CA)
Title: Noise suppressing circuit for use with an avalanche photodiode
Inventor: MCINTYRE ROBERT J
IPC: G01J1/02
Filed: 1990-05-10
Abstract: NOISE SUPPRESSING CIRCUIT FOR USE WITH AN AVALANCHE PHOTODIODE             Abstract of the Disclosure There is provided a noise suppression circuit that is used in conjunction with an avalanche photodiode operating near its breakdown voltage to detect low light levels.  The noise suppression circuit significantly reduces the multiplication noise normally associated with high gain avalanche photodiodes by examining and modifying the gain probability distribution of the detected signal. The gain probability distribution is modified by replacing current pulses in the detected signal that exceed a predetermined threshold gain with a uniform pulse signal of its own predetermined gain.   The noise suppression circuit increases the Figure of Merit (FOM) to about 75% where the FOM is defined as the ratio of actual signal to noise of the photodiode and wideband preamplifier to the ideal signal to noise of a perfect quantum counter.
Patent CA-2018032-A1 (CA)
Title: Liquid-ring compressor
Inventor: TRIMBORN PETER
IPC: F04C28/00
Filed: 1990-06-01
Abstract: ABSTRACT OF THE DISCLOSURE                  LIQUID-RING COMPRESSOR      In a liquid-ring rotary compressor having a control element with a suction port,  a pressure orifice,  and a plurality of supplementary ports in front of the pressure orifice with respect to the direction of rotation of the compressor impeller, each supplementary port having a back-pressure valve, pressure losses are reduced by decreasing the flow area of the supplementary ports toward the pressure orifice so that the total flow area for the supplementary ports that are exposed by the back-pressure valves during the compression operation is roughly proportional,  with respect to the prevailing nominal pressure condition of the compressor, to the gas mass existing in the vane chambers. Embodiments  for  flat  and  conical  control  elements  is disclosed.
Patent CA-2020368-A1 (CA)
Title: Angiographic adjuvant
Inventor: GOTOU YASUYUKI
IPC: A61K49/00
Filed: 1990-07-04
Abstract: An angiographic adjuvant comprising a fat emulsion containing a compound having prostaglandin E1 activities, and an angiographic method using the adjuvant.
Patent CA-2021243-A1 (CA)
Title: Vehicular sound reproducing
Inventor: LATHAM-BROWN ERNEST
IPC: B60R11/00
Filed: 1990-07-16
Abstract: Abstract of Disclosure A vehicle sound reproducing system including four driver units that radiate in at least the upper frequency range and are located in respective front and rear, left and right side panels.  Also, disclosed is a nonlocalizable woofer module placed below a front seat of the vehicle.
Patent CA-2022250-A1 (CA)
Title: Protocol for transfer of dma data
Inventor: BISSETT THOMAS D
IPC: G06F11/10
Filed: 1990-07-30
Abstract: ABSTRACT OF THE DISCLOSURE      A process for transferring data via DMA between a system resource and a controller via switching logic.     During a setup write transaction, the switching logic is set up to enable DMA data to be transferred between a particular system memory and a selected system resource.           The setup write transaction also is used to initialize the DMA byte counter.  During a subsequent write transaction, DMA pointer registers are initialized with appropriate starting addresses.  The controller then transmits a DMA start code and the system resource responds by transmitting an acknowledge code.  At that time, DMA data is transmitted between the controller and the system resource via the switching logic.
Patent CA-2023119-A1 (CA)
Title: Extraction of noble metals with thiourea
Inventor: SHAFSKY RICHARD O
IPC: C22B3/16
Filed: 1990-08-10
Abstract: EXTRACTION OF NOBLE METALS WITH THIOUREA      ABSTRACT OF THE DISCLOSURE Noble metals (e.g., gold and/or silver) are recovered form ore with an extraction solution containing thiourea.  An alkali metal or ammonium bisulfate is used to maintain an acidic pH without the addition of sulfuric acid.  The thiourea extraction solution can be rejuvenated and recycled.
Patent CA-2023788-A1 (CA)
IPC: H04B7/15
Filed: 1990-08-22
Abstract: The present invention relates to an economical yet effective technique for locating and defeating intentional or unintentional interfering signals transmitted to a commercial communications satellite on a channel-by-channel basis. The satellite arrangement includes a first and a second configuration of hybrids and Variable Power Combiners (VPCs), respectively, that concurrently combine the channels received from a plurality of ground regions for delivery to at least one input multiplexer. In one arrangement, the corresponding channel outputs from the at least one input multiplexer, are each connected to a different input of a separate Single Pole Double Throw (SPDT) switching means. Channel switching is accomplished by transmitting commands to the VPCs and SPDT switches from a command earth station. Noting the presence or absence of the interfering signal for a given channel switch and VPC setting will provide the location of the interferer and the elimination of the interfering signal.
Patent CA-2024523-A1 (CA)
Title: Sulfonylhydrazines and their use as antineoplastic agents and as antitrypanosomal agents
Inventor: SARTORELLI ALAN C
IPC: A61P35/00
Filed: 1990-09-04
Abstract: ABSTRACT OF THE DISCLOSURE          Sulfonylhydxazines of the formula RS02N(CH2CH2X)N(SO2CH3)2, wherein R is an alkyl or an aryl and X is a halogen or OSO2Y, wherin Y is an alkyl or an aryl.  Such sulfonylhydrazines are useful in treating cancer.           Methylating agents of the formula (a) R'SO2N(CH3)N(SO2CH3)2, wherein R' is an alkyl or an aryl and (b) R''SO2N(CH3)N(CH3)SO2R", wherein R'' is an alkyl or an aryl.  Such methylating agents are useful as antitrypanosomal and anticancer agents.
Patent CA-2029727-A1 (CA)
Title: Process for production of cellulose fiber filled-polystyrene composites characterized by lignin/mixture of lignin and isocyanate bonding agents
Inventor: MALDAS DEBESH C
IPC: C08L51/02
Filed: 1990-11-13
Abstract: ABSTRACT      Under study were the method of preparation of composites comprising polystyrene and cellulose fiber using a coupling agent, such as lignin, or the mixtures of coupling agents, e.g. lignin and isocyanate. An alternative method for incorporating cellulosic fibers into polystyrene matrix is also provided by precoating the fibers with a compatible polymer and a single coupling agent or the mixture of coupling agents.
Patent CA-2030108-A1 (CA)
Title: Process for the preparation of genetic vectors for the expression of nerve growth factor in eukaryotic cells
Inventor: VALLE FRANCESCO D
IPC: A61K38/00
Filed: 1990-11-15
Abstract: The invention provides replicable expression vectors for the expression of human .beta.-NGF, methods for producing human .beta.-NGF using them, the protein produced by the method and pharmaceutical compositions comprising the protein.  The vectors, specifically plasmids pMSGphNGF, pSV40MTphNGF and pSV40phNGF, comprise a first DNA sequence which codes for human .beta.-NGF, a second DNA sequence which codes for prepro .beta.-NGF and is fused to the 5' end of the first DNA sequence, and a promoter-enhancer regulatory element directly fused to the 5' end of the second DNA sequence.  The vectors provide for expression of human prepro NGF of preferentially the form wherein initiation is from the methionine codon at position -121 relative to the prepro cleavage site, thus giving the protein preferentially expressed in human brain tissue.
Patent CA-2030860-A1 (CA)
Title: Rotary drill bits
Inventor: CLEGG JOHN M
IPC: E21B10/55
Filed: 1990-11-26
Abstract: ABSTRACT        "Improvements in or relating to rotary drill bits"      A rotary drill bit comprises a bit body having a shank for connection to a drill string and a passage for supplying drilling fluid to the face of the bit, which carries a plurality of polycrystalline diamond preform cutting elements     .  The cutting elements on one side of a diameter of the bit have positive side rake and the cutting elements  on the other side of the diameter have negative side rake so that the vectorial sum of the reaction forces between the formation being drilled and the cutting  elements provides a resultant lateral imbalance force  acting on the bit body as it rotates in use.  The gauge of the bit body includes low friction bearing pads          so located as to transmit the resultant lateral force to the sides of the borehole.  Since the bearing pads are of low friction, they slide around the surface of the formation and any tendency for bit whirl to be initiated is reduced.  The lateral imbalance force may also be provided by varying the back rake of the cutting elements on different parts of the bit, or by including an asymmetrical mass of material in the bit body.
Patent CA-2031555-A1 (CA)
Inventor: INOUE NAOSHI
IPC: H04N1/32
Filed: 1990-12-05
Abstract: An image communication apparatus for receiving and recording transmitted recording data, includes a reception unit for receiving the transmitted recording data, a storage unit for storing the recording data received by the reception unit in a nonvolatile manner, a recording unit for reading out and recording the recording data stored in the storage unit after the recording data is received by the reception unit, and a deletion unit for deleting the recording data stored in the storage unit by a manual operation after the recording data is recorded by the recording unit.
Patent CA-2032584-A1 (CA)
Inventor: HOFFMAN BERTIL
IPC: G01L1/12
Filed: 1990-12-18
Abstract: If the B-field of a body with a sinusoidal symmetrical magnetization exhibits even harmonics, this means that the body also has a superimposed static and/or quasi-static magnetization.  The invention comprises a method and a device for determining and measuring, respectively, the content of even harmonics (8).  The content corresponds to the degree of static and/or quasi-static magnetization and is used as input signal to a regulator (11) which, with the aid of a direct current in, for example, a separate winding (14), reduces the static and/or quasi-static magnetization to zero.
Patent CA-2033096-A1 (CA)
Inventor: YAKABE MASAHIRO
IPC: G06T7/40
Filed: 1990-05-30
Abstract: The present invention is directed to a formation measuring method and a formation control method and apparatus using the formation measuring method in which image by light emitted from light source and transmitted through a predetermined area of paper is caught by a camera to be displayed as transmitted light image on a display of an image processing computing element, the transmitted light image displayed on the display being image-analyzed to obtain formation factor for quantification of the formation, J/W ratio and the like being optimized by fuzzy control using membership functions based on said formation factor so as to improve the formation.
Patent CA-2034315-A1 (CA)
Inventor: HOOVER DENNIS J
IPC: C07K5/023
Filed: 1991-01-16
Abstract: ORALLY ACTIVE RENIN INHIBITORS         Abstract This invention relates to compounds of the formula            I     wherein Q, Z, D, E, R3, R4, R5 and R6 are defined as below, and  the  pharmaceutically  acceptable  salts  thereof  are disclosed.   The compounds are useful as antihypertensive agents.
Patent CA-2037827-A1 (CA)
Title: Method for electronic color processing
Inventor: WARNER GEORGE T
IPC: H04N1/60
Filed: 1991-03-08
Abstract: TITLE OF THE INVENTION            METHOD FOR ELECTRONIC COLOR PROCESSING                 ABSTRACT OF THE DISCLOSURE           The present invention relates to a method for adjusting original color signal values for n colors in a color separation system and, more particularly, to a computer implemented method for adjusting the original values based on color interaction.
Patent CA-2039337-A1 (CA)
Inventor: BALDWIN JOE M
IPC: F25B49/02
Filed: 1991-03-28
Abstract: Title THERMOSTAT INTERFACE FOR A REFRIGERATION SYSTEM CONTROLLER                           Inventors JOE M. BALDWIN MERLE A. RENAUD ALAN G. METCALFE             Abstract An interface for use between a thermostat and a controller for an HVAC system comprising:  means for receiving a plurality of parallel commands from a thermostat where each command represents one of two possible states; means for converting each of the plurality of parallel commands into a plurality of predetermined values; means for combining the predetermined values in a predetermined manner; and means for transmitting the combined predetermined values to the controller.
Patent CA-2039753-A1 (CA)
Title: Method of rendering masonry materials water repellent with low voc organoalkoxysilanes
Inventor: ENGEL JAMES F
IPC: C09D4/00
Filed: 1991-04-04
Abstract: METHOD OF RENDERING MASONRY MATERIALS WATER REPELLENT              WITH LOW VOC ORGANOALKOXYSILANES                 Abstract of the Disclosure A composition and method for rendering a surface water repellent.  The composition is a substantially solvent-free organoalkoxysilane having between two and nine silicon atoms per silane.  An oleophobic organofluoro compound may be added to the composition in order to render the surface also oil repellent.