baber/WOPTO huggingface dataset:
Patent CA-2058916-C (CA)
Title: Piezoresistive pressure transducer with a conductive elastomeric seal
Inventor: MAURER DEAN JOSEPH
IPC: H01L29/84
Filed: 1992-01-07
Granted: 2000-03-21
Abstract: low cost piezoresistive pressure transducer utilizing premolded elastomeric seals in which at least owe seal is electrically conductive. A piezoresistive stress sensitive element in the form of a diaphragm of semiconductor material having a thickened rim is held at its rim between a pair of premolded elastomeric seals in a two piece housing. Electrical connections with eternal circuitry are made by conductive paths through one of the elastomeric seals which makes contact with electrical leads which pass through the housing wall.
Patent CA-2060598-C (CA)
Title: Bleed alleviation in ink-jet inks
Inventor: MOFFATT JOHN R
IPC: B41J2/01
Filed: 1992-02-04
Granted: 2001-10-16
Abstract: Color bleed (the invasion of one color into another on the surface of the print medium) using ink-jet inks is al-leviated by employing zwitterionic surfactants (ph-sensi-tive or pH-insensitive) or ionic or non-ionic amphiphiles.      The inks of the invention comprise a vehicle and a dye.      The vehicle typically comprises a low viscosity, high boil-ing point solvent, one or two amphiphiles at concentrations above their critical micelle concentration (cmc), while the dye typically comprises any of the dyes commonly employed in ink-jet printing. The amount of surfactant/amphiphile is described in terms of its critical micelle concentration (cmc), which is a unique value for each amphiphile. Above the cmc, micelles form, which attract the dye molecule and thus control the color bleed. Below the cmc, there is no micelle formation, and thus no control of the color bleed.
Patent CA-2060700-C (CA)
Title: Gas analysis system for furnaces and the like
Inventor: POOR RALPH P
IPC: F02D41/00
Filed: 1992-02-05
Granted: 1996-08-13
Abstract: A system for use in sensing the oxygen content of an industrial furnace gas typically containing hydrocarbons or hydrogen is disclosed.  The system utilizes a conventional automotive EGR oxygen sensor probe positioned in an espe-cially configured housing employing downstream flow regulat-ing means in combination with an orificing plate in the housing to provide uniform distribution of the endothermic gas at a low temperature about the sensor to insure accurate sensor readings with minimal carbon deposition.  The elec-trical  contacts  at  the  oxygen  sensor's  inner  and  outer electrolyte surfaces are periodically switched to an elec-trical power supply to cause current to flow through and heat the electrolyte to elevated temperatures while air is flowed over the electrolyte's surfaces to achieve burn out of any carbon deposits and restore the life of the oxygen sensor probe.  In addition, a portion of the sensor is ther-mally shielded to maintain somewhat equal reference air and furnace gas temperatures to produce consistent and reliable output signals from the oxygen sensor probe.
Patent CA-2060728-C (CA)
Inventor: GOUDY JOHN W
IPC: B60J7/08
Filed: 1992-02-06
Granted: 1995-08-29
Abstract: The roller of a truck box roller tarp assembly is equipped with dependent loops of chain at spaced intervals along its length.  Brackets, forming hooks, are secured to the truck box at a common elevation along one side.  When the tarp is closed over the box opening, the roller loops hang below the hooks.  The roller may be reverse rolled, using the conventional crank, to climb the tarp and bring the loops into engagement with the hooks.   The now-constrained roller may be further reverse rolled, to tighten the tarp.  The roller is then locked up by securing the crank to the truck box in conventional fashion.
Patent CA-2075847-C (CA)
Title: Mycobacterium primers and probes
Inventor: YOUNG KAREN K Y
IPC: C12Q1/68
Filed: 1992-08-12
Granted: 2002-04-23
Abstract: Primers and probes can be used to detect nucleic acid from Mycobacterium in a sample and determine the species from which the nucleic acid originates. The primers amplify regions of the 16S ribosomal RNA gene and hybridize to regions conserved among species. Genus specific probes hybridize to sequences within the amplified region conserved among mycobacterial species, whereas the species speck probes hybridize to a variable region, so that the species identity can be uniquely determined. Consensus probes for detecting mycobacteria nucleic acids are provided which probes are not identical to any of the sequences of mycobacterial species.
Patent CA-2076410-C (CA)
Title: Sporicidal disinfectant compositions, production and use thereof
Inventor: CORBY MICHAEL PETER
IPC: A01N59/12
Filed: 1992-08-19
Granted: 1997-04-01
Abstract: Inter alia, a sporicidal composition characterised in that it comprises iodine bromide in aqueous solution at a pH of less than 7.0 is disclosed.
Patent CA-2078171-C (CA)
Title: Method of controlling an internal combustion engine
Inventor: SATOU RYUJI
IPC: B60K28/16
Filed: 1992-09-14
Granted: 1999-03-16
Abstract: To the end of improving an engine control method which can switch over the valve operating property of the engine in a step-wise manner according to the operating condition of the engine and which can control the slipping of the driven wheels through the use of a leaner air/fuel mixture so that it may not be undesirably affected by the deviations of the actual values of various parameters from the designed values of the parameters, the engine speed and/or the load condition at which the valve operating mode is to be switched over is shifted to a higher value when a traction control is in effect (when a control process involving a leaner air/fuel mixture is being executed), the width of hysteresis of the point at which the valve operating mode is to be switched over is increased when a traction control is in effect, or the air/fuel mixture is made richer for the high speed mode than for the low speed mode.
Patent CA-2082250-C (CA)
Title: Recirculation and plug flow combustion method
Inventor: HO MIN-DA
IPC: F23C9/00
Filed: 1992-11-05
Granted: 1995-12-26
Abstract: A combustion method employing fuel-rich combustion with an upstream recirculation zone followed by a downstream plug flow zone enabling rapid heating and processing without excessive NOx generation or particulate emissions.
Patent CA-2084639-C (CA)
Inventor: FERRIER CHRISTIANE
IPC: B29B15/10
Filed: 1992-12-04
Granted: 2005-08-09
Abstract: L'invention a pour objet une matière à mouler thermodurcissable, contenant des fibres réfractaires, caractérisée en ce qu'elle peut être moulée par injection et se présente sous forme de "flock" essentiellement constitué de 60 à 30 % en poids de charges solides, imprégnées de 40 à 70 % en poids de résine thermodurcissable. Cette matière à mouler est obtenue à partir d'un sirop de 1a résine thermodurcissable catalysée dans lequel on introduit les charges solides en mélangeant de manière à réaliser une imprégnation homogène de ces dernières, puis on malaxe le mélange jusqu'à obtention d'un flock que l'on sèche sous pression réduite. Application à la fabrication, notamment par injection, de matériaux composites utilisables dans la fabrication de moteurs de missiles tactiques, en particulier de tuyères ablatables.
Patent CA-2086174-C (CA)
Title: Computational structures for the frequency-domain analysis of signals and systems
Inventor: SUNDARARAJAN DURAISAMY
IPC: G06F17/14
Filed: 1992-12-23
Granted: 1998-08-25
Abstract: Since the invention of the radix-2 structure for the computation of the discrete Fourier transform (DFT) by Cooley and Tukey in 1965, the DFT has been widely used for the frequency-domain analysis and design of signals and systems in communications, digital signal processing, and in other areas of science and engineering. While the Cooley-Tukey structure is simpler, regular, and efficient, it has some drawbacks such as more complex multiplications than required by higher-radix structures, and the overhead operations of bit-reversal and data-swapping. The present invention provides a large family of radix-2 structures for the computation of the DFT of a discrete signal of N samples. A member of this set of structures is characterized by two parameters, u and v, where u (u = 2r, r = 1, 2, . . ., (log2 N)-1) specifies the size of each data vector applied at the two input nodes of a butterfly and v represents the number of consecutive stages of the structure whose multiplication operations are merged partially or fully. It is shown that the nature of the problem of computing the DFT is such that the sub-family of the structures with u = 2 suits best for achieving its solution. These structures have the features that eliminate or reduce the drawbacks of the Cooley-Tukey structure while retaining its simplicity and regularity. A comprehensive description of the two most useful structures from this sub-family along with their hardware implementations is presented.
Patent CA-2089604-C (CA)
Title: Polymeric film
Inventor: ROBINSON JULIAN N
IPC: G03C1/795
Filed: 1993-02-16
Granted: 2003-04-01
Abstract: A coated film having a polymeric film substrate with a subbing layer containing an organic acid and a polymer which has a repeating unit(s) containing a pendant nitrogen atom(s). The ratio of organic acid to polymer in the subbing layer is in the range from 1 : 0.1 to 20 by weight. The coated film exhibits excellent adhesion to photographic emulsion layers, even when applied prior to completion of any film stretching operation.
Patent CA-2091844-C (CA)
Inventor: KELLETT E GLENN
IPC: H01B17/16
Filed: 1993-03-17
Granted: 1996-11-05
Abstract: A one piece electrical power line post insulator having a universal end clamp replaces traditional trunnion or top tie style devices. In a preferred embodiment, the invention has an insulator with a support structure base fitting at one end and a clamp at the other. The base fitting allows attachment of the device to a support structure in either a substantially vertical or horizontal orientation. The clamp has a saddle for receiving a conductor when the device is either in a horizontal or vertical orientation. A keeper is movable on a captive bolt along a track defined in the clamp body and is securable over a conductor by a lock washer and nut on the bolt.
Patent CA-2092629-C (CA)
Title: Database searching system and method using a two dimensional marking matrix
Inventor: LAU YAU C
IPC: G06F17/30
Filed: 1993-03-12
Granted: 1998-06-30
Abstract: A two dimensional matrix of marks indicating match or mismatch of one or more search arguments with the value of data elements accessed from a field common with all records of a database file. The matrix of marks created after one pass through all the records of the file is searched for a specified pattern which identifies records where the data element  values  ,as  between  successive  records,  have  a certain sequence as specified by the search arguments.
Patent CA-2101194-C (CA)
Title: High temperature resistant patch for self-locking threaded fasteners and method of manufacture
Inventor: DIMAIO ANTHONY E
IPC: F16B39/01
Filed: 1993-07-23
Granted: 1998-09-15
Abstract: Self-locking threaded fasteners having a patch of fused high-temperature-resistant resin powder adhering to at least part of the  threaded  portion  of  the  fastener,  the  patch  including polyphthalamide resin particles having specific particle size ranges and providing sufficient frictional engagement between the threaded fastener and a mating fastener so that removal torque values for a threaded fastener are predictable and substantially uniform.  This special patch can withstand exposure to elevated temperatures  (above  400°F)  while  retaining  its  self-locking capabilities.
Patent CA-2103085-C (CA)
Title: Method for preparing superconducting thin film formed of high temperature superconductor oxide
Inventor: NAKAMURA TAKAO
IPC: C30B29/22
Filed: 1993-11-15
Granted: 1996-08-06
Abstract: A method for preparing a thin film formed of an oxide superconductor on a substrate by emitting molecular beams of constituent elements of the oxide superconductor to the substrate under high vacuum, wherein at first a molecular beam of one of the constituent elements of the oxide superconductor, of which an oxide thin film can be deposited so as to have a smooth surface, is emitted so as to form the oxide thin film of one or two unit cells. And then, all the molecular beams of constituent elements of the oxide superconductor are emitted to the oxide thin film so as to form the oxide superconductor thin film.
Patent CA-2111766-C (CA)
Title: Flush round rod
Inventor: GIBBONS JOHN ROBERT
IPC: E21B17/00
Filed: 1993-12-17
Granted: 1999-12-07
Abstract: A one piece, flush round rod is disclosed. The rod is used for reciprocal action in a well casing in pumping fluids from a production well. The rod has two connectors, a female threaded socket at one end and a male threaded pin on the other end for facilitating the axial connection of a series of rods. The outside diameter of the connectable ends is no greater than the maximum diameter of the rod itself.
Patent CA-2113504-C (CA)
Inventor: AOKI TOSHIO
IPC: A44B19/06
Filed: 1994-01-14
Granted: 1996-09-24
Abstract: A press-formed, metal, coupling element particular-ly suitable for use in a bidirectionally openable slide fastener which includes a coupling head portion having on its opposite end a protrusion and a corresponding pocket, and a guide groove formed in the front end of the coupling head portion, the guide groove having a width and a depth both reducing progressively from the pocket side toward the protrusion side of the coupling head portion.  When the slide fastener is opened and closed, the guide groove in each coupling element slidably receives and guides the front end portion of the opposite coupling element as the protru-sion and pocket of these coupling element are brought into and out of mutual engagement with each other.  With the provision of the guide groove, the coupling elements are mutually engageable and disengageable with least friction resistance when the slide fastener is opened and closed in either of two reciprocal directions.  A simple method of making such coupling element is also disclosed.
Patent CA-2120462-C (CA)
Inventor: LAAKMANN PETER
IPC: G01J1/42
Filed: 1994-03-31
Granted: 1997-04-08
Abstract: A pocket size laser power meter adapted to measure the power of laser energy emitted by a laser. The power meter includes a thermal mass adapted to receive the laser energy. A temperature sensor coupled to the thermal mass translates temperature changes in the thermal mass into an electrical sensor signal having a variable voltage. A differentiator coupled to the temperature sensor receives the electrical sensor signal and produces a differentiated signal indicative of the rate of change of voltage of the electrical sensor signal. A cooling rate holding circuit coupled to the differentiator receives a cooling portion of the differentiated signal indicating a lowering of the temperature of the thermal mass. A heating rate holding circuit coupled to the differentiator receives a heating portion of the differentiated signal indicating a raising of the temperature of the thermal mass. A display meter coupled to the holding circuits adds the cooling and heating portions of the differentiated signal together, translates the differentiated signal into a power reading, and displays the power reading to a operator.
Patent CA-2120792-C (CA)
Inventor: SASAOKA EISUKE
IPC: G02B6/26
Filed: 1994-04-07
Granted: 2006-05-09
Abstract: the present invention comprising a waveguide substrate and an optical waveguide disposed on the substrate, the optical waveguide having an optical waveguide region as a light transmission path, an insertion region inserted an optical functional component having a mode field width of light propagating therein larger than that of light propagating of the optical waveguide region, and an optical connection region provided between the optical waveguide region and the insertion region to.change an mode field width of light propagating therein.
Patent CA-2132856-C (CA)
Inventor: DELAMOTTE JEAN-CHRISTIAN
IPC: H01R4/02
Filed: 1993-04-07
Granted: 2004-01-20
Abstract: A device for electrically connecting a coaxial cable to another electrical component comprises a sleeve for receiving an end of the coaxial cable, the sleeve having a pair of elongate conductive members that extend out of the sleeve from the interior there-of for forming a connection with the electrical component and two quantities of solder for connecting each conductive member to a conductor of the coaxial cable, wherein the sleeve is a unitary sleeve and the conductive members both extend out of the same end of the sleeve, at least one of the elongate conductive members being electrical insulated in order to prevent a short circuit be-tween the conductive members. Also disclosed are a plurality of such devices located on a strip which joins at least one of the con-ductive members of each device, and a method of manufacturing the devices.
Patent CA-2132889-C (CA)
Inventor: RAYNES JOHN W
IPC: A61B5/0215
Filed: 1994-09-26
Granted: 1999-01-12
Abstract: A filter for rezeroing an in-vivo pressure sensor is disclosed. The filter operates in a signal mode and a rezero mode. In the signal mode, the filter is a low pass filter which filters out noise. In the rezero mode, the filter is a low pass filter which filters out the dynamic components of an in-vivo pressure signal caused bythe rezeroing of the pressure sensor. The filter is switchable between the signal and rezero modes. The filter is implemented by means of an active two pole RC filterwith a Butterworth response. A circuit is provided to shorten the time in which the filter reaches its final response characteristic. Also disclosed is a method forprocessing an output from an in vivo pressure transducer, the output signal comprising noise, a mean pressure signal and a dynamic pressure signal. The method comprises the steps of: receiving as an input, the output signal from thepressure transducer; filtering out the noise from the received input by means of a first filter circuit; and, filtering out the dynamic pressure signal while passing the mean pressure signal by connecting a second circuit to the first filter circuit.
Patent CA-2132984-C (CA)
Inventor: FABO TOMAS
IPC: A61F13/00
Filed: 1993-03-30
Granted: 2005-08-30
Abstract: The present invention relates to a method of manufacturing a wound dressing.  According to the invention, the upper surface of a perforated carrier material (2) is coated with a curable silicone mixture (3) and cold air is blown onto the underside of the coated carrier material. Heat is then applied to the silicone mixture until it has cured to a silicone get. The invention also relates to an arrangement for carrying out the method, and also to a wound dressing manufactured in accordance with the method.
Patent CA-2133330-C (CA)
Title: Electric high-tension circuit breaker
Inventor: LEHMANN VOLKER
IPC: H01H33/91
Filed: 1993-02-09
Granted: 1999-04-27
Abstract: A self-blow-out switch having a compression device has a pressure chamber heated by electric arc energy connected to a compression space, optionally with valve control. The compression space is connected to a low-pressure space via a pressure relief valve and a refill valve. Two valve disks of the relief and refill valves, which are located between the compression space and the low-pressure space are designed as two concentric washers of different diameters, lying in direct contact with each other and partly overlapping each other, and integrated to form a single valve unit.
Patent CA-2133336-C (CA)
Inventor: WILLIAMS GARY R
IPC: A61F5/37
Filed: 1993-05-05
Granted: 2003-12-30
Abstract: A multiple position child restraint device (15) for use with vehicles, stretchers, cots, beds, and other transport ap-paratuses, and which can be folded into planar condition for storage and shipment. The restraint device includes sub-stantially planar back support (20), seat support (50), and leg support (70) members hingedly attached in serial rela-tionship with one another generally along a longitudinal axis. The hinged connection between the back support and seat members is preferably provided by a pair of oppositely disposed hinges (80) having a plurality of locking slots which align with one another at predetermined angular rela-tionships, and wherein a locking bar (90) fits within the aligned slots to selectively lock the back support and seat members in one of a plurality of predetermined angular or-ientations. A multiple strap restraint device including a pair of shoulder straps (67) and a releasable buckle (65) secures to child on the seat and back support members, and an ar-rangement is provided for convenient adjustment of the shoulder straps along the longitudinal length of the back support member to accommodate children of different sizes without disconnecting the straps from the device. Folding lateral support panels (110, 102) are also provided along the opposite longitudinal edges of the seat and back support members.
Patent CA-2133833-C (CA)
Inventor: GOLDENBERG MILTON D
IPC: A61B5/05
Filed: 1993-04-02
Granted: 2009-12-22
Abstract: Provided are methods and compositions for detecting and treating normal, hypoplastic, ectopic or remnant tissue, organ or cells in a mammal. The method comprises parenterally injecting a mammalian subject, at a locus and by a route providing access to said tissue or organ, with a composition comprising antibody/fragment which specifically binds to targeted organ, tissue or cell. The antibody/fragment may be administered alone, or labeled or conjugated with an imaging, therapeutic, cytoprotective or activating agent.
Patent CA-2139205-C (CA)
Inventor: AIHARA TAKAO
IPC: B63H3/00
Filed: 1994-12-28
Granted: 1998-07-07
Abstract: A plurality of blade  shafts  33  spline-connected  to bosses  32 a of  a  plurality  of  propeller  blades  32  are rotatably carried on a propeller boss 12 parallel to an axis  of  the  boss  12,  the  propeller  blades  32  being rotated  so  as  to   increase  a  propeller-diameter according to an increase in a centrifugal force, and all the  blade  shafts  33  are  mutually  connected  through  a synchronizer   41    including   cranks   42    integrally continuously provided on the blade shafts 33 and a single common synchronizing ring 43.   With this arrangement,  it is possible to always equally control opening angles of all the propeller blades despite the partial conditional change.
Patent CA-2140168-C (CA)
Title: Dispersants for lubricating oil
Inventor: NICHOLSON SUSAN M
IPC: C10N10/02
Filed: 1995-01-13
Granted: 2004-06-01
Abstract: Novel dispersant compositions for lubricating oil are described. They exhibit little fluoroelastomer antagonism and are effective in controlling sludge, varnish and wear.     The dispersants comprise two components. One is formed by reacting aminoguanidine with a long chain succinic acylating agent. The product may be borated if desired. The other component is formed by reacting (i) a succinic acylating agent and (ii) an alkylene polyamine, and then heating the resultant succinimide concurrently or in any sequence with (iii) a dicarboxylic acylating agent having less than 20 carbon atoms, and (iv) a boron compound to form a product having (1) a total base number of about 33-45 milligrams of KOH per gram of product, excluding weight of any solvent or diluent, and (2) a boron level of about 1.0-1.4 wt% excluding weight of any solvent or diluent.
Patent CA-2141550-C (CA)
Title: Suspensions aqueuses de particules colloidales; preparation et utilisation des suspensions
Inventor: ANDERSSON KJELL
IPC: C02F1/52
Filed: 1993-08-11
Granted: 1998-09-22
Abstract: Suspensions aqueuses de particules colloïdales qui sont des particules anioniques à base de silice et des particules hydratées d'argile de type smectite qui gonflent en présence d'eau et un procédé pour la préparation de ces suspensions. Ces suspensions sont utiles comme agents de floculation, en particulier lorsqu'elles sont combinées à des polymères dans la production du papier.