baber/WOPTO huggingface dataset:
Patent CA-2151938-C (CA)
Inventor: TERRY CHARLES J
IPC: C23C4/06
Filed: 1994-01-27
Granted: 1999-09-07
Abstract: A spray powder for thermal spraying onto a substrate to provide a hardfacing, and a part with such hardfacing on the surface thereof, that is corrosion-resistant and abrasion-resistant. The spray powder comprises between about 75 to about 90 weight percent of tungsten carbide. The powder further comprises between about 10 and 25 weight percent of a nickel-based alloy, which includes Mo, and optionally, includes one or more of Fe, C, Cr, Mn, Co, Si and W.
Patent CA-2160081-C (CA)
Inventor: KNAPP PAUL WILLIAM JR
IPC: C07D413/04
Filed: 1995-10-06
Granted: 2005-12-06
Abstract: There is provided an efficient single step process to produce 4-aryl-2-perfluoroalkyl-3-oxazolin-5-one from arylglycine and a perfluoroacylating agent in the presence of a phosphorous trihalide and a solvent. The oxazolinone is a key intermediate in the production of insecticidal, nematicidal and acaricidal arylpyrrole compounds.
Patent CA-2160501-C (CA)
Inventor: FRANKENY JEROME ALBERT
IPC: H05K1/16
Filed: 1995-10-13
Granted: 2001-01-16
Abstract: Method and apparatus for fabricating fine pitch pattern multilayer printed circuit boards involving laminar stackable board layers providing power distribution, signal distribution and capacitive decoupling.  In one respect, the invention relates to the fabrication of board layers by beginning with a metallic core, patterning the core, selectively enclosing the core in a dielectric, selectively depositing metal to form vias, plugs and signal lines, and forming dendrites with joining metallurgy on the vias and plugs to provide stackable connection from above or below the plane of the board layer.   In another aspect, the invention is directed to the use of a sol-gel process to form a thin high dielectric constant crystalline film onto a metallic sheet followed with a deposition of a metallic layer onto the high dielectric constant film.  The film serves as the dielectric of a capacitor layer which is thereafter in succession patterned, covered by a dielectric, and has selectively deposited a metallic layer for interconnecting the capacitor and forming vias.  The ends of the vias are thereafter subject to dendritic growth and joining  metallurgy  to  provide   stackable   interconnection capability.   A multilayer composite laminar stackable circuit board structure is created using, as appropriate, layers having metallic cores and layers having capacitively configured cores. The multilayer laminar stackable circuit board provides direct vertical connection between surface mounted electronic components and the power, signal and capacitive decoupling layers of the composite board through the dendrites and joining metallurgy of the via and plug formations.
Patent CA-2163059-C (CA)
Title: Tunable add/drop optical filter providing arbitrary channel arrangements
IPC: H04J14/02
Filed: 1995-11-16
Granted: 1999-03-09
Abstract: A novel add/drop optical filter providing arbitrary channel arrangements between two input WDM signals and two output WDM signals is presented.  The device consists of two WGR's connected by 2x2 optical switches in each WGR branch.  The same circuit can also be used as a 2x2 wavelength-space switch for WDM signals.  In both cases N channel arrangements between the two outputs are possible when the two input signals each support N channels.
Patent CA-2163628-C (CA)
Title: Mobile tracking units employing motion sensors for reducing power consumption
Inventor: WELLES KENNETH BRAKELEY II
IPC: G01C21/00
Filed: 1995-04-24
Granted: 2007-01-09
Abstract: A mobile tracking unit capable of operating in a power-starved environment f or a vehicle tracking system includes a navigation set for generating data corresponding to a respective vehicle position. The navigation set is periodically energized at a selected activation rate FG while the vehicle is moving to generate the vehicle position data. The tracking unit includes an electromagnetic emitter which is capable of transmitting the vehicle positio n data and which is periodically energized at a selected activation rate FEM while the vehicle is moving to transmit at least the vehicle position data. A motion sensor is employed for generating data indicative of vehicle motion. A tracking unit controller receives the vehicle motion data and controls the navigation set and the emitter based upon the vehicle motion data so that wh en the vehicle is stationary, each of activation rates FG and FEM can be respectively decreased by a predetermined factor, thus reducing the overall power consumption of the tracking unit. The tracking unit controller is further designed to return to activation rates FG and FEM upon the motion sensor sensing renewed vehicle motion, thus avoiding loss of vehicle positio n data during times of renewed vehicle motion.
Patent CA-2165887-C (CA)
Inventor: HERRMANN WOLFGANG A
IPC: C07F5/00
Filed: 1995-12-21
Granted: 1999-07-27
Abstract: The invention relates to new complexes of the lanthanides (elements having the atomic numbers from 57 to 71) with heterocyclic carbenes as complexing ligands.
Patent CA-2167676-C (CA)
Title: Method for controlling the head of a drilling or core-drilling device and apparatus for carrying out this method
Inventor: LAMINE ETIENNE
IPC: E21B47/01
Filed: 1994-07-20
Granted: 2005-05-24
Abstract: Electrodes (2) are provided in a drill bit (1), or alternatively, in a corin g bit, to measure variations in formation resistivity (R) surrounding an earth borehole. Three orthogonal accelerometers (4A, 4B, 4C) are also provided in the dri ll bit (1), or in the coring bit, to monitor the dynamic behavior of the bit (1 ) as functions of radial, axial and tangential accelerations.
Patent CA-2168938-C (CA)
Title: A thermoplastic polyurethane resin
Inventor: KAUFHOLD WOLFGANG
IPC: C08G18/40
Filed: 1996-02-06
Granted: 2010-06-01
Abstract: A thermoplastic polyurethane resin prepared by reacting an isocyanate, a polyol and a reactive polyolefin, and a chain extender, is disclosed. It was surprisingly and unexpectedly found that the inventive resin forms compatible blends with polyolefins.
Patent CA-2174308-C (CA)
Title: Self-adjusting stop means for cushioning
Inventor: STOECKER JUERGEN
IPC: F16B5/06
Filed: 1996-04-16
Granted: 1999-10-12
Abstract: The present invention relates to a self-adjusting stopper for dampening movable parts, in particular for lids, hoods or the like in automotive vehicles, comprises a stop ele-ment, a casing, a clamping element and a coupling element in cooperative relationship. Initially the damping element pro-jects a maximum distance out of the casing. By closing the part which has to be dampened, for example the hood of an automotive vehicle, the damping element becomes displaced into the casing. After opening the lid the clamping element is locked to the damping element by rotating the coupling element to axially adjust the damping element within the casing. A further adjustment is not required. According to the invention, the damping element will be automatically adjusted in a proper axial position by just closing and opening the lid.
Patent CA-2176972-C (CA)
Title: Key agreement and transport protocol with implicit signatures
Inventor: VANSTONE SCOTT A
IPC: H04L9/32
Filed: 1996-05-16
Granted: 2008-11-25
Abstract: A key establishment protocol between a pair of correspondents includes the generation by each correspondent of respective signatures. The signatures are derived from information that is private to the correspondent and information that is public. After exchange of signatures, the integrity of exchange messages can be verified by extracting the public information contained in the signature and comparing it with information used to generate the signature. A common session key may then be generated from the public and private information of respective ones of the correspondents.
Patent CA-2177322-C (CA)
Title: Anchoring cartridge for hardening multi-component composition
Inventor: HEIN BERND
IPC: E21D20/02
Filed: 1996-05-24
Granted: 1999-06-29
Abstract: An anchoring cartridge for a hardening multi-component composition on the basis of a resin hardening by the reaction of radicals has an inner cartridge element containing the resin component and fillers and an outer cartridge element containing the hardener component.  To allow the anchoring rod to be put in position by hand by driving the anchoring rod in fully, without spurting out or running out occurring during the operation of putting the rod in position, and to enable fillers to be used in both components to increase the strength, the inside width of the annular space between the inner and outer cartridge elements corresponds  at least to the wall thickness of a cartridge element and at most to 5% of the external diameter of the outer cartridge element.  Further, the resin contains a thixotropic agent which increases the viscosity of the resin to such an extent that the filler parts are suspended in the resin.  The hardener component, which is present with liquid and optionally fillers and a thixotropic agent as a pasty mixture, completely fills the annular space between the inner and outer cartridge elements.
Patent CA-2177629-C (CA)
Title: Wellhead production blowout preventer ram
Inventor: LAM TONY M
IPC: E21B33/06
Filed: 1996-05-29
Granted: 1999-09-21
Abstract: The rubber layer on the ram is reinforced at the sealing areas by forming ribs on the ram core. The ribs function to resist extrusion of the rubber layer when the blowout preventer is subjected to high pressure from the well.
Patent CA-2191541-C (CA)
Inventor: NOZAKI SATOSHI
IPC: A41D13/11
Filed: 1996-11-28
Granted: 1999-08-03
Abstract: A disposable sanitary mask comprises a covering panel section adapted to cover the wearer's nose and mouth and a pair of ear-looping panel sections which are respect-ively formed of nonwoven fibrous fabric. The covering panel section has a central rigid region formed vertically extending across a front surface thereof and side rigid regions defined vertically extending across the front surface thereof, a rigidity of these regions being higher than that of the remaining region of the covering panel section. Therefore, the mask can keep at least the covering panel section from losing its shape.
Patent CA-2192761-C (CA)
Title: A cooling powdering method with low temperature gas flow circulation
Inventor: KO HSI-CHIA
IPC: B02C19/18
Filed: 1996-12-12
Granted: 2000-02-01
Abstract: A  cooling powdering method with low  temperature  gas flow   circulation  including  a  gas   expansion   cooling circulation  system, a low temperature gas  flow  powdering system  and  a  material  refrigerating  system.  The   gas expansion cooling circulation system serves to provide cold capacity for the low temperature gas flow powdering  system and   material  refrigerating system  and  the  gas   flow powdering machine serves to powder the material. The method is  able to powder those materials which are impossible  or difficult to be powdered at normal temperature,  especially for resilient polymer materials and high resilient bodies.
Patent CA-2194786-C (CA)
Inventor: REED JOHN DOUGLAS
IPC: H04B17/00
Filed: 1996-03-08
Granted: 2002-09-10
Abstract: A method and apparatus for measuring a characteristic of a fading signal received using two or more branch diversity receivers (100) is presented. Th is fading characteristic is proportional to the speed of the user. In a first embodiment the number of times the antenna branches change in a selection diversity process is counted (160), and the result is scaled (170) for imbalance between the branches. The output of a fading quality estimator (180), indicative of the fading and generally proportional to the speed, is thereby obtained.
Patent CA-2196903-C (CA)
Title: Method and apparatus for efficient handoffs by mobile communication entities
Inventor: BALACHANDRAN KUMAR
IPC: H04W36/30
Filed: 1995-08-08
Granted: 2003-10-07
Abstract: A method and apparatus used in the context of a digital cellular communication network for allowing a remote unit to determine the conditions under which a handoff should occur and the procedure to be followed. The method and apparatus of the present invention controls handoffs in a manner which causes the boundaries of a cell within a digital cellular network to remain relatively well defined and to very closely conform to the boundaries of a cell of an advanced mobile phone system with which the cellular digital packet data system is associated. The present invention also reduces the effort required by a remote unit within a cellular digital packet data communication system when attempting to change channels. Primary and Secondary Thresholds are defined in accordance with the present invention. These Thresholds aid in determining when a link should be handed off (and thus define the boundaries of cells of the system) and which channels are appropriate candidates to attempt to scan to track a hop or determine when to initiate a handoff. The Thresholds represent performance thresholds which can be used to determine whether the airlink can reliably transmit information.
Patent CA-2199306-C (CA)
Inventor: ASAI KOHICHI
IPC: A61J1/00
Filed: 1997-03-06
Granted: 2004-04-20
Abstract: A rubber plug for a drug vessel has at least one convexity formed on a surface of the rubber plug so that the rubber plug is prevented from sticking together, joining together under compression or joining together under suction with another rubber plug of a similar type. The convexity may preferably be a grain pattern formed on at least a part of the surface of the rubber plug by transferring same from a mold. A rubber plug for a drug vessel may also be composed of a leg portion and a head portion formed integrally with the leg portion and may have at least one convexity on at least one of the leg portion and the head portion. Use of rubber plugs according to the present invention can prevent sticking together, joining together under compression or joining together under suction thereof during their washing, sterilization and drying treatments and also during their conveying step, thereby making it possible to substantially improve the productivity including a step in which drug vessels such as vials are sealed by the rubber plugs.
Patent CA-2205658-C (CA)
Title: Biodegradable absorbent pads and method and apparatus for making
Inventor: GERSTENBERGER ROLAND W
IPC: A61F13/20
Filed: 1995-11-24
Granted: 2001-02-27
Abstract: A biodegradable feminine hygienic interlabia pad (12) which includes a biodegradable inner absorbent sliver (13) made of cotton or rayon and a biodegradable outer cover (15, 34) also made of cotton or rayon. The edges (78, 80) of the outer cover (15, 34) are sewn together to form a hollow cylinder. Also disclosed are a method and an apparatus for manufacturing the pads (12). A rope (16) of absorbent material and a web of the outer covering (34) are brought together in a die (26). The die (26) in the form of a hollow tube (50) and a tapered guide (56) which causes the outer covering to enclose the absorbent material (16) with the seam for the outer covering (34) being on the inside of the pad (12). The die (26) includes an opening (66, 76) for exposing the adjacent edges of the web (34) so that the edges (78, 80) may be sewn together. Also adjacent panels (86, 88) are formed by sewing the pad (12) itself.
Patent CA-2217875-C (CA)
Inventor: TAYLOR JAMES WAYNE
IPC: C08F8/30
Filed: 1996-04-12
Granted: 2002-12-31
Abstract: L'invention porte sur des polymères à fonctionnalité allyle comportant des fractions pendantes d'énamine et, de préférence, possédant également des groupes pendants méthacrylate. La présence de ces groupes dans le polymère autorise le déroulement d'une réaction de réticulation par voie radicalaire durant la formation de film et procure des revêtements dotés d'une résistance supérieure aux solvants. Il est possible d'obtenir des particules contenant une amine en phase aqueuse, en faisant réagir de la propylène-imine avec des latex contenant un acide carboxylique. On fait ensuite réagir ces latex ayant acquis une fonctionnalité amine à la température ambiante avec du méthacrylate d'acéto-acétoxyéthyle, par exemple. Au cours des études menées sur un durcissement à la température ambiante ou à la chaleur, des films transparents ont fait preuve d'une augmentation importante de la résistance aux solvants, de la fraction constituant un gel et de la densité de réticulation.
Patent CA-2224615-C (CA)
Title: Nozzle for atomizing liquid in two phase flow
Inventor: EMBERLEY DOUGLAS A
IPC: C10G9/00
Filed: 1997-12-11
Granted: 2001-07-31
Abstract: Mixing means, for producing a flow mixture of oil and steam, is combined with an atomizing nozzle to provide a nozzle assembly which produces a jet of very fine oil droplets. The nozzle assembly is used in conjunction with a reactor, such as a fluidized bed coker. The mixing means comprises a pipe, external of the reactor, having separate, spaced apart inlets for oil and steam. The steam inlet is upstream of the oil inlet. A reducing diameter nozzle is positioned in the pipe bore between the inlets, for accelerating the steam. The steam contacts the oil and turbulently moves down the pipe bore to produce what is known as a "bubbly flow" mixture. The mixture is fed to the nozzle, which is internal of the reactor. The nozzle has: an inlet; a first contraction section of reducing diameter for accelerating the flow, preferably to supersonic velocity, whereby the droplets are reduced in size; a diffuser section of expanding diameter wherein the mixture decelerates and a shock wave may be induced; a second contraction section operative to accelerate the mixture more than the first contraction section; and an orifice outlet for producing a jet or spray. The nozzle assembly has been shown to reduce droplet size from about 12,000µm to about 300µm.
Patent CA-2224820-C (CA)
Inventor: GATZEMEYER JOHN J
IPC: A01M1/20
Filed: 1997-04-17
Granted: 2000-12-26
Abstract: An electrically activatable fumigating device and the method of its use. The device is adapted to be useable with vertically or horizontally oriented, wallmounted electrical receptacles as well as receptacles mounted in horizontal countertops, all without the need for moving parts in the device. This is accomplished by the relative angle of the electrical plug to the longitudinal axis of a well contained within the body of the fumigating device from the mouth of which active ingredient is expelled by chemical reaction. Use of a modular heating assembly aids in allowing economical manufacture so that the fumigating device may be made inexpensively enough to be a single use device, with a self-disabling, single use, electrically activated heating means.
Patent CA-2227947-C (CA)
Title: Process for decreasing the acid content and corrosivity of crudes
Inventor: SAVAGE DAVID W
IPC: C09K3/00
Filed: 1996-08-23
Granted: 2007-03-20
Abstract: The invention relates to processes for treating acidic crudes or fractions thereof to reduce or eliminate their acidity and corrosivity by addition of suitable amounts of Group IA or Group IIA oxides, hydroxides and hydrates. The process has the additional benefits of reducing materials handling problems associated with treating acidic crude oils using liquid solvents and in reducing emulsion formation.
Patent CA-2233744-C (CA)
Title: Method and compositions for decorating vitreous articles with radiation curable inks having improved adhesion and durability
Inventor: LUO DEXIN
IPC: C09D171/00
Filed: 1998-03-31
Granted: 2004-06-29
Abstract: A primer composition for radiation curable inks comprising 75-99.99% water, 0.01-20% of a silane coupling agent having the general formula: (see formula I) and 0.001-20% of a nonionic surfactant which is a polyethylene glycol glyceryl fatty acid ester; a method for pre-treating a vitreous article prior to application of organic radiation curable decorative indicia with said primer composition; and a method for applying decorative indicia to the surface of a vitreous article comprising the steps of (a) applying to the surface of the article a primer composition containing a solvent and a coupling agent capable of forming a chemical bond between the surface of the vitreous article and an organic, radiation curable composition, (b) applying an organic radiation curable ink composition over the primer composition in a desired design, (c) curing the organic ink composition on the article by exposing it to the radiation by which it is curable, thereby causing the coupling agent to form a chemical bond between the surface of the vitreous article and the cured organic ink composition; and a method for pre-treating vitreous articles.
Patent CA-2237777-C (CA)
Inventor: WIKE PAUL S
IPC: B61F5/44
Filed: 1996-11-19
Granted: 2001-08-28
Abstract: A steerable truck apparatus (20) for railroad cars for providing the controlled and uniform yawing of the axles (27, 28) of the truck. The truck apparatus (20) provides for a yawing response which is linear substantially throughout the range of movement of the axles (27, 28). The truck is further  configured with pivotally supported pedestals (23, 24, 25, 26) for equalized  load distribution. An improved axle bearing construction accommodates pivoti ng of the axle ends, and a damping apparatus provides stiffness in the steering  response to reduce hunting of the wheels during straight-line travel.</SDOAB >
Patent CA-2249098-C (CA)
Inventor: SHERIDON NICHOLAS K
IPC: G02B26/02
Filed: 1998-09-30
Granted: 2001-12-04
Abstract: An electric type paper display having memory properties, rapid response times and multi-optical property display with an image of high quality is made. Each display element is wholly in contact with liquid in a cavity and the surface of each display element has a portion with a most positive charge. When an electrical field is applied from the outside, each display element is turned correspondingly to the direction of the electric field and, then electrically migrated through the liquid and attached to the inner surface of the cavity. Among multiple display surfaces of each display element an optical property is selected according to an image signal and is visible through a transparent support to an observer. Afterwards, the attached state of each display element, i.e., its display state is held by the action of an attraction force such as van der Waals force and electrostatic force acting between the circumferential surface of the display element and the inner surface of the cavity, even after the electric field is removed.
Patent CA-2251100-C (CA)
Title: Current interrupter for electrochemical cells
Inventor: SULLIVAN STEVEN K
IPC: H01M50/583
Filed: 1997-04-10
Granted: 2003-09-23
Abstract: A current interrupt mechanism for electrochemical cells is disclosed. A thermally activated current interrupt mechanism (38) is integrated into an e nd cap assembly (10) for an electrochemical cell. The thermally responsive mechanism preferably includes a free floating bimetallic disk (40) or a meltable mass of material (175) to break an electrical pathway within the en d cap assembly. The end cap assembly also includes integrated therein a pressu re responsive current interrupt mechanism (48). The pressure responsive mechani sm activates to sever electrical contact between a diaphragm (70) and a plate (80) within the end cap assembly (10) to prevent current from passing throug h the cell, and may include a diaphragm (70) which ruptures when there is extreme gas pressure buildup.