baber/WOPTO huggingface dataset:
Patent CA-2112143-C (CA)
Inventor: OLMSTEAD BRUCE RINGSBY
IPC: E21B10/56
Filed: 1993-12-22
Granted: 2005-07-26
Abstract: A tool component comprises an abrasive compact layer bonded to a cemented carbide substrate along an interface. The abrasive compact layer has a working surface, on a side opposite to the interface. This working surface is flat and presents a cutting edge or point around its periphery. A recess extends into the substrate from the interface. The recess has a side wall and a base both of which are located entirely within the carbide substrate. The recess has a portion located in the interface. The area of this portion is at least 25 percent the area of the interface. A material, different to that of the substrate, fills the recess and is bonded to the substrate. This material will typically be abrasive compact of the same type as the abrasive compact layer, or a cemented carbide which has characteristics different to that of the substrate.
Patent CA-2118211-C (CA)
Title: Adaptive multifrequency reactive muffler
Inventor: EGHTESADI KHOSROW
IPC: F01N9/00
Filed: 1992-04-15
Granted: 1998-09-15
Abstract: An active noise cancellation muffler for automotive and industrial use as shown in the figure comprises a muffler chamber, an internal plate with an attached pipe mounted inside the muffler chamber dividing the muffler chamber into first and second chambers, a controller system including a linear motor/actuate, a motor/actuator controller and an error microphone for moving the partition plate in both directions (~.DELTA.~) to change the relative sizes of the first and second chambers.
Patent CA-2120717-C (CA)
Title: Digital sample rate conversion
Inventor: LYON DAVID
IPC: H04N7/24
Filed: 1992-10-09
Granted: 2003-12-16
Abstract: A rate converter for digitally converting the sample rate of a signal, has a first digital filter for deriving an intermediate sig-nal at increased sample rate and a second digital filter for deriving an output signal at a decreased sample rate relative to that of the intermediate signal. The first filter is of relatively high order serving to double the frequency. Because the frequency change is a power of two, the aperture characteristic is straightforward and implementation is simple even at high order. The second filter is of relatively low order so that implementation is simple even with a time-varying aperture characteristic. The low order of the sec-ond filter does not however degrade the overall frequency characteristic.
Patent CA-2126442-C (CA)
Inventor: IRIE TOSHIYUKI
IPC: A61M1/34
Filed: 1992-12-30
Granted: 1999-02-02
Abstract: A thrombosis filter (I, II) that has an improved filtering function and can be securely anchored at a desired location and be removed through an endovenous route even after the growth of neointima. The thrombosis filter (I, II) of this invention includes a first and a second filtering and holding unit, each unit including a coupling mechanism (41, 42) at its outer extremity in the form of a hook, and a plurality of resilient struts (31, 32) which radiate from a central hub (51, 52) and lie on the surfaces of cones. The units are interconnected by a core shaft (1) which consists of a compression spring and a pair of core wires.
Patent CA-2127459-C (CA)
Inventor: THIENPONT BERNARD
IPC: A23L5/10
Filed: 1993-01-19
Granted: 2004-09-21
Abstract: A method for preserving bulk fresh foodstuffs by heat treatment, wherein the foodstuffs are passed through a low-pressure chamber (3) and exposed to a counter-flow of steam which condenses on the foodstuffs and thereby delivers the heat required to heat them.
Patent CA-2128756-C (CA)
Title: Preparation of friction elements and compositions therefor
Inventor: BROTZ RALPH T
IPC: F16D69/02
Filed: 1994-07-25
Granted: 2005-11-01
Abstract: A method for preparing a friction element from rod-like particles of friction ingredients includes preheating the particles, to a temperature between 150°F and 375°F, introducing a predetermined amount of the preheated rod-like particles into a friction element mold, and compressing the preheated rod-like particles under heat and pressure to form the friction element.      Compositions for forming the rod-like particles are disclosed.
Patent CA-2132147-C (CA)
Inventor: JEANVOINE PIERRE
IPC: B32B17/10
Filed: 1994-09-15
Granted: 2004-05-18
Abstract: La présente invention concerne des compositions de verre aptes à la réalisation de vitrages susceptibles notamment d'être utilisés dans le domai ne architectural ou montés sur des véhicules automobiles et industriels. La composition de verre selon la présente invention comprend exprimée en pourcentages pondéraux de 0,75 à 1,4 % de fer total exprimé sous la forme de Fe2O3, de 0,25 à 0,32% de fer ferreux sous la forme de FeO et qui présente, sous une épaisseur comprise entre environ 3 et 3,3 millimètres, un facteur de transmission lumineuse globale sous illuminant A (TL A) au moins égal à 70%, un facteur de transmission énergétique globale (T E) inférieur à environ 46% et un facteur de transmission de radiations ultraviolettes inférieur à environ 25%.
Patent CA-2133475-C (CA)
Inventor: KIEPEN HORST F
IPC: B06B1/06
Filed: 1994-01-14
Granted: 1998-07-14
Abstract: An ultrasound catheter is disclosed for providing substantially real-time images of small cavities.  The ultrasound catheter is characterized by separate and distinct materials for backing the transducers and for carrying the electronics components.  The separate materials comprise an electronics carrier meeting the requirements for holding the integrated circuitry of the ultrasound device and a backing material displaying superior characteristics relating to reducing ringing and minimizing the effect of other sources of signal degradation in the transducer assembly.  Also, in accordance with the present invention, a technique is described for connecting the conductor lines of the separate transducer assembly and electronics body.
Patent CA-2135984-C (CA)
Inventor: VAN MILL MICHAEL D
IPC: A01B71/02
Filed: 1994-11-16
Granted: 1996-08-27
Abstract: A conservation tillage tool, including a main frame and a rear frame pivotally mounted on the main frame disposed to support a number of soil working implements in sequence.  The main frame is supported by ground wheels attached to the rear section of the main frame.  The wheels are movable with respect to the main frame to move the latter between a raised transport position and a number of lowered working positions.  A tongue and hitch unit connect the main frame to a prime mover, and a leveling mechanism operably interconnects the main frame, ground wheels and tongue for maintaining the main frame level at any of its positions.  A spring-cushioned linkage operably interconnects one of the implements at the front of the main frame with one of the implements mounted on the rear frame for simultaneously raising and lowering those two implements between transport and working positions.  A suspension linkage operates in concert with the spring-cushioned linkage for permitting the rear implement to raise according to terrain independent of the front implement.
Patent CA-2137743-C (CA)
Title: Low decarburization spring steel
Inventor: MOTOMURA HIROHARU
IPC: C22C38/00
Filed: 1994-12-09
Granted: 1999-11-16
Abstract: A low decarburization spring steel consisting essentially of, in weight percentages, 0.40 to 0.75%      C, 0.15 to 2.50% Si, 0.30 to 1.20% Mn, 0.005 to 0.100%      Al and 0.005 to 0.100% Se, and optionally at least one selected from the group consisting of 0.50 to 2.50%      Ni, 0.20 to 1.50% Cr, 0.05 to 1.50% Mo and/or at least one selected from the group consisting of 0.01 to 0.50% V and 0.01 to 0.50% Nb, the balance being Fe and inevitable impurities. The spring steels of this invention considerably reduce decarburization during hot working or heat treatment without recourse to anti-decarburizing agents or special heat treatment equipment.
Patent CA-2138712-C (CA)
Inventor: MONETTI GIOVANNI
IPC: A47J41/00
Filed: 1994-12-21
Granted: 1998-09-22
Abstract: An isothermal container for warm foodstuffs, comprising a tray  of  thermally  insulating  material  provided  with recesses housing respective food vessels, and a cover of thermally insulating material  detachably secured onto the tray.  For each of the  food vessels  a  respective rigid covering member  is provided for, having an annular soft sealing  gasket   formed  with  integral  resilient  thrust projections. The tray   further incorporates an electric-heating-resistor thermoregulation system,  and is equipped with a transport basket, having a handle and to which a forced closure member of the cover relative to the tray is anchored.
Patent CA-2141096-C (CA)
Inventor: DAUGHERTY DAVID W JR
IPC: B60D1/06
Filed: 1995-01-25
Granted: 1999-07-06
Abstract: A slackless drawbar comprising a female member with one end engaging an end of a car body center sill and another end extends outwardly from the center sill end.  A cavity formed in such other end defined by inner surfaces of the back wall, top wall and pair of side walls and open at a bottom and outer end thereof.  Openings are formed through each side wall.  A male member includes a first end movably disposed in such cavity and a second end.  An aperture is formed through such male member first end.   A portion of a spherical shaped member is disposed in such aperture.  A pair of shaft members extend from outer surfaces of such spherical member.          A portion of each shaft member is disposed in respective side wall openings.  Each shaft member has a flat surface formed thereon.  A race having a portion thereof disposed in such aperture and secured to such male member.  The race inner surface is disposed around the spherical member.  A pair of wedges, a surface of one wedge engages one of such shaft members flat surfaces and another surface of such one wedge engages a flat vertical surface formed on one side wall adjacent a portion of such first opening and a surface of the other wedge engages another of such flat surfaces formed on such shaft members and another surface of such another wedge engages a flat vertical surface formed on a second side wall adjacent a portion of such second opening. A securing device secures such second end of such male member to a second end of another male member.
Patent CA-2143670-C (CA)
Inventor: HOFFMANN KURT
IPC: C08K3/22
Filed: 1993-09-14
Granted: 2004-12-28
Abstract: Single-material recycled thermoplastics from commercial and industrial waste can be stabilized against thermooxidative degradation by adding a combination of a sterically hindered phenol with an organic phosphite or phosphonite and an inorganic compound from the series consisting of metal oxides, hydroxides and carbonates.
Patent CA-2146580-C (CA)
Inventor: NORMANDEAU LAWRENCE J
IPC: E21B43/38
Filed: 1995-04-07
Granted: 2004-06-29
Abstract: A gas separator for a submersible centrifugal pump or well has hardened cases on the components exposed to well fluid within the interior of the gas separator. The gas separator has a cylindrical sidewall with a bore. A shaft driven by a motor of the pump extends through the bore. An inducer is located in the bore for applying pressure to the fluid. In one type, a spinning guide vane imparts swirling motion for the well fluid to separate as it flows through a straight-through bore section. In another type, a tubular barrel locates in the sidewall, defining an intake chamber. The intake port in the sidewall is located above the intake port in the barrel, causing a reverse direction flow to separate gas from the liquid.
Patent CA-2151726-C (CA)
Inventor: VAN SAARLOOS PAUL PHILLIP
IPC: A61B3/10
Filed: 1994-09-21
Granted: 2006-06-06
Abstract: An improved photokeratoscopic method and apparatus for measuring corneal curvature and topography. The principle of parallax is used by generating a reference light point (LP) outside of the relevant plane of a ring generator (3), such that the relative apparent position of the reference light point (LP) with respect to the projected light rings provides a calibration reference that varies with distance of a cornea from the photokeratoscope. More particularly, the invention determines the coordinates in space and the tangent angle of the reflection point on the corneal surface of the image of the reference light point (LP). This information defines the actual corneal topography at the reflection point, without making assumptions. These coordinates and tangent angle can be used to determine the actual distance ( d) from the photokeratoscope lens to the apex of the cornea. An exact value of (d) permits better accuracy in calculating the central corneal radius of curvature and corneal topography. The present invention can be used with any known photokeratoscope geometry, including planar, sphericl, or conical ring generators. The algorithm for computing (d), and for calculating the central corneal radius of curvature and corneal topography, is shown in pseudocode, and may easily be implementedas a computer program.
Patent CA-2151859-C (CA)
Title: Catalyst for purifying exhaust gas from lean burn engine and method for purification
Inventor: INUI SATOSHI
IPC: B01J23/89
Filed: 1995-06-15
Granted: 2002-02-26
Abstract: A catalyst  for  the purification of  an exhaust  gas emitting from a lean burn engine using gasoline as a fuel thereof and a method for the purification are provided.   The catalyst has deposited on an inert carrier a mixture of a catalytically active component comprising palladium, an oxide of  at  least  one  alkali  metal  selected  from  the  group consisting of potassium, sodium, rubidium, and cesium, and an oxide of at least one iron family metal selected from the group consisting of cobalt, nickel, and iron with a refractory inorganic oxide.   This catalyst is used either alone or in combination with an oxidizing catalyst or a three-way catalyst for the purification of the exhaust gas from the lean burn engine using gasoline as a fuel thereof.
Patent CA-2153108-C (CA)
Inventor: RUDOLPH BERND
IPC: H05B41/295
Filed: 1995-06-30
Granted: 2003-06-17
Abstract: To operate one or more serially connected low-pressure discharge lamps, typically fluorescent lamps, a preheating circuit is provided to preheat the electrodes of the lamps (E1, E2, E3, E4), which changes from low-impedance to high-impedance state after the lamps have been preheated by controlling a semiconductor switch (Q3) in the heating circuit.  In accordance with the invention, to eliminate reliance on the resistances of the lamp filaments themselves, which are subject to variation from lamp-to-lamp due to manufacturing tolerances, and later on, to changes due to aging of the lamp, and to provide for reliable switching of the semiconductor switch, a sensing impedance element (Z), which may be an ohmic resistor or a capacitor (Z', Z"), is serially connected to the switching path of the semiconductor switch (Q3) which, typically, is a field effect transistor (FET).  The voltage drop across the series circuit formed by the impedance element (Z, Z', Z") and the semiconductor switch (Q3) is set by suitable dimensioning of the impedance element, to be sufficient to retain the main switching path of the semiconductor switch in low-impedance state when it carries full heater current, that is, is already in low-impedance state. To change over to high-impedance state, control signals to the semiconductor switch are removed, for example by shunting a resistor (R2) in a voltage divider, thus turning the semiconductor switch (Q3) OFF.
Patent CA-2155714-C (CA)
Title: Solution for fabrication of electron-emitting devices, manufacture method of electron-emitting devices, and manufacture method of image-forming apparatus
Inventor: TOMIDA YOSHINORI
IPC: C23C18/12
Filed: 1995-08-09
Granted: 2000-08-01
Abstract: In a solution for forming electron-emitting regions of electron-emitting devices, the solution contains a metal carboxylate expressed by the following general formula (I), an organic solvent and/or water; [C n X2n+2-k(COO)k]m M k  or  [C6X6-k(COO)k]m M k, where X is hydrogen or a halogen;      M is a metal; k is an integer from 1 to 4; m is an integer from 1 to 4; and n is an integer from 0 to 30, provided that when n is 0, k is 1 or 2.      In a manufacture method of electron-emitting devices each provided between electrodes with a conductive film including an electron-emitting region, a process of forming the conductive film includes a step of coating and calcining the above solution. An image-forming apparatus is manufactured by using the electron-emitting devices. Variations in sheet resistance values of electron-emitting region-forming thin films and characteristics of the electron-emitting devices are reduced.
Patent CA-2159485-C (CA)
Title: Anti-oxydant alkylaryl polyether alcohol polymers
Inventor: GHIO ANDREW J
IPC: A61K31/765
Filed: 1994-03-30
Granted: 2004-05-18
Abstract: A method and medicament for the inhibition of oxidants comprising administering a treatment effective amount of alkylaryl polyether alcohol polymers to a chemical or biologic system in need thereof. The medicament is preferably administered by aerosolization into the mammalian respiratory system. The medicament may also be applied to the mammalian skin. Preferably, the medicament includes a physiologically acceptable carrier which may be selected from the group consisting of physiologically buffered saline, isotonic saline, normal saline, petrolatum based ointments and U.S.P. cold cream.
Patent CA-2162491-C (CA)
Inventor: LEE WHAY CHIOU
IPC: H04L12/56
Filed: 1995-02-09
Granted: 2000-02-22
Abstract: The unique method of the present invention provides efficient aggregation of link metrics for a sub network in a communication network having a plurality of interconnected subnetworks that consist of nodes and links. Thus, link metric values are summarized on a full-mesh topology and encoded by a spanning tree topology. The method encodes the link metric information contained in full-mesh topology with a minimum compromise in the capability to recover it.
Patent CA-2166909-C (CA)
Inventor: JULKE ELIAS
IPC: H01B19/04
Filed: 1996-01-10
Granted: 2004-09-14
Abstract: This method is based on an insulator having at least one component coated with electrically insulating material, in which a primer solution is applied onto the at least one component, in which the applied primer solution is dried to form a primer coat (12), after which the electrically insulating material is applied onto the primer coat (12).      The intention is to provide a method for the production of an insulator having electrically insulating material applied on a primer coat, in which the uniformity of the applied primer coat can be checked in a comparatively simple manner. This is achieved by carrying out the following procedural steps before application of the electrically insulating material: a) dissolving a fluorescent material in the primer solution, b) exposing the primer coat (12) using a light source, c) detecting the points on the surface of the at least one component that are defectively covered with the primer coat (12), and d) if appropriate, applying primer solution onto the points on the surface of the at least one component that are detected as being defectively covered.
Patent CA-2167577-C (CA)
Inventor: KREUSER JOHN A
IPC: C09J129/00
Filed: 1994-03-07
Granted: 2005-05-17
Abstract: On décrit une composition fusible thermoadhésive sensible à l'eau possédant des propriétés très utiles pour la réalisation d'articles à usage unique. La composition adhésive contient entre environ 5 % et environ 95 % en poids de poly[vinylméthyléther]; entre environ 5 % et environ 70 % en poids d'une résine adhésive; et entre environ 5 % et environ 35 % en poids d'un plastifiant hydrosoluble.
Patent CA-2170999-C (CA)
Title: Dispositif de rangement de fibres optiques
Inventor: MACKEN LUK JOZEF
IPC: G02B6/44
Filed: 1994-09-02
Granted: 2004-09-28
Abstract: L'invention concerne une platine d'assemblage de fibres optiques comprenant: 1) des premiers et seconds orifices au travers desquels les fibres optiques peuvent passer; 2) un tambour de platine d'assemblage placé par rapport à ces orifices de telle manière qu'une fibre passant entre ceux-ci est contrainte par la surface externe du tambour de se courber selon un rayon de courbure minimum au moins égal au rayon de courbure critique de cette fibre; et dans laquelle le tambour est creux permettant à une extrémité libre de la fibre de passer de l'un des orifices vers l'intérieur du tambour et d'y être recourbée selon un rayon de courbure minimum supérieur à celui auquel elle subit un dommage permanent.
Patent CA-2172375-C (CA)
Inventor: TOMLINSON CHARLES E
IPC: C23C22/48
Filed: 1994-10-14
Granted: 2004-08-10
Abstract: A conversion coating for aluminum finstock includes zirconium, fluoride and potassium ions. The coating is preferably at a pH belo w about 2.0, and may optionally include polyphosphates, tannin, boron and zinc. A sequestering agent to complex dissolved iron, and a crystal deformation agent such as ATMP are also preferably included.
Patent CA-2179526-C (CA)
Inventor: MAKITA HIDEAKI
IPC: F02M37/32
Filed: 1996-02-16
Granted: 2004-06-15
Abstract: A fuel passage tube 7, 107, 207, 307 is connected to the fuel oil supply path or line 4 interconnecting a fuel tank 2 and the combustion chamber of an internal combustion engine 3A or a boiler 3B. The tube holds in it far infrared ceramic pieces 5, 105, 205, 305 or ferromagnetic plates 6, 106, 206, 306, or both of them. This improves, remarkably in comparison with prior art, the combustion efficiency of the fuel oil burned in the combustion chamber of the engine room 3A or boiler 3B. It is consequently possible to save the fuel consumption and greatly reduce the harmful matter in the exhaust gas.
Patent CA-2181467-C (CA)
Title: Photo-thermal therapeutic device and method
Inventor: BERTWELL DALE E
IPC: H01L25/13
Filed: 1995-01-20
Granted: 1999-07-06
Abstract: An apparatus, for simultaneous or selective treatment of an area of the skin and adjacent subcutaneous structure of a patient utilizing photo energy and therapeutic heat, which includes a plurality of juxtaposed diodes. Each diode has a longitudinal axis and is capable of projecting a non-coherent cone of light which overlaps the cone of light from each juxtaposed diode so that the light completely covers the treatment area. A flexible pad or appliance holds the diodes in juxtaposed position with each other. Each is held in contact with the skin and has a longitudinal axis which is in substantially perpendicular relationship to the skin. A resistor heats each diode, which acts as a heat sink, so that the treatment area of the skin and the adjacent subcutaneous structure of the mammal receive light and thermal treatment simultaneously. An adjustable control varies the light intensity of the diodes and the amount of heat generated by the resistor in a selected and controlled manner. Indicia is provided for visibly indicating the setting of the control means so that repetitive treatment is possible. A grid system can be established over at least a portion of the surface of the skin of a population of patients to establish a database for establishing treatment parameters for future patients.