baber/WOPTO huggingface dataset:
Patent CA-2128023-C (CA)
Inventor: THOMAS TODD R
IPC: C09K8/38
Filed: 1994-01-14
Granted: 1999-08-31
Abstract: Au cours de l'enlèvement de matières particulaires d'un puits de forage, tel que le forage pneumatique permettant la récupération d'hydrocarbures, un mélange d'un agent moussant amphotère et, généralement, d'un agent tensioactif anionique est utilisé. Une solution aqueuse de ce mélange, présentant un pH d'au moins 9,5, est utilisée pour générer une mousse permettant d'enlever les matières particulaires; la mousse est ensuite affaissée par l'introduction d'un acide afin de réduire le pH à une valeur inférieure à 4, les particules sont mécaniquement enlevées, le pH est ramené à une valeur supérieure à 9,5, et la solution moussante est réintroduite dans le puits. Cette solution peut être utilisée à plusieurs reprises; des pertes partielles de l'agent moussant, au cours du procédé, peuvent aisément être remplacées au cours de chaque cycle. Des agents tensioactifs cationiques peuvent être utilisés au lieu d'agents anioniques, le moussage et l'affaissement de la mousse étant régulés de façon à présenter des pH opposés. Des économies peuvent être réalisées en ce qui concerne l'eau, les produits de forage chimiques et les tours de décantation et autre servant à enlever des matières particulaires de la mousse.
Patent CA-2137792-C (CA)
Title: Process for the removal of gaseous impurities from a stream of hydrogen
Inventor: SUCCI MARCO
IPC: C01B3/58
Filed: 1993-05-24
Granted: 2003-04-08
Abstract: A process for the removal of impurities from a stream of hydrogen, containing more easily removable impurities, like for instance CO x, and more hardly removable impurities, mainly consisting of nitrogen and/or methane, wherein:        A. Said stream is first brought into contact, at 5-50°C, with a material containing nickel and/or Ni compounds, wherein at least 196 b.w. of the overall amount of Ni is present in reduced form;        B. The stream from (A), still containing said more hardly removable impurities, is brought into contact with a non-evaporable Better material at a higher temperature.
Patent CA-2142918-C (CA)
Inventor: HENDRICK LOUIS W
IPC: H01P5/02
Filed: 1995-02-20
Granted: 1998-09-15
Abstract: A  right  angle  waveguide  junction  for  a  microwave multiplexer is provided including a step in one of the waveguides for improved electrical response.  A rectangular waveguide manifold (10) is coupled to a filter (12) which includes  a  coupling  iris  (14)  and  a  circular  cavity resonator (16).   The  circular  cavity resonator  is  a circular waveguide with two ends closed by a metal wall. The structure of the waveguide multiplexer includes a step change (18) in the rectangular waveguide (10) height which controls  the  electrical  response  properties  of  the junction.
Patent CA-2150237-C (CA)
Inventor: FARBER BRUCE M
IPC: C08J7/046
Filed: 1994-01-07
Granted: 2002-07-30
Abstract: A process for improving the impact resistance of a coated plastic substrate,  particularly those polymers having a high refractive index, comprising applying an aqueous polyurethane dispersion as a primer layer to at least one surface of the plastic substrate, at least partially curing the aqueous polyurethane dispersion by air drying at ambient temperature, applying a coating composition over the polyurethane primer layer, and curing the coating composition to form an abrasion resista nt hard coat. Preferably, the aqueous polyurethane dispersion is air dried at ambient temperature for less than one hour before application o f the abrasion resistant coating composition. The process provides an impact enhancing, abrasion resistant coating system having strong interfacial adhesion that is preferably transparent for application onto preferably transparent plastic articles, such as ophthalmic lenses and safet y eye wear.
Patent CA-2151292-C (CA)
Title: Integrated network switch with variable functions
Inventor: MEUGGE SHAD WILLIAM
IPC: H04Q3/545
Filed: 1995-06-08
Granted: 2007-03-20
Abstract: An integrated switch with ports for connection to peripheral devices and switching apparatus for selective switching in frame formats between ports, each port occupying a fixed timeslot. The signals are in full or half-full format. Each time slot has a memory address in a multi-frame information memory with memory cells at memory locations. A writer pointer designates a memory location. The port arranged in groups associated with a peripheral devices. A plurality of processors associated with a system having a backplane with multiple groups.
Patent CA-2153994-C (CA)
Inventor: BRAIG JAMES R
IPC: G01N21/35
Filed: 1994-01-21
Granted: 2004-05-11
Abstract: A method and apparatus for monitoring glucose, ethyl alcohol and other blood constituents in a noninvasive manner. The measurements are made by monitoring infrared absorption of the desired blood constituent in the long infrared wavelength range. The long wavelength infrared energy generated by source (400) is passed through a finger (406). To prevent the high energy source from burning or causing patient discomfort, shutter (404) and bandpass filters (410) cause only short bursts of energy to be sent through the finger with a very low duty cycle and low optical bandwidth. The bursts are further synchronized by shutter (404) with systole and diastole of the cardiac cycle so that only two pulses are sent per heart beat, one during diastole and one during systole. The detection signals measured at detectors (412) during application of these bursts of energy are used to calculate the concentration of blood constituents in accordance with a polynomial equation.
Patent CA-2155196-C (CA)
Inventor: MATUDA YOSHIYA
IPC: B01D46/52
Filed: 1994-01-31
Granted: 1999-10-19
Abstract: To provide an air filter that does not cause holding members to peel even in a high temperature envi-ronment, and which can be produced quickly and easily. An air filter (10) comprises a filter member (12), hold-ing members (14) disposed at both longitudinal side edges of the filter member (12), and non-woven fab-ric members (16) for fixing the filter member (12) and the holding mem-bers (14). The filter member (12) comprises a non-woven fabric of ther-moplastic microfibers. The holding members (14) have a bending resis-tance sufficient to maintain its shape and hold the filter member (12) in its pleated state. The non-woven fab-ric members (16) have a heat resis-tance with a melting point not lower than 90 °C and a temporary fixing ability capable of being disposed at the edge portions of the filter mem-ber (12) without using a jig.
Patent CA-2159066-C (CA)
Inventor: KIRITSY EMMETT R
IPC: G02B6/44
Filed: 1995-09-25
Granted: 1997-01-21
Abstract: A tube slitting tool for cutting a buffer tube and allowing access to one or more individual optical fibers or ribbons containing optical fibers encased therein, includes a first holder and a second holder in slidable contact with one another, each holder having a channel which when said holders engage forms a passageway therebetween to receive the buffer tube. Cutting blades are mounted to the holders and extend into the passageway such that when the fully-engaged tube slitting tool moves relative to the buffer tube, the tube is cut longitudinally, facilitating access to the optical fibers or the ribbons within the buffer tube.
Patent CA-2159720-C (CA)
Inventor: FORTIN YVAN
IPC: A61C8/00
Filed: 1995-02-08
Granted: 1995-08-17
Abstract: A teeth prosthesis for an upper maxilla includes an infrastructure (1), a suprastructure (3), and an assembly for a removable attachment of the suprastructure with the infrastructure. The infrastructure includes at least three implants (5), one connection bar (13), and an assembly for removably fastening the connection bar with and against each head of the implants. The suprastructure includes a first member (19) made of cast of metal or alloy having an intrados provided with an opening giving access to a housing of such size and depth to allow the housing of the connection bar therein, a second member (25) immovably attached with the first member, and a set of teeth (31) immovably attached with the first member (19) and the second member (25). The assembly includes two first fastening members, and a second fastening member.
Patent CA-2160232-C (CA)
Title: Dual temple system for eyewear
Inventor: CONWAY SIMON M
IPC: G02C3/00
Filed: 1994-04-15
Granted: 1999-03-30
Abstract: The present invention provides a dual temple system, useful in eyewear frames, having in combination a paddle temple member and a cable temple member. Eyewear frames having a pair of dual temple systems are also provided.
Patent CA-2166985-C (CA)
Inventor: PERION DIDIER
IPC: G01V5/12
Filed: 1994-07-13
Granted: 2005-11-15
Abstract: La présente invention se rapporte à un procédé et à un dispositif pour sa mi se en oeuvre, destinés à détecter su moins un objet comportant un matériau donné, et non accessible à la vue. Le procédé, qui comprend les étapes consistant en ce que: on irradie l'objet par un faisceau collimaté de rayons X (21) correspondant à une plage d'énergie contenant un seuil de photoionisation; on détecte le faisceau transmis après passage au travers dudit objet (24); est caractérisé en ce qu'en outre: on détermine une fonction continue représentative de l'atténuation ou de la transmission des rayons X en fonction de l'énergie; e t on recherche sur 1a courbe représentant ladite fonction continue représentative de l'atténuation ou de la transmission, au voisinage de l'énergie correspondant audit seuil de photoionisation, l'existence d'un point d'inflexion, caractéristique de la présence dudit matériau. Cette invention s'applique, par exemple, aux inspections de bagages dans les aéroports.
Patent CA-2168935-C (CA)
Inventor: GRIPPI NICHOLAS A
IPC: B01L3/00
Filed: 1996-02-06
Granted: 2000-06-27
Abstract: A  blood  collection  assembly  includes  an  evacuated container having an open end with a puncturable stopper therein.  A liquid impermeable receptacle in the container contains an additive and is removably immobilized in the stopper.    In a method for preparing a blood sample for analysis, the stopper is punctured by a cannula connected to a blood supply.   The cannula is then advanced until it contacts and dislodges the receptacle from the stopper causing the additive to be released directly into the container where it mixes with incoming blood.
Patent CA-2173540-C (CA)
Inventor: LEE RON C
IPC: F17C9/00
Filed: 1996-04-04
Granted: 1999-04-06
Abstract: A cryogen delivery apparatus for delivering cryogen in a saturated state includes a vessel to contain the cryogen in liquid and vapor phases.  The vessel has a headspace region and a heat exchanger  located within the headspace region for indirectly exchanging heat between the vapor located within the headspace region and a liquid stream composed of the liquid phase of the cryogen.  In case the cryogen is introduced into the vessel as a subcooled liquid, the vapor will condense into the liquid phase and the subcooled liquid will be converted into a saturated liquid.  The saturated liquid will then be discharged from a liquid outlet connected to the heat exchanger.  In the event the liquid enters the vessel as two-phase flow, the vessel will act as a phase separator.  A branched supply line is provided having a liquid inlet branch connected to a bottom liquid inlet of the vessel so that a supply stream composed of  the cryogen flows into the vessel. A vapor inlet branch of the branched supply line is connected to an inlet to the headspace.  A heating element is provided to heat the vapor inlet branch so that liquid cryogen is vaporized to replenish vapor within the headspace that is depleted through condensation or discharge from a vapor discharge outlet of the vessel.
Patent CA-2173823-C (CA)
Inventor: PFEIFER THOMAS
IPC: A61J1/00
Filed: 1996-04-10
Granted: 2006-06-20
Abstract: An apparatus is proposed which serves for transferring a liquid component situated in one container (1) into another container (2) under reduced pressure which receives a solid or liquid component. Using a two-step mechanism, a reliable, ordered transfer is achieved by the closure of the container (1) containing the liquid component first being penetrated by a cannula (8) and then a cannula holder (9) holding the cannula being displaced by means of this container in the direction of the other container (2) receiving the solid or liquid component and by this means its closure being penetrated by the cannula. According to the invention, the cannula holder (9) receiving the cannula is designed as a lamellar body orientated perpendicularly to the longitudinal direction of the hollow body (3) receiving the two containers, which cannula holder is joined via retainer bridges (13) to the inner wall (30) of the hollow body, the retainer bridges being able to be ruptured by applying a manual force which is greater than the penetration force of the cannula on penetrating the Closure stopper of the container (1) opened first. An apparatus designed in such a manner can be handled in an uncomplicated manner with a structurally simple construction. The proposed apparatus receiving the two Containers (1) and (2) enables, by an outer packaging (14), the components to be combined and subsequently stored under sterile conditions.
Patent CA-2177192-C (CA)
Inventor: BAILEY FRED W
IPC: F04D29/36
Filed: 1996-05-23
Granted: 2005-06-28
Abstract: A variable pitch propeller has a two part hub assembly, each part of the hub has generally semi-cylindrical half sockets formed therein for receiving the cylindrical blade root shanks of individual fan blades. The sockets have enlarged portions, defining semi-annular shoulders, which receive an enlarged portion of the blade root shank so as to prevent axial movement of the fan blade. The half sockets of at least one part of the hub further have recessed portions for receiving locking insert members having a curved upper surface and a longitudinal keyway formed therein. A radially projecting key extends longitudinally along at least an a portion of the blade root shank and fits into the keyway formed in the locking insert member when the fan blade is placed into the half socket containing the locking insert member. The two parts of the hub assembly are coupled to clamp the fan blades within the aligned half sockets. With the key of the root shank disposed in the keyway of the locking insert member, pitch-wise rotation of the blade is prevented, the orientation of the keyway in the locking insert defining the pitch angle of the blade.
Patent CA-2178186-C (CA)
Title: Heating device for a small appliance
Inventor: THIES DONALD E
IPC: A47J31/053
Filed: 1996-06-04
Granted: 2000-04-25
Abstract: Disclosed is a new heating device for an appliance such as a coffee urn.  Such device has a main heating element and a spaced-apart warming element, both of which are embedded in a common casting.  The device may be mounted to and removed from an appliance as a single unit and when mounted, the main heating element is closer to the liquid container than the warming element.  The elements are vertically spaced from one another and each element has flattened coil portions contacting one another.  Such flattened portions minimizes the height of the device.  The new device also has one or more "points" for mounting auxiliary components such as a grounding wire and/or a thermostat.
Patent CA-2183102-C (CA)
Title: Polymerization catalyst systems, their production and use
Inventor: JEJELOWO MOSES OLUKAYODE
IPC: C08F4/6192
Filed: 1995-02-13
Granted: 2005-08-23
Abstract: This invention is generally directed toward a supported catalyst system useful for polymerizing olefins. The invention particularly relates to a supported metallocene catalyst system that does not require an activator or cocatalyst for the polymerization of olefins.
Patent CA-2183555-C (CA)
Title: Reproduction and utilization of functional human tissue
Inventor: TANAGHO EMIL A
IPC: A61K35/12
Filed: 1995-01-24
Granted: 2009-12-22
Abstract: The present invention provides a method of growing smooth muscle cells in a host with the purpose of maintaining natural cellular function to reproduce lost or damaged smooth muscle tissue. In this method, smooth muscle cells are freed from isolated smooth muscle tissue, then cultured and injected into the host in combination with an extr acellular matrix. The invention also provides a method of enriching the amount of smooth muscle cells in a mixture by differential adh esion.
Patent CA-2185955-C (CA)
Inventor: ISHIKAWA YOHEI
IPC: H01P7/10
Filed: 1996-09-19
Granted: 2000-07-18
Abstract: A dielectric resonator capable of adjusting a resonance frequency, reducing occurrence of a mode jump if it is applied to an oscillator and being manufactured at a low cost. The dielectric resonator has a pair of upper and lower opposing conductive plates; a dielectric substrate disposed between the conductive plates; a first electrode formed on one surface of the dielectric substrate, the first electrode having a first opening; a second electrode formed on anothersurface of the dielectric substrate, the second electrode having a second opening corresponding to the first opening so that a resonator is formed by a portion of the dielectric substrate disposed between the first and second openings; and a variable capacitor located in a portion of the dielectric substrate in which an applied electromagnetic field is confined in and around the resonator.
Patent CA-2186906-C (CA)
Inventor: VALLS VALLS ANDRES
IPC: B65H54/56
Filed: 1996-09-30
Granted: 2002-04-23
Abstract: Machine destinée à la fabrication de mèches pour présentoirs de coiffeurs, composée d'un disque giratoire, alimenté par une ou plusieurs bobines de fil, qui tourne mû par un servosystème de positionnement avec un moteur brushless qui facilite le bobinage de ces fils qui sont ensuite retenus en position, coupés et/ou soudés à l'aide de dispositifs spécifiques inclus dans la machine, l'ensemble étant contrôlé par un microprocesseur entraîné par un moteur pas à pas, un des modules de rétention des fils situés à la périphérie du disque devant fondamentalement, à l'effet de ce certificat, être mobile dans le sens radial, pour réduire la circonférence de bobinage à la fin de cette opération, en éliminant la tension créée sur le fil, alors qu'un dispositif d'aplanissement est accouplé aux extrémités des mèches quand on les soude.
Patent CA-2191648-C (CA)
Inventor: BOODE-BOISSEVAIN KARIN
IPC: A21D2/02
Filed: 1996-11-29
Granted: 2002-01-29
Abstract: A dough-composition, suitable for the preparation of a bread-roll, that is microwavable in a susceptor, comprises: 100%      flour 2-10% yeast 0-4%      salt 0-5%      fat 0.1-20%   bread-improver 0-5%      sugar 0.05-2%   monoglycerides with IV > 20 45-65%    water
Patent CA-2201749-C (CA)
Title: Stable aqueous alfa interferon solution formulations
Inventor: YUEN PUI-HO C
IPC: A61K47/18
Filed: 1995-10-10
Granted: 1999-06-15
Abstract: Stable aqueous solution formulations containing alfa-type interferon, e.g., interferon alfa-2a and interferon alfa-2b, a buffer to maintain the pH in the range of 4.5-7.1, polysorbate 80 as a stabilizer, edetate disodium as a chelating agent, sodium chloride as a tonicity agent, and m-cresol as an antimicrobial preservative and which maintain high chemical, physical and biological stability of the alfa-type interferon for an extended storage period of at least 24 months are disclosed.
Patent CA-2201818-C (CA)
Inventor: BELLEFEUILLE ALAIN
IPC: G01B3/12
Filed: 1997-04-04
Granted: 2005-06-21
Abstract: A measuring roller system for a tree processing machine having a measuring roller and roller mounting means for mounting the roller on the frame of the machine for swinging movement toward or away from the frame. The roller is rotatably mounted on the roller mounting means for rotation caused by axial movement of a tree past the roller while in contact with the roller and while being processed by the machine. A sensor is positioned to measure the amount of rotation of the roller to provide a measure of length of tree fed axially past the roller. The roller system has sensor moving means to rotate the sensor in unison with the roller when the roller is rotated by transaxial movement of the tree during axial movement.
Patent CA-2202335-C (CA)
Inventor: HALEY RICHARD P
IPC: C09D163/00
Filed: 1997-04-10
Granted: 2000-05-23
Abstract: Thermosetting powder coating compositions adapted to form a grainy textured finish on heat sensitive substrates, especially wood products, such as particle board, conductive particle board, and medium density fiber board, without damaging the substrates comprise an epoxy resin, particularly bisphenol A type epoxy resins having low viscosities, either a catalytic curing agent comprising an imidazole, a substituted imidazole, or adduct of an imidazole or substituted imidazole and an epoxy resin, or a curing agent comprising an adduct of a polyamine and an epoxy resin, or a combination of the catalytic curing agent and curing agent, a texturing agent, a flow control agent, optional extender, and optional pigment. The thermosetting powder coatings have a cure time/temperature ranging from about 30 seconds at about 350°F peak substrate temperature down to about 20 minutes at about 225°F peak substrate temperature which provides for either a rapid cure or low bake temperature to prevent excessive heat exposure to the heat sensitive substrate, resulting in substantially no physical or chemical degradation of the heat sensitive substrate during baking. The powder coatings are applied to heat sensitive substrates, especially wood products, through electrostatic spraying onto the substrate followed by heating to cure the textured finish uniformly on the surfaces and edges of the substrate. Electrostatic spraying is performed with a triboelectric or corona spray gun and heat curing is performed with a high intensity infrared oven, a convection oven, or combination. Coated heat sensitive substrates having continuous grainy textured finishes that are excellent for hiding substrate surface defects and later appearing scratches are obtained.
Patent CA-2203059-C (CA)
Inventor: CHIARELLI SHIRLEY A
IPC: A45D19/04
Filed: 1997-04-18
Granted: 2006-01-24
Abstract: There is provided a new and useful portable hair washing apparatus. The apparatus comprises, in combination, a basin defined by a front wall, opposite facing side walls, a rear wall and a floor. The basin has neck support means and head support means, as well as drainage means. There is also provided a flexible drainage hose releasably connectable to the drainage means and a receptacle for receiving waste water and other debris from the hose. There is further provided cover means releasably securable to the basin and, when in position secured thereto, the cover means and basin constitute a carrying case.
Patent CA-2204919-C (CA)
Inventor: JOST PHILIPPE
IPC: C08L83/06
Filed: 1995-11-15
Granted: 2003-09-23
Abstract: Multifunctionalised polyorganosiloxanes including, per molecule, .alpha. at least one functional siloxyl unit (I) (R)¿a?YSi(O)¿(3 - a)/2?, wherein R is particularly a C¿1-6? alkyl radical, Y is a C¿1-15? alkoxyl radical and a is 0, 1 or 2; .beta. at least one other functional siloxyl unit (II) (R)¿b?WSi(O)¿(3 - b)/2?, wherein W is hydrogen or a group connected to the silicon via a Si-C bond and selected from an alkyl, aralkyl or halogenated or polyhalogenated aryl group; a polyether oxide group; en epoxidised alkyl group; an alkoxyalkyl group; a hydroxylated, carbonylated or esterified alkyl group; a phenol group; and an alkoxysilyl group; and .gamma. optionally at least one unit (III) (R)¿c?(H)¿d?Si(O)¿((4 - (c + d))/2?, wherein c is 0, 1, 2 or 3, d is 0 or 1 and c + d <= 3. The alkoxyl functionality Y is inserted onto a suitable polyhydrogenoorganosiloxane by means of a dehydrogenation/condensation reaction from the alcohol from which Y is derived. Then the non-hydrogeno functionality W is inserted by means of a hydrosilylation reaction from the olefin compound from which W is derived. Said multifunctionalised polyorganosiloxanes may be used as anti-adherence modulators in silicone compositions.