baber/WOPTO huggingface dataset:
Patent CA-2145151-C (CA)
Inventor: WIEDENMANN WALTER
IPC: A01K63/04
Filed: 1995-03-21
Granted: 2001-09-04
Abstract: A filter for aquarium operating in accordance with the lifting-lowering principle comprises a housing with at least one filter compartment for a filter material, a pump which aspirates water after passing through the filter compartment through a suction conduit and supplies the water back into an aquarium, at least one auxiliary chamber supplied with water and a float-controlled valve device controlling an outlet of the auxiliary chamber and communicating with the suction conduit, an auxiliary housing in which the auxiliary chamber is provided and supplied with water filtered after passing of the filter compartment in accordance with the principle of communicating pipes. A passage which is connected with the suction conduit has a valve opening which is alternatingly closeable and openable by a float-controlled valve closing member of the valve device. In another embodiment, a supply is formed as a passage which passes through the filter compartment and is sealed from the latter and opens in a bottom chamber provided in the housing under a lowermost one of the filter compartments, so that the aspiration of the supplied water is performed from below and from the bottom chamber through the filter compartment upwardly with accompanying filtering.
Patent CA-2147870-C (CA)
Inventor: CURRAN WILLIAM WINGATE
IPC: D02G1/20
Filed: 1993-11-02
Granted: 2004-02-24
Abstract: There is disclosed a method for making a textile strand comprising passing two filamentous strands together through a jet device which commingles filaments of the two strands and then subjecting the thus commingled strands to a drawing step in which at least one of the strands is drawn to a stable drawn state.
Patent CA-2149605-C (CA)
Title: Process cartridge remanufacturing method and process cartridge
Inventor: SATO MINORU
IPC: G03G21/18
Filed: 1995-05-17
Granted: 2000-04-25
Abstract: A process cartridge remanufacturing method for a process cartridge detachably mountable to a main assembly of an image forming apparatus includes the steps of providing a new photosensitive drum; providing a new toner-development frame including a new toner frame having a toner containing portion for containing toner, a new development frame having roller mounting portion for mounting a developing roller for supplying toner to said photosensitive drum, wherein said toner frame and said development frame are welded with a new removable toner seal therebetween for preventing the toner in said toner containing portion from leaking out; preparing a drum frame to be reused having a drum mounting portion for mounting the photosensitive drum; supplying toner into said toner containing portion of said new therefore; mounting the developing roller to said new development frame; mounting the photosensitive drum to the drum frame to be reused; rotatably engaging said new toner-development frame and said drum frame to be reused.
Patent CA-2153090-C (CA)
Inventor: SHKOLNIKOV YURY
IPC: B25C1/04
Filed: 1995-06-30
Granted: 1998-10-20
Abstract: In a powered fastener-driving tool including a nosepiece arranged to guide a fastener driven by the tool and an actuator movable between an extended position and a retracted position and biased toward the extended position for disabling the tool unless the actuator is moved toward the retracted position, an improved mechanism is disclosed for positioning the tool relative to an opening in a workpiece to be fastened to a substrate.  The mechanism comprises a probe having a tapered end adapted to extend into the opening of the workpiece for aligning the nosepiece with respect to the opening of the workpiece so that a fastener can be precisely driven through the opening of the workpiece.  The mechanism further comprises a pivot pin for mounting the probe pivotally to the actuator via an arm mounted fixedly to the actuator and a bracket mounted fixedly to the arm.  Thus, the probe is mounted so as to provide for conjoint movement of the probe with the actuator between the extended and retracted positions and so as to permit pivotal movement of the probe relative to the actuator, over a limited range of pivotal movement, between a fastener-engaging position wherein the probe is engageable by a driven fastener and a pivotally displaced position wherein the probe is displaced pivotally from the fastener-engaging position so as to permit a driven fastener to be driven past the probe.
Patent CA-2162893-C (CA)
Title: Carte de credit munie d'une loupe
Inventor: BOEDE ROBERT H
IPC: G06K19/04
Filed: 1994-08-19
Granted: 2002-03-05
Abstract: Une carte pour transactions financières adaptée à la lecture d'informations mémorisées extérieurement, comporte une base rigide sensiblement non-pliable rectangulaire, ainsi que des informations lisibles par une machine inscrites sur la base. Cette base rigide est munie d'une loupe.
Patent CA-2169380-C (CA)
Title: The preparation of pyrazole and its derivatives
Inventor: MERKLE HANS RUPERT
IPC: C07D231/12
Filed: 1994-08-13
Granted: 2004-10-19
Abstract: A process is disclosed for preparing pyrazole and its derivatives having formula (I), in which the residues R1, R2, R3 and R4 stand fot hydrogen, halogen, nitro, carboxyl, sulfonyl or C-organic residues, from alpha,beta-unsaturated carbonyl compounds having formula (II) and from hydrazine or hydrazine derivatives having formula (III). The proces s is characterised in that an alpha,beta-unsaturated carbonyl compound having formula (II) is at first reacted without additional diluting agents with hydrazine or a hydrazine derivative having formula (III), and the thus obtained reaction mixture is reacted in an additional reaction step with a mixture of sulphuric acid and iodine or a iodine- or hydrogen iodide-releasing compound.
Patent CA-2171981-C (CA)
Title: Ester fluids with high temperature stability
IPC: C10M135/28
Filed: 1994-08-15
Granted: 2003-11-04
Abstract: An ester-containing reaction product of a carbonyl compound, preferably an acyl halide and a thiodiphenol has high temperature antioxidant properties. The reaction product is useful as a synthetic lubricant base fluid or as an antioxidant additive when used in minor amounts of 0.01 to 10 wt.% in a mineral oil or hydrocracked oil lubricant base fluid. The reaction product can also be used in a fuel.
Patent CA-2173700-C (CA)
Title: Casing conveyed flowports for borehole use
Inventor: WILSON DENNIS R
IPC: E21B43/263
Filed: 1996-04-09
Granted: 2001-06-05
Abstract: A wellbore completion system utilizes casing conveyed devices to establish a fluid communication path between a downhole formation and the casing string. Normally closed flowports are mounted in the wall of the casing pipe string and are extended toward contact with the downhole formation after the casing is set. Explosives in the flowports are activated by a separately conveyed activation system which produces a pressure wave to detonate the explosives and establish fluid communication between the casing and formation.
Patent CA-2176514-C (CA)
Inventor: SHEDLO ALLAN
IPC: H04W16/18
Filed: 1995-08-08
Granted: 1999-09-14
Abstract: La présente invention concerne un procédé d'allocation de ressources de communication dans un système de communication. Le procédé consiste à récupérer, du système de communication, l'allocation des ressources du système de communication en cours (402); à identifier, pour une cellule à réadapter, les ressources de communication allouées qui ne satisfont pas aux critères d'allocation (410); à identifier des ressources de communication candidates dans les systèmes de communication qui satisfont aux critères d'allocation (416); à allouer les ressources de communication candidates à la cellule (424); à répéter ces étapes pour chaque cellule à réadapter (404) et à transmettre la nouvelle allocation de ressources au système de communication (406).
Patent CA-2177490-C (CA)
Inventor: STERMAN WESLEY D
IPC: A61B17/56
Filed: 1994-11-18
Granted: 2006-06-27
Abstract: The invention provides devices and methods for performing less invasive surgical procedures with an organ or vessel. One embodiment provides a method of closed chest surgical intervention within an internal cavity of a patient's heart. The patient's heart is arrested and cardiopulmonary by-pass is established. A scope (25) extending through a percutaneous intercostal penetration in the patient's chest is used to view an internal portion of the patient's chest.  The penetration is formed in a wall of the heart using a cutter (110) introduced through the percutaneous penetration.  An interventional tool is then introduced through a cannula (22) positioned in the penetration.  The interventional tool is inserted through the penetration to perform a surgical procedure within the internal cavity under visualization by a scope (25). A cutting tool is introduced into the patient's left atrium from a right portion of the patient's chest to remove the patient's mitral valve. A replacement valve (36) is then introduced through the intercostal space and through the penetration in the heart and the replacement valve is attached in the mitral valve position.
Patent CA-2178118-C (CA)
Title: Centrifugal reverse-osmosis desalination unit incorporating an annular membrane cartridge
Inventor: MOILLIET ANTONY
IPC: B01D63/16
Filed: 1996-06-04
Granted: 2002-06-25
Abstract: This invention relates to an apparatus for separating an original feed solution such as sea-water into a product solution of decreased concentration (relatively fresh water) and an exhaust solution of increased concentration. The apparatus includes an annular reverse osmosis membrane means, contained in an annular pressure vessel that is housed in a rotor assembly. The rotor is arranged to spin on an axle and is located within an evacuated shroud. The apparatus further includes supply means for supplying the original feed solution to the reverse osmosis membrane, exhaust means at an outermost radius of the reverse osmosis membrane for removing the exhaust solution from the reverse osmosis membrane, product removal means at an innermost radius of the reverse osmosis membrane for removing the product solution from the reverse osmosis membrane and means for creating a pressure differential across the reverse osmosis membrane to separate the original feed solution into the product solution and the exhaust solution. The supply means and the exhaust means are relatively axially and radially spaced such that the feed solution travels along a combined radial and axial flow-path.
Patent CA-2181675-C (CA)
Title: Alkaline cleaners based on alcohol ethoxy carboxylates
Inventor: MAN VICTOR FUK-PONG
IPC: C11D3/33
Filed: 1995-01-13
Granted: 2004-09-28
Abstract: An alkaline cleaner composition comprising an alkyl or alkylaryl ethoxy carboxylate, a strong chelating agent and a source of alkalinity, its manufacture and use in removing greasy soil from hard surface areas is described. The compositions are especially effective in removing lime-soaps in such greasy soil especially on institutional and commercial kitchen floors.
Patent CA-2185780-C (CA)
Inventor: STAFFORD STEPHEN M
IPC: F21V25/12
Filed: 1996-09-17
Granted: 2007-04-10
Abstract: An emergency lighting fixture with backup battery power for illuminating aimable lamps or a plurality of lamps mounted in a single housing in response to loss of power. In the preferred embodiment, the lighting fixture has three independently adjustable lamps mounted within a single housing. The lamps are adjustable about vertical and horizontal axes for maximum aiming capabilities. The housing is preferably an explosion proof housing with a glass globe for mounting in hazardous locations or areas. The glass globe allows the lamps to be aimed through 360° so that light transmitted by the lamps can be aimed to a specific area adjacent the lighting fixture. The lighting fixture also preferably has its backup batteries mounted within the housing along with a charger for maintaining the batteries at full charge.
Patent CA-2188487-C (CA)
Title: System and method of improving the signal to noise ratio of bar code and indicia scanners that utilize fluorescent inks
Inventor: BERSON WILLIAM
IPC: G06K7/12
Filed: 1996-10-22
Granted: 2000-03-28
Abstract: A bar code and/or indicia scanning method that is able to determine what light was emitted from an upper layer invisible bar code and/or upper layer invisible indicia and what light was reflected back to the detector from avisible lower layer bar code and/or visible lower layer indicia. The detecting is "blind" to the spectra of the excitation source. Rather than differentiate between the exciter and emitter in the spectral domain, this invention differentiates between the exciter and the emitter in the time domain. The latency and persistence of the phosphorescent pigments of the invisible ink are used so that the detected signal is only the signal emitted by the upper layer invisible ink after the light source is turned off. Illumination and detection are synchronized to reduce the effects of reflection to zero so that the detector need not be chosen to be blind to the exciter. The foregoing is particularly suited to LED and laser illumination where the light source may be easily turned on and off.
Patent CA-2196115-C (CA)
Inventor: ROBERTSON DEREK GUY
IPC: H01S3/06
Filed: 1997-01-28
Granted: 2002-10-22
Abstract: The invention is directed to an apparatus for housing a linearized optical fiberamplifier (LOFA) circuit.  The apparatus includes a body member, preferably madeof foam plastic material, that defines cavities to receive the components of the LOFA circuit including a dispersion compensation fiber (DCF) reel. The apparatus includes opposing arcuate members about which optical fibers coupling components of the LOFA circuit are looped. Retaining rings fitted over the first and second arcuate members and supported by at least one surface defined in the body member, can beused to separate each optical fiber from others to provide organization and to prevent entanglement of the optical fibers. A reel receptacle member receives and holds an active fiber (AF) reel of the LOFA circuit. The reel receptacle member can be placed between the arcuate members to be held therebetween The body member can be fitted into a case, preferably made of a rigid, lightweight material such as aluminum, that protects the LOFA circuit from damage due to shock or impact.
Patent CA-2206772-C (CA)
Inventor: ANDRUIK DONALD R
IPC: B08B9/02
Filed: 1990-02-28
Granted: 2000-11-14
Abstract: Hydrocleaning apparatus for pipelines and the like includes a frame capable of advancing lengthwise of the pipeline, such frame carrying a plurality of liquid jetting modules which, in use, are disposed in an array around the pipeline surface to enable cleaning of the entire surface to be effected.  The frame can be opened up to allow the apparatus to be fitted to or removed from a continuous pipeline.  The frame arrangement and module mounting system are designed to provide good cleaning efficiency and proper orientation of the various modules in spite of pipeline irregularities including out-of-round conditions, uneven coating thicknesses and wrinkles.  A pivoting module mount helps to maintain cleaning efficiency in the case where thick coatings are being removed.  The frame drive wheels are disposed forwardly of the modules to avoid contamination of the cleaned surfaces by deposits that may build up on the wheels.  A shroud system connected to the modules prevents substantial escape of contaminating liquids and debris into the environment.
Patent CA-2208587-C (CA)
Title: Method for preparing a bitumen/elastomer composition, and use thereof as a road surfacing
Inventor: PLANCHE JEAN-PASCAL
IPC: C08G81/02
Filed: 1996-10-16
Granted: 2006-12-12
Abstract: Functionalised elastomer/bitumen compositions with a broad plasticity range are produced by contacting a bitumen or bitumen mixture with an elastomer, a functionalising agent and optionally a peroxide compound at 100-230  DEG C under stirring conditions. The functionalising agent is a thiolcarboxylic acid having 3 or more carbon atoms, a thiolcarboxylic acid ester and specifically a disulphide having carboxylic groupings or carboxylic esters. Said compositions may be used either directly or in diluted form to produce bituminous binders for making road surfacings, coated materials and sealing coatings.
Patent CA-2211508-C (CA)
Inventor: REYNELL CHRISTOPHER PAUL
IPC: C05F15/00
Filed: 1996-01-26
Granted: 2007-05-29
Abstract: A process for digesting solid waste material comprises collecting the waste from a first location and transporting it to a second location where a fluids digestion vessel is located. At least some of the fluid fraction from the fluids digestion vessel is fed to the solids digestion vessel so that anaerobic digestion of the solid waste occurs in the solids digestion vessel. At least some of the digested solids waste is recovered, and the solids digestion vessel is preferably returned whence it came. The invention also provides apparatus for use in process.
Patent CA-2218915-C (CA)
Inventor: BERGE ARNULF
IPC: B22D39/00
Filed: 1996-04-19
Granted: 2001-10-09
Abstract: The invention relates to a method for measuring the amount of liquid metal contained in tiltable casting furnaces. It is established and maintained a reference curve for the amount of metal in the furnace as a function of the furnace tilting angle at a reference level for metal at the furnace outlet opening and that the amount of metal contained in the casting furnace at any furnace tilting angle during the casting process is read from the reference curve after correction due to deviation of actual metal level from the reference metal level.
Patent CA-2220865-C (CA)
Inventor: BROWN DAVID E
IPC: G01F23/72
Filed: 1996-05-08
Granted: 2002-07-16
Abstract: Ensembles d'éclairage pour indicateurs visuels qui indiquent le niveau de fluide dans un conteneur. Un ensemble de ce type comporte un ensemble (14) éclairage arrière pour un indicateur (12) visuel de niveau de fluide doté de fenêtres (18) d'observation transparentes avant et arrière permettant d'observer le niveau de fluide contenu dans ledit indicateur. Ledit ensemble d'éclairage comprend (i) un panneau (34) à fibres optiques pratiquement plat situé à proximité de la fenêtre d'observation transparente arrière; (ii) un mécanisme (36) destiné à attacher le panneau plat à fibres optiques sur l'indicateur visuel de fluide à proximité de la fenêtre d'observation transparente arrière; et (iii) une source d'éclairage (31) optiquement couplée au panneau plat à fibres optiques. La source d'éclairage est une source lumineuse remplie de gaz fonctionnant à moins de 25 volts c.a. qui est enfermée dans une enceinte (30) étanche et antidéflagrante et qui est couplée au panneau à fibres optiques par un câble (74) à fibre optique. Ledit ensemble d'éclairage peut également être utilisé pour Bclairer directement un indicateur magnétique de niveau de fluide qui indique le niveau de fluide d'un conteneur (96) auquel il est attaché.
Patent CA-2221214-C (CA)
Inventor: LI GUANG Y
IPC: H04W56/00
Filed: 1997-11-17
Granted: 2001-08-07
Abstract: L'invention est constituée par un circuit de poursuite pour un récepteur, par une méthode de poursuite deporteuse et par une infrastructure sans fil. Ce circuit de poursuite comprend 1) un sous-circuit quidétermine l'erreur de synchronisation dans un groupe de contrôle de courant d'alimentation de la porteuseà poursuivre et 2) un sous-circuit de rétroaction qui transmet au sous-circuit précédent un signal de gainqui est fonction du débit de données dans la porteuse et du rapport signal sur bruit, de sorte que la vitessede convergence du circuit de poursuite dépend du débit de données dans la porteuse.
Patent CA-2222487-C (CA)
Inventor: HUANG TAI-LONG
IPC: E06B9/326
Filed: 1997-11-27
Granted: 2004-08-03
Abstract: An operating device for a Venetian blind includes a hollow positioning tube, a stationary roller, a releasable clamping unit, and an elongated sleeve. The positioning tube confines a receiving space that is adapted to permit extension of pull ropes of the Venetian blind thereinto. The stationary roller is disposed in the receiving space and is mounted rotatably to the positioning tube. The releasable clamping unit includes a movable roller suspended in the receiving space at one side of the stationary roller such that the stationary roller and the movable roller are adapted to permit extension of the pull ropes therebetween, and a biasing spring for biasing the movable roller toward the stationary roller so that the movable roller cooperates with the stationary roller in order to be adapted to clamp the pull ropes therebetween. The elongated sleeve is mounted coaxially on and slidable axially relative to the positioning tube and is associated operably with the releasable clamping unit so that the movable roller is moved away from the stationary roller for releasing the pull ropes when the elongated sleeve is moved downwardly relative to the positioning tube.
Patent CA-2223243-C (CA)
Inventor: HOLBROOK RICHARD
IPC: A47C1/032
Filed: 1996-06-05
Granted: 2004-06-01
Abstract: A synchronous tilt control mechanism is provided for a chair (1). The chair (1) includes a base (2), a seat (4), a torsion spring (7), a first slide member (10) and a second slide member (11). The base (2) further includes a tilt control housing (3) mounted thereon. The back (5) includes a forwardly extending support member (6). The seat (4) and back (5) are pivotably attached to the tilt control housing (3). The torsion spring (7) has a forwardly extending leg (8) and a rearwardly extending leg (9). The forwardly extending leg (8) is mounted to the tilt control housing (3).
Patent CA-2227281-C (CA)
Inventor: LEVI SHLOMO
IPC: C12Q1/68
Filed: 1996-07-16
Granted: 2008-09-23
Abstract: Binding between two members of a recognition pair, e.g. antigen-antibody is determined by utilizing a probe comprising a piezoelectric crystal with electrodes on two opposite faces of the crystal. The crystal carries one or more metal plates which may be the same or different than said electrodes, the metal plates having immobilized thereon a first member of a recognition pair. Binding of a second member of the recognition pair to the first member, or dissociation between the two members and release of the second member from the probe, causes a change of immobilized mass which results in a change to the probe's resonance frequency. Said immobilized members may be immobilized on the surface of said metal plates by means of a linking group, having the following general (I): Z-R1-Q wherein Z represents a sulphur-containing moiety which is capable of chemical association with, attachment to or chemisorption onto said metal, R1 represents a connecting group; Q is a functional group which is capable of forming a covalent bond with a moiety of said first member of the recognition pair. The immobilized member may have or be linked to an isomerizable group which changes its isomerization state as a result of exposure to energy.