baber/WOPTO huggingface dataset:
Patent CA-2109240-C (CA)
Inventor: UEDA MINORU
IPC: B25B11/00
Filed: 1993-10-26
Granted: 1997-11-18
Abstract: A wafer holding apparatus for holding a wafer stationary includes a main body and a plate member detachably placed on the main body. The main body includes a cavity having an open end at the upper surface of the main body and includes a passageway extending from the cavity to communicate the cavity with a vacuum pump. The plate member is placed on the main body to plug the open end of the cavity and supports on its upper surface a wafer to be processed. The plate member has a number of through bores arranged in a predetermined arrangement matched for the arrangement of micromachined sections of the wafer where micromachines or integrated circuits are to be formed. Before processing of the wafer, the plate member is selected for the wafer in such a manner that the through bores of the plate member are deviated from the micromachined sections of the wafer where the micromachines are to be formed. This results in the micromachined sections being protected from the suction force caused by the vacuum pump, thereby making it possible to enhance the productivity of the wafer.
Patent CA-2120183-C (CA)
Title: Antenna lattice for electronic article surveillance system
Inventor: NELSON JOHN E
IPC: G01V3/10
Filed: 1994-03-29
Granted: 2002-02-26
Abstract: An antenna lattice for use in a magnetically based electronic article surveillance system. The lattice includes a field-producing coil assembly which includes a pair of trapezoidal-shaped segments, each having a diagonally extending lower portion, the segments being juxtaposed in a minor image so that the diagonal portions are opposite each other. The segments are connected so that vertical components of the currents in the diagonal sections at least partially cancel. Preferably, top horizontal sections of each segment are located at different levels, thereby extending the upper coverage, and a detector coil preferably also juxtaposed extends above the top horizontal section of the field-producing coil to further extend the range of detection.
Patent CA-2120333-C (CA)
Inventor: KRAUSE JAMES MICHAEL
IPC: G06F11/00
Filed: 1992-11-24
Granted: 2003-10-14
Abstract: A multiple-fail-operational fault-toler-ant clock (10) having a plurality of intercon-nected and identical clock modules (11, 12, 13, 14), that provides a fault tolerant clock signal despite some clock module failures, The clock (10) incorporates fault-tolerant operational di-agnostics so that a working clock module may be voted for supplying the output clock signal.
Patent CA-2121115-C (CA)
Title: Dual-feed single-cam compound bow
Inventor: MCPHERSON MATHEW A
IPC: F41B5/10
Filed: 1994-04-12
Granted: 1999-09-21
Abstract: A cam is eccentrically journaled at one end of a compound archery bow and a pulley is journaled at the other end of the bow. A cable passes around the pulley to form a bowstring section and a second cable section, both sections forming a dual feed single cam compound bow. The amount of feed out to both ends of the bowstring is approximately the same. One embodiment of the cam provides a large radius cam groove and a smaller radius cam groove which are designed to synchronize the rate of cable feed out at both ends of the bowstring section during the drawing operation. An anchor cable is provided to tie the two limbs of the bow together during the flexing of the bow.
Patent CA-2121819-C (CA)
Title: Device fabrication entailing plasma-derived x-ray delineation
Inventor: WHITE DONALD LAWRENCE
IPC: G03F7/20
Filed: 1994-04-21
Granted: 1998-09-15
Abstract: Submicron device fabrication entailing ringfield x-ray pattern delineation is facilitated by use of a condenser including a faceted collector lens. The collector lens is constituted of paired facets, symmetrically placed about an axis of a laser-pumped plasma source. Each of the members of a pair produce an image of the entire illumination field so that inhomogeneities in illumination intensity are compensated within each composite image as produced by a particular pair.
Patent CA-2122747-C (CA)
Title: Method for securing a tester device to a battery and the battery so produced
Inventor: WEISS VICTOR H
IPC: H01M50/124
Filed: 1994-05-03
Granted: 2000-11-14
Abstract: Disclosed is a method for preparing and attaching a battery test label to a battery. More particularly the battery is at least partially encased with a non-conductive film having a top surface and bottom surface and a conductive circuit layer is disposed on at least a portion of the bottom surface and extends such that a first area is disposed over a first battery terminal and a second area is disposed over a second battery terminal. A non-conductive material is disposed over a portion of the conductive circuit layer so that at least a portion of the first and second areas disposed over the first terminal and second terminal, respectively, are not covered by the non-conductive material so that the first area can be deflected to contact the first terminal and the second area can be deflected to contact the second terminal of the battery with the remainder of the conductive circuit layer being electrically and thermally insulated from the terminals of the battery by the non-conductive material. A thermally sensitive material is disposed in responsive contact with the conductive circuit layer such that when the first area and second area of the conductive circuit layer contact the first terminal and second terminal, respectively, a current will flow through the conductive circuit layer and heat the thermally sensitive material which will indicate whether the battery has any capacity.
Patent CA-2129193-C (CA)
Inventor: REISSNER PETER E
IPC: H04L12/28
Filed: 1994-07-29
Granted: 1999-07-20
Abstract: An internetworking node for providing internetworking services for mobile wireless nodes is disclosed. Each mobile wireless node is associated with at the most one internetworking node.  Each mobile wireless node selects which internetworking node it will associate with. The internetworking node will then act for all wireless nodes associated to it  in relaying messages between wireless nodes or between a wired lan and the wireless nodes. A tracking mechanism for such a system which maintains a table of all the internetworking nodes the wireless node has recently heard and deleting all such internetworking nodes which have not been heard recently is disclosed.
Patent CA-2131383-C (CA)
Title: Wound healing and treatment of fibrotic disorders
Inventor: FERGUSON MARK W J
IPC: A61K9/20
Filed: 1993-03-22
Granted: 2002-07-16
Abstract: A healing composition containing at least one non-fibrotic growth factor in combination with a pharmaceutically accept-able carrier is disclosed. A method of preparation of the composition and method of treating a host, suffering from a wound or fibrotic condition, disease, disorder with the composition is also disclosed.
Patent CA-2141718-C (CA)
Inventor: SERAFINI TITO T
IPC: C07D209/48
Filed: 1995-02-02
Granted: 1998-11-10
Abstract: A method for forming a homogeneous, concentrated, prepolymer composition, and a method of using the concentrated prepolymer composition to uniformly coat fibers is described. The prepolymer mixture is formed by dissolving a dialkyl, trialkyl, or tetraalkylester of biphenyltetracarboxylic acid in a solvent comprising ethyl acetate and methanol in a molar ratio of from about 1:3 to about 1:60, to form an ester solution. Diamine and end cap compound are added to the ester solution to form a monomer mixture solution. The end cap compound is a divalent compound characterized by (i) at least one unsaturated moiety, (ii) capable of reacting with the diamine or the ester to form an end cap radical that precludes further reaction of the diamine with the ester, and (iii) capable of undergoing addition polymerization. A portion of the solvent is evaporated from the monomer solution to form the substantially homogeneous, concentrated, prepolymer composition. The concentrated prepolymer composition is used to uniformly coat fibers by heating the composition to an elevated temperature to form a prepolymer melt and applying the prepolymer melt to fibers. An article of manufacture comprising fibers and polyimide can be formed by heating the prepolymer coated fibers to the cross-linking temperature of the prepolymers.
Patent CA-2153637-C (CA)
Title: Pattern recognition using artificial neural network for coin validation
Inventor: WANG CHUANMING
IPC: G07D5/08
Filed: 1995-07-11
Granted: 1999-11-30
Abstract: A coin validation system for determining if a coin moving along a coin rail (21) is a valid coin, and if so, its denomination the system including a rail (21) along which coins move, at least one optical sensor (40, 42) located along the rail (21) to sense the presence or absence of a coin moving therealong, at least one magneticsensor (40, 42) associated with each optical sensor located in the vicinity of the respective optical sensor (40, 42), each of the magnetic sensors (46, 48) including an inductive element (L1) and a circuit for exciting the magnetic sensor (46, 48) to produce a field that is coupled to the coin moving past so that the coin and theinductive element (L1) have mutual inductance therebetween, the circuit ringing the magnetic sensor (46, 48) a predetermined number of times while the coin is adjacent to the magnetic sensor whereby the magnetic sensor (46, 48) generates a damped wave signal having characteristics representative of the physical and magnetic characteristics of the coin, a signal preprocessor (22) operatively connected to the magnetic sensor (46, 48) for producing output responses representative of distinguishing characteristics of the coin, a feature extraction circuit (24) for extracting from the output responses of the signal preprocessor signal portions representative of predetermined distinguishing characteristics of the coin, a circuit for producing a multi-dimensional representation of the extracted features and for comparing the multi-dimensional representation with the center of an establishedellipsoidal cluster of selected coin denominations to determine the extent of the comparison therebetween and to be used to determine whether the coin is an acceptable coin or not, and an artificial neural network classifier circuit (30) having connections to the preprocessor (22) and to the comparator circuit (32), the neural network classifier circuit (26) having an output which identifies the denomination of coins that are determined by the comparator circuit to be acceptable.
Patent CA-2155020-C (CA)
Inventor: BOYD MICHAEL R
IPC: C07C46/10
Filed: 1994-01-31
Granted: 2004-07-13
Abstract: The present invention provides novel antiviral naphthoquinone compounds, which may be isolated from plants of the genus Conospermum or synthesized chemically, in accordance with the present inventive methods. The antiviral naphthoquinone compounds, derivatives thereof, and prodrugs thereof, may be used alone or in combination with other antiviral agents in compositions, such as pharmaceutical compositions, to inhibit the growth or replication of a virus, such as a retrovirus, in particular a human immunodeficiency virus, specifically HIV-1 or HIV-2, in the treatment or prevention of viral infection.
Patent CA-2157810-C (CA)
Title: Printing form and process for assisting in the formation of images on the printing form
Inventor: WEISS ROBERT
IPC: G03G15/056
Filed: 1995-09-08
Granted: 2000-09-05
Abstract: A  printing  form  and  process  relating  to  the formation of images on the printing form. The printing form   includes   a   ferroelectric   layer   on   which photoferroelectric  effect  is  used  to  polarize  or depolarize the layer to form the image to be printed in the layer.   The printing form may also include a layer  which  is  neither  ferroelectric  nor  has  the function  of  a  photoconductor  which  adjoins  the ferroelectric   layer.      In   this   instance,   the photoelectric effect is used to form the image to be printed on the ferroelectric layer.
Patent CA-2162744-C (CA)
Title: Methods for producing coating powders, catalysts and drier water-borne coatings by spraying compositions with compressed fluids
Inventor: NIELSEN KENNETH ANDREW
IPC: B05D1/02
Filed: 1995-11-14
Granted: 2000-01-04
Abstract: This invention relates to methods for spraying liquid compositions containing volatile solvent by using compressed fluids, such as carbon dioxide or ethane, to form solid particulates, coating powders, and catalyst materials, which can be produced with narrow particle size distributions and can be sprayed at higher solids levels, in ambient air or with heated air applied to just the spray instead of a spray chamber. Novel catalyst supports can be produced having a beneficial morphology such as for olefin catalysis. Drier water-borne coatings can be applied to substrates by using compressed fluids to spray water-borne coating compositions having conventional water levels, thereby reducing runs and sags and shortening dry times.
Patent CA-2164410-C (CA)
Title: Emulsions as contrast agents and method of use
Inventor: KRISHNAN ASHWIN M
IPC: A61K49/22
Filed: 1994-05-26
Granted: 2000-02-22
Abstract: This invention relates to an oil-in-water emulsion that is of a water-isoluble gas-forming chemical and a stabilizer, the emulsion being capable of forming microbubbles of gas upon application of ultrasonic energy. This composition allows for site-specific imaging as the image-enhancing bubbles can be released upon the application of ultrasonic energy at the specific location where the image is desired.
Patent CA-2167996-C (CA)
Inventor: SUTHERLAND BRIAN A F S
IPC: H04M19/02
Filed: 1996-01-24
Granted: 1999-04-13
Abstract: A power converter forming part of a telephone subscriber line interface circuit selectively generates a ringing signal waveform, for supply to the line, or a supply voltage for a driver circuit for providing loop current on the line. First and second fixed frequency PWM signals are used to control the power converter, and hence the voltage which it generates, for the ringing signal waveform and the supply voltage respectively. The first PWM signal enables the power converter to provide a high power level needed for ringing signals. The second PWM signal has a lower frequency, and hence results in lower switching losses and power dissipation, and a lower duty cycle, suitable for the lower power level needed for the supply voltage, and is conveniently produced bymasking pulses of the first PWM signal. The frequency of the second PWM signal is greater than 270 kHz, to avoid transmitting spectral energy to the line below this frequency.
Patent CA-2168157-C (CA)
Title: Aqueous styrene/methacrylate polymeric dispersions
Inventor: KOELLIKER ROBERT
IPC: C08F2/24
Filed: 1996-01-26
Granted: 2001-02-27
Abstract: The invention relates to a chemical composition redispersible in aqueous media, containing a) a copolymer based on styrene and/or at least one alkyl (meth)acrylate, the quantity of styrene and/or alkyl (meth)acrylate being  50 % by weight, based on the total monomers, and at least one further comonomer, and b) a water-soluble polymeric protective colloid, wherein about 2 to 30 parts per weight of the water-soluble polymeric protective colloid are allotted to 100 parts by weight of the copolymer, and c) optional further additives as required. The copolymer contains appoximately 0.1 to 50 % by weight units of an epoxide-group-containing ethylenically unsaturated comonomer. Such units show reactive epoxide groups. Polymeric acrylic protective colloids which have monomer units with at least one aldehyde or ketone group are excluded. The invention relates further to an aqueous polymer dispersion of said chemical composition, the production of same and a special method for obtaining the chemical composition from the polymer dispersion and special applications of the aqueous polymer dispersion and the chemical composition.
Patent CA-2177108-C (CA)
Title: Low pressure mercury vapor filled discharge lamp
Inventor: MYOJO MINORU
IPC: H01J61/28
Filed: 1996-05-22
Granted: 2002-10-22
Abstract: In a fluorescent lamp with amalgam, a surface of the amalgam is covered by a barrier having at least one opening through which mercury atoms can move to a discharge space of the lamp from the amalgam while the lamp is being lighted. When the lamp is switched off, the barrier restricts the return of the mercury atoms from the discharge space to the amalgam. The amalgam solidifies faster than all the mercury atoms return to the amalgam, so that a lot of mercury atoms remain in the discharge space. When the lamp is re-lighted, an initial mercury vapor pressure can be maintained. Thus, the lamp illuminates at a predetermined intensity of the luminance from the beginning of the re-lighting.
Patent CA-2180175-C (CA)
Inventor: LAGUNA VALDERRAMA JOSE MA
IPC: B65D81/32
Filed: 1996-06-27
Granted: 2000-11-07
Abstract: Le flacon pour deux produits est du type constitué par un gobelet (3) situé à l'intérieur du goulot d'un flacon général (1). Ce flacon (1) présente sur son goulot (5) un filetage ainsi qu'une collerette (6) sur sa périphérie supérieure qui s'adapte à des éléments complémentaires situés à l'intérieur d'un bouchon (13) qui se visse à l'extérieur dudit goulot (5). Ce bouchon présente sur sa partie interne une saille verticale (16) sous forme de surface cylindrique peu élevée avec une extrémité aiguisée, alors que sur sa partie supérieure il est parfaitement fermé é l'aide d'un couvercle (17) qui fait charnière (19) avec le corps général du bouchon (13).
Patent CA-2189120-C (CA)
Inventor: DANZY ROGER DALE
IPC: F16K17/08
Filed: 1995-05-08
Granted: 1999-10-12
Abstract: An excess pressure safety relief valve includes a valve disc (30) movably mounted for movement between a closed and an open position, a valve disc holder (31) connected with the valve disc (30) having a deflecting rim (30B) circumscribing the valve disc providing with an internal outwardly divergent annular deflecting surface, a blowdown ring (21c) mounted on the nozzle (14) having an inner ring portion (21B) provided with an outer frustoconical deflecting surface (21D) substantially parallel with and spaced from the valve disc holder deflecting surface (31B). The blowdown ring includes an outer cylindrical rim (21A) provided with circumferentially spaced semi-elliptical discharge ports (21E) and an internal cylindrical surface (21F) substantially parallel with and spaced from the outer cylindrical surface (31C) of the valve disc holder (31), and a spring (44) connected with the valve disc holder (31A) for biasing the valve closed. The blowdown ring is adjustable for changing the blowdown of the valve.
Patent CA-2189802-C (CA)
Inventor: NOSKER RICHARD WILLIAM
IPC: H01J31/20
Filed: 1996-11-07
Granted: 2002-07-16
Abstract: The present invention provides an improvement in a color picture tube having a tensioned mask and support frame assembly. Each of the mask and the support frame is rectangular and has two long sides that parallel a central major axis thereof and two short sides that parallel a central minor axis thereof. The mask has a substantially cylindrical contour, being curved along the major axis and straight along the minor axis. The improvement comprises the frame including two first members that parallel the major axis and two second members, attached to the ends of the first members, that parallel the minor axis. Each of the first members includes a rigid section and a compliant section cantilevered from the rigid section. The mask is attached to the distal ends of the cantilevered compliant sections.
Patent CA-2194378-C (CA)
Title: Method and apparatus for storing and dispensing chemical solutions
Inventor: THOMAS JOHN E
IPC: G01N1/00
Filed: 1995-05-12
Granted: 2004-08-10
Abstract: A solution storage and dispensing apparatus and method of operation therefor are disclosed. The solution storage and dispensing apparatus includes a selector valve (68) and a control valve (62) which selectively output a liquid such as water to one of a plurality of storage containers (11a, 116, 11c, 11d). Each container (11) has an aspirator (26) mounted therein which receives the water and a chemical concentrate to form a solution therein. A container is filled by selecting the container using the selector valve and actuating the control valve to dispense water to the selected container.
Patent CA-2199112-C (CA)
Title: Lead frame flash removing method and apparatus
Inventor: UCHIDA KENJI
IPC: H01L21/48
Filed: 1997-03-04
Granted: 2001-05-01
Abstract: In a lead frame flash removing method and apparatus, a lead frame is molded integrally with a case.  After molding, abrasive agent-mixed water is sprayed to a surface of the lead frame where a flash is formed.  The lead frame is dipped in an electrolytic solution and applying a DC voltage is applied across the lead frame and an electrode in the electrolytic solution, thereby electrolytically processing the lead frame.  After the electrolytic process, an external force is applied to the surface of the lead frame, thereby removing the flash.
Patent CA-2206456-C (CA)
Title: Multimedia optical disc which conforms to the motion picture rating systems in a variety of countries and a reproducing device for said disc
Inventor: KOZUKA MASAYUKI
IPC: G11B7/24
Filed: 1996-10-07
Granted: 1999-09-28
Abstract: A multimedia optical disc containing a video data storage region; a control information storage region for control information comprising group information showing alternatively reproducible video data in each group, label IDs attached to the individual video data in the same group, and linkage information indicating video data to be reproduced subsequently to each video data; and a label map recording region on which tables for different countries or districts which have information for mapping classification labels and the label IDs in classification systems determined in different countries or districts are recorded. According to this structure, the video data are grouped and distinguished from one another by the label IDs, and any classification label of any classification system can be correlated definitely with the label ID.
Patent CA-2207183-C (CA)
Inventor: ROBERTSON ROGER KEVIN
IPC: F21V11/06
Filed: 1997-05-27
Granted: 2004-08-17
Abstract: An electric lighting fixture for mounting relative to a ceiling is disclosed.  An enhanced light deflecting louver system is also disclosed in which the louvers provide enhanced light deflection.
Patent CA-2209384-C (CA)
Title: Procede de codage de parole a analyse par synthese
Inventor: MAUC MICHEL
IPC: G10L19/09
Filed: 1996-01-03
Granted: 2001-05-29
Abstract: Le procédé comprend les étapes suivantes: analyse par prédiction linéaire du signal de parole (S) numérisé en trames successives divisées en sous-trames, pour déterminer des paramètres d'un filtre de synthèse à court terme; analyse en boucle ouverte pour détecter les trames voisées du signal et pour déterminer, pour chaque trame voisée, un degré de voisement du signal (MV) et un intervalle de recherche d'un retard de prédiction à long terme contenant un nombre de retards dépendant du degré de voisement; analyse prédictive en boucle fermée du signal de parole pour sélectionner, pour certaines au moins des sous-trames des trames voisées, un retard de prédiction à long terme contenu dans l'intervalle de recherche et constituant un paramètre d'un filtre de synthèse à long terme; et détermination d'une excitation stochastique pour chaque sous-trame, de façon à minimiser un écart pondéré perceptuellement entre le signal de parole et l'excitation stochastique filtrée par les filtres de synthèse à long terme et à court terme.
Patent CA-2209887-C (CA)
Title: Method and apparatus for traffic control in a cell-based network
Inventor: BRADSHAW JOHN RICHARD
IPC: H04L12/70
Filed: 1997-07-09
Granted: 2001-09-04
Abstract: A method and apparatus for traffic control in an ATM-based network is provided to avoid congestion of traffic flows and false identifications of conforming and non-conforming cells.