baber/WOPTO huggingface dataset:
Patent CA-2104660-C (CA)
Title: Cart
Inventor: RADCLIFFE FREDRICK W
IPC: G06Q10/08
Filed: 1993-08-23
Granted: 1999-03-16
Abstract: A mobile cart for carrying units and communicating with a computer by radio frequency, the cart including a frame, shelves mounted on the frame and adapted to carry units, a terminal associated with the frame which communicates with the computer for receiving data regarding the location and placement of the units on the shelves, displays associated with the shelves and communicating with the terminal, and a scanner communicating with the terminal for scanning  location identiers and/or units.
Patent CA-2106143-C (CA)
Title: Universal broadcast code and multi-level encoded signal monitoring system
Inventor: THOMAS WILLIAM L
IPC: H04N7/08
Filed: 1993-09-14
Granted: 2004-02-24
Abstract: A multi-level encoded signal monitoring system and a universal broadcast code are provided. A plural-ity of encoders are provided for encoding a predeter-mined program source signal. The program source signal has a plurality of sequential segments. Each encoder is arranged for selectively encoding information on uniquely specified segments. A plurality of unique source information message data are selectively encoded on the uniquely specified segments to define the universal broadcast code with each unique encoded source information message data being representative of a level of distribution of the program signal. The predetermined program source signal is received and the encoded information on selected specified segments is decoded.
Patent CA-2107824-C (CA)
Title: Softening non-swelling polyurethane
Inventor: ONWUNAKA THEOPHILUS O
IPC: C08G18/66
Filed: 1993-10-06
Granted: 1996-11-12
Abstract: A non-yellowing, elastomeric polyurethane is made from  a  non-aromatic   diisocyanate,   a  diol   chain extender,   a   polyglycol   and   an  aminodiol   chain extender.   The polyurethane  is  stable to  sterilizing radiation, is made without any processing aids or toxic catalysts, and softens without swelling up to 95% when contacted with an aqueous liquid.
Patent CA-2110847-C (CA)
Title: Multifocal ophthalmic lens pair
Inventor: ROFFMAN JEFFREY H
IPC: G02C7/04
Filed: 1993-12-07
Granted: 2006-03-21
Abstract: A pair of ophthalmic lenses both containing at least two optical powers, one for near vision and one for distance vision are described, both containing in the center portion of the lens the distance optical power. In the preferred embodiment, the remainder of the lens is comprised of annular portions made up of one or more optical zones to provide the desired combined, cumulative ratio of near and distance focal length areas at each pupil diameter. The distance portion located in the center is appropriately suited to the real world situation of requiring distance vision under high illumination situations.
Patent CA-2113222-C (CA)
Inventor: LINDEN ERKKI OLAVI
IPC: B23P15/40
Filed: 1994-01-11
Granted: 1998-07-07
Abstract: The present invention relates to pivoted tools such as scissors, pliers, pruners, and the like.  More particularly, this invention is concerned with tools having a force applying end with formed handles, and opposed working ends disposed across a pivotable joint.  In these tools the pivotable joint, which is formed concurrently with the handles, is an integral part of one of the handles. This invention is also concerned with the method of producing these tools.
Patent CA-2113958-C (CA)
Title: Semiconductor device and method for manufacturing the same
Inventor: KWON KEE-WON
IPC: H01L21/8246
Filed: 1994-01-21
Granted: 2005-06-14
Abstract: In a semiconductor device having a ferroelectric capacitor and manufacturing method thereof, a spacer comprising a low dielectric material is formed on the side surfaces of a plurality of lower electrodes separated into each cell unit, and a ferroelectric film is formed on the lower electrodes whereon the low dielectric material spacer is formed, and an upper electrode is formed on the ferroelectric film, to thereby prevent an error which may be caused between the adjacent lower electrodes.
Patent CA-2131972-C (CA)
Title: Grooved catheter director apparatus
Inventor: BERGER J LEE
IPC: A61F2/958
Filed: 1994-09-13
Granted: 2007-12-11
Abstract: The present invention is directed to a protective carpal tunnel grooved director catheter device which is housed in a protective case. The grooved guide director device is constructed with a tubular member with a blunt distal end and a handle secured to the tubular member. The tubular member defines a lumen which terminates at the distal end of the tubular member in a blind bore and the handle defines a thoroughgoing lumen axially aligned with the tubular member lumen. A cut out section is provided in the tubular member opening the tubular member lumen to the atmosphere to form a groove for a balloon catheter which is mounted in the lumen.
Patent CA-2134311-C (CA)
Title: Cartridge for in-line microwave warming apparatus
Inventor: CARR KENNETH L
IPC: H05B6/80
Filed: 1994-10-25
Granted: 2004-09-07
Abstract: A fluid flow cartridge for seating in an opening into a microwave heating cavity comprises a tubing support having an electrically conductive surface dimensioned to substantially close that opening and an elongated bobbin portion projecting from that surface. The cartridge also includes a selected length of tubing wound around the bobbin portion to form a coil, opposite end segments of the tubing extending from the coil through the conductive support surface and away from said support.  Preferably, the coil has straight tubing segments on opposite sides of the coil spaced apart one quarter wavelength or integral multiple thereof at the operating frequency of the heating cavity.
Patent CA-2139220-C (CA)
Inventor: CONOCHIE DAVID STEWART
IPC: F23G7/00
Filed: 1993-06-29
Granted: 2005-10-04
Abstract: A method of treating inorganic solid waste in a bath of molten metal contained in a vessel (3) which has a space above the bath and a waste gas outlet (11) is disclosed. The method comprises injecting waste into the bath to form a primary reaction zone (13) in which there are reactions between the waste and the bath or in which the waste undergoes a change of phase to convert the waste into more readily recoverable or disposable products. The method further comprises injecting oxygen-containing gas towards the surface of the bath to form a secondary reaction zone (17) in a section of the space above the bath through which oxidisable products released from the primary reaction zone (13) flow to reach the waste gas outlet (11) in the vessel (3) and in which the oxidisable products are oxidised and the heat released by such oxidation is transferred into the bath.
Patent CA-2140504-C (CA)
Inventor: FIORINO MARY E
IPC: C01G21/22
Filed: 1995-01-18
Granted: 1998-08-25
Abstract: The present invention provides improved processes for forming anti-corrosion layers, particularly barium metaplumbate, on lead, lead alloy-, and lead oxide-containing substrates. The processes of the invention are used to form corrosion-resistant current collectors which are assembled into lead-acid batteries. The inventive methods used to form barium metaplumbate employ a salt solution which includes a barium compound and a solvent salt. In a first embodiment, a substrate material having at least a surface comprising elemental lead reacts with a salt solution to form barium metaplumbate. The salt solution includes a barium compound and an oxidizing agent. The solvent salt or barium compound may themselves be oxidizing agents, or an additional oxidant may be added to the solution. The molten salt solution is applied to the substrate in any known manner such as dipping, spraying, and brushing. Advantageously, a lead or lead alloy-containing substrate is dipped into a molten salt solution heated to a temperature at which a portion of the lead-containing substrate is directly converted to bariummetaplumbate. In a further embodiment of the invention, barium metaplumbate is formed on a lead oxide-containing substrate. This process employs a salt solution comprising a barium compound and a solvent salt to convert lead oxide to barium metaplumbate.
Patent CA-2141698-C (CA)
Inventor: BERDAN KARL
IPC: B29C45/00
Filed: 1995-02-02
Granted: 2005-10-18
Abstract: A gas assisted injection molding machine includes an injector valve assembly secured to the clamping plate and having an elongate supply duct extending through the core and into the mold cavity. The duct supports a valve member for sliding movement and is itself supported in the core by an ejector sleeve. The ejector sleeve moves with the ejection mechanism to force molded articles off the end of the supply duct.
Patent CA-2142273-C (CA)
Title: Device for roping down and hoisting people and/or loads from or to great heights
Inventor: BLODER HANS
IPC: B66D5/02
Filed: 1993-08-09
Granted: 2002-12-10
Abstract: The invention relates to a device for lowering or raising people and/or loads over great heights, in which a rope pulley is rotatably fitted on a base plate via a brake disc. A brake pad is allocated to the brake disc on one side on the base plate and on the other on a pressure plate secured against rotation. Pressure can be applied to the pressure plate by a tension bolt passing through the brake disc bearing and the tension bolt is coupled to the suspension of the device via a power deflection device via which the weight of the person and/or load to be lowered or raised can be converted into a tensile force on the bolt. A concentrically arranged toothed wheel is connected to the brake disc which engages with a gear system also fitted in the base plate via which an additional centrifugal braking device can be actuated. Here, the suspension (16) of the device takes the form of a pull-rod (15), preferably guided to be movable on the base plate (1), the end (19) of which, which is in the device, can pivot on an arm of a bell-crank lever (17), the other arm of which is pivot-ably connected to the tension bolt (9) and which is fitted to pivot on the base plate (1) in the region of its angle (20).
Patent CA-2143623-C (CA)
Inventor: CLARK GRAEME M
IPC: A61F11/00
Filed: 1994-07-01
Granted: 2004-10-12
Abstract: A cochlear prosthesis comprising an electtvde array of individually addressable electrodes and a stimulator device to provide electrical stimuli to selected groupings of electrodes in response to sound signals. The stimuli and the electrode groupings being determined by reference to a predefined instruction set. The cochlear prosthesis is characterized in that in response to different sound signals at least two distinct current distribution geometries are induced in ttie auditory structures of a user. This may be achieved by using different electrode geometries, different stimulation modes, combinations of stimulation mobs and/or electrode geometiies.
Patent CA-2146626-C (CA)
Title: Preparation of 3-mercaptopropionitrile and 3-mercaptopropionic acid
Inventor: WOODBURY RICHARD P
IPC: C07C323/25
Filed: 1995-04-07
Granted: 2006-06-13
Abstract: Facile process for the production of 3-mercaptopropionitrile and 3-mercaptopropionic acid by reacting thiodipropionitrile with alkaline hydrosulfide in the presence of alkaline hydroxide.      Acidification of the resulting reaction product with a strong acid, or saponification, yields the desired mercaptopropionic acid, which can be isolated in high yield.
Patent CA-2148404-C (CA)
Inventor: SHAH SNEHAL M
IPC: A61K8/37
Filed: 1995-05-02
Granted: 2002-07-30
Abstract: The  present  invention  relates  a  hair  treatment preparation which, in conjunction with after-applied heat, such as normal blow-drying, adds strength to, and repairs damage to, bleached and permed hair and enhances moisture  retention.     The  treatment preparation  consists  of  an  aqueous blend  of  a hydrolyzed wheat protein and wheat oligosaccharides, wheat amino acids, and panthenol, as its essential active  ingredients,  with  or  without  selected additives such as panthenyl ethyl ether, fragrance, preservatives,  and the like.   The invention also discloses a method of strengthening and repairing damaged hair comprising applying the hair treatment hair  preparation  of  the present  invention  onto damaged hair, and thereafter drying the treated hair. Certain aspects of hair strength,  especially for previously permed hair, appear to be increased when the thus treated hair is blow-dried.
Patent CA-2150833-C (CA)
Title: Nanostructured electrode membranes
Inventor: PARSONAGE EDWARD E
IPC: H01M8/10
Filed: 1993-12-07
Granted: 2004-02-17
Abstract: A nanostructured composite film comprising a plurality of nanostructured elements, wherein the nanostructured elements are either two-component sub-microscopic structures comprised of whiskers conformally coated with a conducting, preferentially caralytically active material or one component sub-microscopic structures comprised of a conducting, preferentially catalytically active material, such that the nanostructured elements are embedded in an encapsulant, wherein the encapsulant can be a solid electrolyte. The composite film can be used as an electrode membrane, in an electrochemical cell or an analyze sensor.
Patent CA-2151231-C (CA)
Title: Human cyclooxygenase-2cdna and assays for evaluating cyclooxygenase-2 activity
Inventor: CROMLISH WANDA A
IPC: C12Q1/48
Filed: 1993-12-17
Granted: 2004-11-09
Abstract: The invention discloses an assay for measuring inhibition of cyclooxygenase-2 in comparison with cyclooxygenase-1. The invention also comprises a human cyclooxygenase-2 cDNA and a human cyclooxygenase-2.
Patent CA-2151259-C (CA)
Inventor: MCNEELY GWYN F
IPC: A61M25/02
Filed: 1994-01-04
Granted: 2008-04-01
Abstract: This invention is a system and method for inserting a gastrostomy catheter (10) through a passageway formed through the abdominal and stomach walls (11, 12) of a patient. The gastrostomy catheter (10) is mounted onto a dilatation catheter (13) with a dilatation member such as an inelastic balloon (14) on the distal extremity thereof. An introducer needle is first advanced through the walls of the patient's abdomen and stomach (11, 12) into the interior of the stomach and then a guide wire is advanced through the inner lumen of the needle into the stomach interior. The gastrostomy catheter/dilatation catheter assembly (10, 13) is advanced over the guide wire until the balloon (14) on the dilatation catheter (13) is in proper position crossing both the abdominal and gastric walls (11, 12). Upon inflation of the balloon (14) on the dilatation catheter (13), the passageway is expanded enough so that the gastrostomy catheter (10) can be advanced therethrough to dispose the distal end of the gastrostomy catheter (10) within the interior of the stomach. The balloon (14) on the distal end of the gastrostomy catheter (10) is inflated so as to for an internal retention member.
Patent CA-2152967-C (CA)
Inventor: HOISINGTON PAUL A
IPC: B41J2/045
Filed: 1995-06-29
Granted: 1999-11-02
Abstract: In the high-frequency drop-on-demand ink jet system described in the specification, a variable impedance cha-racteristic of an ink jet orifice is utilized to provide maximum drop ejection rates exceeding the maximum rates possible with constant orifice impedance characteristics. In one embodiment, successive negative, positive and neg-ative pulses are applied to eject each drop in order to utilize a-nonlinear orifice impedance characteristic, permitting maximum ink drop ejection rates exceeding 10-20 kHz and up to 150-200 kHz, and, in another embodiment, the ink jet orifice is designed with a bellmouth shape arranged to enhance the variable imped-ance characteristic.
Patent CA-2160060-C (CA)
Title: Sealing assembly for molds used for casting sanitary fixtures
Inventor: PETRUCCO TOFFOLO RENATO
IPC: B28B7/00
Filed: 1995-10-06
Granted: 1999-06-29
Abstract: A sealing assembly for molds used for casting sanitary fixtures comprising at least one female die which is capable of defining the molding cavity of the item as well as at least one male die which is designed to be introduced into and withdrawn from said molding cavity, and which is provided with a mating surface capable of interacting with an associated mating surface of at least one female die. The sealing assembly comprises a tubular elastic body of annular shape which is placed within a peripheral groove recessed in the mating surface of at least one male die, and which is connected to an assembly capable of alternately deflating and inflating said elastic tubular body so that the latter assumes a first transverse shape which is completely accommodated within the corresponding transverse-shape of the groove, and a second transverse shape which projects beyond the mouth of the groove, where it comes to rest against the facing associated mating surface of at least one female die.
Patent CA-2164066-C (CA)
Inventor: CLARK BRIAN
IPC: G01V3/30
Filed: 1995-11-29
Granted: 1999-11-16
Abstract: A well logging apparatus and technique for measuring formation resistivity is disclosed which provides advantages of borehole compensation without the requirement of having, for each transmitter to receiver pair spacing, an "equal and opposite" transmitter with the same spacing on the other side of the receiver pair. In one disclosed embodiment there are provided two transmitting antenna at equal and opposite spacing from the midpoint of the receiving antenna pair, and a third transmitting antenna at a different spacing from the midpoint of the receiving antenna pair, without the need for providing a fourth transmitting antenna to obtain the benefits of borehole compensation. This reduces the complexity and cost of adding additional depths of investigation to a logging tool, while retaining the advantages of borehole compensation. In another disclosed embodiment at least three transmitting antennas are provided with at least one of them on one side of the receiving antenna pair and at least two of them on the other side of the receiving antenna pair. In this embodiment, none of the spacings between respective transmitting antenna and the midpoint of the receiving antenna pair are the same.
Patent CA-2166077-C (CA)
Inventor: FALGEN HELENA
IPC: C01B11/02
Filed: 1994-06-30
Granted: 2000-06-27
Abstract: The invention relates to a method of producing an acidified aqueous solution containing alkali metal sulfate and chlorate comprising the steps of introducing and aqueous solution containing alkali metal sulfate and chlorate into an electrochemical cell and electrochemically increasing the acidity of said aqueous solution, wherein the current efficiency of the cell is maintained below 70%. The invention also relates to a method of producing chlorine dioxide comprising the steps: providing a reactor with an aqueous acidic reaction medium containing alkali metal chlorate and sulfate; reducing chlorate ions in said reaction medium to form chlorine dioxide; withdrawing chlorine dioxide gas from the reaction medium; withdrawing reaction medium from the reactor and transferring it to an electrochemical cell substantially without crystallization of sulfate or chlorate; electrochemically acidifying said reaction medium to increase the acidity and to decrease the content of alkali metal ions; recycling acidified reaction medium to the reactor; adding make up alkali metal chlorate to the reaction medium before or after the electrochemical cell; wherein the current efficiency of the electrochemical cell is maintained below about 80 %.
Patent CA-2172009-C (CA)
Inventor: KORI TERUHIKO
IPC: H04N7/088
Filed: 1996-03-18
Granted: 2005-05-31
Abstract: Digital video tape recorder which reproduces from a record medium a digital high definition video signal having copy-prevention data therein, extracts the copy-prevention data from the reproduced signal, generates from the extracted digital copy-prevention data an analog copy-inhibit signal that has the same data format as a copy-inhibit signal superimposed on a standard definition video signal, converts the reproduced digital high definition video signal to an analog signal, and superimposes the analog copy-inhibit signal onto the analog signal for output. To record a high definition video signal, the digital video tape recorder receives an analog high definition video signal that has superimposed thereon a copy-inhibit signal having the same data format as a copy-inhibit signal superimposed on a standard definition video signal, extracts the copy-inhibit signal from the received analog high definition video signal, supplies the received analog high definition video signal when that signal is not copy-protected, converts the supplied video signal to a digital signal, generates digital copy-prevention data from the extracted copy-inhibit signal, adds the digital copy-prevention data to the digital signal, and records on a record medium the digital signal with the digital copy-prevention data added thereto.
Patent CA-2173191-C (CA)
Inventor: LANDFORS JOHAN
IPC: D21C/
Filed: 1996-04-01
Granted: 2001-06-05
Abstract: The invention relates to a method of producing pulp comprising a step of forming green liquor containing alkali metal sulfide and alkali metal carbonate. The method further comprises a step of electrochemically treating the green liquor to oxidize at least part of the sulfide therein.
Patent CA-2174295-C (CA)
Title: Voltage source type power converting apparatus
Inventor: AKAMATSU MASAHIKO
IPC: H02M7/19
Filed: 1996-04-16
Granted: 2001-12-11
Abstract: A voltage source type power converting apparatus having voltage source type power converter units and phase-shifting transformers.   The transformers have either a common multiple-phase primary winding or a group of parallel connected multiple-phase primary windings, either of which being connected in parallel or  series  to  a  multiple-phase  AC  system.    The transformer further include a group of multiple-phase secondary windings with phase differences with respect to each other and which are connected to voltage source type power converter units.  The voltage source type power converter units are operated with the phase differences.   Accordingly,  the construction of the multiplexing phase-shifting transformer is simple, and fundamental electric variables can be controlled by a simple phase controlling operation.   In addition, a higher  harmonic  defect  of  the  AC  system  can  be reduced, and the DC voltage can be easily raised.
Patent CA-2177554-C (CA)
Inventor: LOGAN MARGARET ELIZABETH
IPC: G01N33/68
Filed: 1996-05-28
Granted: 2008-12-16
Abstract: A dry immunoassay analytical element for assaying a ligand, comprising a support bearing: 1. an enzyme labeled ligand or an enzyme labeled receptor zone; 2. a spreading zone; and 3. a receptor zone containing a fixed concentration of an immobilized receptor for the ligand and the labeled ligand when present and the receptor is covalently bonded to polymeric beads having a diameter in the range of 0.1 to 5 µm; characterized in that the element contains a diaryl telluride (DAT) compound and the zones can be in the same or separate layers.
Patent CA-2177999-C (CA)
Title: Reducing crosstalk connector
Inventor: PINNEY DAVID RALPH
IPC: H01R13/6464
Filed: 1994-11-29
Granted: 2000-04-11
Abstract: An electrical connector has four contacts (2, 3, 4, 5) extending between input terminals (18) and output terminals (13). In order to reduce crosstalk between pairs of contacts there is provided an overlapping of the mutually most distant terminals (3 & 5, 4 & 6) of different particularly assigned signal carrying pairs (4 & 5, 3 & 6) of the contacts to provide capacitive coupling therebetween to induce crosstalk in opposition to crosstalk induced between the mutually closest terminals (3 & 4, 5 & 6).