baber/WOPTO huggingface dataset:
Patent CA-2138547-C (CA)
Title: Process for bleaching pulp in conjunction with adsorption of metals
Inventor: BERGQVIST ANDERS
IPC: D21C9/00
Filed: 1993-06-24
Granted: 2000-05-02
Abstract: The following invention relates to a process for bleaching pulp, in which, after defibration, a first filtrate (2) containing metals, principally in ionic form, is separated off from pulp, in which the separated metals are supplied to a certain fibre quantity (I), which adsorbs the metals, which fibre quantity, during its further treatment, is at least not significantly negatively affected by the presence of the metals.
Patent CA-2139422-C (CA)
Inventor: WEBLER WILLIAM E
IPC: A61B8/12
Filed: 1993-06-29
Granted: 2004-07-20
Abstract: A longitudinal position translator includes a probe drive module (20) and a linear translation module (48). The drive mo-dule (20) is coupled to an ultrasonic imaging probe assembly (12) having a distally located transducer subassembly (16) such that longitudinal shifting of the subassembly (16} may be effected. The module (20) is mounted to the translation unit (48) sa as to be moveable between a condition whereby longitudinal shifting of the subassembly (16) can be conducted either manually or auto-matically. When in the latter condition, the probe drive module (20) will engage a motor-driven screw associated with the linear translation module (48), causing the probe drive module (20) to be displaced at a constant rate. The distally located ultrasound transducer ( 16) is thus longitudinally shifted during an ultrasound scan to allow axially-spaced 360° data "slices" of surrounding tissue to be obtained, with reconstruction into a two or three-dimensional representation of the scanned tissue.
Patent CA-2143389-C (CA)
Title: Microcellular polyurethane elastomer and process for producing the same
Inventor: NAGASHIMA TOHORU
IPC: C08G18/12
Filed: 1995-02-24
Granted: 1999-05-18
Abstract: A microcellular polyurethane  elastomer  obtained  by mixing  an NCO-terminated  prepolymer,   an  OH-terminated prepolymer and a foaming component with stirring to cause foaming and curing is disclosed, in which the NCO-terminated prepolymer is (A) a prepolymer obtained by reacting a polyester polyol (a) having a number average molecular weight of 1,000 to 3,000 and diphenylmethane-4,4'-diisocyanate  (MDI)  or  (B)  a partially crosslinked prepolymer obtained by further reacting the reaction product of polyester polyol (a) and MDI with a low-molecular weight polyol, the OH-terminated prepolymer is (A) a prepolymer obtained by reacting polyester polyol (a) with a polyisocyanate or  (B) a prepolymer obtained by reacting polyester polyol (b) and/or a polyether polyol both having a number  average molecular weight  of  500  to  3,000  with  a polyisocyanate, and the foaming component contains water as a main  blowing  agent,  which  elastomer  exhibits  improved resistance to fatigue failure and permanent set in a fatigue test while retaining advantages of the use of MDI.
Patent CA-2146103-C (CA)
Inventor: KLEIMEYER DAVID L
IPC: C23C2/00
Filed: 1995-03-31
Granted: 2005-06-28
Abstract: The invention includes a vessel (24) for containing a bath (28) of molten coating metal such as zinc, a sink roll (30) submerged into the bath defining a path of travel for a metal strip (12) through the bath with the strip applying force to the roll as a result of tensile load on the strip and a pair of stabilizing rolls (32). Sink roll (30) is supported by a pair of spaced arms (36) and each stabilizing roll (32) is supported by a pair of spaced arms (44). Each roll has a cylindrical body (52) having an outer surface for being in contact with strip (12) and a trunnion (54) projecting axially from each end of the roll body. Each arm (36) has an upper end (38) and a lower end (40), the upper ends being mounted at positions (42) above the vessel and the lower ends for being submerged into the bath. Each lower end of the arms includes means (58) for supporting the roll and means (56) for restraining lateral thrust of the roll.  The support means includes an oversized opening (59), a ceramic wear resistant bearing (68) mounted within the opening and a cylindrical sleeve (66) mounted onto each of the trunnions. Each sleeve has an outer wear resistant surface (72). Each of the sleeve mounted trunnions is positioned within and supported by one of the openings. Restraining means (56) includes a stop surface (60) disposed adjacent to the outer end of the trunnion. The bearing surface is at least as wide ass the width of the sleeve and the distance between the stop surfaces is greater than the over all length of the roll. This insures that the full width of the outer surface of the sleeve is supported by the bearing during coating of the strip.
Patent CA-2148340-C (CA)
Inventor: DI PIETRO GIANNI
IPC: G10L25/60
Filed: 1995-05-01
Granted: 2004-12-07
Abstract: A method for automatically and reproducibly rating the transmission quality of a speech transmission system, comprising the steps of: generating a test signal containing a predetermined recorded voice signal; transmitting the test signal by the speech transmission system from a transmitting end to a receiving end; extracting characteristic values from the received test signal; determining a differential pattern corresponding to the difference between the characteristic values and predetermined reference values; and feeding the differential pattern to a neural network that has been trained for classifying patterns according to a number of predetermined transmission quality classes.
Patent CA-2149535-C (CA)
Title: Digester for continuous cooking of fibre material
Inventor: BACKLUND AKE
IPC: D21C3/24
Filed: 1993-03-16
Granted: 2004-07-06
Abstract: The present invention relates to a digester for continuous cooking under raised pressure and temperature of fibre material in a vertical digester (I), where input of fibre material and cooking liquid takes place at the top of the digester, withdrawal of spent cooking liquor is carried out from at least one digester screening arrangement (ID) between the top and the bottom of the digester, and fibre material is fed out from the bottom (1C) of the digester, wherein at least one of said screening arrangements (I, 2) has at least one screen element (2A) of which the main configuration is circular and which preferably is assembled by means of welding, and which is fitted into the digester shell by means of welding.
Patent CA-2149983-C (CA)
Inventor: BARR BRUCE THOMAS
IPC: G03B27/04
Filed: 1995-05-23
Granted: 1998-08-11
Abstract: A contact printer for printing negatives in rows and columns directly onto photographic paper comprises a flat smooth base plate having a pair of upstanding pins adjacent one side edge. The pins are mounted in slots so as to be adjustable longitudinally of the side edge both in spacing and in distance from the bottom edge. The negatives are placed in rows and columns within an archival preserver sleeve which has holes along one side edge engaged over the pins to locate the sleeve and therefore the negatives on the base plate. Photographic paper is inserted under the sleeve and is located on the base plate by engagement with the pins and by alignment of the bottom edge of the paper with the bottom edge of the base plate. This ensures that the negatives are properly aligned with the paper. A transparent cover plate is also provided to press the negatives onto the paper for exposure of the paper by light directed through the transparent cover plate. Each of the pins has a phosphorescent light source and a similar phosphorescent light source is provided adjacent opposed corners of the plate so that the four corners are visually located in the dark room.
Patent CA-2152634-C (CA)
Title: High temperature forgeable alloy
Inventor: KLOEWER JUTTA
IPC: C22C19/05
Filed: 1995-06-26
Granted: 2000-05-30
Abstract: The invention relates to a high temperature forgeable alloy consisting of < 0.05    C          < 0.5     Si < 0.5     Mn 8.5 to 11 Al < 0.02    P          < 0.01    S 4 to 10   Cr 23 to 28  Fe 0.025 to 0.2 Hf and/or rare earths and/or Zr < 0.5        Ti < 0.005      B     residue nickel and admixtures due to melting, and its use for the production of articles for energy technology and the chemical industry which are resistant to sulphidization, carbonization and oxidation at temperatures between 400 and 1100°C.
Patent CA-2152730-C (CA)
Title: Catalytic composition for the preparation of long-chain alkylaromatic compounds
Inventor: AMARILLI STEFANO
IPC: B01J29/04
Filed: 1995-06-27
Granted: 1999-11-23
Abstract: A description follows of a catalytic composition comprising a mixture of Y zeolite and pillared clay and a process which uses this catalytic composition for the alkylation of aromatic hydrocarbons by means of long-chain linear olefins. The aromatic alkyl compounds thus obtained are useful for the preparation of biodegradable synthetic detergents.
Patent CA-2159459-C (CA)
Title: Procede et systeme de gestion de memoire dans un reseau rapide
Inventor: JOHNSTON CESAR AUGUSTO
IPC: H04L12/56
Filed: 1994-11-29
Granted: 2000-04-18
Abstract: L'invention concerne un procédé et un système de gestion de mémoire permettant de rassembler des paquets de données provenant de différentes voies virtuelles dans un réseau ATM (mode de transfert asynchrone). Une interface réseau doit assurer un trafic fiable et le meilleur effort de transmission. Le système utilise un concept virtuel premier entré, premier sorti (FIFO) qui divise l'espace mémoire RAM en queues FIFO multiples. Les FIFO virtuels peuvent présenter différentes tailles et peuvent être attribués à des connexions en fonction de la qualité de service requise. Un contrôleur spécialisé intégré (721) est utilisé dans le système de manière à donner de la flexibilité, ainsi que des dispositifs à mémoire associative (723, 724) et une unité logique externe. Le procédé et le système selon l'invention peuvent également être appliqués au niveau d'émetteurs à mode de transmission asynchrone dans la mise en oeuvre d'algorithmes de régulation d'encombrement.
Patent CA-2162666-C (CA)
Title: Psyllium drink mix compositions
Inventor: DAGGY BRUCE PAUL
IPC: A23L29/238
Filed: 1994-04-28
Granted: 1999-11-02
Abstract: Psyllium husk-containing drink mix compositions comprising calcium citrate malate.
Patent CA-2164438-C (CA)
Title: Gas detection, identification and elemental and quantitative analysis system
Inventor: PACEY PHILIP D
IPC: G01N27/406
Filed: 1994-06-06
Granted: 2002-09-03
Abstract: A system, an apparatus and a method are provided for measuring the concentration of a sample gas in an oxygen-containing carrier gas, and for analyzing the chemical constitution of an oxygen-containing gas. The system includes two gas detectors, and a flame ionization detector. Each gas detector includes a central, solid electrolyte inner detector tube, the central, solid electrolyte inner detector tube comprising an oxide of a tetravalent metal which has been doped with an oxide of an element having a valence less than four. A first inlet tube into, and a first outlet tube from, the central, solid, electrolyte inner detector tube permits the oxygen-containing gas to flow through the detector tube while substantially eliminating back-diffusion of air into the detector tube. An internal electrode is in contact with the interior of the detector tube, and has a first, electrically-conductive output lead. An external electrode is in contact with the exterior of the detector tube, and has a second, electrically-conductive output lead. First and second interfaces between the electrode and the detector tube are maintained at a predetermined temperature. Means provide the first interface with continuously-flowing, oxygen-containing carrier gas which also contains the sample gas whose concentration is to be measured. An outer, concentric non-porous tube is spaced apart from the central, solid electrolyte inner detector tube, to provide an annulus therebetween. A second inlet tube into the annulus and a second outlet tube from the annulus allow the reference gas to flow through the annulus while substantially eliminating back-diffusion of air into the annulus. A second external solid electrolyte is maintained at the predetermined temperature as first interface. Means bathe the second interface with the reference gas. Means seal the various tubes to provide a sealed unit. Means are for measuring an electrical signal between said electrodes, the electrical signal being directly proportional to the concentration of said sample gas to be determined, thereby to determine the concentration of the sample gas directly as a linear correlation of said electrical signal. These means provide a direct measurement of the amount of CO2, H2O and C, and the measurements are converted to equations which are solved electrically to give the carbon, hydrogen and oxygen contents of the gas.
Patent CA-2166757-C (CA)
Title: Container support pedestal
Inventor: COSLOVI ILARIO A
IPC: B60P7/13
Filed: 1996-01-08
Granted: 2002-10-01
Abstract: This invention relates to a container support pedestal for use in an all purpose intermodal flat rail car.  More particularly, the invention relates to a container support pedestal which, between operative and stored positions, rotates approximately 45.degree. outwardly about a longitudinal axis of the rail car.  The invention also relates to a support housing for the pedestal.  In both the operative and stored positions, the pedestal substantially covers the slot in the platform of the rail car.  In both positions, the pedestal is secured against longitudinal and transverse rotation.  The invention also relates to a rail car with such a pedestal and housing.
Patent CA-2176706-C (CA)
Title: Carbonyl containing compounds
Inventor: BROIS STANLEY J
IPC: C07C235/28
Filed: 1993-12-03
Granted: 2006-01-24
Abstract: In accordance with the present invention, there is provided a novel composition of matter having formula (I) wherein Ra, Rb, Rc, Rd and Re are independently selected from the group consisting of H, alkyl groups and substituted alkyl groups having about 1 to 106 carbon atoms, alkenyl groups and substituted alkenyl groups having about 3 to 106 carbon atoms, wherein t he substituents on the alkyl and/or alkenyl groups are selected from the group consisting of alkoxy, halogen, CN, OH, HO(CH2CH2O)x (X=1-10), acyl, acyloxy and aryl substituents.
Patent CA-2180991-C (CA)
Inventor: COUSE PETER
IPC: H04M1/72502
Filed: 1996-07-11
Granted: 2001-08-21
Abstract: An intelligent cordless telephone interface device for connection to a telephone line is means responsive to an incoming call on the telephone line to determine the identity of the caller. The device communicates with a cordless telephone to convey the identity of the caller to the user and is responsive to input from the user via the cordless telephone to handle the incoming call in the desired manner, for example to direct it to an answering machine, send an announcement to the caller or the like.
Patent CA-2181111-C (CA)
Inventor: REMINGTON JAMES A
IPC: E01B9/60
Filed: 1996-07-12
Granted: 1999-04-27
Abstract: A railroad trackwork spring frog installation having a conventional wing rail with attached wing rail horn fitting is provided with an improved co-operating hold-down comprising a weld block element component, a separate, readily replaceable, riser component supported by the weld block component,  a housing component positioned over the wing rail horn fitting and supported by the weld block component,  and bolt-type fastener devices joining the hold-down components  into a unitary structure.
Patent CA-2181508-C (CA)
Title: Process for purifying acrylic acid prepared by propylene catalytic oxidation
Inventor: FAUCONET MICHEL
IPC: C07C57/07
Filed: 1996-07-18
Granted: 1999-07-13
Abstract: A process for the purificn. of acrylic acid obtd. by catalytic oxidn. of propylene extracted by counter-current washing of the reaction gases with a heavy hydrophobic solvent in an extn. column (C1) comprises directing the distn. flow (5) from the base of column (C1) to column (C3), and contg. the heavy extn. solvent(s), acrylic acid and impurities (mainly of b.pt. greater than that of acrylic acid), the distn. being effected in conditions such that a very pure flow of acrylic acid (6) is obtd. from the head of C3, whilst allowing some acrylic acid to pass from the base (7); feeding the effluent (7) to the lower part of a distn. column (C4) from which a lateral withdrawal at a plate between the supply and the column head is taken (9), which is rich in maleic anhydride and impurities of b.pt. between acrylic acid and the heavy solvent(s); distilling a flow (8) rich in acrylic acid from the head of (C4); and recovering a flux (1) from the base of (C4) contg. the heavy extn. solvent(s) and heavy impurities , and recycling to the head of (C1).
Patent CA-2184055-C (CA)
Inventor: TAKEDA MITUYUKI
IPC: G01N27/18
Filed: 1995-12-27
Granted: 2001-12-18
Abstract: In order to provide a humidity sensor of a heat conduction type which enables the humidity measurement by a single temperature sensing resistor so as to reduce the change in characteristic depending on the temperature change of the measurement atmosphere and to reduce the cost, a temperature sensing resistor 1 and three fixed resistors R1, R2, and R3 form a Wheatstone bridge circuit. The humidity is measured by utilizing the fact that the heat radiation of the temperature sensing resistor 1 changes depending on the humidity. The temperature sensing resistor 1 is heated by a heat generator 2 for self-radiation of Joule heat so that the temperature of the temperature sensing resistor 1 is controlled to a constant temperature of 300.degree.C or more.  The output voltage value of the Wheatstone bridge circuit is corrected with reference to the variation of the output voltage value depending on the ambient temperature of the temperature sensing resistor 1.
Patent CA-2186576-C (CA)
Title: Battery electrode substrate and process for producing the same
Inventor: HARADA KEIZO
IPC: H01M4/66
Filed: 1996-09-26
Granted: 2000-10-17
Abstract: A battery electrode substrate which is constituted of a porous metallic body structure having communicating pores at a porosity of at least 90% and an Fe/Ni multilayer structure wherein the skeletal portion of the porous metallic body is composed mainly of Fe and has an Ni covering layer on the surface thereof while pores communicating with the inside and outside of Fe skeletal portion exist in the Fe skeletal portion and the inside of the pores is covered with Ni.  The electrode substrate is produced by applying an iron oxide powder of at most 20 µm in an average particle size on a porous resin core body; heat treating the core to remove an organic resin component while simultaneously sintering Fe to obtain a porous Fe body; and then covering the Fe skeletal portion with Ni by electroplating.  In this process, the iron oxide can be used in combination with carbon powder.  Further, a nickel porous sintered body can also be produced using nickel oxide in place of iron oxide.
Patent CA-2193027-C (CA)
Inventor: LEE DAVID K
IPC: G07B17/00
Filed: 1996-12-16
Granted: 2002-12-10
Abstract: A method of creating an open system digital token includes sending predetermined information to a digital token generation process. A set of characters are randomly selected from the predetermined information. A mapping algorithm is applied to the selected characters to facilitate a character recognition process and a random number algorithm is applied to the mapped selected characters to obtain a random number. A digital token is calculated using the random number. The predetermined information may be delivery address information in the form of an ASCII string which is reduced by eliminating certain non-alphanumeric characters from the ASCII string. Certain characters can be modified to facilitate OCR processing. A plurality of characters are randomly selected from the reduced ASCII string to determine random positions in the reduced ASCII string. The ASCII code of the selected characters are mapped to the code of a reduced space using a mapping table. The mapped delivery address information is included in a digital token calculation of the digital token generation process.
Patent CA-2193560-C (CA)
Title: Processor apparatus and method for a process measurement signal
Inventor: WARTMANN GERD
IPC: G01F23/284
Filed: 1996-12-20
Granted: 2000-04-18
Abstract: A method and apparatus for processing a time domain reflectometry (TDR) signal to generate an output result corresponding to a valid process variable.  The method comprises processing the TDR signal using at least two different techniques for detecting a valid reflection pulse generated by the process variable to calculate an independent result using each of the two of the at least two techniques, applying a weighted factor to the independent results from each of the at least two different techniques to provide weighted output results, comparing the weighted output results and selecting the valid output result from the weighted output results based on the comparing step.  The apparatus comprises a primary detector for detecting the reflection pulse generated by the process variable and calculating a primary output, a secondary detector for detecting the reflection pulse generated by the process variable and calculating at least one secondary output result, a comparator for comparing the primary result with the at least one secondary result to check the primary result and to select the valid output result based on the comparison.  The present invention provides an apparatus and method for accurately providing information as to the location of an interface between a first medium and a second medium in a vessel.
Patent CA-2194737-C (CA)
Title: Foldable returnable shipping container
Inventor: BUDOWSKI ALLAN
IPC: B65D19/18
Filed: 1997-01-09
Granted: 2001-06-05
Abstract: A returnable container suitable to be assembled to contain products, and to be disassembled for return shipping, comprises a molded base having a container bottom plate surrounded by an upstanding flange, a molded top closure having a container top plate surrounded by a depending flange, and a sleeve part suitable for providingsidewalls surrounding a space between the base and the top closure and having upper and lower margins suitable for being received within in the flanges. The sidewalls are each formed from plastic material having an outer sheet and an inner sheet held in spaced relation by a plurality of vertically orientated webs, and the sidewalls are connected by hinge sections comprising flexible continuations of the outer sheets of adjacent sidewalls which extend across gaps between inner sheets of adjacent sidewalls. The hinge sections are capable of forming rounded corners of the container when the container is erected and the hinge sections are also capable of forming 180° bends between adjacent sections, of which one is a reverse bend joining two of the sidewalls which are folded with their outer surfaces juxtaposed, so that for return shipping the sleeve can be folded substantially flat to occupy a space lying between the top and bottom plates and within the flanges of the collapsed base and top closure.