baber/WOPTO huggingface dataset:
Patent CA-2228884-C (CA)
Inventor: DESHPANDE RAVINDRA
IPC: C01B33/155
Filed: 1998-02-06
Granted: 2004-12-07
Abstract: A wet silica gel can be prepared by a process comprising the steps of contacting a stable, aqueous, fluid silica system having a pH greater than 7.5 with an ion exchange resin which removes metal ions and replaces them with H+ ions and thereby reduces the pH to less than 5.0, adding an organic liquid to the aqueous silica system, providing, however, that the organic liquid added stays in one phase with the aqueous, silica system, and does not cause the silica to precipitate, and adding a base to the silica system so that the pH of the silica system is in the range of from about 5.0 to about 7.5, and allowing the wet silica gel to form. The wet silica gel formed by this process is characterized by its high organic solvent content and the low concentration of basic metal ions.
Patent CA-2231357-C (CA)
Inventor: THOMAS DAVID M
IPC: E06B3/677
Filed: 1998-03-06
Granted: 2000-07-11
Abstract: A method for rapid manufacturing multi-pane insulating glass windows where cooling gas is used to cool temperature activated adhesive or sealant on pane spacers thereby reducing the assembly time for windows used to replace broken windows in emergency conditions.
Patent CA-2232332-C (CA)
Title: Apparatus for producing deionized water
Inventor: HUEHNERGARD MARK PHILIP
IPC: B01J47/08
Filed: 1998-03-17
Granted: 2006-07-18
Abstract: An apparatus for producing deionized water comprising an electrodialyzer having cation exchange membranes and anion exchange membranes alternately arranged between a cathode and an anode to form demineralizing compartments and concentrating compartments, and ion exchange resin particles packed in the demineralizing compartments, wherein the ion exchange resin particles are a mixture of at least two groups of ion exchange resin particles having a particle size distribution such that particles having particle sizes of from 75 to 125% of the average particle size, are at least 85 wt% of the total amount, and the average particle size of a group of ion exchange resin particles having the maximum average particle size, is at least 1.5 times the average particle size of a group of ion exchange resin particles having the minimum average particle size.
Patent CA-2232561-C (CA)
Title: Adaptateur pour un outil de coupe, permettant une reduction du bruit
Inventor: ANDREASSEN LAURITZ I
IPC: B23B29/04
Filed: 1996-09-20
Granted: 2001-02-20
Abstract: L'invention concerne un adaptateur (6) inséré entre un outil de coupe (1) et une portion de serrage d'une machine outil. L'adaptateur comprend une partie (3) permettant de serrer l'outil et une partie (5) permettant d'immobiliser l'adaptateur, maintenue par la machine. Entre ces deux parties (3, 5), un palier (2) contrôle le mouvement relatif des deux parties (3, 5) pour que ce mouvement n'ait pas d'effet significatif sur la géométrie, les dimensions ou la surface de la pièce usinée par l'outil. Un dispositif amortisseur élastique (4), également placé entre les deux parties (3, 5), permet d'amortir, de la manière souhaitée, tout mouvement relatif éventuel entre les deux parties (3, 5). Les vibrations éventuelles de l'outil sont ainsi maintenues à un niveau suffisamment bas pour ne pas contribuer à l'amplification de la pression acoustique normale d'une opération d'usinage, ce qui permet de réduire efficacement le bruit.
Patent CA-2236366-C (CA)
Inventor: MCLEAN VERNON
IPC: F16H57/035
Filed: 1998-04-29
Granted: 2002-07-09
Abstract: A cover for a pump jack includes a main rear wall with two slots for engaging over a pair of shafts of the pump jack at the drive belt on the pulleys on the drive shafts. The rear cover portion includes a peripheral wall extending around the sides and top of the peripheral edge with the bottom of the cover panel being opened. A front panel portion manufactures a single piece or as multiple pieces fits over the rear cover panel with a lip engaging onto the peripheral wall to which it is connected by latches. A stiffener member extends across the rear wall and closes the slots. A similar stiffener member can be attached across the front panel portion. Both the rear panel and the front panel are manufactured from glass fibre reinforced resin allowing the product to be manufactured in lightweight. The front cover panel can therefore be readily removed to allow replacement of the belt.
Patent CA-2240538-C (CA)
Title: Procede et appareil de determination de l'etat de fecondite des femmes
Inventor: MARETT DOUGLAS MICHAEL
IPC: A61B10/00
Filed: 1996-12-11
Granted: 2003-06-10
Abstract: Procédé et appareil de détermination de l'état de fécondité d'une femme. On constate le début de la menstruation du sujet. Une détermination quotidienne du pH de la sueur exocrine du sujet, commencée pas plus de quatre jours après la menstruation, est ensuite effectuée. On détermine le début de la période féconde en fonction d'une baisse significative du pH, suivie d'une augmentation prononcée. La crête de cette augmentation du pH indique une ovulation imminente, qui coïncide généralement avec une seconde baisse variable du pH. Cet appareil prévoit des moyens pour réaliser des lectures automatiques du pH, les analyser et afficher à l'utilisatrice son état de fécondité quotidienne.
Patent CA-2242828-C (CA)
Title: Locking device for furniture
Inventor: TOMA AUGUSTIN
IPC: E05B47/02
Filed: 1998-07-02
Granted: 2002-03-12
Abstract: The invention relates to a locking device for furniture, in particular for cabinets, desks, display cases and the like.      In order to provide an electrically actuable furniture-locking device which permits an arrangement which is adapted to the various installation situations, as well as monitoring of the open state and locked state and optionally closed-circuit or open-circuit operation, there is provided a locking housing with two introduction openings for a locking pin. In the locking housing, a locking slide is arranged such that it can be actuated electromagnetically and adjusted from a locking position into an unlocking position. A lever armature, which can be connected to the locking slide, can be connected to the locking slide such that it can optionally be switched over for closed-circuit operation or open-circuit operation.      Also proposed is a locking device for components, which is straight-forward to set in closed-circuit operation and in open-circuit operation.
Patent CA-2248273-C (CA)
Inventor: NEGAMI TAKUYA
IPC: C21B13/10
Filed: 1997-03-13
Granted: 2010-05-18
Abstract: A method of making metallic iron in which a compact, containing iron oxide such as iron ore or the like and a carbonaceous reductant such as coal or the like, is used as material, and the iron oxide is reduced through the application of heat, thereby making metallic iron. In the course of this reduction, a shell composed of metallic iron is generated and grown on the surface of the compact, and slag aggregates inside the shell. This reduction continues until substantially no iron oxide is present within the metallic iron shell. Subsequently, heating is further performed to melt the metallic iron and slag. Molten metallic iron and molten slag are separated one from the other, thereby obtaining metallic iron with a relatively high metallization ratio. Through the employment of an apparatus for making metallic iron of the present invention, the above-described method is efficiently carried out, and metallic iron having a high iron purity can be made continuously as well as productively not only from iron oxide having a high iron content but also from iron oxide having a relatively low iron content.
Patent CA-2252989-C (CA)
Title: Microcomputer and its access speed control method
Inventor: KURODA YOSHIKATSU
IPC: G21C17/00
Filed: 1998-11-06
Granted: 2002-06-11
Abstract: A microcomputer usable for a long period of time even when disposed in a high dose radiation-exposed environment, and its access speed control method are provided.  According to the microcomputer and the method, the total dose of radiation that the microcomputer receives is determined on the basis of detection signals from a radiation detecting element.  Based on the determined total dose of radiation, and table data preset by tests and stored into a memory unit, a CPU controls an access speed.  Moreover, the CPU, and the memory unit and a circuit interface unit that access the CPU are integrated on a single chip (ASIC).          These units on the same chip are deteriorated and changed in the same direction, without fail, on exposure to radiation.
Patent CA-2263037-C (CA)
Inventor: LAURENT FLORENCE
IPC: A61Q5/10
Filed: 1999-02-25
Granted: 2005-07-12
Abstract: La présente invention concerne un procédé de teinture d'oxyda- tion des fibres kératiniques humaines, consistant à appliquer sur les fibres une composition de teinture (A) contenant, dans un milieu approprié pour la teinture, au moins un précurseur de colorant d'oxydation et éventuelle- ment un ou plusieurs coupleurs, à révéler la couleur en milieu alcalin, neu- tre ou acide à l'aide d'une composition oxydante (B) contenant un agent oxydant, l'une au moins des compositions (A) et (B) contenant, en outre, une quantité efficace d'au moins un polymère amphiphile cationique choisi parmi les celluloses quaternisées modifiées par des groupements comportant au moins une chaîne grasse, choisis parmi les groupes alkyle, arylalkyle, alkylaryle comportant au moins 8 atomes de carbone, ou des mélanges de ceux-ci, et les hydroxyéthylcelluloses quaternisées modi- fiées par des groupements comportant au moins une chaîne grasse, choisis parmi les groupes alkyle, arylalkyle, arylalkyle comportant au moins 8 atomes de carbone, ou des mélanges de ceux-ci, les compositions (A) et (B) étant mélangées immédiatement avant l'emploi ou appliquées l'une après l'autre sur les fibres kératiniques.
Patent CA-2263642-C (CA)
Title: Structure d'etancheite pour turbines a gaz
Inventor: TOMITA YASUOKI
IPC: F01D11/02
Filed: 1998-06-18
Granted: 2002-08-20
Abstract: On décrit une structure d'étanchéité pour turbines à gaz destinée à régler un dégagement d'une partie du joint et réduire la quantité d'air de fuite. Cette structure d'étanchéité comprend une bague d'étanchéité (1) retenant un anneau intérieur (32) d'une aube fixe (31), des bras (2, 3) faisant saillie le long de la partie inférieure de l'anneau intérieur (32), et des joints en nid d'abeille (4a, 4b) fixés aux bras (2, 3), respectivement. Un des joints (4a) est disposé en vis-à-vis d'un dégagement prédéterminé (t) et maintient ce dernier relativement à des ailettes (11a) formées sur un bras du rotor (11) d'une nageoire (22) d'une aube mobile (21). L'autre joint (4b) est disposé en vis-à-vis d'un dégagement prédéterminé (t) et maintient ce dernier relativement à des ailettes (14b) formées sur une partie du joint (14a) d'une plaque d'étanchéité (14) de l'aube mobile (21). Ledit dégagement prédéterminé (t) peut être maintenu en continu sans être influencé par la déformation de l'anneau intérieur (32), laquelle survient après le démarrage d'une opération de la turbine à gaz, puisque les joints en nid d'abeille (4a, 4b) sont fixés aux bras (2, 3) de la bague d'étanchéité (1) montée indépendamment de l'anneau intérieur (32).
Patent CA-2266892-C (CA)
Title: Method for paclitaxel synthesis
Inventor: SWINDELL CHARLES S
IPC: C07D305/14
Filed: 1997-09-25
Granted: 2005-12-06
Abstract: A method for producing paclitaxel is accomplished by first esterifying C-7-C BZ baccatin III with a C3'-N-CBZ-C2'-O-protected (2R, 3S)-3-phenylisoserine side chain to form a first intermediate. Next, th e carbobenzyloxy groups at C-7 and at the C3' nitrogen site of the first intermediate are respectively replaced with hydrogen and PhCO to produce a second intermediate that is next deprotected at C2' by replacing the protecting group with hydrogen. The C2' protecting group is a benzyl-type protecting group, preferably benzyloxymethyl or benzyl. Excess amounts, such as six equivalents, of the side chain are preferably employed. DMAP and a dialkylcarbodiimide are also preferably used during esterification. Various preferred reaction temperatures, times, and purification steps are disclosed.
Patent CA-2272216-C (CA)
Inventor: THALER KEN
IPC: F16L21/035
Filed: 1999-05-18
Granted: 2003-04-29
Abstract: A sealing grommet is for use in coupling in sealed relation a drain pipe depending from a roof and a co-operating leader pipe. The bottom end of the drain pipe is inserted into the top end of the co-operating leader pipe.  The outside diameter of the drain pipe is smaller than the inside diameter of the co-operating leader pipe by an unspecified distance. The sealing grommet comprises an annular base having an outer surface and an upper end. The annular base defines a first opening. An annular interior wall is joined to the annular base at the upper end. The annual interior wall has a cylindrical inner surface defining a cylindrical opening aligned with the first opening, a cylindrical outer surface and a substantially uniform wall thickness. The annular interior wall has a reduced annular waist portion formed in the outer surface at the junction with the annular base portion. An annular exterior wall extends outwardly from the base in spaced apart relation to the annular interior wall. The annular exterior wall has a convex outer surface and a concave inner surface and is dimensioned such that the convex outer surface and the concave inner surface converge to form a vertex spaced from the annular interior wall. The grommet is symmetrical about an axis through the first opening, and the cylindrical opening and is integrally molded from an elastomeric material.
Patent CA-2275060-C (CA)
Title: Novel triglyceride and composition comprising the same
Inventor: AKIMOTO KENGO
IPC: A23L7/10
Filed: 1999-06-17
Granted: 2010-06-08
Abstract: The present invention provides a novel triglyceride and a composition containing that novel triglyceride having a triglyceride structure of the human breast milk type, which triglyceride has a saturated fatty acid having 16-18 carbon atoms at the position 2, at the position 1 and/or 3; which is and at least one .omega.6, .omega.9 or .omega.3 unsaturated fatty acid manufactured by subjecting a glyceride in which a saturated fatty acid having 16 to 18 carbon atoms is bonded at position 2 to transesterification using a lipase and a .omega.6, .omega.9 or .omega.3- unsaturated fatty acid.
Patent CA-2279684-C (CA)
Inventor: MCCULLOUGH SHELDON
IPC: H04M1/67
Filed: 1999-08-05
Granted: 2007-05-15
Abstract: The present disclosure discloses a method and apparatus for detecting and preventing telephone call fraud. The call fraud detector apparatus is connected to the telephone line, and includes a telephone line interface with switch hook. A  parallel set detector indicates to the microcontroller that another device has gone off hook on the telephone line. The microcontroller causes the telephone line interface switch hook to also go off hook in parallel, thereby preventing pulse dialing by the other device. The device may also include a DTMF tone detector and generator to prevent DTMF  dialing on the telephone line. The call fraud detector can provide a visual, audible, and/or tactile indication when unauthorized use of the telephone line occurs, and can be enabled or disabled by an external device. The call fraud detector can log the time and date of each unauthorized call placed on a line, and can also notify the telephone service provider when an unauthorized call is attempted.
Patent CA-2282087-C (CA)
Inventor: WESTHOFF JAMES A
IPC: E04G15/04
Filed: 1999-09-14
Granted: 2005-05-10
Abstract: Method and apparatus for forming cast members as well as inserts, insert assemblies, the combination of a mold assembly and such insert, and a combination of such insert and a reciprocatable pin assembly are all provided herein. Steps are provided in the cast member by sliding mounting flanges of hollow plastic step inserts into slots provided in the inner mold shell. The cast material is then poured into the mold. Once the cast material has set, the cast member is withdrawn from the mold assembly. The step insert mounting flanges are broken away, leaving hollow step inserts into which manhole steps are force fittingly mounted. The inserts are provided with integral cover tabs which cover larger slots provided to facilitate insertion of the step inserts, preventing leakage of the cast material into the mold assembly. Integral cover tabs are similarly provided on enforcement ring support members mounted in a similar fashion to insertion slots provided on one of the mold members to cover larger width slot portions to prevent seepage of cast material. Similar seals are provided by cylindrical-shaped inserts for use in wetcast and drycast fabrication methods.
Patent CA-2285393-C (CA)
Inventor: WEBER KLAUS
IPC: H01L21/00
Filed: 1998-04-09
Granted: 2003-06-17
Abstract: In order to obtain a device as simple and flexible as possible for conveying  substrates (7) through a substrate processing plant (11), the device has a base conveyor belt (2) and two lateral conveyor belts (4, 6) which are all provided with notches for holding the substrates (7) in an upright position.
Patent CA-2292836-C (CA)
Title: Prostaglandin pharmaceutical compositions
Inventor: DEL SOLDATO PIERO
IPC: A61K31/557
Filed: 1998-06-17
Granted: 2010-03-02
Abstract: A compound of the general formula:     A-X1-NO2 (I) wherein:     A = R(CR a R b O)u(COX)t (II) wherein: t and u are integers and are 0 or 1; X is selected from the group consisting of O, NH, and NR1, wherein R1c is a linear or branched alkyl having from 1 to 10 carbon atoms;   R a and R b, equal or different from each other, are H or C1-C3 alkyl;   R is a radical having the following formula:  (see formula III) where m o is an integer and has a value of 0 or 1.
Patent CA-2292973-C (CA)
Inventor: MACMILLAN DAVID R
IPC: F15B15/14
Filed: 1999-12-21
Granted: 2007-05-22
Abstract: A pressure activated piston and cylinder unit for use with a die block is taught which provides installation and service portions at the rear face of the unit. Also provided is a pressure activated piston and cylinder unit for use with a die block, of simplified construction.
Patent CA-2294034-C (CA)
Title: Hydrophobically modified anionic cellulose ethers
Inventor: DIJK BEREND JAN
IPC: C08B31/08
Filed: 1998-06-10
Granted: 2006-11-28
Abstract: The invention relates to a hydrophobically modified anionic cellulose ether obtainable by a process comprising reacting an alkali metal cellulose with at least three alkylating reagents A, B, and C. Reagent A  is selected from the group of haloacetic acids, alkali metal haloacetates, alkali metal vinyl sulfonates, and vinyl sulfonic acid. Reagent B has the formula R1-(OCH2CH(R2))n-P, wherein R1 represents a C2-C7 group, R2 is hydrogen or a methyl group, n is 0-2, and P represents a glycidyl ether group, a 3-halo-2-hydroxypropyl ether group, a 1,2-epoxy group, or a halide, and reagent C has the formula R3-(OCH2CH(R2))m-P, wherein R3 represents a C8-C30 group, m is 0-10, and R2 and P have the meaning as described above.
Patent CA-2294278-C (CA)
Inventor: VALENTI PIERO
IPC: C07D213/50
Filed: 1998-06-12
Granted: 2007-09-25
Abstract: Disclosed are compounds having general formula (A) wherein Ar représents phenyl, which may be unsubstituted or substituted by one, two or three substituents independently selected from Cl, Br, F, -OMe, NO2, CF3, C1-4 lower alkyl, -NMe2, -NEt2, -SCH3, -NHCOCH3; 2-thienyl; 2-furyl; 3-pyridyl; 4-pyridyl or 3-indolyl, and R represents -OCH2R1, in which R1 is selected from -CH-CMe2, -CMe-CH2, - C.ident.CH; with the proviso that where Ar represents phenyl, R is other than 3-methyl-2-butenyl. The compounds possess a valuable antiproliferation activity both on sensitive cancerous cells and on cells which are resistant to common chemotherapeutic drugs.
Patent CA-2296881-C (CA)
Title: Fluid fractionator
Inventor: HILL CHARLES C
IPC: B01D53/04
Filed: 1992-02-28
Granted: 2005-02-08
Abstract: Improved apparatus for fractioning fluid mixtures, such as air, by pressure swing molecular adsorption employs a rotary distributor valve and an array of adsorber columns.      Columns are, in one embodiment, contained within a product holding tank or, in another embodiment, attached to a product tank. Valve sequences to provide a quasi steady-state flow, allowing optimization of adsorption/desorption cycles, and eliminating most of the valves, switches and plumbing usually required.
Patent CA-2297316-C (CA)
Inventor: MIKHAIL YOUSSEF M
IPC: H01M4/92
Filed: 2000-01-27
Granted: 2005-08-23
Abstract: There is provided an electrode structure comprising a current collector sheet and first and second layers of electrode material. Together, the layers improve catalyst utilization and water management.
Patent CA-2298308-C (CA)
Inventor: VOKEY DAVID E
IPC: H04B3/54
Filed: 2000-02-09
Granted: 2005-06-14
Abstract: A coaxial drop cable safety device is used for cable television, data and telephony applications. The device is used on buried drop cable where 60 Hz powering voltages applied to the drop cable exceed low voltage safety limits and where the drop cable is buried at depths which is less than the minimum required to meet electrical safety codes. Tap end and premise end units are connected to the drop cable. The tap end unit applies a DC voltage to the centre conductor of the drop cable. A monitoring circuit in the tap end unit monitors the DC current in the centre conductor. The tap unit will immediately remove the powering voltage In the event of either an open or faulted condition on the centre conductor along the entire length of the drop cable. Additionally, while providing fault protection for the low frequency powering circuit due to tampering or damage to the cable, the fault monitoring circuit allows the high frequency television, data and telephony signals to pass with little or no impediment.
Patent CA-2298781-C (CA)
Inventor: MOTTURA SERGIO
IPC: E05B19/00
Filed: 1999-05-06
Granted: 2004-07-06
Abstract: Serrure qui comporte un cylindre (10) doté d'une série de gorges (16) montées rotatives autour d'axes respectifs. L'introduction de la clé provoque la rotation de chaque gorge (16) et amène les gorges en position de fonctionnement dans laquelle elles permettent la sortie d'un élément de verrouillage (17) porté par le cylindre (10) d'un siège formé dans le stator (8) de la serrure.
Patent CA-2299964-C (CA)
Title: Post mortem reconstitution of circulation
Inventor: GARRETT H EDWARD JR
IPC: A61M1/10
Filed: 2000-03-06
Granted: 2010-12-14
Abstract: A method of selectively perfusing a non-preserved, non-heart beating cadaver with a perfusate to recreate vascular circulation in a cadaver as a mechanism for study of the vascular function, research and teaching of surgical procedures and general medical training. The arteries or veins of the cadaver are exposed, dissected, and flushed to remove clots and excess blood. A selected arterial tree of the cadaver is perfused with a solution via inflow through a point of access and outflow through at least one point of egress.  The points of access and egress establish the limits of the circuit to be studied or used for testing.