baber/WOPTO huggingface dataset:
Patent CA-2288485-A1 (CA)
Title: Preparation of trifluorobenzoic acids
Inventor: MAIER ANDREAS
IPC: C07C51/347
Filed: 1999-11-03
Abstract: The present invention relates to a process for preparing trifluorobenzoic acids of the formula (see above formula I) in which R is a straight-chain or branched alkyl radical having 1 to 6 C-atoms, an unsubstituted phenyl radical, a substituted phenyl radical which contains one or two alkyl or alkoxy groups having in each case 1 to 4 C atoms, or an araliphatic radical having 7 to 12 C atoms, which comprises reacting a compound of the formula (see formula II) in which R1 and R2 are identical or different and are -CN, -COOR3, where R3 is H, Li, Na, K, MgCL, MgBr, Mgl, 1/2Mg, 1/2Ca or an alkyl radical having 1 to 6 C  atoms, or -CONR4R5, where R4 and R5 are identical or different and are an alkyl radical having 1 to 6 C atoms, with at least one organometallic compound of the formula CuR, CuLiR2, MgXR, ZnR2, LiR, ALX2R, ALXR2, ALR3 or AL2CL3R3, where R is as defined in formula (1) and X is Cl, Br or I, in the presence of an inert solvent at from -80 to +150°C, treating the reaction product in the presence of water in the absence or presence of an acid at from 0 to 250°C and decarboxylating the resulting trifluoroisophthalic acid of the formula   at from 80 to 280°C.
Patent CA-2289412-A1 (CA)
Title: Device for fixing lower members and fluid control apparatus incorporating same
Inventor: TETSUYA KOJIMA
IPC: F16K1/52
Filed: 1999-11-15
Abstract: Bolt bores in lower members each comprise a large-diameter portion larger than the head of a bolt in diameter, and a small diameter portion extending downward from the large-diameter portion with a stepped portion formed therebetween and having a diameter intermediate between the diameter of the bolt head and the diameter of the shank of the bolt. A heat insulator has a spacer inserting hole. A hollow cylindrical spacer having an inside diameter larger than the diameter of the bolt shank is inserted through the small-diameter portion of the bolt bore and the spacer inserting hole so that the upper end of the spacer is positioned in the large-diameter portion. The spacer has a lower end bearing on a support member. A hollow cylindrical elastic member is interposed between the bolt head and the stepped portion for biasing the lower member toward the support member.
Patent CA-2290827-A1 (CA)
Inventor: KORISEVA JUHA
IPC: F16C13/00
Filed: 1998-05-26
Abstract: The invention concerns a thermoplastic-coated roll for a paper/board machine, a method for manufacture of the roll, a composition of a thermoplastic coating for the roll, a method of calendering by using rolls in accordance with the invention, and paper/board manufactured by means of such rolls.
Patent CA-2292279-A1 (CA)
Inventor: LEYS JOHN A
IPC: F16K11/048
Filed: 1999-12-16
Abstract: A valve made principally of plastic has a creep compensating features providing consistent engagement between valve members and their respective valve seats, minimizing creep, and compensating for any creep that does occur. The features compensate for compression of internal valve components as well as extension of the valve body. In a manually operated three way valve embodiment of the invention, a trapped spring mechanism inserted between an actuator portion and the upper valve member provides the closure force for the upper valve member on the upper valve seat. A conventional lower spring provides the closing force for the lower valve member. Valves according to the invention are particularly suitable for quarter-turn three- way manual diaphragm valves and for applications in the semiconductor industry.
Patent CA-2292583-A1 (CA)
Inventor: CHANEY CHRISTINE S
IPC: H04W4/16
Filed: 1998-06-05
Abstract: La présente invention concerne un système et un procédé permettant la reprise d'une communication téléphonique demandée par un appelant (102) à un centre téléphonique (120) appartenant à un réseau de télécommunications (100). Lorsqu'un appelant tente d'appeler un centre téléphonique non disponible, le système obtient pour l'appelant des informations de rappel, parmi lesquelles un numéro de téléphone où joindre l'appelant. Il est alors mis fin à l'appel. Lorsque le centre téléphonique redevient disponible, le système reprend l'appel en appelant l'abonné demandeur au numéro précité, en établissant la communication avec le destinataire, et en réunissant les deux appels.
Patent CA-2295800-A1 (CA)
Title: Resolution of amines
Inventor: FRIGOLA-CONSTANSA JORDI
IPC: A61K31/415
Filed: 1998-07-06
Abstract: The process comprises reacting the mixture consisting of 2-¢phenyl(1-methyl-1H-pyrazol-5-yl)methoxy!-N,N-dimethyl-etanamine (I) with an enanthiomer of an optically active acid in order to form a diasteroisomer salt, separating said salt and releasing the enantiomer from said compound (I). The dextrorotatory enantiomer of (I) can be obtained by reacting a racemic or non racemic mixture of (I) with (')-ditoluyl-L-tartaric acid, optionally mixed with ptoluensulfonic acid. The compound (I) has analgesic properties and its most active enantiomer is the destorotatory enantiomer.
Patent CA-2296373-A1 (CA)
Inventor: SAMOUR CARLOS M
IPC: A61K31/415
Filed: 1998-06-15
Abstract: A composition for the topical transdermal administration to the penis is based on prostaglandin E1. The composition is non-irritating and effective for relieving erectile impotence or other penile erectile dysfunction. A penetration enhancing effective amount of a dioxolane, dioxane, or acetal skin penetration enhancing compound in a pharmaceutically acceptable aqueous alcoholic carrier is used to facilitate the penetration of the prostaglandin E1 active ingredient through the skin.  Phentolamine or prazosin may be used in combination with or in I place of prostaglandin E1.
Patent CA-2297418-A1 (CA)
Title: Entrapping additives in carbohydrate bodies
Inventor: YANG ROBERT K
IPC: A61K9/16
Filed: 1998-07-13
Abstract: The present invention is a method of entrapping an additive within carbohydrate bodies. The additive is drawn into the internal structure as a fluid during transformation of the bodies from a substantially amorphous state to a crystalline state. The present invention is also a delivery system including a carbohydrate body having an internal free volume space defined by an at least partially crystalline structure at equilibrium conditions, and an additive loaded within the carbohydrate body.
Patent CA-2299855-A1 (CA)
Inventor: MATSUOKA YUTAKA
IPC: H01R13/24
Filed: 2000-02-29
Abstract: There are provided blocks (A), (B), .multidot. corresponding to pieces of sub-harness (A), (B), .multidot. . In each block, there are provided a longitudinal opening 14 and a bottom opening 16, which are arranged in the vertical direction, at a forward end portion of each accommodating chamber 11 for accommodating the spring contact point 23a of the connecting terminal 20(A), 20(B), .multidot.. When the blocks are put on each other in the vertical direction, the top 23a of the spring contact point 23 on the lower block 10(A) side gets into the bottom opening of the upper block 10(B) from the longitudinal opening 14.   Therefore, the top 23a of the spring contact point 23 on the lower block 10(A) side comes into contact with the rear face of the base piece 23b of the spring contact point 23 on the upper block so that electrical continuity can be attained.      Due to the foregoing, the splice between the pieces of sub-harness (A) and (B) can be absorbed.
Patent CA-2301273-A1 (CA)
Title: Table with seats that move en masse around its perimeter
Inventor: RAIS PAOLO
IPC: A47B83/02
Filed: 1998-07-30
Abstract: A unit is described, consisting of an oblong table (1) and a plurality of seats (2i) arranged approximately the same distance apart around its perimeter, which is fitted with means (6, 7, 8, 9, 11, 12, 13) designed to move the said plurality of seats (2i) along en masse around the abovementioned perimeter at a predetermined speed.
Patent CA-2301365-A1 (CA)
Title: Cool touch worklight assembly
Inventor: QIAN PEI SHENG
IPC: F21V15/02
Filed: 2000-03-20
Abstract: A halogen worklight having a first outer housing and a second housing containing a light source. The second housing is disposed within the first housing. A gap is maintained between the first housing and the second housing in which heated air is contained. To maintain the temperature of the first housing below that of the second housing cooling holes are located on the first housing for venting the heated air.
Patent CA-2303200-A1 (CA)
Title: Oral liposomal delivery system
Inventor: KELLER BRIAN C
IPC: A61K9/66
Filed: 1998-09-04
Abstract: A liposome-capsule dosage unit system for the delivery of a biologically active material is formed by encapsulating a biologically active materials in liposomes and then placing the liposome encapsulated material into a capsule.  The capsule is typically a soft gel capsule or a two piece capsule capable of tolerating a certain amount of water. A less water tolerant capsule can be employed if the liposomes are dehydrated prior to placement within the capsule. Biologically active material include drugs, nutritional supplements, vitamins, minerals, enzymes, hormones, proteins and polypeptides. The system is especially suited for the delivery of materials with poor oral solubility, materials that are not absorbed or are poorly absorbed from the gastrointestinal tract, and materials that have conventionally been given by an invasive route. The system can be administered orally, intra-occularly, intranasally, rectally, or vaginally.
Patent CA-2304723-A1 (CA)
Title: Microelectromechanical positioning apparatus
Inventor: WOOD ROBERT L
IPC: G01B7/004
Filed: 1998-11-05
Abstract: A microelectromechanical (MEMS) positioning apparatus is provided that can precisely microposition an object in each of the X, Y and Z directions. The MEMS positioning apparatus includes a reference surface, a support disposed in a fixed position to the reference surface, and a stage defining a XY plane that is suspended adjacent to the support and over at least a portion of the reference surface. The MEMS positioning apparatus also includes at least one and, more typically, several actuators for precisely positioning the stage and, in turn, objects carried by the stage. For example, the MEMS positioning apparatus can include first and second MEMS actuators for moving the stage in the XY plane upon actuation. In addition, the MEMS positioning apparatus can include a Z actuator, such as a thermal bimorph structure, for moving the stage in the Z direction.
Patent CA-2304920-A1 (CA)
Title: Method for making plant-cultivating vessels from excretive sludge of domestic animals
Inventor: KOH MEENG-TER
IPC: A01G9/02
Filed: 2000-04-07
Abstract: A method for making plant-cultivating vessels from excretive sludge of domestic animals includes picking a wet sludge containing 78%~83% of water and adding the wet sludge into a waste pulp tank. The combination of the wet sludge and waste pulp is stirred and then filled into a mold for making vessels. The mold is baked and the formed vessel is removed from the mold after formation. The vessel so made may be combined with the soil after decomposition without any treatment, which is advantageous for cultivation of flowering plants and primary cultivation of plants. An environment-protective and waste-reusing product is provided accordingly.
Patent CA-2305513-A1 (CA)
Title: Transparent substrate bearing an anti-stain, hydrophobic coating, and process for making it
Inventor: YAN YONGAN
IPC: C09D183/04
Filed: 1998-10-14
Abstract: A process is described for applying a thin-film, hydrophobic, oil-repellant, stain-resistant, optical coating to a transparent substrate. The coating is applied using a treatment solution that incorporates an organosilane in a solvent of water, alcohol, and ethylene glycol or glycerol, and an acid catalyst, with the organosilane having a preferred concentration in the range of 0.05 to 50 mmole per liter. The treatment solution preferably is prepared in a two-step procedure, in which the organosilane is first reacted in concentrated form and then diluted. After the treatment solution has been applied to the transparent substrate, e. g., by dip coating, the coated substrate is dried, preferably by flash-drying at room temperature and then heating it to a prescribed elevated temperature, in a prescribed humidity.
Patent CA-2311075-A1 (CA)
Title: High-speed overrunning, instantaneous, accessory decoupler
Inventor: BABETIN PAVEL
IPC: F16D41/066
Filed: 2000-06-08
Abstract: The present invention is a pulley having a high speed clutch mechanism located in the hub of the circular pulley which mechanically couples a drive belt to an accessory spindle. The circular pulley has a central hub opening and a peripheral edge configured to engage the drive belt. The hub opening has a central axis, an internal diameter, and an inside surface. An annular member is coaxially and rigidly mounted to the inside surface of the pulley hub opening, the annular member having a central opening with an inside diameter, a central axis and an inside surface. Coaxially mounted within the central opening of the annular member is a cylindrical member having a first and second opposite end portions and a central portion between the end portions. The central portion of the cylindrical member has an outside surface, an outside diameter and a plurality of grooves equally spaced along the circumference of the outside surface. Each groove is defined by a first sloping wall and a second sloping wall, the sloping walls being configured to retain a roller bearing between them. The outside diameter of the central portion of the cylindrical member is slightly less than the inside diameter of the annular member. The cylindrical member is mechanically coupled to the accessory spindle. A first bearing is mounted to the first end portion of the cylindrical member and a second bearing is mounted to the second end portion of the cylindrical member. Both of the bearings are dimensioned and configured to position the cylindrical member at the center of the pulley hub with the annular member being positioned between the bearings. Furthermore, the bearings are also dimensioned so that the cylindrical member does not touch the annular member. Finally, the first and second sloping walls and the roller bearings are all dimensioned and configured to permit the cylindrical member to rotate freely in a first direction relative to the annular member, while preventing the annular member from rotating in the first direction relative to the cylindrical member.
Patent CA-2313068-A1 (CA)
Inventor: SHELKE RANDY
IPC: A01C23/04
Filed: 2000-06-29
Abstract: An apparatus for applying agricultural liquid chemical to plants by contact comprises a liquid chemical reservoir and a porous conduit extending lateral to the direction of travel of the apparatus and located at a vertical height above the ground. The conduit wall is operative to allow liquid chemical under pressure in an interior of the porous conduit to pass through the conduit wall. An absorbent wiper covers the porous conduit and absorbs liquid chemical and becomes wet such that contact with the wiper results in transfer of liquid chemical onto a plant. A pump draws liquid chemical from the reservoir and delivers same under pressure to the porous conduit. A control adjusts the liquid chemical pressure in the porous conduit from zero to a flow pressure. The apparatus may be manufactured as a kit for attachment to a conventional sprayer.
Patent CA-2313572-A1 (CA)
Inventor: EGUCHI TAKAHIRO
IPC: B60W10/10
Filed: 2000-07-05
Abstract: In an apparatus for controlling a starting clutch (7) of a vehicle having a function of stopping engine idling so that an engine (1) is automatically stopped under given conditions when the vehicle is at a standstill, the starting clutch (7) being disposed in a transmission of the vehicle in series with a belt type continuously variable transmission mechanism (5) which receives an input of a power from the engine through a power transmission mechanism having built therein hydraulically operated frictional engaging elements (64, 65), the vehicle start-up from the state of engine stopping is made smoothly at a good response. At the time of vehicle start-up from the state of engine stopping, when the rotational speed (NDR) of the drive pulley (50) of the transmission mechanism (6) has increased to a predetermined speed (YNDR2), the control mode of the starting clutch is switched from the waiting mode in which the engaging force of the starting clutch (7) is kept below a creeping force which causes the vehicle to creep, to a running mode in which the engaging force of the starting clutch (7) is increased above the creeping force.
Patent CA-2313756-A1 (CA)
Title: Plasma mass filter
Inventor: OHKAWA TIHIRO
IPC: H01J49/26
Filed: 2000-07-07
Abstract: A method for separating charged particles according to their mass requires providing a multi-species plasma in a chamber The plasma includes both relatively low-mass charged particles (M1) and relatively high-mass charged particles (M2) which are influenced by crossed electric and magnetic fields (E × B) in the chamber. Specifically, the crossed fields (E × B) rotate the particles M1 and M2 in respective orbits that are characteristic of the mass of the particular particle. Inside the chamber, each charged particle has a respective cyclotron frequency (.OMEGA.), and the plasma is maintained with a density wherein the collisional frequency (v) of particles in the chamber relates to the cyclotron frequency such that their ratio is greater than approximately one (.OMEGA./v >=1). Additionally, a collector is positioned to intercept the particles (M2) in their orbits and to thereby separate the particles (M2) from the particles (M1).
Patent CA-2315084-A1 (CA)
Inventor: SCHULZ GUNTHER
IPC: B22F9/08
Filed: 1998-12-14
Abstract: L'invention concerne un procédé permettant de produire des poudres fines à habitus de préférence sphérique, par atomisation de matières fondues avec des gaz. Afin de parvenir à un mode de fabrication économique de fines poudres atomisées et d'éviter en outre des périodes d'arrêt inhérentes à des engorgements dus à la présence de matières fondues impures, ou inhérentes à des figeages dus à des déperditions de chaleur, il est prévu selon l'invention que la matière fondue (5) s'écoule de la tuyère (4) sous forme de pellicule (6), de section transversale de sortie sensiblement rectangulaire, qu'elle sorte ensuite conjointement avec un gaz d'atomisation en passant par une tuyère à gaz (3) d'abord convergente, puis divergente, de section transversale sensiblement rectangulaire, sous forme de tuyère de Laval. L'écoulement gazeux laminaire accéléré dans la partie convergente de la tuyère de Laval (3) stabilise la matière fondue sous forme pelliculaire (6) et l'étire simultanément, jusqu'à ce que ladite matière fondue sous forme pelliculaire (6) s'atomise uniformément sur toute la longueur, après avoir passé la section transversale (9) la plus étroite.
Patent CA-2316596-A1 (CA)
Title: System and method for producing a conductivity log unaffected by shoulder effect and dip from data developed by a well tool
Inventor: MINERBO GERALD N
IPC: G01V3/28
Filed: 2000-08-22
Abstract: A system and method for producing a conductivity log, unaffected by shoulder effect and dip, from voltage data developed by a well tool (205) disposed in a borehole. The method involves accessing the voltage data developed by the tool, processing the data, reconstructing two-coil voltage data, and computing differences of the two-coil data, to derive a conductivity profile representative of the formation. A system including a well tool adapted to move through a borehole with an apparatus (210) coupled to the tool. The apparatus adapted with means to access voltage data developed by the receivers disposed on the well tool. The apparatus further adapted with means for boosting the voltage data, means for reconstructing two-coil voltages from the boosted voltage data, means for processing the reconstructed two-coil voltage data, and means for producing a conductivity log from the processed two-coil voltages.
Patent CA-2320405-A1 (CA)
Inventor: PERETZ JACOB
IPC: A61C15/04
Filed: 2000-09-22
Abstract: Our invention relates to a "THE DISPOSABLE DENTAL CARTRIDGE FLOSSER" a particular application is for the device to be able to effectively floss and clean one's teeth free of food debris, plaque, tartar, and other such material imbedded in-between one's teeth, in particular after having a meal. The device's main focus is to replace the awkward us of tying and twining the dental floss thread into one's fingers and hands (use of the right hand and left hand) to floss one's teeth by having a factory made and manufactured individual cartridge type disposable flosser to eliminate this time consuming process. By having a factory made individual type cartridge flosser, one can load the cartridge flosser and after each use one can remove, throw away or rinse it if desired.  One can also replace it with a new, unused cartridge. The invention is designed not only to eliminate the use of one's hand in flossing but also to dispense the dental floss by way of the cartridge in highly effective tension on the floss string calibrated manner. Because of the nature of its intended use and purpose for personal use in one's oral hygiene and dental care and for safety and health reasons, the device is designed and manufactured for use as a one-time use disposable item. The device is therefore highly recommended for individual use only and recommended for use much like a toothbrush in a personal way.
Patent CA-2320747-A1 (CA)
Inventor: REINHOLDT BERND
IPC: E21B17/10
Filed: 1999-02-08
Abstract: A centralizer which comprises a pair of annular bands (2, 3) which are spaced apart by a plurality of hollow members (4 to 9) characterised in that said hollow members (4 to 9) are each provided with at least one window (24, 25, 26) having a roller (12, 13, 14) freely rotatably mounted therein.
Patent CA-2322318-A1 (CA)
Inventor: SORENSEN RENE
IPC: H04M1/04
Filed: 1999-03-12
Abstract: The present invention concerns a lifting device which is configured to be coupled mechanically to a given telephone apparatus, said telephone apparatus having a handset and a fixed part, and whereby the lifting of the handset activates a switch in the telephone apparatus. The lifting device (1) comprises a movable element (16, 17, 22) which is configured to be in connection with the handset and lift the handset by means of a drive unit (10) which brings about a movement of the movable element (16, 17, 22). The lifting device also comprises a bracket (2) which is configured to be placed on the telephone apparatus in between this and the handset, under which the movable element (16, 17, 22) is housed in a movable manner in the bracket (2).
Patent CA-2329907-A1 (CA)
Title: Module de flottation pour desencrage sous pression
Inventor: MCKENZIE MICHAEL
IPC: B03D1/14
Filed: 1999-04-15
Abstract: Selon cette invention, on injecte dans un récipient sous pression (22) un mélange contenant de l'air, une masse de papier faite de papier recyclé, des agents moussants et des surfactants. Le récipient possède une entrée de masse (23) et, à l'extrémité opposée, une sortie de masse (50), ainsi que trois sorties (38, 58, 68) disposées le long de la partie supérieure du récipient, entre l'entrée et la sortie. La première sortie supérieure, située près de l'entrée, est séparée des deuxième et troisième sorties par un déflecteur (44), les deuxième et troisième sorties étant séparées de la sortie de masse par un autre déflecteur (52). Chaque sortie est munie d'une vanne qui commande l'écoulement de cette sortie. En régulant les vannes de sortie (62, 64, 70), on évacue la mousse et l'encre en excès à travers les première et deuxième sorties, à partir de l'entrée de masse, alors que la masse est évacuée à travers la troisième sortie, qui se trouve le plus près de la sortie de masse. La masse qui passe par la troisième sortie est recyclée à travers le récipient.