baber/WOPTO huggingface dataset:
Patent CA-2157916-A1 (CA)
Title: Method of cleaning and maintaining potable water distribution pipe systems
Inventor: HIEATT ALLEN C
IPC: C23G1/08
Filed: 1994-03-22
Abstract: A method of cleaning and maintaining potable water distribution system which have reduced flow due to an increase of water scale deposits, sediment, and the like on the inside surface of the pipe is disclosed. An aqueous acidic cleaning solution (12) is introduced and circulated through the pipe (25) to be treated for a sufficient time to dissolve and loosen the scale and sediment, and the spent solution containing dissolved or suspended scale and sediment is flushed from the pipe (25) to provide a cleaned pipe with improved water flow. It is also desirable to flush the water distribution pipe system with high pressure water after the treatment to remove loosened scale and sediment that was not removed during the circulation and flushing of the treating solution (12).
Patent CA-2160202-A1 (CA)
Title: Absorbable polymer and surgical articles fabricated therefrom
Inventor: ROBY MARK S
IPC: C08G63/664
Filed: 1995-10-10
Abstract: Absorbable copolymers are fabricated from a predominant component of dioxanone randomly copolymerized with minor amounts of other bioabsorbable monomers. The copolymers are useful in forming surgical articles, including both monofilament and multifilament sutures.
Patent CA-2160221-A1 (CA)
Title: Electrode for electrochemical process and use thereof
Inventor: PASTACALDI ALESSANDRA
IPC: C25B11/04
Filed: 1995-10-10
Abstract: A novel electrode, for electrochemical processes, consists of an electrically conductive substrate bearing a coating of platinum, iridium oxide and tin oxide with an iridium oxide content of more than 8 (pref. at least 25) wt.%. Pref. the coating comprises (by wt.) 12-17% platinum, 30-40% iridium oxide and 53-58% tin oxide.
Patent CA-2161323-A1 (CA)
Title: Apparatus and method for high speed data communication between an external medical device and an implantable medical device
Inventor: COX TIMOTHY J
IPC: H02J17/00
Filed: 1994-04-28
Abstract: A method of communication data between an external device and an implantable medical device wherein a first pulse is transmitted as electromagnetic energy from one device to the other, is received and stored as electrostatic energy in the second device and, after a delay period representing data to be communicated, the stored energy is released and transmitted as electromagnetic energy back to the first device. A communication circuit in the implantable device for accomplishing the method includes an antenna coil, a non-linear electronic component in circuit communication with the antenna coil, a storage capacitor in circuit communication with the antenna coil and non-linear electronic component for storing energy received by the antenna coil, and a switch for selectively connecting the charged storage capacitor and the antenna coil to discharge the charge stored in the capacitor into the antenna coil.
Patent CA-2163661-A1 (CA)
Title: Rechargeable battery cell having integral vibrating means
Inventor: MEADOWS VERNON
IPC: H01M10/0565
Filed: 1994-07-18
Abstract: A rechargeable battery cell (10) has an integral vibrating means. The cell has a positive electrode (14), a negative electrode (16), and an electrolyte (18) disposed between the two electrodes. The electrolyte contains a piezoelectric material (20) that vibrates when subjected to an alternating electric field. In one embodiment, at least one of the electrodes contains a piezoelectric material that functions as a vibrating means when subjected to an alternating electric field. In another embodiment, a piezoelectric material that functions as a vibrating means when subjected to an alternating electric field is attached as part of a current collector (22) to at least one of the electrodes. The piezoelectric material performs an additional function of being an electronic insulator for the purpose of stacking the cells.
Patent CA-2164119-A1 (CA)
Title: 1-substituted isatin and oxindole derivatives as inhibitors of acetylcholinesterase
Inventor: BOAR BERNARD ROBIN
IPC: A61K31/404
Filed: 1994-05-13
Abstract: The present invention relates to novel compounds having general formula (I) wherein n is 3,4,5,6 or 7; X represents one or more substituents independently selected from hydrogen, lower alkyl, aryl, lower alkoxy, halogen, trifluoromethyl, nitro, -NHCOR where R is lower alkyl or aryl, -NR1R2 where R1 and R2 are independently hydrogen or lower alkyl or together form a ring, or cycloalkyl, cycloalkenyl or bicycloalkyl either optionally further substituted by lower alkyl; Y is (a) or (b) where R3 and R4 are independently hydrogen, lower alkyl, lower alkoxy or together form a cyclic acetal; Z is lower alkyl; and W represents one or more substituents independently selected from hydrogen, lower alkyl, lower alkoxy or halogen; stereo and optical isomers and racemates thereof where such isomers exist, as well as pharmaceutically acceptable acid addition salts thereof and solvates thereof having therapeutic activity, intermediates for their preparation, processes for their preparation, pharmaceutical formulations containing said compounds medicinal use of said compounds.
Patent CA-2164843-A1 (CA)
Title: Novel therapeutic drug delivery systems
Inventor: UNGER EVAN C
IPC: A61K47/48
Filed: 1994-05-12
Abstract: Therapeutic drug delivery sytems comprising gas-filled microspheres comprising a therapeutic are described. Methods for employing such microspheres in therapeutic drug delivery applications are also provided. Drug delivery systems comprising gasfilled liposomes having encapsulated therein a drug are preferred. Methods of and apparatus for preparing such liposomes and methods for employing such liposomes in drug delivery applications are also disclosed.
Patent CA-2169945-A1 (CA)
Title: Factor for fibroblast colony forming unit
Inventor: JONES SARAH JANE
IPC: C07K1/22
Filed: 1994-08-26
Abstract: A colony forming unit fibroblast (CFU-F) factor has been identified having the following characteristics: (a) it is a polypeptide present in P388 or 416B (ECACC provisional accession no. 94082401) cells and capable of extraction from the cell lysate or conditioned medium; (b) when added to explanted bone marrow adherent cells which are below the level capable of forming fibroblast colonies, it is capable of inducing the formation of fibroblast colonies; (c) it binds heparin-agarose at physiological pH; (d) the heparin binding fraction, when subjected to reducing SDS-PAGE, produces bands at about (12, 15, 16 and 17kD); (e) its activity is not affected by heating at 100 °C for 10 minutes; (f) it can be purified from the cell lysate by fractionation by anion-exchange chromatography, eluting at 0.3M sodium chloride; followed by size exclusion chromatography, optionally followed by further purification such as HPLC and/or SDS-PAGE.
Patent CA-2171685-A1 (CA)
Title: Methods and apparatus for managing computer processes
Inventor: MENGES ANTHONY W
IPC: G06F13/00
Filed: 1996-03-13
Abstract: A number of methods, apparatus, and data structures are disclosed for managing computer processes. In one aspect, a daemon process which manages server processes includes an active server table and a locator service. The locator service can look up and register server processes in the active server table. Furthermore, the locator service can start up server processes. In some embodiments, the locator service includes a look-up object and a server process registration object which perform the tasks of the locator service. In other embodiments, methods for managing server process such as starting and registering the server processes are taught. In one specific method, a daemon process performs a variety of steps in response to receiving a look-up call for a target object. These steps include obtaining a server identifier for the target object, determining the state of a server process, and returning addressing information corresponding to the server process under which the target object will activate. In related method aspects the daemon process will start the server process if it isn't running and/or wait until the server process is running to return the addressing information. In a separate method aspect, a server process self-starts; receiving an object reference for a desired target object, receiving a server process identification number, creating a communications port for itself, forming addressing information for itself, obtaining an object reference for a server process registration object, and registering itself by calling the server process registration object to invoke a register new process operation.
Patent CA-2173458-A1 (CA)
Title: Method and apparatus for gas regeneration in an anesthesia breathing circuit
Inventor: GRABENKORT RICHARD W
IPC: A61M16/22
Filed: 1994-10-11
Abstract: A method and apparatus are provided for use in the delivery of an inhalation anesthetic to a patient while employing a closed loop or rebreather gas recirculation system.  The method and apparatus control the system temperature to minimize heat buildup, including heat buildup resulting from an exothermic reaction between a patient's exhaled breath and a scrubbing substance that removes a selected constituent from the patient's exhaled breath.  The apparatus includes an enclosure containing a scrubbing substance. The enclosure defines an influent opening for admitting the exhaled breath along a first path into the scrubbing substance and defines an effluent opening through which gases can be discharged from the enclosure.  The apparatus also includes a second path adjacent the first path between inlet and outlet openings whereby a coolant fluid can flow along the second path to remove heat from the interior of the enclosure.
Patent CA-2174916-A1 (CA)
Title: Aqueous compositions containing acetoacetate functional polymer and multifunctional amine
Inventor: SUGIYAMA TAKAYUKI
IPC: C09D201/02
Filed: 1996-04-24
Abstract: To provide novel aqueous coating compositions that offer excellent film forming properties, solvent resistance, especially resistance to water and alkalis, and tight adhesion. An aqueous coating composition containing acetoacetate functional polymers having acetoacetate functional groups and acid functional groups, and having a weight-averaged molecular weight of 100,000 or greater, and multifunctional amine.
Patent CA-2180114-A1 (CA)
Title: Game machine
Inventor: TAKEMOTO TAKATOSHI
IPC: A63F5/04
Filed: 1994-12-28
Abstract: A plurality of display areas 110A-1101 change and display a plurality of predetermined types of symbols in sequence, and a control section performs display control for causing each of the display areas to make a transition from display in a symbol stop condition to that in a dynamic condition in which the symbols change dynamically and further to make a transition from the display in the dynamic condition to that in the stop condition. An active gaming area determination section determines at least one display area used as an active gaming area among the plurality of display areas. A determination section determines whether or not a combination of the symbols displayed in each of the display areas selected by the active gaming area determination section is a predetermined combination when the display in the dynamic condition produced in the display areas determined by the active gaming area determination section becomes the display in the stop condition. A win processing section executes a predetermined game win process when the determination section determines that the combination of the symbols is the predetermined combination.
Patent CA-2180614-A1 (CA)
Inventor: SUMIEJSKI JAMES L
IPC: C10N20/02
Filed: 1996-07-05
Abstract: A shear stable composition for reducing noise in a push belt continuously variable transmission. The composition comprises an oil of lubricating viscosity, an overbased metal salt of an organic acid and a shear stable viscosity index improver.
Patent CA-2182288-A1 (CA)
Title: Process for the preparation of alkylene glycols
Inventor: REMAN WILLEM GEORGE
IPC: C07C29/10
Filed: 1995-01-30
Abstract: A process for the preparation of alkylene glycols by reacting an alkylene oxide with water in the presence of a catalyst composition comprising a solid material having one or more electropositive sites, which are coordinated with one or more anions other than metalate and halogen anions, with the proviso that when the solid material is an anionic exchange resin of the quaternary ammonium type and the anion is bicarbonate, the process is performed in the substantial absence of carbon dioxide.
Patent CA-2187312-A1 (CA)
Title: Heme-bearing microparticles for targeted delivery of drugs
Inventor: TAKLE GARRY B
IPC: A61K47/48
Filed: 1995-04-12
Abstract: Methods and compositions are described for the directed delivery of ribozymes or other compounds to specific cells which express the heme receptor on their surface using heme-bearing microparticles. Such microparticles are useful in the directed delivery and accumulation of drugs designed to treat hepatic diseases such as viral hepatitis or hepatoma.
Patent CA-2188271-A1 (CA)
Title: Powerline communications network employing tdma, fdma and/or cdma
Inventor: BROWN PAUL ANTHONY
IPC: H04B3/54
Filed: 1995-04-20
Abstract: Communications apparatus is disclosed which is adapted for use with a mains electricity transmission and or distribution network, and includes signal transmission and or reception means (232). and frequency conversion means (200-208) for converting the frequency of a signal transmitted or received by signal transmission and or reception means to a frequency which facilitates improved propagation of the signal on the network. Preferably the signal transmission and or reception means is adapted to operate according to a telephony standard which uses a relatively high carrier frequency (e.g. CT2), and the frequency conversion means is usable to convert a signal having a relatively high carrier frequency to a signal having a lower carrier in frequency.
Patent CA-2188335-A1 (CA)
Title: Optical fiber filter
Inventor: OKUDE SATOSHI
IPC: G02B6/00
Filed: 1996-10-21
Abstract: The present invention relates to an optical fiber filter provided with a portion which selectively reflects or transmits light of a specific wavelength, this portion comprised of a multimode optical fiber in which the refractive index of the core changes periodically along the longitudinal direction thereof.  Furthermore, this multimode optical fiber has an input end and an output end, with at least the input end of the multimode optical fiber being connected to a single mode optical fiber.  As a result of forming an optical fiber filter in this way, it is possible to realize an optical fiber filter that exhibits no transmission loss at wavelengths other than the center wavelength.
Patent CA-2189458-A1 (CA)
Inventor: BUESCHER THOMAS
IPC: H01H50/14
Filed: 1995-05-02
Abstract: Le relais modulaire décrit comporte un socle (1) sur lequel est monté un système de relais (2, 3, 4), et une carte de circuits (6) disposée verticalement sur le socle. Des éléments de contact (41c, 42c, 43) du relais sont connectés directement, par l'intermédiaire de conducteurs, à des fiches plates dans le socle. Des conducteurs supplémentaires dans le socle forment également des connexions sous forme de fiches plates destinées à un circuit modulaire monté sur la carte de circuits. Tous les conducteurs du socle constituent d'autre part des broches de connexion soudées (51b à 56b), monobloc, qui font saillie en une rangée sur une paroi latérale du socle et sont soudées à la carte de circuits dans sa région marginale inférieure. On obtient ainsi une configuration modulaire compacte du relais avec un nombre maximal d'éléments de connexion, l'implantation de ces éléments de connexion étant variable pour différents circuits modulaires.
Patent CA-2198567-A1 (CA)
Title: Aqueous polyurethane dispersions based on 1-methyl-2,4-and/or 2,6-diisocyanatocyclohexane and their use as binders for glass fiber sizings
Inventor: AUDENAERT RAYMOND
IPC: C08G18/08
Filed: 1997-02-26
Abstract: The present invention relates to aqueous polyurethane dispersions having a resinsolids content of 20 to 60 wt %, a viscosity at 23 °C of 10 to 20,000 mPa~s and a pH of 5.5 to 8.5, wherein the polyurethane has a weight average molecular weightof 5,000 to 500,000 and a urethane group content (calculated as -NHCO-O-, molecular weight = 59) of 2.5 to 15 wt %, and is based on a polyisocyanate component containing 50 to 100 wt % of 1-methyl-2,4- and/or -2,6-diisocyanatocyclohexane.   The present invention also relates to aqueous binder compositions containing these aqueous polyurethane dispersions and known crosslinking resins and to the use ofthe aqueous polyurethane dispersions and aqueous binder compositions as binders for glass fiber sizings.
Patent CA-2199384-A1 (CA)
Inventor: SINOFSKY EDWARD L
IPC: A61B18/22
Filed: 1995-09-08
Abstract: Optically transmissive fiber tip assemblies having radiation-scattering particles incorporated therein are disclosed for use in phototherapy. In one embodiment, diffusers with reflective end caps are disclosed. As radiation propagates through the fiber tip, a portion of the radiation is scattered in a cylindrical (or partially cylindrical) pattern along the length of the fiber tip. Radiation which is not scattered during this initial pass through the tip can be reflected by at least one surface of the assembly and returned through the tip. During this second pass, the remaining radiation (or at least a major portion of this returning radiation) again encounters the scatterers which provide further radial diffusion of the radiation. The scattering medium and the reflective end cap can interact to provide a substantially uniform (or other predefined) axial distribution of laser radiation over the length of the tip apparatus. In another embodiment, diffusive loop assemblies are disclosed for diffusing radiation from an optical fiber.  Disposed sheaths are also disclosed, as are integral stopper devices which limit the penetration of the apparatus. The devices of the invention are useful for various medical purposes as well as the sterilization of medical instruments.
Patent CA-2201982-A1 (CA)
Inventor: GARZA-TAMEZ FEDERICO
IPC: F16F15/027
Filed: 1997-04-07
Abstract: A stabilization system protects a structure, comprising at least a slab and having a foundation formed in the earth, from the effects of seismic disturbances. Pendulum support elements, secured at upper ends to respective support columns affixed to the foundation and at lower ends to support positions of the slab, support the slab while permitting limited relative movement between the slab and the support columns in the event of a seismic disturbance. A damping system connects the slab to the foundation to impede action of forces tending to produce relative rotation between the slab and the foundation and to provide damped control of relative linear displacements therebetween. A level monitoring system monitors the respective levels of monitoring positions displaced about the slab and detects differential changes in the levels at the monitoring positions, the rods being adjustable to correct for such differential changes and thereby to reestablish a common level condition at all monitoring positions.
Patent CA-2202966-A1 (CA)
Title: Mixtures of carboxylic acid salts and carboxylic acid esters and their use as siccatives for oxidatively drying lacquers
Inventor: PATTOU ALAIN
IPC: C09F9/00
Filed: 1997-04-17
Abstract: The present invention relates to compositions containing A) 10 to 90 wt.% of one or more metal salts of long chain carboxylic acids corresponding to formula (I) (M n+)(X-)n (I), wherein M represents a metal cation, X represents a C6-C14 aliphatic and/or aromatic carboxylate and n represents an integer from 1 to 5, and B) 10 to 90 wt.% of a carboxylic acid ester corresponding to formula (I1) (see formula I1) wherein R1 represents a saturated or unsaturated aliphatic C14-C22 residue and R2 represents a C1-C4 alkyl group. The present invention also relates to a process for the production of these mixtures and to their use as drying agents (siccatives) in oxidatively drying coating compositions (lacquers).
Patent CA-2205175-A1 (CA)
Title: A polynucleotide tuberculosis vaccine
Inventor: LIU MARGARET A
IPC: A61K48/00
Filed: 1995-11-13
Abstract: Genes encoding Mycobacterium tuberculosis (M.tb, proteins were cloned into eukaryotic expression vectors to express the encoded proteins in mammalian muscle cells in vivo. Animals were immunized by injection of these DNA constructs, termed polynucleotide vaccines or PNV, into their muscles. Immune antisera was produced against M.tb antigens. Specific T-cell responses were detected in spleen cells of vaccinated mice and the profile of cytokine secretion in response to antigen (85) was indicative of a Th1 type of helper T-cell response (i.e., high IL-2 and IFN-.gamma.). Protective efficacy of an M.tb DNA vaccine was demonstrated in mice after challenge with M.bovis BCG, as measured by a reduction in mycobacterial multiplication in the spleens and lungs of M.tb DNA-vaccinated mice compared to control DNA-vaccinated mice or primary infection in naive mice.
Patent CA-2206279-A1 (CA)
Title: Organic peroxide stabilization with .beta.-dicarbonyl or cyclic .alpha.-diketone compounds
Inventor: ABMA CHARLES
IPC: C07C407/00
Filed: 1997-05-27
Abstract: Organic peroxide compositions which contain a .beta.-dicarbonyl compound or a cyclic a-diketone compound as stabilizer to retard the rate of decomposition of the peroxide compound are disclosed. The stabilizer selected from the formulas (I), (II), (III), (IV)   R5-C (O) -CHR6-C (O) -R7 (III)   and mixtures thereof, wherein m is 1-5, n is 1-6, i is 0-1, x is 0-2n, y is 0-2m, R1 is alkyl containing 1 to 22 carbon atoms, phenyl, or phenyl substituted with one or more of alkyl containing 1 to 22 carbon atoms, halogen, and hydroxy, and R1 can be hydrogen where i is zero, R2 is alkyl containing 1 to 22 carbon atoms, phenyl, or phenyl substituted with one or more of alkyl containing 1 to 22 carbon atoms, halogen, and hydroxy, and when x is greater than 1, each occurrence of R2 can be the same or different and can be on the same or different ring carbon atoms, R3 is hydrogen, alkyl containing 1 to 22 carbon atoms, acyl containing 2 to 22 carbon atoms, phenyl, or phenyl substituted with one or more of alkyl containing 1 to 22 carbon atoms, halogen, and hydroxy; R4 is alkyl containing 1 to 22 carbon atoms, phenyl, or phenyl substituted with one or more of alkyl containing 1 to 22 carbon atoms, halogen, and hydroxy; and when y is greater than 1, each occurrence of R4 can be the same or different and can be on the same or different ring carbon atoms; R5 is hydrogen, alkyl containing 1 to 22 carbon atoms, phenyl, or phenyl substituted with one or more of alkyl containing 1 to 22 carbon atoms, halogen, or hydroxy; R6 is hydrogen or alkyl containing 1 to 22 carbon atoms, phenyl, or phenyl substituted with one or more of alkyl containing 1 to 22 carbon atoms, halogen, or hydroxy; or R6 can be -C (O) OR8 or -C (O) R8 wherein R8 is alkyl containing 1 to 22 carbon atoms; and R7 is phenyl or alkyl containing 1 to 22 carbon atoms.
Patent CA-2206684-A1 (CA)
Title: Top mounting faucet assembly
Inventor: BELTEMACCHI PETER P
IPC: E03C1/04
Filed: 1995-11-13
Abstract: A top mounted valve assembly having a block member with a hinged arm which is fitted through from the top of a supporting surface and actuated by a threaded actuating member. As the actuating member is turned in one direction, the hinged arm engages the underside of the supporting surface. To disengage the faucet, the actuating member is turned in the opposite direction which permits removal. Both single and dual handle faucets can be top mounted by the mounting assembly disclosed herein. An aesthetically appearing facet results wherein the actuating mechanism is hidden.