baber/WOPTO huggingface dataset:
Patent CA-2231725-A1 (CA)
Inventor: VIRNIG MICHAEL J
IPC: C22B11/08
Filed: 1996-09-09
Abstract: Recovery of gold from alkaline cyanide leach solutions using ion exchange adsorbents, comprising (a) contacting the cyanide leach solution containing the gold with an extraction reagent comprised of a solid adsorbent carrying an organic base functionality of a compound having a pKa between about 9-14, such as a guanidyl functionality, to adsorb gold and eluting the adsorbed gold from the solid adsorbent with an aqueous alkaline eluant solution having a pH above about 12 and containing an alkali metal salt of an aromatic or aliphatic carboxylic acid having from about 4-14 carbon atoms, the eluant solution having incorporated therein from about 0.001 moles to about 0.2 moles per liter of an alkali metal cyanide salt. The solid adsorbent containing the aurocyanide complex may be contacted with a concentrated aqueous solution of a zinc tetracyanide salt whereby the aurocyanide complex is displaced with a zinc tetracyanide complex before treatment with the eluant solution.
Patent CA-2235159-A1 (CA)
Inventor: LOMAN LAWRENCE J
IPC: F16K41/04
Filed: 1996-08-22
Abstract: A ball valve stem seal comprises a primary seal washer (29), a backup ring (35), O-ring (37), washer (41) and a wave spring (43), whereby the O-ring (37) is maintained in a state of controlled squeeze where it is subjected only to radial compression.
Patent CA-2238846-A1 (CA)
Title: A method and apparatus for directly or indirectly applying a liquid or pasty application medium to one or both sides of a continuous surface
Inventor: KURTZ RUEDIGER
IPC: B05B14/00
Filed: 1998-05-26
Abstract: The invention relates to a method for directly or indirectly applying a liquid or pasty application medium (2) onto one or both sides of a continuous surface (4), wherein the application medium (2) is applied to the surface (4) in a plurality of single application regions by means of a plurality of single application nozzles (12) spaced apart from one another side by side and/or in succession in the direction of width (B) and/or longitudinal direction of the surface (4) and clearly distanced (D) from the surface (4), the application medium (2) emerging from each of these nozzles, wherein adjacent single application regions each intersect (U) at least in part in their respective edge regions, causing a layer of application medium to be produced across substantially the entire width (B) of the surface (4) to be coated. The invention also relates to an apparatus for performing this method.
Patent CA-2239674-A1 (CA)
Inventor: ALMOND GORDON S
IPC: H02G3/08
Filed: 1998-06-04
Abstract: A channel housing for a single opposed pair of port or outlet enclosures, or a plurality of such enclosures in adjacent array is provided. The channel housing may be V-shaped in cross-section so as to, advantageously, provide ease of access for a user reaching across a table to which is mounted the channel housing, accessible through an aperture in a table top surface to one of each of an opposed facing pair of outlet enclosures. Further advantageously, the channel housing provides a trough or spill-way at a lower vertex, and in a preferred embodiment, where the angled side walls of the channel housing meet, so as to capture and divert liquid, such as coffee, spilled onto the table top surface and through the aperture of the table top into the channel housing rather than having the liquid pool within the ports or outlets. The channel housing may be mountable beneath a correspondingly sized aperture in the table top as by mounting flanges or other means so that the channel housing may be mounted either flush with, or beneath the table top surface.
Patent CA-2241086-A1 (CA)
Title: Pharmaceutical compounds
Inventor: SHIH CHUAN
IPC: C07D273/08
Filed: 1996-12-20
Abstract: The invention provides novel cryptophycin compounds which can be useful for disrupting the microtubulin system, as antineoplastic agents, and for the treatment of cancer. The invention further provides a formulation for administering the novel cryptophycin compounds.
Patent CA-2242073-A1 (CA)
Title: Combined cycle power generation plant
Inventor: FUKUIZUMI YASUSHI
IPC: F22B1/18
Filed: 1998-06-30
Abstract: While, in a prior art combined cycle power generation plant, steam which is needed at the time of restart of the plant after the plant has been once stopped must be supplied from outside auxiliary boiler which requires additional facilities resulting in complexity of plant, high cost, troublesome operation, etc., the present invention provides such a plant that is able to secure the steam needed at the time of restart of the plant and to shorten the time for the plant to reach a full load.            The combined cycle power generation plant comprises a waste heat recovery boiler (20) in which a stabilizing burner (25) is incorporated at an upstream position thereof.          The stabilizing burner is ignited during the time of start-up and speed lifting of gas turbine (11) so that steam generation at the waste heat recovery boiler is accelerated and the steam is made use of effectively for cooling of gas turbine and steam turbine, and further for gland steam and the like, and the time for the plant to reach a full load can be shortened.
Patent CA-2242495-A1 (CA)
Inventor: LI QI
IPC: H04M7/00
Filed: 1998-07-06
Abstract: A method and apparatus for establishing a connection between nodes on a data network. The apparatus carries out the method by establishing a data network connection between a first node and a data network services provider, at an IP address provided by the data network services provider, transmitting an FSK message to a second node, the FSK message including the IP address, receiving the FSK message at the second node, extracting the IP address from the FSK message and establishing a connection through the data network between the second node and the first node, through the IP address.
Patent CA-2242929-A1 (CA)
Inventor: PANDEY RAMESH C
IPC: C07D305/14
Filed: 1996-12-11
Abstract: A process for producing phytochemicals from plant cell cultures is provided.  That process includes the step of culturing plant cells that produce a particular phytochemical in a multi-phase culture medium that includes an aqueous phase and a hydrophobic phase having a high partition coefficient for paclitaxel relative to the aqueous phase. The phytochemical is recovered from the hydrophobic phase. A process of screening plant cell cultures to plant cell lines that produce a particular phytochemical using the production process is also provided. A preferred phytochemical is paclitaxel.
Patent CA-2243058-A1 (CA)
Title: Ergonomical leg support system for a medical examination table
Inventor: HOYE KATHERINE A
IPC: A61G13/12
Filed: 1998-07-14
Abstract: A leg support system for use with a medical examination table in gynecological examinations has compressible thigh supports with five degrees of freedom. Four of the degrees of freedom adjust automatically and the fifth degree of freedom is manually adjustable. The system has foot rests that are in a fixed position. The system is more comfortable for users then previous systems and can accommodate users of various different sizes.
Patent CA-2243417-A1 (CA)
Title: Removable display surface
Inventor: RICHARDS ERIC W
IPC: B65D25/36
Filed: 1998-07-20
Abstract: A precisely measured removable cover for reusable beverage containers. A covering of independently resilient material is precisely cut to fit a given size and shape of pot, and the material has imprinted on it a desired promotional or advertising message and/or graphics. The covering material is removably fastened with releasable closures to the outside of the pot in such a way as not to impair significantly the natural independent resiliency of the material. Thus, dents in the pot do not generally show in the covering surface because it retains its independent resiliency, even if the blow was delivered through the covering surface.  Messages may be changed as often as suits the promotional and decorative needs of the owner of the pot, so the display surface is always timely and in top condition. An optional "window" permits display of interchangeable labels on the inside of the covering.  When the display surface is fully removed, the original surface of the pot is substantially restored to its former appearance. Optionally, a protective plastic covering or overlaminant is attached to the print side of the covering material, so that when the printed cover is in its removed state, the printing will not be accidentally damaged by scratching. Some embodiments employ a nylon fabric cover material with promotional printing.
Patent CA-2248684-A1 (CA)
Inventor: FASEL NICOLAS JOSEPH
IPC: C12Q1/68
Filed: 1997-03-12
Abstract: The present invention relates to trypanosomatid histones in substantially isolat ed form for use as a protective antigen against trypanosomatic infection. These histones may be either isolated from the corresp onding parasite or be produced by means of recombinant DNA techniques. For the latter purpose the invention also provides genes encodin g histones and derivatives of the genes like other nucleic acids and gene products like peptides and proteins. The invention further provid es diagnostic tests, pharmaceutical compositions and vaccines comprising the usual excipients and/or adjuvants and at least one histo ne, a histone encoding gene or a derivative thereof.
Patent CA-2252577-A1 (CA)
Title: Atm lan emulation
Inventor: CASEY LIAM MAURICE
IPC: H04L12/56
Filed: 1997-02-26
Abstract: By using a LAN emulation in an ATM environment, end systems such as workstations etc. can connect to the ATM network while software applications interact as if they are attached to a traditional LAN. The invention is a simple technique for emulating a LAN on an ATM network. According to the invention, each end system is identified by hub and port identifiers which represent a hub and a port of the hub to which the end system is connected. By labelling each ATM cell, and proper label translation at hubs, a LAN can be emulated without using network servers which would introduce cumbersome extra procedures.
Patent CA-2253234-A1 (CA)
Title: Nucleic acid molecules coding for debranching enzymes from potato
Inventor: EMMERMANN MICHAEL
IPC: C12N9/44
Filed: 1997-05-06
Abstract: The description relates to nucleic acid molecules which code the potato debranching enzyme and transgenic plant cells and plants in which the synthesis of an amylopectin with modified properties occurs owing to the expression of a debranching enzyme from potatoes or the inhibition of such an endogenous debranching enzyme activity.
Patent CA-2255160-A1 (CA)
Inventor: DE LA POTERIE VALERIE
IPC: A61K8/00
Filed: 1998-12-18
Abstract: La présente invention se rapporte à une composition anhydre, notamment cosmétique, dermatologique, hygiénique ou pharmaceutique, pour le soin et/ou le maquillage de la peau, pouvant se présenter sous forme d'un produit coulé ou d'un gel comprenant au moins une matière colorante notamment pulvérulente et une dispersion de particules de polymère stabilisées en surface dans une phase grasse liquide. Selon la quantité de polymère, il est possible d'obtenir sur les lèvres ou la peau un film souple, ayant des propriétés de sans transfert remarquables, tout en étant d'un très grand confort.   L'invention se rapporte également à l'utilisation de cette dispersion dans une telle composition.
Patent CA-2260671-A1 (CA)
Title: Foam insulation board faced with a tough polymeric film or composite thereof
Inventor: LAUGHLIN WAYNE E
IPC: B32B5/18
Filed: 1999-02-05
Abstract: A method for continuously manufacturing an insulation board by facing a foam--forming composition with one or two facing sheets to form a singly or doubly faced composite, at least one sheet comprising either a tough polymeric layer or a laminate of a tough polymeric layer with at least one other facing material, the tough polymeric layer of at least one sheet facing to the outside of the composite, and foaming and curing the faced foam-forming mixture to produce an insulation board having an exceptional hardness and puncture resistance.
Patent CA-2260950-A1 (CA)
Title: Recuperation de polymere
Inventor: ROWLAND MICHAEL E
IPC: B01D1/22
Filed: 1997-07-08
Abstract: L'invention concerne des procédés de dégagement des matières volatiles de solutions de polymère consistant, dans certains aspects, à dissoudre un polymère visqueux dans un solvent formant une solution de polymère-solvent, à introduire la solution de polymère-solvent dans un sécheur thermique, à chauffer ou à refroidir la solution de polymère-solvent dans le sécheur thermique formant un produit polymère dépourvu de solvent et un solvent séparé (pouvant comporter d'autres résidus), le solvent séparé avec d'autres résidus éventuels se vaporisant dans le sécheur thermique et formant une vapeur, à extraire la vapeur du sécheur thermique et à décharger le polymère produit du sécheur thermique.
Patent CA-2261116-A1 (CA)
Inventor: WIEMERS KARL-HEINZ
IPC: B23Q1/62
Filed: 1997-03-22
Abstract: The invention pertains to a machine tool system for machining symmetrical and asymmetrical workpieces. The proposed system consists of three basic modules: the bed (3), the magnetically operated clamping device (7) and a magnet holding ring (11). The bed (3) is equipped with clamping members (6) which are preferably designed as hybrid magnets, i.e. they act as combined electro- and permanent magnets. The magnetically operated unit consists of a base plate (8), the support ring (9) and the clamping plate (10). While in operation the entire clamping device (7) rests on the bed (3); when being displaced and positioned this clamping device (7) is held suspended by the magnet holding ring (11), using lifting magnets (13), while displacement and positioning are done by means of driving magnets
Patent CA-2263176-A1 (CA)
Title: Atactic propylene (co) polymers
Inventor: LANG HEINRICH
IPC: C08F210/06
Filed: 1999-03-01
Abstract: Atactic propylene (co)polymers may be produced in the presence of organometallic catalysts in the gas, liquid or slurry phase at -20°C to +200°C  and 1-50 bar pressure.     Organometallic compounds of transition metals for this purpose are compounds containing optionally tetrahydrogenated 2-indenyl as first ligand, of the formula (see fig. I) in which A denotes the benzo system or the tetrahydrocyclohexyl system and the further formula symbols have the meanings specified in the description.
Patent CA-2263554-A1 (CA)
Inventor: KALOTA DENNIS J
IPC: C10M173/02
Filed: 1997-08-29
Abstract: This invention relates to novel water soluble metal working fluid compositions, their use to work metal, a process for working metal using such compositions and the metal worked article of manufacture. More particularly, this invention relates to fluid compositions useful in cutting, grinding, shaping and other metal working operations which require a lubricant. The terms "first Group A" and "second Group B" are used herein to denote different groups and not to indicate any sequence of use or selection as any possible combination or sequence of use of a component(s) is envisioned without limit of any kind. The disclosed fluid compositions are also anticorrosive and environmentally more acceptable than current oil based fluids. There has now been discovered an essentially odorless, substantially non-oil misting, water-soluble metal working fluid comprising at least one component selected from a first Group A herein and optionally one or more components selected from a second Group B herein preferably with the balance of the composition being water and other (optional) minor ingredients. When a component is employed from Group A and a component is employed from Group B the action of the combination generally enhances performance of the resulting combination with contain moieties from both Group A and Group B.
Patent CA-2265858-A1 (CA)
Inventor: PRICK RAOUL GUILIELMUS BOUDEWI
IPC: D04H1/68
Filed: 1997-09-11
Abstract: Insulation material comprising a basic material which is built up of cells and a filler which is present in said cells. The filler is built up of separate fibres, which are bonded together by means of a foam-like bonding agent. Method for producing such an insulation material, wherein a filler is introduced into the open cells of the basic material. First a mixture of separate fibres and a foam-like bonding agent is prepared, and said mixture is introduced into the open cells of the basic material via a nozzle.
Patent CA-2267113-A1 (CA)
Title: Nose cone for small spin head in flash spinning system
Inventor: MARIN ROBERT ANTHONY
IPC: D01D5/11
Filed: 1997-10-30
Abstract: The present invention relates to a novel arrangement for attaching, by screw threads, one device to another wherein the one device has a greater thermal rate of expansion than the other and the devices are assembled at a temperature which is lower than that at which the two devices are regularly subjected. In particular, the novel arrangement maintains the security of the attachment where the differing thermal rates of expansion would normally cause the screw thread attachment to become loose.
Patent CA-2269107-A1 (CA)
Title: Clamping member for at least one support pin for belt conveyor components
Inventor: MARSETTI SERGIO
IPC: B65G21/20
Filed: 1999-04-26
Abstract: A clamping member (4) for at least one support pin (7, 7A) for components of belt conveyors (1), for example guide elements (2), comprising means (10-13) for removably-securing said pin (7, 7A) to a head (8, 8D, 8E); the means are formed in such a manner as to secure the pin (7, 7A) to the head (8) by the action of an elastic element (10) arranged to urge that portion of the pin (7, 7A) inserted into a seat (16, 17) provided in the head, against the walls of said seat to hence maintain the pin secured to the head, said means also being formed in such a manner as to enable the pin (7, 7A) to be released from the head (8) by exerting on said portion of the pin (7, 7A) an opposite action to that of the elastic element (10).
Patent CA-2271837-A1 (CA)
Title: 1,2,5,-trisubstituted 1,2,-dihydroindazol-3-ones having anti-asthmatic, anti-allergic, anti-inflammatory, immunomodulating and neuroprotective action, process for their preparation and their use as medicaments
Inventor: POPPE HILDEGARD
IPC: A61K9/08
Filed: 1999-05-11
Abstract: The invention relates to new 1,2,5-trisubstituted 1,2-dihydroindazol-3-ones, processes for their preparation and their pharmaceutical use.      The compounds have anti-asthmatic, anti-allergic, anti-inflammatory, immunomodulating and neuroprotective actions.
Patent CA-2273543-A1 (CA)
Title: Apparatus for determining battery pack temperature and identity
Inventor: TRINH DANH T
IPC: H01M10/42
Filed: 1999-06-03
Abstract: A battery monitor system that determines battery pack temperature and battery pack identification. The battery pack includes a battery pack circuit having a thermistor and an AC circuit component. The battery monitoring system determines the battery pack temperature by measuring the resistance of the thermistor when the battery pack circuit is in a steady-state condition, and determines the value of the AC component based on a changing or dynamic electrical condition of the battery pack circuit. In one embodiment, to determine battery pack identification, an identification capacitor is connected in circuit with the thermistor. One terminal of a comparator is switched to a low reference voltage potential once the identification capacitor has been charged, and the output of the comparator gives an indication of the discharge rate of the capacitor, and thus its identification. In an alternate embodiment, the battery monitor circuit determines the identity of the battery pack by determining whether a thermistor does or doesn't exist, and if so, whether an identification capacitor does or doesn't exist.
Patent CA-2275723-A1 (CA)
Title: Synchronisation de stations de base dans un systeme de telecommunications cellulaires
Inventor: SOEDERKVIST JAN ERIK
IPC: H04B7/26
Filed: 1997-12-18
Abstract: L'invention concerne un réseau cellulaire réglé de telle sorte que des créneaux temporels de transmissions provenant de stations de base dotées de la même fréquence de fonctionnement sont synchronisés. En outre, des stations de base adjacentes utilisant la même fréquence sont réglées de telle sorte qu'elles émettent à tout moment différents mots de synchronisation.
Patent CA-2276238-A1 (CA)
Inventor: BROMANN ALAIN MARC LUCIEN
IPC: F01D11/18
Filed: 1999-06-23
Abstract: The present invention relates to the high-pressure turbine stator ring of a turbo engine that is fastened to the stator by tightening means that limit leaks to a minimum. These means mainly comprise a tightening grip (40) that grips the curved section of a downstream leg (35V) of each spacer section (30) that is fastened to the turbine casing (1) of the stator by a curved downstream flange (23V) of each ring section (20). Application to the fastening of the high-pressure turbine stator ring of a turbo engine.
Patent CA-2276656-A1 (CA)
Title: Blocking time maintenance circuit for zvs converters
Inventor: WUNDERLICH RONNIE A
IPC: H02M3/337
Filed: 1999-06-23
Abstract: Discloses a blocking time maintenance circuit that is applied to a resonant-transition zero voltage switching (ZVS) power converter having saturable core reactors to induce a current in the primary of the transformer which enables ZVS. The circuit includes a peak detector for producing a signal having a magnitude proportional to an input voltage. A biasing mechanism, comprising a current source, is provided in order to reset the saturable core reactors in a controlled manner. A control mechanism is connected to the peak detector and the current source in order to generate a reset current, the magnitude of which is correlated to the input voltage. In this manner, the volt-time product of the saturable reactors is varied, thereby maintaining the blocking time relatively constant over a wide range of input voltages and ensuring that the output voltage does not fall out of regulation.
Patent CA-2277492-A1 (CA)
Title: Method for producing polyamides
Inventor: TAMURA KOZO
IPC: C08G69/28
Filed: 1999-07-16
Abstract: The invention relates to a method for producing polyamides, and to a method for producing primary polycondensates which are intermediates for polyamide production.      More precisely, the invention relates to a method for producing primary polycondensates, which comprises a step of polycondensing a dicarboxylic acid component having a terephthalic acid content of from 60 to 100 mol% and a diamine component in which the amount of 1,9-nonanediamine and/or 2-methyl-1,8-octanediamine falls between 60 and 100 mol%, in the presence of water of being from 15 to 35 % by weight, at a reaction temperature falling between 250°C and 280°C and under a reaction pressure (P) that satisfies the following formula (1):     P0 ~ P ~ 0.7P0      (1) where Po indicates the saturated vapor pressure of water at the reaction temperature, to form a primary polycondensate, followed by a step of taking the resulting primary polycondensate as formed in the previous step out of the reactor in an atmospheric environment while it is at a temperature within the same range as in the previous step and has a water content within the same range as in the previous step. The invention further relates to a method of polymerizing the primary polycondensate prepared previously into a polyamide having an increased molecular weight.