baber/WOPTO huggingface dataset:
Patent CA-2197848-A1 (CA)
Inventor: RAZAVI ABBAS
IPC: C08F4/642
Filed: 1997-02-18
Abstract: The present invention relates to the production of high density polyethylene homopolymers or copolymers having a broad and monomodal molecular weight distribution wherein the polymerization process is conducted in the presence of supported metallocene-alumoxane catalysts wherein the metallocene is bridged, comprises at least a hydrogenated indenyl or fluorenyl and is isolated on its support under the form of all its conformers.
Patent CA-2199517-A1 (CA)
Title: Installation for biological water treatment for the production of drinkable water
Inventor: COTE PIERRE
IPC: C02F3/12
Filed: 1996-07-25
Abstract: This invention relates to a plant for the biological treatment of water to produce drinking water, characterized in that it comprises at least one biological reactor (7) provided with injection means (9) for injecting oxygenated gas, at least one separation membrane (11 for microfiltration or ultrafiltration immersed in said reactor (7), and addition means (10) for adding to said reactor (7) at least one pulverulent material in suspension serving as a support for a biomass, said pulverulent material possibly being a reactive powder which also allows fixation of the substrate required by said biomass.
Patent CA-2201143-A1 (CA)
Title: Wall retention system
Inventor: EQUILBEC MICHEL
IPC: E02D29/02
Filed: 1996-07-23
Abstract: A wall retention system for abutting against and retaining a mass of earth, comprising in combination: (a) a set of flat facing slabs, each facing slab having an outer flat surface and an inner, reinforced surface. The facing slabs are edgewisely interlocked to form a single continuous wall structure.  Foundation slabs abut on the ground, and support the lower portions of the facing slabs wherein the facing slabs are supported in generally upright condition. A number of elongated brace bars are provided, integrally carried at their inner ends by the facing slabs reinforced surface and transversely projecting therefrom at vertically spaced intervals. These tension members embeddingly anchor into the mass of earth to be retained. Hence, large horizontal loadings from the mass of earth can be sustained by the wall retention system, without compromising the angularity of the facing slabs relative to ground level.
Patent CA-2203615-A1 (CA)
Title: Tool for removing debris from a hearing aid
Inventor: RADEMACHER STEVEN T
IPC: H04R25/00
Filed: 1997-04-24
Abstract: A hand held tool removes cerumen and other debris through an existing aperture in a hearing aid by evacuating a tip placed in or over the aperture.  In one embodiment, the tip is evacuated when a spring-loaded piston in a cylinder coupled to the tip is released to move quickly away from the aperture.
Patent CA-2204723-A1 (CA)
Title: Method for producing starch esters, starch esters, and starch ester compositions
Inventor: UTSUE ISAMU
IPC: B01J31/02
Filed: 1995-10-30
Abstract: The method for producing starch esters using vinyl ester as the esterifying agent; The present invention is characterized in that a vinyl ester where the ester residue has from 2 to 18 carbon atoms is used as the esterifying agent and this is reacted with a starch in a non-aqueous organic solvent in presence of an esterification catalyst. This starch ester composition has a high degree of substitution, high molecular weight, high water proof and biodegradability.  This starch ester composition may be shaped into the moldings having much higher mechanical strength and better physical properties.
Patent CA-2205819-A1 (CA)
Inventor: THRASH JOSEPH L
IPC: H05B3/34
Filed: 1997-05-22
Abstract: An electrical safety circuit for discontinuing the operating power to an electrical device when overheat conditions are present.
Patent CA-2206600-A1 (CA)
Inventor: PALSSON BERNHARD O
IPC: C12N15/87
Filed: 1995-12-06
Abstract: Cette invention concerne des procédés, des compositions et un appareil visant à améliorer l'efficacité de transfection de cellules cibles par des particules, et notamment par des particules rétrovirales, par rapport à l'efficacité des procédés actuels. Le procédé de transfection consiste à placer les particules sur un support de croissance cellulaire et à mettre les cellules cibles en contact avec ledit support de croissance cellulaire contenant les particules.
Patent CA-2208794-A1 (CA)
Inventor: WOOD MICHAEL
IPC: C12Q1/68
Filed: 1995-12-22
Abstract: L'invention concerne des procédés et des compositions servant à détecter des séquences d'acide nucléique. On utilise, en particulier, des paires de sondes, la paire définissant une séquence sensiblement contiguë sur un acide nucléique cible. Chacune des paires possède une chaîne latérale constituant une souche des deux chaînes latérales qui réalise une liaison non covalente et est capable de créer une réticulation sous l'effet d'une activation, quand les sondes et l'échantillon d'acide nucléique présentent un appariement de bases. La réticulation des souches est inhibée quand elles ne possèdent pas de liaison avec un ADN complémentaire. Chacun des acides nucléiques est présent initialement en tant qu'acide nucléique monocaténaire permettant l'appariement des bases, de sorte que les sondes se fixent à l'acide nucléique cible homologue. On active le mélange de détection afin de produire une réticulation, on réalise la fusion de l'acide nucléique bicaténaire et on répète le processus d'appariement des bases, d'activation et de fusion pendant un nombre de cycles suffisant afin d'obtenir une quantité détectable de sondes réticulées. Afin d'inhiber une réticulation d'arrière-plan, les chaînes latérales peuvent déclencher la formation de duplex, où une partie de la chaîne latérale se fixe à une partie différente de la chaîne latérale ou à la partie de la sonde homologue de la cible. L'invention concerne également des kits comprenant des réactifs, ainsi que des dispositifs automatiques, afin de mettre ce procédé en application.
Patent CA-2209429-A1 (CA)
Inventor: TEICH MICHAEL
IPC: B60H3/06
Filed: 1997-07-04
Abstract: A ventilating system for a vehicle cab includes a blower which draws fresh air from the exterior of the cab into the interior of the cab. A filter housing is inserted generally transverse to the direction of air flow through a service opening in the ventilating system into the channel through which the fresh air flows. The filter housing encloses a fresh air filter. The blower also draws recirculating air from the interior of the cab through a recirculating air intake opening and blows it back through a recirculating air filter into the cab through an outlet opening. The recirculating air filter is also mounted in the filter housing. A filter insert includes a filter housing which contains the fresh air filter and the recirculating air filter, which are adjacent each other on either side of a separating wall, fresh air and recirculating air are separately filtered.
Patent CA-2213487-A1 (CA)
Inventor: ROBINSON BRAD C
IPC: B65F1/16
Filed: 1996-03-28
Abstract: Un ensemble conteneur (20), prévu pour le transport d'instruments médicaux neufs et pour le rejet ultérieur d'instruments médicaux usagés et autres déchets médicaux, comprend un corps (30) et un couvercle (22) ainsi qu'une structure de sécurité assurant l'inviolabilité du conteneur pendant le transport des dispositifs neufs. Cette structure de sécurité peut être un collier (140) assurant le raccordement du corps au couvercle, un emballage sous film rétractable recouvrant tout l'ensemble conteneur ou un élément de protection recouvrant l'ouverture du conteneur. Le couvercle peut comporter un volet incliné à fermeture automatique (26) et un élément à bascule (204) et éventuellement un mécanisme de protection (100) placé à l'intérieur de l'ensemble conteneur (20) qui empêche d'accéder au contenu médical usagé. Le couvercle peut être fixé de manière amovible sur le corps du conteneur pour transporter les instruments neufs et ensuite être fixé à demeure sur le corps du conteneur pour le stockage du contenu médical usagé.
Patent CA-2217193-A1 (CA)
Inventor: SCHUETTE RUEDIGER
IPC: B01J2/16
Filed: 1996-04-03
Abstract: L'invention a pour objet un procédé de production de granulés par granulation par pulvérisation en lit fluidisé, ainsi qu'un dispositif pour la mise en oeuvre de ce procédé. Par granulation par pulvérisation en lit fluidisé, des substances liquides de départ peuvent être transformées en granulés. En vue d'obtenir un débit de matière élevé, il est nécessaire d'installer un grand nombre de buses, lesquelles sont, par ailleurs, exposées à des risques d'obturation et d'incrustation. Les inconvénients des procédés connus sont évités, conformément à l'invention, grâce au fait qu'on dispose à chaque fois, au moins deux buses de pulvérisation (8) au moins partiellement orientées l'une vers l'autre, et qu'on règle les quantités pulvérisées de telle façon que leurs jets pulvérisés s'entrechoquent à l'intérieur du lit fluidisé, et qu'il n'existe sensiblement aucun passage de liquide sur une surface (4) limitant le lit fluidisé ou provenant du lit lui-même. Les jets pulvérisés provenant de deux buses de pulvérisation orientées l'une vers l'autre s'entrechoquent soit frontalement, soit en formant un angle inférieur à 180·, de préférence compris entre 150· à 180·. Le dispositif conforme à l'invention comprend un canal d'écoulement (1), avec des buses de pulvérisation (8) disposées latéralement, chaque ensemble de deux buses (8.4, 8.4') opposées exactement l'une à l'autre ou décalées étant orienté de telle façon que les jets de pulvérisation s'entrechoquent à l'intérieur du lit fluidisé.
Patent CA-2218758-A1 (CA)
Title: Handrails for moving walkways
Inventor: MORI JUNICHIRO
IPC: B66B23/02
Filed: 1997-10-20
Abstract: To provide handrails for moving walkways in which the effect of prevention of charging due to friction with the guide rail is great and the running smoothness is good.         In the handrail for moving walkways of this invention, surface canvas 5, which is woven by positioning conductive yarn or a string-shaped body as the warp or weft at specified spacing, and multiple sheets of polyester canvas 6 are laminated sandwiching strength maintenance members 7.    Then core 4 is formed by press-fitting these as one using adhesive rubber and, at the same time, moulding them into a C-shaped cross-section.  Cosmetic rubber layer 11 is provided incorporated over this.  As the conductive yarn or string-shaped body, conductive yarn 10, in which carbon fibre 9 is wound spirally round the outer periphery of polyester yarn 8, or conducting string 12, which is conductive polyamido resin, into which carbon powder is blended, moulded into string shape, are used.
Patent CA-2219260-A1 (CA)
Inventor: BABIN DENIS L
IPC: B29C45/27
Filed: 1997-10-23
Abstract: Injection molding apparatus for multi-layer molding two materials with different injection temperatures having an insulative air space extending between front and rear heated melt distribution manifolds. Heated nozzles extending from the front manifold each have a central melt channel and one or more annular melt channels extending around it. Melt transfer bushings each having a central melt bore extend across the air space to convey melt from the rear manifold to one of the melt channels in each heated nozzle. In one embodiment, each melt transfer bushing has a head portion which provides a spacer between the two- manifolds, and an elongated stem portion which extends through a bore through the front manifold to one of the heated nozzles. An air space around the stem portion provides thermal separation between the melt from the rear manifold and the front manifold which is at a higher temperature.
Patent CA-2219854-A1 (CA)
Title: End-of-service indicator for a respirator cartridge
Inventor: ST-PIERRE MARCO
IPC: G01N21/77
Filed: 1997-11-21
Abstract: An end-of service indicator for use with a respirator cartridge, the end-of service indicator hvaing an optical fiber having two opposite extremities, one of the extremities being connected to a light source, the other of the extremities being connected to a detector which measures the intensity of light transmitted by the fiber. An alarm is connected to the detector and is triggered when the intensity of light measured by the detector is below a predetermined level. An important aspect of the end-of service indicator is that at least a portion of the optical fiber is porous. In use, the end-of service indicator is placed inside a respirator cartridge having a gas/vapor sorbent, so that when the respirator cartridge is used in a toxic environment, the gas/vapor sorbent gradually becomes saturated, thereby lowering the transmission properties of the optical fiber.
Patent CA-2222662-A1 (CA)
Title: System and method of verifying cryptographic postage evidencing using a fixed key set
Inventor: PAULY STEVEN J
IPC: G07B17/00
Filed: 1997-11-26
Abstract: A method for controlling keys used in the verification of encoded information generated by a transaction evidencing device and printed on a document comprises the steps of generating a plurality of random verifier master keys to obtain a set of verifier master keys consisting of a fixed number of keys; generating at least one pointer by applying a psuedorandom algorithm to data unique to the transaction evidencing device ; calculating a plurality of verifier token keys to obtain a verifier token key set corresponding to the set of verifier master keys; encrypting the verifier token key set with a privacy key; and distributing the set verifier token keys and the privacy key to verifiers. The token keys are a function of the verifier master keys and a code valid for a limited time. The pointer algorithm is an appropriate symmetric key cryptographic algorithm and the code is function of a date dependent parameter. The master keys are distributed to postal and vendor data centers.
Patent CA-2222862-A1 (CA)
Title: Inter flush-toilet
Inventor: CHONG KAM HUI
IPC: E03D1/14
Filed: 1998-01-20
Abstract: The inter-flush toilet is a modified flush toilet. It resembles the ordinary flush toilet. The difference is the water tank; the inter-flush toilet has two strings connected from the turning knot to the water outlet stopper. When the stopper is in the closed position (Fig. 1), string A is theoretically in a shorter position than string B. If we turn the knot now, the arm will lift the stopper through string A and open the water outlet in the toilet. Now the stopper is in open position (Fig. 2), string B is theoretically shorter than string A. If we turn the knot now, the arm will lift the stopper through string B and close the water outlet.     Therefore, we can manually flush the toilet and manually stop flushing it.      If the toilet was plugged, the inter-flush toilet can prevent it from over-flowing by manually stopping the water outlet in the toilet.  It also can save water by manually stop flushing the toilet any further if we see the toilet had been totally flushed out.   Flush toilet should be able to stop flushing whenever we need to. Sometimes, the toilet is plugged, we wish to stop flushing manually to prevent the water from overflowing. But the traditional flush toilet wouldn't do it.      By adding the second string to the arm and stopper, we can manually stop flushing it just by turning the knot again.
Patent CA-2223828-A1 (CA)
Title: New cryptophycins
Inventor: PATTERSON GREGORY M L
IPC: C07D413/06
Filed: 1996-06-07
Abstract: The present invention provides novel cryptophycin compounds having structure (I). The present invention also provides methods for producing novel cryptophycins from the Nostoc sp. of blue-green algae (cyanobacteria). Pharmaceutical compositions comprising novel cryptophycins are also provided by the present invention, as are methods for using novel cryptophycins to inhibit the proliferation of hyperproliferative cells. The present invention further provides methods for using novel cryptophycins to inhibit the proliferation of hyperproliferative cells with drug resistant phenotypes, and to treat pathological conditions, such as neoplasia.
Patent CA-2225851-A1 (CA)
Title: Recumbent styled self propelled water vessel
Inventor: COPELAND STEPHEN
IPC: B63B35/71
Filed: 1998-03-10
Abstract: A self propelled kayak type water craft is provided with a seating assembly providing tlae occupant's center of gravity to be approximate and consistent with the horizontal plane position of the water surface line with respect to said vessel; said water vessel being equipped with removal and telescopically adjustable parallel side floatation members to provide increased stability if desirable, as well as provide provisions foe ease of transportation; said self propelled vessel also being characterized by a steering mechanism and pivot point consistent with the vessels dorsal plane's view center of mass thus providing ease of maneuverability; said vessel being provided with a gear ratio to maximize the relationship between human power and speed;  as well said propulsion mechanism has provisions to ensure ideal ergonomic location of said propulsion mechanism and the occupant.
Patent CA-2227842-A1 (CA)
Inventor: BLANDING DOUGLAS
IPC: H02G7/12
Filed: 1998-01-22
Abstract: A device for maintaining separation of the cables in a 3-phase, electric distribution system. The spacer device includes three body members each having first and second, rod receiving, bored holes formed therein. In two of the body members, the first and second holes extend along respective linear axes at about a 30° angle to one another, while in the third body member the holes are disposed at about a 120° angle. Elongated rods are removably positioned within the bored holes, thereby serving to interconnect the body members. Each spacer device further includes a cable clamping member pivotally and slidably attached to each body member. The clamping members are movable between engaged and disengaged relation to the body members, thereby retaining or releasing, respectively, the electric cables.
Patent CA-2228275-A1 (CA)
Inventor: KRAUTER HEINRICH
IPC: B41J31/00
Filed: 1996-12-18
Abstract: The invention relates to a thermal transfer strip for high speed printing, which strip has a conventional carrier on which are applied in the following order: (I) a first thermal transferable layer containing waxes of a melting point of approximately between 70 and 110 ~C and approximately 1 to 22 % by weight of a polymer wax plasticiser of a glass transformation point Tg of from -30 to +70 ~C, and (ii) a second thermal transferable layer containing a coloring agent, a wax-compatible polymer binding agent and approximately 5 to 30 % by weight of wax and/or a wax-like substance, the thermal transferable layer (ii) having a melt enthalpy .DELTA.H of approximately 10 to 80J/g.
Patent CA-2228280-A1 (CA)
Inventor: PLESCHIUTSCHNIGG FRITZ-PETER
IPC: B21B1/46
Filed: 1996-07-19
Abstract: The invention pertains to a plant to produce hot-rolled steel strip from a band of continuous cast input stock in a sequence of process steps, characterized by a continuous casting plant with a continuous casting and rolling unit with a casting speed of 4-8 m/min and a solidification thickness of 90-125 mm, using an oscillating continuous casting die with concavity between cast level and die outlet and/or a casting guide with concavity and/or with centering and guide elements in the continuous casting stand in the region of their narrow sides for purposes of guiding and centering the slab. A cooling and insulating section is provided between continuous casting plant and soaking furnace for the input stock strip and a crossover furnace of about 45 m in length and about 5 to 20 m in width, downstream of the continuous casting plant and upstream of the blooming mill.
Patent CA-2230059-A1 (CA)
Title: Propargylethoxyamino nucleotides
Inventor: ROSENBLUM BARNETT B
IPC: C12Q1/68
Filed: 1997-08-13
Abstract: Propargylethoxyamino nucleosides are disclosed having structure (I), wherein R1 and R2 are -H, lower alkyl, or label; B is a 7-deazapurine, purine, or pyrimidine nucleoside base; W1 is -H or -OH; W2 is -OH or a moiety which renders the nucleoside incapable of forming a phosphodiester bond at the 3'-position; and W3 is -PO4, -P2O7, -P3O10, phosphate analog, or -OH.  Additionally, a primer extension method is provided employing the above propargylethoxyamino nucleosides.
Patent CA-2231039-A1 (CA)
Title: Internet closed user group
Inventor: KELLER-TUBERG STEFAN PAUL
IPC: H04L12/56
Filed: 1998-04-08
Abstract: In an Internet system, a plurality of servers, 8, are connected to gateways, 55, to which a plurality of subscribers, Subscriber 1 ... Subscriber n, are coupled. A closed user group (CUG) is designated by subscribers which access a specific server, and messages within a CUG are directed to the specific server by header information in messages transmitted by subscribers who are members of the CUG, the header information serving to identify the specific server which serves the CUG.
Patent CA-2234908-A1 (CA)
Title: Improvements in a fiber optic synchronous digital hierarchy telecommunication network provided with a protection system shared on the network
Inventor: COLTRO CLAUDIO
IPC: H04B10/275
Filed: 1998-05-12
Abstract: A fiber optic synchronous digital hierarchy telecommunication network provided with a protection system shared on the network is described, which comprises spans of pairs of optical fibers (Nx2F) having network elements (Nx2F-SDHNE) interposed therebetween, wherein the spares of pairs of optical fibers have a variable number N (N=1, 2, 3, ...) of pairs, and the network elements (Nx2F-SDHNE) feature variable interconnection capability between said spans, so that several spans having number N of pairs of optical fiber even different can be connected to at least some of said network elements. (Fig. 3).
Patent CA-2235137-A1 (CA)
Title: Improvements in or relating to an atm switch
Inventor: COPPOLA MARCELLO
IPC: H04L12/56
Filed: 1997-08-29
Abstract: An ATM routing switch (21) has a buffer circuit (35) for holding cells located on queues at output ports (30), the buffer having a first reserve buffer capacity (161, 162) for cells of a first type requiring integrity of cell transmission and a first designation for use in determining a permitted path through the network, a second reserve buffer capacity (163, 164) for cells of the first type having a second designation for use in determining a different permitted path in the network and a third reserve buffer capacity (150) for cells of a second type accepting some loss of cells in transmission, flow control circuitry operating to limit input of cells of either the first or second type if predetermined thresholds for the first, second or third buffer capacities are reached.
Patent CA-2235533-A1 (CA)
Title: Movable marking device
Inventor: SMRT THOMAS J
IPC: B05B15/06
Filed: 1998-04-22
Abstract: A movable marking device including a wheeled chassis on which a plurality of aerosol container discharging mechanisms may be selectively mounted in provided. Each of the aerosol container discharging mechanisms is adapted to allow for the remote discharge of an aerosol container filled with a marking composition. Through the selective mounting of the discharging mechanisms one or more marks of one or more colors may be selectively applied to a surface during a single pass. The discharging mechanisms may be also mounted on the chassis such that a mark may be applied on a generally vertical surface adjacent to the surface over which the marking device is traversing.
Patent CA-2235781-A1 (CA)
Title: Cassette for stacking banknote
Inventor: BUKHMAN SERGEY
IPC: B65H29/46
Filed: 1998-04-24
Abstract: A cassette for receiving and storing banknotes advantageously uses a movable guide in combination with a movable actuator which each move toward the other for stripping of a banknote received in the guide and adding the stripped banknote to a stack of banknotes.