baber/WOPTO huggingface dataset:
Patent CA-2249840-C (CA)
Title: Method for conflict resolution in a multiple access system for communications networks
Inventor: CHUAH MOOI CHOO
IPC: H04L69/14
Filed: 1998-10-08
Granted: 2002-08-13
Abstract: In a method for conflict resolution among remote hosts in a wireless network where remotes make bandwidth requests to the base station via uplink frames partitioned into one or more reservation minislots, a collision occurs where two or more remotes have transmitted a request in the same minislot. Each remote is characterized by a stack level, and only remotes with a stack level equal to 0 are permitted to transmit access request packets. Newly active remotes are allowed to join in with those remotes already having stack level 0 during any particular conflict resolution period by setting their stack levels to 0 and entering the request state. If the stack level of a remote is 0, the remote randomly picks a minislot for transmission of an access request. If the outcome is SUCCESS, and the queue at the remote is empty, the remote transmits the current packet after receiving a transmit permit and exits the request state. If the queue is not empty, then, after receiving a permit, the current packet is transmitted with a piggybacked reservation request for transmission of the next packet in the queue, continuing until the queue is empty. If the outcome of the reservation request was not SUCCESS, the remote participates in a random draw to determine whether to increment its stack level by 1 or leave it at 0. If the stack level of any remote is not 0, then in one embodiment if the outcome of theprevious reservation request was COLLIDED, the remote increments its stack levelby 1, otherwise decrementing it by 1. In an alternate embodiment, if the outcome of all the reservation requests during the previous cycle was COLLIDED for greater than or equal to some threshold, the remote increments its stack level by 1, otherwise decrementing it by 1. The number of reservation minislots available in any particular uplink frame may be dynamically changed based on the percentage of idle minislots and the total uplink queue length.
Patent CA-2252263-C (CA)
Inventor: VANDE HAAR EVAN R
IPC: F16F7/104
Filed: 1998-10-30
Granted: 2004-01-13
Abstract: A tuned vibration absorber mounted to the enclosure of a machine.  The vibration absorber is suspended to absorb the vibration created by the dynamic system of the machine.  The vibration absorber includes a mass and a plurality of springs used to suspend the mass in a desired location.
Patent CA-2253612-C (CA)
Title: Powder formulation useful for seed treatment and foliar treatment of plants
Inventor: DAO-CONG DONG
IPC: A01N25/14
Filed: 1997-04-09
Granted: 2007-09-11
Abstract: water-dispersible powder formulations used in connection with seed treatment and foliar treatment of plants provide excellent dust and rub-off control. The powder formulations comprise an active ingredient, a wetting agent, a dispersant, an anticaking agent, and an adhesion ingredient selected from the group consisting of a sodium salt of a polyacrylic acid, a sodium salt of maleic acid/acrylic acid copolymer, polyvinyl pyrrolidone, an alkylated polyvinyl pynrolidone, and mixtures thereof. The wetting agent is present in an amount that is effective for enabling the powder formulation to be wettable by cold water.  The dispersant is present in an amount that is effective for enabling the powder formulation to be dispersible in cold water. The anticaking agent is present in an amount that is effective for enabling the powder formulation to be re-suspendable in water. The adhesion ingredient is present in an amount that is effective for enabling the powder formulation to adhere to a plant leaf or seed. The powder formulations are especially suitable for containment in water soluble and/or water-dispersible bags or pouches, such use tending to render the active ingredient safer to handle and therefore better for consumers and the environment.
Patent CA-2253635-C (CA)
Title: Use of aspirochlorine or derivatives thereof as immunosuppressive agents
Inventor: ISLAM KHALID
IPC: A61P29/00
Filed: 1997-04-23
Granted: 2006-01-03
Abstract: Use of a compound of formula (I) wherein R represents hydrogen or chlorine, for preparing an immunosuppressive medicament.
Patent CA-2262268-C (CA)
Inventor: MAYTOM MURRAY CRAIG
IPC: C07D487/04
Filed: 1999-02-19
Granted: 2003-07-29
Abstract: A class of cGMP PDE inhibitors, including sidenafil and pharmaceutically acceptable salts thereof, can be used to treat sexual dysfunction in male and female animals, especially humans, with a spinal cord injury. The invention can be used to treat sexual dysfunction in male animals that exhibit essentially no residual penile function.
Patent CA-2270353-C (CA)
Title: Improved process for preparing acetaldehyde from ethylene and oxygen
Inventor: RINNE BERND
IPC: B01D45/00
Filed: 1999-04-28
Granted: 2009-09-15
Abstract: The invention relates to a process for oxidizing a reaction gas in the presence of a catalyst solution, in which process a) the reaction gas is oxidized in a reactor in the presence of the catalyst solution, a reaction mixture being formed which comprises droplets of the catalyst solution, and which b) is passed into a first separator and in this droplets of the catalyst solution are removed from the reaction mixture, and in which process c) the remaining reaction mixture is passed from the first separator into a scrubbing apparatus and in this the oxidation product is removed from the reaction mixture, which comprises d) passing the reaction mixture from the first separator through a second separator which is downstream of the first separator and upstream of the scrubbing apparatus and, in the second separator, removing residual catalyst solution from the reaction mixture.
Patent CA-2271679-C (CA)
Inventor: AUGUSTINE SCOTT D
IPC: A61M1/00
Filed: 1997-11-12
Granted: 2004-06-08
Abstract: L'invention a trait à une protection de plaie génératrice de chaleur, commandée et n'entrant pas en contact avec la lésion, ainsi qu'à la technique afférente. Cette protection est pourvue d'une bague d'étanchéité périphérique revêtue d'une couche à laquelle est rattaché un générateur de chaleur. L'assemblage ainsi obtenu est fixé à la peau à l'aide d'un adhésif de manière que le générateur de chaleur demeure à proximité de la région lésée sans entrer en contact avec celle-ci. La couche et la bague d'étanchéité délimitent ensemble un volume de traitement proche de la plaie. La protection de plaie est pourvue d'une commande de chauffage active et programmable et la bague d'étanchéité est susceptible de procéder à un apport d'eau afin de réguler la teneur en humidité du volume de traitement. La chaleur active peut être dispensée par un filament électrique résistant de forme variable, ce qui assure une certaine souplesse en matière d'application de chaleur à des types de lésions diverses et de géométries différentes. Le transport de gaz chauffé vers la plaie constitue un autre type d'apport de chaleur active.
Patent CA-2280385-C (CA)
Inventor: RUTA JOSEPH
IPC: H03K17/13
Filed: 1999-08-16
Granted: 2007-05-22
Abstract: A control arrangement and method is provided for a power electronic system configured as a high-speed source-transfer switching systems (HSSTSS). The HSSTSS supplies an electrical load with alternating current from either a first source or a second source via respective first and second solid-state switches. The control arrangement avoids undesirable current flow between sources via a comparison of the voltages of the sources and current in the outgoing source, i.e. a polarity comparison to ensure that the current that will flow in the incoming source after transfer will be in opposition to the current flowing in the outgoing source before transfer. Thus, the transfer is delayed until the polarity comparison is satisfied. Additionally, the control arrangement minimizes undesirable transfer delays by establishing appropriate transfer conditions before issuing control signals to perform the transfer between sources.
Patent CA-2281245-C (CA)
Inventor: MIELONEN PEKKA
IPC: E05B29/06
Filed: 1999-08-31
Granted: 2005-06-14
Abstract: A cylinder lock and key combination comprises a lock body, a turnable lock cylinder located inside the lock body, and a set of locking discs located inside the lock cylinder.      Each locking disc has a peripheral notch and a key opening and is turnable in the lock body in a first direction by application of turning force to a counter surface bounding the key opening. Each locking disc has an opening position in which its peripheral notch is at the position of an axial slot in the lock cylinder, such that when all the locking discs are in their respective opening positions the peripheral notches form a uniform channel at the position of the axial slot. A locking bar has a locking position in which it prevents turning of the cylinder relative to the lock body and a releasing position in which it is received in the channel formed by the peripheral notches of the locking discs and releases the cylinder for turning relative to the lock body. A key for the lock is insertable in the lock when the locking discs are at an initial position. The key has a set of combination surfaces corresponding respectively to the locking discs, for engaging a counter surface of each locking disc and applying turning force thereto when the key is inserted in the lock and is turned in the first direction, so that the locking discs are turned in the first direction to their respective opening positions. The key opening of at least one locking disc is bounded by at least two discrete counter surfaces, and the combination surface corresponding to that locking disc can be provided selectively with one of at least two combination values, whereby the combination surface engages a selected one of the discrete counter surfaces for applying turning force to the locking disc.
Patent CA-2282017-C (CA)
Inventor: NAYLOR ROGER LAWTON
IPC: F04D29/18
Filed: 1999-09-08
Granted: 2008-03-25
Abstract: A progressing cavity pump adapted for use in pumping liquid/solid mixtures with a solid content of about 50% has a single start helical rotor and a two start helical stator bore. The ratio of the eccentricity of the rotor to its minor diameter is about 1:4.9. The ratio of the eccentricity of the rotor to the stator lead is about 1:13.3. The pump may be truck mounted and used for pumping explosives.
Patent CA-2282295-C (CA)
Inventor: BARTOLETTI MARCELLA MARGHERITA
IPC: C11D1/14
Filed: 1998-03-02
Granted: 2008-01-08
Abstract: A slow-release lavatory cleansing block comprising: a) a bleaching agent or precursor therefor, b) an oily liquid perfume, and c) a water-insoluble, gelling polymer derived from one or more ethylenically unsaturated carboxyl group-containing monomers.
Patent CA-2289269-C (CA)
Inventor: PETERSON RANDALL D
IPC: E21C41/16
Filed: 1998-05-01
Granted: 2006-08-01
Abstract: Slurryable ore where the overburden (50) is unstable and subject to collapse is mined from substantially parallel elongated main trenches (60) connected by a perpendicular trench (66) at the bottom of the mineral seam. A plurality of softwall mining devices (20) supported by face equipment (22) is placed in the perpendicular trench (66). The devices slurry the mineral material and move into the mineral seam (56) as the overburden sloughs behind the mining devices. The subsided overburden (54) is supplemented as necessary with injected material. Slurried mineral flows to the parallel trenches (60) for removal to the surface. After the softwall devices have advanced the length of the parallel trenches (60), the devices are withdrawn and placed in additionally developed trenches elsewhere in the ore reserve.
Patent CA-2292700-C (CA)
Title: Method of and device for optical fibre grating fabrication
Inventor: ROSSOTTO ORIANA
IPC: G02B/
Filed: 1999-12-20
Granted: 2002-11-19
Abstract: An optical fibre is sequentially submitted to a first and a second exposure to the grating writing radiation. The first exposure is performed by positioning the fibre in proximity of a phase mask, so as to expose the same fibre to a radiation of which the intensity is spatially modulated by the interference fringes generated by the phase mask itself. The second exposure is performed with the fibre spaced apart from the phase mask in the propagation direction of the writing radiation by a sufficient distance in order the radiation incident on the fibre is substantially defined by the first diffraction orders generated by the phase mask in a situation in which there is basically no reciprocal interference among said first orders.
Patent CA-2294264-C (CA)
Title: Faecal collector
Inventor: PALUMBO GIANFRANCO
IPC: A61F13/15
Filed: 1998-06-26
Granted: 2004-03-23
Abstract: The present invention relates to a faecal management device (10) with an increased level of comfort. The faecal management device (10) comprises a bag (11) having an aperture (21), and an anatomically-shape d flange (12), which surrounds the aperture (21). The flange (12) provides for adhesive attachment to the perianal area of the wearer. In particular, the bag (11) comprises a wall material having an inner surface (15) and an outer surface (30), with the outer surface (30) being provided with a hydrophobic fibrous layer, preferably a nonwoven layer. In another aspect of the present invention, the faecal management device (10) is used in combination with a disposable diaper.
Patent CA-2296087-C (CA)
Title: Compositions de detoxication de fuminosines et procedes prevus a cet effet
Inventor: BOWEN BENJAMIN A
IPC: C12N15/55
Filed: 1998-07-07
Granted: 2003-05-06
Abstract: L'invention a pour objet des procédés d'identification d'organismes capables de décomposer les fumonisines. Les fumonisines peuvent être incorporées dans un milieu de culture pour opérer la sélection d'organismes qui leur sont résistants et/ou qui sont capables de croître sur elles comme unique source de carbone. Selon ce procédé, plusieurs organismes ont été identifiés. On peut utiliser ces organismes pour isoler l'enzyme et le gène conférant la résistance aux fumonisines. Le gène peut être cloné puis inséré dans un vecteur d'expression approprié, de sorte que la protéine puisse être caractérisée. En outre, on peut utiliser l'ADN codant pour les enzymes décomposant les fumonisines pour transformer les cellules végétales qui, en règle générale, sont vulnérables au Fusarium ou à d'autres infections fongiques génératrices de toxines. Les végétaux peuvent être régénérés à partir de cellules végétales transformées. De cette manière, on peut obtenir une plante transgénique capable de décomposer les fumonisines et de produire les enzymes de décomposition. L'invention porte également sur des procédés de détoxication utilisés avec des céréales, des cultures vivrières et des fourrages, dans le traitement et l'ensilage des céréales, ainsi que sur le traitement des microbes du rumen.
Patent CA-2296554-C (CA)
Title: Structural board of straw
Inventor: BACH LARS
IPC: B27N1/00
Filed: 1998-07-17
Granted: 2007-01-09
Abstract: A structural panel, board, or beam and method of making same, with straw that is oriented is provided. The straw is preferably oriented such that strands are parallel oriented in one or more directions.  The straw strands are chopped, split, and a binder such as MDI is added.
Patent CA-2307552-C (CA)
Title: Substituted pyridine compounds as anti-inflammatory agents
Inventor: SCHLACHTER STEPHEN T
IPC: C07D213/73
Filed: 1998-11-04
Granted: 2004-06-08
Abstract: Selected substituted pyridine compounds of formula (I) or a pharmaceutically acceptable salt thereof, wherein a. o. X is O, S, S(O), S(O)2 or NR2; Y is -C(O)-NR3R4 or-NR4-C(O)-R3; R1 is a cycloalkyl, ary l, heterocyclyl or heteroaryl radical which is optionally substituted by 1-4 radicals of alkyl, halo, haloalkyl, cyano, azido, nitro, amidino, R18-Z18- or R18-Z18-alkyl; provided that the total number of aryl, heteroaryl, cycloalkyl and heterocyclyl radicals in R1 is 1- 3; and provided when Y is -NR4-C(O)-R3 and X is O or S, R1 is other than a 2-pyrimidinyl radical; R2 is a hydrogen or alkyl radical; R3 is an aryl or heteroaryl radical which is optionally substituted by 1-5 radicals of alkyl, halo, haloalkyl, cyano, azido, nitro, amidino, R19 - Z19- or R19-Z19-alkyl; provided that the total number of aryl and heteroaryl radicals in R3 is 1-3; and provided when Y is -C(O)- NR3R4, R 3 is other than a phenyl or naphthyl having an amino, nitro, cyano, carboxy or alkoxycarbonyl, are effective for prophylaxis and treatment of diseases, such as TNF-.alpha., IL-1.beta., IL-6 and/or IL-8 mediated diseases, and other maladies, such as pain and diabetes. The invention encompasses novel compounds, analogs, prodrugs and pharmaceutically acceptable salts thereof, pharmaceutical compositions and methods for prophylaxis and treatment of diseases and other maladies or conditions involving inflammation, pain, diabetes, cancer and th e like. The subject invention also relates to processes for making such compounds as well as to intermediates useful in such processes.< /SDOAB>
Patent CA-2308399-C (CA)
Title: Improved drive system for shrimp peeling apparatus
Inventor: SIRGO SCOTT J
IPC: A22C29/02
Filed: 1999-08-24
Granted: 2008-01-29
Abstract: An improved drive system for a shrimp peeling apparatus (10) includes a support frame (11) with a first (25) and a second (26) plurality of rollers mounted thereon. One of the plurality of rollers have rollers (25) that are of a larger diameter than the other rollers (26). The drive mechanism includes a computer controlled motor (61) that engages a cylindrically-shaped shaft (31) of each roller and a drive mechanism that engages the cylindrically-shaped end portion. The motor drive (61) can be a computer controlled vector motor that can vary the rotation angular movement of each roller during each stroke. This enables variations in angular rotation and rotation speed depending upon the type and grade of shrimp. This configuration also enables each roller to constantly "advance" by changing the degree of angular rotation of each roller at each stroke, gradually presenting a different wear surface (37) to the shrimp and prolonging roller life.
Patent CA-2308617-C (CA)
Inventor: MCCUEN KURT L
IPC: B63B35/38
Filed: 2000-05-16
Granted: 2003-12-02
Abstract: A modular floating dock composed of polyethylene docking sections each having recesses along the edges thereof and being held together by connecting members which fit into the recesses in the respective sections. Each of the sockets has a vertically oriented tapered portion with a top overhang and the connecting members consist of a body having two flanges which are complimentary in shape to and receivable in the recesses of adjacent docking sections. The top portion of each connecting member contains a threaded bore which are adapted to co-operate with holes in the docking sections to receive securing means such as a bolt.
Patent CA-2308794-C (CA)
Inventor: GARCIA C ISAAC
IPC: C21D6/02
Filed: 1998-11-16
Granted: 2008-02-19
Abstract: The invention relates to free-machining steels which do not rely on lead as a means of enhancing machinability. Instead, the steels of the invention employ concentrations of tin at ferrite grain boundaries to replicate a role of lead, which the inventors have discovered, in enhancing machinability. This role is to cause an embrittlement at the localized cutting zone temperatures by changing the fracture mode from transgranular to intergranular at those temperatures. The invention's use of concentrations of tin at ferrite grain boundaries of the steel permits the machinability-enhancing effect to be obtained while employing bulk tin contents below levels at which hot tearing becomes problematic. The invention improves over lead-bearing, free-machining steels in that the machinability-enhancing embrittlement produced by concentrating tin at ferrite grain boundaries is both controllable and reversible. The invention also relates to methods of producing the described tin-bearing, free-machining steels and the products of those processes.
Patent CA-2311823-C (CA)
Title: Tandem electrode welder and method of welding with two electrodes
Inventor: PETERS STEVEN R
IPC: B23K9/09
Filed: 2000-06-15
Granted: 2004-01-06
Abstract: An electric arc welding apparatus comprising at least a first consumable electrode and a second consumable electrode movable in unison along a welding path between the edges of two adjacent, mutually grounded plates, a first power supply for passing a first welding current at a first low frequency between the first electrode and the two plates, a second power supply for passing a second welding current at a second low frequency between the second electrode and the two plates, where each of the power supplies includes a three phase voltage input operated at line frequency, a rectifier to convert the input voltage to a DC voltage link and a high frequency switching type inverter converting the DC voltage link to a high frequency AC current, an output rectifier circuit to provide a positive voltage terminal and a negative voltage terminal, and an output switching network operated at a given low frequency for directing a pulsating welding current at the given low frequency from the two terminals across one of the electrodes and the plates, and a circuit for independently adjusting the given low frequency so the value of the first low frequency of the first power supply is different from the second low frequency of the second power supply.
Patent CA-2315826-C (CA)
Inventor: JOSEY JOHN A
IPC: A61P17/02
Filed: 1998-12-18
Granted: 2004-09-14
Abstract: L'invention concerne des inhibiteurs de métalloprotéase de la formule (I) ou un sel pharmaceutiquement acceptable desdits inhibiteurs, qui conviennent pour des procédés prophylactiques ou de traitement d'une inflammation, de la dégénération tissulaire, du cancer, de la fibrose et de maladies associées. L'invention concerne en outre de nouveaux composés, analogues, promédicaments et sels pharmaceutiquement acceptables desdits composés, des compositions pharmaceutiques et des procédés prophylactiques ou de traitement d'une inflammation, de la dégénération tissulaire et de maladies associées. L'invention concerne enfin des procédés de production desdits composés ainsi que des intermédiaires s'utilisant efficacement dans lesdits procédés.
Patent CA-2320003-C (CA)
Title: Control apparatus for hybrid vehicles
Inventor: KURODA SHIGETAKA
IPC: B60L50/16
Filed: 2000-09-20
Granted: 2006-03-21
Abstract: A control apparatus for a hybrid vehicle comprising an engine for outputting a drive force of the vehicle, a motor for generating an auxiliary driving force for assisting the output of the engine and a battery for supplying electric power to the motor at the time of supplying electric power to the motor and for storing regenerative energy obtained by regenerative operation of the motor during deceleration of the vehicle. An assist amount determination device determines whether it is necessary for the motor to assist the engine. An assist control device assists the output of the engine by the motor based on the assist amount determined by the assist amount determination device.