baber/WOPTO huggingface dataset:
Patent CA-2234448-C (CA)
Title: Procede de reglage de forage d'une machine de forage et d'une perforatrice au rocher
Inventor: MAKI JORMA
IPC: B25D9/26
Filed: 1996-10-09
Granted: 2005-04-26
Abstract: L'invention se rapporte au réglage de la pression de percussion et d'une machine de forage. Selon ce procédé, la puissance de percussion d'une machine de forage se règle par le déplacement vers l'avant d'une tige (2) dans le sens longitudinal de la machine de forage lorsqu'une puissance de percussion plus faible doit être transférée du piston à percussion à la tige (2). La machine de forage comprend au moins deux groupes de pistons (4a, 4b) se déplaçant dans le sens axial de la machine de forage, les pistons étant raccordés de manière à agir sur la tige (2) à l'aide d'un milieu de pression agissant derrière les pistons en direction de l'extrémité avant de la machine de forage. La machine de forage comprend au moins deux groupes séparés de pistons (4a, 4b) dont le déplacement des uns par rapport aux autres est différent et où les canaux (7a, 7b) du milieu de pression se séparent l'un de l'autre pour aboutir aux espaces cylindriques des deux groupes de pistons.
Patent CA-2235865-C (CA)
Title: High torque pressure sleeve for easily drillable casing exit ports
Inventor: NISTOR RADU NICOLAE
IPC: E21B17/00
Filed: 1998-04-23
Granted: 2004-05-25
Abstract: An apparatus for providing a high torque pressure sleeve for easily drillable casing exit ports. A joint of tubular casing with a pre-formed window in the wall thereof has a tubular sleeve fixedly attached to the exterior of the tubular casing covering the window. The interior surface of the sleeve is sealed to the exterior of the tubular casing on opposite sides of the window. In use, the joint of the tubular casing is run down to the depth of interest in the earth wellbore and the window is oriented with respect to the formation of interest at the depth. The joint of tubular casing is then cemented in place, after which a whipstock is lowered into the wellbore, oriented and anchored therein. The assembly automatically fixes the axial and circumferential orientation of the whipstock within a surrounding casing joint and holds the assembly in place. A drilling assembly is lowered into the casing and a lateral bore is drilled off the whipstock through the window and the pressure sleeve and into the surrounding formation.
Patent CA-2243888-C (CA)
Title: Ds-o synchronization over a wireless atm link
Inventor: WIRTH BRIAN
IPC: H04W56/00
Filed: 1998-07-27
Granted: 2005-10-18
Abstract: A system and method for the transmission of synchronization information from a wireless asynchronous transfer mode (ATM) base station across a point to point or point to multipoint wireless link, to one or more network interface units (NIUs). Each of the NIUs is capable of supporting a combination of structured or unstructured T1 and/or E1 circuit emulation services. The technique involves locking the wireless modem downstream symbol clock to an externally provided frequency reference from the base station. The reference is an N integer multiple of 8kHz which is the lowest common denominator for both the T1 and E1 clocking rates.
Patent CA-2246100-C (CA)
Inventor: TIEBEN JAMES B
IPC: F04C15/00
Filed: 1998-08-27
Granted: 2001-07-31
Abstract: A hydraulic system includes a hydraulic fluid pump, a hydraulic cylinder, and a pressure accumulator. A hydraulic fluid valve is movable between a first position and a second position. In the first position, the valvedirects fluid from the pump outlet to the hydraulic cylinder and from the accumulator to the pump inlet. In the second position the valve directs fluid from the pump outlet to the accumulator and from the hydraulic cylinder to the pump inlet. In this way pressurized hydraulic fluid from the cylinder can be stored in the accumulator for reuse. The pump includes high pressure seals at both ends of the driven shaft in order to reduce or eliminate offset forces of the type that might increase friction and wear.
Patent CA-2247928-C (CA)
Inventor: HOOVER TODD R
IPC: H01C7/12
Filed: 1997-03-03
Granted: 2007-04-10
Abstract: A surge arrester module having an array of MOV's and other components includ es an insulative coating (16) for applying an axially compressive force to the stacked array. The component stack (20), while held in an axially compressed condition, receives the insulative casing that includes thermosetting resin that, when cured, has a coefficient of thermal expansion that is greater than that of the components of the stack. The coated stack is then cured at a temperature that exceeds the maximum expected temperature that will be experienced by the arrester components. Upon cooling, the components of the array are held in compression and adequate electrical contact with each other is maintained by the casing. Fiberglass strands (24, 28) are included in the casing for reinforcement and cantilever strength. A method of manufacturing the module is also disclosed.
Patent CA-2248772-C (CA)
Title: Novel peptides which inhibit complement activation
Inventor: SAHU ARVIND K
IPC: C07K7/64
Filed: 1997-03-11
Granted: 2007-06-12
Abstract: Peptides capable of inhibiting complement activation are provided. Methods of inhibiting complement activation and complement-mediated tissue injury using these peptides are also provided. In addition, a method of producing compositions capable of inhibiting complement activation using these peptides is provided, along with the peptide analogs and peptidomimetics produced by the method.
Patent CA-2251401-C (CA)
Title: Process for the preparation of formylimidazoles
Inventor: HEVELING JOSEF
IPC: C07D233/64
Filed: 1998-10-23
Granted: 2007-09-25
Abstract: The invention relates to a process for the catalytic conversion of halogenated hydroxymethylimidazoles to halogenated formylimidazoles. The catalysis takes place in the presence of a peroxide. Halogenated formylimidazoles are important intermediates for pharmaceutically active products.
Patent CA-2251784-C (CA)
Inventor: VON ZITZEWITZ FALK
IPC: G06F3/02
Filed: 1997-04-07
Granted: 2004-11-09
Abstract: 1. Equipment for recording a patient's state of health. 2.1 It is not easy to measure and record the subjective state of health of a patient, oven though reliable statements or recordings concerning the way is which the patient's health varies with time, particularly when the patient is on medication, are desirable for the doctor and for research purposes. 2.2 Equipment for assessing sad recording the subjective state of health of a patient is proposed, is which the patient himself records the variation is the effect of medication with time by pressing buttons on mobile equipment sad stores this data on a recording medium. This equipment (1) has buttons (2, 3, 4) by means of which the patfent can eater the time at which the medication was takes sad the time sad value of nay positive or negative effect. The variation in the effect with time is recorded sad can be output via a chip (8) and thus reproduced. 2.3 The equipment can be used both is therapy sad is pharmaceutical research. 3. Fig. 1
Patent CA-2254250-C (CA)
Inventor: VELAN GEORGE M
IPC: B21H7/14
Filed: 1998-11-18
Granted: 2003-01-21
Abstract: As formed from a predetermined length of carbon steel wire, such as AISI C 1062 steel wire or high-manganese carbon steel wire, in sequential forming, rolling, and austempering steps, a pin for axial, non-rotational penetration into a steel, concrete, or masonry substrate has a head, a tapered shank, a point having a tip, and a transition zone between the tapered shank and the head. The head has an outer diameter at least about 2.6 times greater than the initial diameter of the wire predetermined length. The smaller end of the tapered shank has a diameter about 0.6 times the initial diameter thereof. The larger end of the tapered shank has a diameter about 0.7 times the initial diameter thereof. The point is joinedunitarily to the smaller end of the tapered shank and conforms except at the tip, which is rounded, substantially to a tangent ogive, which is tangent to the tapered shank. The transition zone has a tapered portion with a smaller end joined unitarily to the larger end of the tapered shank and a with larger end joined unitarily to the head at a circumferential fillet. The larger end of the taperedportion of the transition zone has a diameter about 1.1 times greater than the initial diameter of the wire predetermined length. The axial length of the transition zone is less than about one half of the axial length of the tapered shank. The austempering step provides the pin with a surface hardness not greater than about Rockwell C 48 and with a core hardness in a range from about Rockwell C 48 to about Rockwell C 58.
Patent CA-2255913-C (CA)
Inventor: DUGAN LAURA
IPC: B82B1/00
Filed: 1997-05-26
Granted: 2007-07-31
Abstract: The invention relates to the use of carboxylated buckminsterfullerenes in the control or treatment of neurotoxic injury.
Patent CA-2256140-C (CA)
Title: A device for dressing grinding wheels
Inventor: SAKCRISKA GLENN
IPC: B24B53/04
Filed: 1998-12-16
Granted: 2003-09-16
Abstract: A device for dressing a grinding wheel for the sharpening an ice skate blade. The device uses a housing surrounding a grinding wheel and movable frame with a swing arm. A dressing tool is mounted in the dresser swing arm and the dresser swing arm is rotatable between a storage position and an operating position. The movable frame slides to allow positioning of the dressing tool into the grinding wheel. The movable frame has side shafts to slide the frame along the housing. Blocks having bearings hold the shafts in position. The bearings operate against the shafts to facilitate the movement of the movable frame. The shafts are spaced apart by yokes on the arm or a bar across the top of the dresser to prevent binding as the movable frame is slid between the position for dressing the wheel and the storage position. Adjustment of the shafts is also provided for by adjustment slots at the back of the shafts.
Patent CA-2258006-C (CA)
Title: Polymerisation catalyst and process
Inventor: HADDLETON DAVID MARK
IPC: C08F4/26
Filed: 1997-06-12
Granted: 2008-07-29
Abstract: A first aspect of the invention provides a catalyst for addition polymerisation of olefinically unsaturated monomers comprising: a) a first compound MY where M is a transition metal in a low valency state or a transition metal in a low valency state co-ordinated to at least one co-ordinating non-charged ligand, Y is a monovalent, divalent or polyvalent counterion; b) an initiator compound comprising a homolytically breakable bond with a halogen atom; and c) an organodiimine, where at least one of the nitrogens of the diimine is not part of an aromatic ring; a second aspect of the invention provides a catalyst for addition polymerisation of olefinically unsaturated monomers comprising: d) a first component of the Formula [ML]n+ A n- where M = a transition metal of low valency state, L = an organodiimine where at least one of the nitrogens of the diimine is not part of an aromatic ring, A = an anion, n = an integer of 1 to 3, m = an integer of 1 or 2; e) an initiator compound comprising a homolytically breakable bond with a halogen atom. Preferably, the organodiimine is a 1,4-diaza-1,3- butadiene, a pyridine carbaldelyde imine, an oxazolidone or a quinoline carbaldehyde. Processes for using the catalysts are also disclosed.
Patent CA-2261789-C (CA)
Title: Method and system for increasing fold to streamer length ratio
Inventor: RONNINGEN ROLF
IPC: G01V1/38
Filed: 1997-10-22
Granted: 2002-03-26
Abstract: A method and system are provided for use in marine seismic data surveys to increase fold and offset without increasing streamer length or drag on the streamer boat. Generally the method comprises the use of a second source boat positioned in the streamer path and firing the second source (S2) at a time before the recording of information from the first source (S1) is finished. By positioning the second source (S2) about one streamer length in front of the closest hydrophone (R1), the fold is increased by two for the same length streamer.
Patent CA-2262740-C (CA)
Inventor: MARTIN HANS GORAN EVALD
IPC: G01N21/35
Filed: 1997-08-20
Granted: 2007-02-20
Abstract: The invention relates to a gas sensor (A) which is adapted for evaluating the contents of a gas sample enclosed in a cavity (2) or a gas cell (1). The gas sensor has the form of a block in which the wall or wall-parts of a gas cell or cavity have highly light-reflective properties, designated minor surfaces (11A, 12A). The cavity (2) has an opening (2a) for incoming light rays which are reflected in the cavity a predetermined number of times such as to create an optical analysis path before being caused to pass through an opening (6) for outgoing light rays, such reflections being achieved with the aid of three opposing, concave light-reflecting wall-parts (11, 12, 13). A first of the light-reflecting wall-parts (11) has the shape of part of an ellipsoid. A second (12) and a third (13) of the light-reflecting wall parts have a common shape conforming to part of an ellipsoid. The focal points (11a, 11b) for the first light-reflecting wall-part (11) ar e disposed in or close to mirror surfaces (12A, 13A) for the second (12) and the third (13) wall-parts. A focal point (12a) for the second wall- part (12) and a focal point (13a) for the third wall-part (13) are located in or close to the minor surface (11a) of the first wall-part (11).< /SDOAB>
Patent CA-2265636-C (CA)
Inventor: MORAN RICHARD JEROME
IPC: H01H47/10
Filed: 1997-09-10
Granted: 2003-12-02
Abstract: Circuit électronique (125) et procédé correspondant permettant de commander la vitesse de fermeture d'un organe (120) de commutation électrique. Le circuit électronique (125) comprend un actionneur (120) et un circuit (125) de détection du courant qui détecte si une quantité optimale de courant circule à travers l'actionneur. Lorsque cette quantité optimale est détectée, une résistance (135) d'optimisation du courant est introduite sur le trajet du courant qui traverse l'actionneur, ce qui permet de limiter à la quantité optimale le courant qui circule à travers l'actionneur. De plus, il est ainsi possible de limiter la vitesse de fermeture de l'organe de commutation électrique et de réduire au maximum les rebondissements des contacts.
Patent CA-2266287-C (CA)
Title: Disposable diaper
Inventor: YOSHIOKA TOSHIYASU
IPC: A61F5/44
Filed: 1999-03-23
Granted: 2003-06-10
Abstract: A disposable diaper includes barrier cuffs 19 around wearer's legs. Each of the barrier cuffs longitudinally extends on an inner surface of the disposable diaper 1 and includes a supporting wall section 16 adapted to rise on the inner surface of the diaper and a sealing surface zone 20 which includes a first overhead section 17 extending inwards from the supporting wall section 16 and a second overhead section 18 extending outwards from the supporting wall section 16. A first elastic member extending along an inner edge of the sealing surface zone 20 in operative association with the first overhead section 17 has an elongation stress higher than that of a second elastic member extending along an outer edge of the sealing surface zone 20 in operative association with the second overhead section 18. The barrier cuffs 19 thus constructed provide a good fit around a wearer's legs to prevent body fluids from leaking.
Patent CA-2268495-C (CA)
Title: Method for determining computer network topologies
Inventor: DAWES NICHOLAS W
IPC: H04L12/56
Filed: 1999-04-09
Granted: 2008-11-18
Abstract: A method of determining computer network topologies that dramatically reduces the computational complexity and greatly increases the accuracy of connection determination. The method involves classifying ports as either up or down. A source address table is compiled for each port of each data-relay device and each port is classified as either up or down. Up ports connect to other data-relay devices which report source address tables while down ports do not. After the classification, each source address in each up port table is replaced by the source address of the data-relay devices containing the down port whose table contains that source address. The tables of pairs of up ports are compared by intersection and minimal intersection defines the most probable connection for each up port. A variety of methods are used to remove invalid source addresses and the addresses of devices that have moved during the collection of the source address tables.
Patent CA-2269208-C (CA)
Title: Optical diffuser plates
Inventor: LORENZ HANS
IPC: E06B9/24
Filed: 1997-09-25
Granted: 2006-11-14
Abstract: The invention relates to optical diffuser plates (1) made of transparent plastics such as polycarbonate or polymethacrylate. Several thin strips (2) made of plastic B are inserted into plates made of transpare nt plastic A with the proviso that A and B are incompatible and the strips (2) made of plastic B are subsequently withdrawn. The hollows tha t are formed in the plate (1) made of plastic A are used to deflect light.
Patent CA-2273107-C (CA)
Inventor: MOTOOKA KEN
IPC: A63B71/14
Filed: 1999-05-27
Granted: 2001-09-11
Abstract: A tip end portion of a baseball or softball glove is laced using a web lacing to lace a web attached between the thumb finger stall and the first finger stall, and a fingertip lacing to lace the part from the first finger stall to the little finger stall. A pair of top and bottom front portion side and back portion side apertures are provided close to each adjacent finger stall at the tip of the front and back portions from the first finger stall to the little anger stall. A fingertip lacing is sequentially horizontally passed through the upper ones of these apertures, and then sequentially horizontally through the lower apertures to lace the part from the first finger stall to the little finger stall.
Patent CA-2273235-C (CA)
Inventor: SUDBURY MICHAEL P
IPC: B09B1/00
Filed: 1998-05-27
Granted: 2002-02-26
Abstract: A method for providing a composite capping cover for maintaining the surface  of a sulphide bearing tailing and mine waste containing deposit moist thereb y substantially eliminating oxidation of the sulphidic particulate in the deposit and the formation of heavy metal salts. The moisture is provided by atmospheric precipitation. The composite capping cover comprises a fine particulate layer, a fine-granular particulate layer and a coarse-granular particulate layer, the particle sizes of the particles making up the individual, the layers having been selected such that the hydraulic conductivity of the layers increases with successive layers while the matric  suction value within the layers decreases.
Patent CA-2273748-C (CA)
Title: Thermoset volatile monomer molding compositions and method for molding
Inventor: WEBERG ROLF THOMAS
IPC: C08K3/00
Filed: 1999-06-07
Granted: 2005-02-08
Abstract: A molding composition including reactive high-volatility monomeric groups, such as acrylics, at least one primary thermal initiator and at least one secondary thermal initiator is described. Molding processs using molding compositions including reactive high-volatility monomeric groups are also described.
Patent CA-2274528-C (CA)
Inventor: JOONG DONALD
IPC: H04M3/533
Filed: 1997-12-09
Granted: 2009-10-06
Abstract: In a radio telecommunications network (10), a system and method of providing service differentiation for call forwarding based upon the type of call. The system provides network support that allows the forwarding of calls of different types to appropriate devices for each type of call, as identified by the call's service code. The system determines whether a call to a mobile station (19) is a data call, and if it is a data call, provides the network support for forwarding the call to a different number than voice calls. A Service Type parameter (23) is added to ANSI-41 signaling messages to inform various nodes in the network of the type of call. The network includes a home location register/service control point (HLR/SCP) (15) with a database of call forwarding (transfer) numbers for its served mobile stations.  The database records at least one transfer number for each type of service.  Service logic in the HLR/SCP (15) associates the type of call with the appropriate transfer number. In this manner, incoming data calls such as G3 Fax calls are forwarded to an alternate fax machine, a fax mailbox, or some other device (14) capable of storing the data rather than a voice mailbox (13). The system and method are applicable to forwarding any type of data service, and are not limited to ADS and G3 Fax calls.
Patent CA-2275282-C (CA)
Inventor: HUGHES PHILIP THOMAS
IPC: H04Q11/04
Filed: 1997-12-18
Granted: 2002-04-02
Abstract: A communications system (1) has a plurality of nodes (2). Each node (2) has a receiver (10) for receiving a signal transmitted by wireless transmitting means and a transmitter (11) for wireless transmission of a signal. Each node (2) further has means for determining if a signal received by said node (2) includes information for another node and causing a signal including said information to be transmitted by said transmitting means to another node if said signal includes information for another node. Each node (2) has a substantially unidirectional point-to-point wireless transmission link (3) to at least one other node. The communications system (1) has high spectral efficiency compared to a broadcast cellular system and allows high data transfer rates to be achieved.
Patent CA-2275660-C (CA)
Inventor: GROSS EDWIN M
IPC: F01M11/03
Filed: 1999-06-16
Granted: 2007-08-14
Abstract: A submergible motor having a universal motor base facilitates replacement of an internal filter while in the field. The submergible motor is designed for use in production wells and includes a generally tubular housing with a shaft lying generally along the axis of the tubular housing. The housing includes a mounting structure to which a universal motor base may be selectively attached and removed. Within the universal motor base is a filter assembly attached by threaded fasteners to permit easy removal of the filter for servicing or replacement.
Patent CA-2279902-C (CA)
Title: Method for using tropoelastin and for producing tropoelastin biomaterials
Inventor: BAROFSKY ANDREW D
IPC: A61F2/06
Filed: 1998-02-06
Granted: 2009-01-13
Abstract: It is a general object of the invention to provide a method of effecting repair or replacement or supporting a section of a body tissue using tropoelastin, preferably cross-linked tropoelastin and specifically to provide a tropoelastin biomaterial suitable for use as a stent, for example, a vascular stent, or as conduit replacement, as an artery, vein or a ureter replacement. The tropoelastin biomaterial itself can also be used as a stent or conduit covering or coating or lining.
Patent CA-2285275-C (CA)
Title: Materiau pour electrode carbonee de batterie secondaire non aqueuse
Inventor: ISHIKAWA MINORU
IPC: H01M4/133
Filed: 1998-04-03
Granted: 2003-12-16
Abstract: L'invention porte sur une électrode carbonée présentant des capacités accrues de dopage et dédopage de substances actives de cellules telles que le lithium et convenant à des batteries secondaires à solvant non aqueux. Lesdites électrodes sont faites d'un matériau carboné présentant une densité réelle d'au plus 1,46g/cm?3¿ mesurée par la méthode à substitution au butane, d'au plus 1,7g/cm?3¿ mesurée par la méthode à substitution à l'hélium, un rapport atomique H/C d'au plus 0,15 mesuré par analyse élémentaire, une densité surfacique spécifique de 50m?2¿/g mesurée par la méthode BET d'absorption d'azote, et une capacité d'absorption du CO¿2? d'au moins 10 ml/g. Ledit matériau peut être obtenu dans de bonnes conditions par carbonisation à 1000 - 1400 ·C d'un matériau organique fourni par les espèces bambou de la famille des graminées et particulièrement par l'espèce Pleioblastus ou Bambusa, sous pression réduite ou dans un flux de gaz inerte, pour créer une structure poreuse appropriée.