baber/WOPTO huggingface dataset:
Patent CA-2162792-C (CA)
Inventor: NACKERUD ALAN L
IPC: E21B10/32
Filed: 1995-11-14
Granted: 2002-01-01
Abstract: A method and apparatus for increasing the diameter of a well bore in a cavern well completion after a drill pipe has been removed from the well bore and a drill bit has been removed from the drill pipe in which a reaming tool is formed with one or more cutters of a length in excess of the radius of the previous well bore, the cutters being attached by a pin to a coupling at the lower end of the drill pipe, the cutters being in the form of flat cutter blades which are capable of moving  from  overlapping  relation  to  one  another  into diametrically opposed perpendicular relation to the rotational axis of the drill pipe and coupling when the drill pipe is rotated.  The rotating drill pipe can be raised or lowered to lengthen the enlarged well bore to form an increased surface area of pressurized formation which is open to communicate with the less pressurized interior of the well bore and thereby substantially increase production flow rates.
Patent CA-2165711-C (CA)
Title: Semiconductor light source having a spectrally broad, high power optical output
Inventor: LIOU KANG-YIH
IPC: H01S5/00
Filed: 1995-12-20
Granted: 1999-07-06
Abstract: A light source includes a light emitting diode and an optical fiber having a first end coupled to the output of the light emitting diode. A single or multiple transverse mode optical semiconductor amplifier has an input coupled to a second end of the optical fiber. The light source may be fabricated from discrete components or alternatively it may be fabricated as a monolithically integrated device.
Patent CA-2173616-C (CA)
Inventor: GRUBER PATRICK RICHARD
IPC: C08G63/08
Filed: 1994-10-04
Granted: 2006-08-29
Abstract: L'invention a pour objet un procédé pour la production continue de lactide sensiblement purifié et de polymères de lactide, à partir d'acide lactique ou d'un ester d'acide lactique. Ce procédé comprend les étapes consistant à former de l'acide polylactique brut, de préférence en présence d'un moyen formant catalyseur dans le cas de l'ester de l'acide lactique, à former un sous-produit de réaction de condensation et de l'acide polylactique, et à dépolymériser l'acide polylactique dans un réacteur de lactide pour former du lactide brut, et enfin à purifier le lactide brut dans un système de distillation. Un lactide purifié est ensuite polymérisé pour former des polymères de lactide.
Patent CA-2180914-C (CA)
Inventor: SHISHIDO HIROSHI
IPC: B01D27/02
Filed: 1996-07-10
Granted: 2001-04-10
Abstract: A method and apparatus for continuously finishing hot-rolling steel strips includes partially joining a rear end of a preceding steel strip and a leading end of a succeeding  steel  strip  after  the  strips  have  passed through a rough hot-rolling step.  The joint is flattened.          The joint is rolled with a first stand of a tandem rolling mill.   The mill is provided with a plurality of stands that includes a pair of work rolls and backup rolls and/or intermediate rolls, so that a compression stress acts at the unjointed section of the strips in the longitudinal direction  of  the  joint  while  tracking  the joint.          Shape-control-rolling is performed on the  joint with a second and succeeding stands so that a section of the steel  strip other than the  joint  is  subjected to the shape-control-rolling at all the stands.
Patent CA-2182835-C (CA)
Inventor: NAGASHIMA YASUYUKI
IPC: H04L27/38
Filed: 1996-08-07
Granted: 2000-10-03
Abstract: A  digital  radiocommunication  receiver  includes: demodulation means  for a  one-symbol unit  for detecting a received signal in a unit of one symbol and for outputting a received bit sequence 5; demodulation means involving maximum likelihood sequence estimation for outputting a received bit sequence  9  from a  received  signal  sequence  concerning  a plurality  of  symbols; sync  word  detecting  means  12  for determining the detection or nondetection of a sync word from the received bit sequence outputted from the demodulating means for a one-symbol unit, a timing of the bit sequence being made to coincide with a timing of the bit sequence outputted from the  demodulating  means  involving  the  maximum  likelihood sequence estimation; synchronization controlling means 13 for determining a timing of a received frame, and for controlling, as required, a transmission timing, using information on the sync word detection; and received information extracting means 18 for extracting received information from an output of the demodulating means involving the maximum likelihood sequence estimation.
Patent CA-2192256-C (CA)
Inventor: GRUNING BURGHARD
IPC: C09K23/52
Filed: 1996-12-06
Granted: 2003-12-02
Abstract: Copolymers derived from polyamino acids with at least 75% of the units present selected from the group consisting of structural units having the general formulas (I) and (II)     (I)                 (II) in which the structural elements A are identical or different trifunctional hydrocarbon radicals with 2 or 3 C atoms, wherein the copolymer contains at least three units of formula (I).
Patent CA-2193016-C (CA)
Inventor: JENNINGS TERRY D
IPC: G06F19/00
Filed: 1996-12-16
Granted: 2000-08-08
Abstract: A new type of message component (204, 205) enables message creators to specify, inside of a message (200), how the body components (202-203) of the message are to be presented to message recipients; multiple such components enable multiple presentations to be specified for a single message. Included in the message by the message creator as one or more message components (204, 205) of type "presentation", each presentation component specifies the order, durations, and any concurrency, of presentation of the message's body components. Each presentationcomponent is a script that, upon its invocation (300) by the message recipient, executes (302-318) on the recipient's message-presentation equipment (102, 107) and presents the message's body components to the message recipient in the orderand for the durations specified, and presents concurrently any body components -- typically ones expressed in different media -- that are specified to be presented concurrently.
Patent CA-2193766-C (CA)
Title: Application of sulfone, ketone and ester containing polyalkyl ether units to medical materials
Inventor: KUWAHARA HIROAKI
IPC: C08L67/02
Filed: 1996-12-23
Granted: 2006-03-14
Abstract: A novel polyalkyl ether/polyaryl ether sulfone or ketone copolymer and a specific polyether ester copolymer are useful for producing a medical material to be used to contact the blood; and methods for producing the medical material comprising said polyalkyl ether/polyaryl ether sulfone or ketone copolymer or a specific polyether ester copolymer.
Patent CA-2201445-C (CA)
Title: Hybrid, saturable reflector for mode-locking lasers
Inventor: SULLIVAN BRIAN THOMAS
IPC: H01S3/098
Filed: 1997-04-10
Granted: 2005-01-11
Abstract: A mode-locking device for a laser operating at a defined wavelength, has a substrate, transparent to the defined wavelength, with a front side for receiving incident radiation and a back side. An anti-reflection coating is formed on the front side to minimize reflection loss at the defined wavelength. A quantum well structure is arranged on the back side. A high reflectance structure is arranged behind the quantum well structure in such a way that an electric field peak in the incident radiation substantially coincides with said quantum well structure. This device offers a more reliable and less costly approach for the production of non-linear mirrors since the layers of the dielectric stack do not have to be formed by epitaxial deposition.
Patent CA-2203655-C (CA)
Title: Tumor necrosis factor-gamma
Inventor: YU GUO-LIANG
IPC: C07K16/24
Filed: 1994-11-07
Granted: 2010-03-23
Abstract: A human TNF-gamma polypeptide and DNA (RNA) encoding such polypeptide and a procedure for producing such polypeptide by recombinant techniques is disclosed. Also disclosed are methods for utilizing such polypeptide to inhibit cellular growth, for example in a tumor or cancer, for facilitating wound-healing, to provide resistance against infection, induce inflammatory activities, and stimulating the growth of certain cell types to treat diseases, for example restenosis. Also disclosed are diagnostic methods for detecting a mutation in the TNF-gamma nucleic acid sequence or an overexpression of the TNF-gamma polypeptide. Antagonists against such polypeptides and their use as a therapeutic to treat cachexia, septic shock, cerebral malaria, inflammation, arthritis and graft-rejection are also disclosed.
Patent CA-2207564-C (CA)
Title: Iron oxide dehydrogenation catalysts and process
Inventor: MILAM STANLEY NEMEC
IPC: C07C5/333
Filed: 1995-12-13
Granted: 2007-05-01
Abstract: Dehydrogenation catalysts are prepared by a predoping process comprising, mixing iron oxide materials with a predopant to form a blend of iron oxide and predopant and heating the blend to the predoping conditions and thereafter forming a catalyst. The catalysts so prepared are useful in the dehydrogenation of a composition having at least one carbon-carbon double bond. Such catalytic uses include the conversion of ethylbenzene to styrene.
Patent CA-2207727-C (CA)
Title: Process for producing epoxidized product of olefins
Inventor: GOTO FUMISATO
IPC: C07D301/12
Filed: 1997-06-13
Granted: 2006-10-17
Abstract: Disclosed is a process for producing an epoxidized product of olefins, which comprises oxidizing olefins in the presence of an oxidizing catalyst, by using an alcohol medium solution of hydrogen peroxide produced by catalytically reacting hydrogen with oxygen in an alcohol medium.      According to the present invention, an epoxidized product of olefins can be produced by using an alcohol medium solution of hydrogen peroxide in high selectivity without requiring an aqueous hydrogen peroxide solution of high concentration and producing a large amount of by-products.
Patent CA-2217171-C (CA)
Inventor: ORTIZ JOSE A
IPC: A61K31/445
Filed: 1997-02-28
Granted: 2001-09-11
Abstract: The process consists in reacting (-)-trans-N-(p-fluorophenyl)-3-[[3,4- (methylenedioxy)phenoxy]methyl]-piperidine acetate with 2-chloro- or 2-bromo - 4'-fluoroacetophenone, and the resulting compound can be isolated as a pharmaceutically acceptable addition salt by reaction with the corresponding  acid.
Patent CA-2219017-C (CA)
Inventor: GUENTHER HANS-ULRICH
IPC: H05K9/00
Filed: 1997-10-17
Granted: 2001-03-27
Abstract: A shielded module support structure 1 for printed circuit boards 2 which can be inserted on guide rails 7 and having electrical or electronic components is proposed comprising at least four module rails 4 for mounting the guide rails 7. The printed circuit boards 2 are assembled into plug-in modules 10, each having a front plate 9, wherein the front plates 9 are attached to a threaded-hole-strip using screws, the threaded-hole-strips seating in a groove 11, opening towards the front side of the module support structure 1, in the front module rail 4. In order to assure shielding of the module support structure 1 against interfering radio frequency fields, the front plates 9 are contacted with the module rails 4 using specially formed resilient contact bands 15 which can be snapped onto a seating surface 12 of the module rails 4. The resilient contact bands 15 have a plurality of break-outs 18 resiliently facing the front side of the module support structure 1 as well as a plurality of contact spikes 19 facing the seating surface 12. The resilient contact bands 15 preferentially consist essentially of flat sheet metal the upper edge 16 of which is bent for engagement into an upper engagement groove 13 and the lower edge 17 of which is bent for engagement into a lower engagement groove 14.
Patent CA-2219954-C (CA)
Title: Pump sprayer for viscous or solids laden liquids
Inventor: EVANS STEPHEN FRANCIS
IPC: B05B1/14
Filed: 1996-05-03
Granted: 2001-08-21
Abstract: A hand holdable spray delivery system (10) for dispensing a relatively viscous and/or solids laden liquid is provided. This spray delivery system (10) includes a container (30) adapted to house the liquid. A manually actuated pump device (20) is mounted on the container (30). The pump device (20) including an inlet passage (23), a pump chamber (28), and a discharge passage (27) having a distal end connected in liquid communication so that the liquid is pumped from within the container (30), through the inlet passage (23), into the pump chamber (28) and through the discharge passage (27) upon manual actuation of the pump device (20). A slotted spray nozzle (40) including a housing (55) having an inlet side (46) and an exit side (44) is also included.  The housing (55) having an internal recess (45) through the inlet side (46) that terminates in an elongated orifice (42) at the exit side (48). The internal recess (45) being attached in liquid communication to the distal end of the discharge passage (27) such that the liquid passing through the discharge passage (27) flows through the slotted spray nozzle (40) and converges toward the elongated orifice (42). The liquid is dispensed therefrom in a dispersed spray. The slotted spray nozzle (40) can be made of a rigid material or an elastomeric material. A fan shaped dispersed spray pattern is generated when the nozzle (40) is made using a rigid material, however, when an elastomeric material is utilized, the nozzle (40) is capable of ejecting particles larger than the smallest dimension of the elongated orifice (42), thereby substantially reducing the likelihood of clogging. Several versions of the spray delivery system (10) are illustrated, including a trigger operated sprayer and a reciprocating finger pump (20).
Patent CA-2223404-C (CA)
Inventor: HENDRICKSON ROBERT L
IPC: C07C309/00
Filed: 1995-06-06
Granted: 2001-01-16
Abstract: L'anhydrate de sel d'acide méthane-sulfonique et d'acide 7-([1.alpha., 5.alpha., 6$(a)]-6-amino-3-azabicyclo[3.1.0]hex-3-yl)6-fluoro-1-(2,4-difluorophényl)-1,4-dihydro-4-oxo-1,8-naphtyridine-3 carboxylique possède des propriétés de stabilité avantageuses dans une formulation comme agent antibactérien.
Patent CA-2225434-C (CA)
Title: Hydraulic pump control system
Inventor: KONISHI HIDEO
IPC: F04B49/06
Filed: 1997-12-22
Granted: 2004-04-27
Abstract: Disclosed is a hydraulic pump control system which can control the absorbing torque of a hydraulic pump with respect to the engine power in a well-balanced manner, and reduce a deviation of an actual revolution number from a target revolution number of the engine. A torque (Tp) of hydraulic pumps during operation is estimated from a pump pressure (Pp) and first and second line pressures (Pr1, Pr2). Based on the estimated torque (Tp), an output torque (Tr) of the hydraulic pumps is controlled so that an error (.DELTA.Ne) between a target revolution number (Nset) and an actual revolution number (Ns) of the engine becomes null. The controlling of the output torque (Tr) of the hydraulic pumps is learned by a fuzzy control system.
Patent CA-2225942-C (CA)
Inventor: REYNOLDS JON
IPC: H05H1/36
Filed: 1997-12-29
Granted: 2001-09-25
Abstract: A method and apparatus for controlling and maintaining a continuous flow of pilot arc current in a plasma cutting torch includes a pilot circuit, a current sensing circuit, and a control circuit.  The control circuit maintains a continuous flow of pilot current through the pilot circuit both before and after a cutting arc has been generated.  The control circuit further controls the magnitude of the pilot current in response to the sensing circuit indicating the absence or presence of the cutting arc.
Patent CA-2230199-C (CA)
Title: Pyridazin-3-one derivatives, their use as a herbicide, and intermediates for their production
Inventor: SANEMITSU YUZURU
IPC: C07D409/04
Filed: 1996-08-19
Granted: 2007-09-25
Abstract: The present invention is directed to novel pyridazin-3-one derivatives of formula (see formula I) wherein R1 is haloalkyl; R2 and R3 are the same or different and are hydroge n, alkyl, haloalkyl, or alkoxyalkyl; and Q is [Q-1], [Q-2], [Q-3], [Q-4] or [Q-5]. The compounds of the present invention are useful as active ingredients of herbicides. Also provided are their use and intermediates for their production.
Patent CA-2233183-C (CA)
Inventor: HOMMA MASAHIRO
IPC: B23K9/09
Filed: 1998-03-26
Granted: 2001-06-05
Abstract: The consumable electrode type AC pulse arc welding apparatus is so configured that the pulse width setting circuit 16 includes the pulse width setting device 16a for the hard wire, the pulse width setting device 16b for the soft wire and the switch SW2 for switching the pulse width setting device.   Further, the frequency setting device 20 includes the frequency setting device 20a for the hard wire, the frequency setting device 20b for the soft wire and the switch SW3 for switching the frequency setting device.  By switching the switch SW1 for switching a wire kind, within the pulse width setting devices and the frequency setting devices, the selections of the hard wire side and the soft wire side can be simultaneously switched, thereby a welding can be implemented with a suitable welding condition according to the wire kind.
Patent CA-2238753-C (CA)
Title: Method of improving efficiency of radio channel usage in overlapping coverage areas
Inventor: SEED WILLIAM ROBERT
IPC: H04Q7/20
Filed: 1996-11-29
Granted: 2002-02-05
Abstract: A method is described for transmitting a signal over a wireless communicatio ns channel, the communications channel being common to primary and secondary communications systems that have at least partially overlapping areas of coverage. The primary system has a low duty cycle and transmits random burst s having a characteristic first duration. The method involves transmitting bursts on the secondary system, which have a duration at least equal to thre e times the first duration and contain forward error correcting codes to permi t data contained therein to be recovered in the event of a collision with a burst on the primary system. The bursts on the secondary system have an intensity sufficiently below the intensity of the bursts on the primary syst em to avoid interference therewith.
Patent CA-2242015-C (CA)
Title: New chromene derivatives, the procedure for preparing them and the pharmaceutical compounds that contain them
Inventor: HAUTEFAYE PATRICK
IPC: C07D491/052
Filed: 1998-06-22
Granted: 2005-01-04
Abstract: Hexahydro-chromeno-Ä3,4-cÜ-pyrrole derivatives of formula (I), their enantiomers, diastereoisomers and salts are new. m = 0-3; n = 0-3; n+m = 2 or 3; p = 1-6; the junction between rings B and C is trans; X = CN or -CONR4R5; R4, R5 = H, 1-6C alkyl, 3-7C cycloalkyl or optionally substituted aryl; A = sigma bond or -NR-CO-, -CO-NR-, -NR-SO2-, or -SO2-NR-; R = H or 1-6C alkyl; R1, R2 = H or 1-6C alkyl; R3 = H or phenyl, naphthyl or heteroaryl (all optionally substituted by one or more halo, 1-6C alkyl or alkoxy, OH, CN, NH2, NO2, COOH, 1-6C perhaloalkyl, sulphonyl, acylamino, 1-6C alkylsulphonyl, or 1-6C alkyl sulphonylamino), aryl or heteroaryl (both substituted by A'-Cy), 2-indolinon-5-yl, or, when A is a sigma bond, aryloxy or arylthio; A' = sigma bond or 1-6C alkylene or alkenylene, (in which one C atom may be replaced by O or S), -NR-CO-, -CO-NR-, -NR-SO2-, or -SO2-NR-; Cy = aryl or heteroaryl (optionally substituted); provided that when n = 0, then m is other than 2, when n = 1, R1, R2 = H, A = sigma bond and p = 1, then R3 is not phenyl nor pyridyl, when n = 1, R1 & R2 = H, A = sigma bond, R3 is not H, when n = 1, R1 & R2 = H, A = -NH-CO-, then R3 is other than H, phenyl, naphthyl, thienyl, furyl, pyrrolyl, pyridyl, (all optionally substituted by one or more halo, trihalomethyl, alkoxy or OH).
Patent CA-2245045-C (CA)
Inventor: HASHIMOTO KAZUNORI
IPC: B05B11/00
Filed: 1990-12-04
Granted: 2001-02-13
Abstract: Herein  disclosed is a liquid injection container which comprises: a container body; a cylinder depending into the container body from a cap-shaped member fitted on the outer face of the mouth/neck portion of the container body; and an actuator having a stem erected through the top wall of the cap-shaped member from a cylindrical piston, which is fitted in the cylinder, and a head fitted on the upper end of the stem and having a nozzle opened forward.  The actuator is moved up and down with respect to the cylinder for sucking a liquid in the container body into the cylinder and discharging the liquid in the cylinder out of the nozzle through the stem.          A finger knob attached to the top face of the head for receiving a finger.  The vertical movements of the actuator are accomplished by the tip of the finger inserted into the finger knob.  The actuations of the actuator are facilitated by means of auxiliary walls acting as a finger knob and guiding the head.  These auxiliary walls are erected along the righthand and lefthand two side portions of the head.
Patent CA-2246808-C (CA)
Title: Apparatus and method for monitoring optical fibers
Inventor: LEONE FRANK SALVATORE
IPC: H04B10/08
Filed: 1998-09-08
Granted: 2003-02-18
Abstract: An optical apparatus that can be used to monitor and/or test targeted optical fibers. The apparatus is contained within a housing that is sized to fit within a shelf of the frame of a fiber administration system. Within the housing is a stationary plate having a face surface. Incoming optical fibers connect to connectors in an array on the side of the housing. The connector array interconnects the incoming optical fibers to a plurality of optical leads in the housing. The optical leads in the housing are optically coupled to target points on the face surface of the stationary plate. A motor is positioned across from the stationary plate. The motor selectively turns an armature that is attached to the shaft of the motor. A light receiving element is disposed on the armature, wherein the light receiving element optically aligns with each of the target points on the face surface of the stationary plate when moved by the motor. An electro-optical converter is optically coupled to the light receiving element on the armature. As the armature aligns the light receiving elements with the various target points on the face of the stationary plate, signals from the incoming optical fibers are optically connected to the electro-optical converter.
Patent CA-2252560-C (CA)
Title: Treatment of partial growth hormone insensitivity syndrome
Inventor: ATTIE KENNETH M
IPC: A61P5/00
Filed: 1997-04-18
Granted: 2010-12-14
Abstract: Methods for increasing the growth rate of a human patient having partial growth hormone insensitivity syndrome, but not Laron syndrome, are described. One such method comprises ad-ministering an effective dose of growth hormone, preferably growth hormone with a native human sequence, with or without an N-terminal methion-ine, to the patient. The patient is characterized as having a height of less than about -2 standard devi-ations below normal for age and sex, a serum level of high-affinity growth hormone binding protein that is at least 2 standard deviations below normal levels, a serum level of IGF-I that is below normal mean levels, and a serum level of growth hormone that is at least normal. In another such method, the same patient population is treated with an ef-fective amount of IGF-I, given alone or in combi-nation with an amount of growth hormone that is effective in combination with the IGF-I.
Patent CA-2253968-C (CA)
Inventor: MATSUZAWA HAJIME
IPC: G01R31/28
Filed: 1998-11-12
Granted: 2004-03-23
Abstract: In a large-scale integrated circuit, a scan path is divided between an I/0 scan path that is formed by a series connection between only flip-flops that are in a region near an I/0 pin and an internal scan path that is formed by a series connection between other flip-flops. A selector has one of its inputs connected to another end of the I/0 scan path and to one end of the internal scan path, another of its inputs connected to another end of the internal scan path, and its output connected to a scan out. This selector, based on a test mode signal, selects either all scan paths or only the I/0 scan path.