baber/WOPTO huggingface dataset:
Patent CA-2256404-A1 (CA)
Title: Cyclopentan(en)oic acid, 2-alkenyl derivatives as therapeutic agents in the treatment of ocular hypertension
Inventor: GAC TODD S
IPC: C07C405/00
Filed: 1997-05-14
Abstract: The invention relates to the use of omega chain modified prostaglandins as ocular hypotensive. The derivatives used in accordance with the invention are encompassed by structure formula (I): wherein the hatched segments represent .alpha. bonds; the wavy segments represent an .alpha. or .beta. bond; dashed lines represent a double bond or a single bond; X is selected from the group consisting of -OR and N(R2); Y is = O or represents 2 hydrogen radicals, provided that Y represents 2 hydrogen radicals when X is OH; R is hydrogen or a lower radical having up to six carbon atoms; R is = O or hydroxy; m is = 0, 2, 4 or 6, provided that m is not 4 when the wavy segment represents a .beta. bond; n is 0, 2, 4 or 6, x and y are 0 or 1, provided that x is 1 when y is 0 and y is 1 when x is 0; or 9, 11 and/or 15 ester derivatives of said compounds of formula (I), e.g. a C1 and C6 alkyl ester derivative; or a pharmaceutical acceptable salt thereof.
Patent CA-2258113-A1 (CA)
Title: Bags comprising matching closure profiles actuated by slider
Inventor: BOIS HENRI GEORGES
IPC: B65D33/25
Filed: 1998-04-08
Abstract: PCT No. PCT/FR98/00710 Sec. 371 Date May 17, 1999 Sec. 102(e) Date May 17, 1999 PCT Filed Apr. 8, 1998 PCT Pub. No. WO98/45182 PCT Pub. Date Oct. 15, 1998The present invention relates to a bag having complementary closure strips (30, 40) actuated by cursor (50), the bag being characterized by the fact that it comprises means (60) adapted to ensure sealing between the inside walls of the bag when the bag is in its closed position, said means being in the zone of the bag underlying the strips (30, 40) at their end that receives the cursor (50) in the closed position.
Patent CA-2262060-A1 (CA)
Title: Prosthesis brake joint
Inventor: WAGNER HELMUT
IPC: A61F2/56
Filed: 1999-02-16
Abstract: The invention relates to a brake joint for a prosthesis, in particular, to a brake-action knee joint for a leg prosthesis. There is an upper joint part, a lower joint part, and a joint shaft for pivotally connecting the upper and lower joint parts. The joint shaft is connected to the lower joint part in a rotatably fixed manner and is designed as a brake shaft. The joint shaft is surrounded by a brake arrangement, which bears upon the joint shaft it and is arranged in a cylindrical recess, which, together with the joint shaft, forms an annular chamber in a clamping part forming a central joint part. The upper joint part is mounted to the clamping part in an articulated manner via a pivot pin in such a way that the upper joint part, when loaded, impacts on the clamping part and thus the brake arrangement and thereby exerts a braking action on the joint shaft. To improve the brake arrangement, the invention proposes that the brake arrangement be formed by needle rollers, which are arranged with their axes parallel to the joint shaft. The needle rollers surround the joint shaft about its entire circumference and comprise an inner needle-roller ring, which bears on the joint shaft, and an outer needle-roller ring, which bears on the outer circumferential surface of the annular chamber and whose needle rollers engage like teeth between the inner needle rollers, and by an indexing wedge which sits on the upper joint part.   When the upper joint part is loaded, in an approximately radial direction of action relative to the joint shaft, the indexing wedge presses apart two adjacent inner needle rollers in the circumferential direction of the joint shaft.
Patent CA-2262272-A1 (CA)
Title: Earphone-microphone adapter
Inventor: YANG BILL
IPC: H04W92/08
Filed: 1999-02-19
Abstract: An adapter for connecting an earphone-microphone set to a mobile telephone such that a muting function is added to the system. Moreover, an older earphone-microphone set can also be connected to a mobile telephone via this adapter.
Patent CA-2262711-A1 (CA)
Inventor: VIAN PAOLO
IPC: B60R21/2165
Filed: 1999-02-24
Abstract: A steering wheel is provided with an airbag. The steering wheel has a central part (1) for connection to a steering wheel attachment, having a cavity (15) for housing a module (16) comprising the airbag safety device and a horn, an outer ring (2) and a plurality of substantially radial spokes (3) connecting the outer ring (2) to the central part (1) of the steering wheel, The plurality of spokes (3) is covered with a first metal sheet (17,18) integral therewith so as to give the steering wheel a sporting appearance.
Patent CA-2263927-A1 (CA)
Inventor: HAMILTON GREGORY S
IPC: C07D207/06
Filed: 1997-09-09
Abstract: This invention relates to neurotrophic low molecular weight, small molecule heterocyclic thioesters and ketones having an affinity for FKBP-type immunophilins, and their use as inhibitors of the enzyme activity associated with immunophilin proteins, particularly peptidyl-prolyl isomerase, or rotamase, enzyme activity.
Patent CA-2265272-A1 (CA)
Title: Medical needle for use in ultrasound imaging
Inventor: COCKBURN JOHN FRANCIS
IPC: A61B17/34
Filed: 1999-03-12
Abstract: A medical needle including a tubular stylet has one or more apertures at its distal end, which are located and dimensioned to prevent occlusion by body tissue. The aperture may be formed by a convexly sided, transverse channel cut into the needle wall or can face rearwardly. Alternatively, a plurality of spaced, longitudinal slits or circular apertures can be provided by laser perforation. The needle can be associated with an outer cutting sheath housing a trocar for use in ultrasound imaging. In further embodiments, the needle can constitute the stylet of an aspiration biopsy needle or a needle assembly can comprise a stylet within a cannula, the stylet having an expanded distal tip of cross-section complimentary to that of the cannula bore so as to prevent occlusion of the cannula end by tissue.
Patent CA-2266629-A1 (CA)
Title: Taste-masked microcapsule compositions and methods of manufacture
Inventor: NG STEVEN
IPC: A61K9/00
Filed: 1997-10-01
Abstract: A taste-masked microcapsule composition for administration of a drug is provided. The composition comprises microcapsules of drug and a substantially water-insoluble polymeric material, typically a cellulosic polymer. The microcapsule composition may be incorporated into any number of pharmaceutical formulations, including chewable tablets, effervescent tablets, powders, liquid dispersions, and the like. A method for masking the taste of drugs is also provided, involving a phase separation coacervation technique in which drug is coated with relatively high levels of a polymeric material. These high coating levels give rise to effective taste masking, while nevertheless allowing targeted release of drug, so that the drug is released shortly after passage through the mouth.
Patent CA-2268386-A1 (CA)
Title: High molecular weight trichoderma cellulase
Inventor: LARENAS EDMUND A
IPC: A23K1/165
Filed: 1997-10-07
Abstract: A purified cellulase composition is provided which may be isolated from a fermentation culture of Trichoderma longibrachiatum and has a molecular weight of about 95-105 kD as approximated on SDS-PAGE, a pI of about 5.6-6.8 as estimated on an IEF gel and a pH  optimum of about 5.0 on RBB-CMC when measured at 65 °C and pH4 or lower at temperatures of 40 °C and 50 °C.
Patent CA-2269230-A1 (CA)
Inventor: DISIMONE JOHN
IPC: B29C45/26
Filed: 1997-11-03
Abstract: An injection molding apparatus and method provides a mold injection nozzle (32) slidably mounted in a bore (28, 30) extending through a first mold half (16) and, optionally, a back plate. The mold nozzle (32) has a tip portion (50) providing a tip surface. In a second mold half (14), there is a corresponding, aligned bore, in which is located a plug (90). The plug (90) can be displaced by a plunger (88) but is separate from the plunger (88). In use, the plug (90) can be used to control the width of a gate between the plug (90) and the tip surface through which resin flows into the cavity. After molding, the plug (90) is displaced from its bore (72) into the bore (30) in the other mold half (16), both to close off the tip portion and to displace the plug (90) and tip portion away from the mold cavity (18). The mold is then opened with the plug (90) and the mold injection nozzle (32) being retained in the first mold half (16).
Patent CA-2270351-A1 (CA)
Inventor: ARGILOFF EVAN B
IPC: E02D29/14
Filed: 1999-05-03
Abstract: A manhole frame and cap assembly. For use in new road construction or road resurfacing, where the assembly sits on a manhole shaft, adjustment rings, stones, mortar, bricks or any other suitable material. The manhole frame assembly includes two parts, a frame having a flat base and cylindrical portion perpendicular to the base, with three identical sloped ledges on the inner wall of the cylindrical portion, and a frame insert with it's base having a complimentary profile to that of the ledges, whereby the insert is rotated and seated on the internal ledges in various positions corresponding to different heights. The insert may have an internal flange or stubs to provide a hard bearing surface in which the manhole cap will sit
Patent CA-2270465-A1 (CA)
Inventor: PRADA-SILVY RICARDO ALFREDO
IPC: C11D1/62
Filed: 1997-11-03
Abstract: The subject invention involves laundry detergent compositions, preferably in granular form, particularly useful for machine laundry operations. The compositions comprise: a) from about 6 % to about 18 % surfactant comprising 1) from about 5 % to about 10 % anionic surfactant selected from alkylbenzene sulfonate surfactant, alkyl sulfate surfactant and alkyl ethoxy ether sulfate surfactant; 2) from about 0.2 % to about 4 % hydroxyalkyl quaternary ammonium cationic surfactant; and 3) from 0.4 % to about 8 % nonionic surfactant selected from alkyl ethoxy alcohol surfactant, amine oxide surfactant, and polyhydroxy fatty acid amide surfactant; b) from about 0.05 to about 4 % polymeric soil release agent comprising: 1) from about 10 % to about 99.5 % esters comprising, per mole of said ester: i) from about 1 to about 2 moles of sulfonated polyethoxy/propoxy end-capping units; ii) from about 0.5 to about 66 moles of units selected from the group consisting of a) oxyethyleneoxy units; b) a mixture of oxyethyleneoxy and oxy-1,2-propyleneoxy units; and c) a mixture of a) or b) with poly(oxyethylene)oxy units; iii) from about 1.5 to about 40 moles of terephthaloyl units; and iv) from 0 to about 26 moles of 5sulfoisophthaloyl units; 2) from about 0.5 % to about 20 % crystallizationreducing stabilizer selected from sulfonate-type hydrotrope, alkylbenzene sulfonate, paraffin sulfonate, and mixtures thereof; and c) from about 80 % to about 94 % other components.
Patent CA-2271376-A1 (CA)
Title: Construction line holder
Inventor: CAMPANA VINCENT
IPC: B65H75/28
Filed: 1999-05-10
Abstract: A light weight construction line holder having an elongated shaft which terminates at each end in a spiral configuration or coil. The shaft is provided with a through hole for securing an inner end of a construction line. The construction line is wrapped on the shaft and may be tied off at any point along the length thereof by inserting the line into one of the coils and pulling the line under and around the free end of the coil. The line holder is preferably formed of a continuous length of a cylindrical metal rod and is provided with a rustproof coating.
Patent CA-2271855-A1 (CA)
Inventor: ATKINSON FRANK S
IPC: E02B3/14
Filed: 1997-10-28
Abstract: The erosion control system (10) includes a plurality of erosion control blocks (12) connected to one another by connectors (20) to form an interconnected network of erosion control blocks conforming to the underlying terrain for erosion protection. Each erosion control block includes a plurality of apertures (30) therethrough each forming a sidewall. The connector (20) includes a pair of projecting legs (36, 38) for insertion into adjacent erosion control blocks. Each leg attachingly engages the side wall of the aperture of an erosion control block for connecting that erosion control block to an adjacent block. The legs include tapered extensions (122) which frictionally engage the side wall, and in one embodiment of the erosion control block, the side wall includes a shoulder (40) which engages the terminal end of the tapered extension. The erosion control block may have one end with a convex arcuate (256) surface and another end with a concave arcuate surface (258) for providing an articulating joint between adjacent erosion control blocks. The erosion control block also may include a plurality of horizontal grooves (290) in the bottom planar surface of the block for hydrostatic relief.
Patent CA-2274240-A1 (CA)
Inventor: BROWN MICHAEL J
IPC: H01M8/04111
Filed: 1999-06-10
Abstract: In one embodiment, an electrical current generating system consists of a fuel cell, and an oxygen gas delivery system. The fuel cell includes an anode channel having an anode gas inlet for receiving a supply of hydrogen gas, a cathode channel having a cathode gas inlet and a cathode gas outlet, and an electrolyte in communication with the anode and cathode channel for facilitating ion exchange between the anode and cathode channel. The oxygen gas delivery system is coupled to the cathode gas inlet and delivers oxygen gas to the cathode channel. The electrical current generating system also includes gas recirculation means coupled to the cathode gas outlet for recirculating a portion of cathode exhaust gas exhausted from the cathode gas outlet to the cathode gas inlet. In another embodiment, an electrical current generating system consists of a fuel cell, an oxygen gas delivery system, and a hydrogen gas delivery system. The oxygen gas delivery system is coupled to the cathode gas inlet and delivers oxygen gas to the cathode channel. The hydrogen gas delivery system includes a hydrogen gas inlet for receiving a first hydrogen gas feed from the anode gas outlet, and a hydrogen gas outlet coupled to the anode gas inlet for delivering hydrogen gas to the anode channel with increased purity from the first hydrogen gas feed.
Patent CA-2274633-A1 (CA)
Inventor: SHIN HYUNKOOK
IPC: D01D5/11
Filed: 1997-01-09
Abstract: A flash-spun material comprised of at least 90 % by weight of polymers selected from the groups A, B, and C; wherein group A comprises polymers with a melting point above 280 ~C that are comprised of halocarbon polymers in which at least 20 % of the total number of halogen atoms in each halocarbon polymer are fluorine atoms; wherein group B comprises polymers with a melting point above 280 ~C that are comprised of oxyhalocarbon polymers in which at least 20 % of the total number of halogen atoms in each oxyhalocarbon polymer are fluorine atoms; and wherein group C comprises perfluorinated ion exchange polymer resins. A process for producing such flash-spun material and a solvent for producing such flash-spun material are also provided.
Patent CA-2275391-A1 (CA)
Title: File processing method, data processing device, and storage medium
Inventor: TSUBOKURA TAKASHI
IPC: G11B20/00
Filed: 1998-10-20
Abstract: A file processing method wherein first data and second data on indices of the first data are divided into sections, the sections are compressed to generate a compression file, and the compression file is stored in a storage medium along with information on the addresses of the compressed sections. A data processing device and a storage medium are also disclosed.
Patent CA-2275421-A1 (CA)
Title: Procede permettant d'augmenter la resistance au retrait de la laine
Inventor: YOON MEE-YOUNG
IPC: D06M16/00
Filed: 1997-12-16
Abstract: L'invention concerne un procédé permettant de réduire le retrait de la laine, qui consiste à: (a) préparer une solution aqueuse comprenant une oxydase ou une peroxydase; et (b) mettre un article contenant de la laine en contact avec ladite solution aqueuse dans des conditions appropriées à une réaction de ladite oxydase ou peroxydase avec ladite laine.
Patent CA-2275542-A1 (CA)
Title: An organic light emitting device containing a protection layer
Inventor: THOMPSON MARK E
IPC: H05B33/12
Filed: 1997-12-23
Abstract: The present invention is directed to organic light emitting devices comprised of a heterostructure for producing electroluminescence, wherein the heterostructure includes a protection layer between a hole transporting layer and an indium tin oxide anode layer. The hole injection enhancement layer may be comprised of 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA), bis(1,2,5-thiadiazolo)-p-quinobis(1,3-dithiole) (BTQBT), or other suitable, rigid organic materials. The present invention is further directed to methods of fabricating such devices, wherein the devices may include alternative combinations of materials for each of the layers included in the devices.
Patent CA-2277323-A1 (CA)
Title: Read head for luminometer
Inventor: DOMS LUTZ
IPC: G01N21/01
Filed: 1999-07-09
Abstract: The read head for luminometer includes a housing that encloses a cylindrical core. The housing has a through opening that aligns with a central passageway of the cylindrical core to define a confinement space. The housing and the cylindrical core are formed in two parts that diverge or converge with respect to each other under the influence of a manually controlled actuator member. When the housing parts and the core parts are in a closed convergent position an analytical line that extends through the housing and the core is maintained in a confined position within the confinement space of the housing and the core. Actuation of the housing parts and the core parts into a diverged open position opens the confinement space that accommodates the analytical line.  The analytical line can thus be lifted away from the previous confinement space or reinstalled back into the open confinement space and then locked in place by an actuation of the housing parts into a closed converged position along with the core parts. Installation or removal of the analytical line from the read head is thus accomplished in a direction that is perpendicular to the direction of the longitudinal axis of the confinement space.
Patent CA-2278713-A1 (CA)
Inventor: KANO FUMIHIKO
IPC: C07C253/14
Filed: 1998-08-20
Abstract: L'invention concerne un procédé permettant de produire des dérivés d'ester butyrique représentés par la formule générale (2) en grandes quantités, dans lequel les composés représentés par la formule générale (1): HOCH¿2?-CH=CH-COOR peuvent être éliminés de manière efficace. Le procédé de production de dérivés d'ester butyrique représentés par la formule générale (2) comporte l'étape consistant à traiter un dérivé d'ester butyrique représenté par la formule générale (2) et contenant un composé représenté par la formule générale (1) avec un réactif d'addition capable de s'additionner à la liaison éthylène pour former un produit d'addition pouvant être séparé du dérivé d'ester butyrique représenté par la formule générale (2), ou à faire réagir un composé représenté par la formule générale (3) avec un cyanure par une méthode d'écoulement.
Patent CA-2279043-A1 (CA)
Title: Shared voice and data line
Inventor: JOHAN RON
IPC: H04L12/28
Filed: 1999-07-28
Abstract: This arrangement provides a simplified technique for using a subscriber's telephone for both telephone messages (voice) and data messages such as e-mail by maintaining the data link open while the phone is idle. The phone (1) and data terminal e.g. PC (2), are connected to the line (4) via a subscriber interface (3) which can distinguish between incoming voice and data messages and route them to the phone (1) or terminal (2). At the access point to the network e.g.  exchange (6), network interface (5) distinguishes voice and data and routes them to the PSTN (7) or data network (10).
Patent CA-2279880-A1 (CA)
Title: Mechanical splice for crimping optical fibre
Inventor: LESUEUR PHILIPPE
IPC: G02B6/38
Filed: 1998-01-29
Abstract: A splice for crimping optical fibers includes two half cylinders, a support block and a pressing block, which are mutually pressed by a crimping cylinder. The support block is provided with a longitudinal groove for receiving the stripped fiber and bears capped edges. The capped edges and stops are symmetrically mounted on either side of the longitudinal axis of the half cylinders and are designed for maintaining axis of the half cylinders and are designed for maintaining a small space between the two half cylinders in the zone where they are located.
Patent CA-2282307-A1 (CA)
Title: Laboratory in a disk
Inventor: VIRTANEN JORMA
IPC: B01L3/00
Filed: 1998-02-27
Abstract: An apparatus is described that includes an optical disk, adapted to be read by an optical reader, comprising a first sector having substantially selfcontained assay means for localizing an analyte suspected of being in a sample to at least one, predetermined location in the first sector and a second sector containing control means for conducting the assay and analyte location information, with respect to one or more analytes suspected of being in a sample, accessible to the reader, wherein the presence or absence of the analyte at said location is determinable by the reader using the control means and the location information. Depending on the nature of the assay, the disk will include fluid storage means, fluid transfer means, such as one or more capillary ducts, valves, batteries, dialyzers, columns, filters, sources of electric fields, wires or other electrical conductive means such as metallic surface deposits and the like.
Patent CA-2285196-A1 (CA)
Title: System and method for hydrate recovery
Inventor: AGEE KENNETH L
IPC: E02F7/10
Filed: 1998-04-01
Abstract: A system for recovering liquid hydrocarbons from hydrates on an ocean floor includes a vessel, a positioning subsystem coupled to the vessel for holding the vessel in a desired location over a hydrate formation, a hydrate recovery subsystem coupled to the vessel for delivering hydrates from an ocean floor to the vessel and separating gas from hydrates removed from an ocean floor, a gas conversion subsystem coupled to the hydrate recovery subsystem for converting gas to liquids, and a storage and removal subsystem. Excess energy from the gas conversion subsystem is used elsewhere in the system. A method of recovering hydrates from an ocean floor is also provided.
Patent CA-2285668-A1 (CA)
Title: Rheolytic thrombectomy catheter and method of using same
Inventor: WIESEL STEVEN E
IPC: A61B17/00
Filed: 1999-10-06
Abstract: A rheolytic thrombectomy catheter and method of using same to remove thrombus from a body vessel or other body cavity. Several embodiments are disclosed. All embodiments include an outer catheter having a lumen and an inner high pressure tube of a size to enable it to be passed through the lumen of the catheter. The distal end of the inner high pressure tube extends beyond the distal end of the catheter and carries a jet cap for directing one or more jets of saline proximally toward the distal end of the catheter. In some embodiments, the catheter has a distally located inwardly directed stationary stop and the inner high pressure tube includes a distally located outwardly directed transitional stop for engaging the inwardly directed stationary stop to thereby position the jet cap at a defined distance from the distal end of the catheter. In other embodiments, a stationary stop is located at the proximal end of the catheter and a transitional stop is carried on the proximal end of the inner high pressure tube. In the embodiments having the stationary and transitional stops located proximally, the inner high pressure tube includes a flow director at its distal end. In use, thrombus is dislodged, entrained, and broken into pieces by the saline jets and evacuated proximally through the lumen of the catheter.