baber/WOPTO huggingface dataset:
Patent CA-2173313-C (CA)
Title: Rock bit nozzle diffuser
Inventor: ENSMINGER JERRY
IPC: E21B10/60
Filed: 1996-04-02
Granted: 2006-07-11
Abstract: A rotary cone rock bit for use in earthen formations with drilling fluid hydraulics wherein diffusion type nozzles are utilized in the outer diameters of a dome portion of the rock bit resulting in fluid, as it leaves the exit end of the nozzle, continues to diffuse outboard creating a larger surface area to entrain fluid. The diffused spray of fluid at a lesser velocity will better clean the rotary cones by moving the fluid closer to the cones without erosive damage to the cones or loss of cutter inserts or milled teeth. The diffused spray will additionally cover a larger area of a borehole bottom resulting in better bottom hole cleaning.
Patent CA-2178838-C (CA)
Title: Speed responsive coupling device especially for fall arrest apparatus
Inventor: FEATHERS LEONARD JOHN
IPC: A62B35/04
Filed: 1995-01-13
Granted: 2003-08-12
Abstract: A speed responsive coupling device for locking a first member with respect t o a second against relative rotation in at least one direction, which device c omprises a ratchet wheel carried by said first member which is engageable by a pawl c arried by the second member, and in which the pawl is arranged as a mechanical togg le switch which is biased to flip between a "free" condition in which such rela tiverotation is permitted and a "lock" condition in whic h the pawl engages the ratchet wheel to disallow such relative rotation, said pawl being linked to a rocker  which is so shaped and disposed that when the pawl is in the free condition, such relative rotation causes the rocker to rock and that when the speed of such relative rotation exceeds a threshold value, the strength of the rocking motion imparted cause s the rocker to flip the pawl to the lock condition.
Patent CA-2179816-C (CA)
Title: Pince hydraulique de serrage
Inventor: RICHARDSON ALLAN S
IPC: E21B19/16
Filed: 1995-01-31
Granted: 2001-01-02
Abstract: Pince hydraulique de serrage dont l'ouverture permet de saisir des tubes de différents diamètres, de bloquer, débloquer, visser ou dévisser les parties filetées et à laquelle la pression hydraulique est fournie par une pompe placée dans un ensemble rotatif (10), ladite pompe étant de préférence reliée par un embrayage magnétique (42) à un moteur (41) placé hors de l'ensemble rotatif (10).
Patent CA-2182707-C (CA)
Title: 3'-substituted nucleoside derivative
Inventor: MATSUDA AKIRA
IPC: C07H19/16
Filed: 1995-12-13
Granted: 2000-05-30
Abstract: The invention relates to a 3'-substituted nucleoside derivative represented by the following general formula (1): <IMG> wherein B means a nucleic acid base which may have a substituent, Z represents a lower alkynyl or lower alkenyl group which may be substituted by a group represented by the formula: <IMG> in which R a, R b and R c are individually a lower alkyl group or a phenyl group, or an oxiranyl group which may have at least one lower alkyl group, R1 and R2 individually represent H or an ester-forming residue that is easily eliminated in vivo, and R3 is H, a mono- or polyphosphoric acid residue, or an ester-forming residue that is easily eliminated in vivo, with the proviso that the sugar moiety is ribose, or a pharmaceutically acceptable salt thereof. The 3'-substituted nucleoside derivative according to the invention has an excellent antitumor activity and is hence useful in the treatment and prevention of cancers.
Patent CA-2183895-C (CA)
Inventor: WINSTON EDITH
IPC: A63B21/065
Filed: 1996-08-21
Granted: 2002-05-28
Abstract: An exercise device with compartment-housed weights sometimes used without all weights in place, adapted for use in a pool environment by a flap which is held in place over the compartment by "VELCRO*" hook and loop fasteners so as to contribute to providing a hermetic seal so that there is nominal seepage of water into empty compartments as might inadvertaently add to the weight used for exercise routines. * trade-mark
Patent CA-2186663-C (CA)
Inventor: PLUMMER LEONARD M
IPC: H01R13/523
Filed: 1996-09-27
Granted: 2005-03-22
Abstract: An electric submersible pump is provided having a pothead connector for use to connect a downhole cable to an electric motor of the submersible pump. The pothead connector has a tubular housing having an inner end and an outer end. The downhole cable has electrical conductors which are separately covered by insulation layers. Lead sheaths separately extend around each of the insulation layers to encase each the electrical conductors. The downhole cable extends through the inner end and into the tubular housing, and then is electrically connected to the electric motor through the outer,end of the tubular housing. An insulator is provided in the outer end of the tubular housing for separating electrical conductors in alignment for mating with a connector mounted to the electric motor. A lead based alloy solder seal is disposed within the tubular housing, intermediately between the inner and outer ends.      The solder seal extends between and is wetted to the protective lead sheaths and an interior perimeter of the tubular housing to seal therebetween. An epoxy layer extends between the cable and the interior perimeter of the tubular housing, adjacent to an outer end of the lead based alloy solder seal. A second epoxy layer is disposed within the tubular housing on an inner side of the lead based alloy solder seal, opposite from the outer side.      Fasteners secure the tubular housing to the electric motor.
Patent CA-2193438-C (CA)
Inventor: UCHIDA KAORU
IPC: G06K9/00
Filed: 1996-12-19
Granted: 2000-05-02
Abstract: The invention provides a fingerprint characteristic extraction apparatus wherein classification and preselection processing with an augmented degree of accuracy can be achieved without significantly increasing the processing time.  The apparatus uses, in addition to characteristic amounts used in ordinary preselection processing, another characteristic amount obtained from a fingerprint image for the preselection processing.  The apparatus includes a ridge extraction section for extracting ridges from an inputted fingerprint image, a singular point detection section for detecting singular points from the ridges, a main pattern discrimination section for discriminating a pattern of the inputted fingerprint image, and a singular point characteristic calculation section for detecting characteristic amounts between the singular points.  The apparatus further includes a joint line extraction section for extracting a joint line from the inputted fingerprint image, and a joint line characteristic calculation section for calculating joint line singular point characteristic amounts from the joint lines, the ridges and the singular points.
Patent CA-2199404-C (CA)
Title: Piece de coupe rapportee comportant un brise-copeaux pour copeaux minces
Inventor: NIEBAUER KENNETH L
IPC: B23B27/14
Filed: 1995-11-09
Granted: 2001-02-27
Abstract: L'invention a pour objet une pièce de coupe rapportée (1) présentant une configuration de brise-copeaux pour fragiliser et briser les copeaux (61) minces de type feuille métallique, produits lors des opérations de perçage ou de découpe. La pièce de coupe rapportée (1) comprend un corps polygonal (3) présentant une surface supérieure (5), une surface de dégagement latérale (9), et un bord de coupe (11) défini entre les deux. Il comporte également un brise-copeaux (23) formé par une rainure allongée (25) ménagée dans la surface supérieure (5) derrière le bord de coupe (11) conjointement avec une pluralité d'évidements (27) prévus sur la rainure (25) et comportant des bords opposés (43). La paroi arrière (34) de la rainure (25) applique des forces de roulage sur les copeaux (61), tandis que les bords opposés (43) des évidements (27) reçoivent les copeaux (61) et les font friser; ce qui les fragilise lors du durcissement à froid. Les copeaux ainsi frisés sont brisés par les forces de roulage appliquées par les parois arrière (34) et postérieure (42) de la rainure (25) et les évidements (27), ce qui les transforme en petits morceaux facilement expulsés de la proximité du site de coupe.
Patent CA-2199510-C (CA)
Title: Optical device
Inventor: DAVIES DAVID ARTHUR OWEN
IPC: H01S5/40
Filed: 1995-09-14
Granted: 2001-02-20
Abstract: An optical device for use as an amplifier or modulator comprises a semiconductor substrate (2) with an elongate waveguide region (1) with a light guiding boundary that extends between an input (3) and an output (4) for optical radiation. An optically active layer of material (6) produces amplification of light travelling inthe waveguide region (1). The width (w) of region (1) tapers outwardly from the input to allow amplification of input optical signals, and tapers towards the output (4) so as to concentrate the amplified light in a single mode to the output. The concentration of the amplified light in the active region may produce non-linear effects which are exploited in order to achieve data modulation or switching. In one embodiment, the waveguide region includes a first active region (30) to produce optical amplification, and a second passive region (31) for concentrating light to the output.
Patent CA-2199715-C (CA)
Title: Novel implant and novel vector for the treatment of acquired diseases
Inventor: LEROY PIERRE
IPC: C12N5/10
Filed: 1995-09-13
Granted: 2010-05-25
Abstract: Genetically modified cell implant comprising an exogenous nucleotide sequence coding for all or part of an antibody, method for the preparation of such an implant and its therapeutic use for the treatment or prevention of an acquired disease. The invention also concerns an adenoviral vector for the expression of one or more proteins capable of forming a multimer, viral particles and cells containing the adenoviral vector, a pharmaceutical composition and its therapeutic use.
Patent CA-2204227-C (CA)
Inventor: OKA MASAAKI
IPC: G06T15/00
Filed: 1997-05-01
Granted: 2006-02-14
Abstract: Dans un système de traitement de données pour améliorer la vitesse de traitement, un CPU principal transmet les coordonnées d'un point central dans un espace tridimensionnel sur un bus principal 101 à un préprocesseur programmable qui génère des données de figure pour dessiner plusieurs unités de figures (polygones) autour du point central transmis du CPU et envoie les données de figure à un GPU. Le GPU effectue un traitement conformément aux données de figure fournies par le PPP pour dessiner une image définie par la combinaison des unités de figure sur une mémoire graphique.
Patent CA-2212082-C (CA)
Inventor: REAGAN RANDY ALAN
IPC: G02B6/00
Filed: 1997-07-31
Granted: 2002-07-16
Abstract: A fiber distribution shelf containing an optical switch within the confines of the shelf structure. The fiber distribution shelf is part of an optical fiber administration system where various stages of switching are used to interconnect an optical time domain reflectometer to the optical fibers that terminate on a fiber distribution shelf within a fiber administration system. By having the shelf optical switch entirely contained within the shelf structure of a fiber distribution shelf, a unique configuration is provided that greatly reduces the size and complexity of the overall fiber administration system.
Patent CA-2217880-C (CA)
Inventor: NUBLING CHRISTOPH
IPC: C07C213/08
Filed: 1996-05-07
Granted: 2004-02-24
Abstract: A process for preparing enantiomerically pure cis-1-amino- 2-hydroxyindan, which comprises a) converting racemic trans-1-aminoindan-2-ol with acids or acid derivatives of the general formula RCOX by conventional methods into amides of type A <IMG> where the substituents have the following meanings: R is hydrogen, C1-C6-alkyl, C3-C6-cycloalkyl and phenyl, it being possible for these groups to carry one to three halogen atoms and/or one to three of the following radicals: cyano, C1-C6-alkoxy, C1-C6-alkylthio, phenyl, phenylthio and phenoxy, it being possible for the phenyl radicals in turn to carry one to three of the following groups: C1-C4-alkyl, C1-C4-alkoxy, halogen, cyano and nitro, X is OH, halogen, OR1 and SR1, where R1 is C1-C6-alkyl, phenyl and COR, b) adding seed crystals of one enantiomer to a supersaturated solution or melt of the racemic amide A, c) isolating the crystals which have separated out, and again supersaturating the remaining mother liquor or melt after dissolving racemic amide A, and adding seed crystals of the other enantiomer, leading to selective crystallization of the latter, d) converting the resulting enantiomerically pure traps amide by conventional methods into the enantiomerically pure cis-1-amino-2-hydroxyindan.
Patent CA-2223215-C (CA)
Title: Apparatus for processing folded printed products
Inventor: NEWSOME JOHN ROBERT
IPC: B65H29/62
Filed: 1997-12-01
Granted: 2003-08-05
Abstract: A gate for rejecting from a gathering conveyor folded printed products which are found to be defective.  The gate includes several mating pairs of ejector rolls positioned to form a nip above the gathering conveyor, and an air ejection system for lifting a defective product into the nip so that the ejector rolls engage the lifted product and convey it to a reject receptacle.
Patent CA-2225937-C (CA)
Title: Method and system for completing a voice connection between first and second voice terminals in a switched telephone network
Inventor: MELICK GORDON R
IPC: H04Q1/30
Filed: 1997-12-24
Granted: 2001-12-04
Abstract: A method and a system for completing a voice connection between a first and second voice terminals in a switched telephone network are disclosed. The system includes a Virtual Switching Point (VSP) in a switched telephone network having a connection to a data network such as the Internet. Call requests are received by the VSP from the data network and processed by the VSP to establish a voice connection between a calling party which initiates the call request and a called party number indicated in the call request message. The call request message may include a plurality of called party numbers and the VSP completes calls to each number in sequence without terminating the voice connection with the calling party, until an attempt to connect with each of the called numbers has been made or a call control option is exercised by the calling party. The advantage is an efficient, reliable method of initiating calls from a data network to permit a multi-call session without disconnection or dialing between calls and fully functional computer telephony integration and control over calling connections using the inherent switching power resident in the switched telephone network.
Patent CA-2234469-C (CA)
Inventor: NATOLI JOHN
IPC: A61K9/50
Filed: 1998-04-08
Granted: 2001-01-09
Abstract: The present invention relates to a method for delivering a bioactive compound to the site where it will exhibit its biological affect and controlling the delivery of the bioactive compound through the physical-chemical properties of aparticle containing the bioactive compound. The method is particularly useful for delivering agricultural chemicals and pharmaceutical compounds.
Patent CA-2239619-C (CA)
Inventor: GOLDBERG LEW
IPC: H04B10/291
Filed: 1996-12-09
Granted: 2006-08-01
Abstract: A technique for the efficient coupling of pump light into a fiber (19) by injecting the light through the side of a fiber leaving the fiber ends accessible to input and output coupling. This technique relies on the fabrication of a groove (18) or a microprism into the side of the fiber. The groove shape is adapted effective to the variables of ligh t wavelength, orientation of the source and visible relating to fiber construction so as to allow the efficient injection of pump light. Lig ht emerging from a laser diode or other suitable means (16) for launching light placed on the opposite side of the fiber, and in proximi ty to the fiber wall, propagates laterally through the fiber and impinges on the sides of the groove (18). The vertical rays impinging on the groove facets are specularly reflected and directed along the horizontal fiber axis of the outer core. By employing a reflective coating o n the groove (18), the reflectivity of the groove facets approach 100% for a wide range of incidence angle. In this manner one can launch external optical signals into an optical fiber (19).
Patent CA-2242798-C (CA)
Title: Modular instrumentation for bone preparation and implant trial reduction of orthopedic implants
Inventor: LASALLE DAVID L
IPC: A61B17/17
Filed: 1998-07-09
Granted: 2007-02-06
Abstract: The invention provides a modular system of components used as bone preparation tools and trial prosthesis components. The system includes a trial tibial tray bearing element that mounts upon a prepared tibia, a punch bushing that serves the purpose of a trial tibial stem and helps to guide a tibial punch through the tibia. The trial template element, the punch bushing and the tibial punch can remain in position on the patient's tibia while one or more trial tibial bearing inserts or samples are attached thereto to determine the proper fit and orientation of a prosthesis.
Patent CA-2248869-C (CA)
Title: Allele suppression
Inventor: FARRAR GWENYTH JANE
IPC: A61K48/00
Filed: 1997-03-03
Granted: 2011-01-04
Abstract: A strategy for suppressing expression of one allele of an endogenous gene is provided comprising providing suppression effectors such as antigens nucleic acids able to bind to polymorphisms within or adjacent to a gene such that one allele of a gene is exclusively or preferentially suppressed and if required a replacement gene can be introduced. The invention has the advantage that the same suppression strategy when directed to polymorphisms could be used to suppress, in principle, many mutations in a gene. This is particularly relevant when large numbers of mutations within a single gene cause disease pathology.
Patent CA-2252822-C (CA)
Title: Composants d'amortissement d'emission d'ultrasons
Inventor: DIMATTEO STEPHEN
IPC: A61B17/22
Filed: 1998-02-18
Granted: 2007-09-04
Abstract: La présente invention concerne un dispositif (150) chirurgical à ultrasons comprenant un composant (86) d'émission conçu de manière à recevoir une vibration ultrasonore à partir d'un ensemble (82) transducteur et à émettre la vibration ultrasonore à partir d'une première et d'une seconde extrémité. Un élément (160) interne d'amortissement entoure au moins une partie du composant (86) d'émission. L'élément (160) d'amortissement est conçu de manière à venir en contact avec le composant (86) d'émission amortissant ainsi toute vibration indésirable au cours de l'émission d'ultrasons.
Patent CA-2255653-C (CA)
Title: Programmably upgradable implantable medical device
Inventor: STOTTS LAWRENCE J
IPC: G06F21/12
Filed: 1997-05-14
Granted: 2005-12-27
Abstract: An implantable cardioverter/defibrillator device is implemented to be selectively non-invasively upgraded from time to time after implantation to enable the device to provide additional therapy for arrhythm ia treatment as the patient's need for such treatment undergoes change. The device is adapted to provide a plurality of functions corresponding to different levels of therapy for treating arrhythmias, and to respond to each different type of arrhythmia that may be sensed, to suppl y a function which is designated as being appropriate to relieve that respective arrhythmia. Each function is not necessarily unique to treating a particular arrhythmia, and, in at least some instances, may be used to treat more than one of the plurality of different types of arrhythmias. At the time of its implant, the device is restricted from providing those of the plurality of functions which are deemed as being non- essential to the patient's needs at that time. From time to time thereafter, however, as the patient experiences periodic need for additional therapy, restricted functions of the device are selectively restored by external programming, but only if the programmer is able to supply to the device an enabling code which is substantially unique to that device. In this way, restoration of the restricted functions is locked out except with a prescribed key.
Patent CA-2256021-C (CA)
Title: Reversing mechanism for electric motors
Inventor: HOWARD THOMAS J JR
IPC: H02K23/18
Filed: 1998-12-11
Granted: 2005-10-18
Abstract: A power tool has a mechanism to reverse a motor. The mechanism includes a first member secured with the motor surrounding the motor commutator. A pair of electrical contacts are supported in the first member. A second member is rotatable on the fist member. The second member carries a pair of brush holders which include electrical contacts. As the second member is rotated in the first member, the electrical contacts of the brush holders, as well as the electrical contacts in the first member, electrically couple with one another from a first position to a second position which relates to a forward and reverse direction of the motor. A lever moves the second member between its first and second positions.
Patent CA-2263236-C (CA)
Inventor: FERRAIOLO FRANCESCO
IPC: B21F27/08
Filed: 1999-03-01
Granted: 2004-10-19
Abstract: Protective netting comprises cables (11, 12) crossing in pairs and defining intersection points (10) at which the pairs of cables (11, 12) are fixed together by a connection (13, 14, 15, 16) comprising two first wires (13, 15) each of which has windings around a respective cable (11, 12) on either side of an intersection point and extends across the other cable (12, 11) in order to restrain it at the intersection point. The connection further comprises at least two further wires (14, 16) wound around respective cables and inserted between the windings of the two first wires (13, 15) so as to form groups of turns disposed in the vicinity of each intersection point.
Patent CA-2264879-C (CA)
Title: Fabricating optical waveguide gratings
Inventor: LAMING RICHARD IAN
IPC: G02B27/42
Filed: 1997-08-04
Granted: 2006-11-28
Abstract: A method of fabricating an optical waveguide grating having a plurality of grating lines of refractive index variation comprises the steps of: (i) repeatedly exposing a spatially periodic writing light pattern onto a photosensitive optical waveguide; and (ii) moving the writing light pattern and/or the waveguide between successive exposures of t he writing light pattern, so that each of at least a majority of the grating lines is generated by at least two exposures to different respective regions of the writing light pattern.
Patent CA-2267145-C (CA)
Title: Variable tension process and apparatus for continuously moving layers
Inventor: KASTMAN SCOTT LEE
IPC: A61F13/15
Filed: 1997-10-31
Granted: 2004-09-21
Abstract: A process and apparatus for controllably registering two continuously moving layers of material is provided. A continuously moving first layer has a plurality of components, and a continuously moving second layer has a plurality of reference marks representing a respective plurality of components. The process and apparatus control the distance between reference marks of the second layer to a selected distance, and then controllably registers each reference mark of the second layer to a respective component of the continuously moving first layer.
Patent CA-2270964-C (CA)
Inventor: FLOCKERZI DIETER
IPC: C07D471/04
Filed: 1997-11-05
Granted: 2007-07-31
Abstract: Compounds of formula (I) in which R1, R2, R3 and R4 have the rreanings indicated in the description, are novel active bronchial therapeutics.