baber/WOPTO huggingface dataset:
Patent CA-2169794-C (CA)
Title: Photographic exposure apparatus
Inventor: YAMAMOTO MASAHIRO
IPC: G03B27/70
Filed: 1996-02-19
Granted: 2000-04-18
Abstract: A photographic exposure apparatus is provided having a light path for directing an optical pattern of a display image from an image display means to a photosensitive material and a light path for directing an optical pattern of a negative image from a negative film to the photographic material, which are selectively switched from one to the other to project each of the display and negative images on to the photosensitive material in a common exposure station.  In particular, the apparatus includes a mirror disposed turnably across and between the two light paths, and a mirror driving means for turning the mirror through a predetermined degree to switch between the light path for projecting the display image and the light path for projecting the negative image.
Patent CA-2176922-C (CA)
Title: Process for the preparation of tenside mixtures
Inventor: FAINGOLD SAMUIL
IPC: C09K23/00
Filed: 1993-11-17
Granted: 2005-05-17
Abstract: The object of the present invention is a process for preparing a tenside mixture according to which contains an alkali metal salt of alkyl sulfonic acid, and optionally an alkali metal salt of ethoxylated alkyl sulfate is treated with an excess of concentrated sulfuric acid so that the temperature of the mixture does not exceed aprr. 35 °C, the reaction mixture is let to separate into two layers, the layer containing organic acids is separated and neutralised with di- and/or triethanolamine in order to prepare the di and/or triethanolamine in order to prepare the di-and/or triethanolamine salts of the said acids, and optionally water and convential additional agents and adjuvents are added. The starting mixture can, according to an advantageous embodiment, contain also other tensides and additional components.
Patent CA-2177189-C (CA)
Inventor: ROHRBAUGH DAVID J
IPC: E02F3/28
Filed: 1996-05-23
Granted: 2001-10-23
Abstract: Disclosed herein is a miniature, portable, self-contained power machine for handling materials, comprising, a rigid frame providing the base structure for all components  of said machine, a means of electrical power supply for said machine, means for regulating the motion of said machine, two endless roller chains forming a traction system and serving as the means to move said machine over various types of terrain, means for readily receiving and rigidly securing a variety of miniature, hydraulically  powered material handling  implements to said machine, and a central hydraulic system which is powered by said power supply means and which supplies power to said attachable material handling  implements. The machine has a diversity of applications in numerous industries. The machine accepts any of a variety of attachable  implements through an assembly socket and a torque arm socket, and then links the implement to the central hydraulic system with hydraulic hoses leading to a hydraulic power manifold. Two of these implements include a telescoping boom and bucket assembly and an improved forward reach and higher lift capacity bucket assembly. A hydraulically powered dumping bed attachment may be bolted to the rigid frame of the machine and further modified to result in a hydraulically powered dumping bed and hopper attachment.
Patent CA-2182440-C (CA)
Inventor: JOHNSON JEFFREY DON
IPC: B23K26/02
Filed: 1996-07-31
Granted: 2006-04-25
Abstract: Pressure feet for association with a laser welder head to apply pressure as closely as possible to workpieces adjacent the welding zone whereby maximum weld penetration and quality are achieved. Welding pressure feet includes roller means engagable with the uppermost portions of the workpiece serving to define a desired width of welding zone. The provision of inclined roller means facilitates the achievement of a welding zone of minimal width.
Patent CA-2182965-C (CA)
Inventor: HARKE STEFAN
IPC: C08L33/12
Filed: 1995-03-04
Granted: 2007-09-04
Abstract: To improve the resistance to scratching of plastic molded articles comprising a polymer matrix filled with inorganic fillers, the filler content being 50 to 90 % by weight in relation to the filled matrix, it is suggested that the filler comprise two filler fractions (a) and (b), wherein the filler fraction (a) has a particle size distribution with 98 % by weight of the particles having a particle size <= 150 µm and is distributed essentially uniformly in the polymer matrix, and wherein the filler fraction (b) comprises particles having a particle size of approximately 300 µm to approximately 3000 µm, wherein the proportion of the filler fraction (b) is approximately 1 to 35 % by weight of the total filler content, and wherein the proportion of the filler fraction (b) in an outer surface layer of the molded article is enriched to at least 30 % by weight in relation to the total mass of the filled matrix.
Patent CA-2186753-C (CA)
Title: Catheter convertible from rapid exchange mode to over the wire
Inventor: ANDERSEN ERIK C
IPC: A61F2/958
Filed: 1995-03-23
Granted: 2006-06-20
Abstract: A stylet (26) and hub (36) assembled for stiffening a catheter (10) in rapid exchange mode. The catheter guidewire lumen (20) has a side port (22) associated with a bi-stable guide element (24) that lies across the lumen. A disengageable feature assembly (38) limits insertion of the stylet into the lumen in rapid exchange mode. To convert from rapid exchange mode, disengagement of the disengageable feature enables the stylet to displace the guide element, clearing the guidewire lumen and enabling guidewire or other device to extend throughout the lumen. The stylet has a long proximal portion (34), a relatively short portion (32) tapering distally to a smaller diameter, and enlarged end (34). The guide element is formed by plastic deformation of the catheter wall. The disengageable feature is in a removable housing (28) having an end cap (54) that can be replaced with a syringe for flushing liquid along the stylet. A balloon (12), preferably a PTCA balloon, is mounted on the catheter.
Patent CA-2188043-C (CA)
Title: 7,11 disubstituted camptothecin derivatives, formulations containing such derivatives and their use
Inventor: HAUSHEER FREDERICK HERMAN
IPC: A61K31/4745
Filed: 1995-03-31
Granted: 2009-02-24
Abstract: The novel compounds 11 hydroxy 7 ethyl camptothecin (compound 1) and 11 hydroxy 7 methoxy camptothecin (compound 2) (11,7 HECPT and 11,7 HMCPT) are active anticancer compounds which are poorly soluble in water. The present invention also claims 11,7 HECPT and 11,7 HMCPT) compositions, the synthesis of 11,7 HECPT or 11,7 HMCPT, the methods of formulation of 11,7 HECPT or 11,7 HMCPT, and the methods of use of 11,7 HECPT or 11,7 HMCPT. Additionally, the claimed invention is directed to novel dosages, schedules, and routes of administration for both the 11,7 HECPT or 11,7 HMCPT formulations to humans with various forms of cancer, Other embodiments of this invention include isolation methods and methods of synthesis of certain camptothecin derivatives.
Patent CA-2188905-C (CA)
Title: Process for the preparation of dihaloazolopyrimidines
Inventor: KRUMMEL GUENTHER
IPC: C07D487/04
Filed: 1996-10-25
Granted: 2005-12-06
Abstract: An effective and efficient process for the preparation of a dihaloazolopyrimidine having the structural formula (see formula I) In this process, a malonic acid ester is reacted with a heterocyclylamine to form an intermediate salt, which optionally may be acidified to form a dihydroxyazolopyrimidine; the salt or the dihydroxyazolopyrimidine is then halogenated.
Patent CA-2192968-C (CA)
Title: Container and tags
Inventor: CARLSON ARTHUR RICHARD
IPC: A47G29/00
Filed: 1995-06-13
Granted: 2007-08-28
Abstract: A container having a removable indicator tag (10, 36, 50, 64, 76, 84, 102, 124, 156, 170, 190, 206 and 220) which is releasably attachable thereto. The tag can be attached to a peripheral rim (12), pedestal (34), lid (44), under a peripheral rim (154) or to the sidewall (226).
Patent CA-2193722-C (CA)
Title: Aqueous fatty alcohol dispersions
Inventor: WOLLENWEBER HORST-WERNER
IPC: C09K23/00
Filed: 1995-06-12
Granted: 2004-03-09
Abstract: An aqueous fatty alcohol dispersion containing: (a) 5% to 40% by weight of a C10-C28 fatty alcohol; (b) 0.5% to 5% by weight of anionic interfacially active compounds; (c) 0.5% to 5% by weight of nonionic interfacially active compounds comprising the reaction products of ethylene oxide with alkane-1,2-diols containing 6 to 18 carbon atoms, and (d) the balance, water. The dispersion is useful as an antifoam agent.
Patent CA-2195170-C (CA)
Title: Rotary atomizing electrostatic coating apparatus
Inventor: YAMASAKI ISAMU
IPC: B05B12/14
Filed: 1997-01-15
Granted: 2000-09-19
Abstract: A rotary atomizing electrostatic coating apparatus includes an atomizing head having bores for self-cleaning the atomizing head, a center nozzle, and surrounding nozzle or nozzles.  In the apparatus, an intersection of paint expelled from the paint nozzle or nozzles with the rear surface of the hub is offset from the rear openings of the bores.
Patent CA-2200486-C (CA)
Title: Procede de delignification et de blanchiment de pates a papier chimiques
Inventor: DEVIC MICHEL
IPC: D21C9/10
Filed: 1997-03-19
Granted: 2002-01-15
Abstract: L'invention concerne un procédé de délignification et de blanchiment de pâtes à papier chimiques comprenant une ou  plusieurs  étape(s)  de  traitement  par  le  peroxyde d'hydrogène, à une température supérieure à 100~C et sous pression élevée en présence d'un polymère et d'un composé A choisi parmi l'hydroxyde de potassium, l'hydroxyde de sodium et les carbonates d'un métal alcalin ou alcalino-terreux.  Ce procédé permet d'obtenir une pâte fortement blanchie ayant conservé un bon degré de polymérisation.
Patent CA-2203727-C (CA)
Inventor: TREF JEAN-PIERRE
IPC: B01J8/00
Filed: 1997-04-25
Granted: 2006-10-24
Abstract: Homogenous charging of particles of solid catalyst (6) into a tubular reactor containing vertical tubes (2) opening at their top through a perpendicular tube plate (3) which reunites them, uses a charging system which ensures a homogenous rain of particles onto the whole surface of the plate. Around the periphery of the plate a first cylindrical wall (11) with a diameter similar to that of the plate is placed so all the charging orifices of the tubes are inside. The particles are charged homogenously within this cylinder until the tubes at the perimeter of the tube plate and near the cylindrical wall are full. A second cylindrical wall with a smaller diameter is placed on the tube plate so the tubes which are full are outside the second wall and those which are not are inside it. The homogenous distribution is restarted until the tubes nearest the second cylinder are full, and the cycle is repeated with diminishing diameter cylinders each time separating the full tubes from those which are not. Also claimed is a device to carry out the above process using a series of cylindrical walls of diminishing diameters to fill the tubes successively from periphery to centre.
Patent CA-2203819-C (CA)
Title: Blood extraction device having a holder and a sharpened-end cannula
Inventor: FARBER HORST
IPC: A61B5/15
Filed: 1997-04-25
Granted: 2005-09-13
Abstract: A blood extraction device has a holder with a hollow needle cannula anchored therein. A rear end portion of this cannula is surrounded by a closed-end elastic hose like valve rubber tube with an air gap between the tube and the cannula.      With a minimum of effort and cost a reliable anchorage of the valve rubber tube in the holder is obtained by pressing a clamping member within the holder against the exterior of the valve rubber tube and thereby plastically deforming this clamping member.
Patent CA-2204772-C (CA)
Title: Fibres vitreuses manufacturees
Inventor: GULDBERG MARIANNE
IPC: D03D13/00
Filed: 1995-11-08
Granted: 2007-09-18
Abstract: Des fibres vitreuses manufacturées ont une solubilité à un pH 4,5 d'au moins 20 nm par jour et une viscosité de fusion de 10 à 70 poises à 1400  DEG C, et sont obtenues à partir d'une composition comprenant 18 à 30 % en poids d'Al2O3.
Patent CA-2206126-C (CA)
Inventor: HODJAT YAHYA
IPC: B23P15/14
Filed: 1997-05-26
Granted: 2006-04-11
Abstract: A hub that is integral to a disc and with an integral collar that defines a blind bore of the hub.
Patent CA-2208976-C (CA)
Inventor: BONE DAVID
IPC: E02B17/00
Filed: 1996-11-05
Granted: 2001-09-04
Abstract: Apparatus for providing an offshore drilling operation in a sea, the apparatus comprising a drilling derrick support structure (2) having a base (4) to rest on the sea-floor (5) and a deck (7) to support a drilling derrick (1), the structure being in the form of a concrete block (2) having a hollow cavity to enable the block (2) to be floated to the site where drilling is to take place and being adapted to receive ballast into the cavity in such a way and in a sufficient quantity as to cause the block (2) to sink base-first and rest upon the sea-bed with the deck (7) clear of the surface of the sea, a drilling derrick (1) for mounting on the deck (7) of the block (2) and a tender assist barge (3) for transport to the site in down to 2m of water to provide services, supplies and equipement to the drilling derrick (1).___________________________________________________________________________ _______
Patent CA-2214895-C (CA)
Title: Improved pharmaceutical composition comprising fenofibrate
Inventor: SHERMAN BERNARD CHARLES
IPC: A61K31/216
Filed: 1997-09-19
Granted: 1999-04-20
Abstract: The bioavailability of fenofibrate is improved by making a solid dispersion of adisentegrant in the fenofibrate. Method of making said solid dispersion comprising melting the fenofibrate, blending the disintegrant into the melt, and resolidifying the mixture.
Patent CA-2220210-C (CA)
Title: Systeme de conditionnement de gaz d'echappement diesel
Inventor: ROHRBAUGH DAVID
IPC: F01N3/30
Filed: 1997-11-04
Granted: 2001-07-31
Abstract: Système de conditionnement de l'échappement diesel conçu pour éliminer les polluants gazeux et particulaires nocifs de l'échappement du moteur diesel tout en abaissant la température du gaz d'échappement et de la chemise entourant les composants de régulation de la pollution faisant partie du dispositif. Ce système comporte au moins un convertisseur catalytique combiné à un filtre à particules, construit en vue de fonctionner à une température suffisamment élevée pour convertir les polluants potentiellement nocifs en substances inoffensives, tout en rassemblant et en oxydant les particules de carbone et d'hydrocarbure dans l'échappement diesel afin de les convertir en substances inoffensives. Le convertisseur catalytique est installé dans un contenant isolé pour qu'il conserve la chaleur produite par les réactions catalytiques, l'isolation permettant d'abaisser la température extérieure du contenant. Une chemise entoure le contenant et les autres composants, et un ventilateur axial fait circuler l'air ambiant entre le contenant et la chemise pour faire baisser la température extérieure de la chemise jusqu'à un niveau acceptable. L'air ambiant se mélange au gaz d'échappement au niveau de l'extrémité en aval du système pour abaisser également la température des gaz d'échappement jusqu'à un niveau acceptable. Ce système est conçu en particulier pour pouvoir être utilisé en combinaison avec des moteurs diesel dans des milieux fermés, comme dans l'industrie minière souterraine, mais on peut également l'adapter à des moteurs diesel utilisés dans d'autres milieux. On peut d'autre part utiliser une chemise sans soudure et anti-déflagrante dans les milieux où il existe des risques d'explosion, comme lorsqu'on est en présence de gaz et de poussière susceptibles d'exploser, dans une mine souterraine.
Patent CA-2228091-C (CA)
Inventor: HURME TAPIO
IPC: A23G4/00
Filed: 1996-07-26
Granted: 2002-03-12
Abstract: A preparation used in dental care to protect the teeth, which preparation is anhydrous, with the possible exception of crystal water, and by structure, for example a powder, solid tablet or other anhydrous compositions. The preparation contains a remineralising component, pH buffer component, xylitol and fluoride. Due to the effect of the water contained in the saliva or water added otherwise, the compounds in the preparation react with each other so as to bring about both a remineralisation reaction correcting cavity formation in the teeth, and a pH buffering reaction prevention cavity formation in the teeth.
Patent CA-2228673-C (CA)
Inventor: ROBERTS DAVID JAMES ALEXANDER
IPC: F16B25/00
Filed: 1998-02-03
Granted: 2001-11-06
Abstract: A screw threaded fastener (103) has an elongate shank (122) with a drilling tip (104) at one end and a head (123) at the other end. A screw thread extends along at least a part of the length of the shank. The trailing flank (116) of the thread subtends an angle relative to the axis of the fastener which approaches 90° and is greater than the angle subtended by the leading flank (115). The screw is for use in fixing sheets of material to thin metal battens (5) and the angle between the trailing flank (116) and the adjacent thin metal section (18) of the batten, being reduced in comparison to a conventional thread form, lessens the distorting effect of the thread on the batten under relatively high pull-out loads.
Patent CA-2238858-C (CA)
Inventor: ROSE MARK D
IPC: H04B17/40
Filed: 1998-05-27
Granted: 2000-11-21
Abstract: A radio communications system is intended for use by trains in a tunnel. This system includes an antenna subsystem which incorporates a radiating coaxial cable disposed along the length of the tunnel and extending beyond the portals thereof, including surface coverage for transition. Plural bi-directional, in-line amplifiers are inserted along the length of the radiating coaxial cable at predetermined intervals for amplifying the RF  signals carried by the radiating coaxial cable. A monitoring repeater and a control repeater are provided along with an interface for joining the two repeaters to the radiating coaxial cable. A monitoring subsystem includes an end-of-train device and a head-of-train device. A  control subsystem includes the control encoder located in a lead locomotive for encoding control input signals for the lead locomotive, a control transmitter for transmitting the encoded control signal to other locomotives, and a control receiver located in each other locomotive for receiving the encoded control signal.
Patent CA-2242082-C (CA)
Title: Process for producing a cutting die
Inventor: MCGREGOR GAVIN
IPC: B23P15/40
Filed: 1998-06-30
Granted: 2003-02-18
Abstract: A process for producing a cutting die having a metal base which carries a sharpened ridge extending along a predetermined path thereon, in which a supply of powdered metal and a laser beam are moved along the path so as to surface melt a thin layer of the metal base with the metal powder and thus form a band of fused metal powder along the path, this step being repeated to form additional layers metallurgically bonded to the base and to each other, until a ridge of metal is formed. The ridge is then sharpened to suit it for use in cutting. The ridge may have a top surface of harder material than the inner part of the ridge. The laser and powder delivery movements may be controlled by a CNC (computer numerical control) motion system. The invention includes novel dies produced by this process.
Patent CA-2244478-C (CA)
Title: Wavelength-selective and loss-less optical add/drop multiplexer
Inventor: FATEHI MOHAMMAD T
IPC: H04B10/296
Filed: 1998-08-06
Granted: 2002-05-28
Abstract: A loss-less, optical add/drop multiplexer according to the present invention includes a rare earth-doped fiber amplifier integrated with a wavelength-selective fiber path coupled between two directional optical transfer devices for selectively adding and dropping optical signals from a multi-wavelength signal, such as a wavelength division multiplexed optical signal. One or more fiber gratings are disposed along the length of the rare earth-doped fiber amplifier or between segments of the rare earth-doped fiber so that at least one grating is used for reflecting each optical signal that is expected to be added to or dropped from the multi-wavelength optical signal. By using this configuration, appropriate amplification is provided to compensate for losses in the add, drop, and throughpaths.
Patent CA-2259221-C (CA)
Title: Equipement pour machines a coudre du type a surjeter, permettant d'obtenir une couture plate lors de l'assemblage de pieces en tissu maille extra-fin, notamment pour bas, collants(panty) et similaires
Inventor: MARCHETTI LUIGI
IPC: D05B63/00
Filed: 1997-04-09
Granted: 2007-07-31
Abstract: Equipement combinant une aiguille double (15, 17) recevant deux fils d'aiguille (F1, F2); un boucleur supérieur (30) recevant un fil de boucleur (F3), et un écarteur inférieur (31); une plaque à aiguille (36) pourvue de deux fentes (38, 40) pour les aiguilles (15, 17) et le presse-mailles (42) sur la ligne de coupe (T) présentant une largeur accrue (D); ainsi qu'un bras tire-fils (25) tirant une plus grande quantité de fil (F3) pour le boucleur à chaque course angulaire.
Patent CA-2261381-C (CA)
Inventor: MIERZWINSKI EUGENE P
IPC: G01P3/488
Filed: 1999-02-10
Granted: 2003-05-20
Abstract: A transducer is provided which produces electrical pulses whose amplitude is constant, but whose frequency varies as a function of the rotational speed of a shaft. In addition, the number of pulses per revolution can be selected at the time of assembly by changing a single component. The number of pulses per revolution can be from 1 to 45. This transducer is housed in a compact die-cast aluminum housing suitable for applications as a vehicle, and for distance measuring. The housing has first and second apertures running transverse to each other and merging with each other in the housing, the first aperture receiving a tube having an open portion and an outer peripheral wall thereof. A Hall-Effect sensor is received in the tube so that the Hall-Effect sensor is positioned adjacent the open portion of the tube. The second aperture receives a rotatable shaft having a body with sensible elements thereon, the body being positioned to lie adjacent the Hall-Effect sensor. A first support member is received in the aperture to position and rotatably support a first end of the shaft, an opposite shaft second end being received in a second support member in the second aperture. The shaft second end has a coupling mechanism to couple to a coupling member for rotationally coupling the body to a rotating member whose speed is to be determined.
Patent CA-2261804-C (CA)
Title: Improved products and methods for the remineralization and prevention of demineralization of teeth
Inventor: WINSTON ANTHONY E
IPC: A61K8/365
Filed: 1997-08-26
Granted: 2003-12-16
Abstract: Improved one-part and two-part liquid products such as, e.g., mouthwashes, mouthrinses, toothpastes, gels and the like, for remineralizing subsurface lesions and/or mineralizing exposed dentin tubules in teeth contain a cationic component, an anionic component and a separating means for separating the cationic and anionic components. T he anionic component contains water-soluble phosphate and fluoride salts, while the cationic component contains at least one partially water-soluble calcium salt and preferably at least one water-soluble salt of a divalent metal other than calcium. The tooth is treated with a mixed aqueous composition formed by mixing the cationic and anionic components with water and/or saliva. The mixed aqueous composition has a pH of from about 4.0 to about 10.0 and, in addition to dissolved calcium cations and dissolved phosphate and fluorid e anions, contains a quantity of undissolved calcium salt. The use of the partially water-soluble calcium salt delays precipitation of the cations and anions in the aqueous composition until after the ions have diffused through the tooth surface to the subsurface and/or dentin so a s to effect remineralization and/or mineralization, respectively.