baber/WOPTO huggingface dataset:
Patent CA-2230294-C (CA)
Inventor: AZENKOT YEHUDA
IPC: H04H20/82
Filed: 1996-07-25
Granted: 2002-11-26
Abstract: A method and apparatus for carrying out synchronous co-division multiple access (SCDMA) communication of multiple channels of digital data over a shared transmission media (1162). The system includes modems at remote units (1164) and a central unit (1160) to receive time division multiplexed digital data arranged into timeslots or channels and uses orthogonal codes to encode each channel of multiple data and spread the energy of each channel data over a frame of data transmitted in a code domain. Frames are synchronized as between remote (1164) and central units (1160) using a ranging scheme which is also useful in any other system transmitting data by frames in a distributed system where synchronizing the frames as between all units regardless of differences in propagation delays is necessary. Each frame in the SCDMA modulation scheme includes a gap or guardband containing no other data.
Patent CA-2241655-C (CA)
Inventor: GARCIA-RAMIREZ RAFAEL
IPC: H02G15/04
Filed: 1996-01-22
Granted: 2007-06-19
Abstract: A cable end seal for a multiple-conductor oil filled cable (10) includes an inner sealing boot (18) adjacent the cable and filled with an oil restraint material (24) for the temporary restraint of cable oil and an outer boot (28) and cylindrical mold (26) filled with hardenable material (38) for the permanent containment of the cable oil. The inner boot (18) and oil restraint material (24) prevents contact between the oil and the material (38) at least until the material (38) has hardened.
Patent CA-2245676-C (CA)
Title: Repeater for transmission system for controlling and determining the status of electrical devices from remote locations
Inventor: HOUGGY DAVID E
IPC: H04B3/54
Filed: 1997-02-05
Granted: 2005-01-25
Abstract: This disclosure relates to a repeater (40) for use in a two-way communicatio n system for retransmitting information between a first device (20, 30) and a second device (50) to help ensure reliable two-way communication between the devices, the repeater (40) comprises a transmitter/receiver, the transmitter/receiver receiving information in signals from the first and second devices and transmitting the received information in signals for reception by the respective second and first devices and wherein further a direct communication path for the information between the first and second devices is provided, the direct communication path being intermittently unreliable. The first device (20, 30) comprises a master unit, the plurality of second devices (50) comprise control devices for controlling respective electrical devices.</SDO AB>
Patent CA-2246233-C (CA)
Inventor: MERCHAK PAUL A
IPC: C09B29/33
Filed: 1998-08-27
Granted: 2009-05-26
Abstract: Orange azo fluorescent pigments and a process for a preparing same. Orange azo fluorescent pigments as a component of printing ink, coating, plastic compositions and articles of manufacture and used for controlling manufacturing operations.
Patent CA-2247884-C (CA)
Title: Image display apparatus
Inventor: KUBOUCHI HIDETO
IPC: H04N5/74
Filed: 1997-12-25
Granted: 2004-04-20
Abstract: An image display apparatus including an arc lamp as a white-light source, an ellipsoidal mirror for collecting a light beam from the arc lamp, a color filter for producing sequentially three primaries of light from the white-light beam, a condenser lens for allowing to be transmitted therethrough a light beam transmitted through the color filter, a single spherical mirror or non-spherical mirror for reflecting the light beam transmitted through the condenser lens, a digital micromirror device which receives the light beam reflected from the reflecting mirror and produces on and off states by varying the tilt of a micromirror of each of a number of two-dimensionally arrayed pixels to vary the angle of reflection of the light beam reflected therefrom, and a projection lens which enlarges and projects the light beam reflected from a pixel. The spherical mirror or non-spherical mirror is arranged such that the normal of the mirror at an intersection where the optical axis of an optical illumination module including the arc lamp, the ellipsoidal mirror and the condenser lens intersects the mirror is inclined by a predetermined angle.
Patent CA-2259176-C (CA)
Title: Method and apparatus for testing, completing and/or maintaining wellbores using a sensor device
Inventor: JOHNSON MICHAEL H
IPC: E21B49/10
Filed: 1997-06-24
Granted: 2006-12-12
Abstract: The present invention is an improved method and apparatus for testing and monitoring wellbore operations. The invention is (1) a data acquisition device capable of monitoring, recording wellbore and/or reservoir characteristics while capable of fluid flow control; and (2) a method of monitoring and/or recording at least one downhole characteristic during testing, completion and/or maintenance of a wellbore. The invention includes an assembly within a casing string comprising a sensor probe having an optional flow port allowing fluid flow while sensing wellbore and/or reservoir characteristics. It also includes a microprocessor, a transmitting device, and a controlling device located in the casing string for processing and transmitting real time data. A memory device is also provided for recording data relating to the monitored wellbore or reservoir characteristics. Examples of downhole characteristics which may be monitored include: temperature, pressure, fluid flow rate and type, formation resistivity, cross-well and acoustic sesmometry, perforation depth, fluid characteristic or logging data. With the microprocessor, hydrocarbon production performance may be enhanced by activating local operations in additional associated downhole equipment, e.g., water shut-off operations at a particular zone, maintaining desired performance of a well by controlling flow in multiple wellbores, zone mapping on a cumulative basis, flow control operations, spacing casing and its associated flow ports in multiple zone wellbores, maintaining wellbore and/or reservoir pressure, sensing perforation characteristics, sensing reservoir characteristics or any number of other operations.
Patent CA-2267926-C (CA)
Title: Procede de moulage par injection d'un article mousse
Inventor: CLARKE PETER REGINALD
IPC: B29C45/00
Filed: 1997-10-08
Granted: 2007-03-13
Abstract: L'invention concerne un procédé destiné à former un article par injection de matières plastiques dans un moule, comprenant les étapes consistant à prévoir un outil de moulage (11) qui, fermé, définit une cavité de moulage, l'outil de moulage étant prévu pour être partiellement dilatable à partir d'un volume d'injection (fig. 2) destiné à recevoir une charge de matières plastiques jusqu'à un volume final (fig. 3) plus grand qui détermine la forme finale de l'article formé, l'outil de moulage comprenant au moins un élément mobile (171, 172) prévu pour être retiré afin d'augmenter le volume de la cavité de moulage, la différence entre le volume d'injection et le volume final se traduisant par un vide à l'intérieur de la cavité de moulage lorsqu'on retire l'élément mobile; à fermer l'outil de moulage afin de délimiter le volume d'injection; à injecter dans le volume d'injection un mélange de matières plastiques comprenant un polymère de base et un additif produisant de la mousse; à retirer l'élément mobile (171, 172) en vue de permettre aux matières plastiques de prendre la forme du volume final et à ouvrir le moule pour en éjecter l'article formé fini. Dans ce procédé, on effectue le retrait dans un délai sensiblement court par rapport au remplissage de l'espace d'injection, de sorte que, lors du retrait, il se produit un moussage à expansion rapide dans le vide.
Patent CA-2268100-C (CA)
Inventor: HIBBERT CAMERON REX
IPC: B44F1/12
Filed: 1997-10-08
Granted: 2001-08-21
Abstract: A self-verifying security document, such as a banknote (1) comprises a flexible sheet formed from a plastics substrate (2) bearing indicia (3). The sheet has a window (5) of transparent plastics material which includes self-verification means (11) for verifying a security device (4) provided at a laterally spaced second portion of the sheet when the sheet is bent or folded to bring the window (5) into register with the security device (4). The self-verification means may be an optical lens (11) for reading an area of microprinting (10). In another embodiment, the self-verification means may be an optical filter (21) for viewing an area (22) printed with metameric inks. In other embodiments, the self-verification means and the security device (4) may be polarising windows (31, 32) or Moire inducing patterns (41, 42).
Patent CA-2275810-C (CA)
Inventor: LAPPIN RICK
IPC: E04F13/073
Filed: 1999-06-21
Granted: 2008-05-13
Abstract: A frame for a door or window includes a plurality of frame portions, which may be lineals, and a plurality of corner blocks. For a door frame, three frame portions and two corner blocks are used. For a window frame, four frame portions and four corner portions are used. Each corner block comprises first and second mounting flange portions for attaching the corner block to a surface, such as an exterior wall of a building. First and second channel portions are each attached to a respective mounting flange portion. Each of the first and second channel portions is shaped to engage a respective one of a first and a second frame portions. A cover portion is attached to both of the first and second channel portions. The cover portion has first and second overlap portions which overlap the first and second frame portions, respectively, when the first and second channel portions engage the first and second frame portions. An ornamental "rosette" may be attached to the cover portion of the corner block.
Patent CA-2276589-C (CA)
Title: An apparatus for catalytic distillation
Inventor: CHUANG KARL TZE-TANG
IPC: B01D3/32
Filed: 1998-01-20
Granted: 2007-08-21
Abstract: An apparatus for catalytic distillation consists of altetnatively a catalyst unit and an active liquid distributor tray. The catalyst unit is formed by series of troughs (24) containing catalysts with spaces between adjacent troughs for vapor flow. The active liquid distributor tray (18) is preferably a V-shaped tray formed with collectors that function as both a liquid distributor to deliver liquid at the appropriate locations to the underneath catalyst unit and a mass transfer device. Liquid flows down to the catalyst troughs from bottom of the sump of each collector and vapor flows up through the upper diverging walls of the collector. Packing materials may be placed on the tray (18) or in the spaces between the troughs or both to enhance mass transfer. The catalyst troughs preferably are partitioned to cause the liquid to flow through the catalyst and to overflow the upper rim (34) of the troughs 824) to escape therefrom whereby the catalyst is maintained submerged.
Patent CA-2277076-C (CA)
Title: Mat with integrally molded door
Inventor: CAMPBELL MICHAEL T
IPC: H02G3/22
Filed: 1998-01-15
Granted: 2006-04-04
Abstract: A dash mat (10) for blocking the transfer of sound from the vehicle engine compartment, through the firewall, and into the passenger compartment. The dash mat (10) comprising a planar sheet (12) having a pair of opposed doors (14, 15) aligned with an opening in the firewall through which passes a vehicle accessory.      The doors move between an open position, where the vehicle accessory can be passed through, and a closed position, where the doors (14, 15) seal the vehicle accessory relative to the planar sheet (12).
Patent CA-2278819-C (CA)
Inventor: WILLIAMS JOHN R
IPC: E21B33/08
Filed: 1998-02-04
Granted: 2006-01-17
Abstract: A stripper rubber (16) for oil, gas, water and geo-thermal wells having an interior surface design which includes a circular, convex knee portion (20f) in the throat area (T) of the stripper rubber (16) to provide additional support to the stripper (16) during insertion of a tubular member (15) through the stripper rubber (16). The composition for the stripper rubber (16) includes, in one embodiment, enhanced wear characteristics by the addition of TWARON mixed homogeneously throughout the stripper rubber (16).
Patent CA-2280774-C (CA)
Inventor: SMAL HENRI
IPC: A45D2/00
Filed: 1998-02-13
Granted: 2004-05-25
Abstract: Pince à coiffer (1) comportant des patins chauffants (3 et 5) fixés à l'extrémité de deux branches (11 et 13) d'une poignée (7). Selon l'invention, un élément central (9) de la poignée (7) sert de guide aux branches (11 et 13) qui peuvent se déplacer depuis une position totalement contractée amenant les deux patins chauffants (3 et 5) en contact complet, jusqu'à une position d'écartement maximal amenant les deux branches (11 et 13) en position de contact avec les butées (19) de l'élément central (9), des éléments de ressort (23) assurant en l'absence d'action sur les branches (11 et 13) l'écartement maximal des branches (11 et 13). Utilisation comme défriseur-modeleur permettant à l'utilisateur d'exercer sa dextérité en modifiant la position relative des patins, soit en position parallèle, soit en privilégiant le contact par l'avant ou l'arrière.
Patent CA-2284855-C (CA)
Title: Automatic displacement and homing system for a rail mounted patient lift
Inventor: RODIER SYLVAIN
IPC: A61G7/10
Filed: 1999-10-05
Granted: 2002-01-01
Abstract: A rail mounted patient lift comprises a ceiling mounted rail (12), a carriage (11) mounted for displacement along said rail, power operated drive means (21) for displacing the carriage along the rail, a sling hanger (15) secured to a flexible elongate support element (16), power operated lifting means (25) for extending and retracting the elongate support element relative to the carriage, a manually operable controller (18) and control circuit means (27) for moving said carriage to a selected one of a plurality of different positions (13, 13', 13'', 13''') along the rail in response to a first command signal from the controller.
Patent CA-2286240-C (CA)
Title: Apparatus and method for computing a distribution of spin-spin relaxation times
Inventor: POITZSCH MARTIN E
IPC: G01R33/44
Filed: 1999-10-13
Granted: 2002-01-29
Abstract: The present invention is directed to a method for computing a distribution of spin-spin relaxation times. The spin-echo amplitudes are obtained by hardware integration of the receiver voltages over a time window. A linear operator is utilized to map a relaxation-time distribution to spin-echoes, produce a singular value decomposition (SVD) of the linear operator, determine vectors of the SVD, and compress the spin-echo data using the vectors. To eliminate a telemetry bottleneck, the T2 spectrum is computed downhole and transmitted to the surface.
Patent CA-2289259-C (CA)
Title: Transport lock for forwardly folding agricultural implements
Inventor: FRIGGSTAD TERRANCE A
IPC: A01B69/02
Filed: 1999-11-10
Granted: 2009-01-20
Abstract: An agricultural planter is provided with wing members that fold forwardly from a laterally extending operating position to a compact transport position. The wing members are supported on wheel assemblies when in both the operating and transport positions. A transport lock mechanism is operable to secure the forwardly folded wing assemblies in the transport position against the draw bar. A latch tower having vertically oriented latch retainer bars permit the wing members to move vertically relative to the draw bar without disengaging the transport lock to allow the wing member wheel assemblies to follow ground undulations in the transport position. A wheel lock is also provided to convert the wheel assemblies between a forwardly fixed position used when the wing members are in the operating position and a castering position that enables the wing members to move into the transport position. A wing latch actuator interconnects the transport lock mechanism and the wheel lock mechanism to effect operation thereof in a coordinated manner.
Patent CA-2289750-C (CA)
Inventor: BORZI ENZO
IPC: A47H13/00
Filed: 1998-11-24
Granted: 2006-08-22
Abstract: The anti-friction device for the sliding of cloth rings (A) of curtains, pelmets (M) and similar according to the present invention consists of a shaped element (1) out of wood, metal, plastic or other material, corresponding to the curving of the lateral surface of the support (B), provided with means (2, 3) for the application into the interna l upper portion (SSI) of each cloth ring (A), so as to be arranged between said ring (A) and said support (B), thus helping the reciprocal sliding.
Patent CA-2291425-C (CA)
Title: Filtered electrical connector with multiple ferrite members
Inventor: PAVLOVIC SLOBODAN
IPC: H01R13/719
Filed: 1999-12-01
Granted: 2008-04-15
Abstract: An electrical filter connector having a housing, electrical contacts, and ferrite hoods. The ferrite hoods separately surround portion of individual respective ones of the contacts. The housing can be over-molded onto the contacts to function as a strain relief for conductors attached to the contacts.
Patent CA-2297881-C (CA)
Inventor: JOHNSON STEPHEN D
IPC: B62D6/00
Filed: 2000-02-03
Granted: 2009-11-24
Abstract: A system is provided for use on a vehicle (10) which allows the relative angle of turn between a first steerable wheel (20) and a second steerable wheel (22) to be established by use of a tie rod assembly (32) which is variable in length. The tie rod assembly (32) includes a hydraulic cylinder assembly to vary the length by introducing or removing pressurized hydraulic fluid. A spring (120) is provided to establish a predetermined length to the tie rod assembly should the hydraulic system fail. The length of the tie rod assembly is controlled by an electronic control (166) which is provided with data from angle sensors (160,162) at each of these steerable wheels. The electronic.control can be provided with an electronic table of relative angles for the wheel members and can adjust the length of the tie rod appropriately. The device allows for establishing the desired relationship between the wheel members at any turn angle. Further, the system can provide continuously accurate Ackerman steering angles between the wheels for all conditions of vehicle operation, including vehicle wheel base, vehicle track, axle weight and vehicle speed.
Patent CA-2297958-C (CA)
Title: Procede de pretraitement de matieres contenant des fibres de lignocellulose utile pour procede de fabrication de pate a papier
Inventor: SABOURIN MARC J
IPC: D21B1/30
Filed: 1998-07-16
Granted: 2005-09-20
Abstract: L'invention concerne un procédé et un appareil servant à prétraiter ou conditionner une matière de charge contenant des fibres de lignocellulose qu'on prépare en vue de la transformer en pâte à papier. Des copeaux de bois sont prétraités dans des conditions de température, de pression et d'humidité élevées, et sont ultérieurement comprimés pour provoquer une destructuration des fibres de la matière de charge. Les copeaux de bois prétraités sont ensuite transformés en pâte à papier à l'aide de procédés tels qu'un procédé de pâte mécanique de défibreur ou un procédé de cuisson chimique.
Patent CA-2307211-C (CA)
Inventor: MELBOURNE KEITH
IPC: F02M67/04
Filed: 1998-10-20
Granted: 2007-03-13
Abstract: An internal combustion engine and a method of operating said engine, the engine having a plurality of cylinders each respectively supporting a piston therein, a fuel injection system including a plurality of selectively operab le delivery injector nozzles, and a gas supply system for supplying gas to the delivery injector nozzles, each delivery injector nozzle arranged to respectively deliver fuel by way of said gas directly into a said engine cylinder, the method including opening the delivery injector nozzles of a first said cylinder and a second said cylinder such that gas within the first said cylinder is transferred through the delivery injector nozzle thereof and into the gas supply system resulting in gas being supplied to the delivery injector nozzle of the secon d said cylinder to thereby effect the delivery of fuel by way of the gas to the second said cylinder.
Patent CA-2309916-C (CA)
Title: Ultrasonic system for grading meat
Inventor: BOND LEONARD J
IPC: A61B8/00
Filed: 1998-11-10
Granted: 2007-10-09
Abstract: An ultrasonic system for grading meat (10) transmits an ultrasonic signal (20) into the meat (10) and detects the resulting back-scattered signal. The envelope of the back-scattered signal is determined. A decaying exponential curve having the form y - exp(-Dt) is fitted to the envelope, where D is the attenuation factor for the curve and t is time. A  grade of the meat (10) is then determined as a function of the attenuation factor. The accuracy of this approach can be improved by measuring the total back-scattered energy from the back-signal and generating a grade for the meat (10) based on a polynomial function of both the attenuation factor and the total back-scattered energy.  Accuracy can be further enhanced by removing any anomalies in the back-scattered signal resulting from fat deposits in the meat (10) before calculating the attenuation factor.
Patent CA-2319990-C (CA)
Inventor: KAO CHENG-KANG
IPC: C09J7/20
Filed: 2000-09-20
Granted: 2008-11-18
Abstract: A process for manufacturing easily portable and multi-layered adhesive tape roll is described. The flat piece of easily portable and multi-layered adhesive tape is formed by compressing the adhesive tape roll having circular shape or other shapes.  The adhesive tape roll is compressed and cohered during the compressing step. A  stiff interfacial layer, for example, having adhesion by adhering two innermost adhesive surfaces, by providing a stronger adhesion material, by inserting a stiff and solid material, or a stiff and solid material coated with a strong adhesion material, is applied to the symmetry plane of the adhesive tape during the compressing step. The preferential material of the high adhesion material is a cyanoacrylate adhesive or an epoxy adhesive.
Patent CA-2320660-C (CA)
Title: Composition for peelable coating
Inventor: MATSUYAMA NORITSUMI
IPC: C08L51/00
Filed: 2000-09-26
Granted: 2008-02-19
Abstract: A composition for peelable coating, which composition exhibits excellent properties such as film-formability and water resistance and can be dried at ambient temperature without any particular heating, to thereby provide excellent coating performance. The composition contains a core/shell copolymer including an acrylic copolymer portion A having a high glass transition temperature of 30°C-70°C and an acrylic copolymer portion B having a low glass transition temperature of 5°C to -30°C and being formed through multi-step polymerization. The core/shell copolymer is made up of 5-40 wt.% of the acrylic copolymer portion A and 60-95 wt.% of the acrylic copolymer portion B, on the basis of the total amount of the portion A and the portion B. The acrylic copolymer portion A and the acrylic copolymer portion B contain the same hard-polymer-providing monomer unit and soft-polymer- providing monomer unit. Each copolymer portion contains a hard-polymer-providing monomer unit and a soft-polymer- providing monomer unit in a total amount of 70 wt.% or more.
Patent CA-2322208-C (CA)
Inventor: HAYASHI KEIKO
IPC: B05B9/04
Filed: 2000-01-04
Granted: 2008-05-20
Abstract: L'invention concerne un dispositif générateur d'aérosol, de petite dimension, d'usage facile et conçu pour que, lors de son placement sur le sol, d'une certaine façon, le contenant (11) d'aérosol comprenant une tige (12) soit difficile à renverser; ce dispositif est caractérisé en outre en ce qu'il comprend un élément de commande (208) de la tige (12) et un orifice de propulsion (207), vers l'extérieur, de l'aérosol injecté dans la tige (12) et contenu dans celle-ci, cet orifice (207) étant conçu pour propulser l'aérosol dans une direction qui s'éloigne de la position de commande de l'élément de commande (208).