baber/WOPTO huggingface dataset:
Patent CA-2178882-C (CA)
Inventor: SOICHI IWAMURA
IPC: H03F3/26
Filed: 1996-06-12
Granted: 2003-04-15
Abstract: Magnetic recording device and method are provided.  The magnetic recording device includes a shaping driver for positive and negative signals whose polarities are reversed, corresponding to the digital information, a push-pull portion for generating a recording current corresponding to the positive and negative signals and generating a transient pulse current during reversal of the polarity of the recording current, and a current switch for switching a current flowing through the push-pull portion in response to the positive and negative signals.   The digital signal is recorded on the magnetic recording medium on the basis of the transient pulse current.  Therefore, without an additional recording equalizer, rise characteristics of a head current is improved and the demand of small-size and low-power is satisfied.  In addition, since the magnetic recording device employs a compensation signal generator for compensating for a variation of the instantaneous value of a recording current caused by use of a rotary transformer, rise characteristics of the recording current during switching the polarity of the recording current can be maintained to be stable.
Patent CA-2183787-C (CA)
Inventor: LAVIEVILLE JEAN-PAUL
IPC: H02M3/07
Filed: 1995-12-28
Granted: 2004-02-17
Abstract: The multilevel convertor includes capacitors (C1,C2...,Cn) for each of its cells. The capacitors have nominally charge voltages proportional to their row in the convertor. The convertor also includes devices (VMO1,VMO2...,VMOn) designed to evaluate the average voltage at the terminals of each of the capacitors (C1,C2...,Cn), and devices (VE1,VE2...,VEn) for monitoring, for each of the capacitors (C1,C2...,Cn), the eventual difference between the evaluated average charge voltage and the nominal average voltage of the capacitor, and to provide a corresponding difference signal (VEC1,VEC2...,VECn). The convertor also has correction control devices (BT,EC1,EC2...,ECn), receiving the difference signal and controlling as a consequence, a temporary coupling between two capacitors, with the aim of reducing the voltage difference.
Patent CA-2183794-C (CA)
Title: Decorative garland
Inventor: RUFF EDWARD
IPC: A41G1/04
Filed: 1996-08-21
Granted: 2000-04-18
Abstract: A garland comprising an elongated base ribbon and a plurality of annealed metal wires spirally wrapped around the base ribbon member forming a garland having substantially no spring back characteristics.   The garland may include an elongated web film having a plurality of transverse cuts along both longitudinal edges arranged to form a plurality of loops with the annealed metal wire spirally wrapped around the elongated web film loops forming a garland with helically rotated loops about the wires.
Patent CA-2186812-C (CA)
Title: Tank assembly and method for water treatment
Inventor: CHANNELL ALAN B
IPC: B29C49/04
Filed: 1996-09-30
Granted: 2001-04-24
Abstract: The present invention involves a pressurized water treatment system and method having a unitary liner and flange and a plurality of interchangeable heads.  The system utilizes non-threaded connections where periodic detachment is desirable to eliminate the cross-threading problems posed by plastic threads.  The coupling devices include an improved clamp assembly to removably secure the water treatment heads to the liner flange or other system components and an improved spring clip to removably attach inlet and outlet lines to water treatment heads and fittings.  By including L-shaped tabs, the spring clip reduces the chance of inadvertent dislodgement.  The use of common connectors allows any of the interchangeable heads to be used with the liner and other fittings.  Adapters can also be used to allow non-system components to be integrated into the system.  A fill port adaptor can also be disposed between the liner and water treatment head to provide access to the tank interior without the removal of the head.
Patent CA-2191838-C (CA)
Title: High bulk embossed tissue with nesting prevention
Inventor: SCHULZ GALYN A
IPC: D04H1/54
Filed: 1996-04-04
Granted: 2002-03-19
Abstract: An embossed tissue having improved bulk and puffiness while being non-nestin g by having a lattice pattern and at least two signature bosses. More particularly, one of the signature bosses is defined by embossments having a  lower portion which is continuous and an upper portion which is defined by crenels and merlons.
Patent CA-2192608-C (CA)
Title: Filtration and transportable container for processing waste into fuel
Inventor: TIEMEYER ERIC B
IPC: B01D17/00
Filed: 1996-12-11
Granted: 2005-10-11
Abstract: The invention is to a method and apparatus that provide a removable container that functions both as a filtration unit and as a removable and transportable container for transferring fuel from a Filtration Fuel Technology (FFT) process to a fuel receiving facility.
Patent CA-2197683-C (CA)
Inventor: VIOLAY JEAN-MICHEL
IPC: C12N7/00
Filed: 1995-06-06
Granted: 2008-12-30
Abstract: Procédé de préparation d'antigèns grippaux purifiés, à partir d'un liquide contenant le virus grippal, comprenant les étapes de concentration, de purification, de fragmentation et éventuellement d'inactivation caractérisé en ce que: A. <u>ou bien</u> l'étape de purification comporte plusieurs étapes d'ultracentrifugation séparées par une étape de filtration, B. <u>ou bien</u> l'étape de fragmentation est effectuée sur le virus vivant en présence d'un détergent non-ionique amphiphile suivie d'une élimination des substances indésirables par filtration retenant l'ensemble des constituants viraux, <u>ou bien</u> on opère selon ces deux étapes dans un ordre quelconque.
Patent CA-2200309-C (CA)
Inventor: ZIMMERMANN CRAIG E
IPC: A21C11/00
Filed: 1994-09-19
Granted: 2002-01-22
Abstract: Apparatus (10) is disclosed including first and second forming rollers (18, 21) which rotatably abut with an anvil roller (20). The forming rollers (18,  21) each include a periphery forming a continuous forming surface including a plurality of axially and circumferentially spaced grooves (24) each formed a s a continuous depression arranged in a serpentine and non-intersecting manner . Food (14) is simultaneously fed between a continuous strip of support materi al (16) and a continuous ribbon of film material (66) as they pass between a first abutment nip of the first forming roller (18) and the anvil roller (20 ). After extending partially around the periphery of the first forming roller (18), the materials (16, 66) and the food therebetween pass around an adjustable idler roller (70) to between a second abutment nip of the second forming roller (21) and the anvil roller (20). The food (14) compressed upon  the support material (16) by the first abutment nip is in phase with the grooves (24) of the second abutment nip. The film material (66) removes the food (14) from the grooves (24) and can be discarded after passing through t he second abutment nip and prior to the support material (16) being cut to longitudinal lengths and widths between the embossed shapes of food (14).</S DOAB>
Patent CA-2201254-C (CA)
Title: A system for automated interface generation for computer programs operating in different environments
Inventor: STEPHENSON JOHN WRIGHT
IPC: G06F9/46
Filed: 1997-03-27
Granted: 2002-08-20
Abstract: A system for automated interface generation for computer programs operating in different environments. The system comprises a utility which imports a CICS COBOL transaction source file, parses the communication area of the CICS file, and generates modelling information. The modelling information represents the nature and structure of data in the CICS transaction source file, and is written to a persistent data store. The utility uses the information in the persistent data store to generate an application programming interface. The application programming interface takes the data values from the other language and translates them to a formatted CICS COBOL communications area. This format is derived from the definition of the CICS communications area contained in the imported CICS program. After the translation runs, the resulting CICS COBOL communications area is translated back to the data values of the other language. This translation step also handles the data conversion between different codepages and machine architectures and program semantics. The resulting language values represent the result of the transaction. The CICS transaction is accessed using the CICS External Call Interface mechanism.
Patent CA-2204496-C (CA)
Inventor: BRAAT JOSEPHUS JOHANNES MARIA
IPC: G11B7/24041
Filed: 1996-08-29
Granted: 2007-07-31
Abstract: A record carrier is described, which has standard and high-density informati on layers. The standard density layer (2), e.g. in a standard CD format, is positioned at the bottom of a substrate, and is read out through the substrate with a laser beam. The thickness of the substrate is within the CD specification, e.g. 1.2 mm. At least one high - density layer (3) is formed by a material which is (nearly) transparent for the laser wavelength of standard CD players (.lambda. = 780 nm), but is (at least partially) reflective for shorter wavelengths used for high-density discs (.lambda. = 635 nm). To achieve a high density, a smaller track pitch and smaller pits are used in the high-density layer(s). To achieve better reading signals from both layers, the high-density layer i s positioned closer to the side of entrance of the laser beam in the substrate. This enables a higher numeric aperture of the focusing lens and, therefore, a smaller spot for the shorter wavelength. The high-density layer is preferably positioned midway in the substrate e.g. at 0.6 mm, because in that case the high-density layer configuration will be compatible with two-sided high density discs which have a total thickness of 1.2 mm. The information content of the standard layer may be duplicated on the high-density layer, orit may be represented by a different coding scheme.
Patent CA-2214313-C (CA)
Title: Ensemble de conditionnement et d'application de produit liquide ou semi liquide
Inventor: GUERET JEAN-LOUIS H
IPC: B05C17/00
Filed: 1997-09-09
Granted: 2000-01-04
Abstract: L'invention concerne un ensemble de conditionnement et d'application (100) d'un produit liquide ou semi liquide (P) dont les moyens d'essorage (11) comprennent un manchon (12) au travers duquel l'applicateur chargé de produit est amené à passer, ledit manchon (12) étant ouvert en ces deux extrémités et présentant une surface interne apte à retenir par effet de tension superficielle une réserve du dit produit, la force de tension superficielle, s'exerçant entre le manchon et le pr oduit qu'il contient, étant supérieure à la force de tension superficielle, s'exerçant entre l'extrémité libre de l'applicateur et ledit produit.
Patent CA-2214694-C (CA)
Title: Attache a barbele amelioree pour cables
Inventor: WELLS PETER
IPC: B65D63/12
Filed: 1996-04-09
Granted: 2002-01-22
Abstract: Une attache pour câbles (10) comprend une tête (12) ayant un passage traversant allongé et une bande (14) pouvant être insérée dans la tête. La tête porte un barbelé métallique (24) qui s'étend dans le passage pour entrer en contact avec la bande et bloquer celle-ci. Le barbelé comprend une partie encastrée dans la tête et une partie s'étendant depuis celle-ci. On obtient une attache pour câbles présentant une force d'extraction ou de retrait élevée avec une force d'insertion faible, en augmentant d'une manière appréciable la longueur de la partie non encastrée du barbelé par rapport à sa partie encastrée et à l'épaisseur de la bande.
Patent CA-2216668-C (CA)
Inventor: HAYNES MICHAEL JONATHON
IPC: E21B23/00
Filed: 1997-09-23
Granted: 2000-12-26
Abstract: A telescoping joint for use in a conduit connected to a wellhead and supporting downhole well tools to permit the downhole well tools to be axially displaced in the well bore without disconnecting the conduit from the wellhead is described.  The telescoping joint is particularly useful in conjunction with  an  apparatus  for  providing  an  axially displaceable isolated fluid zone in a cased well bore, which is also described.  The telescoping joint and the apparatus are used in conjunction for producing a predominance of a fluid  of  interest  from a  cased well  bore  which  passes through a production zone that yields at least two fluids having different densities.  The telescoping joint may also be  used  in  conjunction  with  other  downhole  tools  for performing a plurality of downhole operations which require axial displacement of the tools in the well bore without disconnection  of  the  conduit  from  the  wellhead.   The advantage  is  the  ability  to  move  downhole  well  tools supported by a conduit such as a production tubing up or down in the well bore without disconnecting the production tubing from the wellhead or removing or adding sections to the tubing string.  This permits many downhole operations to be much more economically and quickly accomplished including the selective production of oil or gas from water-bearing formations.
Patent CA-2224816-C (CA)
Title: Ultrasonic cutting device
Inventor: MICHOUD HENRI
IPC: B06B3/00
Filed: 1996-06-18
Granted: 2006-12-05
Abstract: An ultrasonic cutting device with an ultrasonic generator having a given natural frequency and being coupled to a cutting tool. The cutting tool is a revolving disc (5) and the ultrasonic generator (10, 11) is coupled to a central portion (4) of the disc (5) via a coupling means (30, 40), said central portion (4) being arranged on an amplitude antinode of the ultrasonic vibration generated by the ultrasonic generator (10, 11).
Patent CA-2226443-C (CA)
Title: Tube comprenant au moins 3 couches
Inventor: KARSTEN PETRUS J A
IPC: A61L29/06
Filed: 1998-02-10
Granted: 2005-07-26
Abstract: Tube comprenant: (a) une couche intérieure essentiellement constituée d'un copolyester obtenu à partir d'au moins un poly(alkylène oxyde)glycol, d'acide 1,4-cyclohexane- dicarboxylique et de 1,4-cyclohexane-diméthanol; (b) une couche intermédiaire essentiellement constituée de copolymère éthylè ne- acétate de vinyle et/ou d'un copolymère comprenant au moins un bloc de polyamide et au moins un bloc de poly(alkylène oxyde); (c) une couche extérieure essentiellement constituée d'un copolyester obtenu à partir d'au moins un poly(alkylène oxyde)glycol, d'acide 1,4-cyclohexane- dicarboxylique et de 1,4-cyclohexane-diméthanol. Ce tube peut être avantageusement utilisé dans des applications médicale s.
Patent CA-2229544-C (CA)
Inventor: TAYLOR JOHN E
IPC: C07K/
Filed: 1996-09-04
Granted: 2007-11-20
Abstract: A cyclic peptide analog of somatostatin wherein a disulfide bond links the N - terminus residue and the C-terminus residue.
Patent CA-2230840-C (CA)
Inventor: TISBO THOMAS A
IPC: E01H5/02
Filed: 1998-02-27
Granted: 2005-11-15
Abstract: A user-friendly ice scraper is provided to chop and scrape ice. The sturdy ice scraper has a blade housing which holds an ice scraper blade. The blade housing can comprise a plastic blade holder with flared ribs. Advantageously, the ice scraper has a high strength composite handle with a metal core and plastic sleeve. The handle preferable includes a cap or other handgrip at its upper end.
Patent CA-2231222-C (CA)
Title: Multi-photon laser microscopy
Inventor: XU CHRIS
IPC: G02B21/00
Filed: 1996-09-18
Granted: 2001-12-11
Abstract: A laser scanning micrsocope (10) produces molecular excitation in a target material (14) by simultaneous absorption of three or more photons to thereby provide intrinsic three-dimensional resolution.  Fluorophores having single photon absorption in the short (ultraviolet or visible) wavelength range are excited by a beam (16) of strongly focused subpicosecond pulses of laser light of relatively long (red or infrared) wavelength range. The fluorophores absorb at about one third, one fourth or even smaller fraction of the laser wavelength to produce fluoroscent images of living cells and other microscopic objects. The fluoroscent emission from the fluorophores increases cubicly, quarticly or even higher power law with the excitation intensity so that by focusing the laser light, fluorescence as well as photobleaching are confined to the vicinity of the focal plane. This feature provides depth of field resolution comparable to that produced by confocal laser scanning microscopes, and in addition reduces photobleaching and phototoxicity.
Patent CA-2233527-C (CA)
Title: Pulse amplifier with low-duty cycle errors
Inventor: ANDERSSON BENGT-OLOV
IPC: H03K5/02
Filed: 1998-03-30
Granted: 2002-01-22
Abstract: A low power pulse amplifier with low duty cycle errors. The amplifier provides several differential amplifier stages with a biasing and canceling network. To minimize duty cycle errors for large input signals, cascode transistors are added between the drains of the differential amplifiers and the outputs. The result is an amplifier having a duty cycle error of less than 5% at amplitude input ranges from 5 millivolts to the supply voltage.
Patent CA-2235952-C (CA)
Title: A reclinable outdoor chair
Inventor: VANDERMINDEN ROBERT D SR
IPC: A47C1/028
Filed: 1998-06-29
Granted: 2000-03-28
Abstract: The chair is constructed with a seat frame which is pivotally mounted at a forward end on a support frame.  The rear of the seat frame is interconnected by a linkage to the support frame.  The linkage includes a transverse bar which is manually movable to rest against the support legs of the support frame with the seat frame in an upright position or a reclined position.
Patent CA-2236112-C (CA)
Inventor: CLARK TRACEY A
IPC: A61F13/15
Filed: 1996-10-30
Granted: 2005-10-25
Abstract: A multilayered absorbent feminine hygiene product which is configured for releasable attachment to a user's garment has a plurality of absorbent pads. Each of the absorbent pads has an absorbent layer to contain absorbed fluid and a barrier layer to prevent absorbed fluid from leaking completely through the individual pad. The pads are releasably attached along at least a portion of their lateral edges with a protective material. The protective material protects unexposed absorbent pad layers from soiling by fluid runoff from the exposed pad layer, and it contributes to the attachment strength between the layers during use.
Patent CA-2243912-C (CA)
Title: A liquid jet head, a head cartridge, a liquid jet recording apparatus, and a method for manufacturing liquid jet heads
Inventor: TANEYA YOICHI
IPC: B41J2/175
Filed: 1998-07-27
Granted: 2003-06-24
Abstract: A liquid jet head is provided with a first bubble generating device for enabling a first flow path conductively connected with a first discharge opening to create a bubble for the formation of discharge droplet, and a second bubble generating device for enabling a second flow path conductively connected with a second discharge opening to create a bubble for the formation of discharge droplet, and comprises a substrate having the first and second bubble generating devices on the surface area shared by them for use, an orifice section provided with the first and second discharge openings sequentially in the direction intersecting the sharable surface area of the substrate, and a flow path formation section for separating each path of the first and second flow paths at least from the discharge opening to the bubble generating device thereof, at the same time, arranging at least part of the first and second flow paths to be essentially in the form of laminated layer with respect to the substrate.  With the structure thus arranged, crosswalks are prevented across each line of liquid flow paths, and also, to materialize a liquid jet head capable of making its discharge amount variable for the stabilized discharge of droplets in different amount from the plural lines of discharge openings for recording images in higher precision and quality.
Patent CA-2250533-C (CA)
Inventor: JAVORS RUSSELL
IPC: H04B10/114
Filed: 1998-11-04
Granted: 2001-01-09
Abstract: A "try me" feature is disclosed for remotely controlled devices such as remotely controlled toys for point of sale demonstration or sampling. The invention provides a secondary link between the remote control device and the remotely controlled device. When the secondary link is selected or present, activation of a control on the remote control device will cause the remotely control device to react the same or similar to the way it reacts under wireless remote control alone using the secondary link. In the preferred embodiment, the secondary link includes a disconnectable wired coupling and uses the primary wireless link. The remotely controlled device and the remote control device may be contained in a point of sale package or configured in a point of sale display. In one embodiment, the remotely controlled device has a switch by which the secondary coupling and "try me" operation, or normal wireless remote control operation is selected. When the devices are provided in a point of sale package, the switch is factory set to "try me" operation, which precludes wireless operation in the package via the primary link.
Patent CA-2252673-C (CA)
Title: Hearing aid device
Inventor: BLUMENKRANTZ ENRIQUE MALVAR
IPC: H04R25/00
Filed: 1997-04-14
Granted: 2005-04-05
Abstract: There is provided a hearing aid with a mechanical/electrical input converter and an electromechanical output transducer; a signal processing unit with an input operationally connected to the output of the input converter, wherein the signal processing unit comprises a switched output unit with a switch-over control input and operationally connected to the input of the output transducer and generating a switched, at least two-state output signal, and further comprising a pulse width modulator unit generating a pulse width modulated output signal, the output of the pulse width modulator unit being operationally connected to the switch-over control input of the switched output unit, the pulse width modulator unit comprising a digital control input for controlling pulse width modulation.
Patent CA-2253138-C (CA)
Title: Thermally reflective substrate coating and method for making and applying same
Inventor: SHEERAN MARTIN
IPC: B32B27/30
Filed: 1998-11-06
Granted: 2005-10-18
Abstract: A film wrap coating used to coat both metallic and non-metallic profiles for architectural and/or automotive components including a PVC backing layer which is bonded and at least partially cross-linked to a polyvinyl fluoride (PVF) film layer, and a paint or pigment layer applied to the PVF layer, most preferably, the paint applied to thermally reflective latex paint. The film wrap is formed by aligning a sheet of PVF overtop of a flexible sheet of PVC. Following the alignment of the PVC and PVF sheets, a third layer of paint is then applied to the exposed surface of the PVF sheet and the three layers are heated so that the PVC and PVF sheets fuse to each other resulting in at least partial cross-linking therebetween, and the paint on the pigment layer cures and fuses to the PVF sheet.
Patent CA-2263056-C (CA)
Title: Method and apparatus for finite field basis conversion
Inventor: VANSTONE SCOTT
IPC: H04L9/06
Filed: 1999-02-26
Granted: 2009-04-28
Abstract: A method and systems provided for basis conversion in a cryptographic system. The method comprises the steps of a first correspondent transmitting an element represented in the first basis to an intermediate processor, the intermediate processor converting the element into a second basis representation and forwarding the converted element to the first correspondent who then uses the converted element in a cryptographic operation. A further embodiment of the invention provides for the intermediate processor to perform the basis conversion on a field element and then forward the converted element to a second correspondent. A still further embodiment of the invention provides for the correspondents in a cryptographic scheme making use of a bit string as a function of a sequence of traces of a field element, wherein the bit string is a shared secret for performing certain cryptographic operations.