baber/WOPTO huggingface dataset:
Patent CA-2215850-C (CA)
Title: Method and apparatus for document identification
Inventor: MENNIE DOUGLAS U
IPC: G07D7/00
Filed: 1995-03-08
Granted: 2000-02-15
Abstract: A currency identification system comprising at least two laterally displaced scanheads, one or more laterally moveable scanheads, or at least two laterally displaced sensors of a linear scanhead. The scanheads or sensors are positioned so as to permit scanning along at least two segments on a first side of a bill. The scanheads or sensors are capable of detecting characteristic information from the bill along the segments and generating corresponding output signals representing variations in the detected characteristic information from which scanned patterns of characteristic information may be generated. The system also comprises a pattern generator for generating at least one scanned pattern from the output signals, the scanned pattern representing analog variations in the characteristic information along a segment of the bill. The system also comprises a memory for storing at least one master pattern associated with each genuine bill which the system is capable of identifying, the master pattern representing analog variations in characteristic information along a segment of an associated genuine bill. The system further comprises a signal processor for performing a pattern comparison wherein at least one of the scanned patterns or portions thereof is compared with at least one of the master patterns or portions thereof. The signal processor generates an indication of the identity of the bill based on the pattern comparison when the bill is one that the system is capable of identifying.
Patent CA-2219647-C (CA)
Title: Method for automatically reducing orbit-received carrier acquisition and tracking thresholds
Inventor: ISSLER JEAN-LUC
IPC: H04B7/01
Filed: 1997-03-11
Granted: 2006-05-09
Abstract: A method for automatically reducing carrier acquisition and tracking thresholds for carriers received in orbit by a receiver accessing an orbital navigator inside or outside the receiver, wherein said receiver comprises at least one phase loop. The phase loop is used for carrier acquisition and/or tracking and 'pushed' by a fine speed aid, and compensates for the error between the actual speed and the computed speed. The carrier Doppler frequency search is carried out around a frequency prediction maintained by the fine speed aid from the orbital navigator.
Patent CA-2219841-C (CA)
Title: Cellular extension service
Inventor: ALFRED JOSEPH ANDERSON
IPC: H04W8/26
Filed: 1997-10-31
Granted: 2002-06-25
Abstract: Multiple cellular telephones, each having a unique ESN, share the same cellular telephone number (MIN). Data records at the mobile switching center (MSC) are modified to reflect the parent and extension cellular telephones configuration. Incoming calls are delivered to all telephones sharing a MIN simultaneously, sequentially, or in accordance with a caller's selection. An extension wireless telephone may interrupt a call in progress of another extension wireless telephone. Cellular telephones sharing a MIN may call each other using intercom extension numbers.
Patent CA-2232833-C (CA)
Inventor: DUECK RAYMOND
IPC: B65H49/32
Filed: 1998-03-23
Granted: 2005-02-15
Abstract: The present invention provides a powered carousel for storing spools of wire. The wire carousel comprises an upright support frame having a carousel on the support frame mounting a plurality of carrier frames, each carrier frame has a plurality of removable shafts for mounting spools of wire. Each removable shaft is positively secured by a locking mechanism which positively engages each end of the shaft. This helps prevent a shaft from accidentally coming free from the frame and falling from the carousel possibly causing injury to the individual operating the carousel or to bystanders. To provide for the efficient storage of small spools of wire a removable Ferris wheel is mounted on one or more of the shafts. The Ferris wheel includes a plurality of rods for mounting spools of wire arranged annularly therearound and is mounted for rotation on the shaft. The carrier frames have been improved to further improve access to the spools of wire and to improve the stability of the carrier frames. To do this the connection means for mounting the carrier on the carousel has been positioned below the top of the carrier frame. A bottom member has also been added to each carrier frame to prevent wire from hanging down from the frame and getting snagged on a lower frame, on a shaft on a lower frame, or in the drive chain.
Patent CA-2235167-C (CA)
Inventor: ZILM WILLIAM M
IPC: B62D53/08
Filed: 1998-04-17
Granted: 2005-12-13
Abstract: An extension coupling releasably interconnects a trailer to a tow hitch on a tractor vehicle. The coupling includes a mount that is secured to the trailer. An elongated arm has a proximal end portion secured to the mount. A connector pin is disposed on a distal end portion of the arm in order to mate with the tow hitch. A retainer assembly is secured to the arm and engages the tow hitch when the trailer is interconnected to the tractor vehicle so as to resist rotation of the arm relative to the tow hitch.      The mount includes a flat base plate and a pair of upwardly projecting side plates disposed on the base plate. This mount then engages a hitch connecting station on the trailer. The invention includes a trailer provided with the coupling where the trailer has a housing, a wheel set and the hitch connecting station.
Patent CA-2240161-C (CA)
Inventor: VERRECK GEERT
IPC: A61K9/14
Filed: 1997-05-12
Granted: 2005-05-24
Abstract: The present invention is concerned with novel pharmaceutical compositions of itraconazole which can be administered to a mammal suffering from a fungal infection, whereby a single such dosage form can be administered once daily, and in addition at any time of the day independently of the food taken in by said mammal. These novel compositions comprise particles obtainable by melt-extruding a mixture comprising itraconazole and an appropriate water-soluble polymer and subsequently milling said melt-extruded mixture.
Patent CA-2244847-C (CA)
Inventor: DOTY F DAVID
IPC: G01R33/34
Filed: 1997-03-05
Granted: 2003-06-10
Abstract: The two halves (10, 20) of a conventional RF saddle coil, such as spirals or  other related structures, for use in high resolution NMR or MRI, are dispose d on opposite sides of a cylindrical coilform, and rotated from the convention al orientation 90~ about the B1 axis so that the leads (31, 32) are paralleled near the axial center of the RF coil.
Patent CA-2246990-C (CA)
Inventor: AMSTUTZ PETER
IPC: B25B27/30
Filed: 1998-09-11
Granted: 2001-01-30
Abstract: A spring compressor of the type having a base, a post, upper spring mounting means fixedly mounted on the upper portion of the post, lower spring mounting means slidably mounted on the lower portion of the post, and moving means for moving the lower spring mounting means toward the upper spring mounting means to compress a spring mounted between the spring mounting means. The upper spring mounting means has spring engaging means, preferably in the form of angle iron members, for engaging the top of the spring assembly. The spring engaging means can include stop means for preventing movement of the spring assembly toward or away from the post. In place of the spring engaging means, the spring compressor can have adapters mounted on at least one of the upper and lower spring mounting means to engage portions of the side of a coil of the spring. The adapters can also be combined with the spring engaging means.
Patent CA-2248111-C (CA)
Inventor: BORER TIMOTHY JOHN
IPC: G06T7/20
Filed: 1997-03-03
Granted: 2003-06-17
Abstract: A technique for generating motion vectors in video and film signal processin g using constraint equation based motion estimation. Simplifications of the processing and hardware are made possible by generating motion vectors based  on the normalised constraint equation. The temporal and spatial image gradients are calculated using temporal and spatial differentiators (16, 17,  18). An angle (.theta.) corresponding to the orientation of the spatial imag e gradient vector and the motion speed (vn) in the direction of the vector are  calculated using apparatus including a rectangular to polar coordinate converter (32). .theta. and vn are the parameters of the normalised constrai nt equation.
Patent CA-2248382-C (CA)
Inventor: BARKER DENIS
IPC: H01Q15/12
Filed: 1998-10-08
Granted: 2001-07-03
Abstract: This invention is an easily deployable, expendable or recoverable floating radar reflective device. The invention can be built with sufficient reserve buoyancy to allow the fitting of a number of optional devices, such as a GPS transceiver or lighting. Thus, the device can be used for a variety of applications including: man-overboard marker, radar testing, temporarily marking submerged objects or navigation points, search and rescue, naval gunnery practice and/or weapons testing, or any other application that requires a floating reflective station. The device is constructed of aluminum, and consists of an internally supported tetrahedron shape with a floatation pod with an integrated radar reflector at each apex. The tetrahedron shape allows the device to roll due to the motion of the waves or the method of deployment, and always present the same shape and reflective area as a target for radar, or as a support for optional devices mounted on the structure. Each floatation pod is fitted either with scuttling devices, to cause the device to sink if recovery is not a preferred option, or plugs if recovery is required. The use of dissimilar metal in the scuttling devices and the pins that hold the device together allows the device to rapidly corrode once it sinks, alleviating environmental concerns. The device is collapsible for ease of storage, and can be either assembled by hand, or deployed automatically, depending upon usage requirements.
Patent CA-2248895-C (CA)
Inventor: FISCHER ALAN
IPC: H01M4/86
Filed: 1997-03-05
Granted: 2006-07-25
Abstract: The general area of this invention relates to porous materials made from nanofiber packed beds. More particularly, the invention relates to altering the porosity or packing structure of a nanofiber packed bed structure by blending nanofibers with scaffold particulates having larger dimensions. For example, adding large diameter fibers to a nanotube packed bed to serve as a scaffolding to hold the smaller nanofibers apart and prevent the nanofiber bed structure from collapsing. This increases the average pore size of the mass by changing the pore size distribution and alters the packing structure of the packed bed. The increase in average pore size is caused by the creation of larger channels which improves the flow of liquids or gasses through these materials.
Patent CA-2255736-C (CA)
Inventor: HOENISCH HERBERT
IPC: H05K7/20
Filed: 1997-06-13
Granted: 2003-10-28
Abstract: The invention relates to an equipment cabinet for electrical and electron ic systems, particularly a switch and control cabinet, with a functional area closed in dustproof and watertight manner and at least one door closing in dustproof and watertight manner, characterized in that a multishell struc- ture is provided round the functional area (1) and comprises baffle plates (11), the functional area wall (2) and outer jacket (5), between the baffle plates (11) and functional area wall (2) is formed an internal, channel- like space (6) and between the functional area wall (2) and outer jacket (5) an external, channel-like space (6') and the two channel-like spaces (6, 6') can be supplied by controllable volume flows independently of one another in load-dependent manner, the volume flows being adjustable from 0 to a maximum value and the maximum value is deter- mined by the hydraulic resistances of the elements (12, 7, 6') and the characteristics of the fan (8') on the one hand and the hydraulic resis- tances of the functional area equipment, the internal, channel-like space (6) and the characteristics of the fan (8) on the other hand and con- sequently the heat transfer from the functional area (1) to the exterior is intensified or from the exterior into the functional area (1) can be intensified and/orreduced. The equipment cabinet has particularly good cooling characteristics and al so an improved heat protection of the functional area, depending on the con- ditions of use, whilst simple technical means are employed.
Patent CA-2257813-C (CA)
Title: Hydrophilic hot melt adhesive
Inventor: ALPER MARK
IPC: C09J11/08
Filed: 1997-06-19
Granted: 2005-08-23
Abstract: Hydrophilic hot melt adhesive compositions suitable for a variety of applications, especially in nonwoven disposable articles, are prepared by blending various adhesive components with a surfactant. The surfactant has a hydrophile-lipophile balance (HLB) number of less than 15, and is incorporated into the composition in an amount such tha t the resultant adhesive has a contact angle of 75.degree. or less, and preferably less than about 40.degree.. A low contact angle is desirable so that water, urine or other water-based discharges, upon contacting a laminate bound together by the adhesive, wets out rather than beads up resulting in the fluid being directed away from the adhesive and towards an absorbent core of the disposable article.
Patent CA-2258393-C (CA)
Title: Ac/dc type microwave oven
Inventor: KIM CHUL
IPC: H05B6/64
Filed: 1999-01-06
Granted: 2000-10-31
Abstract: Disclosed is an AC/DC type microwave oven which has a function of managing an input power source. The AC/DC type microwave oven comprises a rotatable inverter which inverts a DC power source to an AC power source by means of a rotational force, a high voltage transformer which receives a common power source or an AC power inverted by the rotatable inverter and outputs a higher voltage, a magnetron which is driven by the high voltage outputted from the high voltage transformer and radiates a microwave and a power control unit for sensing a signal from a power selecting key and preventing the AC and DC power sources from being simultaneously inputted. Therefore, both of AC power and DC power are prevented from being simultaneously supplied to the microwave oven which results in a malfunction, or an overload occurs in the electric components of the microwave oven. Therefore, only one input power of the common and DC power sources is selected, the microwave oven is operated properly. The remaining voltage of the battery is always detected and displayed through the displaying means, thereby preventing a complete discharge of the battery.
Patent CA-2259030-C (CA)
Inventor: SANJOH AKIRA
IPC: C30B7/00
Filed: 1997-06-23
Granted: 2002-03-05
Abstract: A method for accelerating the crystallization of biopolymers such as a protein. A crystalline silicon element (70) controlled in the valence electrons in such a way that the concentration of holes or electrons present on the surface can be controlled in accordance with the conditions of a buffer solution (72) containing a biopolymer such as a protein is brought into contact with the solution (72) to thereby crystallize the biopolymer on the surface of the element (70); a plurality of grooves or hollows different in size are formed on the element (70) and the valence electrons are controlled in such a way that the crystallization of the biopolymer in the grooves or hollows can be conducted more rapidly than in the outside of them; and the crystals of the biopolymer grow in the grooves or hollows in contact with the solution (72).
Patent CA-2260479-C (CA)
Inventor: ROBINSON IAN
IPC: C23C30/00
Filed: 1999-01-28
Granted: 2005-09-27
Abstract: A two-part coating system comprises a first part comprising a blend of an aliphatic polyisocyanate with a non-reactive resin or a liquid epoxide resin and a second part comprising an aromatic polyamine, such that the two parts when mixed together and applied to a surface form a rapid-setting impervious coating. The coating system is suitable for application by spraying using equipment in which the two parts of the system are first combined at the point of spraying, at the spray head. In particular the system may be used to apply an impermeable lining to the internal surfaces of pipelines, for example by means of a centrifugal spinning head.
Patent CA-2266947-C (CA)
Title: Disposable diaper
Inventor: SUEKANE MAKOTO
IPC: A61F5/44
Filed: 1999-03-25
Granted: 2004-09-07
Abstract: A disposable diaper 1 has a first section 18 forming a part of a front waist region 10 and a second section 19 forming the remaining part of the diaper 1. The first and second sections 18, 19 are joined together over the entire width of the diaper 1 along a joined zone 37 extending over the entire width of the diaper 1 so that the joined zone 37 describes a concave line from the front waist region 10 towards a rear waist region 12 as the first section 18 is folded back onto the second section 19 with respective outer surfaces of these first and second sections 18, 19 facing each other. The diaper thus formed fitting thereof to a wearer's belly.
Patent CA-2272841-C (CA)
Inventor: CHENEBAULT JEAN
IPC: G01S5/14
Filed: 1999-05-26
Granted: 2008-12-09
Abstract: L'invention concerne un procédé de localisation d'un récepteur dans un systè me de navigation comprenant une constellation de satellites en orbite basse émettant des signaux. comprenant les étapes de - mesure de pseudo-distances entre le récepteur et des satellites à partir d es signaux reçus depuis les satellites; - mesure de pseudo-vitesses entre le récepteur et des satellites à partir de s signaux reçus depuis les satellites, grâce à l'effet Doppler, et - calcul de la position instantanée du récepteur à partir de la combinaison des mesures de pseudo-distances et de pseudo-vitesses. Le calcul de la position du récepteur s'effectue en minimisant la matrice d e covariance des pseudo-distances et des pseudo-vitesses mesurées. On assure ainsi simplement un positionnement précis du récepteur, notammen t pour une constellation de satellites en orbite basse.
Patent CA-2272976-C (CA)
Title: Method of removal of light metals from aluminum
Inventor: RICHARDS NOLAN E
IPC: F27D27/00
Filed: 1999-05-20
Granted: 2009-09-22
Abstract: Improved apparatus and method are described for the removal of light metals; sodium, lithium, calcium and magnesium, from virgin aluminum tapped from a Hall Heroult reduction cell using LiF-modified or LiF + MgF2 electrolyte. The method is performed in a crucible or at a station intermediate between the cells and furnaces in a cast house. Fine particulate aluminum fluoride and/or sodium aluminum tetrafluoride are transported by a gas or gas mixture into the molten aluminum in a manner such that the light metals are preferentially removed or their concentration substantially lowered through: 1) the axle of a specially designed spinning impeller; 2) partially through the axle of a specially designed spinning impeller and partially through one or more pipes equipped with dispersers for dispersing into the molten metal flow close to the spinning impeller; or 3) through one or more pipes equipped with dispersers for dispersing into the molten metal flow close to the impeller fastened to a solid axle.
Patent CA-2274240-C (CA)
Title: Electrical current generation system
Inventor: BROWN MICHAEL J
IPC: H01M8/0662
Filed: 1999-06-10
Granted: 2008-02-05
Abstract: In one embodiment, an electrical current generating system consists of a fuel cell, and an oxygen gas delivery system. The fuel cell includes an anode channel having an anode gas inlet for receiving a supply of hydrogen gas, a cathode channel having a cathode gas inlet and a cathode gas outlet, and an electrolyte in communication with the anode and cathode channel for facilitating ion exchange between the anode and cathode channel. The oxygen gas delivery system is coupled to the cathode gas inlet and delivers oxygen gas to the cathode channel. The electrical current generating system also includes gas recirculation means coupled to the cathode gas outlet for recirculating a portion of cathode exhaust gas exhausted from the cathode gas outlet to the cathode gas inlet. In another embodiment, an electrical current generating system consists of a fuel cell, an oxygen gas delivery system, and a hydrogen gas delivery system. The oxygen gas delivery system is coupled to the cathode gas inlet and delivers oxygen gas to the cathode channel. The hydrogen gas delivery system includes a hydrogen gas inlet for receiving a first hydrogen gas feed from the anode gas outlet, and a hydrogen gas outlet coupled to the anode gas inlet for delivering hydrogen gas to the anode channel with increased purity from the first hydrogen gas feed.
Patent CA-2274861-C (CA)
Title: Procede pour produire une plaque de refroidissement pour des fours de production de fer et d'acier
Inventor: LEPPANEN YRJO
IPC: F27D1/12
Filed: 1998-01-05
Granted: 2005-04-12
Abstract: L'invention concerne un procédé permettant de produire une plaque de refroidissement (50, 80) comportant des canaux de refroidissement (52, 84) intégrés pour des fours de production de fer ou d'acier. Une ébauche de la plaque de refroidissement (50, 80) est coulée à l'aide d'un moule de coulée continue (10). Des inserts (28) sous forme de tiges se trouvant dans le canal de coulée (20) du moule de coulée continue (10) produisent, dans cette ébauche, des canaux (52, 84) s'étendant dans le sens de la coulée continue et formant des canaux de liquide de refroidissement dans la plaque de refroidissement finie.
Patent CA-2280845-C (CA)
Title: Optical circulator
Inventor: GUO QINGDONG
IPC: G02B6/26
Filed: 1998-11-17
Granted: 2002-08-20
Abstract: An improved optical circulator transfers light from a first optical port to a second optical port, and from the second port to a third port. The circulator has reciprocal polarization rotators (16-A, -B; 18-A, -B) and non-reciprocal polarization rotators (20-A, -B), birefringent beam splitters and combiners (14-A, -B), and a birefringent walk-off element (26) as well as a polarization-dependent light bending device comprising two tapered birefringent plates (22, 24). The light bending device compensates for an angle between a first light beam emanating from the first port and a second light beam propagating to the third port. The existence of this angle allows the first and third fibers to be coupled to the light beams using a single lens.
Patent CA-2281870-C (CA)
Inventor: DUNN THOMAS M
IPC: B03B9/04
Filed: 1998-02-23
Granted: 2007-01-02
Abstract: Apparatus and method for separating carbon particles from flyash include one of increasing a relative humidity of the flyash or decreasing the relative humidity of the flyash to within an optimum humidity range, and introducing the flyash within the optimum humidity range into a triboelectric separator so as to triboelectrically charge the carbon particles and the flyash and so as to electrostatically separate the charged carbon particles from the charged flyash.