baber/WOPTO huggingface dataset:
Patent CA-2159245-C (CA)
Title: System and method for detecting cloning fraud in cellular/pcs communications
Inventor: GERTH DONALD M
IPC: H04M1/00
Filed: 1995-09-27
Granted: 2000-02-01
Abstract: A system and method for proactively detecting cloning fraud in a cellular mobile telephone environment are discussed. Information is collected which corresponds to registration notifications of the cellular telephones as they operate within the cellular mobile telephone environment. The registration information is used to detect time-space peculiarities. Specifically, registrations having the same mobile identification number and occurring in different mobile switching centers within a predetermined time interval are identified. This time interval, based on a reasonable travel time between cells covered by the different mobile switching centers where the registrations originated, is used as a threshold for detecting cloning fraud.
Patent CA-2159565-C (CA)
Inventor: HAKALA HARRI
IPC: H02P6/24
Filed: 1995-09-29
Granted: 1999-09-28
Abstract: The invention relates to a procedure and an apparatus for braking a synchronous motor magnetized with permanent magnets.  According to the invention, there is connected to the input connectors of the synchronous motor a non-linear braking resistor by means of which the stator windings of the synchronous motor are closed.
Patent CA-2171120-C (CA)
Inventor: MURPHY EDMOND JOSEPH
IPC: G02F1/313
Filed: 1996-03-06
Granted: 1999-12-28
Abstract: A digital optical switch and a method for digital optical modulation are disclosed. The digital optical switch is comprised of an optical waveguide having an input control region, a connection region, and a separation region, and a generator which generates a smoothly varying electric field in an input control region of said optical waveguide and a substantially constant electric field in said separation region of said optical waveguide. The optical waveguide may be either an x-shaped optical waveguide or a y-shaped optical waveguide.
Patent CA-2175071-C (CA)
Title: Measuring method and apparatus of gloss irregularity and printing unevenness
Inventor: SHIRATORI NAOYUKI
IPC: G06T7/60
Filed: 1994-10-26
Granted: 1999-11-30
Abstract: An outer surface of an object 23 is irradiated with visible light from a light source 21, and the reflected light is acquired by a TV camera 24. A two-dimensional image with gradation is Fourier transformed by an image analyzer 20. The brightness and darkness of the image are bipolarized using an emphasis coefficient in a predetermined wavelength range in the process of Fourier transform. The bright regions and dark regions forming closed regions are calculated separately as regions representing gloss irregularity or printing unevenness, thereby outputting a statistical parameter of the areas as a measured result.
Patent CA-2175441-C (CA)
Title: Platform, step and foothold arrangement for railcar end structure
Inventor: COSLOVI ILARIO A
IPC: B61D45/00
Filed: 1996-04-30
Granted: 2001-03-13
Abstract: A platform arrangement for an end structure of a railway well car having a well portion defined by spaced apart side structures, opposing end structures and a floor structure extending between the side structures.  Each of the end structures has spaced apart sidewalls, with a horizontally disposed shear plate extending between and connecting to the sidewalls.  Each of the end structures further includes (i) an upper bolster extending upwardly from the shear plate and connecting to the sidewalls; (ii) a bulkhead depending from an inboard end of the shear plate, which extends into the well portion and between the sidewalls to connect to them; and (iii) a stub centre sill positioned below the shear plate. The platform arrangement itself comprises (i) a first horizontal platform surface; (ii) a second horizontal platform surface; (iii) an outboard intermediate horizontal platform surface; (iv) an inboard intermediate horizontal platform surface; and (v) a foothold provided with the bulkhead.  The first and second horizontal platforms surface extend transversely of the well car.  The first is disposed at a position outboard of the upper bolster; the second is disposed immediately above the upper bolster.  The outboard intermediate platform is disposed above the first platform and below the second platformat a position outboard of the upper bolster.  The inboard intermediate platform is disposed below the second platform and above the shear plate at a position inboard of the upper bolster member.  The foothold is located at a vertical position intermediate of the shear plate and the floor structure.  The platform arrangement constitutes means for accessing the well portion of the well car from ground level by successively stepping onto the first platform, the outboard intermediate platform, the second platform, the inboard intermediate platform, the shear plate and the foothold.
Patent CA-2181199-C (CA)
Title: Intelligent message leaving
Inventor: SMITH DON
IPC: H04M3/533
Filed: 1996-07-15
Granted: 2001-08-21
Abstract: An automated telephone system includes a telephone terminal for communicating with a remote party over a telephone line; a storage device for storing a plurality of pre-recorded voice messages entered through said terminal; and a service controller connected to the telephone terminal and the storage device. The service controller is responsive to commands entered through the telephone terminal either to store spoken messages in said storage device and associate them with a unique identifier, or to access a selected one of the stored messages using its unique identifier and replay it over the telephone line to a remote party.
Patent CA-2181262-C (CA)
Title: Process and apparatus for mixing cohesive powders
Inventor: WENNERBERG KARIN GUNILLA
IPC: B01F29/60
Filed: 1995-01-26
Granted: 2004-11-02
Abstract: The invention relates to a method of mixing cohesive finely divided powders such as finely divided powdered medicaments having a particle size less than about 10 µm comprising the combination of a rotating/vibrating movement with a sieving procedure, wherein the method comprises the steps of adding a finely divided powdered mixture of substances to a perforated partition in a container, subjecting the container to a rotational and preferably vibrating movement in horizontal and/or vertical directions whereby the rotational movement is performed in intervals and whereby the container is turned in a vertical direction an angle of substantially 180° during each turn. The invention also includes an apparatus for mixing finely divided powders to be used in the above-mentioned method as well as the use of the method according to the invention for mixing cohesive finely divided powders.
Patent CA-2190030-C (CA)
Title: Method for preparing 3-carboxy-4-hydroxybenzaldehydes and derivatives thereof
Inventor: METIVIER PASCAL
IPC: C07C45/65
Filed: 1996-05-24
Granted: 2008-10-07
Abstract: PCT No. PCT/FR96/00779 Sec. 371 Date Jan. 24, 1997 Sec. 102(e) Date Jan. 24, 1997 PCT Filed May 24, 1996 PCT Pub. No. WO96/37454 PCT Pub. Date Nov. 28, 1996The present invention concerns a process for the preparation of 3-carboxy-4-hydroxybenzaldehydes and derivatives thereof from phenolic compounds carrying formyl and/or hydroxymethyl groups in the 2 and 4 positions. The invention also concerns the preparation of 4-hydroxybenzaldehydes from 3-carboxy-4-hydroxybenzaldehydes. More particularly, the invention concerns the preparation of 3-methoxy-4-hydroxybenzaldehyde and 3-ethoxy-4-hydroxybenzaldehyde, respectively known as "vanillin" and "ethylvanillin". The process for the preparation of 3-carboxy-4-hydroxybenzaldehyde is characterized in that the group in the 2 position in a phenolic compound carrying formyl and/or hydroxymethyl groups in the 2 and 4 positions is selectively oxidized to a carboxy group, and optionally a hydroxymethyl group in the 4 position is selectively oxidized to a formyl group. A successive decarboxylation step for a 3-carboxy-4-hydroxybenzaldehyde produces a 4-hydroxybenzaldehyde.
Patent CA-2192959-C (CA)
Title: Cyanogen fumigants and methods of fumigation using cyanogen
Inventor: DESMARCHELIER FRANCIS JAMES MI
IPC: A01N59/24
Filed: 1995-07-05
Granted: 2007-02-13
Abstract: A fumigant, comprising cyanogen (C2N2) (as herein defined), provides a viable alternative to conventional fumigants such as methyl bromide, phosphine and carbonyl sulphide. Experiments have shown that cyanogen (C2N2) can be used as such a fumigant, in the control of a range of biota, including insects, mites, nematodes, fungi and their spores, viruses, spiders, bacteria, moulds and rodents. It is also suitable for use on a variety of commodities, including grain, seeds, meats, fruit, vegetables, timber, plants, cut flowers and soil.  It is shown that an efficacious concentration of cyanogen (C2N2) as a fumigant leaves a very low residue and can be readily flushed from commodities. In particular, it has been observed that a mixture of cyanogen (C2N2) and carbon dioxide have a synergistic effect, when applied to various biota. Throughout the specification, it should be noted that the term "cyanogen" is defined as the gas (at STP) cyanogen, C2N2, essentially free from hydrogen cyanide and other cyanogenic compounds (that is, compounds that give rise to hydrogen cyanide). Cyanogen, which has also been termed dicyan and oxalonitrile, as a fumigant, may be shown as (CN)2, C2N2 or NC-CN.
Patent CA-2203035-C (CA)
Inventor: SPUTTEK ANDREAS
IPC: A61J1/10
Filed: 1995-10-14
Granted: 2006-05-23
Abstract: A container that may be closed all around is useful for deep-freezing suspensions of living cellular substances kept in elastic bags. The containe r has two plane-parallel thin-walled metallic plates (14, 16) secured in swivellingly interconnected frame halves (20, 22). When the frame halves (20, 22) are superimposed, the plates (14, 16) secured therein are arranged with parallel faces at a slight defined distance from each other and form an intermediate cavity (12) in which the bag is placed. When the container is closed, the plates (14, 16) press the bag arranged inside (12) the container and flatten it until it has a small defined thickness. A microporous layer (30) that considerably increases heat transfer to the coolant that surrounds the container is secured to the outer side of plates (14, 16) by an adhesive layer. Furthermore, since the homogeneously flattened bag has a high surface/volume ratio and is pressed until it has no folds or bulges, the cellular substance may be quickly and controllably cooled.
Patent CA-2208493-C (CA)
Title: Bicomponent fibers having distinct crystalline and amorphous polymer domains and methods of making the same
Inventor: BRISTOW JAMES R
IPC: D01F8/12
Filed: 1997-06-17
Granted: 2001-09-11
Abstract: Novel bicomponent fibers have a polyamide domain and an amorphous non-fiber-forming polymer domain which is embedded entirely within, and thereby completely surrounded by, the polyamide domain. The preferred bicomponent fibers have a sheath-core structure wherein the polyamide domain constitutes the sheath and the amorphous non-fiber-forming polymer constitutes the core. Surprisingly, even though the core is formed of a non-fiber-forming polymer, the bicomponent fibers exhibit properties which are comparable in many respects to fibers formed from 100% polyamide. Preferably, the fibers are concentric sheath-core bicomponent fibers having a nylon sheath and a core formed from polystyrene, polyisobutene and poly(methyl methacrylate). Polystyrene, and particularly atactic polystyrene, is preferred as the amorphous polymer domain.
Patent CA-2208829-C (CA)
Inventor: GEISSLER STEVEN J
IPC: B23K9/067
Filed: 1997-06-25
Granted: 2000-10-31
Abstract: A method and apparatus for arc welding, particularly starting an arc is disclosed.  A welding power source that provides a welding current to an electrode and a workpiece includes a source of welding current having an inductor.  The inductor and current source are connected to a pair of outputs, such as the output studs, and form a welding current path including the source of current, the output inductor, the outputs and the electrode and workpiece.  A source of a high frequency voltage, such as a high frequency coupling coil is included in the welding current path.  An arc starting circuit provides a controllable current path for current flow in the inductor prior to the application of high frequency voltage.  The arc starting current path is not the welding current path.
Patent CA-2209654-C (CA)
Inventor: JOHNSEN ANDREW C
IPC: F42D1/045
Filed: 1996-01-22
Granted: 2000-07-18
Abstract: A method and apparatus for operably connecting electronic devices through a closed container is achieved by securing one end of a laminate connector (28) to a first electronic device, e.g., a fireset circuit (22). Device (22) is placed in a housing (12) which defines a housing closure surface (16). A cover (14a), which defines a cover closure surface (18) dimensioned and configured to engage the housing closure surface (16), is placed on the housing (12) to define a housing-cover joint (20a), and the laminate connector (28) is disposed within the housing-cover joint (20a). The housing-cover joint (20a) is sealed with an adhesive and the second end of the laminate connector (28) is connected to a second electronic device. The thinness of the laminate connector allows it to pass through the housing-cover joint (20a) without significant adverse affect on the seal therein or on the pressure-bearing ability of the housing (12) or the cover (14a). In one application, the invention may be used to electrically connect an encased fireset to an external arming device.
Patent CA-2214897-C (CA)
Inventor: ADAMS JOHN LEONARD
IPC: H04L12/54
Filed: 1996-03-08
Granted: 2008-09-09
Abstract: In a broadband switching system for the switching of asynchronously transferred cells of data, a dynamic bandwidth controller (DBC) controls the application of data cells at an input port of the system, the data cells being supplied by a number of transmitting end-stations.  The DBC detects incoming cells, identifies the source of the cells, provides buffering for the cells, and controls the output of the cells to the system switches according to a current cell rate (CR) assigned to the cells from the respective source. The system also includes a connection admission (CAC) module which determines bandwidth available in the system. The DBC and CAC operate together to maintain a permanent virtual path of a predetermined minimum bandwidth through the system and allocate additional bandwidth on demand up to a maximum. The additional bandwidth allocated to the path can be automatically removed or reduced of it is not used by the source.  Feedback to the source can be provided to prevent cells being supplied at a rate which would result in significant cell loss due to the limitation of bandwidth available for the path in the system.
Patent CA-2217022-C (CA)
Title: Hot channel injection moulding die
Inventor: MANZ WILLI
IPC: B29C45/73
Filed: 1997-02-05
Granted: 2002-08-20
Abstract: The hot channel die (1) is arranged within a casing (13) filled with oil. In the hollow space (15) filled with oil, baffles (17, 19) are installed which effect a current of the oil directed toward the two ends of the nozzle (1). For this purpose, the heating element (23) is arranged on the underside of the die (13).      The discharge sleeve (117), which introduces the liquid plastic from the feeding screw, discharges into the hollow body (115), which is mounted in a recess in the hot runner plate (105) of a hot channel injection molding die. The distribution conduits (119), which are constructed as curved tubes, are installed on the discharge sleeve (117), and lead to the side wall (121), against which the rear ends of the injection nozzles lie. The hollow space (125) is filled with a heat-conducting medium, for example oil, which is heated by a heater (127) and uniformly circulated within the hollow space (125) by convention or motorized circulation. Baffles (131) optimize the circulation of the medium and its return guidance to the heater (127).
Patent CA-2228890-C (CA)
Inventor: RYAN THOMAS PATRICK
IPC: A61B17/00
Filed: 1996-07-11
Granted: 2001-09-11
Abstract: La présente invention consiste à utiliser l'énergie électro-chirurgicale en association avec un outil chirurgical (12) pour suturer de façon étanche un vaisseau ou tissu vasculaire d'un patient (13). L'un des avantages importants de l'invention est de permettre la fermeture effectivement étanche des vaisseaux d'un patient sans abandonner de matériau étranger dans le corps du patient. La présente invention, qui permet également la suture étanche des vaisseaux d'au moins dix millimètres de diamètre, offre en outre l'avantage au chirurgien de constater de visu l'intégrité de la suture étanche. Pour en arriver à ce résultat, l'invention met en oeuvre l'application d'une pression et l'apport contrôlé d'énergie électro-chirurgicale. L'outil chirurgical (12) utilisé permet de saisir le tissu du patient (13) et d'y appliquer une force de fermeture appropriée. L'outil permet d'apporter au tissu l'énergie électro-chirurgicale tout en appliquant une force de occlusive. L'invention concerne également un procédé de suture étanche des vaisseaux et des tissus vasculaires du patient (13) consistant en: l'application de pression aux vaisseaux et autres tissus du patient (13); l'apport aux vaisseaux et autres tissus d'un premier niveau d'énergie électro-chirurgicale de façon à faire fondre les protéines contenues dans le tissu; l'apport aux vaisseaux et autres tissus d'un second niveau d'énergie électro-chirurgicale de façon à provoquer une dessiccation sans carbonisation; la réduction de l'énergie électro-chirurgicale sensiblement à zéro pendant une durée suffisante pour permettre aux vaisseaux et autres tissus de refroidir en reprenant une nouvelle forme rétractée; et enfin l'arrêt de l'exercice de la pression sur le tissu.
Patent CA-2231575-C (CA)
Title: Call routing in an atm switching network
Inventor: BESHAI MAGED E
IPC: H04L12/56
Filed: 1996-10-16
Granted: 2001-12-25
Abstract: A routing scheme for an ATM switching network includes a plurality of switching nodes, each of which includes individual storage for storing routing messages for each outgoing link. A call at a source node is routed through one possible routing path which requires only one or two links to complete a connection to a destination node. In such case, one of the routing paths is selected based on link state information concerning only the possible routing paths. If the call requires a route path which includes three or more links to the destination node, the source node performs a predefined sequential routing to its neighboring node before the neighboring node negotiates with selected intermediate nodes for a connection involving two links. The routing messages stored at each node are processed independently and simultaneously by each node. The main requirement is that routing decisions must be based on true link-state information. A protocol is devised for fast and efficient bulk processing while avoiding potential deadlocks.
Patent CA-2233693-C (CA)
Inventor: CHEATHAM JAMES R
IPC: D21B1/02
Filed: 1998-04-02
Granted: 2007-07-17
Abstract: In an otherwise conventional star feeder, equipment longevity is greatly enhanced by providing a readily replaceable shear edge at the downstreammost (in the direction of rotor rotation) portion of the feeder housing inlet, adjacent the clearance between the rotating pocketed rotor and the housing. Preferably one or more plates defining the shear edge are mounted by fasteners, such as screw threaded fasteners, to the housing. Where the feeder is retrofit, with the replaceable shear edge, a recess may be formed in the housing to accept and position the one or more shear plates. A shear plate may have a number of openings elongated in a dimension intersecting the clearance adjacent the inlet, and by loosening or tightening fasteners the position of the plate shear edge may be adjusted with respect to the clearance to provide an effectively new shear edge when it becomes worn. At least the shear edge portion of the shear plate may be of a hard wear resistant material, e.g. having a Brinnell Hardness at least 10% greater than that of the housing, and between about 350-450. A removable protective baffle is preferably disposed in the inlet in a position above and protecting the shear edge.
Patent CA-2237221-C (CA)
Title: Protein kinase c inhibitor
Inventor: FAUL MARGARET MARY
IPC: A61K31/44
Filed: 1996-11-18
Granted: 2003-03-25
Abstract: This invention provides novel bis-indolylmaleimide macrocycle derivatives of  formula (Ia), and solvates thereof. The invention further provides the preparation, pharmaceutical formulations and the methods of use for inhibiti ng Protein Kinase C in mammals.
Patent CA-2239343-C (CA)
Inventor: IWATA NAOTAKA
IPC: H03F3/60
Filed: 1998-06-02
Granted: 2001-08-07
Abstract: A matching circuit is formed by a series inductor, a parallel capacitor, a drain bias circuit, and a DC-blocking capacitor for the purpose of impedance matching. A capacitor having a capacitance that is dependent upon the bias voltage is used as the parallel capacitor. This can be, for example, a material such as a (BaxSr1x)TiO3 thin-film, which exhibits a capacitance having a bias voltage dependency.  Because this  thin-film capacitor exhibits polarization by an electrical field, its capacitance is the largest with a bias of O volts, and is reduced to approximately 50% as the bias voltage is increased. By using this capacitor in a matching circuit, it is possible to change the matching condition as the output power is increased, that is, as the voltage applied to the capacitor is increased. By considering both the condition which results in good transistor output and the condition which results in good distortion characteristics, it is possible to achieve a design in which the matching conditions are changed from a condition that emphasizes output power to a condition that emphasized low distortion, as the output power increases.
Patent CA-2239416-C (CA)
Title: Method of communicating data through a slickline or other single cable suspension element
Inventor: SMITH ELBERT JUAN
IPC: E21B47/12
Filed: 1998-06-02
Granted: 2004-08-17
Abstract: Disclosed is a method of communicating data and control signals between a down hole well tool and surface equipment wherein variations in the tension of the line supporting the tool from a reference tension value established with the well tool in place for operation are imposed at one location on the support line and detected at another location on said support line said variations in tension being coded in frequency, magnitude, polarity or duration or combinations thereof to convey the data and control signals between the two locations.
Patent CA-2239804-C (CA)
Title: Seating and kneeling appliance
Inventor: FRAWLEY MARK A
IPC: A47K3/00
Filed: 1998-06-26
Granted: 2002-08-27
Abstract: A seating and kneeling appliance is adaptable to and is useful for providing comfort and support to a person who is cleaning a bathtub or assisting another person in the bathtub.      The device is fabricated from essentially from plastic and is foldable. In use, the device rests on the outside wall of the bathtub and on the floor to provide support for an individual that is using the device.
Patent CA-2241590-C (CA)
Inventor: LIMBERG ALLEN LEROY
IPC: H04N5/44
Filed: 1998-06-23
Granted: 2001-09-11
Abstract: Symbol decoding results obtained using comb filtering to suppress artifacts of NTSC co-channel interference before symbol decoding and symbol decoding results obtained without using such comb filtering before symbol decoding are compared for determining which symbol decoding results are to be selected as final symbol decoding results. Symbol decoding results obtained using comb filtering to suppress artifacts of NTSC co-channel interference are selected as final symbol decoding results when NTSC co-channel interference occurs. The digital television signals are detected to determine whether 4.5 MHz NTSC intercarrier obtains, in order to confirm the occurrence of substantial NTSC co-channel interference.