baber/WOPTO huggingface dataset:
Patent CA-2245213-A1 (CA)
Title: Self contained transport for crop harvesting header
Inventor: DUNN JIM T
IPC: A01D75/00
Filed: 1998-08-17
Abstract: A header for crop harvesting machine includes a transport arrangement towing the header in a direction at right angles to its normal working direction. The transport system includes a first wheel at one end of the header which can be steered by a hitch pole connected to the first wheel. A second wheel is located symmetrically relative to the first wheel at the opposite end of the header and is free to caster. In the normal working position of the header the first and second wheels act as gauge wheels and are left in the direction of working movement. A third wheel which is removed in the working position is attached to the cutter bar by a clamping action over the knife guard and behind the knife support plate at a respective one of the forwardly extending support arms of the header frame. The hitch includes two portions which can relatively pivoted so as to reduce the effective length of the hitch thus allowing the tractor to back up to a position closer to the header than the effective length of the hitch and allowing the hitch to be pivoted for connection.
Patent CA-2248888-A1 (CA)
Title: Class a/f amplifier having second and third order harmonic input and output filtering and self bias distortion correction
Inventor: HELMS DAVID R
IPC: H04B1/40
Filed: 1998-10-15
Abstract: A new class A/F amplifier has an filtering and matching input circuit, a summing junction, an amplifying circuit, a filtering and feedback biasing circuit, and an output filtering and matching circuit.  The filtering and matching input circuit responds to a radio frequency access input signal, for providing a filtered and matched radio frequency access input signal.  The summing junction responds to the filtered and matched radio frequency access input signal, and further responds to a filtering and feedback biasing signal, for providing a summed, filtered, matched and feedback radio frequency access input signal.  The amplifying circuit responds to the summed filtered, matched and feedback radio frequency access input signal, for providing an amplified, summed, filtered, matched and feedback radio frequency access input signal.  The feedback and filtering biasing circuit responds to the amplified, summed, filtered, matched and feedback radio frequency access input signal, for providing the feedback and filtering biasing signal.  The output filtering and matching circuit responds to the amplified, summed, filtered, matched and feedback radio frequency access input signal, for providing an amplified, summed, filtered, matched and feedback radio frequency access output signal.          The class A/F amplifier substantially reduces harmonics in the radio frequency signal that cause power interference between adjacent channels, resulting in greatly improved mobile communication service having much fewer dropped calls and an enhanced calling range.
Patent CA-2249461-A1 (CA)
Inventor: ODDOU WILFRID
IPC: G07F7/10
Filed: 1996-10-11
Abstract: A portable device (11) for performing secure transactions with transaction terminals (12), including first means (111, 113) for performing a secure transaction using first transaction resources stored in a first memory (114), and means (115) for contactless communication with said transaction terminals. The device includes means (116) for interfacing with a smart card (13) including second means (131, 133) for performing a secure transaction, and means (117) for selecting one of the first secure transaction means and the second secure transaction means, with particular reference to data on the presence and validity of said card, whereby a transaction may be performed either by the portable device (11) or by said smart card (13). In either case, data communication with said transaction terminals (12) is provided by said contactless communication means (115).
Patent CA-2254439-A1 (CA)
Inventor: MORIN BRIAN G
IPC: A47L13/16
Filed: 1998-11-19
Abstract: A method of manufacturing a polyester textile fabric having a relatively low level of particulate contaminates and high absorbency is provided by heatsetting the fabric at a temperature of 300° F or less.
Patent CA-2254705-A1 (CA)
Title: Secured mullion latch and post
Inventor: MAMCHYCH VICTOR
IPC: E06B1/52
Filed: 1998-12-01
Abstract: A mullion latch is provided that will firmly secure a mullion post and yet permit the mullion post to be readily removable and reinstallable and which provides a tamper proof and secure vandal resistant mullion latch and post which is easy to install and remove. The mullion latch is used in conjunction with a double door opening that is designed to accommodate two single doors making use of the mullion post for their locking mechanisms, such as panic rim devices. Adapters are provided which may be used with the mullion latch in combination with a variety of mullion shapes, extruded or otherwise, that are employed in double door mullion assemblies, thereby negating any need to replace existing mullion posts when being adapted to employ the mullion latch. An assembly kit is provided for retrofitting or adapting existing mullion posts to be readily removable and reinstallable which includes the mullion latch combined with an adapter for use with a variety of existing moveable hollow core mullion shapes.
Patent CA-2254768-A1 (CA)
Title: Antagonists of gonadotropin releasing hormone
Inventor: SMITH ROY G
IPC: A61K31/4706
Filed: 1997-05-16
Abstract: There are disclosed compounds of formula (I) and pharmaceutically acceptable salts thereof which are useful as antagonists of GnRH and as such may be useful for the treatment of a variety of sex-hormone related conditions in both men and women.
Patent CA-2255222-A1 (CA)
Inventor: BRETON LIONEL
IPC: A61K8/00
Filed: 1998-12-16
Abstract: L'invention a pour objet une composition cosmétique comprenant dans un milieu cosmétiquement acceptable au moins du phloroglucinol ou l'un de ses dérivés. L'invention a également pour objet l'utilisation du phloroglucinol ou de ses dérivés dans une composition cosmétique destinée à favoriser le renouvellement épidermique.
Patent CA-2256637-A1 (CA)
Inventor: WEHNER WOLFGANG
IPC: C08K3/32
Filed: 1998-12-17
Abstract: A description is given of stabilizer combinations comprising A) at least one compound of the formula I   (see formula I) in which R1 and R2 independently of one another are C1-C12-alkyl, C3-C6-alkenyl, C5-C8-cycloalkyl which is unsubstituted or substituted by 1 to 3 C1-C4-alkyl-, C1-C4-alkoxy-, C5-C8-cycloalkyl or hydroxyl groups or chlorine atoms, or are C7-C9-phenylalkyl which is unsubstituted or substituted on the phenyl ring by 1 to 3 C1-C4-alkyl, C1-C4-alkoxy, C5-C8-cycloalkyl or hydroxyl groups or chlorine atoms, and R1 and R2 can additionally be hydrogen, and Y is S or O, and B) at least one compound from the group of the calcium aluminum hydroxides and/or their hydrates and/or C) at least one compound from the group of the calcium aluminum hydrogen phosphites and/or their hydrates and/or D) at least one compound of the group of the aluminum hydroxides and/or their hydrates and/or E) at least one compound from the group of the calcium aluminum hydroxo (hydrogen) carbonates and/or their hydrates and/or F) at least one compound from the group of the lithium layered lattice compounds and/or their hydrates and/or G) at least one compound from the group of the titanium-containing hydrotalcites and/or their hydrates which are suitable for stabilizing chlorine-containing polymers, especially PVC.
Patent CA-2261325-A1 (CA)
Title: Air flow activated control unit for a furnace
Inventor: CONDO GERRI M
IPC: F24F6/04
Filed: 1999-02-05
Abstract: All air flow activated humidifier for use in a ventilation system comprising a water evaporating means, displacing means engageable by the air flow of said ventilation system for displacing said water evaporating means, and activating means operably associated with said displacing means for activating said humidifier when said water evaporating means is displaced. A control system for a flow-through humidifier comprising a pivoting means, returning means, switching means and water valve. A method for humidifying circulated air using an air flow activated humidifier.
Patent CA-2261653-A1 (CA)
Title: Process for preparing perfluoro-[2-(n-propoxyl)-propionyl]fluoride
Inventor: SIEGEMUND GUENTER
IPC: B01J19/18
Filed: 1997-07-21
Abstract: A process is disclosed for continuously preparing perfluoro-2-(n-propoxyl)-propionylfluoride (PPPF) by dimerising hexafluoropropenoxide in a bubble column or in a comparable reactor filled with a dipolar-aprotic solvent and a nucleophilic catalyst. Hexafluoropropenoxide is introduced through the bottom of the reactor, the gaseous mixture contained in the reactor is circulated by a pump, expelling the PPPF before it further reacts, the gaseous mixture leaving through the head of the reactor is cooled in a condenser, the noncondensed components of the gaseous mixtures are returned to the reactor, the thus obtained condensate, which consists of a top solvent phase and of a bottom PPPF phase, is kept at reflux temperature in order to eliminate low boiling components, the spent hexafluoropropenoxide is returned to the gas circuit together with the non-condensed components of the gaseous mixture, the PPPF phase is removed from the condensate as final product and the solvent phase is returned to the reactor.
Patent CA-2262035-A1 (CA)
Title: Switched-mode power supply with active harmonics limiting
Inventor: TWARDZIK RENE
IPC: H02M7/12
Filed: 1999-02-16
Abstract: What is disclosed is a switched-mode power supply for supplying a DC-fed load (LD) by a stepped-up, stabilized DC voltage (uzw), which is formed from an AC mains voltage (U) by means of a rectifier circuit (D1 to D4), a charging inductor (L1), a switch (V1), which is controlled by a control unit (2) and has its switching path connected in parallel with outputs of the rectifier circuit, and also a charge storage arrangement (D5, C1, C2, D6), which is connected once again in parallel with the switching path of the said switch. In this case, the charge storage arrangement (D5, C1, C2, D6) comprises a series circuit of charging diodes (D5 and D6) and two storage capacitors (C1, C2), whose common junction point is connected to a neutral conductor terminal (N) of the rectifier circuit. The charging inductor (L1) is arranged in the line path, at high potential (L), between AC mains voltage (U) and the rectifier circuit and has an auxiliary winding (L1s), to which a signal evaluation unit (3) for the floating evaluation of the instantaneous charge state of the charging inductor is connected, in order to derive therefrom state control signals (Ul1, Ust, Io) for the control unit (2).
Patent CA-2262563-A1 (CA)
Title: Control of cyperus spp. with a fungal pathogen
Inventor: CHARUDATTAN RAGHAVAN
IPC: A01N63/30
Filed: 1997-08-26
Abstract: The subject invention concerns a novel bioherbicide and its use to control weeds known as nutsedges (Cyperus Spp). The novel fungus, Dactylaria higginsii (Luttrell) M.B. Ellis is pathogenic to purple nutsedge, yellow nutsedge, annual sedge, globe sedge, rice flatsedge, and Cyperus brevifolius. These sedges cause major losses in different crops and turf. Accordingly, the fungus of the subject invention is an important advance in the control of these noxious weeds.
Patent CA-2262873-A1 (CA)
Inventor: SHTURMAN LEONID
IPC: A61B17/22
Filed: 1997-07-03
Abstract: This invention is an atherectomy device for removing tissue from an artery. The device includes a flexible, elongated drive shaft (20) rotatable about a guide wire (15), the drive shaft having an enlarged diameter tissue removal section (28). The drive shaft and the enlarged diameter tissue removal section are comprised of helically wound wire. Wire turns of the proximal portion (30) of the tissue removal section have diameters that gradually increase distally at a generally constant rate thereby forming generally the shape of a cone. Wire turns of the distal portion (40) of the enlarged diameter tissue removal section have diameters that gradually decrease distally thereby forming a generally convex distal portion. At least part of the tissue removal section includes an external coating of an abrasive material (24) to define an abrasive segment of the drive shaft.
Patent CA-2266869-A1 (CA)
Title: Fluid mixing-jetting apparatus, fluid mixer and snowmaker
Inventor: SUGIURA HIKOROKU
IPC: B05B7/04
Filed: 1999-03-25
Abstract: A fluid mixing-jetting apparatus includes an apparatus body provided at its upstream end with an inlet arrangement for introducing plural kinds of fluids into a flow passage formed in the apparatus body. The apparatus further includes an end plate closing a downstream end of the flow passage of the apparatus body. The end plate is formed with at least one jet opening at a position offset from a center axis of the flow passage of the apparatus body. The end plate may be further formed with a plurality of concave portions on an upstream surface thereof so that the upstream surface of the end plate is formed as a non-planar surface. The jet opening may be non-circular and continuous with an inner circumference of the apparatus body defining the flow passage.
Patent CA-2268591-A1 (CA)
Title: Chrystallisation method and installation
Inventor: JANSEN HALBE ANNE
IPC: B01D9/00
Filed: 1999-04-06
Abstract: The present invention relates to a method and installation for the crystallisation of a liquid from a solution, a suspension or a mixture of liquids using a crystalliser which, for example, is provided on its wall with a heat exchanger and comprises a single chamber for both nucleation, and growth. Depleted mother liquor is withdrawn from the crystallisation vessel via a filter located in the crystalliser, so that the crystal content in the vessel can be accurately adjusted for the purpose of optimum separation of the crystals, preferably using a packed-bed wash column. The crystalliser preferably contains a stirrer with the filter on the stirrer shaft. The filter rotates past a scraper, which is arranged in a fixed position, as a result of which the filter cake can be reintroduced into the suspension without damage to the crystals.
Patent CA-2269595-A1 (CA)
Title: Measuring or security system
Inventor: KOSLAR MANFRED
IPC: G01S13/28
Filed: 1997-11-03
Abstract: A measuring or security system (1) for detecting the distance between an object (2) or a person (2) from a given point of reference, comprising a first transmitter/receiver device (10) enabling production of and wireless transmission of a control signal to a separate second transmitter/receiver device (30) and reception of an acknowledgement signal transmitted by the second transmitter/receiver device (30) on receiving control signal. Both transmitter/receiver devices (10,30) have a signal source (24,24,25,26) producing pulses as a control signal or an acknowledgement signal. Said pulses have a monotonously decreasing or increasing frequency during pulse duration or are made of overlapping pairs of like pulses. The other transmitter/receiver (10,30) has at least one dispersion filter (11) with a given frequency dependent signal transit time on its receive side so that received pulses can be time-compressed. Transit time is adapted to the modulation on transmit side in such a way that spectral signal components of the control or acknowledgement signal coincide substantially at dispersion filter output (11) as a result of varying frequency-dependent signal transit-times through said filter and appear thus with slight temporal imprecision.
Patent CA-2270141-A1 (CA)
Title: Friction drive apparatus for strip material
Inventor: WEBSTER RONALD B
IPC: B41J11/42
Filed: 1999-04-23
Abstract: A friction drive apparatus (10) for feeding strip material (12) in a longitudinal direction includes a first friction wheel (34) and a second friction wheel (36) rotated by a first motor drive (40) and a second motor drive (42), respectively. The friction drive apparatus (10) also includes a sensor (58) disposed behind the friction wheels (34,36) with respect to the motion of the strip material (12) to detect a lateral or skewing error and a motion processor (54) that drives the first and the second motor drives (40,42) independently at different speeds to correct the lateral or skewing error of the strip material (12). The friction drive apparatus (10) also detects a longitudinal error of the strip material (12) by tracking an actual position of the strip material (12) and comparing it to the commanded position to correct the error. If there is a discrepancy between the actual position and the commanded position of the strip material (12), the rotational speed of each friction wheel (34,36) is either decreased or increased to correct any longitudinal creep or slippage, respectively, of the strip material (12).
Patent CA-2271563-A1 (CA)
Title: Computer/numerically controlled machines
Inventor: YEAP TET HIN
IPC: G05B19/416
Filed: 1999-05-13
Abstract: A computer-numerically controlled material removal machine, such as a milling machine, lathe, grinding machine, shaping machine, or the like, has drive units for moving the workpiece and the cutting tool to cause the tool to remove material from the workpiece and a computer-numerical control unit for controlling the drive units so as to optimize material removal rates. In some embodiments, the control unit senses electrical energy consumption rate at a cutting tool drive motor and vanes either or both of cutting tool speed and workpiece feed rate to maintain the energy consumption rate substantially equal to a preset reference level. In other cases, the control unit derives a signal representing force exerted between the cutting tool and the workpiece, whether by sensing power or by using a dynamometer to measure force between the workpiece and the cutting tool, and controls a plurlity of variables, conveniently by means of a fuzzy logic controller.
Patent CA-2276009-A1 (CA)
Inventor: RAMANATHAN RAVI
IPC: B32B1/08
Filed: 1997-12-22
Abstract: A multilayer laminate structure comprising (A) one or more layers of a polyolefin or a blend of two or more different polyolefins; and (B) one or more layers of a fuel barrier polymer or blends thereof, the fuel barrier polymer or blends thereof having a Fuel CM15 permeability of 45 g-mil/m2-day or less, based on a layer thickness of 1 mil, when measured at 40 ~C and under ambient pressure conditions of 700 to 760 torr; and optionally (C) a tie layer interposed between a polyolefin layer and an adjacent fuel barrier layer; and/or optionally (D) a regrind layer interposed between a tie layer and a polyolefin layer.
Patent CA-2278112-A1 (CA)
Title: Icon referenced panoramic image display
Inventor: NALWA VISHVJIT SINGH
IPC: G02B27/14
Filed: 1999-07-21
Abstract: Panoramic images are displayed with referencing icons that assist the user in conceptualizing the panoramic image as an unrolled cylindrical representation of a panoramic image. Icons above and below the image indicate a cylinder by their substantially elliptical shape. The icons also include left and right extensions with reference marks that give the impression of a cylindrical surface being unrolled. As a result, a user more readily understands the relationship between objects in different parts of the panoramic image.
Patent CA-2278357-A1 (CA)
Title: Knee orthosis
Inventor: PRAHL JAN
IPC: A61F5/01
Filed: 1999-07-22
Abstract: The invention provides an orthosis for the knee with at least one joint which has two rails slewably joined together at a swivel, whereby a stopper is provided for on at least one rail, which stopper limits a maximal extension movement of the joint, which increases the patient's wearing comfort and acceptance. At least one of the rails constituting the joint has at least one slit, adjacent to the stopper, with an open side and opposite slit walls, which. is arranged in such a way that a striking of the rails, the ones against the other, at a maximal predetermined extended position moves the slit walls, the one towards the other, by elastically deforming a material of the rail.
Patent CA-2280144-A1 (CA)
Inventor: CHEVALIER JOHN PHILLIP
IPC: E05B65/36
Filed: 1997-12-12
Abstract: A latch arrangement for releasably retaining a striker (10), comprising a latch bolt (11) shaped to retain the striker at a latching position, and to release the striker at an unlatching position of the latch bolt; a locking mechanism (20) moveable between a locking position, at which it retains the latch bolt (11) at its latching position, and an unlocking position, at which it allows the latch bolt (11) to move to its unlatching position; means for linking the locking mechanism (20) to a latch-opening external manual control such as a door handle; drive means (50, 60) coupled to the locking mechanism (20) and/or the latch bolt (11) for powered actuation thereof to latch or unlatch the locking mechanism and/or to drive the latch bolt to its latching position or to its unlatching position; a rotary clutch coupling the drive means to an electrical drive motor; and a clutch release mechanism drivingly coupled to the said external manual control such that operation of the latch-opening external manual control isolates the latch bolt and locking mechanism from the drive means (50, 60).
Patent CA-2281437-A1 (CA)
Title: Additive color electric paper without registration or alignment of individual elements
Inventor: SILVERMAN ALEXANDER E
IPC: G09F9/37
Filed: 1999-09-08
Abstract: Several variations in full-color additive gyricons are shown. Each gyricon shown has been designed for ease of construction by eliminating the need for precise placement of rotating elements, alignment between the gyricon layers, if any, and alignment between the gyricon sheet and the addressing device.
Patent CA-2284926-A1 (CA)
Inventor: MOULTON DANIEL T
IPC: C21D9/573
Filed: 1998-03-24
Abstract: La présente invention concerne un procédé faisant intervenir un dispositif de trempe variable contrôlée dans un liquide. La trempe, qui porte en l'occurrence sur des alliages métalliques dont la température se trouve au-dessus du point de Leidenfrost, ne provoque aucune distorsion de l'alliage de métaux.
Patent CA-2287304-A1 (CA)
Inventor: LOFSTAD ERIC W
IPC: G08C17/00
Filed: 1999-03-03
Abstract: A meter reading system preferably includes an external modem module (EMM), a hub and a data collection system. The EMM communicates with one or more utility meters and, as such, is preferably selected on the basis that it incorporates a communication format that is compatible with the communication format of the utility meter such that the utility meter does not require modification to be communicatively coupled to the EMM. The EMM obtains meter data from the utility meter and converts to a radio frequency communication format. The radio frequency formatted data is then transferred to the hub. The hub then translates the radio frequency data into an analog or digital telephone communication format, which is then transferred to the data collection system for use by the utility as desired, e.g. utility billing, tracking, control, etc. The data collection system need only recognize one communication format rather than attempting to accommodate numerous message formats such as wires, coaxial cable, optical fiber, or radio frequency.