baber/WOPTO huggingface dataset:
Patent CA-2185357-A1 (CA)
Title: A packet data communications system
Inventor: ALLES MARTIN C
IPC: H04L12/56
Filed: 1995-10-05
Abstract: A method of setting a channel congestion message in a wireless multiple access packet data system in which the channel congestion message is broadcast on the forward channel of the system and communication over the reverse channel is in the form of bursts. The method comprises the steps of: measuring an actual fraction of undecodable bursts on the reverse channel; measuring traffic parameters of the reverse channel; predicting from the measured traffic parameters an expected fraction of undecodable bursts for optimum throughput on the reverse channel; comparing the actual and expected fractions of undecodable bursts; and setting the congestion message according to the result of the comparison. A controller for implementing the method is also provided.
Patent CA-2187643-A1 (CA)
Title: A second-order leaky bucket device and method for traffic management in cell relay networks
Inventor: HLUCHYJ MICHAEL G
IPC: H04L12/56
Filed: 1995-12-06
Abstract: A traffic management policing device (TMPD) (600) and method (TMPM) (700) monitor and substantially enforce a sustainable cell rate (SCR) and burst tolerance (BT) in a cell relay network utilizing a second-order leaky bucket system in conjunction with a peak cell rate (PCR) leaky bucket, thus substantially providing a predetermined quality of service.
Patent CA-2198578-A1 (CA)
Title: Use of estrogen antagonists and estrogen agonists in inhibiting pathological conditions
Inventor: THOMPSON DAVID D
IPC: A01N43/36
Filed: 1997-02-26
Abstract: Disclosed is a pharmaceutical composition for inhibiting pathological conditions related to organ systems which respond to estrogen agonists in a mammal.  The composition comprises an effective amount of a compound of formula I                          (see fig.I) (wherein A is CH2 or NR; R is H or alkyl; B, E and D are each CH or N; Y is a cyclic group such as phenyl; Z1 is a divalent group such as -OCH2CH2-; G is an optionally substituted amino such as piperidino or pyrrolidino; and e is 0, 1 or 2).
Patent CA-2199569-A1 (CA)
Inventor: PANZERA CARLINO
IPC: A61K6/06
Filed: 1997-03-10
Abstract: A two-phase porcelain composition for dental restorations comprising a leucite crystallite phase dispersed in a feldspathic glass matrix, a maturing temperature of from about 750° to about 1050°C and a coefficient of thermal expansion of from about 12x10-6/°C to about 17.5x10-6/°C, said porcelain composition comprising:            Component           Amount (wt. %) SiO2                57-66 Al2O3               7-15 Na2O                7-12 Li2O                0.5-3 CaO                 0-3 MgO                 0-7 CeO2                0-1 wherein the leucite crystallites possess diameters not exceeding about 10 microns and represents from about 5 to about 65 weight percent of the two-phase porcelain composition.
Patent CA-2199829-A1 (CA)
Title: Soap-Free Self-Foaming Shave Gel Composition
Inventor: GEORGE ROBERT C
IPC: A61K8/44
Filed: 1995-09-20
Abstract: The present invention comprises a soap-free self-foaming shave gel composition which maintains superior performance attributes while avoiding the harshness and drying associated with soap-based shave preparations. The shave gel composition of the present invention comprises water, a water-soluble sarcosinate salt, a volatile self-foaming agent, and a non-volatile paraffinic hydrocarbon fluid.
Patent CA-2200078-A1 (CA)
Title: Internal combustion engine silencer device
Inventor: FERRI ALAIN
IPC: F01N13/16
Filed: 1996-07-16
Abstract: A device that is simple to manufacture and uses austenitic stainless steel components is disclosed. The device consists of a nozzle (1) comprising a cone and a cylinder made of a single perforated sheet of metal with alternating holes of different diameters along the whole length thereof. The outer shell consists of a cylindrical and optionally tapered front portion (2), and a tapered rear end portion (3) ending in an angled trailing edge gas exhaust tube. This geometrical arrangement increases the available volume and accelerates the flow without generating back pressure. The space between the nozzle and the outer shell is filled with austenitic stainless steel wool (4). The device not only substantially reduces noise levels relative to existing systems, but is also easy to install, remove and maintain and has improved durability.
Patent CA-2200136-A1 (CA)
Title: Method for protecting electronic circuit components and assemblies using a metallized flexible enclosure
Inventor: DAHRINGER DONALD WILLIAM
IPC: H05K1/02
Filed: 1997-03-17
Abstract: An assembly for protecting the active electronic components of an electronic product from the environment and electromagnetic interference (EMI). A method is described where the assembly is formed by providing a metallized flexible enclosure around the electronic product, such as a printed circuit board, and subsequently sealing the metallized flexible enclosure, such that separable connectors can be readily accessed without violating the integrity of the seal. The metallized flexible enclosure includes multiple layers of polymeric materials that provide diffusion barrier properties and a metallic layer that provides both diffusion barrier properties and EMI shielding capabilities. The multiple layer sheet is patterned to optimize the diffusion barrier properties and EMI shielding capabilities. Further, the multiple layer sheet enables efficient, high volume production.   Thus, electronic products can be provided with an assembly having an environment protection capability and EMI shielding capability amenable to reliable and cost effective high volume production.
Patent CA-2206407-A1 (CA)
Title: Ground penetrating sonar
Inventor: EARP RONALD LEE
IPC: G01S15/00
Filed: 1997-05-28
Abstract: A ground-penetrating sonar echo locating device uses acoustic energy to locate underground structures, such as piping. A transducer, driven with two frequencies whose amplitudes would be rapidly attenuated in surface or through-the-ground transmission, is directed toward the ground through a silastic waveguide having a non-linear characteristic that produces a narrow beam of acoustic energy having negligible side lobes at a third frequency that is relatively unattenuated in ground transmission to produce reflections indicative of sub-soil conditions.
Patent CA-2209427-A1 (CA)
Title: Compositions and methods for use in aquaculture
Inventor: LARSON STEVEN DAY
IPC: A01K61/00
Filed: 1996-01-02
Abstract: Controlled release fertilizer compositions which release fertilizer at a controlled rate over an extended period of time are employed in aquaculture treatment methods whereby nutrients are efficiently and effectively released into closed aquatic ecosystems such as ponds, lakes, watersheds and other aqueous environments over a period of time in order to enhance the growth of phytoplanktonic algae populations in the water and to thereby promote marine life populations.
Patent CA-2209636-A1 (CA)
Title: Automotive accessory drive pulleys incorporating spiral type one-way clutch
Inventor: KERR JOHN HUGH
IPC: F02B67/06
Filed: 1996-01-09
Abstract: In an accessory drive system for an internal combustion engine, in one of the pulleys (P1 - P6) (e.g. on the engine crankshaft, the alternator, a hydraulic pump) is incorporated a one-way clutch to isolate oscillations from the engine. The clutch preferably has roller bearings (5) in a saw tooth spiral channel (23), defined by an inner and/or an outer slipper member (3, 105, 106), which/each of which engages a cylindrical bearing race (4a, 15, 29) of an adjacent inner or encircling member (2, 4). The slipper member (3, 3a) may be split and elastically sprung against the adjacent bearing race (4a, 15, 29) or segmented, the springs (6, 6a, 110) being interposed between the rolling bearings (5, B1 to B11).
Patent CA-2212721-A1 (CA)
Title: Method and apparatus for the manufacture of brushware and brushware manufactured according thereto
Inventor: WEIHRAUCH GEORG
IPC: A46B3/20
Filed: 1996-02-14
Abstract: Bristled articles comprise a rubber-elastic carrier having at least one recess accommodating a cluster of bristles which comprises at its fastening-side end a thickened portion which connects the bristles and whose cross-section is larger than that of the cluster and larger than the narrowest cross-section of the recess. The resilience of the carrier material is set as a function of the ratio of the cross-sections of the recess and thickened portion such that the cluster of bristles can be driven into the recess by a force acting on the thickened portion and, when the cluster of bristles has been driven in, the thickened portion is held in an interlocking manner as a result of resilient recovery of the bristle material. The length of the bristle cluster located in the carrier is tightly embraced thereby.
Patent CA-2213994-A1 (CA)
Title: A two-way paging system and apparatus
Inventor: DENT PAUL W
IPC: H04L1/00
Filed: 1996-03-08
Abstract: Paging systems typically include a network of ground stations or orbiting satellites equipped with transmitters and antennas for transmitting paging messages to small, battery-operated paging receivers that are worn about the person, known as pagers. Conventional pagers are receive only devices and the network receives no confirmation that paging has been successful. The present invention includes the provision of two-way pagers that contain a transmitter for transmitting an acknowledgment confirming reception of a paging message, and a network of receiving stations able to receive said acknowledgments. The network makes use of advanced phased-array antenna signal processing techniques to render the return link operable with much less transmitter power in the portable unit than employed by the base station.
Patent CA-2214346-A1 (CA)
Inventor: WIEDEMAN ROBERT A
IPC: H04W84/18
Filed: 1997-08-29
Abstract: Système de communication qui comprend un composant de communications par satellite ayant au moins un satellite et au moins une passerelle terrestre, et également un composant de communication terrestre sans fil ayant au moins un répéteur et au moins un centre de commutation mobile. Au moins une passerelle et au moins un centre de commutation mobile sont couplés l'un à l'autre par un premier réseau de pièce pour service mobile (MAP), tel qu'un réseau IS-41 ou un réseau GSM MAP. Au moins une passerelle et au moins un centre de commutation mobile sont en outre couplés à un réseau de télécommunications terrestre (PSTN). Le système comprend en outre au moins un terminal utilisateur à mode double ou plus ayant un premier émetteur-récepteur pour une communication bidirectionnelle avec la passerelle par l'intermédiaire du satellite, un second émetteur-récepteur pour une communication bidirectionnelle avec le centre de commutation mobile par l'intermédiaire du répéteur, et une unité de commande, en réponse à un protocole sélectionné par un utilisateur ou sélectionné par une passerelle, pour permettre sélectivement l'un ou l'autre du premier ou du second émetteur-récepteur de transmettre une communication d'utilisateur au réseau de communication terrestre.
Patent CA-2217598-A1 (CA)
Inventor: JANTZ JAMES F
IPC: G01N27/72
Filed: 1997-10-07
Abstract: An apparatus and method for generating a narrow magnetic flux field, whereby small variations in surface contour of a ferromagnetic object can be detected at relatively large distances by measuring changes in magnetic force.  The apparatus includes a hollow energized coil having an axis, a core axially aligned and axially movable with magnetic attraction, and a load cell to detect axial movement of the core, as the core moves axially when attracted to a foreign magnetic object.  Preferably, the core diameter is approximately 25-30% of the coil diameter.
Patent CA-2220948-A1 (CA)
Inventor: LEHWALD DIETER
IPC: B32B5/18
Filed: 1996-02-14
Abstract: The invention pertains to sheet-like absorbents for water and aqueous solutions, containing A) at least one water-swellable, synthetic and/or natural superabsorbent polymer and B) at least one water-soluble, synthetic and/or natural polymer in the form of a sheet-like matrix, into or onto which the superabsorbent component A) is bonded with a defined distribution. The sheet-like absorbents have increased power to absorb water and aqueous fluids, especially under load. They are produced by forming a sheet-like matrix from the water-soluble synthetic and/or natural polymers B) and adding to these the water-swellable synthetic and/or natural superabsorber A), e.g. by applying a solution of matrix B) to a surface, sprinkling component A) thereon and drying the resulting flat structure. Such sheet-like absorbents are used in hygienic products, as components in natural or artificial soils, as insulating material for pipes and lines, especially cables, and building units, as liquid-absorbing and -retaining components in packing materials, incorporated in clothing and as stores for controlled release of an active substance.
Patent CA-2221290-A1 (CA)
Title: Double deck fold-up pallet
Inventor: BROWN HENRY F
IPC: B65D19/00
Filed: 1997-12-11
Abstract: A single twin-sheet thermoformed plastic part has parallel bands of plastic forming fillets which allow stiff pallet deck segments to be folded after forming and locked together into a support structure with a planar upper deck spaced above a pallet lower deck with openings for lift truck tines. The lower deck has two segments joined by side stringers to the upper deck. Two central stringer segments extend along folding fillets from lower deck half segments to lock into place with the upper deck. The pallet is locked in its assembled configuration by a rod which passes through knuckles formed beneath the central stringers. The monocoque construction of the pallet provides for advantageous stiffness and load support capacity, while at the same time being economical to produce. For increased load-carrying capability, the pallet may be formed with a reinforcing substrate.reinforced with a tubular steel insert. The pallet has interleaved step structure adjacent each plastic fillet which transfers vertical loads and also resists lateral deformation of the pallet.
Patent CA-2223705-A1 (CA)
Title: One step assay method for detecting end product of nucleotide amplification products such as polymerase chain reaction (pcr)
Inventor: ZHU JIA BEI
IPC: B01L3/00
Filed: 1998-02-25
Abstract: Polymerase Chain Reaction (PCR) is a process to amplify a specific segment of DNA from minute amount of genetic material such as blood drops or hairs. Traditional method for detecting the amplified DNA product is by using the agarose gel electrophoresis for size separation. And then the ethidium bromide treated gel will be observed under UV light. In this invention, one step assay test strip is used to detect the amplified product directly after the PCR process in a fast and convenient way. The use of ethidium bromide and agarose gel electrophoresis are not required.
Patent CA-2225113-A1 (CA)
Inventor: LANGSETH BIRGER
IPC: C22B26/22
Filed: 1997-12-17
Abstract: Method of treatment of environmentally hazardous waste material and recovering MgCI2 brine, based on dissolving of the waste material in water and hydrochloricacid and simultaneous removal of ammonia at elevated temperatures, destruction of residual aqueous ammonia and removal of Mn, where the material is pre-treated in a special mixing unit adding water to provide a slurry and where hydrogen and other evolved gases are continuously diluted.
Patent CA-2227834-A1 (CA)
Inventor: PIELARTZIK HARALD
IPC: C08G65/28
Filed: 1998-01-22
Abstract: Polyether polyols are produced by acid-catalyzed polyaddition of alkylene oxidesto starter compounds having active hydrogen atoms. Perfluoroalkylsulfonic acid salts of metals from Group IIIA of the Periodic Table of Elements (correspondingto the IUPAC Convention of 1970) are used as the catalyst. The polyaddition reaction is carried out at a temperature of from 40 to 200°C at normal pressure or pressures from 0 to 20 mbar (absolute). An inert organic solvent may optionally be included in the reaction mixture. Substantially all of the catalyst is removed from the polyether polyol-containing reaction mixture by lowering the temperature and/or by addition of a precipitating agent and/or by extraction with water. If desired, the recovered catalyst may be used in subsequent polyaddition reactions.
Patent CA-2230472-A1 (CA)
Inventor: WITT STEPHEN H
IPC: B65D41/32
Filed: 1998-02-25
Abstract: A one piece molded push on tamper resistant closure suited for reusable bottles such as milk bottles comprises a cap portion and a latch ring portion connected thereto by frangible tabs. Rupture of the tabs serves to detach the cap portion to permit its removal from the bottle, while simultaneously opening the latch ring portion to permit it to be removed laterally from about the neck of the bottle. The closure may also include a pull tab disposed on the cap portion to provide a levered force for rupturing the frangible tabs.
Patent CA-2230485-A1 (CA)
Inventor: TSUCHIDA EISHUN
IPC: A61K9/127
Filed: 1998-02-25
Abstract: Disclosed are (1) a glycolipid derivative in which a nitrogen atom-containing hydrophobic group is introduced into an anomer carbon atom of a reducing end group of an oligosaccharide having a saccharide polymerization degree of 5 to 30, and (2) a phospholipid vesicle stabilizer comprising a glycolipid derivative in which a nitrogen atom-containing hydrophobic group is introduced into an anomer carbon atom of a reducing end group of an oligosaccharide having a saccharide polymerization degree of 2 to 30.
Patent CA-2230608-A1 (CA)
Title: Concrete-made panel and method of fabricating the same
Inventor: NAKAMURA MITSUO
IPC: B28B23/02
Filed: 1997-06-20
Abstract: A pair of first and second concrete layers (1, 2) spaced away from each other by a certain distance are connected to each other through a corrugated plate (3) having a uniform magnitude of amplitude so that there are formed a space between the concrete layers (1, 2). A weight of a concrete-made panel is decreased by this hollow structure. A corrugated plate (3) is designed to have a trapezoidal cross-section of rectangular corrugation. By sinking mountain and valley portions of the corrugated plate into the first and second concrete layers (1, 2), the concrete-made panel can have enhanced compressive strength in a direction of corrugation of the corrugated plate (3), and have enhanced rigidity because of diagonal members of a truss. which keeps the concrete-made panel being kept to be a plane.
Patent CA-2231484-A1 (CA)
Title: Smoking article wrapper for controlling ignition proclivity of a smoking article without affecting smoking characteristics
Inventor: PETERSON RICHARD M
IPC: A24D1/02
Filed: 1998-03-09
Abstract: A smoking article wrapper has discrete areas of reduced permeability for improving ignition proclivity characteristics of a smoking article. The reduced permeability areas define a gradually decreasing permeability profile in a burning direction of the smoking article such that permeability reduction in the reduced permeability areas increases from a minimum reduction to a maximum permeability reduction in the burning direction of the smoking article.
Patent CA-2233906-A1 (CA)
Title: Transition-controlled digital encoding and signal transmission system
Inventor: KIM SUNGJOON
IPC: H04N7/52
Filed: 1996-09-30
Abstract: A method and apparatus for producing a transition-controlled, DC-balanced sequence of characters from an input sequence of data bytes is disclosed herein. The bits in each of the data bytes are selectively complemented in accordance with the number of logical transitions in each data byte in order to produce selectively complemented data blocks. A  cumulative disparity is then determined between the logical values of different type included within ones of the selectively complemented data blocks previously encoded into characters. In addition, a current disparity in a candidate character associated with a current one of the selectively complemented data blocks being encoded is also determined. The candidate character is assigned to the current one of the selectively complemented data blocks if the current disparity is of a polarity opposite to a first polarity of the cumulative disparity.  Alternately, the complement of the candidate character is assigned to the current one of the selectively complemented data blocks if the current disparity is of the first polarity. In a high-transition mode of operation, the bits within data blocks including less than a minimum number of logical transitions are selectively complemented so that each such selectively complemented data block includes in excess of the minimum number of logical transitions. In a low-transition mode of operation, the bits within data blocks having more than a predefined number of logical transitions are selectively complemented so that each such selectively complemented data block includes less than the maximum number of logical transitions.
Patent CA-2236275-A1 (CA)
Inventor: THOMSON BRUCE
IPC: H01J49/34
Filed: 1998-04-28
Abstract: A time-of-flight mass spectrometer and method in which ions are trapped in a two-dimensional quadrupole, and are then pulsed through a gate into another two-dimensional quadrupole where they are further trapped until they are extracted sideways through one of the electrodes of the extraction region quadrupole, into the flight tube of the TOF mass spectrometer. This increases the efficiency of transmitting ions into the TOF tube, increasing sensitivity.
Patent CA-2236820-A1 (CA)
Title: Method of dissolving a hardened glass solder, method of separating components joined by a glass solder, method of dismantling a fuel cell and device for dismantling a fuel cell
Inventor: GREINER HORST
IPC: H01M8/008
Filed: 1996-10-24
Abstract: The method of dissolving a hardened glass solder (16) involves heating the solder (16) in a hydroxide melt (6). This ensures that the components (12, 14) which were joined by the hardened glass solder (16) can be reused or recycled.
Patent CA-2237303-A1 (CA)
Title: Magnetic displacement sensor
Inventor: DILGER JOHN PATRICK
IPC: G08C21/00
Filed: 1996-11-12
Abstract: A displacement sensor senses relative displacement between first and second members and includes a housing mounted to the first member. Magnet means having first and second pole tips is mounted to the housing. A flux sensor is mounted to the housing between the first and second pole tips. A target is mounted to the second member to form a flux path between the first and second pole tips having a reluctance that varies with displacement between the first and second members. The arrangement forms a first lossy flux path of fixed reluctance through the flux sensor and a primary flux path through the target.      In one form the target has a surface configured to provide a gap height that varies with displacement. In another form the target has a surface configured to provide a target width that varies with displacement.      The sensor may be used differentially by arranging two such sensors.
Patent CA-2242632-A1 (CA)
Title: Use of an antagonist of ppar-alpha and ppar-gamma for the treatment of syndrome x
Inventor: SMITH STEPHEN ALISTAIR
IPC: A61P1/00
Filed: 1997-01-07
Abstract: A method for the treatment and/or prophylaxis of Syndrome X in a human or non-human mammal, which method comprises the administration of an effective, non-toxic and pharmaceutically effective amount of an agonist of PPAR.alpha. and PPAR.gamma., or a pharmaceutically acceptable derivative thereof, to a human or non-human mammal in need of such treatment, and certain compound for use in such method.