baber/WOPTO huggingface dataset:
Patent CA-2058984-C (CA)
Inventor: MUNDAY EDWARD
IPC: H04S1/00
Filed: 1990-06-15
Granted: 1998-12-01
Abstract: L'invention est un système audioconférence polyphonique (stéréophonique par exemple) dans lequel les canaux d'entrée gauche et droit sont ordonnancés temporellement par des étages à retardement variable (10a, 10b) et contrôlés par un calculateur de retard (9) (lequel, par exemple, peut effectuer ce contrôle en déterminant la corrélation maximale) et les signaux de ces canaux sont sommés dans un additionneur (2) et soustraits dans un soustracteur (3) pour former les signaux de somme et de différence. Le signal de somme est transmis avec une qualité relativement élevée; le signal de différence est reconstruit au décodeur à partir de prédictions fournies par le signal de somme, en utilisant un filtre adaptatif (5). Le filtre adaptatif (5) du décodeur est configuré par les coefficients de filtrage reçus ou, à l'aide d'une adaptation inverse, à partir d'un signal résiduel reçu qui est produit par un filtre adaptatif correspondant (4) dans le codeur, ou de ces deux façons. Dans la concrétisation privilégiée de l'invention, ce filtre adaptatif (4) est un filtre en treillis qui utilise un algorithme à gradient pour la mise à jour des coefficients. La complexité du filtre adaptatif (4) est réduite en préblanchissant dans le codeur les signaux de somme et de différence au moyen de filtres de blanchissement correspondants (14a, 14b) obtenus du canal du signal de somme.
Patent CA-2060381-C (CA)
Inventor: TOKITA NOBORU
IPC: B29K21/00
Filed: 1992-01-30
Granted: 2000-12-19
Abstract: Joining elastomeric sheets includes providing a support surface With a cavity therein. End portions of the elastomeric sheets are overlapped so each end portion spans the cavity. A tool is located on a side of the elastomeric sheets opposite the cavity. A portion of the tool is moved into the cavity to deform the end portions of the elastomeric sheets and to form a joint having less than the combined thickness of the end portions of the elastomeric sheets prior to deformation.
Patent CA-2060567-C (CA)
Title: Apparatus for embossing a fibrous web
Inventor: SCHULZ GALYN ARLYN
IPC: B31F1/07
Filed: 1992-02-03
Granted: 1997-06-10
Abstract: An apparatus for embossing a fibrous web includes a mated pair of resilient and rigid embossing rolls wherein the resilient roll is formed e.g. by laser burning, with recesses adapted to receive protuberances on the rigid male embossing roll when the rolls are placed in contact.  By providing recesses on the resilient roll, the pressure or force required for causing the resilient material, e.g. rubber, to flow around the protuberances can be significantly decreased as compared to conventional rubber to steel embossing.  As a result, wear on the rolls is reduced, and smaller diameter rolls may be utilized, thereby reducing the cost of the embossing equipment.  In addition, since less pressure is required to cause the rubber to flow about the protuberances, roll deflection is not a problem, and an embossed pattern can be imparted having a consistent, high degree of definition across the width of a web.
Patent CA-2064144-C (CA)
Inventor: NIITTI TIMO U
IPC: B03D1/14
Filed: 1992-03-26
Granted: 1998-09-15
Abstract: The invention relates to a flotation machine for flotating minerals and the like from slurries containing these particles, the said flotation machine comprising a flotation cell and a mixer mechanism provided in the cell, means for introducing air into the cell and means for feeding the material to be flotated into the cell and for removing it therefrom.  According to the invention, in the slurry chamber (2, 18) of the flotation machine, essentially below the foam bed (4, 21) created in the flotation machine, there is arranged at least one guide  member (3, 19, 32), so that the free area of the flotation machine, essentially at least in the slurry chamber (2, 18) below the foam bed (4, 21) can be reduced when proceeding upwards.
Patent CA-2065448-C (CA)
Title: Sizing tool
Inventor: LEHTINEN REIJO
IPC: B29C48/90
Filed: 1990-09-12
Granted: 1995-08-01
Abstract: The invention relates to a sizing tool for extruding plastic tubing (1). The tool (5) is placed in a cooling vat after the extruder, and it defines the outer dimension of the tubing to be made by pressurizing or sucking the tubing against the inner surface of the tool. The wall of the tool has a lubricating water channel system (12) extending along the whole tool length, from which system water is led onto the surface of the tubing (1). In addition to this, the tool has a separate, closed cooling medium channel system (15) also extending along the tool length.
Patent CA-2065861-C (CA)
Title: Process for the manufacture of budesonide
Inventor: HOFSTRAAT ROBERT G
IPC: C07J71/00
Filed: 1990-09-27
Granted: 2001-06-05
Abstract: The present invention relates to a novel process for the manufacture of (22 R,S)-16.alpha., 17.alpha.-butylidenedioxy-11.beta., 21-dihy-droxypregna-1,4-diene-3,20-dione (I) by reacting 11.beta., 16.alpha., 17.alpha., 21-tetrahydroxypregna-1,4-diene-3,20-dione (II) with butanal, CH3CH2CH2CHO in acetonitrile with p-tolyuenesulphonic acid as a catalyst.
Patent CA-2067764-C (CA)
Title: Message reminder alert for selective call receiver
Inventor: HENRY COURTNEY S
IPC: H04W88/02
Filed: 1990-09-04
Granted: 1993-09-07
Abstract: A selective call receiver comprises a combination message received/message reminder alert (106). When the central processing unit (108) detects that a message is received, the alert (106) is activated until the user activates a read/reset switch (111). The message reminder alert is controlled by a reminder switch (113) and operates independently of the receipt of subsequent messages. The message reminder alert has period and duration of alert (106) activation distinct from the message received alert.
Patent CA-2072925-C (CA)
Inventor: AMANO TADASHI
IPC: C08F2/18
Filed: 1992-07-02
Granted: 1998-02-17
Abstract: An improvement is proposed in a polymerization reactor system for the suspension polymerization of vinyl chloride monomer comprising a reactor and an external heat exchanger connected to the reactor by a pipe line through a pumping means in order to supplement the deficiency in the cooling capacity of the jacket of the reactor and/or reflux condenser installed thereto when the capacity of the reactor is greatly increased. While such an external circulating circuit using a conventional pump suffers from a serious problem of polymer scale deposition on the inner walls of the circuit and degradation of the quality of the resin product, these drawbacks can be dissolved by using a specific pump having an impellor in the form of a single spiral screw blade around a hub having a conical configuration for the circulation of the polymerization mixture through the heat exchanger.
Patent CA-2073471-C (CA)
Title: Process for producing fine flaky alumina particles and alumina-based plastic material
Inventor: FUKUDA TAKESHI
IPC: C01F7/021
Filed: 1992-07-08
Granted: 1998-05-19
Abstract: The present invention provides a process for producing fine flaky alumina particles which are suitable as a raw material for ceramics, a pigment for paint and etc., wherein aluminum hydroxide or alumina hydrate having a particle size regulated to the order of submicron is subjected to a hydrothermal treatment in water or an aqueous alkali solution at a temperature of 350°C or above and under a pressure of 200 kg/cm2 or below.  The present invention further provides an alumina-based plastic material which is produced by kneading the aforesaid fine flaky particles with an organic water holding material and water. Methylcellulose, polyvinyl alcohol, carboxymethylcellulose, polyethylene glycol, etc. are preferably used as the organic water holding agent. The alumina-based plastic material has a high plasticity, so that there is no need of using a large amount of a binder.  Thus a dense molded article having stable properties can be prepared.
Patent CA-2078211-C (CA)
Inventor: ZIMMON DAVID S
IPC: A61F2/94
Filed: 1991-03-27
Granted: 2001-10-02
Abstract: A stent (21) is disclosed having a pigtail (33) at its distal end (35) and having a flap (23) acting as a barb at its proximal end (29). Stent (21) includes a catheter body (31) having at least one lumen (43) and having drainage holes (37, 39). The stent may be made of radiopaque polyethylene. The pigtail (33) prevents entire proximal migration of catheter body (31) while allowing spring action to accommodate variations in length, while flap (23) prevents entire distal migration while being radially retractable to facilitate insertion. An alternative embodiment is disclosed having multiple flaps (25, 27) acting as a barb. A method of use is also disclosed.
Patent CA-2080447-C (CA)
Title: Magnetic inspection machine
Inventor: ASHWORTH ROGER PHILIP
IPC: G01N27/82
Filed: 1992-10-13
Granted: 1997-12-16
Abstract: The vehicle has two groups 24, 26 of foils which transfer flux to and return flux from a wall 10 of a pipeline.  The flux is from a coil 20 or from a permanent magnet or magnets.  Each group is a single group of common foil members 59 interleaved with spacers 69; or alternatively each group contains sets of common foil elements such as six sector-shaped sets, for example.          Each foil 59 and each spacer 69 is cut from steel,for example stainless steel.  Each foil 25 is an outwardly-directed resiliently-deflectable foil integral with the common foil member forming an array around the vehicle.  The foils are separated by slots 63,preferably V-shaped.  The sets are clamped together by retainers 73 and pins 71.  In the pipe 10 the foils deflect as indicated by broken lines 32, 34.  The length of each foil is at least 200 times its thickness.  The foil separation divided by their thickness is at least unity.  Sensors 28 detect leakage flux due to metal loss from the wall.
Patent CA-2081911-C (CA)
Title: Method and composition for treating psoriasis
Inventor: SMITH STEVEN A
IPC: A61K33/24
Filed: 1991-04-10
Granted: 2002-10-01
Abstract: Psoriasis molecules are treated by administering non-toxic pharmaceutically acceptable solutions (topically, orally or by I.V.) of a composition containing nickel with a bromide carrier.
Patent CA-2082885-C (CA)
Title: Admission managing system
Inventor: SASAKI MICHIYUKI
IPC: G06Q50/00
Filed: 1992-11-13
Granted: 1996-12-31
Abstract: An admission managing system manages admission of a card holder of an integrated circuit card which has a part for operating by a power induced by an external command, a memory for storing identification information and a part for at least communicating in a non-contact manner including reception of the command and transmission of the identification information.  The admission managing system includes a gate for admitting the card holder of the integrated circuit card when opened, a first part for transmitting the command and for receiving the identification information received from the integrated circuit card in response to the command, a second part for storing identification information of authorized card holders to be admitted, a third part for opening the gate when the identification information received by the first part from the integrated circuit card is identical to one of the identification information stored in the second part, and a fourth part for outputting a warning to the card holder if a number of times the same identification information is received by the first part from the integrated circuit card exceeds a predetermined value.
Patent CA-2084964-C (CA)
Inventor: NAKAMURA TAKAO
IPC: C23C14/56
Filed: 1992-12-09
Granted: 1998-02-17
Abstract: A MBE film deposition apparatus comprises a vacuum chamber provided with a partition wall for dividing the vacuum chamber into a first sub-chamber and a second sub-chamber, which are independently provided with a main evacuating apparatus and a auxiliary evacuating apparatus, respectively. The partition wall including an opening for introducing a vacuum impedance for molecular flows between the first sub-chamber and the second sub-chamber so that a pressure difference can be created between the first sub-chamber and the second sub-chamber when the opening is open. A gate valve is provided on the partition wall for hermetically closing the opening of the partition wall so as to shut off the molecular flows between the first sub-chamber and the second sub-chamber. At least one evaporation source is provided in the first sub-chamber, and a substrate holder is located within the second sub-chamber. A gas supplying apparatus is provided in the second sub-chamber so as to supplying a predetermined gas to the second sub-chamber.
Patent CA-2086997-C (CA)
Title: Production of rigid polyurethane foams, and a blowing agent mixture for this purpose
Inventor: VOLKERT OTTO
IPC: C08G101/00
Filed: 1993-01-08
Granted: 1997-11-11
Abstract: The invention relates to a process for the production of rigid polyurethane foams using  a  specific blowing  agent  mixture of  highly fluorinated  and/or  perfluorinated  organic  compounds, cyclopentane and, if desired, aliphatic and/or further cycloaliphatic hydrocarbons having 4 to 8 carbon atoms.
Patent CA-2091682-C (CA)
Title: System for determining liquid vapor pressure
Inventor: REED DONALD B
IPC: G01L7/00
Filed: 1991-10-10
Granted: 2000-12-19
Abstract: The vapor pressure of liquid compositions, particularly multi-component compositions, is measured by a piston and cylinder apparatus (14) defining an expansible chamber (84) in which a sample of liquid is trapped, the chamber (84) is expanded in multiple steps and multiple pressure and temperature measurements are taken at each expansion over a period of time. A resultant pressure at each expansion is determined from multiple measurements using the least squares method of approximation and the plural resultant pressure values are extrapolated to determine true vapor pressure using a straight-line approximation. The apparatus is adapted to continuously measure vapor pressure of a process stream by sampling a slipstream of liquid which is maintained at a constant temperature. The apparatus is mounted horizontally to minimize liquid depth and increase the rate of bubble formation during expansion of the chamber.
Patent CA-2092299-C (CA)
Inventor: PRATT CHRISTOPHER DAVID
IPC: H04L1/18
Filed: 1991-10-09
Granted: 1997-12-16
Abstract: A network traffic management system and method for a relay-based communications network such as Frame Mode Bearer Service (FMBS) in which terminals (A and B) are linked by nodes (N) through which calls are routed, consists of setting a Recovery Needed flag at a node on detection of incorrect transmission of a frame or congestion at a node which discards the frame. The destination terminal (B) is notified by transmitting a null frame giving rise to a negative acknowledgement (NAK) received at the source terminal (A). The discarded frame is retransmitted with a Recovery flag set. At the node (N) the Recovery nag is detected and the frame is transmitted toward the destination terminal in the normal way. If the Recovery flag is not set and the Recovery Needed flag is set the frame is discarded. In this way, the rest of the network is not burdened with the transmission of frames that will be discarded by the destination terminal in any event until the discarded frame is correctly received. Furthermore, discarding frames that will not ultimately be transmitted successfully allows more accurate monitoring of successfully completed frame transmissions in order that more accurate billing of the customer can be employed.
Patent CA-2094879-C (CA)
Title: Process for beverage tablets and products therefrom
Inventor: SMITH STACI LOUISE
IPC: A23F3/32
Filed: 1993-04-26
Granted: 2004-07-06
Abstract: A rapidly-dissolving, sugar-free beverage tablet is made by formulating a mix containing from 20 to 70% mannitol, from 1 to 20% water-soluble C02-generator, intensive sweetener and food acid. The mix is compressed in an externally-lubricated tabletting press to produce a friable tablet which is then surface glazed to produce a structurally stable tablet.
Patent CA-2095655-C (CA)
Title: Endoscopic cutting apparatus
Inventor: RECKELHOFF JEROME
IPC: A61B17/32
Filed: 1993-05-06
Granted: 2004-08-10
Abstract: An endoscopic cutting apparatus for use in endoscopic surgical procedures. The apparatus has a frame having a proximal end and a distal end. A handle is attached to the proximal end of the frame. Hook means are mounted to the distal end of the frame for engaging tissue or blood vessels. The hook means has a track means. Cutting blade means are mounted to said frame and are movable within said track means to cut tissue or blood vessels engaged within said hook means. Actuating means are mounted to the frame to actuate the cutting means in order to cut tissue or blood vessels engages within said hook means.      Optional rotation means are mounted to the frame to allow the hook means and cutting means to rotate with respect to the frame. Optional extension means extend and retract the hook means into and out of the distal end of the frame.
Patent CA-2096532-C (CA)
Inventor: SLODOWSKI OTTO
IPC: C07K14/00
Filed: 1991-11-14
Granted: 2002-12-31
Abstract: The invention concerns a new mutant of .gamma.-IFN. This new polypep-tide contains 134 amino acids. Amino acids 1 to 132 are the same as those of natural .gamma.-interferon. The first amino acid, methionine, in the zero posi-tion is also present, as has been demonstrated by protein sequencing. The amino acid in position 133 is leucine instead of glutamine. The invention also concerns DNA sequences and plasmid DNA (DSM 6238) which codes for this new polypeptide. The invention further concerns the use of the polypeptide as a drug as well as its use as a fine-chemical reagent for in vitro experiments.
Patent CA-2105570-C (CA)
Title: Mobile telephone, system and method
Inventor: WITTSTEIN ALAN D
IPC: H04M15/00
Filed: 1992-03-03
Granted: 2002-05-21
Abstract: The mobile telephone (62) is well adapted for use as a rental phone. It has an on-board computer (70) which computes and stores telephone usage and control information such as charges for usage of the telephone. Time and charge limits can be set for the telephone. For example, the telephone can be set to disable itself for all or a selected category of incoming and outgoing calls after the passage of a pre-determined time, and/or when the total usage charges reach a pre-determined maximum. Preferably, these limits can be set and adjusted remotely.
Patent CA-2108788-C (CA)
Inventor: OSTRO MARC J
IPC: A61K9/127
Filed: 1992-05-07
Granted: 2003-09-30
Abstract: A method of treating a cell activation/adhesion syndrome in mammals, including humans, by the administration of a pros-taglandin associated with a liposome is disclosed. Such cell activation/adhesion syndromes may include reperfusion injury, sep-tic shock, myocardial infarction, adult respiratory distress syndrome, rheumatoid vasculitis, systemic vasculitis, lupus, post trau-matic shock, burn injury or restenosis after angioplasty. In a preferred embodiment, the prostaglandin is encapsulated in the liposomes.
Patent CA-2112802-C (CA)
Inventor: GORDON OTTO
IPC: D21C11/00
Filed: 1993-04-30
Granted: 2005-07-19
Abstract: A process is proposed for the production of cellulose out of wood and annual plants, in which the digesting liquor contains free caustic soda, eventually sodium salts of alkyl benzenesulfonic acids, of aromatic or aliphatic carboxylic acids.      By addition of anthraquinone or its derivatives to the digesting liquor, the delignification is improved. The limitation of quantities for price reasons is eliminated, because anthraquinone is resistant to wet oxidation and can be reintroduced into the digesting process. The solubility and therefore the effectiveness of anthraquinone is improved by the use of sulfonic acid salts.      For the recovery of the digesting chemicals contained in the black liquor, it is proposed that the solubilized lignin is precipitated with mineral acid or carbon dioxide, that eventually the hemicelluloses are separated by ultrafiltration and the resins by extraction and that the residual organic compounds, except the sulfonates and the carboxylates, are burned in an aqueous phase with air and/or oxygen. The solution of chemicals, containing no more wood decomposition products, can by caustification of the carbonates be re-transformed into caustic soda and after partial crystallization of the aliphatic carboxylates be used for the cycle of pulp production. The sodium acetate isolated by crystallization can by means of membrane electrolysis be split in acetic acid and sodium hydroxide. The caustic soda is reintroduced to the digesting process, the acetic acid is treated separately.
Patent CA-2114959-C (CA)
Inventor: BEACH JOHN R
IPC: E04D15/00
Filed: 1990-01-26
Granted: 1995-05-16
Abstract: A machine for fastening one or more layers of roofing material to an underlayment, and a stackable washer therefor.  A chute receives a stack of such washers.  A shuttle displaces a single washer to a separated position when moved in one direction, to which the shuttle is biased, releases the single washer when moved oppositely.  A gate, which cooperates with camming surfaces on the respective washers, restrains the overlying washer in th stack against being displaced with the single washer and restrains the single washer from being displaced from the separated position.  Various components are provided by linking a stand-up screw gun of a known type to the shuttle.  The stackable washer is embossed so that each such washer and like overlying and underlying washers in a stack contact each other at three or more places, which define tangent planes intersecting planes defined by planar areas on such washers at angles more thant 45° but less than 90° whereby such washers are spaced from each other around their entire peripheries.  Notches in the washers cooperate with ribs in the chute to ensure that a stack of the washers is oriented properly when fitted into the chute.
Patent CA-2115005-C (CA)
Title: Differential coupling and compound power system for a vehicle
Inventor: YANG TAI-HER
IPC: B60L50/16
Filed: 1994-02-04
Granted: 2005-04-12
Abstract: The present invention is directed to a differential coupling and compounding power system for use in a hybrid driven vehicle. The system includes a primary power sour ce that includes an output shaft connected to a magnetic coupling and driving device. A magnetic coupling driving device can be driven by the output shaft of the engine so as to act as an alternator for charging a battery unit of the vehicle, can function as a motor to drive the vehicle while receiving power from the battery unit and can drive the vehicle in unison wi th the engine such that a compound power system is provided. The magnetic coupling and driving device can also function to develop a load on the engine in order to act as a vehic le brake.
Patent CA-2115064-C (CA)
Inventor: GAILEY ROBERT M
IPC: D02G3/46
Filed: 1992-08-05
Granted: 1999-02-16
Abstract: The invention relates to internally bonded sewing threads and to processes  for the production of the internally  bonding sewing threads.  The  internally  bonding sewing threads of the inventon include three multifilament yarns (10) wrapped helically about a thermoplastic  bonding core yarn (12).  Processes  of the invention  include an improved process for preparing a precursor plied thread (5) which is thereafter thermally treated to provide the internally bonded sewing thread (5').  In addition, the inven-tion provides batch and continuous processes for converting  the precursor  plied thread (5) into internally bonded sewing thread (5').