baber/WOPTO huggingface dataset:
Patent CA-2092980-C (CA)
Title: Decanter centrifuge for thickening at high rates
Inventor: SHAPIRO LEONARD
IPC: B04B1/20
Filed: 1993-04-07
Granted: 2004-04-06
Abstract: A decanter centrifuge is provided with a rotatable bowl and a coaxially-mounted conveyor which is adapted for rotation at a differential speed with respect to the bowl. The conveyor includes a central hub extending for at least one portion of the longitudinal length of the conveyor. A series of radially-extending ribs which transverse an open feed zone. Longitudinal ribs are also attached to the hub section. The longitudinal ribs and transversing ribs supporting a ribbon conveyor flight.      The open feed zone serves to decrease turbulence during the introduction of the feed into the bowl.       The radially-extending ribs both outside the feed zone and the remaining portions of the centrifuge bowl serve to reduce turbulence within the bowl and to control acceleration of the feed material during separation. The overall structure of the centrifuge serves to decrease the likelihood of washout is rotodynamically stiffer and thus less prone to vibration, is lighter and less expensive in construction and creates a stable operation.
Patent CA-2092989-C (CA)
Inventor: BUSH THOMAS A
IPC: G06Q20/14
Filed: 1991-10-01
Granted: 2000-02-08
Abstract: On utilise un système de traitement de transaction en combinaison avec une source d'émission (10). Le système permet une autorisation en temps effectif de paiements d'une pluralité de produits et de services mis à disposition par la source d'émission (10). Un menu vidéo (12) est transmis à un récepteur (26), représentant une liste des produits et des services disponibles. Le récepteur contient un lecteur de carte de crédit ou de débit (72) et transmet des informations sur l'état du compte bancaire ainsi que la sélection du menu (12) à une unité de traitement de paiement (30), par l'intermédiaire d'un modem. L'unité de traitement de paiement (30) vérifie la sélection de programmation et les informations sur le compte bancaire puis transmet un signal d'autorisation au vendeur ou au donneur de services (60). L'unité de traitement de paiement (30) peut vérifier les informations sur le compte bancaire et transmettre l'autorisation de paiement à un organisme financier (40). Le vendeur (60) envoie, à son tour, le produit sélectionné au consommateur à réception du paiement de l'organisme financier.
Patent CA-2099869-C (CA)
Inventor: FILLER AARON GERSHON
IPC: A61K47/48
Filed: 1992-01-04
Granted: 2005-03-29
Abstract: There is provided a means of cellular level therapy or prophylaxis whereby endocytosable particles are administered so as to emit cytotoxic radiation onto release metal cations haying a therapeutic or prophylactic effect, eg. a viral replication suppressing effect, within cells such as macrophages following their uptake by these cells.
Patent CA-2101873-C (CA)
Inventor: BOVONE LUIGI
IPC: B24B41/06
Filed: 1993-08-04
Granted: 1997-01-07
Abstract: A device for fixing and maintaining a shapeable glass plate (1) in position during its machining, said plate (1) being placed on a support surface (2) and preferably maintained spaced therefrom to allow a usual operating tool to move and act thereon, for example during a chamfering process, said device comprising a plurality of suckers (11) associated with at least two mutually independent support elements (3, 3A, 3B) interposed between the plate and the support surface, said suckers (11) being associated with opposing faces (9, 10) of each element (3, 3A, 3B) so as to cooperate with the plate (1) and surface (2) respectively, said elements being constrained directly to each other but movable relative to each other and comprising air passage conduits (15, 16, 20, 55, 56) which, by drawing said air from one element to another by suction applied to an opening (17, 18) at which at least one of said conduits opens to the outside of one of said elements, removes air from all the suckers (11) to constrain them to the plate (1) and support surface (2), so fixing these latter together.
Patent CA-2107451-C (CA)
Title: Electron lithography using photocathode
Inventor: BRANDES GEORGE RAYMOND
IPC: H01L21/027
Filed: 1993-09-30
Granted: 1998-08-18
Abstract: Sub-micron pattern delineation, importantly in the fabrication of large scale integrated devices, is based on a patterned photocathode. Functionally, the photocathode plays the role of the mask in competing systems, either in proximity printing or in projection. In operation, the photocathode is illuminated by ultraviolet radiation to release electrons which are brought to focus on a resist-coated wafer with assistance of a uniform magnetic field together with an accelerating applied voltage.
Patent CA-2107569-C (CA)
Title: Parathyroid hormone receptor and dna encoding same
Inventor: SEGRE GINO V
IPC: C07K7/08
Filed: 1992-04-06
Granted: 2011-08-02
Abstract: DNA encoding a parathyroid hormone receptor; production and isolation of recombinant and synthetic parathyroid hormone receptor polypeptides and fragments; antibodies to parathyroid hormone receptors and receptor fragments; methods for screening candidate compounds for antagonistic or agonistic effects on parathyroid hormone receptor action ; and diagnostic and therapeutic methods of these compounds are disclosed.
Patent CA-2109248-C (CA)
Inventor: MUSSO CHARLES S JR
IPC: B60P1/36
Filed: 1993-10-26
Granted: 1999-03-16
Abstract: A dump truck having an endless conveyor structurally integrated into the bottom of the dump body, a conveyor hood opening in the tailgate of the dump body in longitudinal alignment with the conveyor and a conveyor hood mounted within the conveyor hood opening for being shifted between a forward extended position thereof covering the rear end of the conveyor and a rearward retracted position thereof generally flush with the inner face of the tailgate to facilitate use of the truck for open truck hauling with the tailgate in a flat open position extending rearwardly from the bottom of the dump body.
Patent CA-2109807-C (CA)
Title: Methode de positionnement et de mise en liasse pour la fabrication de joints a brosse toroidaux
Inventor: HOWE HAROLD
IPC: A46B3/06
Filed: 1991-09-30
Granted: 1999-12-21
Abstract: Dans cette invention, on place un long ruban constitué d'une multitude de fils fins sur un anneau de support de manière à obtenir l'angle des poils nécessaire. A l'aide d'un chalumeau on soude le ruban sur la plaque de support et le ruban se sépare simultanément, formant ainsi un premier faisceau de fils. Le ruban séparé est repositionné par rapport à l'anneau de support, adjacent au premier faisceau, puis le ruban est à nouveau soudé en place et coupé. On recommence le processus de mise en place, de soudure et de découpe jusqu'à ce que la plaque de support (ou le ruban) ait été repositionnée sur la longueur voulue de la plaque pour produire le réseau de poils nécessaire pour le joint d'étanchéité à balai.
Patent CA-2110434-C (CA)
Inventor: GAGNON PAUL R
IPC: B60B33/00
Filed: 1993-12-01
Granted: 2004-05-04
Abstract: A caster has two spaced apart wheels with an elastomeric torsional shock and vibration isolating suspension between them. The wheel axis is spaced longitudinally from a bearing axis to subject elastomeric disks positioned between the wheels to torsional shear stresses to help absorb shocks and vibrations. A snubber is provided for limiting the angular motion of the wheels about a bearing axis.
Patent CA-2110440-C (CA)
Title: Polypropylene molding composition for producing calendered films
Inventor: PIESOLD JAN-PETER
IPC: C08L23/10
Filed: 1993-12-01
Granted: 2005-02-15
Abstract: A polypropylene molding composition which comprises 99.5 to 99.999% by weight of a homopolymer or copolymer of propylene with a MFI 230/2.16 of 2.0 to 25 g/10 min and 0.001 to 0.5% by weight of a fluorine-containing thermoplastic polymer with a fluorine content of at least 50% and a melting point of below 250°C makes it possible to produce, by calendering, polypropylene films of high quality. The addition of fluoropolymers is not only effective as regards the release effect, but also results in significantly fewer deposits and brings about an improved take-off behavior in comparison to the use of conventional lubricants.
Patent CA-2110669-C (CA)
Inventor: ROSE KEVIN TIMOTHY
IPC: H04Q3/62
Filed: 1993-12-03
Granted: 2000-05-23
Abstract: In a telephone system serving premises having a plurality of terminals offering subscriber selectable features, an arrangement is described for changing the active features of the terminals according to whether the associated subscribers are on or off the premises. The arrangement comprises a device for generating signals identifying the subscribers and indicating an "in" or "out" status therefor, a memory for storing data indicating the features required by the respective subscribers in their "in" and "out" status, and a device responsive to the signals and the data stored in the memory to select the appropriate features in the telephone system as the subscribers enter and leave the premises.
Patent CA-2115730-C (CA)
Title: Data transmission method and system therefor
Inventor: HASHIMOTO HIROSHI
IPC: B60R16/02
Filed: 1994-02-15
Granted: 1999-05-04
Abstract: A data transmission system for a vehicle includes a plurality of control systems installed on the vehicle, and a network bus connecting the plurality of control systems with each other for circulating a transmission right through the plurality of control systems to thereby perform transmission of a message between the plurality of control systems.  According to a first aspect, each of the control systems starts transmitting data when it is detected that the transmission right is not generated or lost from the system, and continues transmitting the data when no collision of data transmitted from the present control system with data transmitted from the rest of the plurality of control systems, or when by mediation for avoiding the collision is detected, it is determined to continue data transmission.  According to a second aspect, the maximum number of times of retransmission to be permitted is determined according to a type of failure in transmission identified, and the retransmission is performed so long as the number times of retransmission of the data does not exceed the maximum number of times of retransmission to be permitted.  According to a fourth aspect, the message comprises a first response field for receiving a first acknowledging response output from a control system having received the transmission right, and a second response field for receiving a second acknowledging response output from a control system having received data.
Patent CA-2117950-C (CA)
Title: Process for cis-1,4-polybutadiene production with reducel gel formation
Inventor: KNAUF THOMAS FRANZ
IPC: C08F2/06
Filed: 1994-10-12
Granted: 2004-12-21
Abstract: A process for producing high cis-1,4-polybutadienes wherein there is reduced gel formation is provided which process comprises: polymerizing 1,3-butadiene in a polymerization medium comprising an inert hydrocarbon solvent and water at a temperature of from about -30°C to about 60°C in the presence of a catalyst system which is a mixture of (1) a substantially anhydrous divalent cobalt salt, (2) diethyl aluminum chloride or ethyl aluminum sesquichloride and (3) an organo aluminum compound of the formula R3Al wherein R is an alkyl group having from 8 to 12 carbon atoms and, optionally triethylaluminum, the molar ratio of chloride in (2) to the total aluminum content in (2) plus (3) being specified and the ratio of the mols of the divalent cobalt salt to the total moll of (2) plus (3) being from about 1:15 to about 1:30, the water being employed at a level of from about 0.1 to about 0.8 millimol for every millimol of (2) used, to the desired conversion.
Patent CA-2122108-C (CA)
Title: Multiple adaptive filter active noise canceller
Inventor: LO ALLEN K
IPC: H03H17/02
Filed: 1994-04-25
Granted: 1998-01-06
Abstract: An active adaptive noise canceller (100) that does not require a training mode and operates over an extended noise bandwidth.   The canceller partitions the noise bandwidth into frequency sub-bands,  and multiple adaptive filter channels (120, 140) are employed, one for each sub-band, to cancel noise energy in the respective sub-bands.   Each channel includes bandpass filters (121, 130) to restrict the channel to operation over only the particular sub-band, and delays are inserted in the operation of the filter weight updating.  Because each channel is stable over its sub-band, the canceller operates over the extended noise bandwidth of all the sub-bands.
Patent CA-2122741-C (CA)
Inventor: OKADA TOMOYUKI
IPC: H04L1/20
Filed: 1994-05-03
Granted: 1999-03-30
Abstract: An error detector circuit and associated method for a digital receiver. The digital receiver is operative in a TDMA communication scheme in which DQPSK-modulated signals are generated, such as the Japanese Digital Cordless Telephone System. The error detector circuit detects times in which an excessive amount of noise or other distortion is introduced upon one or more sequences of a signal transmitted during one or more time slots in the TDMA communications scheme. A receiver incorporating the error detector circuit is operative not to decode portions of a received signal when excessive numbers of sequences include excessive amounts of noise or other distortion introduced thereupon. Thereby, permitting degradation of the audio quality of a signal actually recreated by the receiver incorporating the error detector, to be minimized.
Patent CA-2132414-C (CA)
Inventor: FALCO SAVERIO CARL
IPC: C12N15/52
Filed: 1993-03-18
Granted: 2009-01-27
Abstract: A unique nucleic acid subfragment encoding lysine-insensitive aspartokinase (AK) is capable of causing a higher than normal production of threonine, when linked to a nucleic acid subfragment encoding lysine-insensitive dihydrodipicolinic acid synthase (DHDPS) higher than normal production of lysine. A further embodiment also includes a subfragment encoding antisense lysine ketoglutarate reductase. Nucleic acid sequences and chimeric genes are provided, as well as methods for increasing the lysine or threonine content of seeds of plants.
Patent CA-2133039-C (CA)
Title: Trocar piercing members
Inventor: YOUNG WAYNE P
IPC: A61B17/34
Filed: 1994-09-27
Granted: 2005-11-22
Abstract: A piercing tip for penetrating body tissue is provided which includes a conical body and a triangular cutting blade positioned within a slot formed in the conical body. The cutting blade includes a proximal mounting flange which extends outwardly from the conical body and is configured for mounting at the distal end of an obturator of a trocar assembly.
Patent CA-2137623-C (CA)
Title: Phenyl-substituted 1,4-dihydropyridines
Inventor: MEIER HEINRICH
IPC: A61K31/44
Filed: 1994-12-08
Granted: 2005-07-26
Abstract: The invention provides compositions, uses and commercial packages for the treatment of a dementia or depression. The compounds of the invention have the general formula: (see formula I) wherein:      R1 and R3 are identical or different and represent: (i) straight-chain or branched alkyl having up to 8 carbon atoms, which is optionally substituted by straight-chain or branched alkoxy having up to 6 carbon atoms or hydroxyl, or (ii) cycloalkyl having 3 to 7 carbon atoms; and R2 represents the radical: (see formula II) wherein:      R4 and R5 are identical or different and represent a halogen atom, cyano, ethinyl, trifluoromethoxy, methyl, methylthio, trifluoromethyl, straight-chain or branched alkoxy having up to 4 carbon atoms or a hydrogen atom, with the proviso that R4 and R5 are not a hydrogen atom simultaneously; or a physiologically acceptable salt thereof.
Patent CA-2138439-C (CA)
Inventor: PHILLIPS RICHARD A
IPC: G01B5/255
Filed: 1994-12-19
Granted: 1996-09-03
Abstract: A first plate is removably secured to the leaf spring of an automobile. The first plate defines an aperture that receives a centering pin on the leaf spring. The first plate also includes a pair of rails that are connected to and extend from a top surface of the first plate, thereby defining a recessed region. A second plate is removably secured to a differential housing bracket of the automobile and is sized to be received in the recessed region of the first plate. The second plate includes a pin that extends from a top surface of the plate and is received in an aperture of at least one of an automobile's differential housing brackets. To correct a misalignment, the leaf spring is separated from the differential housing of the automobile. The first plate is removably secured to the leaf spring of the automobile, and the second plate is removably secured to the differential housing bracket of the automobile. The first plate is then positioned on top of and in contact with the second plate by lowering the weight of the automobile onto the suspension system. The misalignment is corrected by adjusting the position of the first plate relative to the position of the second plate along a longitudinal axis of the automobile while the plates support the weight of the automobile. The plates are then secured to each other.
Patent CA-2144692-C (CA)
Inventor: ARBEUS ULF
IPC: F04D29/08
Filed: 1995-03-15
Granted: 2000-03-07
Abstract: The inlet part of the pump housing includes a collar which concentrically surrounds a corresponding opposite collar formed part of the pump impeller inlet, thus linking any possible leakage flow in parallel with the main flow into the impeller and minimizing the disturbance in the main flow. In order to minimize the leakage flow, an O-ring is arranged in front of the opening to a slot between the parts.
Patent CA-2149262-C (CA)
Inventor: MELENYZER GEORGE J
IPC: E21B23/04
Filed: 1995-05-12
Granted: 2005-01-04
Abstract: A liner hanger assembly structurally interconnects a casing within a bore hole and a tubular liner suspended from the casing. The hanger body includes a plurality of circumferentially spaced piston bores. A plurality of slips are provided circumferentially about the hanger body for gripping engagement with an internal surface of the casing. A plurality of pistons are each housed within a respective piston bore and are movably responsive to internal pressure within the hanger body. A sleeve is axially movable with respect to the hanger body in response to axial movement of the plurality of pistons. The sleeve is interconnected with each of the plurality of slips to cause radially outward movement of the slips in response to movement of the pistons. The liner hanger assembly has a high fluid pressure rating for ensuring reliable gripping engagement with the casing, yet creates a comparatively low fluid restriction in the annulus between the casing and the liner.
Patent CA-2151103-C (CA)
Inventor: HARWOOD JON W
IPC: F01N13/18
Filed: 1995-06-06
Granted: 1999-05-04
Abstract: A muffler is provided for attenuating noise associated with flowing exhaust gas and for evacuating condensate from gravitational low points of the  muffler.          The muffler includes top and bottom plates that are formed to define a plurality of flow tubes therebetween.  A bottom internal shell is secured to the bottom plate.  The bottom plate and the bottom internal shell are formed respectively to define a siphon tube therebetween.  The siphon tube includes a siphon inlet at a location that will coincide with a low point on the muffler and a siphon outlet in a selected flow tube.  The muffler further includes a bottom external shell secured to the bottom internal plate and surrounding the bottom internal shell.  Condensate accumulating of the gravitational low point of the bottom external shell will be drawn through the siphon tube and evacuated from the muffler.
Patent CA-2163309-C (CA)
Title: Methods of lining the internal surface of a pipe
Inventor: TOYODA SHIGERU
IPC: F16L55/164
Filed: 1995-11-20
Granted: 1999-01-19
Abstract: There are provided methods of lining the internal surface of a pipe, which includes first inserting two lining pigs into the pipe and then introducing a batch of resin thereinto, or inserting one lining pig between two batches of a resin,  or first inserting a lining pig and then inserting two batches of a  resin  with  another  lining  pig  therebetween,  or  first introducing a lining pig  made of a soft material capable of deforming so as to pass through a narrow-passing section and then introducing a batch of a resin into the pipe, causing the resin to move forward until the front end of the resin reaches an inner end of the pipe, and sucking the resin back from the inner end  so as to line the internal surface of the pipe with the resin.    There are also provided improved liquid blocking pigs  for  use  in pipe  lining  treatment,  each  of such pigs comprises a spherical body made of a soft resilient material and a least one flexible liquid barrier diaphragm interposed in the spherical body.
Patent CA-2166818-C (CA)
Inventor: DELLA-CIOPPA GUY
IPC: C12N9/02
Filed: 1991-06-28
Granted: 1999-09-28
Abstract: The present invention is directed to a method of making an active tyrosinase which comprises the steps of transforming E. coli cells or a unicellular organism with a DNA fragment containing a coding sequence for tyrosinase and a DNA fragment containing a coding sequence for an activator protein and growing the transformed E. coli cells or unicellular organism in a suitable medium.
Patent CA-2167872-C (CA)
Inventor: NAKATANI MASARU
IPC: C09K3/00
Filed: 1996-01-23
Granted: 2007-04-03
Abstract: An adsorbent for removing at least one interleukin selected from the group consisting of interleukin-1, interleukin-2, interleukin-6 and interleukin-8 and/or TNF, which comprises a porous water-insoluble carrier and a compound satisfying the value of log P of at least 2.50, in which P is a distribution coefficient in an octanol-water system and being immobilized onto the carrier, a process for removing the above IL(s) and/or TNF by the adsorbent and an adsorber comprising the adsorbent. According to the present invention, IL(s) and TNF in body fluid can be efficiently adsorbed using the above-mentioned adsorbent.
Patent CA-2168382-C (CA)
Inventor: LEGOUX RICHARD
IPC: C12N1/21
Filed: 1996-01-30
Granted: 2003-09-30
Abstract: The invention relates to the use of arginine as an agent  for the extraction of recombinant periplasmic proteins. The invention further relates to a method for the extraction of a periplasmic protein of interest, which consists in:   (1) suspending the pellet of cells or cell debris from  cells  originating  from  the  culture  of  a prokaryotic microorganism,  transformed by means of an expression vector containing a gene coding for the said protein and means for its expression in the periplasm of the said microorganism,  in a buffer solution containing arginine; and (ii)  recovering  the  protein  of  interest  in  the supernatant  of  the  bacterial  suspension  thereby obtained.
Patent CA-2169574-C (CA)
Title: Single arm holder and bracket for bicycle rack
Inventor: BLOEMER JOHN M
IPC: B60R9/048
Filed: 1996-02-15
Granted: 2000-07-25
Abstract: An L-shaped support has a rearwardly extending tubular arm formed of a thin-walled tube. The end of vertical leg of the support is cold formed into a U-shaped, double-walled channel which fits between the sides of a brace which isrigidly mounted to the trailer hitch of a vehicle. A plastic bracket has a splitring clamp which fits over the rearwardly extending arm of the support. The entire bracket may pivot about the axis defined by the arm. An alternative embodiment attachment device for restraining a bicycle tube on a horizontally extending carrier arm is formed as a single molded part of thermoplastic rubber.The attachment device has a strap with an array of two rows of holes which engage with a square array of four mushroom-head type fasteners to attach the end of the strap to the attachment devices.