baber/WOPTO huggingface dataset:
Patent CA-2174617-A1 (CA)
Title: Use of centrifugal compressors in adsorptive systems
Inventor: WEHRMAN JOSEPH GERARD
IPC: B01D53/047
Filed: 1996-04-19
Abstract: Method and apparatus for using a centrifugal compressor during the exhaust portion of the cycle in a pressure vessel used to separate components from a gaseous mixture by pressure swing or vacuum swing adsorption.  Energy input to the motor of an electrically driven motor-compressor is minimized at a time when the exhaust portion of the cycle is initiated allowing rotation of the compressor wheel to decelerate by contact with the absorbed gaseous components until the speed of rotation of the compressor wheel matches the efficient compression ratio for the compressor and then reenergizing the motor to increase the speed of rotation of the compressor wheel according to the best efficiency curve for said compressor until a full outlet to inlet pressure ratio across said compressor is achieved.
Patent CA-2175192-A1 (CA)
Inventor: DE VOS RIK
IPC: C08K3/04
Filed: 1994-10-31
Abstract: Process for the preparation of a fine celled open celled rigid polyurethane or urethane-modified polyisocyanurate foam comprising the step of reacting an organic polyisocyanate with a polyfunctional isocyanate-reactive material, wherein the reaction is carried out in the presence of at least one infrared absorbing substance.
Patent CA-2175371-A1 (CA)
Inventor: ZIMMERMAN SCOTT MOORE
IPC: F21V8/00
Filed: 1994-10-18
Abstract: Système d'éclairage par l'arrière (2) comportant un réseau d'ouvertures (8) placé à proximité immédiate d'une source lumineuse (6) et un réseau d'éléments optiques coniques (10) dont la surface de pénétration de la lumière est inférieure à celle de sortie de la lumière. Les rayons lumineux traversent les ouvertures puis sont dirigés sur les éléments optiques, qui les transmettent par réflexion interne de façon à produire une source lumineuse partiellement collimatée. Les rayons lumineux traversent ensuite un réseau de microlentilles (12), qui les transmettent par réfraction de façon à produire une source de lumière sensiblement plus collimatée pour les éléments d'affichage de l'écran (16). Ledit système d'éclairage par l'arrière offre des avantages en matière d'affichages électro-optiques et en particulier pour ce qui est des applications militaires et avioniques.
Patent CA-2175748-A1 (CA)
Title: Joint d'etancheite pour element de construction
Inventor: SCHLAPPA ALFRED
IPC: E04B1/94
Filed: 1996-05-03
Abstract: L'invention a pour objet un joint (8, 9) d'étanchéité à base de polymère (9) flexible/compressible, notamment destiné à assurer l'étanchéité propre d'un élément de construction et/ou l'étanchéité entre deux éléments de construction adjacents, éléments du type panneaux (1) de paroi. Ledit joint (8, 9) est muni, au moins sur sa surface destinée à être mise au contact dudit élément, d'un revêtement (8) superficiel en un matériau non combustible et/ou gardant son intégrité à haute température.
Patent CA-2176110-A1 (CA)
Inventor: SUWANDHAPUTRA JOHANNES H
IPC: H04M1/654
Filed: 1994-10-19
Abstract: A telephone line monitoring circuit (100) for a MODEM monitors the TIP and RING lines (106, 108) of the telephone line. A first circuit (110) detects when a local phone goes off-hook while the MODEM is on-hook by sensing a decrease in a differential voltage between the TIP and RING lines (106, 08). A second circuit (120) detects the pick up of a local phone while the MODEM is off-hook by detecting a change in the impedance between the TIP and RING lines (106, 108). A third circuit (120) detects the hang up of a remote phone connected with the MODEM while the MODEM is off-hook by detecting a temporary break in the DC loop between the central office and MODEM. A snoop circuit (130) monitors the telephone line for DTMF signals while the MODEM is on-hook.
Patent CA-2177104-A1 (CA)
Title: Multi-size roof flashings
Inventor: RODRIGUEZ ROBERTO
IPC: E04D13/147
Filed: 1996-05-22
Abstract: A roof flashing for establishing a weather-proof seal with upstanding pipes of different diameters includes a frusto-conical shape collar having smaller diameter upper and larger diameter lower seals for sealingly engaging different diameter pipes and an internal annular groove immediately above the lower seal providing a frangible wall section in the collar to facilitate removal of the upper seal from the collar when the collar is to be used to seal against larger diameter pipes. Immediately below the internal groove on the exterior wall of the collar is an external annular bead which together with the lower seal resist stretching of the collar when engaged by a gripping tool immediately above the internal groove and pulled to provide a relatively clean tear in the region of the internal groove around the entire periphery of the collar to separate the upper seal from the collar. The lower seal includes an upper wall portion extending inwardly from the inner wall of the collar that acts as a stop for locating a leading edge of the gripping tool in substantial alignment with the internal groove.
Patent CA-2178934-A1 (CA)
Inventor: BROOKS DENNIS L
IPC: A61M25/00
Filed: 1995-10-03
Abstract: La présente invention concerne un procédé et un dispositif de maintien en position d'un organe de guidage, tel qu'un fil-guide, à l'intérieur du système vasculaire d'un patient (en l'occurrence dans un cathéter-guide placé à l'intérieur du système vasculaire du patient) pendant le retrait d'un cathéter intravasculaire monté en relation coulissante sur l'organe de guidage et la progression d'un cathéter de remplacement. L'une des réalisations actuellement préférées comporte une gaine-guide présentant sur toute sa longueur intérieure une lumière, la gaine-guide étant munie à l'intérieur d'un organe d'engagement disposé en relation coulissante. Un couple appliqué à l'organe d'engagement à fil-guide par son extrémité proximale dépassant de l'extrémité proximale du cathéter-guide fait que l'extrémité distale souple enveloppe le fil-guide avec suffisamment de fermeté pour maintenir en position le fil-guide pendant le retrait ou la progression d'un cathéter sur le fil-guide. La partie distale de l'organe d'engagement à fil-guide est réalisée de préférence en un alliage pseudo-élastique NiTi dont la phase austénite est stable à température du corps (37 ~C), l'induction d'une contrainte provoquant sur cet alliage une transformation de phase austénite en phase martensite.
Patent CA-2179785-A1 (CA)
Inventor: BUTLER DONALD S
IPC: H04N5/14
Filed: 1996-06-24
Abstract: A two dimensional video convolver generates visually acceptable images on a standard television receiver and includes first and second adder stages and two pixel time period delays. The first adder stage simultaneously receives binary data from three adjacent pixels in a predetermined line in a first direction of a picture to be reproduced on a display during each pixel scan period. The binary data of each of three pixels is processed with a predetermined weight to generate a binary first stage output signal representative of a weighted sum of the plurality of the three pixels in the predetermined line. The second adder stage is responsive to the binary first adder stage output signal during a time period for each of three predetermined adjacent lines in a second orthogonal direction of a picture to be reproduced on a display. The second adder stage processes the binary weighted sum of each of the three lines with a predetermined weight to generate a video convolver output signal representative of a weighted sum of the three pixels in a first direction over three adjacent lines in a second orthogonal direction. Weighting is accomplished in the first and second adder stages by using binary data bits for a pixel as received when the weight for that pixel is a numerical one, and by shifting the received binary data bits by a predetermined number of y bits in a first direction to provide a multiply function when a respective weight is greater than one and equals 2y.
Patent CA-2180394-A1 (CA)
Title: A rail loading wagon
Inventor: HERTELENDI JOSEF
IPC: E01B27/17
Filed: 1996-07-03
Abstract: A rail loading wagon (1) for loading and unloading long rails (17) consists of a wagon frame (4) supported on a track (2) by on-track undercarriages (3). Guide rollers (20) spaced apart from one another in the longitudinal direction of the wagon are provided for guiding the long rails (17) between a track plane (19) and a loading plane (18), positioned above the wagon frame (4), for storing the long rails (17). Crane rails (9), spaced apart from one another in the transverse direction of the wagon and extending in the longitudinal direction of the wagon, are fastened to the wagon frame (4). The wagon frame (4) has at least one recess (16) for the passage of the rails (17), the recess being located between the on-track undercarriages (3) and being furnished with the guide rollers (20).
Patent CA-2180764-A1 (CA)
Title: Rubber article having a surface design for high abrasion resistance
Inventor: REILLY PATRICK JOHN
IPC: B29C48/71
Filed: 1996-07-09
Abstract: The present invention relates to a rubber article having a surface construction designed for abrasion resistance wherein the surface comprises a series of rubber layers parallel to each other and in a density of from at least 200 layers per 25.4 millimeters as measured along the surface area of the article and in a direction perpendicular to each layer.
Patent CA-2185182-A1 (CA)
Inventor: ANDRUSKA DONALD LEE
IPC: H04Q3/00
Filed: 1996-09-10
Abstract: A telecommunication network includes a first telecommunication switch that supports subscribers coupled to the first switch and recognizes a request for call origination by a calling party on an associated communication line. The request for call origination services seeks services from a second switch. A first record in a database coupled to the second switch is located based on the identification of the calling party's line.  The second switch is disposed at a hierarchical level above the first switch.  A first set of predetermined features is determined based on information contained in the first record.  A personal identification number of the calling party is received at the second switch. A second record in a database is located based upon the PIN; the second record is independent from the first record.  A second set of predetermined features is determined based upon information contained in the second record.  The set of features made available to the calling party from the second switch is determined based on a consideration of the total set of call features in the first and second sets of features.
Patent CA-2185462-A1 (CA)
Inventor: STEFFENS CHUCK J
IPC: B60J7/14
Filed: 1996-09-12
Abstract: A cargo bay cover for pickup trucks and the like includes an angled member mounted on the rails of the cargo bay equipped with a flexible gasket to form a seal with the cover. The cover has a special, narrow panel adjacent the cab to make it possible to more completely expose the cargo area of the truck and provide improved seal means at each of the hinges to more effectively exclude moisture.
Patent CA-2185537-A1 (CA)
Title: Heat treated high lignin content cellulosic fibers
IPC: A61L15/28
Filed: 1995-03-10
Abstract: Heat-treated-in-air high lignin content cellulosic fibers which are free of moieties from crosslinking agents, for use in absorbent structures, are prepared by fluffing high lignin content fibers at a consistency of at least 40 %, and heating in air at atmospheric pressure at a temperature ranging from 120°C to 280°C fluffed fiber water admixture having a consistency of at least 60% of moisture-free fluffed fibers, to remove any moisture content and heat treat the resulting moisture-free high lignin content fibers for at least 5 seconds, or by heating a sheet of dry (0-40 % moisture content) high lignin content fibers utilizing these same heating conditions and then fluffing.
Patent CA-2187480-A1 (CA)
Title: Co-channel interference reduction
Inventor: TONG WEN
IPC: H04B1/12
Filed: 1996-10-09
Abstract: Co-channel interference of a frequency modulated signal represented by complex signal samples is reduced by amplitude limiting each sample and non-linearly filtering the limited samples. The non-linear filter low pass filters the limited samples, multiplies the filtered samples by their complex conjugates, and high pass filters the products to produce resultant signal samples. It also squares the filtered samples, low pass filters the squared samples, multiplies the filtered squared signals by the complex conjugates of the filtered samples, combines the result with said resultant signal samples and the filtered samples, and low pass filters the combined signal to produce samples having reduced co-channel interference. The limiter and non-linear filter can be constituted by a digital signal processor.
Patent CA-2189005-A1 (CA)
Title: Activin antagonists as novel contraceptives
Inventor: CROWLEY WILLIAM F
IPC: A61K38/00
Filed: 1995-04-28
Abstract: A method for contraception which features administering to a patient a con-traceptive agent having activin-antagonist activity.  The contraceptive agent results in inhibition of the activin-stimulated re-lease of FSH, thereby resulting in a de-crease in fertility and facilitating contra-ception in the patient.
Patent CA-2190036-A1 (CA)
Title: Cable suspension assembly
Inventor: ZAK AARON
IPC: H02G7/06
Filed: 1996-11-12
Abstract: To suspend electrical or communication cables along an aerial steel messenger wire, it is known to use cable suspension assemblies. With this invention, it may be possible to substantially increase the load holding capacity of the cable suspension assembly and carry out multiple consequent installations of cables or cable bundles on the same cable suspension assembly.
Patent CA-2192698-A1 (CA)
Title: Device for suspending an electrical conductor from a carrying cable
Inventor: THIARD JEAN-CLAUDE
IPC: B60M1/22
Filed: 1995-07-06
Abstract: A connecting dropper providing a mechanical articulated and electrical linkage between a carrying cable and a conductor, particularly a contact wire of an overhead electrical traction line, wherein the dropper wire provides a continuous electrical connection between the carrying cable and the contact wire. The dropper wire (14) is connected to respective connecting clips (18,18') providing the connection to the carrying cable (10) and the contact wire (12) via sleeves (20,20';32,32') in which the ends of the dropper wire are pinched, and said connecting clips (18,18') consist of two detaehable parts that are snapped together to grip the carrying cable (10) and the contact wire (12) respectively.
Patent CA-2193442-A1 (CA)
Inventor: MOLLIE JEAN-PAUL
IPC: H01F41/12
Filed: 1996-12-19
Abstract: The specification describes and claims the use of a foil coated on at least one surface side with a tacky silicone composition prior to wire winding around the foil in a coil.     The presence of a tacky layer of silicone composition on the foil exerts a retaining force on the wires discouraging said wires from sliding away from an original or intended position.
Patent CA-2194474-A1 (CA)
Inventor: KANAAN ROGER J
IPC: B23B31/22
Filed: 1996-03-28
Abstract: A quick release chuck device (10) includes a body member (12) having an internal bore (14) for receipt of a tool shank (16) and is matable to a drive spindle (46). Bearing members (C) are radially movable within circumferentially spaced passages (B) defined in body member (12) so that at least a portion of each bearing member (C) extends into the internal bore (14). An outer sleeve (20) disposed about the body member (12) and the bearing members (C) is rotatable relative to the body member (12) between a gripping position and a released position. The outer sleeve (20) has an inner diameter surface (22) with ramping engaging surfaces (D) spaced so as to engage the bearing members (C) and force them radially inward to grip the tool shank (16) when the outer sleeve (20) is rotated to its gripping position. The tool shank (16) is released by rotating the outer sleeve (20) to its released position, allowing the bearing members (C) to move radially outward.
Patent CA-2194568-A1 (CA)
Inventor: GILHOUSEN KLEIN S
IPC: H04B7/185
Filed: 1995-07-07
Abstract: Le système de radiocommunications de bord de cette invention permet à une radio de bord de communiquer avec le système de radiotéléphone cellulaire au sol, et cette invention permet au système au sol de suivre la position du radiotéléphone de bord et de le rechercher lorsqu'un appel est reçu en provenance du système téléphonique au sol. La station de base au sol est connectée à des antennes rayonnant vers le haut qui forment des cellules aéroportées. Lorsque l'aéronef équipé de sa radio traverse les cellules aéroportées, le relais aéroporté reçoit les signaux émis par la station de base et les retransmet à la radio. Si la radio envoie des signaux, le relais retransmet ces derniers à la station de base par les cellules aéroportées. A mesure que l'aéronef se déplace d'une cellule à une autre la radio est transférée à la cellule suivante pour maintenir les communications avec le sol.
Patent CA-2195174-A1 (CA)
Title: Method of improving scuff and cut resistance of ionomer covered game ball
Inventor: SULLIVAN MICHAEL J
IPC: C08F255/06
Filed: 1997-01-15
Abstract: Disclosed herein is a game ball and method for making the same.    The game ball has an ionomeric cover which includes a combination of ionomeric crosslinks and covalent crosslinks. The game ball cover is superior in at least one of cut resistance and scuff resistance to a conventional cover that does not have covalent crosslinks but is otherwise substantially identical in composition. The game ball cover of the invention is particularly useful for improving the durability of golf balls to be struck with sharp-grooved clubs.
Patent CA-2196648-A1 (CA)
Inventor: BOLINAS ANDRES A
IPC: E05D7/00
Filed: 1997-02-03
Abstract: A door positioning hinge supports two closure members, and also allows the closure members to be rotated to open or to close.  The door positioning hinge can be adapted to allow free-swinging of the closure members or alternatively to hold the closure members in various detent positions.  In addition, the particular amount of force can be selected where desired which operates to hold the closure members in the respective detent positions.  The operation of the door positioning hinge accommodates use with both vertically swinging or horizontally swinging closure members.
Patent CA-2199751-A1 (CA)
Title: Levier compact
Inventor: NOLET CLAUDE
IPC: B66F3/00
Filed: 1997-03-12
Abstract: Le précis n'est pas disponible en Not Yet Available ce moment
Patent CA-2207353-A1 (CA)
Title: Catalyst for dimethyl ether, method of producing catalyst and method of producing dimethyl ether
Inventor: FUJIMOTO KAORU
IPC: B01J37/04
Filed: 1997-06-09
Abstract: A catalyst suitable for producing dimethyl ether comprises alumina particles having an average size of 200 µm or less and a methanol synthesis catalyst layer formed around each of the alumina particles. The methanol synthesis catalyst has a weight ratio of 0.05 to 5 to a weight of the alumina particles. The catalyst is produced by forming a layer comprising a methanol synthesis catalyst around each of alumina particles. The dimethyl ether is produced by the method of forming a slurry by introducing the catalyst into a solvent and introducing a mixed gas comprising carbon monoxide and hydrogen into the slurry.
Patent CA-2208516-A1 (CA)
Inventor: DEHAAN CHRISTOPHER S
IPC: E01F9/529
Filed: 1997-08-22
Abstract: Varying grooves are put into the roadway perpendicular to the movement of traffic.  When the tires of a vehicle go over these grooves, there will be vibrations made in the body of the vehicle. These vibrations will cause sounds within the vehicle's interior. If the grooves are properly spaced, the sounds will be recognizable.
Patent CA-2208626-A1 (CA)
Title: Synchronization method and system for a digital receiver
Inventor: HUANG YUNG-LIANG
IPC: H04L27/26
Filed: 1997-06-23
Abstract: A synchronization system and method for obtaining frame, carrier, and sampling synchronization of an input OFDM modulated digital signal having a pseudoperiodic second symbol. The system includes an apparatus for obtaining frame synchronization, and the apparatus includes an envelope detector to detect the first symbol of the input signal, and a differentiator connected to the envelope detector to detect the second symbol. The differentiator includes a first filter having a transfer function H(z) = (1 + Z-1) and a second filter having a transfer function Hp(z) = (1 - Z-n/2 + Z-n - Z-3n/2), where n equals to a number of samples in the input signal. Synchronization of the carrier frequency offset is obtained by first obtaining the fractional carrier frequency offset, and then obtaining the integral carrier frequency offset through a matched filtering process. Sampling frequency synchronization is obtained through the matched filtering process for determining integral carrier frequency offset.
Patent CA-2209096-A1 (CA)
Inventor: BRADNOCK BRIAN ROBERT DENIS PE
IPC: A61N7/00
Filed: 1995-12-27
Abstract: The apparatus for removal of bone-cement comprises means to generate an ultrasonic signal and a tool element including an elongate stem (1) to transmit the signal to a distal end. A plurality of spoke members (3), preferably four or eight, extend radially from adjacent the distal end to connect with an annular member (2) surrounding and spaced from the distal end.  A plurality of openings (4) are each defined by the stem (1), the annular member (2) and two of the spokes (3). The annular member (2) is provided with a distally facing cutting edge. The spokes (3) are so configured as to transmit to and allow axial movement of the annular member (2) with respect to the stem (1), with an enhanced displacement relative to that of the stem (1).
Patent CA-2209421-A1 (CA)
Inventor: SAINT-RAMON JEAN-GERARD
IPC: A61D19/02
Filed: 1997-06-27
Abstract: The sachet (1) for packaging biological liquids is made of two sheets of thermoplastic material which are welded by a welding cord (2) delimiting a pocket (3). The upper part of the pocket is extended by a filling conduit (4) which has a widened cone (5). Holes (6) are made near the two longitudinal edges which serve to place the sachet on a packaging machine. Welding zones (7,8) hold the two sheets against each other and avoid their separation in the packaging machine. One of the two sheets has, in its upper part, a wax peeling zone (9). After filling, the sachet is sealed in a sealing zone (10) inside the peel off zone near to the upper part of the conduit.
Patent CA-2212958-A1 (CA)
Title: Method for preparing aromatic compounds
Inventor: RAYLE HEATHER LYNNETTE
IPC: C07C67/317
Filed: 1997-08-13
Abstract: A method for synthesizing aromatic compounds by selectively dehalogenating aromatic starting materials is provided. Compounds may be prepared which are substituted with fluoro, chloro or bromo.  The method may be used to remove halogen atoms from sites at which halogenation is not desired, and to form substantially pure halogenated compounds from mixtures of starting materials. The method uses a copper containing dehalogenation agent and an acid with the dehalogenation being controlled by a substituent such as a carboxylic acid, amide, ester, aldehyde, ketone or cyano on the aromatic ring.
Patent CA-2216253-A1 (CA)
Title: Collapsible massage table
Inventor: LLOYD JOHN T
IPC: A47B3/087
Filed: 1997-09-23
Abstract: A collapsible massage table has two sides, each side being supported by a support structure including two legs. Various cable lines are used to stabilize the legs when the table is open and upright. The cables also function to automate or semi-automate leg, brace and truss extension and/or folding during opening and collapsing processes.