baber/WOPTO huggingface dataset:
Patent CA-2152692-A1 (CA)
Title: Gas Quick Water Heater
Inventor: FENN GORDON W
IPC: F24H1/16
Filed: 1995-06-27
Abstract: A gas quick water heater is disclosed which includes   a heat exchanger having an annular lower manifold with a cold-water intake, an annular upper manifold with a hot-water exit, a plurality of coil-shaped heat exchanging tubes connected between the manifolds, and a baffle plate installed in the center of the heat exchanging tubes and for delaying the flow of heated air; an inner liner for closely embracing the inner surface of the heat exchanging tubes of the heat exchanger; an outer liner designed higher than the inner liner in height and for closely embracing the outer surface of the heat exchanging tubes; a lower plate for closing a lower portion between the inner and outer liners and having an air intake at the center ; a swirl plate having a plurality of air intakes at the periphery and a gas hole at the center portion; a combustion barrel having a plurality of air intakes on the overall surface; an insulation member in which the top surface is closed and the lower surface is opened to form an annular air intake; and an exhaust fan for discharging burned gas through the opening of the outer liner and the exhaust port of the barrier.
Patent CA-2155432-A1 (CA)
Title: Circuit for removing random fm noise
Inventor: DAIKOKU KAZUHIRO
IPC: H03G3/20
Filed: 1994-02-04
Abstract: In a circuit which limits to a fixed value the amplitude of a pilot signal received along with a modulated signal, mixes said amplitude-limited pilot signal with the modulated signal, and uses the random FM noise contained in the pilot signal to cancel the random FM noise contained in said modulated signal: the desired signal to be received is selected from the input signal at the high frequency band; this output is converted to a low frequency band signal by means of a frequency converter; and the extraction of the pilot signal and the cancellation of the random FM noise is performed in the low frequency band, whereby the characteristics required for the high frequency band-pass filter are relaxed.
Patent CA-2163921-A1 (CA)
Inventor: RIVOALLAN LOIC
IPC: C03B37/15
Filed: 1995-11-28
Abstract: L'invention a pour objet un procédé d'étirage contrôlé d'une ou plusieurs fibres optiques selon un profil désiré, et son dispositif de mise en oeuvre. Le procédé comporte plusieurs étapes selon lesquelles on impose une vitesse v e=dx e/dt de défilement de la fibre entrant dans le four, on choisit une loi f de variation du diamètre D S de la fibre en sortie de four telle que D S=f(x s) dans laquelle x s représente les positions, variables dans le temps, de la fibre en sortie de four, on opère des étirements successifs sur la fibre pour modifier à chaque fois le diamètre D S de la fibre en sortie de four, de façon à suivre le profil défini par la loi f de variation. Application aux dispositifs à fibre optique.
Patent CA-2165564-A1 (CA)
Inventor: TATHAM MARTIN CHRISTOPHER
IPC: H04B10/2531
Filed: 1994-03-23
Abstract: A method of compensating for dispersion in an optical communications system, the method comprising the steps of: positioning a semiconductor amplifier between a first and a second length of optical fibre, launching optical signals into the first length of optical fibre, directing optical signals emerging from the first length of optical fibre into the semiconductor optical amplifier, supplying optical pump radiation to the semiconductor optical amplifier so that the optical signals and the pump radiation interact within the semiconductor opdcal amplifier and generate the phase conjugate of the optical signals, snd launching the phase conjugate optical signals into the second length of optical fibre.
Patent CA-2165888-A1 (CA)
Inventor: HERRMANN WOLFGANG A
IPC: C07C205/56
Filed: 1995-12-21
Abstract: Prodn. of mono-, di- or poly-functional aromatic olefins is effected by reacting haloaromatic cpds. with olefins at 20-220 degrees C in the presence of a Pd complex catalyst of formula: (LaPdbXc)<n>An (I) X = a charged or uncharged mono- or poly-dentate ligand co-ordinated to Pd; L = a carbene ligand of formulae (II)-(V) co-ordinated to Pd: R1-R6 = opt. sulphonated 1-7C alkyl, 5-18C alicyclic, 2-5C alkenyl, 6-14C aryl or 7-19C aralkyl gps.; or R3-R6 may also be H; or R3+R4 and R5+R6 = opt. sulphonated 3-7C divalent gps.; or R1, R2, R4 or R6 may form a ring with X; Y = a satd. or unsatd. 1-4C alkylidene gp. or a dialkylsilylene or tetraalkyldisilylene gp.; A = an anion; b = 1-3; a = 1 to 4b; c = 0 to 4b; n = 0-6.
Patent CA-2170210-A1 (CA)
Title: Assignment of a carrier frequency in an sdma radio system
Inventor: TANGEMANN MICHAEL
IPC: H04Q7/36
Filed: 1996-02-23
Abstract: To assign a carrier frequency to different mobile stations in a conventional Space Division Multiple Access (SDMA) radio system, the stations are differentiated according to the direction in space from which they transmit radio signals to a base station.  In addition, the distances between the base station and the mobile stations are compared.  To prevent interference at the receiving site (base station BTS), according to the invention a carrier frequency (f) is assigned to the different mobile stations (MS1 to MS3) only if the directions in space (.THETA.1 to .THETA.3) are sufficiently different and the receive levels (P1 to P3) of the radio signals are sufficiently equal.  To that end, each mobile station (MS1 to MS3) is assigned a guard area, which encompasses at least a preselected solid angle (lobe width w) and at most a preselected level space (dynamic range S).  Any further mobile station wanting a radio link with the base station on the same carrier frequency (f) must be located in a permissible zone (Z) between the guard areas, which comprises a level range (zP) that is common to all preceding mobile stations.  A further guard area is defined with each further connection, and the permissible zone (Z) is determined anew.  The full capacity of the carrier frequency (f) is only attained when the permissible zone (Z) becomes so small that it no longer comprises sufficient space for the solid angle (w).
Patent CA-2172058-A1 (CA)
Title: Method and apparatus for supporting at least two communication services in a communication system
Inventor: ERICKSON PAUL M
IPC: H04W84/08
Filed: 1994-08-18
Abstract: Apparatus and method for enabling a single com-munication system (100) to support  at least two com-munication services.  For example, one can support both cellular telephone services and trunked dispatch ser-vices by sharing some, but not all, of the system infra-structure.  Access control gateways (201) and base sta-tions (203) comprise common infrastructure elements, while two separate processors provide control for each service, these being a  communication  agent  proces-sor (104) to support telephone services, and a  dispatch call  processor (106) to support dispatch call services. These two independent processors each  include a  data base (303 and 307) that includes information concern-ing  communication  units (204-206) operating within the system. During a call set-up sequence,  the  access con-trol gateway (201) receives a call request from a  com-munication  unit via a base  station, and passes  the re-quest to the  appropriate  processor, which uses its cor-responding database to support the requested service.
Patent CA-2174014-A1 (CA)
Title: Universal drive shaft coupling
Inventor: HOUMAND MITCHELL J
IPC: E21B4/00
Filed: 1996-04-12
Abstract: A universal coupling for coupling a positive displacement motor to an earth drilling assembly which includes a shaft having crowned polygons on each end and a universal housing having an internal flat-walled polygonal cavity so that the crowned polygon cooperates with the polygonal cavity to accomodate omnidirectional movement between the eccentric movement of the rotor and the drilling assembly for performance drilling and the combination of rotor eccentricity and off axis dislocation of the drilling assembly for use in horizontal or directional drilling applications. An adapter housing is provided which will accomodate the universal coupling movement for both types of drilling, connect the motor housing to the drilling assembly and provide the housing for the universal coupling's shaft.
Patent CA-2174774-A1 (CA)
Title: System for the detection and/or transmission of signals representing vital functions
Inventor: MAYER WILFRIED
IPC: G08C17/00
Filed: 1994-10-20
Abstract: Proposed is a system for the detection and/or transmission of signals representing the vital functions, such as ECG signals and pulse rate, of patients, sports-men/women, etc. The system consists of a sensor, a sensor-signal transmitter which transmits the signals fed to it by the sensor, and a receiver unit, the transmit-ter power of a sensor attached to the patient or sportsman/woman being set at a level such that the signal will be transmitted, with-out any interference, by teleme-try to the sensor unit (22) at least within buildings, sports cen-tres, stadiums and similar facili-ties. In addition, when a multi-plicity of transmitters which are not shielded from each other are operating simultaneously within the reception range of the receiver unit (22), the transmitter frequencies lie in a non-overlapping frequency-allocation scheme.
Patent CA-2180865-A1 (CA)
Inventor: FOUNDS MARTIN JOHN
IPC: A01K97/00
Filed: 1996-07-09
Abstract: An angling device (1) attachable to a float (14) comprising two spiral or helical line guides (6A, 6B) each defining an open ended, spiral or helical guide path, in a selected one of which line guides (6A, 6B) a portion (16B) of a fishing line (16) is, in use, adapted to be located, with the relationship between the line (16) and the selected line guide (6A or 6B) being such that, in a slack line mode, the line is able to slide through the guide (6A or 6B) with little or no frictional resistance, while, in a tensioned line mode, free passage is restricted by frictional engagement of the line (16) with the line guide (6A or 6B). The invention also includes a float (14) in combination with an angling device (1).
Patent CA-2180882-A1 (CA)
Inventor: ZEN VIC DE
IPC: B29C48/151
Filed: 1996-07-10
Abstract: A substructure for a composite product comprising a compression molding of particulate materials encapsulated and bound together by a thermoplastic binder into a compacted mass of a shape selected for its own use and composite products formed from such substructures. The particulate material comprises waste or recycled material and is chosen to control the physical properties of the substrate and products formed therefrom, and the thermoplastic binder comprises recycled thermoplastic material.
Patent CA-2181497-A1 (CA)
Inventor: ELLYIN FERNAND
IPC: B32B37/12
Filed: 1996-07-18
Abstract: A process for patching a crack or other defect in a thick-walled steel component, such as the wall of a pressure vessel, is provided. Stacked sheets of pre-impregnated carbon fiber-reinforced epoxy are bonded together and cured by interposed layers of a second resin. A structural adhesive is used to bond the stack to the steel to form the patch.
Patent CA-2181870-A1 (CA)
Inventor: VOSA RENATO
IPC: C08K5/18
Filed: 1996-07-23
Abstract: Aromatic polyester resins having improved color characteristics obtained incorporating in the resins in the preparation phase of the resin by polycondensation of a diol with an aromatic bicarboxylic acid a violet toner formed of 9,10 anthraquinone - 2 hydroxy - 4-p-toluidine or having an absorption spectrum comparable to that of the above anthraquinone compound.
Patent CA-2183315-A1 (CA)
Inventor: FLYNN GARY A
IPC: C07K5/078
Filed: 1995-01-09
Abstract: The present invention relates to certain novel mercaptoacetylamido 1,3,4,5-tetrahydro-benzo[c]azepin-3-one disulfide derivatives (formula I) useful as inhibitors of enkephalinase and of ACE.
Patent CA-2187316-A1 (CA)
Title: High temperature resistant antistatic pressure-sensitive adhesive tape
Inventor: GUTMAN GUSTAV
IPC: C09J7/38
Filed: 1995-03-16
Abstract: There is provided a heat-resistant anti-static pressure-sensitive adhesive tape comprising a substrate having opposing surfaces, at least one of said surfaces bearing thereon an acrylic microparticulate adhesive wherein the microparticles have an average diameter of 1 to 250 micrometers, wherein the microparticles have a surface bearing thereon an ionic conductive material formed from a polymer electrolyte base polymer and at least one ionic salt selected from the group consisting of salts of alkali metals and salts of alkaline earth metals, said adhesive being bonded to said substrate by means of a primer, said primer comprising at least one phenolic resin and at least one rubbery compound, said adhesive tape being capable of surviving immersion in molten solder at 260°C for at least 5 seconds.
Patent CA-2189328-A1 (CA)
Title: Tocopherol compositions for delivery of biologically active agents
Inventor: METTE RYDAHL SONNE
IPC: A61K47/22
Filed: 1995-05-15
Abstract: The present invention provides the use of a tocopherol or a derivative thereof as a solvent and/or emulsifier for substantially insoluble and sparingly soluble biologically active agents, especially in the manufacture of pharmaceutical compositions. Such compositions are particularly suitable for transmucosal, and especially intranasal or rectal administration, or administration via the oral cavity.
Patent CA-2191310-A1 (CA)
Inventor: VILTRO LOUIS JOHN
IPC: B29C55/08
Filed: 1995-05-18
Abstract: In accordance with the present invention there is provided an apparatus for conveying a web. The apparatus is able to continuously stretch the web or continuously release the stretching forces from a web in the cross-machine direction. The apparatus includes two pairs of opposing belts (21a, 22a, 31a 32a) wherein each belts travels along an endless path. The pairs of belts diverge or converge from each other in the cross-machine direction. Each pair of belts comprises an upper belts (22a, 32a) and a lower belt (21a, 31a) which are adjacent to each other. Each of the upper and lower belts has a non-planar outer surface which contacts the web. The non-planar outer surfaces of each upper belts continuously abuts the non-planar outer surface of its adjacent lower belts along a predetermined distance when traveling in the machine direction. This creates at least one nip for continuously gripping the web while it is being conveyed. The apparatus also includes a means for driving the belts so as to convey the web in the machine direction.
Patent CA-2191803-A1 (CA)
Inventor: CARDINAL SYLVAIN
IPC: H02K53/00
Filed: 1996-12-02
Abstract: Un appareil de conversion de l'énergie magnétique en énergie mécanique dont la source d'énergie est les champs magnétiques emmagasinés dans des aimants permanents. D'une relation angulaire entre deux aimants permanents permettant la diminution de la surface d'attraction directe émerge la compression magnétique. La compression magnétique engendre une poussée physique agissant sur l'aimant mobile. Cette poussée physique est le fruit du principe d'obéissance magnétique régissant les relations d'influences entre deux aimants permanents. Dans la prés ente invention le principe d'obéissance magnétique est le père de trois forces périmétriques: la force périmétrique maximale, la force périmétrique indirecte e t la force périmétrique indirecte momentannée. C'est trois forces tous parallèles à l a tangeante au périmètre de course contribuent à la rotation mécanique de l'arbre central de la présente invention et à fournir une énergie mécanique capable d'effectuer un travail.
Patent CA-2196108-A1 (CA)
Inventor: SIGOUIN CLAIRE C
IPC: B65B61/20
Filed: 1997-01-28
Abstract: A plastic film liquid pouch is formed from impermeable film sheet material and has opposed side walls with sealed circumferencial edges to form an enclosed chamber. A liquid product is provided in the chamber and a space is also provided to permit expansion of the liquid. An internal straw restraining passage is formed by seals between the opposed side walls. The straw restraining passage communicates with the liquid chamber and a straw is held loosely captive inside the passage and axially displaceable therein . The straw restraining passage defines a reduced cross-sectional area of the chamber whereby the opposed side walls of the bag at the restraining passage may be collapsed towards one another by the fingers of a user person thereby displacing a restricted quantity of liquid to expose the straw to grasp the straw and push an end of the straw through the film sheet material whereby to extract the liquid from the pouch either by sipping it through the straw or by compressing the pouch to force the liquid through the straw.
Patent CA-2198391-A1 (CA)
Title: Process and system for emergency smoke inhalation protection
Inventor: SMITH DENNIS
IPC: A62B23/02
Filed: 1995-08-31
Abstract: A method of emergency smoke inhalation protection of fire fighters in imminent life threatening situations includes configuring a canister (120) containing a filter medium (134) to evidence use. Such a device provides an indication of previous use of the filtering system and inhibits a fire fighter from using the system in an unauthorized manner.
Patent CA-2199127-A1 (CA)
Title: Chewing gum base manufacturing process using plurality of lubricating agents feed inlets
Inventor: SONG JOO H
IPC: A23G/
Filed: 1995-03-13
Abstract: A process for continuously producing a chewing gum base comprises the steps of continuously adding a hard elastomer, a filler and lubricating agents into a continuous (10), subjecting the elastomer, filler and lubricating agents to a dispersive mixing operation and followed by a distributive mixing operation and continuously discharging the resulting chewing gum base from the mixer while the adding and mixing steps are in progress. The lubricating agents are introduced into the continuous mixer at a plurality of spatially separated feed inlets (12, 13, 14 and 15). Preferably part of the lubricating agents are introduced into the mixer with the hard elastomer and the filler prior to the dispersive mixing zone, and a portion of the lubricating agents are introduced into the mixer downstream of the dispersive mixing zone but prior to the distributive mixing zone.
Patent CA-2199482-A1 (CA)
Inventor: MUCKE LARS HENRIK
IPC: H04B7/005
Filed: 1995-09-07
Abstract: L'invention concerne un procédé et des circuits fonctionnant selon ce dernier, conçus pour commander de manière adaptative la puissance transmise d'un émetteur AMDC (50, 102). Le procédé consiste: (a) à prérégler un registre tel qu'un compteur (112) selon une estimation du signal de gain maximum de l'émetteur, le compteur présentant une sortie de comptage représentative d'un signal de gain maximum de l'émetteur (max Tx); (b) à dériver un signal de gain de l'émetteur (gain TX) d'un signal AMDC reçu; (c) à comparer max TX à gain TX, et, si gain TX est supérieur à max TX, (d) à envoyer un signal de commande de gain dérivé de max TX à l'émetteur, et (e) à laisser le compteur continuer son comptage; ou, si gain TX est inférieur à max TX, (f) à envoyer un signal de commande de gain dérivé de gain TX à l'émetteur, et (g) à empêcher le compteur de continuer son comptage.
Patent CA-2199566-A1 (CA)
Title: An echo canceller for decreasing a deterioration factor of speech quality
Inventor: SHIRAKI KOICHI
IPC: H04B3/23
Filed: 1997-03-10
Abstract: The echo canceller of the present invention comprises a means for estimating an echo gain from a reception signal and a transmission signal; first level calculating means for calculating the power of the reception signal; second level calculating means For calculating the power of the transmission signal; echo gain estimating means for estimating an echo gain based on the power of the reception signal and the power of the transmission signal; and echo level estimating means for adding the estimated echo gain to the power of the reception signal to obtain an estimated echo level, third level calculating means for calculating the power of a residual signal; and comparator means for comparing the estimated echo level with the power of the residual signal after the echo cancellation; wherein the echo of the reception signal contained in the transmission signal is cancelled when said estimated echo level exceeds the value obtained by adding a margin to the power of the residual signal. The various powers may be logarithmic values.
Patent CA-2200402-A1 (CA)
Title: A machine for wrapping with sheet material
Inventor: SCALITI PIER CARLO
IPC: B65B49/00
Filed: 1997-03-19
Abstract: The articles     to be wrapped are located over the mouth of   a forming device with the interposition of a sheet of wrapping material. Extending from this     mouth is a cavity in which, as a result of the advancement of the article      caused by a pusher element,      the wrapper material  is wrapped around the front face of the article     relative to its direction of the advance.          Subsequently  the  cavity  contracts  around  behind  the article     to be wrapped and this contraction completes the wrapping of the wrapper material      around the article     itself.  The preferred application is in the packaging  of  food  products  such  as,  for  example, confectionery products.
Patent CA-2200763-A1 (CA)
Title: Super-Elastic Alloy Braid Structure
Inventor: SAMSON GENE
IPC: A61M39/08
Filed: 1997-03-21
Abstract: This is a braided tubular structure made up of a plurality of interwoven fibrous members, preferably ribbons, a majority of which comprise one or more superelastic and (at least) ternary alloys of nickel, titanium and at least about 1.5% (wt) of one or more alloying members elected from the group consisting of vanadium, chromium, manganese, iron and cobalt. <IMAGE>
Patent CA-2201028-A1 (CA)
Inventor: BROWNLEE DENNIS BRUCE
IPC: E21B21/01
Filed: 1997-04-10
Abstract: Just before the lifting of the tool joint, during drilling operations, the roughneck jacket is wrapped tightly around the tool joint, creating a seal and thereby controlling the flow of pressurized mud moving it downward and back into the mud system. The roughneck jacket consists mainly of a tapered leather and neoprene sheet (72cm x 100cm) which covers 75mm to 175mm pipe with heavy nylon strapping sewn along the top and velcro along the sides with a belt to cinch the top and lined with soft ribbed rubber.
Patent CA-2201912-A1 (CA)
Title: Additional heating system
Inventor: REISER PETER
IPC: B60H1/03
Filed: 1995-09-29
Abstract: The invention relates to the arrangement of an additional heater for the coolant circuit of an internal combustion engine of a motor vehicle, which coolant circuit comprises, on the one hand, a cooling circuit including the coolant/air radiator and, on the other hand, a heating circuit including the coolant/air heat exchanger for heating the passenger compartment. The technical problem with coolant circuits of modern engines, in particular diesel engines, consists, inter alia, in the fact that too little heat is available for the heating - consequently so-called additional heaters are used, e.g. fuel heaters. It is proposed to arrange the additional heater, which is configured as a fuel heater with a burner part and a heat exchanger part, directly on the coolant/air radiator of the vehicle or to integrate it into the radiator. This arrangement has the advantage that the burner with its fuel and exhaust gas lines is located outside the passenger compartment of the motor vehicle and thus does not adversely affect comfort and safety in the passenger compartment. Additionally, the flow-related inclusion of the additional heater in the coolant circuit is simpler and more cost-effective.
Patent CA-2202013-A1 (CA)
Title: Dot matrix liquid crystal display with low multiplex ratio
Inventor: PETERA MICHAEL G
IPC: G02F1/1343
Filed: 1997-04-07
Abstract: A dot matrix liquid crystal display has a low multiplex ratio and utilizes electrode leads which extend between adjacent electrodes on a glass plate substrate in the liquid crystal display.