baber/WOPTO huggingface dataset:
Patent CA-2032248-A1 (CA)
Inventor: MARTIN GUY
IPC: C02F3/06
Filed: 1990-12-14
Abstract: L'invention concerne un réacteur de nitrification biologique aérobie d'effluents contenant des ions NH4+, caractérisé en ce que la biomasse nitrifiante est fixée sur un support sous forme granulaire qui joue le rôle de substrat pour la biomasse, et en ce que la nitrification se fait en lit agité ou fluidisé. L'invention concerne aussi un procédé biologique de nitrification aérobie d'effluents. Ce procédé s'applique tout particulièrement au traitement d'eaux usées en vue d'en éliminer l'azote ammoniacal.
Patent CA-2034369-A1 (CA)
Title: Improved voter arrangement for multiple site pst rf trunking system
Inventor: BROWN THOMAS A
IPC: H04B7/24
Filed: 1991-01-17
Abstract: A digital voter system for a multiple site digitally trunked RF communications system includes an improved voting arrangement which tests for actual redundancy before removing redundant messages -- thereby decreasing retransmission traffic in simulcast and other large coverage area RF trunking systems. Status messages indicating ongoing call reception are generated periodically by each receiver site which receives a given call. The status messages are received by a digital voter, which in a clear voice mode is used to determine (in responses to the status messages) whether an analog voter should maintain a clear voice call.
Patent CA-2036223-A1 (CA)
Title: Ceramic product
Inventor: CLEGG WILLIAM J
IPC: C04B37/00
Filed: 1991-02-08
Abstract: Production of a layered ceramic product comprises positioning a first layer of a sinterable particulate ceramic material in face to face contact with a second layer of sinterable particulate ceramic material, sintering the particulate ceramic material and prior to effceting face to face contact, treating at least one of the surfaces to be positioned in face to face contact such that a zone of weakness is provided between the first and second layers of sinterable material.      The zone of weakness in the ceramic product acts to deflect a crack propagating across the layers of sintered material along the zone of weakness thereby increasing the work required to break the product. The layered ceramic product may also have an improved fracture toughness when a crack deflected along a zone of weakness does not propagate across an adjacent layer of sintered material from the tip of the crack in the zone of weakness.
Patent CA-2037223-A1 (CA)
Title: Probe for taking gas samples and heat measurements above the charging surface of a shaft furnace
Inventor: MAILLIET PIERRE
IPC: G01N1/12
Filed: 1991-02-27
Abstract: ABSTRACT Probe for taking gas samples and heat measurements above the charging surface of a shaft furnace The probe comprises a probe arm   provided with a series of orifices for simultaneously taking gas samples and measuring the heat at different locations of the charging surface and penetrating through an opening in the furnace. This opening  is surrounded by a support hoop ,   integrally connected to the wall  of the furnace and provided with two diametri-cally opposite outer journals ,    on which are articulated  two  parallel  arms   ,    supporting between them the probe arm . This arm can move about the centre of the said hoop ,  under the action of at least one actuator  mounted between the said hoop   ,     and the outer end of the probe arm ,  the  arm comprising a circular sliding surface moving, sealingly, over the inner surface of the said hoop   ,    .       Figure 1.
Patent CA-2038242-A1 (CA)
Inventor: OKIYAMA TAKUJI
IPC: H01F1/14
Filed: 1991-03-14
Abstract: A Ni-Fe-Cr soft magnetic alloy essentially consisting of 40-52% Ni, 0.5-5% Cr and balance Fe and satisfying the following conditions: 50 ~ (Ni%) + 4 x (Cr%) ~ 60;      S + O + B ~ 0.008%;      S ~ 0.003%;      O ~ 0.005%; and B ~ 0.005%;   has excellent magnetic characteristics for magnetic core materials.
Patent CA-2039754-A1 (CA)
Inventor: OLSEN ROBERT
IPC: B65B11/00
Filed: 1991-04-04
Abstract: Carrier stock formed from a single sheet of resilient polymeric material, such as low density polyethylene, for machine application to side walls of substantially identical containers.  Integrally joined band segments defining separate apertures to receive the individual containers include longitudinal, cross, and diagonal segments.  The diagonal segments are joined at generally X-shaped junctions.  From each junction, the generally oblique segments of a first pair are continuously curved toward the nearer edge of such stock and the diagonal segments of a second pair are substantially straight and tend toward the other edge of such stock.  Each diagonal segment of the first pair at each junction has a progressively changing width, being wider at its end joined at such junction than at its other end, and has a substantially uniform width.
Patent CA-2040502-A1 (CA)
Title: Marine propulsion device cowl assembly
Inventor: DUNHAM WILLIAM D
IPC: B63H20/00
Filed: 1991-04-15
Abstract: ABSTRACT OF THE INVENTION A marine propulsion device comprising a lower unit, a propeller shaft rotatably supported by the lower unit and adapted to support a propeller, an engine supported by the lower unit and drivingly connected to the propeller, the engine including an engine block, and a throttle arm movably mounted on the engine block, a control cable operably connected to the throttle arm, means for removably securing the control cable to the engine block, and a cowl assembly surrounding the engine and including a pan-like lower cover member and a dome-shaped upper cover member, on  of the cover members having therein an access opening, and means for affording access to the means for securing the control cable to the  engine  block, the  affording means including the  access opening, and an access cover removably secured to the cover member in covering relation to the access opening.
Patent CA-2040679-A1 (CA)
Title: Method of producing one-piece articles of complex shape from sheet metal
Inventor: SIEGERT KLAUS
IPC: B21D26/055
Filed: 1991-04-17
Abstract: ABSTRACT OF THE DISCLOSURE A one-piece article of complex shape is made by superplastic forming of a sheet metal workpiece to an intricate intermediate shape.  The intermediate shape is then cold formed to the final shape at room temperature.
Patent CA-2041766-A1 (CA)
Title: Pulse width modulated pressure control valve configuration
Inventor: MILLER ALAN L
IPC: F16H61/06
Filed: 1991-05-03
Abstract: ABSTRACT OF THE DISCLOSURE           A pulse width modulated valve configuration which includes on-off solenoid valve, a piston/spring damper-accumulator, and a pressure transducer for pressure feedback is disclosed.  The pulse width modulated valve configuration can be used as a substitute for a variable force solenoid valve which has internal pressure feedback and whose output pressure is proportional to the input command.  The present invention is a direct replacement for the proportional device and the pulse width modulated valve to be selected without regard to the configuration of the driven system.
Patent CA-2045723-A1 (CA)
Inventor: TERADA MASAHIRO
IPC: B29C45/00
Filed: 1991-06-26
Abstract: A large-sized exterior part of an automotive vehicle, injection-molded and formed of a polymer material comprising: (A) polypropylene in an amount ranging from 50 to 70 weight %, the polypropylene containing ethylene in an amount not more than 15 weight % relative to the polypropylene and having a MFR (at 230 °C) ranging from 5 to 60 g/10min.; (B) ethylene-propylene copolymer rubber polymerized in presence of a vanadium-based catalyst, in an amount ranging from 5 to 30 weight %, the copolymer containing propylene in an amount ranging from 20 to 40 weight % relative to the ethylene-propylene copolymer rubber and having a Mooney viscosity ML1+4(100°C) ranging from 20 to 80; (C) ethylene-propylene copolymer rubber polymerized in presence of a titanium-based catalyst, in an amount ranging from 5 to 45 weight %, the copolymer containing propylene in an amount ranging from 30 to 70 weight % relative to the ethylene-prolylene copolymer rubber and having a Mooney viscosity MLl+4(100°C) ranging from 20 to 75; and (D) polyethylene in an amount not more than 10 weight %, the polyethylene having a MFR (at 190 °C) ranging from 5 to 50 g/10 min. The injection-molded article has an average thickness ranging from 2 to 6 mm, a flexural elastic modulus ranging from 3000 to 6000 kg/cm2, and a coefficient of linear expansion not higher than 8 X  10-5/°C.
Patent CA-2045965-A1 (CA)
Title: Oxygen-permeable polymeric membranes
Inventor: TSUCHIDA EISHUN
IPC: B01D69/14
Filed: 1991-06-28
Abstract: ABSTRACT OF THE DISCLOSURE     Oxygen-permeable polymeric membranes, intended for use in processes for producing oxygen- or nitrogen-enriched air for industrial, medical, and other applications, are characterized by a complex which comprises (a) a copolymer of a vinyl aroma-tic amine and either (i) a fluoroalkyl acrylate or (ii) a fluoroalkyl methacrylate, and (b) a ligand taken from the group consisting of (1) porphyrins, (2) Schiff bases, (3) cyclidenes, and (4) amine-like macrocycles, and (c) a transition metal (II) ion.
Patent CA-2047930-A1 (CA)
Title: Linear image sensor of the contact type
Inventor: MACHIDA SATOSHI
IPC: H01L27/146
Filed: 1991-07-25
Abstract: ABSTRACT OF THE DISCLOSURE     A linear image sensor of the contact type for image scanners, facsimile machines, etc. is comprised of a plurality of image sensor chips arranged linearly with respect to one another. Each chip has an array of picture elements arranged with a given constant pitch set slightly smaller than a standard reading pitch in a main scanning direction, thereby ensuring uniform output performance of the image sensor.
Patent CA-2050086-A1 (CA)
Inventor: KADUNCE RANDY R
IPC: C03B40/033
Filed: 1991-08-28
Abstract: The number of bent laminated glass windshields having bull's-eyes that adversely affect its optical properties is reduced by using amorphous precipitated silica particles such as is used as flatting agents for paints, as a parting material between a pair of glass sheets during bending.  The particles form relatively soft agglomerates that are milled and classified to produce a narrow distribution of particle sizes as compared to the distribution found in untreated silica, such as diatomaceous earths previously used as a parting material.
Patent CA-2050467-A1 (CA)
Inventor: MEIXNER JURGEN
IPC: C08G18/73
Filed: 1991-08-30
Abstract: The present invention relates to aliphatic polyurethanes which contain acryloyl groups, have a viscosity at 23°C of 1000 to 300,000 mPa.s as an 80% by weight solution in butyl acetate and are based on the reaction product fat an NCO/OH equivalent ratio 0.5:1 to 1:1) of a) 1.0 mole of a polyisocyanate component containing at least 50 equivalent percent, based on NCO equivalents, of 1,6-diisocyanato-2,2,4-trimethylhexane and/or 1,6-diisocyanato-2,4,4-trimethylhexane with b) 0.7 to 1.5 moles of at least one monohydric alcohol having a molecular weight of 116 to 300 and containing acryloyl groups and c) 0.2 to 0.6 moles of at least one polyhydric alcohol having a molecular weight of 62 to 2000.      The present invention also relates to a process far the preparation of these aliphatic polyurethanes.
Patent CA-2050746-A1 (CA)
Title: Optical transceiver
IPC: H04B10/278
Filed: 1991-09-05
Abstract: An optical transceiver is coupled to a U-shaped optical bus and to data terminals employing CSMA/CD.  The optical transceiver includes a serial-parallel converter for carrying out a conversion between data to and from the data terminals and transmitting packets to be transmitted from and receiving packets to be received by the data terminals via the serial-parallel converter, an optical bus interface for matching the transmitting and receiving packets to the U-shaped optical bus which is used as a transmission line, a common bus which provides a data transfer path between the serial-parallel converter and the data terminals during transmitting and receiving operations, a transmitting packet intermission part for intermitting the transmitting packets in response to a transmission control signal, a receiving packet intermission part for intermitting the receiving packets in response to a reception control signal, and a controller for generating the transmission control signal and the reception control signal based on timings of the transmitting packet and the receiving packet, a relationship between the transmitting packet and a corresponding receiving packet which is looped back from the U-shaped optical bus, and a collision notification. The serial-parallel converter notifies a collision on the common bus based on an impedance of the common bus by supplying the collision notification to the controller.
Patent CA-2054218-A1 (CA)
Inventor: SHIMIZU KOJI
IPC: B32B27/00
Filed: 1991-10-25
Abstract: A method is disclosed for preparing a heterogeneous silicone rubber molding wherein a portion of the molding is formed from a semicured silicone rubber particulate and a portion from a thermosetting silicone rubber composition.  The mold is filled with the particulate and the thermosetting silicone rubber composition, then closed and pressurized and heated, forming the portions into a single body or element by curing the thermosetting silicone rubber composition at the same time that curing of the semicured silicone rubber particulate is brought to completion.
Patent CA-2054981-A1 (CA)
Title: Method for adjusting engine output power to compensate for loading due to a variable capacity air conditioning compressor
Inventor: BOLANDER WILLIAM J
IPC: F02M3/07
Filed: 1991-11-05
Abstract: METHOD FOR ADJUSTING ENGINE OUTPUT POWER TO   COMPENSATE FOR LOADING DUE TO A VARIABLE CAPACITY AIR CONDITIONING COMPRESSOR                Abstract of the Disclosure A method is described for adjusting the output power delivered by an internal combustion engine to compensate for variations in engine loading induced by a variable capacity refrigerant compressor of a vehicle air conditioning system.  This is accomplished by estimating the change in engine loading due to the compressor, based upon an indication of the engine intake air temperature, and then, adjusting the setting of an engine output power control mechanism, in accordance with the estimate.  An estimate for the change in engine loading induced when starting or stopping the variable capacity compressor is derived from a schedule of values based upon the temperature of the engine intake air.  An estimate for the change in engine loading induced by the off-idle operation of the variable capacity compressor is derived as a function of the difference between the intake air temperature and a retained previous value for the intake air temperature.
Patent CA-2055745-A1 (CA)
Inventor: RUEF WALTER DR
IPC: D21H19/56
Filed: 1991-11-18
Abstract: The water vapor permeability of a sheet of paper is reduced by coating the paper sheet with a film of a water-based coating medium consisting of a wood-rosin sizing dispersion containing at least one additive improving the film-forming properties of the coating medium, the additive being selected from the group consisting of surfactants, paraffin waxes and ammonia, and subjecting the coated paper sheet to a thermal treatment at a temperature between 50 and 120°C.
Patent CA-2057510-A1 (CA)
Inventor: NAKANO MASAO
IPC: B01D53/94
Filed: 1991-12-12
Abstract: A catalyst for purifying an exhaust gas to remove nitrogen oxides, carbon monoxide and hydrocarbons from an oxygen-rich exhaust gas containing nitrogen oxides, carbon monoxide and hydrocarbons comprising (i) a zeolite having an SiO2/Al2O3 mole ratio of at least 15 and (ii) (a) cobalt, (b) a rare earth metal and (c) silver, or nickel and/or zinc, or platinum and/or manganese, or copper and/or rhodium, incorporated thereinto.
Patent CA-2057671-A1 (CA)
Inventor: THEURER JOSEF
IPC: E01B27/00
Filed: 1991-12-13
Abstract: A loading wagon (2) for transporting and storing bulk material is constructed with a bogie frame (4) supported on rail running gear, a wagon body (5) provided for storage and having a floor conveyor belt located in its floor area and running in the longitudinal direction of the wagon and a transfer conveyor belt (10) which adjoins said floor conveyor belt, protrudes beyond the bogie frame (4) and can be swivelled about an axis of rotation (12) by a swivel drive. Said transfer conveyor belt is connected to a blocking device (19) for optionally limiting the swivel area of the transfer conveyor belt (10). 
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Patent CA-2057678-A1 (CA)
Title: Deactivatable transponder
Inventor: BATTERINK HENRI
IPC: G08B13/24
Filed: 1991-12-16
Abstract: ABSTRACT      A transponder for an electro magnetic detection system, comprising at least one signal element from soft magnetic material. Adjacent to the said signal element at least one deactivating element from hard magnetic material is provided. In the deactivated condition of the transponder the deactiva-ting element is magnetized according to a pattern of magnetic N- and Z-poles.  By the magnetic field from said poles the signal element is brought in the saturated condition. In the active condition of the transponder the deactivating element is demagnetized, by which the signal element is in the unsa-turated condition. The deactivating element comprises parti-cles from hard magnetic material having an at-random geome-tric orientation.
Patent CA-2059598-A1 (CA)
Inventor: UTTER ROBERT E
IPC: F01C21/00
Filed: 1992-01-17
Abstract: Title METHOD AND APPARATUS FOR ENHANCED SCROLL STABILITY IN A CO-ROTATIONAL SCROLL                       Inventors Robert E. Utter Daniel R. Crum Abstract In a co-rotational scroll apparatus having two interleaving scroll wraps secured to end plates rotating about parallel, non-aligned axes to produce a relative orbital motion, a mass secured to at least one of the scrolls for enhancing the nutational stability of the scroll member. Preferably, the nutation reducing means includes a mass affixed to an end plate of the scroll member to induce a dynamic imbalance during rotation of the scroll member, creating a balancing or moderating moment sufficient to compensate for the moment induced by the varying pressure of the fluids in the various compression chambers during the rotation of the scroll member.
Patent CA-2061055-A1 (CA)
Title: Cursor for lcd displays
Inventor: LEVINE JAMES L
IPC: G06F3/038
Filed: 1992-02-12
Abstract: CURSOR FOR LCD DISPLAYS   ABSTRACT OF THE DISCLOSURE            A method displays a visual "trail" (12b) behind a moving cursor (12a) so that the cursor does not disappear from a liquid crystal display (12) during rapid cursor movement. The  method  interpolates  and  displays  one  or  more intermediate cursor locations between a previous cursor location and a present cursor location.  A method also extrapolates one or more future cursor locations (12c) from a present location and prematurely turns on,  or biases,  pixels  located  at  the  extrapolated  future locations so that a significantly shorter period of time is  required  to  cause  the  pixels  to  become  visually distinct.  The  method  also  interpolates  intermediate cursor locations between the present location and the one or more extrapolated locations and prematurely turns on the pixels at the interpolated locations.
Patent CA-2061135-A1 (CA)
Title: Power amplifying means for r.f. signals
Inventor: PIKE TUDOR D
IPC: H04B1/04
Filed: 1992-02-13
Abstract: ABSTRACT            Power Amplifying means for r.f. Signals A  known pulse width modulator transmitter amplifies a constant  amplitude r.f.  signal from drive 7 in  dependence on the  level  of  supply voltage to the power  amplifier  2 which in  turn  depends on the amplitude of an  audio  input which controls  a  pulse  width modulator  1.   However  the transmitter  is  convertible  to  a single  side  band  mode because  a signal derived from the envelope of an  amplitude modulated  drive  waveform from drive 7 is  predistorted  in compensation  network  9  and so controls  the  pulse width modulator  1 as to maintain the supply voltage of the  power amplifier,  now  operating in a linear  mode,  substantially constant  despite the now varying input current requirements of the amplifier.
Patent CA-2064735-A1 (CA)
Title: Commutator for orbiting gerotor-type pumps and motors
Inventor: DLUGOKECKI ANDREW N
IPC: F04C2/10
Filed: 1990-08-06
Abstract: An improved commutator (27) for a gerotor-type hydraulic pump or motor (11) of the type having an orbiting outer (15) or inner (17) gear. Such pumps or motors require a commutator having a circular array of alternating inlet and outlet openings adjacent to a rotating valve plate (23) which regulates flow to the gerotor gears. The commutator of the present invention has a chambers section (49) and a fluid pathways section (47). The chambers section has a radially inner (65) and a radially outer (67) chamber disposed therein radially beneath the inlet port (55) and outlet port (57) of the pump or motor, also disposed in the chambers section.  The radially outer chamber and radially inner chamber are each connected to one of the inlet and outlet ports. The pathways section has a circular array of alternating inlet (29) and outlet (31) openings therein and includes fluid pathways which connect these inlet and outlet openings, respectively, to one of the radially inner and radially outer chambers of the chambers section.
Patent CA-2067026-A1 (CA)
Title: Electrode tip dresser and cutter for electrode tip dresser
Inventor: KIZAKI HIROYUKI
IPC: B23K11/30
Filed: 1992-04-24
Abstract: A cutter for use in an electrode tip dresser, which has a cutter holder for holding the cutter and dresses an electrode tip for a resistance welding apparatus, has a rising portion which has a cutting tooth for cutting a front peripheral portion of the electrode tip and a flat portion which faces a front end surface of the electrode tip.  The flat portion has a single cutting tooth for cutting the front end surface of the electrode tip.  The single cutting tooth extends from that central point of the cutter as and origin which coincides with an axis of rotation of the cutter holder towards a predetermined radial direction.  An origin portion of the single cutting tooth further extends beyond the central point towards a direction which is opposite to the radial direction.
Patent CA-2070040-A1 (CA)
Title: Merocyanine and nitro or nitroso substituted polyhalogenated phenol-sulfonephthaleins as protein indicators in biological samples
Inventor: COREY PAUL F
IPC: C07D327/04
Filed: 1992-05-29
Abstract: Abstract The present invention provides an analytical test strip for the detection of protein in a biological sample including a novel combination of protein error indicators. The invention includes, in combination, a partially halogenated phenolsulfonephthalein protein error indicator having nitro or nitroso substituent groups in the B and/or C rings and a merocyanine protein error indicator.
Patent CA-2070285-A1 (CA)
Title: Dispositif de generation d'instructions d'entree-sortie pour systeme de traitement de donnees
Inventor: HIDAKA YUJI
IPC: G06F13/12
Filed: 1991-10-02
Abstract: Une commande d'E/S d'un système de contrôle est appliquée à un système de traitement de données comprenant un module processeur englobant une UCT et un module adaptateur qui est connecté au module processeur via un bus système.  Le module adaptateur régit un dispositif d'E/S grâce à une commande d'E/S provenant du module processeur.  L'UCT effectue des traitements distincts après l'émission de la commande d'E/S et le module d'adaptateur retourne un résultat de processus; ce résultat est basé sur la commande d'E/S provenant du module processeur.  Une demande d'interruption est lancée, quand un processus dans le module adaptateur échoue, à l'UCT du module processeur afin de lui faire connaître le résultat du processus dans le module adaptateur.