baber/WOPTO huggingface dataset:
Patent NO-176765-C (NO)
Inventor: DIXIT NAGARAJ
IPC: C11D3/12
Filed: 1990-05-16
Abstract: Automatic dishwasher detergent composition is formulated as a linear viscoelastic, pseudoplastic, gel-like aqueous product of exceptionally good physical stability, low bottle residue, low cup leakage, and improved cleaning performance, Linear viscoelasticity and pseudoplastic behavior is attributed by incorporation of cross-linked high molecular weight polyacrylic acid type thickener. Potassium to sodium weight ratios of at least 1/1 minimize amount of undissolved solid particles to further contribute to stability and pourability. Control of incorporated air bubbles functions to provide the product with a bulk density of about 1.35 to 1.40 g/cc which roughly corresponds to the density of the liquid phase. Stearic acid or other fatty acid or salt further improves physical stability.
Patent AU-740951-C (AU)
Title: Method for Noise Reduction, Particularly in Hearing Aids
Inventor: BRENNAN ROBERT
IPC: H04R25/00
Filed: 1998-04-16
Granted: 2004-01-22
Abstract: This invention describes a practical application of noise reduction in hearing aids. Although listening in noisy conditions is difficult for persons with normal hearing, hearing impaired individuals are at a considerable further disadvantage. Under light noise condition, conventional hearing aids simplify the input signal sufficiently to overcome the hearing loss. For a typical sloping hearing loss where there is a loss in high frequency hearing sensitivity, the amount of boost (or gain) rises with frequency. Most frequently, the loss in sensitivity is only for low-level signals; high level signals are affective minimally or not at all. A compression hearing aid is able to compensate by automatically lowering the gain as the input signal level rises. This compression action is usually compromised under noisy conditions. In general, hearing aids are of lesser benefit under noisy conditions since both noise and speech are boosted together when what is really required is a reduction of the noise relative to the speech. A noise reduction algorithm with the dual purpose of enhancing speech relative to noise and also providing a relatively clean signal for the compression circuitry is described. <IMAGE>
Patent CA-2008684-C (CA)
Title: Rotating cylindrical screen
Inventor: LANGNER HERBERT GUNTHER JOACHI
IPC: B01D33/067
Filed: 1990-01-26
Granted: 1996-08-13
Abstract: An improved cylindrical rotary screen having as a screen member a composite element comprising a radially inner layer of fine mesh screening supported on a radially outer layer of apertured, expanded metal sheeting.  The radially inner layer of fine mesh screening is provided as a number of removable modular panels which are longitudinally slidable in and out of the open discharge end of the cylindrical screen. The rotary screen provides excellent filtration yet is simple to manufacture and maintain.
Patent CA-2012087-C (CA)
Title: Vertical air flow ingot pusher furnace with adjustable side baffles
Inventor: ROSS ROBERT H
IPC: F27D7/04
Filed: 1990-03-13
Granted: 1995-10-10
Abstract: An ingot  pusher furnace  of the  vertical air flow type includes adjustable side baffles hingedly connected to  lower  ends  of  respective vertical side baffles to prevent the "short circuiting"  of  heated  gases around the ends  of an ingot to be heated.  The adjustable side baffles are  movable  from  a  vertical  position  to an angled position  so that  its upper  ends are in closely spaced proximity with the  outer faces  on the  end por-tions of  the shorter  length ingot  so as  to produce a more uniform and faster  heat transfer  along the entire length thereof.
Patent CA-2019007-C (CA)
Title: System for attenuation of water-column reverberations
Inventor: BARR FREDERICK J
IPC: G01V1/36
Filed: 1990-06-14
Granted: 1999-01-26
Abstract: A marine seismic reflection prospecting system reduces coherent noise by applying a scale factor to the output of a pressure transducer and a particle velocity transducer positioned substantially adjacent one another in the water.  The transducers can be positioned at a point in the water above the bottom and, thereby, eliminate downgoing components of reverberation, or they can be positioned on the water's bottom and, thereby, eliminate both upgoing and downgoing components of the reverberation.  The scale factor, which derives from the acoustical impedance of the water or water-bottom material, can be determined both deterministically and statistically.  The former involves measuring and comparing the responses of the pressure and velocity transducers to a pressure wave induced in the water. The latter involves comparing the magnitude of the pressure signal autocorrelation to the pressure and velocity signal crosscorrelation at selected lag values or, alternatively, comparing the magnitude of the pressure signal autocorrelation to the velocity signal autocorrelation at selected lag values.
Patent CA-2020789-C (CA)
Title: Noise mitigation and mode switching in communications terminals such as telephones
Inventor: CAREW EDWARD C
IPC: H04M9/08
Filed: 1990-07-10
Granted: 1994-05-10
Abstract: ABSTRACT       A circuit to improve noise mitigation and mode switching in telephony, wherein the noise-floor level is continuously estimated by comparing its stored current value to the signal level value and substituting the latter for the former if it is less than the former.
Patent CA-2021707-C (CA)
Inventor: YOSHIDA AKIHIKO
IPC: H01M10/39
Filed: 1990-07-20
Granted: 1998-11-03
Abstract: A sodium sulfur cell comprising a cathode active material of metallic sodium, and anode active material of sulfur or sodium polysulfide, and a beta alumina solid electrolyte separator, at least one of the above active materials containing, as an impurity, calcium of at most 20 ppm and/or potassium of at most 200 ppm, by weight.  The cell of the invention has excellent characteristics, particularly a prolonged electromotive life.
Patent CA-2023082-C (CA)
Title: Banana based frozen nondairy dessert
Inventor: FELDPAUSCH DAVID
IPC: A23L19/00
Filed: 1990-08-10
Granted: 2001-11-20
Abstract: A frozen-nondairy dessert having the creamy texture and the mouth feel of an ice cream product comprised of a frozen banana based composite of bananas alone or in combination with flavor providing substances. Preferably ripe banana or banana mixture which has been quick frozen preferably in small mass units and maintained in a frozen state till time of use. The frozen banana composite is first masticated, then whipped to achieve a significant overrun and either served immediately, or refrozen, preferably quickly for future use.      Fruits, nuts, and flavorings may be blended into the banana composite prior to the freezing step or they can be mixed with the frozen composite during mastication or aeration.
Patent CA-2027657-C (CA)
Title: Method for preparing laminates of znse and zns
Inventor: KIRSCH JEFFERY L
IPC: C23C16/02
Filed: 1990-10-15
Granted: 1998-01-06
Abstract: An improved method of forming a ZnS layer on a Znse substrate by chemical vapor deposition of ZnS onto the ZnSe is disclosed in which the ZnS is contacted, prior to the chemical vapor deposition of the ZnS, with H2S in the absence of zinc metal vapor to cause reaction of the H2S and the surface of the ZnSe substrate.
Patent CA-2028600-C (CA)
Title: All weather garment
Inventor: ROBISON MAURICE L
IPC: A41D13/00
Filed: 1990-10-25
Granted: 1994-05-10
Abstract: ABSTRACT OF THE DISCLOSURE      An insulated all weather garment in male and female configuration is disclosed which includes an internal waterproof layer having sealed stitching protecting the upper legs and lower torso of a wearer from moisture penetrating from the outdoor atmosphere.
Patent CA-2037282-C (CA)
Title: Microbicides immobilized in water-soluble thermoplastic polymeric resins and aqueous dispersions of microbicides prepared therefrom
Inventor: REI NUNO M
IPC: D06M13/51
Filed: 1991-02-28
Granted: 1997-01-28
Abstract: Solid solutions comprise a water-soluble thermoplastic resin and a microbicide dissolved therein. These solutions may be added to a rigid thermoplastic resin composition to impart biocidal characteristics thereto.  If the microbicide is water-insoluble, the solid solutions may be used to prepare stable dispersions of the microbicide.  The solutions also provide for slow release of a microbicide or as a vehicle for providing microbicide to an aqueous solution.
Patent CA-2046204-C (CA)
Inventor: PETIT JEAN-MICHEL
IPC: B61F3/04
Filed: 1991-07-04
Granted: 1997-04-22
Abstract: Bogie à roues indépendantes motorisées pour véhicule ferroviaire, incluant un châssis transversal et des bras articulés au châssis par des articulations élastiques, les bras reliant les roues au châssis, chaque bras supportant un moteur de traction. Chaque moteur est désaxé par rapport à la roue qu'il entraîne, et chaque bras constitue un carter de transmission entre le moteur qu'il supporte et la roue correspondante.
Patent CA-2047320-C (CA)
Title: Television signal transmission processing apparatus and reception processing apparatus
Inventor: KAWAI KIYOYUKI
IPC: H04N7/00
Filed: 1991-07-18
Granted: 1997-06-10
Abstract: On the transmission side, a delay unit, an adder, and a subtracter obtain an interframe sum output by calculating, in units of two frames, an interframe average sum of progressive scanning signals each having N scanning lines [per frame], and an interframe dif-ference output by calculating, in units of two frames, an interframe average difference related to moving image data.  The interframe sum output is band-limited to a band which can be transmitted with a conventional scheme by switching, time expansion, vertical filtering, and first scanning line count conversion, and converted into M scanning lines [per frame].  The interframe difference output is band-limited to a band effective for resolu-tion improvement of a moving image in a receiver of a conventional scheme by switching, time expansion, vertical filtering, horizontal filtering, and second scanning line count conversion, and converted into M scanning lines [per frame].  Outputs obtained by first and second scanning line count conversions are input to a sum arithmetic means to generate a first frame signal, and input to a difference arithmetic means to generate a second frame signal.  The first and second frame signals are transmitted as an interlace scanning signal of M scanning lines [per frame] for a central portion thereof.
Patent CA-2051284-C (CA)
Title: Power generation system using fuel cells
Inventor: MORIMOTO HIROMASA
IPC: H01M8/06
Filed: 1991-09-13
Granted: 1995-02-07
Abstract: The power generation system includes a reformer and two fuel cell stacks.  The reformer and the fuel cell stack are provided in series.  Fuel gas produced by the reformer is introduced to a first anode of the first fuel cell stack.          Gases discharged from the first anode are directly introduced to a second anode of the second fuel cell stack.  Air is introduced to a first cathode of the first fuel cell stack.          Gases discharged from the first cathode are cooled by a cooling device and then introduced to a second cathode of the second fuel cell stack.  Gases discharged from the second anode and gases discharged from the second cathode are introduced to a heating chamber of the reformer.  Gases discharged from the heating chamber are introduced to a steam generator to produce steam used for reformation and then recirculated to the first cathode.
Patent CA-2052834-C (CA)
Title: Homodyne optical receiver equipment
Inventor: TSUSHIMA HIDEAKI
IPC: H04B10/07
Filed: 1991-10-04
Granted: 1995-04-18
Abstract: A homodyne optical receiver equipment has a polarization beam splitter for dividing an optical signal into an optical signal with horizontal polariza-tion and an optical signal with vertical polarization; optical couplers for combining two optical signals of the two poalrized components with two optical local signals, which are almost matched therewith in the polarization, in a state where they are matched with each other in the phase, respectively; detectors for homodyne-detecting respective output optical signals of the optical couplers; two weighting circuits for giving output signals of the detectors weights approxi-mately proportinal to amplitudes thereof, respectively; and an adder, which adds output signals of said weighting circuits to each other.
Patent CA-2053737-C (CA)
Title: Converter input/output voltage balancing control
Inventor: KARLSSON BROR MATS
IPC: H02M3/335
Filed: 1991-10-16
Granted: 1999-12-21
Abstract: The invention relates to a method and a circuit arrangement for controlling power valves included in at least one converter forming part of a converter circuit which on its input receives at least two DC input voltages and transmits current pulses respectively corresponding to these DC voltages to a common load via a common output filter, the controlling aiming at keeping the DC voltages equal. The method includes the steps of: determining a stop time for the current pulses as a function of a difference between the input voltages, such that the stop time of current pulses originating from a lower of the at least two input voltages is postponed in relation to the difference; and determining a starting time of the current pulses as a function of the difference between the input voltages, such that the starting time for a current pulse originating from a lower of the at least two input voltages is postponed in relation to the difference. The method and control circuit regulate the input voltages by shifting the respective current pulses with respect to each other, essentially without changing widths of the current pulses.
Patent CA-2067994-C (CA)
Title: Device for scanning pale colour marks on a printing machine
Inventor: MONNEY PATRICK
IPC: B41F33/00
Filed: 1992-05-05
Granted: 1996-11-26
Abstract: The invention relates to a device for scanning marks printed on workpieces travelling under a light source.  The device includes at least two parallel mark scanning channels emitting an electric impulse due to the passage of a mark, each channel being sensitive to a particular colour.  The device includes, moreover, electronic means for selecting the most respresentative mark impulse among the electric impulses emitted by the channels.
Patent CA-2075342-C (CA)
Inventor: KOIKE TSUNEAKI
IPC: G02F1/361
Filed: 1992-08-05
Granted: 1999-11-23
Abstract: A novel hydrazine compound represented by the formula (I) is disclosed.   (see formula I) Also disclosed are a process for preparing the novel hydrazine compound comprising reacting a specific hydrazine compound and a specific acid halide, a nonlinear optical organic material comprising the hydrazine compound represented by the above formula (I), and a nonlinear optical organic element comprising the nonlinear optical organic material. The nonlinear optical organic material shows excellent nonlinear optical effect, and the material is favorably applied to nonlinear optical organic elements such as an optical wavelength conversion element and an electrooptical element.
Patent CA-2083770-C (CA)
Title: Method of producing long steel products
Inventor: PLESCHIUTSCHNIGG FRITZ-PETER
IPC: B22D11/12
Filed: 1992-11-25
Granted: 2002-07-16
Abstract: A method of producing long products of steel by continuous casting in a continuous casting mold, wherein the steel products have the dimensions for the initial pass of a longitudinal rolling mill. Liquid steel is poured into a rotor-cooled continuous casting mold in which the steel solidifies partially with the formation of a ring-shaped strand shell having a round or oval shape in the cross-sectional area of the strand or a polygonal shape having more than four corners, and having a minimum circumference of 200 millimeters. The strand produced in this manner is reduced underneath the mold in its cross-sectional surface area until the strand fully solidifies by means of support members which act in a deforming manner on the strand, such that, while essentially maintaining its circumferential length, the strand is deformed into a shape meeting the requirements with a polygonal cross-section with at least four corners or an oval or round cross-section.
Patent CA-2085460-C (CA)
Title: Video gaming machine
Inventor: MANSHIP JON
IPC: A63F13/45
Filed: 1992-12-15
Granted: 1997-02-18
Abstract: A video slot machine includes a display screen on which the wheels of a slot machine are simulated.  The display screen is divided into an array of cells with each cell displaying an individual game element selected randomly from a group of available game elements during a game play.  Pay-out lines are associated with the rows, columns and diagonals of the array of cells and visually indicate some of the pre-determined sets of cells which are examined to detect winning combinations of displayed game elements.  Pay-out tables are stored in memory within the machine and hold information concerning combinations of game elements in all of the pre-determined sets of cells which result in a win when displayed on the screen together with the amount to be paid for each winning combination of game elements. When the game is played and the screen displays a randomly selected game element in each of its cells, the machine consults the pay-out tables to determine if the game elements as displayed in the cells result in a winning combination of game elements as stored in the pay-out tables and calculates the amount to be paid. Therefore, depending on the elements displayed in the array of cells, winnings from more than one pay-out table may result.  The winning combinations of game elements, the pre-determined sets of cells, the number of available game elements and the amount paid for each winning combination of displayed game elements are selected so that the expected return of the video slot machine complies with regulatory restrictions while still ensuring that the game is dynamic and appealing to a player.
Patent CA-2088119-C (CA)
Title: Sternum banding assembly
Inventor: BLASNIK WILLIAM
IPC: B25B25/00
Filed: 1993-01-26
Granted: 1998-09-01
Abstract: A banding assembly has a needle at one end, a long thin band, and a buckle at the other end. The buckle is provided with upstanding elements on either side of a channel which receives the band.  The elements have openings adapted to be engaged by a towel clamp to retain the buckle as the band is drawn through the channel and locks into position.  The elements are normally spaced apart by a distance slightly less than the width of the band. Once locked into place, the band is trimmed, leaving a tail extending from the buckle. The tail is bent backwards and "snap fits" between the elements. The elements are then crimped over the tail to retain it on the buckle and to cover any sharp edges. A dome-like member is provided to guide the band into the channel. The buckle is attached to the end of the band by spaced tabs which extend through openings in the band and are crimped toward each other.
Patent CA-2088504-C (CA)
Title: Radially adjustable anvil roll assembly for a rotary die cutting press
Inventor: STANLEY MELVIN C
IPC: B21B31/26
Filed: 1991-09-24
Granted: 1995-07-25
Abstract: A radially adjustable anvil roll assembly (14) is provided for use with a die cutting cylinder (28) of a rotary die cutting press (12). The adjustable anvil roll assembly (14) comprises a shaft (56) mounted for selec-tive and intermittent rotation on the press (12), and a pair of eccentrics (58) provided on an intermediate por-tion of the shaft (56). A hollow cylindrical sleeve (54) is mounted for free rotation on the shaft eccentrics (58). Rotating the shaft (56) so that the maximum ec-centricity of the eccentrics (58) is directed toward the die cutting cylinder (28) adjustably positions the cylin-drical sleeve (54) in its closest adjusted position to-ward the cylinder (28). Rotating the shaft (56) 180° so that the maximum eccentricity of the eccentrics (58) is directed away from the die cutting cylinder (28) ad-justably positions the cylindrical sleeve (54) in a radi-ally adjusted position furthest away from the die cutting cylinder (28). The shaft (56) is selectively and in-crementally rotated only when adjusting the relative position of the sleeve (54) to the die cutting cylinder (28) and does not rotate during cutting operations of the press (12).
Patent CA-2092555-C (CA)
Title: Preparation of polyhydroxy fatty acid amides in the presence of solvents
Inventor: CONNOR DANIEL STEDMAN
IPC: C09K23/38
Filed: 1991-09-25
Granted: 1998-04-21
Abstract: Polyhydroxy fatty acid amide materials are prepared from reactants such as N-methylglucamine and fatty acid esters in the presence of hydroxy solvents. Polyhydroxy fatty acid amide detersive surfactants are secured. By-product and color formation are minimized.
Patent CA-2093768-C (CA)
Title: Centrifugal oil pump booster
Inventor: ROBERTSON KENNETH D
IPC: F04B39/02
Filed: 1993-04-08
Granted: 1998-07-28
Abstract: A compressor assembly including a crankshaft with an axial oil passageway therein.  An oil pump booster is mounted on the crankshaft to increase the oil flow rate through the axial oil passage. The oil pump booster includes a counterweight and an enclosed channel extending in the radial direction communicating with the axial passageway of the crankshaft.  During rotation of the compressor crankshaft, the radial oil channel is likewise rotated creating a centrifugal force or reduced pressure area to increase the oil flow through the axial passage.
Patent CA-2098606-C (CA)
Inventor: TAYLOR THOMAS M
IPC: H01M8/10
Filed: 1991-10-18
Granted: 1994-10-25
Abstract: In a solid-electrolyte  fuel cell, a permeable catalytic electrode in contact with a solid electrolyte (14) is ordinarily exposed to a mixture comprising an oxidizer and a hydrogen-containing fuel. To increase the fuel efficiency of the cell, the permeable electrode (26) is patterned and coated with a material (20) that is permeable to the fuel but relatively impermeable to the oxidizer. The oxidizer enters the electrolyte through channels (22) where the surface of the electrolyte is not covered by the patterned and coated electrode.
Patent CA-2099039-C (CA)
Inventor: BEHARRY CHRISTOPHER RANDALL
IPC: C07C51/42
Filed: 1993-06-23
Granted: 1997-08-19
Abstract: A process for removing chlorophyll color impurities from vegetable oils, the process comprises: i) dispersing a source of phosphoric acid in vegetable oil to form a mixture having a moisture content of less than 0.1% by weight which mixture is maintained at a temperature in the range of 70°C to 160°C until a precipitate containing chlorophyll color impurities is formed; and ii) at any time thereafter during conventional oil processing up to and including the removal of bleaching clay from the oil, separating the precipitated material from the oil to remove the chlorophyll color impurities with the precipitated material.