baber/WOPTO huggingface dataset:
Patent NO-173354-C (NO)
Inventor: BONETTI GIULIO
IPC: G01F23/76
Filed: 1988-06-06
Abstract: The pressurized magnetic float level indicator for recipients containing liquids at high pressure and temperature of the invention comprises a tubular body with a vertical axis which is closed at its ends and communicates at the top and bottom with a recipient containing liquid whose level is to be indicated, within which there is a float (5) provided with a magnetic element (11) designed to orientate a plurality of rotary magnetic dipoles aligned in parallel with the tubular body, the float (5) being provided with inner rings (10) and being pressurized with an evaporating mixture having a stream pressure which varies with variations in the internal temperature of the float (5) along a curve corresponding to the variation of the pressure with the temperature of the liquid contained in the recipient and in the tubular body externally to the float (5), this stream pressure within the float at least partially balancing out the pressure outside it.
Patent NO-176752-C (NO)
Inventor: SMEDAL ARNE
IPC: B63B21/50
Filed: 1992-07-24
Abstract: PCT No. PCT/NO93/00118 Sec. 371 Date Mar. 29, 1995 Sec. 102(e) Date Mar. 29, 1995 PCT Filed Jul. 23, 1993 PCT Pub. No. WO94/02351 PCT Pub. Date Feb. 3, 1994A device for guiding a loading/unloading buoy during pulling-up into a receiving space in the bottom of a vessel. The device includes a guide cylinder which is vertically moveable in a shaft in the vessel. The guide cylinder is extend into the receiving space such that guide elements on the guide cylinder provide side stabilization of the buoy as it is brought into the receiving space.
Patent NO-180780-C (NO)
Inventor: HAYAKAWA ISAO
IPC: A61P31/04
Filed: 1993-11-26
Abstract: Known synthetic antibacterials having a condensed pyridonecarboxylic acid skeleton include quinolone derivatives having various substituents at various positions of the skeleton. The possibility of the presence of diastereoisomerism in these derivatives, however, gives rise to a mixture of at least four diastereomers having properties differing from one another, resulting in the difficulty in applying the same as such as a medicine. Under these circumstances the present invention provides an antibacterial 1-(1,2-cis-2-fluorocyclopropyl) quinolone derivative represented by general formula (I) comprising a single diastereoisomer even when there are various diastereoisomers thereof. In formula (I), R<1> represents methyl, difluoromethyl, etc.; R<2> represents a saturated nitrogenous heterocyclic group; A represents C-X<3> or nitrogen; X<1> and X<2> represent each independently halogen; and X<3> and Z represent each hydrogen, etc. <CHEM>
Patent CA-2002657-C (CA)
Title: Addressing scheme for multiplexed ferro-electric liquid crystal
Inventor: BIRCH MARTIN JOHN
IPC: G02F1/133
Filed: 1989-11-09
Granted: 1998-05-12
Abstract: A ferroelectric liquid crystal cell matrix address scheme that uses bipolar strobe pulses (20) to co-operate with bipolar data pulses (21,22) in a way that it can switch pixels into different states in a single refreshing not preceded by page blanking.
Patent CA-2008419-C (CA)
Title: Winterized road signs
Inventor: DORUS VASILE
IPC: G09F7/22
Filed: 1990-01-24
Granted: 2000-07-25
Abstract: The way the road signs are at the present time during the winter storms they get covered with snow making it imposible to see what the signs say.          In this invention the road signs are concepted to permit the snow and the wind to go through the sign.
Patent CA-2016701-C (CA)
Title: A process for steam reforming of hydrocarbons
Inventor: TABATA TAKESHI
IPC: C01B3/34
Filed: 1990-05-14
Granted: 1999-08-10
Abstract: A novel process for desulfurizing and steam reforming sulfur-containing hydrocarbons is disclosed. The process comprises the steps of (a) desulfurizing the sulfur-containing hydrocarbon to a sulfur content of 5 ppb or less by use of a desulfurization agent, (b) reforming the desulfurized hydrocarbon at low temperature in an adiabatic reactor by use of steam, and (c) reforming the resultant gas reformed in the course of step (b) at high temperature in an external-heating reformer furnace.
Patent CA-2016860-C (CA)
Title: 2-piperidino-1-alkanol derivatives as antiischemic agents
Inventor: CHENARD BERTRAND L
IPC: C07D451/06
Filed: 1990-05-15
Granted: 1998-07-28
Abstract: 2-(8-Azabicyclo[3.2.1]oct-8-yl)alkanols of the formula   wherein Q is S or CH=CH; X is H, OH or another aromatic substituent; R is hydrogen, alkyl, alkenyl or alkynyl;          Y and y1 are taken together and are arylmethylene or aralkylmethylene (or a corresponding epoxy derivative) or Y and y1 are taken separately and Y is hydrogen or OH, and y1 is aryl, aralkyl, arylthio, or aryloxy; and structurally related 2-(piperidino)alkanols; pharmaceutical compositions thereof; methods of treating CNS disorders therewith; and intermediates useful in the preparation of said compounds.
Patent CA-2018704-C (CA)
Title: N-phenylpyrazole derivatives
Inventor: MCGUIRE ROSS
IPC: A61P33/02
Filed: 1990-06-11
Granted: 2000-08-29
Abstract: The invention provides N-phenylpyrazole derivatives of the formula:   (see formula I) wherein R1 represents alkyl optionally substituted by halogen, R2 represents an optionally substituted aryl or aralkyl group, R3 represents a phenyl group substituted in the 2-position by halogen; in the 4-position by optionally halo substituted alkyl or alkoxy; and optionally in the 6-position by halogen; and m and n are independently 0, 1 or 2; which are active against arthropod, plant nematode, helminth and protozoal pests.
Patent CA-2024680-C (CA)
Inventor: ALLIS WAYNE
IPC: F16H57/021
Filed: 1990-09-05
Granted: 2000-11-07
Abstract: The assembly is so configured as to use common parts, whereby another assembly, having a different gear ratio, can be formed using the selfsame common parts. Only different gears, and a different frame is required to form the alternative assembly having the other gear ratio.      Accordingly, stocking of discrete parts for the differing assemblies is greatly reduced.
Patent CA-2026791-C (CA)
Title: Adjustable feeding device for poultry
Inventor: VAN DAELE ANTOINE A
IPC: A01K39/012
Filed: 1990-10-03
Granted: 1993-08-17
Abstract: ADJUSTABLE FEEDING DEVICE FOR POULTRY.                  Abstract of the disclosure A feeding device, in particular for poultry, comprising an essentially dish-shaped pan with a bottom and an upright peripheral wall in which feed can be presented to the birds, and the bottom of which is provided with a central upright part, a drop tube for the supply of feed to the pan, the lower free end of which is situated centrally above the bottom of the pan, which drop tube can be moved over a limited, variable distance relative to the bottom of the pan in order to form a first feed supply opening of variable size between the bottom free end of the drop tube and the bottom of the pan, as a result of which feed can pass from the drop tube into the pan, and which drop tube at a distance from the free end is provided with one or more second feed supply openings, in the bottom position of the drop tube the first feed supply opening being closed and the second feed supply opening(s) being opened, and in the top position of the drop tube the first feed supply opening being open and the second feed supply opening(s) being closed, wherein the central upright part of the bottom of the pan extends in the bottom part of the drop tube and is formed in such a way that in the bottom position of the drop tube the top side of the central upright part reaches to the bottom edge of the second feed supply opening(s) and at that point shuts off the drop tube to the bottom thereof. The top side of the central upright part of the bottom of the pan preferably has a conical shape. The top side of the central upright part of the bottom of the pan, on the one hand, and the top edge of the second feed supply opening(s), on the other hand, preferably bound a passage which prevents a one-day-old chick from passing. In the bottom position of the drop tube the bottom edge of the second feed supply opening(s) advantageously lies lower and the top edge thereof lies higher than the top edge of the upright peripheral wall of the pan. Preferably, the bottom part of the drop tube which is below the second feed supply opening(s) is essentially conical-shaped.
Patent CA-2027256-C (CA)
Title: Fire retardant compositions
Inventor: DUEBER ERNST OTTO
IPC: C08G18/32
Filed: 1990-10-10
Granted: 2001-01-30
Abstract: The invention provides a fire retardant composition comprising a dispersion of a solid fire retardant such as melamine, ammonium polyphosphate or guanidine carbonate in a liquid organic polyisocyanate which contains dispersed polymer particles.      The preferred content of solid fire retardant is from 10 to 100 % by weight and the preferred content of polymer particles is from 2 to 30 % by weight.      The compositions of the invention are suitable for the preparation of flexible and rigid polyurethane foams.
Patent CA-2027627-C (CA)
Inventor: SATO SUSUMU
IPC: C07J31/00
Filed: 1990-10-15
Granted: 2000-12-05
Abstract: A process for preparing 21-desoxyprednisolone 17-esters of formula (IV) is disclosed.    The process comprises reacting a prednisolone 17.alpha.,21-cyclic orthoester With an acid in a 40-60% lower alcohol solution to produce a prednisolone 17-ester, sulfonylating the prednisolone 17-ester into a prednisolone 17-ester 21-sulfonate, and reacting the sulfonate with an alkali metal iodide in methyl ethyl ketone in the presence of a lower fatty acid to produce the compound of formula (IV). The process ensures economical industrial production of high purity 21-desoxyprednisolone 17-esters, an excellent local anti-inflammatory medicine, in a high yield by simple procedures.
Patent CA-2029684-C (CA)
Inventor: HOLZER GERHARD
IPC: C03C27/12
Filed: 1990-11-09
Granted: 2002-04-16
Abstract: Un vitrage automobile feuilleté 1 chauffant électriquement possède une couc he mince transparente conductrice 8 qui joue le rôle de résistance chauffante. La feuille extérieure 2 de l'assemblage feuilleté est équipée sur sa surface tournée vers (intercalaire thermoplastique 4 d'une couche 6 en forme de cadre faite d'un émail opaque puis sur cette couche 6, d'amenées de courant 7 faites d'un éma il conducteur. La couche mince 8 est à son tour déposée sur le verre et sur les amenées de courant 7. On a placé au-dessus de la couche conductrice 8 au droit des amenées de courant 7 des bandes de clinquant 10. Leurs extrémités 11 sont équipées d'une gaine 12 faite d'un plastique résistant à la déchirur e.  Cette gaine 12 est collé sur le vitrage 2.
Patent CA-2033406-C (CA)
Title: Method and apparatus for stretching dough
Inventor: MORIKAWA MICHIO
IPC: A21D8/02
Filed: 1990-12-28
Granted: 1994-08-23
Abstract: A method for producing a dough sheet having a predetermined width and height from a dough mass of a non-uniform volume, comprising the steps of compressing the mass on a supplying conveyor, detecting any change of width of the compressed dough sheet, driving a delivery conveyor provided downstream of the supplying conveyor at a constant speed, while changing the speed of the supplying conveyor, and, further, stretching the dough sheet on the delivery conveyor, the supplying conveyor being driven based on the data of any detected change in the dough width.  Apparatuses are provided to carry out the above method.
Patent CA-2034620-C (CA)
Title: Charge device capable of lengthening a lifetime of a storage cell
Inventor: MURATA YUKIO
IPC: H02J7/00
Filed: 1991-01-21
Granted: 1996-01-23
Abstract: In a charge device having a storage cell terminal for connection to a storage cell to be charged, a trickle charge terminal for receiving a trickle charge voltage, and a boost charge terminal  connected to the  storage  cell terminal for receiving a boost charge voltage and including a constant current circuit for causing a constant current to flow from the trickle charge terminal to the storage cell terminal, a boost charge detector detects the boost charge voltage to produce a boost charge signal when the boost charge terminal is supplied with the boost charge voltage. An interrupting circuit interrupts the constant current when the boost charge detector circuit produces the boost charge signal.    The  constant  current  circuit  may  comprise  a transistor having a base electrode supplied with the trickle charge voltage to produce the constant current.   In this event, the interrupting circuit is a conductor connected between the boost charge detector and the base electrode of the transistor.
Patent CA-2036622-C (CA)
Title: Method and apparatus for beverage blending and proportioning
Inventor: GIBNEY MICHAEL W
IPC: G01F1/00
Filed: 1991-02-19
Granted: 2002-01-01
Abstract: The present invention relates to a method and apparatus for improving quality and increasing syrup yield within a typical beverage proportioning system (50). The invention controls the proportional blending as a function of the mass flow of the components input to the propor-tioner (50). The mass flow determination is made by Coriolis-type mass flow meters (54, 60) positioned within the feed lines (52, 58) for the water and syrup, respec-tively. From this mass flow determination an adjusted volumetric flow value for each component is determined by a master controller (68). The ratio of the calculated volumetric flow of the water to the syrup is used to determine a signal to control the proportional blending.      The controller (68) sends a signal to an actuator (70) which adjusts a valve (72) for the water flow into the blending portion of the proportioner (50). The controller (68) also determines the accuracy of the adjustment and the efficiency of the overall blending and proportioning system.
Patent CA-2038331-C (CA)
Title: Composition pour le traitement de l'epiderme par application topique et procede de preparation correspondant
Inventor: HANDJANI ROSE-MARIE
IPC: C09K23/00
Filed: 1991-03-15
Granted: 1998-10-27
Abstract: La présente invention concerne une composition pour le traitement cosmétique et/ou pharmaceutique des couches supérieures de l'épiderme par application topique sur la peau, caractérisée par le fait qu'elle comprend, dans un véhicule approprié, des nanoparticules polymériques biodégradables encapsulant au moins un actif sous forme d'huile et/ou au moins un actif contenu dans une huile-support non active ou une huile active, l'actif étant choisi parmi ceux ayant une action cosmétique et/ou pharmaceutique. L'invention concerne également un procédé pour la préparation de ladite composition.
Patent CA-2044111-C (CA)
Title: Tension loaded composite rupture disk
Inventor: REYNOLDS JOHN W
IPC: F16K17/16
Filed: 1991-06-07
Granted: 2001-08-07
Abstract: A composite rupture disk includes a slit-slot, tension loaded disk having a plurality of circumferentially spaced radial slits (eg. six in number) that terminate before reaching the disk center, thereby defining an uncut disk central portion which can be sized to at least partially influence the disk burst pressure. A radial strap, spot welded at each end attaches respectively at its end to the disk central portion and to the disk periphery, thereby preventing a downstream flow of the central portion upon rupture.
Patent CA-2048650-C (CA)
Title: Speakerphone for cellular telephones with howl prevention, detection, elimination and determination
Inventor: KROMENAKER SUSAN C
IPC: H04M1/60
Filed: 1991-01-10
Granted: 1994-11-01
Abstract: A unique speakerphone for cellular telephones includes in the transmit audio path between microphone 112 and transmitter 118, a transmitter mute switch which disconnects the audio path to the transmitter from the microphone 112, and a transmit gain amplifier that is controlled to lower the feedback the microphone can pickup from the speaker 110. In the feedback path to the radiotelephone receiver 120 from the cellular base station 122 and the land line telephone system 124, the speakerphone includes the controlled amplifier 106 which is fed into the speaker mute gate, and the speaker 110 to close the feedback loop. De-emphasized audio is sampled by the A/D 102 on both the microphone-to-transmitter side of the loop and the receiver-to-speaker side of the loop. The microcomputer 104 is able to detect and eliminate howl, as well as determine whether howl exists, from the A/D sampling.
Patent CA-2051679-C (CA)
Inventor: CALLINAN KEVIN M
IPC: B24D11/00
Filed: 1990-04-09
Granted: 1998-12-08
Abstract: Cette invention concerne un article abrasif souple destiné à nettoyer et à polir ou adoucir des objets, qui résiste à l'absorption de liquides et qui peut épouser la forme desdits objets. Il se compose d'une matrice souple et résistante en mousse de polychlorure de vinyle à alvéoles fermées dont les deux faces sont couvertes d'une couche textile de renfort et dont au moins une face porte des particules abrasives collées en place. La couche textile de renfort peut être noyée dans la mousse, les particules abrasives étant collées à l'une des deux faces de la matrice ou aux deux, ou elle peut être collée à l'une des faces de la matrice, les particules abrasives étant alors collées à l'autre face de celle-ci. De plus, l'article peut être monté sur une feuille rigide thermoformable pour créer des outils profilés.
Patent CA-2054013-C (CA)
Title: Hybrid power supply for converting an alternating input signal into a direct output signal
Inventor: CLAVEL ROBERT
IPC: H02M3/337
Filed: 1991-10-23
Granted: 2001-01-16
Abstract: The present invention relates to a hybrid power supply fox converting an alternating input signal fed to its input into a direct output signal produced at its output.      The hybrid power supply comprises a rectifier for converting the alternating input signal into a mono-alternation signal; a capacitor for smoothing the mono-alternation signal into a direct signal; a switching regulator stage coupled to the capacitor for generating a pre-regulated direct signal having a constant amplitude; a 1/X frequency modulating circuit for generating two switching pulsed signals of constant pulse width at a variable frequency according to a 1/X function in relation to the direct signal originating from the capacitor; and a linear regulator stage coupled to the switching regulator stage for regulating the pre-regulated direct signal, and for generating the direct output signal. A 1/X pulse with modulating circuit can also be provided for generating two variable pulse width signals synchronized with the switching pulsed signals for allowing adjustment of the output. Low power dissipation of the power supply elements allow to use an airtight shielding to eliminates interferences.
Patent CA-2055104-C (CA)
Title: Hockey puck
Inventor: KEATING MICHAEL D
IPC: A63B67/14
Filed: 1991-11-07
Granted: 1998-09-29
Abstract: An ice hockey puck has more uniform play during a period when provided with projections positioned circumferentially about the end surfaces which lift the puck from the surface to reduce the snow plowing effect, and the stability of the puck is maintained when the projections are dome-shaped to terminate in arcuate or flat ends.
Patent CA-2057190-C (CA)
Inventor: ABE TSUYOSHI
IPC: C22C38/26
Filed: 1991-12-06
Granted: 1996-04-16
Abstract: Disclosed is a high strength spring steel consisting of, in weight percentage, 0.50 to 0.70% C, 1.00 to 2.50% Si, 0.30 to 1.20% Mn, 0.80 to less than 1.20% Cr, 0.05 to 0.3% Mo, 0.05 to 0.30% V, 0.01 to 0.30% Nb, 0.005 to 0.100% Al and the balance being Fe and unavoidable impurities.  The steel of the present invention has a high hardness coupled with high toughness and is very useful especially for springs used in suspension devices or other various industrial machines.
Patent CA-2060190-C (CA)
Inventor: JAKOB HERBERT E
IPC: E01C23/06
Filed: 1990-08-06
Granted: 1999-11-09
Abstract: L'appareil décrit (10) sert au récyclage à froid sur place du revêtement d'asphalte d'une chaussée asphaltée. L'appareil (10) est motorisé et comprend un tambour de broyage cylindrique (32), qui est monté en un endroit médian le long de l'étendue longitudinale de l'appareil et qui sert à retirer une couche du revêtement d'asphalte et à le broyer en particules, au fur et à mesure que l'appareil (10) avance le long de la chaussée. Les particules sont amenées à monter (42) dans un tamis séparateur (45), qui est disposé à l'avant du tambour (32), puis les particules sont alors séparées en une première portion de particules relativement petites appropriées pour le récyclage et en une seconde portion de particules plus grosses. La première portion de particules est acheminée à l'extrémité arrière (14) de l'appareil (10) où elle est mélangée à un additif liquide approprié, et elle est ensuite déchargée sur la chaussée. Une bétonnière en aval transforme ensuite le matériau ainsi déchargé en un nouveau revêtement. La seconde portion des particules plus grosses est déchargée sur la chaussée en un endroit situé à l'avant du tambour de broyage (32). Le tambour de broyage (32) rencontre alors à nouveau la seconde portion de particules, pendant le mouvement vers l'avant de l'appareil (10), et le tambour (32) effectue un nouveau broyage de particules et permet leur recyclage à travers l'appareil (10).
Patent CA-2060832-C (CA)
Title: Flexible embedded disc screen
Inventor: MATULA CONRAD WALTER
IPC: B07B1/15
Filed: 1992-02-07
Granted: 1995-12-12
Abstract: A disc screen or like rotatable shaft assembly is disclosed having a non-metallic, substantially-cylindrical resilient spacer.  The spacer has a non-circular shaft receiving opening.  A plurality of screen discs are embedded in the spacer to accommodate limited tilting of the discs.          Annular metallic surrounds may be provided to cover exposed non-metallic surfaces of the spacer.
Patent CA-2063715-C (CA)
Inventor: ORDIDGE ROGER JOHN
IPC: G01R33/561
Filed: 1990-08-06
Granted: 1999-10-05
Abstract: On produit une image résonante magnétique d'un objet en soumettant l'objet à une sélection initiale des tranches, afin d'obtenir une région active, et en soumettant la région active à plusieurs impulsions HF de 180  et à des gradients x et y modulés en amplitude appropriés.
Patent CA-2068825-C (CA)
Title: Nitrogen-containing surface-active agents
Inventor: UHRIG HEINZ
IPC: C09D11/03
Filed: 1992-05-15
Granted: 2002-11-26
Abstract: The invention relates to mixtures of nitrogen-containing surface-active agents which are obtained by esterifica-tion of oxyalkylates based on modified or nonmodified naturally occurring resin acids or resin amines or resin alcohols derived therefrom with dicarboxylic acids or anhydrides thereof and subsequent reaction with alkylene-diamines or alkylenepolyamines. These nitrogen-containing surface-active agents are suitable as coupling auxili-aries, emulsifiers, dispersing agents, preparation agents for solids dispersions, corrosion protection and metal-working agents and as wetting agents and dyeing auxiliaries.
Patent CA-2074182-C (CA)
Inventor: AMBROSIUS DOROTHEA
IPC: C07K1/36
Filed: 1991-11-21
Granted: 1999-10-05
Abstract: The invention concerns a process for the reactivation of denatured protein, in which the protein is incubated with a solution of Tris base or/and a salt of Tris at a concentration of at least 400 mmol/l and at a pH at which the protein to be treated can take up its native conformation.
Patent CA-2093125-C (CA)
Title: Angiotensin ii antagonists
Inventor: DUDLEY DAVID THOMAS
IPC: A61K31/435
Filed: 1991-10-02
Granted: 2003-12-16
Abstract: The present invention relates to the use of 4,5,6,7-tetrahydro-1H-imidazo[4,5-c]pyridine-6-carboxylic acids and analogs thereof in antagonizing the binding of angiotensin 11 to AT2 receptors.