baber/WOPTO huggingface dataset:
Patent NO-177054-C (NO)
Inventor: HARGREAVES RODNEY BRIAN
IPC: C07D403/00
Filed: 1990-12-20
Abstract: This invention concerns novel aminopyrimidinium salts of the formula I:  <IMAGE>  in which R1 is alkyl, alkenyl, cycloalkyl, phenyl, phenylalkyl or cycloalkyl-alkyl; one of R2 and R6 is a basic group selected from amino, alkylamino, dialkylamino of up to eight carbon atoms, pyrrolidino, piperidino and morpholino; and the other of R2 and R6 is hydrogen, alkyl, alkenyl, alkoxyalkyl, phenyl, phenylalkyl, cycloalkyl or cycloalkyl-alkyl; or both of R2 and R6 are basic groups as mentioned above; and R5 is hydrogen, (1-4C)alkyl or (3-6C)alkenyl; or R2 is a basic group as mentioned above, and R5 and R6 together form alkylene or, together with the appendant carbon atoms of the pyrimidine ring, complete a benzene ring; R4 is hydrogen, alkyl, cycloalkyl-alkyl, alkenyl, alkynyl or phenylalkyl; or R4 is an optionally substitutued alkylene or alkenylene linked to the nitrogen atom of the group Q.A.N-, either of which linking groups may thereby completing a ring including two adjacent carbon atoms of Q, the carbon atoms of A and the adjacent nitrogen atom of the group -A.N-; A is a direct bond to the the group -N(R4)- or is alkylene or oxyalkylene; Q is a pyridyl, furyl, thienyl or phenyl moiety; and Y is a physiologically acceptable anion; but excluding a number of compounds specified hereinafter. The invention also includes certain closely related anhydro-base derivatives which, like the formula I compounds, possess beneficial effects on the cardiovascular system (and in particular beneficial effects modulated via the sino-atrial node). Also included are pharmaceutical compositions containing the formula I compound (or a related anhydro-base) as active ingredient, and processes for the manufacture of the various novel compounds.
Patent NO-178307-C (NO)
Inventor: BRULE DANIEL
IPC: B01J8/24
Filed: 1991-03-06
Abstract: The present invention relates to a process and a device for polymerizing alpha-olefins such as ethylene or propylene in a gas phase. The device comprises a gas phase polymerization reactor (5) into which a suspension of prepolymer particles in liquid saturated hydrocarbon(s) is continuously introduced. The prepolymer suspension is prepared in one or more prepolymerization vessels (14) and is continuouly passed to a post-treatment unit comprising a degassing means (10) wherein most of the dissolved unreacted olefinic monomer(s) is separated. Preferably, the post-treatment unit may comprise a particle separation means (11) for removing the finest and/or coarsest prepolymer particles from the suspension and/or a concentration means (11a) for concentrating the suspension. High activity catalyst can be used in the process with reduced amounts of prepolymer agglomerates. Prepolymer can be obtained with a constant quality and a desired size. <IMAGE>
Patent NO-176949-C (NO)
Inventor: ARVEDI GIOVANNI
IPC: B21B/
Filed: 1992-12-02
Abstract: PCT No. PCT/IT91/00057 Sec. 371 Date Jan. 8, 1993 Sec. 102(e) Date Jan. 8, 1993 PCT Filed Jul. 5, 1991 PCT Pub. No. WO92/00815 PCT Pub. Date Jan. 23, 1992.A process for obtaining steel strip coils with characteristics of a cold-rolled product, directly in a hot-rolling line, comprises subsequently to steps of casting and thickness reduction at a temperature of more than 1100 DEG  C. upon solidification, induction heating of the product and a further step of hot rolling, above point Ar3, a step of cooling and temperature control in a range of between 600 DEG  and 250 DEG  C., thus lower than said point Ar3, as well as one or more passes of cold-rolling in series, with final coiling of the obtained product. Also a preferred plant is described for putting into practice such a process.
Patent AU-740496-C (AU)
Title: Acid-resistant, thermoplastic resin composition containing magnesium hydroxide and its use
Inventor: NOSU TSUTOMU
IPC: C08K9/00
Filed: 1998-10-15
Granted: 2003-02-20
Abstract: A composition comprising:     (i) a thermoplastic resin; (ii) from 30 to 70% by weight, based on the resin composition, of magnesium hydroxide having a specific surface area of 20 m<2>/g or less and an average secondary particle diameter of 0.2 to 5.0  mu m, at least a part of the magnesium hydroxide being surface-treated with at least one surface-treating agent; and (iii) from 1 to 20% by weight, based on the resin composition, of a reaction type compatabilizing agent,     the or each surface-treating agent being selected from:     (a) a water-soluble silane-coupling agent;   (b) a phosphoric acid ester of the formula Ä2Ü, <CHEM> wherein R is an alkyl group or alkenyl group which has from 1 to 24 carbon atoms, n is an integer of from 0 to 6, m is 1 or 2, A is an alkylene group having from 2 to 4 carbon atoms and M is an alkali metal, an alkyl amine cation having from 1 to 4 carbon atoms or an alkanolamine cation of the formula Ä3Ü, Ä(R')3-rN-(B-OH)rÜ<+> wherein R' is a hydrogen atom or an alkyl group having from 1 to 3 carbon atoms, B is an alkylene group having from 2 to 4 carbon atoms and r is an integer of from 1 to 3; and (c) a higher fatty acid and/or an alkali metal salt thereof.
Patent CA-2001864-C (CA)
Inventor: TOIDA SHOUJI
IPC: A47J41/00
Filed: 1989-10-31
Granted: 1996-12-24
Abstract: A plug body having an inner cylindrical member with short engagement receivers and long engagement receivers together with steps, an operating button with short engaging elements and long engaging elements that are respectively received by the short engagement receivers and long engagement receivers, a rotatable slider provided with protrusions, a valve body with a valve stem which is inserted into the rotatable slider and the inner cylindrical member, a spring that preloads the rotatable slider upwards so that the long and short engaging elements of the operating button alternatively make contact with the protrusions, causing the rotatable slider to rotate with a depression of the operating button.  The liquid passage is opened when the long engaging elements of the operating button make contact with the protrusions of the rotatable slider.  In this case, the operating button protrudes upward above the upper lid of the liquid container.  In contrast, the liquid passage is closed when the short engaging elements of the operating button make contact with the protrusions of the rotatable slider, and in this case, the operating button is hidden below the upper lid.  Thus, the valve open state is more easily checked visually.
Patent CA-2009737-C (CA)
Title: Bucket wheel with overhead discharge
Inventor: BRYAN JOHN F
IPC: E02F3/24
Filed: 1990-02-09
Granted: 1997-09-16
Abstract: An excavating bucket wheel has a plurality of radially outwardly open bucket chambers disposed in a circular array. During rotation of the bucket wheel each chamber cyclically assumes a material receiving position and a material dumping position.  Each bucket chamber is defined by a cutting plate supported at the wheel periphery and having a trailing edge as viewed in the direction of wheel rotation, two axially spaced, parallel side walls and a rear wall extending axially between the side walls.  An outer edge of the rear wall is situated adjacent the cutting plate.  Each bucket chamber is further defined by a bottom wall extending axially between the side walls and being supported for pivotal motion about an axis oriented parallel to the rotary axis of the bucket wheel and situated adjacent the outer wheel periphery.  The bottom wall has a first pivotal position for receiving material and a second pivotal position for dumping material. There is further provided a first actuating device for pivoting the bottom wall.  Each rear wall is, at an inner edge thereof, supported for pivotal motion about an axis oriented parallel with the rotary axis of the bucket wheel. A second actuating device urges each rear wall into contact with the outer terminal edge of a respective bottom wall.
Patent CA-2012556-C (CA)
Inventor: SCHNABEL JUERGEN
IPC: H03K3/023
Filed: 1990-03-20
Granted: 1996-01-16
Abstract: A high-speed, temperature- and parameter-stable, controllable CMOS oscillator is suitable for low to very high frequencies, e.g., clearly above 100 MHz.  The oscillator includes a two-stage differential amplifier (D) and two controlled current sources (I1, I2) which are interconnected via a frequency-determining capacitor (C).  The two current sources (I1, I2) are connected to the inputs (IN1, IN2) of the differential amplifier (D) through a first resistor (R1) and a second resistor (R2), respectively.  By means of a first switching unit (S1) connected to the inputs of the differential amplifier (D), a first current path is completed in response to the voltage drop across the first resistor (R1) to charge the capacitor to a first state, and by means of a second switching unit (S2), a second current path is completed in response to the voltage drop across the second resistor (R2) to discharge the capacitor (C) to a second state.
Patent CA-2013998-C (CA)
Title: Method of producing automotive body
Inventor: CAMPBELL JAMES R
IPC: B05D7/14
Filed: 1990-05-07
Granted: 1993-11-02
Abstract: METHOD OF PRODUCING AUTOMOTIVE BODY                  ABSTRACT OF THE DISCLOSURE     A method is disclosed in which a semi-finished automotive body is passed through an oven placed immediately after a metal finishing stage, to cure hot melt strip and solder used in preceding stages, before the body is subjected to the application of liquid substances such as phosphate rinse or E-coat. The method improves the quality of finish by avoiding the release of tiny particles into the bath of the paint application device and from there to the surface of the body being finished.
Patent CA-2014928-C (CA)
Inventor: PEDAIN JOSEF
IPC: C09D135/00
Filed: 1990-04-19
Granted: 2000-03-28
Abstract: The present invention relates to moisture-hardening binder compositions containing A) 30 to 99 parts by weight of a component based on at least one copolymer prepared from olefinically unsaturated compounds having a weight average molecular weight of about 1,500 to 75,000 and containing chemically incorporated groups which are reactive with amino groups in an addition reaction and B) 1 to 70 parts by weight of a polyamine component based on at least one organic polyamine containing blocked amino groups, characterized in that the copolymers of component A) contain both intramolecular carboxylic anhydride groups and also carbonate groups in chemically bound form, the anhydride equivalent weight of the copolymers being 327 to 9,800 and the carbonate equivalent weight of the copolymers being 465 to 18,600, component A) containing a total of 0.2 to 8 anhydride and carbonate groups for each blocked amino group present in component B).
Patent CA-2018137-C (CA)
Title: L-carnitine magnesium citrate
Inventor: SCHOLL THOMAS
IPC: A23L33/15
Filed: 1990-06-01
Granted: 2000-01-11
Abstract: The novel compound L-carnitine magnesium citrate is disclosed, together with a process for its production, by reaction of a magnesium compound, citric acid and L-carnitine. The product is useful as a combination preparation in sports nutrition or as a pharmacologically active ingredient.
Patent CA-2022010-C (CA)
Title: Passive mechanical damping system for a truck
Inventor: LONDT EDWARD E
IPC: B62D33/06
Filed: 1990-07-26
Granted: 2000-04-11
Abstract: A passive mechanical damping system, particularly for the suspension of a cab from a truck frame, provides a minimal level of damping force to impede the free movement of a truck cab about its nominal height and also provides higher levels, progressively or in discrete steps, of damping as the movement of the cab exceeds preset limits of displacement defined by a lost motion connection to provide maximum vibration isolation while providing additional damping to control cab movement when the preset displacement limits are exceeded. The system provides a low rate viscous damper continuously connected between the cab and the truck frame and a high rate viscous damper connected therebetween through a lost motion connection.
Patent CA-2027983-C (CA)
Title: Adjustable speed ac drive system control for operation in pulse width modulation and quasi-square wave modes
Inventor: KING ROBERT DEAN
IPC: H02M7/5387
Filed: 1990-10-18
Granted: 2000-01-25
Abstract: A polyphase AC motor drive system comprises an electric power inverter and control means which enables operation in, and allows smooth transition between, a current controlled PWM mode and a quasi-square wave mode of operation. At low motor speeds, the system operates in PWM mode. At higher speeds, above the corner point speed of the motor, the system operates in a quasi-square wave mode.      Smooth transitions between modes of operation are controlled by a microcomputer which counts the number of current chops made by a switching device in a preselected phase leg of the inverter over a time interval that varies with the desired fundamental period of the motor current. As speed increases and approaches the corner point, the number of chops decreases below a first predetermined number, and the system transitions from PWM to quasi-square wave mode. As speed decreases, the number of chops increases above a second predetermined number (larger than the first), and the system transitions back to PWM mode. A motor speed command is limited by an adjustable clamp circuit, depending upon the DC link voltage, resulting in a robust drive that is not affected by utility brownouts or line transients.
Patent CA-2028248-C (CA)
Inventor: KUDELSKI ANDRE
IPC: H04N7/167
Filed: 1990-02-21
Granted: 2001-02-13
Abstract: Système de télévision à péage utilisant une carte à mémoire associée à un décodeur, caractérisé en ce que, du côté de l'émission, un générateur de nombres (10) délivre un code aléatoire (XA) qui est envoyé à l'entrée d'une carte mère (11) qui chiffre ce code en utilisant une clé prédéterminée (100), le code ainsi chiffré est diffusé avec le signal vidéo, un premier dispositif (17) reçoit en entrées d'une part le code aléatoire (XA) et d'autre part le code chiffré (XB) par la carte mère (11) et effectue une combinaison numérique déterminée de ces deux codes, cette combinaison constituant le mot d'initialisation d'un générateur pseudo-aléatoire (12) destiné à fournir une table de codes destinée à effectuer le chiffrage du signal vidéo et, du côté de la réception, le code chiffré (XB) reçu est déchiffré par une carte de client (13), un second dispositif (18) reçoit en entrées d'une part le code chiffré (XB) et d'autre part le code déchiffré (XA) par la carte de client (13) et effectue une combinaison numérique de ces deux codes identique à celle du premier dispositif (17), le résultat de cette combinaison constituant le mot d'initialisation d'un autre générateur pseudo-aléatoire (14) fournissant une table de codes identique à celle de l'émission et destinée à effectuer le débrouillage du signal vidéo.
Patent CA-2028357-C (CA)
Title: Interconnecting paving stones
Inventor: SCHEIWILLER ROLF
IPC: E01C5/00
Filed: 1990-10-23
Granted: 1999-12-07
Abstract: The interconnecting paving stones are provided on at least two opposing sides with outwardly tapering teeth. On one side of said stones, the front sides of said teeth are provided with indentation keys, and on the other side, with indentation grooves. Moreover, the flanks of one row of teeth comprise spacing bosses.      An interconnecting paving stone can have the configuration of a rectangular stone and can comprise three teeth on each of its longitudinal sides and either a projection or a recess on the narrow sides.      The interconnecting paving stones can be used either for the construction of bicycle lanes with increased smoothness, in which case said teeth engage with each other, or as interconnecting lawn stones, where respective teeth adjoin and interlock by means of said indentation keys and grooves.
Patent CA-2029276-C (CA)
Title: Rail pads
Inventor: BROWN TREVOR PAUL
IPC: E01B9/68
Filed: 1990-11-05
Granted: 1998-12-22
Abstract: A pad, suitable for spacing the bottom of a railway rail from a rail foundation on which the rail stands, comprises a plate-like rail-supporting portion (1) and softer, resiliently-deformable, sealing means (3), which sealing means (3) are bonded to the rail-supporting portion (1) at a peripheral region thereof and are such that, when the pad is placed on a rail foundation and a rail is placed on the rail-supporting portion (1) of the pad, those means (3) deform under the weight of the rail so as to form a substantially watertight seal around the said peripheral region of the rail-supporting portion (1).
Patent CA-2031891-C (CA)
Inventor: FISCHELL ROBERT E
IPC: A61F2/82
Filed: 1990-12-10
Granted: 2000-10-24
Abstract: It is well known that radiation therapy can reduce the proliferation of rapidly growing cancer cells in a malignant tumor. The present invention utilizes a radioisotope which is integral to an arterial stent which can irradiate the tissue in close proximity to the implantation site of the stent in order to reduce the rapid tissue growth caused by arterial wall trauma resulting from balloon angloplasty or atherectomy.
Patent CA-2035323-C (CA)
Inventor: PERIANA ROY A
IPC: C07C63/333
Filed: 1991-01-30
Granted: 1998-12-22
Abstract: Divulgation d'une méthode pour obtenir des acides aromatiques dicarboxyliques à orientation para, dans laquelle un composé aromatique portant un groupe alkyle tertiaire est oxydé avec de l'oxygène moléculaire, en présence d'une composition catalytique renfermant un sel de cobalt, une quantité mineure d'un sel de manganèse et une source de chlorure en présence d'un solvant.
Patent CA-2035902-C (CA)
Title: Synthetic resin bottle-shaped container
Inventor: OTA AKIHO
IPC: B65D25/20
Filed: 1990-07-06
Granted: 1999-01-12
Abstract: This invention relates to a synthetic resin bottle-shaped container comprising a bottle-shaped main body and a pedestal body for providing stable self-standing capability to the main body.  The bottle-shaped main body is made of a biaxially-oriented blow-molded synthetic resin material.  A center portion of a bottom portion of the main body is depressed inwardly and a curved outer peripheral surface area of the bottom portion is formed to a wide press-fit recess to be engaged with a pedestal body.  The pedestal body is a short cylindrical portion with an outer diameter substantially equal to that of the bottle portion of the main body, and comprises an upper half portion for engaging with the press-fit recess of the bottom portion, and a lower half portion for accommodating the bottom portion, so that the lowest end of the pedestal body is positioned below the lowest end of the bottom portion.  The pedestal body is easily and exactly engaged with the main body, and also provides a high protection capability against external impact to the bottom portion of the main body.
Patent CA-2036748-C (CA)
Title: Appliance for preventing water from leaking through joint
Inventor: TAKASAKI KAZUHIRO
IPC: E04B1/68
Filed: 1991-02-20
Granted: 2001-12-04
Abstract: A seal, constituted by a water-expansible portion and a water-unexpansible portion, prevents water from leaking in a construction joint. The expansible portion surrounds the unexpansible portion everywhere except on a side of the unexpansible portion which is adhered to one of two mutually facing surfaces of the construction joint. The unexpansible portion is sized, relative to the overall size of the seal, particularly in the width dimension, so that it adheres with sufficient strength to one of the mutually facing surfaces of the construc-tion joint so as not to become pulled off in use. An effective seal thus is maintained even in a swollen state.
Patent CA-2037202-C (CA)
Title: Universal excavator with auxiliary tool supply means and bucket scraper
Inventor: ZHONG PEI-QIAN
IPC: E02F3/96
Filed: 1991-02-27
Granted: 1995-09-05
Abstract: A mini-size universal hydraulic excavator which  is  capable  of  performing  independently many operating  processes,   such  as  digging,   pushing, grabbing,    drilling    and    chipping,    comprises essentially  three main  sections,  namely  a  chassis carrying traveling devices  and pivotally connected with an earth-moving means, a complete swivel upper carriage   provided  with  a  power  generator  and  a driver's  seat,  and an excavating arm comprising a boom,  a bucket arm,  a bucket,  etc.   The hydraulic chipper can be used by being connected to the main machine  without  the  necessity  of  removal  of  the bucket and the earth-moving means,  so that chipping and site clearing can be carried on simultaneously solely  by  one  single  machine.    A  backhoe  bucket carrying  a  scraper  employs  a  multi-bar  linkage mechanism comprised of a bucket body,  a scraper,  a bucket  arm,  etc.,  so  that  the  bucket  can  have sufficient bucket capacity in a relatively greater excavating revolving angle range.   The specially-set accessory operating equipment oil lines are used to drive all the hydraulic operation equipment except the bucket.
Patent CA-2041392-C (CA)
Inventor: YOU CHIN-SAN
IPC: A63B59/00
Filed: 1991-04-29
Granted: 1996-02-27
Abstract: A sports racket frame comprises thereon an outer envelope made of a fiber-reinforced composite. Located at a predetermined area of the outer envelope encasing the handle portion are fibrous cleavages, in which a plurality of strength-reinforcing and shock-absorbing inlay pieces are embedded so as to reduce effectively the shock wave originating from the ball-hitting surface to a minimum and to give the racket frame an added elasticity and rigidity.
Patent CA-2041919-C (CA)
Title: Non-tacky hot melt adhesive containing package
Inventor: THALER MARTIN D
IPC: B29C33/58
Filed: 1991-05-07
Granted: 1995-12-12
Abstract: A tackless hot melt adhesive package is provided by using a hydrogenated castor oil coating material and a low pressure, melt blow application technique.
Patent CA-2042736-C (CA)
Title: Bleach activation
Inventor: FAVRE THOMAS LOUIS F
IPC: C07D341/00
Filed: 1991-05-16
Granted: 1998-09-29
Abstract: Novel bleach and oxidation catalysts, a method of bleaching substrates using these catalysts and bleaching (detergent) compositions containing the catalysts are reported. The catalysts are manganese complexes of formula:      [LnTmmXp]2Yq wherein Tm is manganese or iron or mixtures thereof, which can be in the II, III, IV or V oxidation state or mixtures thereof; n and m are independent integers from 1-4; X represents a co-ordination or bridging species; p is an integer from 0-12; Y is a counter-ion, the type of which is dependent upon the charge z of the complex which can be positive, zero or negative; q = z/[charge Y]; and L is a ligand being a macrocyclic organic molecule.
Patent CA-2052248-C (CA)
Title: Constant current circuit and an oscillating circuit controlled by the same
Inventor: SUWADA MAKOTO
IPC: H03K4/502
Filed: 1991-09-25
Granted: 1994-07-26
Abstract: ABSTRACT            Disclosed are a constant current circuit which pro-vides an output current I2 which varies with changes of power source voltage Vcc, and an oscillating circuit whose oscillation frequency varies with changes of I2 in the constant current circuit.  The constant current circuit comprises bipolar transis-tors coupled to form a differential amplifier, wherein one of the transistors is supplied with a reference voltage and another is supplied with a divided voltage of Vcc, and a resistor connecting the emitters of the transistors is provided for controlling the slope of the Vcc-I2 characteristic curve of the constant current circuit.  The oscillating circuit comprises a capacitor charged with I2 and a switching means for discharging the capacitor when it is closed and a voltage detecting means operating to close or open the switching means according to the voltage detected at an end of the capacitor.  Thus, the switching means cycles on and off to generate pulses with a frequency depending on I2 and hence depending on Vcc.  Methods for controlling the frequency range of the oscillating circuit and the rise time to fall time ratio of the pulses by introducing additional constant current supplying sources are also disclosed.