baber/WOPTO huggingface dataset:
Patent CA-1313919-C (CA)
Inventor: WALLER DUNCAN E
IPC: A61K6/884
Filed: 1988-02-24
Granted: 1993-02-23
Abstract: ABSTRACT OF THE DISCLOSURE   A visible light activated cavity liner which provides an available source of leachable calcium and fluoride to the base of a tooth cavity, said composition comprising a photopolymerizable matrix material, a photo initiator, a reducing agent, a synthetic hydroxyapatite filler and a powdered glass ionomer filler.
Patent CA-1289069-C (CA)
Title: Test kit, extraction device and method for the determination of streptococcus a antigen
Inventor: SNYDER BRIAN A
IPC: C12Q1/28
Filed: 1988-02-25
Granted: 1991-09-17
Abstract: TEST KIT, EXTRACTION DEVICE AND METHOD FOR THE    DETERMINATION OF STREPTOCOCCUS A ANTIGEN      Abstract of the Disclosure A test kit useful for the determination of Streptococcus A antigen comprises: (1) an immuno-reactive reagent comprising either Streptococcus A antigen or antibodies attached to water-insoluble particles, (ii) a substrate having thereon a dried, binder-free coating of a first extraction reagent, (iii) an aqueous solution of a second extraction reagent, and (iv) a neutralizing solution.  Both extraction reagents combine to provide nitrous Acid. In addition, an extraction device includes a water-insoluble container having affixed therein the first extraction reagent and an applicator means for col-lecting and depositing a biological specimen within the container.  The extraction device and test kit are useful to the determination of Streptococcus A antigen in a biological specimen.
Patent CA-1280640-C (CA)
Title: Variable flow rate system for hydrokinetic amplifier
Inventor: NICODEMUS CARL D
IPC: F04F5/48
Filed: 1988-03-10
Granted: 1991-02-26
Abstract: TITLE      VARIABLE FLOW RATE SYSTEM FOR HYDROKINETIC AMPLIFIER ABSTRACT          A  hydrokinetic  amplifier 10 having a primary liquid input formed into a primary liquid jet  surrounded by  a  motivating vapor that transfers vapor momentum to the primary liquid jet and accelerates the primary  liquid jet  through a minimum cross-sectional area 20 upstream of a diffuser is provided with a secondary inlet that  admits a  secondary fluid to merge with the primary liquid jet in a diffuser 16 beyond the minimum  cross-sectional  area. Without  varying the primary inflows of liquid and vapor, the secondary flow varies inversely with the  fluid  flow resistance  of  the output load; and this can be used to vary the volume,  pressure,  and  temperature  of  the output.   The  product of the pressure and volume of the combined flows can exceed the product of the pressure  and volume  of  the  primary  flow, and change in the load resistance can be used to turn the secondary flow on  and off for adding a material to the primary flow.
Patent CA-1310227-C (CA)
Title: Thermal drop-on-demand ink jet print head
Inventor: ELDRIDGE JEROME M
IPC: B41J2/14
Filed: 1988-04-14
Granted: 1992-11-17
Abstract: THERMAL DROP-ON-DEMAND INK JET PRINT HEAD                  Abstract of the Disclosure A thermal drop-on-demand ink jet print head in which an array of heating means is provided on one surface of a substrate member.  A common electrode provides electrical contact to the heating means, and an array of data electrodes provides electrical contact to individual ones of the heating means.  An array of feed through conductors is provided which pass through to the opposite surface of the substrate member to provide electrical contact between one of the data electrodes and one of an array of conductors leading to spaced solder pads on the opposite surface of the substrate member.  A nozzle plate is mounted adjacent to the substrate member with a nozzle adjacent to each of the heating means so that, upon connection of an electrical signal to one of the solder pads, the corresponding heating means is energized and a drop of ink is ejected from the adjacent nozzle.  Various embodiments are described in which multiplexing techniques are used to achieve a reduction in electrical connections and electronic drivers.
Patent CA-1303007-C (CA)
Title: Valve seats
Inventor: NICHOLSON TERENCE P
IPC: F16K1/226
Filed: 1988-06-14
Granted: 1992-06-09
Abstract: ABSTRACT     A metal valve seat for a butterfly valve or ball valve and has the form of an apertured disc with a radially outward part by which it is securable to a valve body and a radially inward dished part      which projects laterally around the disc aperture.  The valve seat is characterised in that the disc part      is formed circumferentially with a plurality of web-connected fingers which have a radially inward surface of varying generative radius.  The invention also consists in a butterfly valve or a ball valve incorporating one or a pair of such metal valve seats.
Patent CA-1316439-C (CA)
Title: Method for treating copper-based alloys and articles produced therefrom
Inventor: PLEWES JOHN T
IPC: C22F1/08
Filed: 1988-06-29
Granted: 1993-04-20
Abstract: METHOD FOR TREATING COPPER-BASED ALLOYS AND ARTICLES PRODUCED THEREFROM            Abstract Copper based alloys, e.g. Cu9Ni6Sn are processed by annealing followed by a high level of cold work area reduction then a recrystallization step which is followed by a low level of cold work prior to spinodal aging. The resultant material is isotropically formable while maintaining high yield strength.
Patent CA-1302124-C (CA)
Title: Fe-base build-up alloy excellent in resistance to corrosion and wear
Inventor: YABUKI RITSUE
IPC: B23K35/30
Filed: 1988-07-15
Granted: 1992-06-02
Abstract: Fe-BASE BUILD-UP ALLOY EXCELLENT IN RESISTANCE TO CORROSION AND WEAR            ABSTRACT        An   Fe-base   build-up   alloy   excellent in   resistance   to   corrosion   and   wear   is disclosed.    This   alloy   comprises   in   weight percent:      C    : from  0.005 t o   1.6  %. Mn   : from  4     t o   28   %, C r  : from  12    t o   36   %. Mo   : from  0.01  t o 9   %. H f  : from  0.005 t o   15   %. N    : from  0.01  t o   0.9  %, and optionally contained:      Si : from 0        t o    5 %, Ni : from 0        t o 30 %, and one or both of:     Nb and W : f r om  0   to   6%. and the balance being Fe and incidental impur i t i es.
Patent CA-1311530-C (CA)
Title: Tactile stimulator
Inventor: FRAZIER RICHARD K
IPC: A61H7/00
Filed: 1988-09-14
Granted: 1992-12-15
Abstract: ABSTRACT OF THE DISCLOSURE        A tactile stimulator for causing information from a remote input source either manually or automatically to be transmitted or transposed through a converter such as a trans-ducer or computer to an output driver to provide tactile stim-ulation to a user.  In an preferred embodiment, a prepro-grammed source of music is used to create patterns of movement and sound to create a touching and moving sensation on the body of a user to enhance the feel of the music by the user.          In a manual mode, a keyboard is connected through a computer or multiplexer switching unit to permit the user to create a pattern of pleasurable or therapeutic stimulation, or to create a recorded program for later and repeated uses.  In an alternative embodiment, a preprogrammed, therapeutic regime is provided to massage a user.  Alternative uses of the invention are also disclosed.
Patent CA-1319849-C (CA)
Inventor: GRAF ERNST
IPC: A23L5/20
Filed: 1988-09-14
Granted: 1993-07-06
Abstract: ABSTRACT OF THE DISCLOSURE         An oxygen scavenging composition for use with foods, cosmetics, and pharmaceuticals comprising a combination of a metal that can exist in two redox states at ambient conditions, and a radical oxygen scavenger.  The oxygen scavenging system is also effective in inhibiting the growth of yeasts, molds, and most aerobic bacteria.
Patent CA-1330676-C (CA)
Inventor: CABESTANY JEAN
IPC: C09D11/10
Filed: 1988-12-13
Granted: 1994-07-12
Abstract: ABSTRACT OF THE DISCLOSURE         Water in oil dispersions of hydrophilic polymers based on acrylic acid partially or totally converted into the salt form with ammonia are disclosed for use in formulating printing pastes for colour printing.  The water in oil dispersions are characterized by 65 to 75% of an aqueous dispersed phase, 3 to 7% of an emulsifying system having overall an HLB value greater than 7, and the remainder (up to 100%) being an oil phase.  Approximately 35 to 50% of the aqueous dispersed phase is constituted by a hydrophilic polymer having a molecular weight greater than 3,000,000 formed, in molar proportions, from 0 to 50% acrylamide, 0.008 to 0.1% bisacrylamidoacetic acid partially or totally converted into the salt form with ammonia, and the remainder acrylic acid, of which 65 to 100% is in the form of ammonium acrylate.  The emulsifying system constituted by a mixture of at least three surface active agents of which more than 50% by weight is contributed by at least one surface active agent having an HLB between 3 and 5, and the complement to 100% being contributed by at least two surface active agents individually having an HLB between 11 and 14.  The oil phase constituted by one or a plurality of hydrocarbons which are liquid at ambient temperature, containing less than 20% by weight of aromatic hydrocarbons and having simultaneously a density, determined at 20°C, greater than 0.8 g/cm3, a kinematic viscosity, determined at 20°C, greater than 10 mm2/s and a boiling point above 250°C.
Patent CA-1312868-C (CA)
Title: Pyridine-n-oxides and fungicides containing them
Inventor: ZIPPERER BERNHARD
IPC: C07D213/89
Filed: 1988-12-21
Granted: 1993-01-19
Abstract: O.Z. 0050/39665 ABSTRACT OF THE DISCLOSURE: Substituted pyridine-N-oxides of the formula                 (I), where R1 is alkyl and R2 is phenyl or substituted phenyl, salts thereof which are physiologically tolerated by plants, and fungicides containing them.
Patent CA-1294002-C (CA)
Title: Transmitter having pll circuit
Inventor: UEDA HIDEKI
IPC: C10M105/24
Filed: 1989-01-19
Granted: 1992-01-07
Abstract: ABSTRACT OF THE DISCLOSURE       A transmitter includes a phase-locked loop (PLL) circuit whose output is frequency modulated with a modulation signal.  The modulated signal is amplified by an amplifier which is  turned on only during  a signal transmission of the transmitter.   At a time when the amplifier is turned on, the output frequency of PLL circuit fluctuates.  To depress this frequency fluctuation,  the  transmitter includes  a  frequency fluctuation  depressing  (FFD)  circuit.   Upon  the turning-on of the amplifier,  FFD circuit applies a voltage change to the modulation signal so that the frequency fluctuation is depressed.
Patent CA-1305737-C (CA)
Title: Support assembly for a dragline bucket
Inventor: SWICK CARL D
IPC: E02F3/46
Filed: 1989-02-03
Granted: 1992-07-28
Abstract: SUPPORT ASSEMBLY FOR A DRAGLINE BUCKET           Abstract A support assembly for a drag bucket includes lift lines and pull  lines,  each secured to a respective link plate pivotably secured to opposite sides of the bucket. Stops on the bucket side walls limit pivoting of the plates, whereby the bucket can selectively be maintained upright or in a dumping position by control of the lines.
Patent CA-1330601-C (CA)
Inventor: SUDA TOSHIKAZU
IPC: C23C16/455
Filed: 1989-02-10
Granted: 1994-07-05
Abstract: APPARATUS FOR SEMICONDUCTOR PROCESS  INCLUDING PHOTO-EXCITATION PROCESS                             ABSTRACT OF THE DISCLOSURE An apparatus for use in semiconductor fabrication that includes use of a photo-excitation process is provided with a revolving gas chamber at the upper or side part of a gas reaction chamber, an internal or external light source, a partition having a centrally located circular opening provided between the revolving gas chamber and the gas reaction chamber, or the revolving gas chamber is made smaller than the gas reaction chamber. The revolving gas chamber has gas inlets oriented at an angle with respect to the center of the revolving gas chamber to produce a gas flow in one direction to form a laminar flow of gas that revolves and thereby prevents process reactions from contaminating the light source or light transmitting window.
Patent CA-1310007-C (CA)
Title: Hoist winding system
Inventor: KAWABATA YOSHIHIKO
IPC: H02P7/292
Filed: 1989-02-22
Granted: 1992-11-10
Abstract: ABSTRACT OF THE DISCLOSURE      A shaft winding or winch system for raising and lowering a load attached to one end of a rope.  The system includes a brake unit for braking a drum, a detection unit for detecting the length of the rope, and a control unit for controlling the brake unit according to the detected extended length of the rope and the torque generated by the drive unit.
Patent CA-1302482-C (CA)
Title: Short-circuit protection device for an electrical machine fed by a pulse-controlled a.c. converter
Inventor: NEROWSKI GEORG
IPC: H02H7/08
Filed: 1989-03-16
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE     A short-circuit protective device for a motor-driven and generator-driven electrical machine fed by a pulse controlled a.c. converter has reverse-parallel circuitry that is switching dependent on a monitoring device.  The monitoring device detects short circuits and is provided in a d.c. current supply line.  Using the reverse-parallel circuitry and the monitor, an intermediate circuit capacitor of the pulse-controlled a.c. converter feeding the machine is isolated from the short circuit location.
Patent CA-1315650-C (CA)
Title: Chemical treatment of aluminum cathodes in zinc electrowinning
Inventor: HOULACHI GEORGE
IPC: C23G1/12
Filed: 1989-05-01
Granted: 1993-04-06
Abstract: Abstract of the Disclosure: A chemical treatment of an aluminum cathode used in zinc electrowinning consists of contacting the affected areas of the aluminum cathode or the entire surface of the cathode with a dilute hydrochloric acid aqueous solution.
Patent CA-1324390-C (CA)
Inventor: WYSS HEINZ
IPC: C07C239/20
Filed: 1989-05-05
Granted: 1993-11-16
Abstract: ABSTRACT OF THE DISCLOSURE           A new method for the production of O-substituted hydroxylamines having the formula NH2-O-R is disclosed, wherein R = C1-C6  alkyl or alkenyl, straight-chain or branched, or benzyl.   Hydroxylamine-O-sulfonic acid is reacted with alkali alkoxide in the presence of a polar aprotic solvent.   This method provides the advantage of increased yield, while minimizing the dangers associated with the presence of explosive materials.
Patent CA-1317685-C (CA)
Title: High speed method for data transfer
Inventor: SHERMAN ARTHUR M
IPC: G09G5/39
Filed: 1989-06-08
Granted: 1993-05-11
Abstract: ABSTRACT    A method is described for transferring data units from a serially organized memory to a bit planar organized memory.  The method first selects a plurality of data units  from  the  serially  organized  memory.   A  bit pattern from the selected data units is then captured, which- bit pattern includes only bits to be stored in a subset  of  the  storage  planes of  the  bit  planar organized memory.   The bit  pattern  is processed  to isolate  from  it,  subsidiary  bit  patterns,  one  bit pattern  for  each  storage  plane  in  the  bit  planar memory.  Each subsidiary bit pattern is then translated so that its bit sequence is properly oriented and is then stored in a plane of the bit planar organized memory.  In a preferred embodiment of the invention, the translations take place as the result of a table look-up step.
Patent CA-1320610-C (CA)
Title: Method for manufacturing polyamide resin
Inventor: IMAI YOSHIO
IPC: C08G69/28
Filed: 1989-06-20
Granted: 1993-07-20
Abstract: Abstract of the Disclosure The invention is concerned with a method for manufaturing a polyamide resin having double bonds in its main chain and comprising repeated units of the formula (I):     [-Ar1-CR1=CR2-CO-NR3-R4-NR3-CO-CR2=CR1-]   (I) wherein Ar1  is a bivalent aromatic radical, R1, R2 and R3, identical or different,  each represent a hydrogen atom or a univalent aromatic or  aliphatic radical  and R4   is a bivalent  aromatic  or  aliphatic  radical,   the polyamide resin having a reduced viscosity (?sp/c) of 0.1 - 5.0 dl/g at a concentration of 0.5 g/dl in N,N-dimethylacetamide at 30°C.  The method according to the invention is charac-terized in that a bis-alkenoic amide having the general formula (II):          CHR1=CR2-CO-NR3-R4-NR3-CO-CR2=CHR1         (II) wherein R1,   R2  and R3,   identical or different,   each represent  a  hydrogen  atom  or  a  univalent  aromatic  or aliphatic  radical  and  R4  is  a  bivalent  aromatic  or aliphatic radical, is reacted with an aromatic dihalide of the general formula (III):      X-Ar1-X             (III) wherein Ar1  is a bivalent aromatic radical and X is a halogen atom,  in the presence of a palladium catalyst and a base in an organic solvent.
Patent CA-1321789-C (CA)
Title: Process for preparing alkylglucoside compounds from oligo- and/or polysaccharides
Inventor: WUEST WILLI
IPC: C07H15/04
Filed: 1989-08-11
Granted: 1993-08-31
Abstract: ABSTRACT      Surface active alkylglucosides are prepared in a 2-step process from starch or starch degradation products such as polyglucose or glucose syrup, the first step consisting of reaction with a short chain alcohol, particularly butanol, while the second step comprises transacetalization with the longer chain C8-22, more particularly C12-18, alcohol, with fatty alcohols of natural origin preferably being used.
Patent CA-1328065-C (CA)
Inventor: BOSKAMP JELLES V
IPC: C11D3/37
Filed: 1989-08-31
Granted: 1994-03-29
Abstract: ABSTRACT      A detergent composition having improved antiredeposition properties on polyester/cotton fabrics contains a polyalkylene oxide/vinyl acetate graft copolymer, and includes in its surfactant system one or more nonionic surfactants of low cloud point.
Patent CA-1331596-C (CA)
Inventor: HUBERT SUSAN M
IPC: B64G1/42
Filed: 1989-09-28
Granted: 1994-08-23
Abstract: SPACECRAFT WITH INCREASED STATIONKEEPING FUEL LOAD                 ABSTRACT OF THE DISCLOSURE           A spacecraft includes bipropellant and monopropellant engines or thrusters.  The oxidizer-fuel mixture ratio of the bipropellant engine is not known exactly.  The spacecraft is loaded with only sufficient oxidizer to achieve the velocity for transfer from an intermediate orbit to geosynchronous orbit if the mixture ratio is nominal.  Therefore, more fuel can be loaded.  If the bipropellant engine burn is nominal, there is no excess oxidizer when on-orbit and more fuel is available for stationkeeping.  If the burn is oxidizer-rich, there is a velocity shortfall, which is made up by firing monopropellant engines.  If the burn is oxidizer-lean, the geosynchronous orbit is achieved with a load of excess oxidizer, which must be moved during each stationkeeping maneuver.  A net gain of stationkeeping time results in any of the three mixture ratio cases by comparison with loading of sufficient oxidizer for a full bipropellant burn under worst-case mixture conditions.
Patent CA-1333618-C (CA)
Inventor: SCHERRER ROBERT A
IPC: C07C255/59
Filed: 1990-08-08
Granted: 1994-12-20
Abstract: Novel compounds of the formula:       where R is hydrogen,  lower alkyl,  lower alkoxy,  lower alkylthio, hydroxy or halogen  n is 0, 1 or 2, provided that when n is 2, the R substituents combined contain no more than 6 carbon atoms; and B is a carbon-carbon bond,  lower alkylene,  lower alkenylene,  lower alkylene containing one   ether or thioether link in the alkylene chain, or are useful as intermediates for preparing certain substitued di-t-butyl phenols used as anti-allergic agents.
Patent CA-1334302-C (CA)
Inventor: GILLILAND MALCOLM T
IPC: B23K9/10
Filed: 1994-01-25
Granted: 1995-02-07
Abstract: Disclosed is an apparatus and method that optimize the output voltage and output current provided by an electronic welding station to a welding operation.  A value for a specified welding operation parameter is selected and the values for other welding operation parameters that produce optimum welding results are recorded.   These values are used to implement a control system which automatically varies these other parameters as a function of the adjustment of the selected parameter.  Therefore, an operator need only adjust a single control parameter for a welding operation and the control system automatically selects the optimum values for the other parameters.  This reduces the number of controls that an operator must adjust for a welding operation and results in higher operator efficiency and optimum welding results.  Also disclosed is a transistor failure selection circuit and structure for ease of maintenance.     The  disclosed  circuit  and  structure  reduce maintenance time and costs for a welding station.   The circuit biases a specific selected transistor at a different operating point than any other transistor in a bank of transistors.  Upon an overcurrent condition which exceeds the design current rating of the welding station the  circuit  causes  the specific  selected transistor to fail  in preference to the failure of any other transistor located in the transistor bank.  The selected transistor is mounted in a readily accessible location of the welding station and is easily replaced in the event of failure.  This eliminates the need for the operator to remove the entire bank of transistors and/or other components or circuits typically found in a welding station in order to access and replace the failed transistor.
Patent DK-149591-C (DK)
Inventor: HEAVNER GEORGE
IPC: C07D241/08
Filed: 1981-06-22
Granted: 1987-02-09
Abstract: Immunoregulatory 2,5-diketopiperazine compounds of formula:  <IMAGE> wherein m is 1 or 2 and n is 3 or 4 possess the ability to regulate the immune system of humans and animals. Administration of the compounds will return to a normal state an immune system in need of regulation.
Patent DK-162485-C (DK)
Inventor: WORKUM DONALD
IPC: B05B11/04
Filed: 1984-06-13
Granted: 1992-03-30
Abstract: A deformable spray dispenser comprises a valve unit which is capable of axial displacement within the container with respect to the container cover between a spray-discharge position and an air-suction position. The valve unit supports a member for shutting-off the eductor tube in its air-suction position. The valve unit is provided with a valve cap having an external face which is applied against an internal face of the container cover in the spray-discharge position and cooperates with the internal face so as to form a nozzle for discharging liquid through the container-cover orifice in an atomized spray pattern.
Patent DK-161421-C (DK)
Inventor: MCALLISTER MERLAN ELROY
IPC: A22C13/02
Filed: 1982-07-16
Granted: 1991-12-16
Abstract: A shirred food casing stick with enhanced overall interpleat coherency is produced by imparting a rotational force to the stick as it is shirred, in a direction opposite to the rotational force imparted to the stick by the shirring means.
Patent FI-70697-C (FI)
Inventor: BATTIGELLI JEAN
IPC: D04H1/00
Filed: 1982-08-05
Granted: 1986-10-06
Abstract: The invention relates to the distribution on a receiving device of fibers carried by a gas current. To improve the distribution, the gas current carrying the fibers is subjected to the action of a gas layer which envelopes the current and of which the direction of flow in a plane tangent to the gas current differs from that of the gas current. The action of the gas layer results in an expansion of the current carrying the fibers. The invention is particularly useful where the fibers are received on a collecting device such as a foraminous conveyor belt, of large width.
Patent FI-72275-C (FI)
Inventor: HEINERMAN JACOBUS JOHANNES LEO
IPC: C01B33/20
Filed: 1983-04-25
Granted: 1987-05-11
Abstract: The activity of nickel synthetic mica-montmorillonite (Ni-SMM) for hydrocarbon conversions (e.g. cracking and isomerization) is improved by an after-treatment with a releasable active halogen other than fluorine; preferably with hydrochloric acid. Preferably the catalyst contains palladium.