baber/WOPTO huggingface dataset:
Patent CA-1339764-C (CA)
Title: Basic metal salts having improved color and  stability and vinyl halide polymers containing same
Inventor: QUINN ROBERT EDWIN
IPC: C08K5/00
Filed: 1986-10-06
Granted: 1998-03-24
Abstract: In  accordance  with  the  present invention, it has  been  found  that  the  color and stability of basic alkali  and  alkaline  earth  metal salts  prepared from mixtures   containing   a   phenol  can  be  improved  by conducting  the  reaction  in  the absence of free oxygen and  thereafter  post-treating  the reaction product with at  least one compound capable of displacing the hydrogen of  the  phenolic  hydroxyl groups present in the mixture while  maintaining  oxygen  free  atmosphere.  Generally, the  metal  salts  will  be alkaline earth metal salts of phenols  such  as  calcium and barium salts.  A preferred example   of  the  compound  capable  of  displacing  the hydrogen  of  the  phenolic  hydroxyl group is an epoxide such as ethylene oxide and propylene oxide.
Patent CA-1295593-C (CA)
Title: Centrifugal separator
Inventor: MULZET ALFRED P
IPC: B04B5/00
Filed: 1986-10-17
Granted: 1992-02-11
Abstract: Abstract of the Disclosure A centrifugal separator comprising a circular centrifuge separation channel having an inlet for receiving a liquid to be separated and an outlet for providing components of the liquid in separated layers at different radial locations, a collection chamber for receiving the separated layers, the chamber having first, second and third outlets in the collection chamber for removing components at different radial locations in the chamber, the first and second collection tubes being joined together so that the combined flow of the two tubes flows in a combined collection tube, and pumps connected to receive liquid streams from the combined collection tube and the third collection tube, the pumps being located externally of, and not rotating with, the channel and collection chamber.
Patent CA-1307487-C (CA)
Title: Lubricant production process
Inventor: GARWOOD WILLIAM E
IPC: C10G73/12
Filed: 1986-10-20
Granted: 1992-09-15
Abstract: LUBRICANT PRODUCTION PROCESS                 ABSTRACT OF THE DISCLOSURE        A process for producing lubricant oils of low pour point and high viscosity index by partial dewaxing of a lubricant base stock by isomerization dewaxing followed by a selective dewaxing step.  The isomerization dewaxing step is carried out using a large pore, high silica zeolite dewaxing catalyst such as high silica .gamma. or zeolite beta which isomerizes the waxy components of the base stock to less waxy branch chain isoparaffins.  The severity is controlled to effect only a partial removal of the waxy components.  Further removal of the waxy components is effected during a subsequent dewaxing step which selectively removes of the more waxy n-paraffin components, leaving the branched chain isoparaffins which contribute to a high VI in the product.  The selective dewaxing step may be either a solvent, e.g., MEK dewaxing operation or a catalytic dewaxing, preferably using a highly shape selective zeolite such as ZSM-22 or ZSM-23.  Isomerization dewaxing may be controlled to effect a net increase in the content of isoparaffins and because of the selective nature of the solvent dewaxing step, this increased isoparaffins concentration may be retained, producing a product of high VI.  The pour point of the feedstock is preferably reduced by isomerization dewaxing to a value which is no lower than 6°C and preferably no lower than 12°C, above the target pour point for the products.  Generally, this will entail a reduction of at least 6°C and preferably at least 12°C in the pour point of the feed.
Patent CA-1285983-C (CA)
Title: Telephone subscriber loop overvoltage protection integrated circuit
Inventor: ROBE THOMAS J
IPC: H04M3/18
Filed: 1986-10-22
Granted: 1991-07-09
Abstract: TELEPHONE SUBSCRIBER LOOP OVERVOLTAGE     PROTECTION INTEGRATED CIRCUIT     Abstract An overvoltage protection circuit for communications systems is disclosed for protecting equipment from power crosses on electric utility lines. A timed latch circuit is used to activate a plurality of steering SCR's which crowbar the overvoltage.  The utilization of a latch circuit to activate the steering arrangement, instead of the conventional technique of using actual overvoltage line current, allows smaller devices to be used, thus reducing both circuit size and circuit power dissipation,
Patent CA-1281203-C (CA)
Inventor: BOXENHORN BURTON
IPC: G01C19/56
Filed: 1986-11-05
Granted: 1991-03-12
Abstract: ABSTRACT        An accelerometer transducer has a base holding a sheet normal to an input axis.  The sheet is suspended from the base by a first spring arrangement for oscillatory motion in the way of limited angular excursions about a central axis lying in the sheet.  A weight is spring-suspended from the sheet in a manner permitting displacement of the center of gravity of the weight along the input axis.  Acceleration along the input axis varies the moment of inertia of the assembly consisting of the sheet and the weight about the central axis, altering the frequency of oscillatory motion by an amount functionally related to the magnitude of the acceleration.  Means are provided to drive the sheet at its characteristic frequency and to measure its frequency of oscillation.         In a preferred embodiment, a first transducer includes a weight suspended offset from the sheet in a first direction along the input axis, and a second transducer includes a weight offset from the sheet in the opposite direction along the input axis.  The change of oscillatory frequency of the second transducer is subtracted from that of the first transducer to develop an output quantity linearly related to the acceleration.  In a preferred embodiment, the sheets, springs and weights are micromechanical devices fabricated by semiconductor fabrication techniques.  Electrostatic driving means for driving the sheet, and the capacitive pick-off means for sensing its vibration are also shown.
Patent CA-1282612-C (CA)
Title: Rapid response pressure gauge
Inventor: HOLDEN EDWARD S
IPC: G01L7/04
Filed: 1987-01-14
Granted: 1991-04-09
Abstract: Abstract of the Disclosure In general, the invention features a spring assembly for a gauge comprising a hollow metal tube adapted to change in volume in response to differential pressures applied across its walls, the tube having a neck portion adapted to be connected to a fitting of the gauge, a body portion connected at one end to the neck portion, the walls of the body portions being flattened and their peripheral portions being compressed by cold working to a reduced thickness to thereby increase their yield point to a spring temper and their central portion being compressed relatively less than their peripheral portions to form an axially extending channel which provides for enhanced pressure transmission along the tube, and the other end of the body portion being sealed, the interior of the neck portion adapted to be in pressure communication with the fitting, and the interior of the body portion adapted to be in pressure communication through the channel with the interior of the neck portion, whereby a change in the pressure applied to the fitting is communicated along the interior of the body portion through the channel changing the differential pressure across the walls of the body portion and causing a corresponding change in the volume.
Patent CA-1288959-C (CA)
Title: Method for increasing the efficiency of gas turbine generator systems using low btu gaseous fuels
Inventor: ARCHER DAVID H
IPC: F02C3/28
Filed: 1987-02-04
Granted: 1991-09-17
Abstract: Abstract of the Disclosure An improvement in a process for operating a gas turbine system containing a compression unit, a combustion unit and an expansion unit to operate a generator, wherein a low BTU gaseous fuel is used in the combustion unit and a portion of the air from the compression unit is bled from the system so as to prevent surges in the compression unit by limiting  the  flow of  combustion gases  to the compression unit,  which comprises heating the air charged to the com-pression unit  so as to reduce  the volume of air from the compression unit that is bled from the system, and thereby increase the efficiency of the gas turbine system.
Patent CA-1284348-C (CA)
Title: Bidirectional motor drive circuit
Inventor: JUZSWIK DAVID L
IPC: H02P1/22
Filed: 1987-02-10
Granted: 1991-05-21
Abstract: Abstract Bidirectional Motor Drive Circuit A drive circuit is provided for a bidirectional DC inductive motor, as may be used for automotive window wipers and the like.  Four power MOSFETS are connected in an H-bridge configuration with the motor and a DC source.  A pair of input terminals receives respective direction-controlling logic signals. Respective intermediate switching circuits are connected between each input terminal and the high-side and low-side power MOSFETS connected to the same motor terminal for controlling those two power MOSFETS in a complementary manner.  A braking signal may also be applied to the input terminals.  A third terminal receives a pulse-width modulated control signal and extends it, via appropriate circuitry, to an appropriate one of the low-side power MOSFETS for speed regulation.  The values of certain components of the drive circuitry are selected to minimize cross-conduction between certain power MOSFETS and to optimally accommodate the inductive effects of the motor and leads.
Patent CA-1277568-C (CA)
Title: Gas dispensing system and case therefor
Inventor: KIRCHGEORG JOHN
IPC: A61M16/00
Filed: 1987-05-12
Granted: 1990-12-11
Abstract: ABSTRACT           A gas dispensing system particularly adapted for use as an emergency oxygen inhalator includes a gas storage tank and gas distributing apparatus enclosed in a case having an access opening therein.  The access opening is opened and closed by means of a transparent cover which shows the tank and dispensing apparatus inside the case and makes it easy for a user to quickly find and use the oxygen inhalator.
Patent CA-1292224-C (CA)
Inventor: TEMPERILLI ALDEMIO
IPC: C07D457/02
Filed: 1987-05-19
Granted: 1991-11-19
Abstract: ABSTRACT: Ergoline Esters Ergoline Esters I                               I     (R1=H    or   CH3;   R2=C1-C4   hydrocarbon: R3=H    or      or OCH3;    R4=H    or  halogen : R5=C1-C4    alkyl)   and their pharmaceutically acceptable salts are active in the central nervous system level.             A process for their preparation is also described.
Patent CA-1333245-C (CA)
Title: Laundry detergent bar containing linear alkyl benzene  sulfonate
Inventor: YAM BENNY S
IPC: C11D3/065
Filed: 1987-06-04
Granted: 1994-11-29
Abstract: Laundry detergent bars are formulated with linear alkyl benzene sulfonate and detergent builders.  The process comprises the steps of:  (a) supplying substan-tially anhydrous linear alkyl benzene sulfonic acid, the linear alkyl chain of which contains from about 8 to about 20 carbon atoms; (b) neutralizing the afore-mentioned sulfonic acid with a subtantially anhydrous granular base selected from the group consisting of alkali metal carbonates, alkali metal bicarbonates, and mixtures thereof to form alkali metal linear alkyl benzene sulfonate; (c) blending detergent builder with the aforementioned sulfonate; and (d) preparing laundry detergent bars from the thus formed mixture of detergent builder and alkali metal linear alkyl benzene sulfonate. Importantly, any water which is blended with the alkali metal linear alkyl benzene sulfonate subsequent to the neutralization step mentioned above must be in the form of water of hydration of a material such as an inorganic builder salt used in the formulation.  The resulting bars comprise from about 5% to about 50% alkali metal linear alkyl benzene sulfonate and from about 10% to about 85% detergent builder.
Patent CA-1279270-C (CA)
Title: Sound reproducing apparatus for use in vehicle
Inventor: TERAI KENICHI
IPC: H04R1/28
Filed: 1987-07-10
Granted: 1991-01-22
Abstract: ABSTRACT OF THE DISCLOSURE         A sound reproducing apparatus for use in a vehicle having a speaker system constituted by at least one acoustic duct and a speaker unit disposed at a throat of the acoustic duct, an opening formed at the other end of the acoustic duct facing the passenger compartment of a vehicle.  The apparatus is arranged such that, F0 and Fs are substantially equal to each other.  Where Fs is the lowest frequency in a frequency range within which the imaginary part of the acoustic impedance at the sound radiating surface of the speaker system in the direction of the space within the passenger compartment is zero and F0 is the low-range resonance frequency of the speaker system itself in the free space.
Patent CA-1300134-C (CA)
Title: Crystallization of beta hmx from nitric acid
Inventor: LEVINTHAL MICHAEL L
IPC: C07D257/02
Filed: 1987-08-18
Granted: 1992-05-05
Abstract: ABSTRACT      Method  of  directly precipitating  substantially pure  beta  HMX  from  a  substantially  anhydrous  nitric acid  solution  without  forming  and  recrystallizing polymorphic HMX.  HMX dissolved in a solvent consisting essentially of anhydrous nitric acid is added to water which is seeded with crystals of beta HMX to substan-tially completely precipitate all the HMX from solution as  beta  HMX  without  forming  crystals  of  the  other polymorphic  forms  of  HMX.  A  preferred  reaction  and apparatus for preparing HMX in anhydrous nitric acid is also disclosed.
Patent CA-1280819-C (CA)
Inventor: KREKELS HENRICUS C J
IPC: H01S5/12
Filed: 1987-09-01
Granted: 1991-02-26
Abstract: ABSTRACT:          DFB laser provided with an anti-reflection layer.           A semiconductor laser of the distributed feed-back (DFB or DBR) type, the laser being bounded in the longitudinal direction by end surfaces (5,6) at right angles to the active region and at least  one of these end faces (5) being provided with an anti-reflection layer (8) in order to suppress Fabry-Pérot modes.          According to the invention, in order to obtain an optimum effect, an anti-reflection layer of hafnium oxide is used. The invention is used more particularly with great advantage in lasers of the DCPBH (Double Channel Planar Buried Hetero-structure) type.          Fig. 1.
Patent CA-1295996-C (CA)
Title: Starch hydrolyzate product and method for producing same
Inventor: CATON DENNIS W
IPC: C08B30/18
Filed: 1987-09-02
Granted: 1992-02-18
Abstract: ABSTRACT OF THE DISCLOSURE           A method for improving the properties of particles of a starch hydrolyzate product made by the partial hydrolysis of cereal and root based starches.  Particles of starting material are blended with a volatile liquid other than water, and the resulting blend is compacted in a roller compactor without extraneous lubricant, to form a sheet.  The sheet is broken into small particles which are sieved and dried.  The resulting particles are non-spherical, appear crystalline under a light microscope and have a surface topography comprising cracks, crevices and fissures.  These particles have good solubility, a bulk density comparable to the starting material, and no flow or dusting problems.
Patent CA-1336417-C (CA)
Title: Aromatic substituted glycoside
Inventor: CHAVEZ RODRIGO G
IPC: C12P19/44
Filed: 1987-10-06
Granted: 1995-07-25
Abstract: An aromatic substituted glycoside is disclosed of the formula   wherein the configuration of the substituted -OR on the anomeric carbon is alpha, n is an integer of 0 or 1, and R is a substituted aromatic radical selected from the group (a)         (b)           and (c)          where R1 through R6 are independently halogen, NO2, SO3H,  ,  ,  ,   , where R7 is lower alkyl; and includes its stereoisomers, optical isomers and geometric isomers and mixtures of the foregoing isomers.  These substrates are useful as direct substrates for alpha-amylases.  A process for the preparation of the substrates and related substances is also described.
Patent CA-1278381-C (CA)
Title: Data compression using orthogonal transform and vector quantization
Inventor: KOGA TOSHIO
IPC: H04N19/94
Filed: 1987-11-03
Granted: 1990-12-27
Abstract: "Data Compression Using Orthogonal Transform and Vector Quantization"                 ABSTRACT OF THE DISCLOSURE In an image communication system, an input image sequence is converted into a block-formatted sequence. data compression signal indicative of the amount of moving blocks in the block-formatted sequence is generated to individually control a plurality of vector quantizers each having a particular frequency band and a memory containing output vectors.  The output vectors of each of the vector quantizers is representative of inverse orthogonal transform of a code table of optimum quantized vectors in the particular frequency band, the optimum quantized vectors being orthogonal transform of interframe differential training image sequences.  The output vectors is retrievable from the memory as a function of an interframe differential image sequence, or prediction error.  Each vector quantizer selects one of the vectors retrieved from the memory which is nearest to the value of the interframe differential image sequence and generates an index signal representative of the selected vector, which index signal is encoded and transmitted to a destination.  The outputs of the vector quantizers are processed by inverse vector quantizers to generate a predictive image sequence.  The prediction error is detected as a difference between the predictive image sequence and the block-formatted sequence.
Patent CA-1284814-C (CA)
Title: Aluminum oxide reflector layer for fluorescent lamps
Inventor: TAUBNER FRED R
IPC: H01J61/35
Filed: 1987-11-10
Granted: 1991-06-11
Abstract: ABSTRACT OF THE DISCLOSURE           An improved fluorescent lamp is disclosed.  The lamp of the present invention includes an envelope containing an ionizable medium including mercury and having electrodes located within the envelope; an aluminum oxide reflector layer on the inner surface of the envelope, and a phosphor layer disposed on the reflector layer.  The aluminum oxide reflector layer comprises particles of high purity aluminum oxide having an average particles size greater than 0.5 micrometer and less than or equal to about 1 micrometer and having a surface area of about 4 to 6 meter2/gram.  The aluminum oxide reflector layer preferably includes at least 95 weight percent alpha-alumina.  Preferred coating weights for the reflector layer are from about 8.8 to about 11.1 milligrams/square centimeter.
Patent CA-1295954-C (CA)
Title: Friction pad support mechanism for disc brake
Inventor: HIRASHITA HIROSHI
IPC: F16D65/12
Filed: 1987-12-07
Granted: 1992-02-18
Abstract: ABSTRACT OF THE DISCLOSURE A  disc  brake  has  a  disc  rotor,  a  pair  of confronting friction pad assemblies arranged on both sides of the disc rotor, a pad assembly support member fixed to an automotive vehicle body, and a caliper driving piston for moving one of the friction pad assemblies relative to the other in an axial direction of the disc rotor.   The pad assemblies are each provided with a pair of lower two engaging steps for transmitting the brake torques to the support member, and also with upper corner shoulders for transmitting the brake  torques.   The support member  is provided with step portions corresponding to the engaging steps and the upper  corner  shoulders  of the  brake assemblies.  Thus, it is possible to reduce or suppress a deformation of the brake assemblies when the disc rotor rotates upon the brake application.
Patent CA-1321411-C (CA)
Title: Facade heating
Inventor: MEYER HORST-DIETER
IPC: F24D13/02
Filed: 1987-12-15
Granted: 1993-08-17
Abstract: Abstract A metal facade construction having a heating device acting as a building heating system in a supporting struc-ture located on the inside of the building can be obtained by arranging, on the supporting structure, heating cables in grooves of the metal profiles forming the supporting struc-ture.  These heating cables contain, inside an insulated enclosure, a temperature-sensitive heating conductor material which, in the event of a local temperature increase in a specific portion of the heating cable, increases its specific resistance in that portion and thereby reduces the heating capacity in order to reduce its temperature in that heating cable portion, so that the heating cable exhibits a self-regulation property over its entire length.
Patent CA-1295644-C (CA)
Inventor: LEWIS BUFORD
IPC: F16L35/00
Filed: 1988-01-07
Granted: 1992-02-11
Abstract: ABSTRACT A tractor-trailer coupling safety device includes a housing mountable about the curved medial area of a pair of joined coupling elements and presenting opposed inwardly directed projections serving to contain and prevent the members from separating from the housing while allowing normal angular relative displacement between the joined coupling elements.
Patent CA-1339992-C (CA)
Title: Anticoagulant polypeptede
Inventor: SAINO YUSHI
IPC: A61K38/00
Filed: 1988-02-15
Granted: 1998-08-11
Abstract: A polypeptide having a specific amino acid sequence is described. Also described are a novel DNA coding the polypeptide, a recombinant plasmid containing the DNA, a transformant containing the recombinant plasmid, an anticoagulant containing the polypeptide as an effective ingredient, and a process for the production of the polypeptide.
Patent CA-1298751-C (CA)
Title: Ultra-high filtration filter
Inventor: BERGER RICHARD M
IPC: B29C48/06
Filed: 1988-02-23
Granted: 1992-04-14
Abstract: ABSTRACT OF THE DISCLOSURE        An ultra-high efficiency   cigarette   filter   is formed  from  a  web  of  entangled ultra-fine melt blown plastic fibers of extremely low bulk density.  The web is formed  into a  substantially  cylindrical  rod  and  is encapsulated in and supported by an external plastic tube which  adheres  to  the outer surface of the rod over the entire area of contact therebetween.   Cigarette  filters in  accordance  with the  invention  may have filtration efficiencies in  excess  of  80%.  The  disclosure  also includes  processes  and  apparatus for manufacturing the high efficiency filters.
Patent CA-1318072-C (CA)
Title: Reinforced molding resin composition
Inventor: NAKAI MIKIO
IPC: C08K3/36
Filed: 1988-03-03
Granted: 1993-05-18
Abstract: Abstract of the Disclosure A reinforced molding resin composition comprises (A) a polyacetal resin or aromatic polyester resin, and in mixture therewith, (B) one or more kinds of reinforcing materials selected from glass fibers, carbon fibers, and potassium titanates, in an amount of 2- 57% by weight based on the total weight of the composition, and (C) a mica having a mean particle diameter of 0.5- 20 µm and an aspect ratio of more than 10, in an amount of 3 - 58% by weight based on the total weight of the composition, in such a way that the total amount of the ingredients (B) and (C) is not more than 60% by weight based on the total weight of the composition.
Patent CA-1324083-C (CA)
Title: Pharmaceutical preparations containing non-steroidal anti-inflammatory agents
Inventor: IIJIMA TAKEO
IPC: A61K47/42
Filed: 1988-03-08
Granted: 1993-11-09
Abstract: ABSTRACT OF THE DISCLOSURE         Pharmaceutical preparations for oral administration are disclosed which comprise (a) an acidic non-steroidal anti-inflammatory agent having the mean particle size of about 100 µm or less and (b) a protein hydrolyzate or a polypeptide having the mean molecular weight of 4000-12000.  The pharmaceutical preparations are in the form of tablets, granules, capsules and dry syrups.  They achieve high bioavailability of the anti-inflammatory agent, e.g., ibuprofen.