baber/WOPTO huggingface dataset:
Patent CA-2050455-C (CA)
Inventor: YEN CHIA MING
IPC: F02B41/00
Filed: 1991-08-30
Granted: 1999-04-27
Abstract: An aluminum casting alloy consisting of, by weight, of 7.0-13.0% copper, .4-1.2% manganese, .21-.40% vanadium, .31-.70% zirconium; impurities limited to: less than to 0.6% Si, less than 0.8% Fe, less than .2% zinc, less than 0.1% Mn, less than 0.2% Ni, and the remainder being essentially aluminum.  There is an absence of titanium, cobalt, molybdenum, tungsten, chromium, boron, tantalum, and niobium.  The alloy has, at room temperature, a UTS of about 61 ksi, a YS of about 49 ksi, a tensile elongation of about 6%, and tensile modulus elasticity of about 11.5 MSi, a compressive yield strength of about 53 ksi, a compressive modulus of elasticity of about 18 MSi; high temperature physical properties at 500°F, after 1000 hours exposure to 500°F, comprise a tensile strength of 33 ksi or greater, a tensile yield strength of 23 ksi or greater, a tensile elongation of about 9%, and tensile modulus of elasticity of 10 msi.  The alloy is fabricated by a) squeeze casting an aluminum alloy melt of such character; (b) extracting the solidified casting from the die and heat treating the casting to dissolve all alloying elements (i.e., 995-1018°F for 7-20 hours); and (c) aging the solution treated casting to achieve improved strength characteristics (i.e., in the range of 340-400°F for 5-20 hours).
Patent CA-2054360-C (CA)
Title: Apparatus for recording and reproducing digital picture data
Inventor: SENSHU YOICHIROU
IPC: H04N5/7826
Filed: 1991-10-28
Granted: 2004-05-25
Abstract: In an apparatus for recording and reproducing a digital picture signal, the large number of data bits in the digital picture signal to be recorded is reduced by a ratio of approximately 1:9, and the thus compressed data are recorded with a recording density of at least approximately 0.8 bit/µm2 in relatively narrow successive skewed tracks without guard bands on a metal evaporated magnetic tape having predefined characteristics. The magnetic tape has a width of no more than approximately 8 mm and a thickness of no more than approximately 7 µm and is wound in a relatively small size cassette.
Patent CA-2054898-C (CA)
Title: Detergent composition
Inventor: EDWARDS ROBERT JAMES
IPC: C11D3/46
Filed: 1991-11-04
Granted: 1996-12-03
Abstract: A foaming detergent composition for personal washing comprises:          A   -     a detergent active, preferably a mixture of A1 - non-soap anionic detergent, and A2 - amphoteric or polar nonionic detergent; and B  -  a skin emollient material, preferably selected from B1 - skin moisturizers B2 - occlusive agents B3 - humectants and mixtures thereof.
Patent CA-2055419-C (CA)
Title: Nonaqueous polyisocyanate formulation
Inventor: HAEBERLE KARL
IPC: C08G18/70
Filed: 1991-11-13
Granted: 1999-07-13
Abstract: Nonaqueous polyisocyanate formulation containing a)   one or more aliphatic polyisocyanates having a mean NCO functionality of from 2.5 to 3.5 and b)   an amount, which ensures that the polyisocyanate is dispersible, of a reaction product of a diisocyanate selected from the group consisting of tetramethylene diisocyanate,  hexamethylene diisocyanate, dodecamethylenediisocyanate,1,4-diisocyanatocyclohexane, 4,4'-di-(isocyanatocyclohexyl)-methane, diisocyanatotrimethylhexane,    diisocyanatotetramethylhexane, 1-isocyanato-3,3,5-trimethyl-5-(isocyanato-methyl)-cyclohexane, tolylene  2,4- and 2,6-diiso-cyanate, tetramethylxylylene diisocyanate, p-xylylene diisocyanate,  2,4'- and 4,4'-diisocyanatodi-phenylmethane and a mixture of two or more of these diisocyanates  with  a  monohydric  or  polyhydric polyalkylene ether alcohol where the alkylene groups are of 2 to 4 carbon atoms and which contains a polyether chain having 8 or more ethylene oxide units, are prepared and are used in aqueous coating materials and in adhesive dispersions.
Patent CA-2055665-C (CA)
Title: Field effect transistor
Inventor: NAKAJIMA SIGERU
IPC: H01L29/812
Filed: 1991-11-15
Granted: 2001-07-24
Abstract: In a prior art HEMT, when a high electric field is applied to the gate electrode, two-dimension electrons in the channel layer move to the electron supply layer and the high frequency characteristic is deteriorated. The present invention provides a field effect transistor in which a semiconductor layer having a thickness to spatially separate a two-dimension electron gas from doner ions of an electron supply layer and form two-dimension electron gas in a channel layer by a Coulomb force of the doner ions and having a better high frequency characteristic than that of the electron supply layer is formed between the channel layer and the electron supply layer.      In accordance with the present invention, when a high electric field is applied to the two-dimension electron gas and the energy of the electrons increase so that the electrons jump out of the channel layer, the electrons are moved to the semiconductor layer of the predetermined thickness having the good high frequency characteristic, which is adjacent to the channel layer. As a result, even if the high electric field is applied to the channel of the FET, the transport characteristic of the electrons is not deteriorated and the high frequency characteristic of the device is assured.
Patent CA-2057482-C (CA)
Title: Transformer fault protection device
Inventor: EFANTIS ANTONIOS
IPC: H02H1/00
Filed: 1991-12-12
Granted: 2000-10-31
Abstract: A transformer ground fault protector is provided and includes sensing means to be positioned adjacent but spaced from the output of each secondary winding in a transformer having its secondary windings connected in series and at the midpoint of the series circuit to ground. The sensing means forms a capacitive circuit with the windings and generates an output voltage when the secondary windings are energized. The output voltages generated by the sensing means are combined which in normal operation of the transformer, results in a voltage having a magnitude substantially equal to zero volts. However, when a fault occurs in the transformer, the output voltages induced in the sensing means are unequal and opposite in polarity resulting in a voltage having an absolute value greater than zero when combined. The resultant voltage in turn is conveyed to a comparator which compares the magnitude of the resultant voltage with a predetermined threshold voltage. When the resultant voltage is greater than the predetermined threshold voltage, the comparator provides a positive output voltage which is used to bias a switch connected in series with the transformer primary winding to an open condition thereby to isolate the primary winding from its power supply. An LED is illuminated when the primary winding is isolated from the power supply to provide a visual indication of the transformer fault condition.
Patent CA-2066623-C (CA)
Title: Liquid detergents containing deflocculating polymers
Inventor: VAN DE PAS JOHANNES CORNELIS
IPC: C11D17/00
Filed: 1990-10-04
Granted: 2001-03-06
Abstract: A liquid detergent composition comprising a dispersion of lamellar droplets of detergent active materials in an aqueous continuous phase, said composition comprising a deflocculating polymer and said composition having a pH of more than 12.5
Patent CA-2068662-C (CA)
Title: Method and apparatus for measuring a parameter of a gas in isolation from gas pressure fluctuations
Inventor: GOULDING PETER
IPC: G01N33/00
Filed: 1992-05-14
Granted: 2002-10-29
Abstract: A method and apparatus for measuring a para-meter of a test gas in isolation from gas pressure fluctuations. A pump draws the test gas through an air capacitor into a sensor, storing the gas in the capaci-tor. A valve closes a fluid flow path which admits the test gas to the air capacitor and opens a fluid flow path between the air capacitor arid a constant pressure alter-nate gas source, isolating the air capacitor and the sensor from pressure fluctuations in the test gas. The air capacitor prevents any mixing of the test gas with the alternate gas until measurement of the unknown parameter has been accomplished.
Patent CA-2076513-C (CA)
Inventor: ROSEN JONAS
IPC: F16L9/02
Filed: 1992-08-20
Granted: 2000-08-01
Abstract: The invention provides a tube assembly with improved resistance to thermal fatigue and stress corrosion for usage in soda recovery units. The assembly comprises an inner tubing of a conventional carbon steel and an outer liner of a Cr-Ni-Mo-Fe-based alloy with austenitic structure which contains, in weight-%, 0.01-0.04C, 19.5-23.5 Cr, 38-46 Ni, 2.5-3.5 Mo, up to 0.5 Si, up to 0.3 N, and the remainder being Fe, except normal impurities.
Patent CA-2080915-C (CA)
Title: Coinjection molding of preforms for multi-layer containers
Inventor: BECK MARTIN H
IPC: B29C45/16
Filed: 1991-04-19
Granted: 1998-11-24
Abstract: A multi-cavity injection mold (1), for simultaneously injection molding a plural ity of multi-layer articles having a single hot runner manifold system (19) for the sequential supply of first and second mo lten molding materials to the cavities (3) of the mold with each of the materials being supplied simultaneously to all cavities in equal quantities. The invention also provides a core rod (5) for each cavity in which a concavity is provided, adjacent the entr y point of the materials into the cavity, to prevent the first injected material in an injection cycle from being washed from the end of the core rod by the second injection material, a buffer of the first injected material in the neck region of the preform to compe nsate for variations in temperature of the cavities and material being distributed to different parts of the mold and the use of the first part of the metered quantity of the first to be injected material from the next injection cycle to seal the preform at the end o f the injection cycle.
Patent CA-2081341-C (CA)
Inventor: JESKEY MARION M
IPC: G02B5/08
Filed: 1991-04-24
Granted: 1999-06-15
Abstract: On produit des miroirs d'une manière ne présentant pas de danger pour l'environnement et sensiblement exempte de pollution selon un procédé de pulvérisation dans lequel on pulvérise sur un substrat transparent (10) tel que du verre une première couche (12) et ensuite une couche réfléchissante (14) en argent ou d'un autre métal réfléchissant clair. On recouvre une couche réfléchissante (14) d'une couche d'arrêt (16) afin de protéger cette dernière des environnements corrosifs. Si le facteur de transmission de la couche réfléchissante (14) est supérieure à zéro pourcent, la couche d'arrêt (16) comporte un métal réfléchissant clair différent suffisant pour réduire le facteur de transmission des couches réfléchissante et d'arrêt combinées à zéro pourcent. Le miroir comprend une couche protectrice polymère exempte de plomb (22) plus espacée du substrat transparent que ladite couche d'arrêt. L'inclusion de pigment de zinc dans le revêtement polymère (26) assure une protection au sulfure, et l'emploi d'un film de zinc (24) ou d'oxyde de zinc (24) extérieur pulvérisé assure sur ce dernier l'adhérence du revêtement polymère (26).
Patent CA-2081880-C (CA)
Title: Coffee brewing machine
Inventor: AEBI THOMAS
IPC: A47J31/36
Filed: 1992-10-30
Granted: 1994-12-13
Abstract: ABSTRACT OF THE DISCLOSURE        The invention provides a coffee brewing machine, com-prising a container for fresh cold water, a boiler for heating the fresh cold water, a brewing chamber adapted to receive cof-fee powder, a pump for feeding the fresh cold water from the container to the boiler and therefrom into the brewing chamber, a piston fitting into the brewing chamber and being movably mounted such that it can be moved into the brewing chamber to compress the coffee powder contained in the brewing chamber and removed from the brewing chamber, and an electric DC motor for driving the piston into the brewing chamber and for retracting it out of the brewing chamber. In order to provide for a simple connection of the electric motor to the mains voltage, a drop resistor and a rectifier diode are connected in series with the electric motor. The drop resistor simultaneously serves as a heating element for a hotplate on which the coffee cups can be preheated.
Patent CA-2084006-C (CA)
Inventor: ASANO KENICHI
IPC: H04N19/625
Filed: 1992-11-27
Granted: 1998-04-21
Abstract: An information source encoding system in which overload noise and block noise are less recognized and quantizing overload and large quantizing distortion can be reduced within an intra-frame mode encoding region even when intra-frame and inter-frame mode encoding regions coexist in an image screen. An orthogonal converter outputs conversion coefficients in a predetermined spatial frequency region.          A coefficient separating unit selectively separates the conversion coefficients.  With the separated coefficients from the coefficient separating unit, a power is calculated.          The calculated power is compared with a predetermined threshold value by a coefficient power determining unit.          A step width controller sets a quantizing step width, based on the combination of a power determining ON/OFF signal from the coefficient power determining unit and an adaptive control ON/OFF signal from the encoding controller, when the coefficient power is larger than the threshold value in the intra-frame mode, and sets a quantizing step width determined by the quantization characteristic designation signal from the encoding controller in remaining cases.  As a result, a combined adaptive quantization characteristic signal having a quantizing step width for combined adaptive control is output to the quantizer.
Patent CA-2084396-C (CA)
Title: Method of decarburizing molten metal in the refining of steel using neural networks
Inventor: FEINSTEIN JONATHAN JAY
IPC: C21C5/30
Filed: 1992-12-02
Granted: 1998-07-28
Abstract: A method of decarburizing molten metal in the refining of steel using neural networks with a first neural network trained to analyze data representative of many process periods of one or more decarburization operations for providing an oxygen count for a preselected gas ratio of oxygen to diluent gas to cause the temperature of the molten metal bath to be decarburized to rise to a specified aim temperature and with a second neural network trained to analyze data representative of many process periods of one or more decarburization operations for providing an output schedule of oxygen counts to be injected into the bath to reduce the carbon level to a predetermined aim level in one or more successive stages corresponding to a preselected schedule of ratios of oxygen to diluent gas.
Patent CA-2084499-C (CA)
Title: Emi shield apparatus and methods
Inventor: WEBER WILLIAM F
IPC: H05K9/00
Filed: 1992-12-03
Granted: 1998-11-03
Abstract: A top cover and bottom cover made of an electrically conductive material that absorbs and reflects electromagnetic interference (EMI) signals are formed to fit without solder or welding as an EMI shield apparatus over EMI susceptible electronic circuitry on a printed circuit board.  The EMI shield apparatus shields the circuitry from EMI while at the same time permitting the communication of desired electromagnetic radio frequency and electrical signals to the circuitry.  The EMI shield apparatus includes the use of an electrically conductive layer that is integral to the top and bottom sides of the printed circuit board and which includes conductive channels that penetrate the printed circuit board.  The channels prevent EMI from passing through the printed circuit board to the electronic circuitry.  Also, the channels receive tangs found both on the top cover and bottom cover.  The tangs are positioned to prevent EMI from passing through the top and bottom cover junctures with the conductive layer.  As EMI signals reach the shield apparatus, they are absorbed and conducted through the shield EMI apparatus to an electrical ground or reflected from the EMI shield.  Openings on the top cover permit desired electromagnetic radio frequency signals to reach the electronic circuitry.  Passageways through the conductive layer permit electrical leads from the electronic circuitry to connect to external circuitry.
Patent CA-2086144-C (CA)
Title: Paper substitutes based on thermostable fibers, pulp and binder, and fabrication process thereof
Inventor: CASSAT ROBERT
IPC: D21H17/56
Filed: 1992-12-23
Granted: 1999-09-14
Abstract: Reactivable paper and process for obtaining it. The paper consists of fibres with heat resistance >/= 180 DEG C, which are bonded together by means of a fibrous binder consisting of aromatic polyester or polyamide pulp and of a chemical binder consisting of an imide polyether of an aromatic polyester or of a resin of polyimide type, with a particle size smaller than 100  mu m, a softening point of between 50 and 200 DEG C and a degree of crosslinking of between 0.025 and 0.25. The proportion of fibres by weight in the finished paper is preferably generally between 45 and 85 %, that of the fibrous binder between 5 and 20 % and that of the chemical binder between 10 and 50 %. The papers are obtained by a wet route and find wide applications as a function of the degree of advancement of the resin, for example as a dielectric.
Patent CA-2092344-C (CA)
Title: Bioabsorbable wound implant materials
Inventor: ROSENTHAL ARTHUR L
IPC: A61F2/00
Filed: 1993-03-24
Granted: 2005-06-14
Abstract: Heteromorphic sponges are described which have matrix structures with oriented substructures added to facilitate cellular invasion. A sponge may be used as a wound implant by cutting it to the shape of a wound bed and placing therein. The matrix structure provides conduits which assist invasion of the sponge by cells which degrade the sponge and lay down new tissue to replace it. The incorporation of active agents in the matrix and/or substructures enhances wound healing.
Patent CA-2097497-C (CA)
Inventor: ALPHEY THOMAS JAMES WILLIAM
IPC: A61K31/40
Filed: 1991-11-28
Granted: 2001-07-24
Abstract: The use of the compound 2R,SR-dihydroxymethyl-3R,4R-dihydroxypyrrolidine (DMDP) (I) or an acid addition salt there-of in controlling diseases caused by parasitic nematodes in plants or mammals.
Patent CA-2097744-C (CA)
Inventor: ROBERTSON JOHN A
IPC: G06K1/12
Filed: 1993-06-04
Granted: 1999-09-07
Abstract: Marking apparatus and method is described wherein an array of marker pins are carried by translational assembly which, in turn, is driven from stepper motors which perform in conjunction with high helix lead angle lead screws. Solenoid actuated pneumatic valves are employed to actuate the marker pins within an array thereof and the entire assemblage of motors, valves, translational mechanism, and control features are retained within a compact housing structure. The control system and associated translational mechanism is capable of driving the marker head assembly in matrix, raster, and continuous modes of operation. Speed of marking is enhanced through the employment of a masking procedure wherein the translational mechanism drives the marker head assembly only to locations where active character forming pixels are present.
Patent CA-2099145-C (CA)
Inventor: HIDDING WALTER E
IPC: B65D41/34
Filed: 1993-06-25
Granted: 1999-10-26
Abstract: An injection molded threaded cap for use with containers of varying dimensions.  The cap of the present invention includes a cover from which depends an integral plug.   An auxiliary sealing ring is disposed at the outside base of the plug to compensate for differences between the diameter of the plug and the diameter of the opening to be sealed by the cap.  To prevent doming of the cover of the cap, the underside of the cover has shrinkage  resistance  formations which provide the cap with structural resistance to the effects of shrinkage.  The cap of the present invention further includes a ratchet ring having ratchet teeth designed to enhance the tamper-evidency of the frangible ratchet ring. In an alternative embodiment, the cap includes a thread form which reduces the amount of rotation required to install the cap onto a bottle neck.  The thread form includes thread segments which result in less resin being used to form the cap and which results  in the formation of an unthreaded area at the base of the inside surface of the skirt of  the  cap.    The unthreaded  area  facilitates  the  initial engagement of the cap and the bottle neck.   The alternative embodiment also includes a spline arrangement which provides the cap with an anti-stripping feature.
Patent CA-2114285-C (CA)
Title: Superplastic aluminum alloy and process for producing same
Inventor: MIYAKE YOSHIHARU
IPC: C22C21/00
Filed: 1994-01-26
Granted: 2001-07-24
Abstract: The present invention relates to a process for producing a superplastic aluminum alloy capable of being used for plastic working such as extrusion, forging and rolling. An object of the present invention is to provide an ingot-made high speed superplastic aluminum alloy in which superplasticity is developed at a strain rate higher than that of conventional static recrystallization type superplastic aluminum alloys, and a process for producing the same. The superplastic aluminum alloy of the invention has structure which is obtained by adding to a basic alloy containing from at least 4.0 to 15% by weight of Mg and from 0.1 to 1.0% by weight of one or more elements selected from the group consisting of Mm, Zr, V, W, Ti, Ni, Nb, Ca, Co, Mo and Ta, and further selective elements of Sc, Cu, Li, Sn, In and Cd, which contains from 0.1 to 4.0% by volume fraction of spheroidal precipitates of intermetallic compounds having a particle size from 10 to 200 nm, and which has a mean grain size from 0.1 to 10 µm.
Patent CA-2115432-C (CA)
Title: Substituted .beta.-amino acid derivatives useful as platelet aggregation inhibitors
Inventor: ZABLOCKI JEFFERY ALAN
IPC: A61K31/215
Filed: 1992-10-06
Granted: 2003-06-03
Abstract: Novel substituted beta-amino acid; derivatives having general formula (I), are provided, in which e.g. R2 is selected from the group consisting of hydrogen, lower alkyl radicals, lower alkenyl radicals, lower alkynyl radicals, alicyclic hydrocarbon radicals, aromatic hydrocarbon radicals, wherein said radicals are optionally substituted with hydroxy, lower alkoxy, lower alkyl, halogen, nitro, cyano, azido, ureido, ureylene, carboxyl or carbonyl derivatives, trifluoromethyl, acyloxy, alkylthio, arylthio, alkylsulfenyl, arylsulfenyl, alkylsulfonyl, arylsulfonyl, amino, alkylamino, trialkylsilyl, aminosulfonyl, dialkylami-no, alkanoylamino, aroylamino, phenyl, naphtyl, lower alkynyl which are optionally substituted with one or more of the fol-lowing: halogen, nitro, lower alkoxy, lower alkyl, trialkylsilyl, azide and phenyl; the invention also pertains to pharmaceuti-cal compositions comprising such derivatives:
Patent CA-2115828-C (CA)
Title: Calcium receptor active molecules
Inventor: NEMETH EDWARD F
IPC: A61P19/08
Filed: 1992-08-21
Granted: 2011-09-20
Abstract: Method and composition useful for treating a patient having a disease characterized by an abnormal level of one or more components, the activity of which is regulated or affected by activity of one or more Ca2+ receptors. Novel compounds useful in these methods and compositions are also provided. The method includes administering to the patient a therapeutically effective amount of a molecule active at one or more Ca2+ receptors as an agonist or antagonist. Preferably, the molecule is able to act as either a selective agonist or antagonist at a Ca2+ receptor of one or more but not all cells chosen from the group consisting of parathyroid cells, bone osteoclasts, juxtaglomerular kidney cells, proximal tubule kidney cells, keratinocytes, parafollicular thyroid cells and placental throphoblasts and a pharmaceutically acceptable carrier.