baber/WOPTO huggingface dataset:
Patent CA-1290993-C (CA)
Title: Stabilized alkaline gold bath for electroless deposition of gold
Inventor: OTT WALTER
IPC: C23C18/44
Filed: 1988-03-08
Granted: 1991-10-22
Abstract: ABSTRACT OF THE DISCLOSURE         The invention relates to a stabilized, aqueous, alka-line gold bath containing a dicyanogold(I) complex, a complexing agent, an alkali metal hydroxide and a reducing agent, for elec-troless deposition of gold on gold and other metals more elec-tronegative than gold, as well as on alloys of these metals.  The bath contains at least one compound from the group consisting of glycol derivatives or polyethyleneimines as a stabilizing agent.
Patent CA-1294727-C (CA)
Title: Acrylic rubber, acrylic rubber composition and cured rubber article thereof
Inventor: OHHARA TOSHIO
IPC: C08F220/12
Filed: 1988-03-25
Granted: 1992-01-21
Abstract: ABSTRACT OF THE DISCLOSURE         An acrylic rubber obtainable by copolymerizing a monomer mixture of:         (A) 70 to 99.99% by weight of at least one compound selected from the group consisting of alkyl acrylates and alkoxyalkyl acrylates, (B) 0.01 to 10% by weight of at least one compound represented by the general formula:       wherein R1 is a hydrogen atom or a methyl group; X is a hydrogen atom, -COOR6 (R6 is an alkyl group having 1-10 carbon atoms or an alkoxyalkyl group having 2-14 carbon atoms), or  ; R2 , R3 and R4 are independently hydrogen atoms or groups having 1-10 carbon atoms whose carbon atom adjacent to C=C has no hydrogen; R5 is a group having 1-10 carbon atoms whose carbon atom adjacent to C=C has no hydrogen; Y is   or -O-; and n is 1 or 0, and (C) 0-20% by weight of at least one compound selected from the group consisting of other unsaturated compounds of the vinyl type, vinylidene type and vinylene type, in the presence of a radical polymerization initiator.  Said acrylic rubber, when crosslinked with a crosslinking agent, gives a cured article having good heat resistance and a good compression set property and accordingly suitable for use as a hose or a sealing material.
Patent CA-1328233-C (CA)
Inventor: DIXON GEORGE
IPC: B01D45/16
Filed: 1988-03-28
Granted: 1994-04-05
Abstract: ABSTRACT OF DISCLOSURE                    "GAS FILTER"       A gas filter which is formed from a single continuous sheet of material folded along a plurality of parallel fold lines and interconnected at appropriate folds so as to produce an element having spaced front and rear faces and a plurality of partition walls extending between  said  front  and  rear  faces  and  defining therebetween a plurality of chambers of wedge-shaped cross-section,  the wedge-shapes of adjacent chambers being oppositely orientated,  and,  said sheet being formed with apertures such that gas can flow through the filter from the front face to the rear face  and in so doing is constrained to pass through apertures in at least one partition wall so as to pass through at least two adjacent chambers.
Patent CA-1303195-C (CA)
Title: Distributed feedback semiconductor laser
Inventor: HIRATA SHOJI
IPC: H01S5/12
Filed: 1988-03-29
Granted: 1992-06-09
Abstract: ABSTRACT OF THE DISCLOSURE   A distributed feedback semiconductor laser has a first cladding layer, an active layer, a guide layer on which a diffraction grating is formed and a second cladding layer, the effective thickness of the guide layer in the waveguide direction being made different in one region to change the phase of a light propagating through the waveguide.
Patent CA-1314020-C (CA)
Inventor: RUPPEL REMY
IPC: B65C1/02
Filed: 1988-04-08
Granted: 1993-03-02
Abstract: The device for wrapping products, such as packets of paper handkerchiefs, in packets with label, having a means for converying a strip (11) of flexible material, cutting it into sheets and wrapping the products in the sheets, and a means for depositing the labels at regular intervals on the strip is characterized in that it has a cutting mechanism (27) co-operating with a transfer mechanism (28) for cutting the labels from an ribbon (21) with adhesive applied to one surface and placing the said labels on the moving strip (11). The invention is applied in particular to the adhesive strips for affixing the flaps of packets of paper handkerchiefs. A strip of flexible material such as polyethylene is previously marked with a discontinuous cutting line which traces the outline of the flap, the adhesive strips are laid on the strip acrossthe flaps, and then the film is cut, transversally to its direction of motion into individual sheets (3) in which the packets (2) are wrapped.
Patent CA-1304255-C (CA)
Title: Drawbar
Inventor: WEENK ALAN
IPC: A01B73/06
Filed: 1988-05-31
Granted: 1992-06-30
Abstract: ABSTRACT     In an agricultural drawbar, a novel foldable wing hitch assembly is employed such that when the agricultural drawbar is in a transport position, wing hitches and wing hitch support arms are folded inwardly in a scissor-like manner, thereby obtaining a very narrow transport width.  Depending upon the end use of the drawbar, the wing hitch can be constructed from one piece, or in two sections with a pivotal connection.  A lockable pin placed in the pivotal connection between the two wing hitch sections maintains them in direct alignment such that the drawbar can be backed up with the centre and wing sections of the main boom remaining extended transverse to the line of travel.
Patent CA-1311026-C (CA)
Title: Electrically conductive layered board; preferably for  display purposes and connecting device therefore
Inventor: CHRISTENSEN BORGE R
IPC: G09F13/28
Filed: 1988-06-03
Granted: 1992-12-01
Abstract: ABSTRACT   Electrically conductive layered board for use with low-voltage electrical equipment provided with piercing connectors, preferably for display purposes, comprising at least one first thin metal foil, preferably aluminium applied to an electrically insulating layer, the insulating layer including a plastics material that is sufficiently pliable to allow the metal foil to be deformed and bent into said insulating layer when a connector is pressed through the metal foil into, and to be held by, the insulating layer, thus ensuring a large contact surface between said connector and said metal foil. The invention also relates to an electrical connecting device for the connection of a low-voltage conductor for the supply of a current to the electrically conductive layers of the board.
Patent CA-1318488-C (CA)
Inventor: WHITE DANNY R
IPC: C04B35/65
Filed: 1988-07-15
Granted: 1993-06-01
Abstract: ABSTRACT       Self-supporting bodies are produced by reactive infiltration of a parent metal into boron carbide typically resulting in a composite comprising a boron-containing compound and metal.  The mass to be infiltrated may contain one or more inert fillers admixed with the boron carbide to produce a composite by reactive infiltration, which composite comprises a matrix of metal and boron-containing compound embedding the filler.  The relative amounts of reactants and process conditions may be altered or controlled to yield a body containing varying volume percents of ceramic, metal and/or porosity.
Patent CA-1302011-C (CA)
Title: Absorbent structure designed for absorbing body fluids
Inventor: BERNARDIN LEO J
IPC: D04H1/42
Filed: 1988-07-21
Granted: 1992-06-02
Abstract: ABSTRACT      In a disposable absorbent garment, an absorbent structure includes liquid absorbing material comprising an upper layer comprising preferably softwood fibers and having a density from about 0.03 to about 0.14 g/cc, a lower layer comprising preferably hardwood fibers, formed substantially separately from and underlying at least a portion of the upper layer, the second layer having top and bottom surfaces, a density from about 0.14 to about 0.3 g/cc, a total void volume greater than about 80%, an average pore size distribution generally less than the average pore size distribution of the upper layer.  There is an overlap in the pore size distributions of the upper and lower layers such that the smallest pores in the upper layer are smaller than the largest pores in the lower layer and front and rear fluid storage pouches, preferably spaced from one another at the front one-third and rear one-third of the absorbent structure, respectively, each pouch comprise superabsorbent material disposed in a hydrophilic web.  The spaced fluid storage pouches are preferably located underlying the bottom surface of the lower layer so that the absorbent structure is substantially free of superabsorbent material in the middle one-third thereof.
Patent CA-1299971-C (CA)
Title: Fire fighting process and use of the process
Inventor: NAHMIAS JEAN
IPC: A62C3/02
Filed: 1988-07-26
Granted: 1992-05-05
Abstract: ABSTRACT OF THE DISCLOSURE     The invention relates to a fire fighting process, characterised in that it consists of using non-propagative elements or of employing means for rendering the combustible elements non-propagative, in such a way that the percentage of non-propaqative sites which the fire is liable to encounter is greater than a given threshold of less than 100%.
Patent CA-1333382-C (CA)
Title: Draught beer dispensing system
Inventor: HORINO MORIKATSU
IPC: B67D1/02
Filed: 1988-08-24
Granted: 1994-12-06
Abstract: A  draught  beer  dispensing  system  according  to  the present invention comprises a pressure regulating valve for regulating pressure of carbon dioxide gases supplied from a source of supplying carbon dioxide gases to a draught beer receiving  receptacle, a temperature  detector  provided adjacent to the receiving receptacle to detect a temperature of  draught  beer  within  the receiving  receptacle  and  an arithmetically control device for controlling the pressure regulating valve on the basis of a detected value of the temperature detector, wherein in dispensing the draught beer from the draught beer receiving receptacle, a temperature of the draught beer within the receiving receptacle is detected by the temperature detector, the detected value is inputted into the arithmetically control device, supplied pressure of carbon  dioxide  gases  supplied  into  the  draught  beer receiving receptacle is arithmetically operated on the basis of the relationship between beer temperature and pressure stored in advance in the arithmetically control device, and an output signal corresponding to the thus operated result is outputted to the pressure regulating valve to control the latter whereby carbon dioxide gases having pressure optimum for the temperature of draught beer when dispensed can be supplied  to  the  draught  beer  receiving  receptacle  with eliminating flat beer and excessively foamy beer.
Patent CA-1328769-C (CA)
Inventor: MIJAC MARKO D
IPC: A21D2/16
Filed: 1988-09-07
Granted: 1994-04-26
Abstract: IMPROVED BAKED GOODS MADE WITH SUCROSE FATTY ACID ESTERS            Abstract of the Disclosure The invention relates to dough compositions that are baked to form pastries, biscuits, shortbreads and shortcakes having improved tenderness. This benefit is achieved by incorporating the sucrose fatty acid esters of the invention into the dough formulations. Specifically, one embodiment of the present invention relates to a pastry dough comprising:      a) from about 20% to about 50% of a fat product comprising: i) from about 10% to about 100% sucrose fatty acid esters having at least 4 fatty acid ester groups, wherein each fatty acid group has from about 8 to about 22 carbon atoms; and ii) from about 0% to about 90% other fat ingredients selected from the group consisting of shortenings, margarines, fats, oils, and mixtures thereof; iii) wherein the fat product has a penetration between about 120 mm/10 and about 350 mm/10 at 70°F (21°C); and iv) wherein the fat product has a yield point between about 500 dynes/cm2 and about 10,000 dynes/cm2 at 70°F (21°C); b) from about 30% to about 70% flour; and c) from about 5% to about 30% of a liquid selected from the group consisting of water, milk, and mixtures thereof; said pastry dough being made by a process employing a low shear method of mixing. Biscuit, shortbread and shortcake doughs are similarly comprised: biscuit doughs - 5-30% fat product, 35-60% flour, 25-45% water and/or milk; shortbread doughs - 25-55% fat product, 35-60% flour, 0-20% water and/or milk; shortcake doughs - 5-30% fat product, 30-65% flour, 20-50% water and/or milk.
Patent CA-1304450-C (CA)
Title: Circuit for recovering the carrier in digital transmission systems
Inventor: SARI HIKMET
IPC: H04L27/227
Filed: 1988-09-22
Granted: 1992-06-30
Abstract: PHF 87.573                                       1  September 1988 ABSTRACT:            "Circuit for recovering the carrier of digital transmission systems".                 A circuit for recovering the carrier of a digitally modulated wave comprising a voltage-controlled oscillator (17) that is controlled by an error signal .epsilon.(.PHI.) in order to adjust the phase of the oscillator, the modulated wave being introduced into two channels, the one in phase (10) and the other in quadrature (20) with the carrier, the two channels being joined together by a phase comparator arrangement (25) which produces the error signal and a sampling clock (H1). The phase comparator arrangement (25) alternately operates as a phase detector and as a frequency detector and therefore comprises means for selecting received signal points with the aid of selection zones formed by ring segments, situated around certain states of the signal constellation. The signals of the in-phase and quadrature channels are used to address a memory (26) that contains the information belonging to or not belonging to the signal point received in one of the selected zones as well as the amplitude and the error sign that relate thereto. In addition, the phase comparator arrangement (25) comprises means (28, 29) for generating the sampling clock (H1) which, in the acquisition mode (off-hook), validates the basic clock H only for these selected zones and, in the permanent mode (on-hook), validates all the edges of the clock H for forming the sampling clock.
Patent CA-1340785-C (CA)
Title: Platelet activating factor antagonists
Inventor: RICHARDSON KENNETH
IPC: C07D401/14
Filed: 1988-09-28
Granted: 1999-10-12
Abstract: Platelet activating factor antagonists of formula (I):   (see formula I) wherein R is phenyl or phenyl substituted by one or more substituents selected from nitro, halo, C1-C4 alkyl, C1-C4 alkoxy, aryl(C1-C4)alkoxy, fluoro(C1-C4)alkoxy, C1-C4 alkylthio, C1-C4 alkylsulphonyl, hydroxy, trifluoromethyl and cyano, or is phenyl fused to a dioxole ring;      R1 and R2 are each independently H or C1-C6 alkyl, or R1 and R2 together complete a pyrrolidinyl, piperidino, morpholino, piperazinyl, N-(C1-C4 alkyl)piperazinyl or N-(C2-C4 alkanoyl)-piperazinyl group; or R2 is H or C1-C4 alkyl and R1 is CN, C3-C7 cycloalkyl, aryl, heteroaryl or a C1-C4 alkyl group substituted by one or more substituents selected from C3-C7 cycloalkyl, C1-C4 alkoxycarbonyl, aryl or heteroaryl;      Z is selected from C1-C6 alkoxy, aryl(C1-C4)alkoxy, hydroxy, and -NR4R5 wherein each of R4 and R5 is independently H or C1-C6 alkyl, or R4 and R5 together complete a pyrrolidinyl, piperidino, morpholino, piperazinyl or N-(C1-C4 alkyl)piperazinyl group;      Y is 1,4 phenylene or pyridine-2,5-diyl, and X is a 5 or 6 membered aromatic heterocyclic group containing one or more nitrogen atoms in its ring; which ring may be fused to a benzene ring or to a further 5- or 6-membered aromatic heterocyclic ring containing one or more nitrogen atoms, at least one of said heterocyclic rings optionally also containing an oxygen or sulphur atom, and being optionally substituted with one or more substituents selected from C1-C4 alkyl, C1-C4 alkoxy, halo, CF3 and CN; and their pharmaceutically acceptable salts.
Patent CA-1321723-C (CA)
Title: Fiber optic coil cord
Inventor: HOLLAND JOHN W
IPC: G02B6/44
Filed: 1988-10-07
Granted: 1993-08-31
Abstract: FIBER OPTIC COIL CORD                 Abstract of the Invention A coiled fiber optic cable comprises an optical fiber of glass or plastic that is disposed loosely within a buffer tube.   The buffer tube in turn is surrounded with a plastic strength member that is then jacketed in a thermoplastic cover.   The assembled cable is wound on a mandrel  in  a  closed helix and is heated to set the helical shape in the plastic member.  After cooling, the spiral  may  be  reverse  wound  to  set  the  coiled configuration.   The optical fiber may be single-mode or multimode and it may be graded-index clad or step-index clad.  The coiled cable can be terminated to interconnect optical components.   If the optical fiber is a single-mode  fiber  that  is not  treated to  reduce  internal reflections when it is bent, then the attenuation of the optical signal will be found to be an inverse function of the  extension  of  the  coiled  cable.    This  makes  it possible to use coiled single-mode fiber as an optical attenuator in a mechanical apparatus that supports the coiled  fiber and  provides  repeatable  positioning  to obtain a predetermined value of optical attenuation.
Patent CA-1295031-C (CA)
Title: Uv scanning system for centrifuge
Inventor: GIEBELER ROBERT
IPC: G01N15/04
Filed: 1988-10-13
Granted: 1992-01-28
Abstract: UV SCANNING SYSTEM FOR CENTRIFUGE                  ABSTRACT OF THE DISCLOSURE         A centrifuge sample is optically scanned dur-ing centrifuging.  The sample, placed in a centrifuge rotor having a cell with top and bottom windows, is spun until stratification and discrete layering occurs within the sample.  Such layering occurs on layers that are precisely normal to the radius of the centrifuge at the point of sample and parallel to the spin axis of the centrifuge.  A slit scanner having a slit normal to the sample plane transverses the width of the sample below the cell to detect with precision the precise location of the strata in the cell.         A light source is reflected by a toroidal mirror having two radius of curvature. One radius of curvature is selected to collimate rays of light paral-lel to the layer of the sample.  The mirror is ruled with respect to the other radius of curvature to chro-matically classify light to preselect band width.  Ro-tation of the mirror preserved collimation hut enables selected scanning light frequency.
Patent CA-1320505-C (CA)
Inventor: BOUDOT JEAN E
IPC: C03C3/093
Filed: 1988-10-19
Granted: 1993-07-20
Abstract: Abstract of the Disclosure This invention is related to glasses particularly useful in the fabrication of multifocal lenses for ophthalmic applications.  The inventive glasses exhibit a refractive index between 1.599-1.602, an Abbe number between 40.5-41.5, a density between 2.64-2.66 g/cm3, a transmission of visible radiation at 400 nm through a thickness of 10 mm greater than 83%, a softening point between 670°-680°C, a birefringence upon sealing, measured as described, between -150 and +150 nm/cm, and consist essentially, expressed in terms of weight percent on the oxide basis, of:      SiO2    52-57           K2O   11.0-16.0 B2O3     2.5-7.0          CaO      2-3.5 Al2O3      0-1            ZrO2     1-1.5 Li2O     0.3-0.8          TiO2  15.0-16.2 Na2O     5.4-8.2          AS2O3  0.1-0.4 with the condition that M=69-72 where M=? [ 760x%Li2O+270x%Na2O+170x%K2O+185x%CaO+130x%TiO2].
Patent CA-1318509-C (CA)
Title: Multiple venturi tube gas fuel injector for catalytic  combustor
Inventor: BEEBE KENNETH W
IPC: F23R3/28
Filed: 1988-10-20
Granted: 1993-06-01
Abstract: MULTIPLE VENTURI TUBE GAS FUEL INJECTOR         FOR CATALYTIC COMBUSTOR Abstract of the Disclosure A fuel gas injector for a gas turbine engine employs a plurality of closely spaced parallel venturi tubes disposed in a pair of spaced-apart header plates.  The venturi tubes are brazed to the header plates and the perimeters of the header plates are sealed to form a plenum into which pressurized gaseous fuel is supplied.  Orifices lead from the plenum to throats of the venturi tubes thereby injecting the gaseous fuel at right angles into the high velocity air stream existing at the throats of the venturi tubes.  High shear is imposed on the injected fuel for providing complete mixing with the air.  The high air velocity in the throats of the venturi tubes avoids flashback and flameholding.  The combined flow from the plurality of venturi tubes mixes downstream thereof to provide a uniform velocity and fuel-air mixture across the flow field.  This flow field is suitable for use in a catalyst bed which may be disposed downstream of the venturi tubes.
Patent CA-1331376-C (CA)
Title: Catalyst systems for olefin disproportionation and process using such systems
Inventor: JANSSEN FRANK J
IPC: B01J27/053
Filed: 1988-10-25
Granted: 1994-08-09
Abstract: A B S T R A C T        CATALYST SYSTEMS FOR OLEFIN DISPROPORTIONATION AND                    PROCESS USING SUCH SYSTEMS   Composition suitable as catalyst system for the disproportionation of olefins, containing molybdenum oxide supported on alumina, which composition can be obtained by comulling of at least a gamma-alumina providing agent with a sulphur containing compound and/or a phosphorous containing compound and optionally molybdenum oxide(s) or a molybdenum oxide(s) providing agent, to a homogeneous extrudable mass, extrusion of the mass and division into small particles, drying of the particles followed by calclnation at a temperature in the range of from 400°C to 800°C, impregnating the obtained particles with a solution of a molybdenum oxide(s) providing agent and optionally with a solution of a sulphur containing compound and optionally a solution of a phosphorous containing compound, drying of the impregnated particles followed by calcination at a temperature in the range of from 400-800°C, optionally followed by an additional impregnating step as mentioned hereinbefore, the amounts of molybdenum-, sulphur- and phosphorous containing compounds being selected such that the total final content of molybdenum is in the range of from 5 to 13% by weight, the final content of sulphur containing compound is up to 10% by weight and the final content of the phosphorous containing compound is up to 10% by weight, calculated on the weight of the total final ...../2 composition.  Process for the preparation of the composition, and process for the disproportionation using the composition as catalyst.
Patent CA-1337063-C (CA)
Inventor: WIMMERS JAMES E
IPC: A47J31/00
Filed: 1988-12-14
Granted: 1995-09-19
Abstract: A method and apparatus for producing and dispensing a reconstituted coffee beverage having a thick layer of foamed coffee on its surface, similar in appearance to an espresso coffee beverage. A measured amount of dehy-drated coffee concentrate, such as spray dried instant coffee, and a small amount of cold water are combined, with vigorous agitation in a cooled mixing chamber to form a cold, foamed coffee concentrate. Upon formation of the foamed concentrate, a controlled amount of hot water is introduced into the mixing chamber to dilute the foamed concentrate while substantially retaining the foamed structure to thereby provide a liquid reconsti-tuted coffee fraction of a desired concentration, and a foamed coffee fraction of similar concentration. The resulting beverage is then discharged from the mixing chamber into a cup, with the foamed coffee fraction resting on the surface of the liquid coffee fraction to provide a hot coffee beverage having a thick layer of stable foam on the surface of the beverage. A timer mechanism is provided to sequentially control the in-troduction of dehydrated coffee, cold water and hot wa-ter into the mixing chamber, and the discharge of the reconstituted beverage from the chamber.