baber/WOPTO huggingface dataset:
Patent CA-2123757-A1 (CA)
Title: Method for making optical waveguide couplers with low wavelength sensitivity and couplers thereby produced
Inventor: GONTHIER FRANCOIS
IPC: G02B6/28
Filed: 1994-05-17
Abstract: A method is provided for making an optical waveguide coupler with low wavelength sensitivity, such as an optical fiber coupler, which comprises forming a tapered coupler from an array of waveguides or a bundle of individual optical fibers, the tapering being done so as to produce an asymmetric longitudinal profile such as to flatten the wavelength response in the coupler and thereby reduce its wavelength sensitivity within a predetermined wavelength range. An optical waveguide coupler with low wavelength sensitivity is also included within the scope of this invention. Wavelength insensitive couplers of 2x2 and 1xN configuration, are of particular interest.
Patent CA-2126116-A1 (CA)
Title: Blended charge for steel production
Inventor: DOROFEEV GENRIH A
IPC: C21C5/52
Filed: 1994-06-17
Abstract: BLENDED CHARGE FOR STEEL PRODUCTION                 ABSTRACT OF THE DISCLOSURE           A blended charge  for use as a decarburizing addition to a steelmaking batch comprises 50 to 95% by weight of an iron-carbon alloy and 5 to 50% by weight oxide material.  The oxide material includes free metal oxides in excess of 0.25% by weight having an affinity for oxygen less than or equal to carbon in the molten steel.
Patent CA-2127542-A1 (CA)
Title: Methods for using (2-imidazolin-2-ylamino) quinoxaline derivatives
Inventor: GLUCHOWSKI CHARLES
IPC: A61P27/02
Filed: 1993-01-12
Abstract: A method of treating a mammal comprises administering to a mammal an effective amount to provide a desired therapeutic effect in the mammal of a compound selected from the group consisting of those having formula (1), pharmaceutically acceptable acid addition salts thereof and mixtures thereof, wherein R1 and R4 are independently selected from the group consisting of H and alkyl radicals having 1 to 4 carbon atoms; the R2S are independently selected from H or alkyl radicals having 1 to 4 carbon atoms or are, together, oxo; the R3S are independently selected from H or alkyl radicals having 1 to 4 carbon atoms or are, together, oxo; the 2-imidazolin-2-ylamino group may be in any of the 5-, 6-, 7- or 8-positions of the quinoxaline nucleus; and R5, R6 and R7 each is located in one of the remaining 5-, 6-, 7-or 8-positions of the quinoxaline nucleus and is independently selected from the group consisting of Cl, Br, H and alkyl, radicals having 1 to 3 carbon atoms. Such compounds, when administered to a mammal, provide desired therapeutic effects, such as reduction in peripheral pain, anesthetization of the central nervous system, constriction of one or more blood vessels, reduction in or prevention of at least one effect of ischemia, decongestion of one or more nasal passages, and reduction of at least one effect of an inflammatory disorder.
Patent CA-2128571-A1 (CA)
Title: Knock-down, returnable, high load capacity plastic cable reel
Inventor: PICTON VALENTINE L
IPC: B65H75/50
Filed: 1994-07-21
Abstract: ABSTRACT OF THE DISCLOSURE    A cable reel comprising a drum and side flanges molded of plastic is of sufficient size, strength and rigidity to carry loads in excess of 10,000 lbs. without significant distortion or flattening.  The required strength and rigidity are achieved by molding the side flanges so that they tend to assume a dished configuration that is substantially flattened when the side flanges are bolted to the ends of the drum, thereby prestressing the side flanges.  The drum includes end flanges that are bent outwardly by axially-extending tie rods forced between the end flanges after the drum plastic is substantially completely cured, thereby tensioning the drum in the axial direction.  The tie rods have threaded ends for receiving the bolts that secure the side flanges to the drum and serve to reinforce the final structure.  During curing of each reel component while it is still in the mold, shrinkage of the component is resisted so as to increase the strength of the component.  The drum comprises at least two sections and the reel may be easily disassembled and the parts stacked for storage and shipment as a compact package.  The reel components are preferably molded of recycled plastic comprising a mixture of high density and low density polyethylene derived from post-consumer plastic waste.
Patent CA-2128836-A1 (CA)
Title: A process for preparing laminates, and laminates so prepared
Inventor: SLINCKX MARTINE M C P
IPC: B29C44/06
Filed: 1994-07-26
Abstract: A B S T R A C T            A PROCESS FOR PREPARING LAMINATES, AND LAMINATES SO PREPARED      The invention provides a process for preparing laminates of at least one layer of a polyolefin and at least one layer of polyurethane and/or polyisocyanurate, comprising applying an interpolymer coating on at least one side of said layer of the polyolefin, and preparing said layer of the polyurethane and/or polyisocyanurate on top of said interpolymer coating, wherein the interpolymer coating is composed of an interpolymer prepared by bulk, solution, suspension or emulsion polymerisation of a monomer mixture that has an average solubility parameter .delta. of less than 8.1, preferably less than 8.05.
Patent CA-2131566-A1 (CA)
Inventor: BINDER JOHN
IPC: F16B15/00
Filed: 1994-09-07
Abstract: A method and apparatus for forming a head having a controlled predetermined shape on an end of an elongate member, such as a wire, which is formed into a fastener where an end portion of the wire is secured in a predetermined position and axially compressed to radially, outwardly expand a predetermined amount of wire material to form the head on the wire and where material flow is directed during axial compression to provide the controlled predetermined shape of the head.
Patent CA-2131951-A1 (CA)
Inventor: WIECZOREK JOSEPH P
IPC: B60R5/04
Filed: 1994-09-13
Abstract: A security shade for the cargo area of a motor vehicle. The security shade includes a flexible shade panel mounted to a roller tube having at least one support subassembly mounted to its ends. The subassembly further includes a housing and a coupling portion which couples the housing to the roller tube, a rotational biasing spring which rotationally biases the coupling portion relative to said housing and a mechanism for mounting the security shade within the vehicle.
Patent CA-2132444-A1 (CA)
Title: Manufacture of net shaped metal ceramic composite engineering components by self-propagating synthesis
Inventor: SEKHAR JAINAGESH A
IPC: C22C1/05
Filed: 1993-01-27
Abstract: The present invention relates to a method of making metal ceramic composites and the metal ceramic compositions and articles made therefrom, especially net-shaped articles having a wide variety of applications. The present invention involves preparing a combustion synthesis mixture comprising at least one substance containing a combustible mixture of powders and at least one low-melting metal, and carrying out a combustion synthesis therewith. Ceramic or metallic reinforcements may be incorporated in the combustion synthesis. The present invention allows the control of porosity in the resultant composite compositions and can result in composites having high toughness characteristics.
Patent CA-2132666-A1 (CA)
Title: Apparatus and method for counting bingo cards
Inventor: WALKER ANGELA L
IPC: A63F9/24
Filed: 1994-09-22
Abstract: An apparatus for determining at least one dimension of a strip of bingo cards has a plurality of sensors located on the surface of a base unit. The dimension of the strip, i.e. the number of cards in that direction, corresponds to the number of sensors activated. Advantageously, there are two rows of sensors extending in two directions from a corner. An activation sensor and a bar code reader can then be provided in the corner for reading the bar code of a single card, and the layout of other cards can then have a known mathematical relationship to the card in that corner. This apparatus can be used in conjunction with a method for controlling and monitoring the stocking and distribution of bingo cards, to enable accurate records to be maintained and to prevent fraud occurring.
Patent CA-2133294-A1 (CA)
Title: Fixed cellular communications system
Inventor: GARCIA AGUILERA JOSE M
IPC: H04B7/26
Filed: 1994-09-29
Abstract: SUMMARY            Fixed cellular communications system Consisting of a cellular mobile communications network (CS) that provides coverage of voice and/or data communications services to terminals located in a set of cells in any one of which there can be at least one fixed cellular terminal (4) that communicates, on one side, by radio, with one of the base stations (3) of the cellular mobile communications network (CS) and on the other side, by cable, with at least one base station (6) of a cordless communications system (WS) through control and interface means that perform the adaptation between the two systems to provide communications services to a number of cordless terminals (7).       When the cellular communication system (CS) makes use of time division multiple access technology, TDMA, for example GSM, one single radio transceiver is connected to a transceiver control means to manage the radio channel allocations, so that it can support simultaneously as many communications channels as possible without there being temporal overlapping of channels.
Patent CA-2133390-A1 (CA)
Title: Soft strong towel and tissue paper
Inventor: ORIARAN T PHILIPS
IPC: D21H21/24
Filed: 1994-09-30
Abstract: Disclosed is a method for producing an absorbent creped cellulosic sheet having a high level of surface-perceived softness that comprises continuously forming a web of cellulosic papermaking fibers, adhering said web to a thermal drying means, treating said adhered web with an amido amine salt derived from a partially acid-neutralized amine, and creping said treated web from said thermal drying means.
Patent CA-2133526-A1 (CA)
Title: Catalyst, its production and its use for the gas-phase polymerization of conjugated dienes
Inventor: SYLVESTER GERD
IPC: C08F2/34
Filed: 1994-10-03
Abstract: A CATALYST, ITS PRODUCTION AND ITS USE FOR THE GAS-PHASE POLYMERIZATION OF CONJUGATED DIENES                 A b s t r a c t Catalysts consisting of A)   an alcoholate of the rare earths, a carboxylate of the rare earths, a complex compound of the rare earths with diketones and/or an addition compound of the halides of the rare earths with an oxygen or nitrogen donor compound, B)   an aluminium trialkyl, a dialkyl aluminium hydride and/or an alumoxane, C)   another Lewis acid and D)   an inert, particulate inorganic solid with a speci-fic surface of greater than 10 m2/g (BET) and a pore volume of 0,3 to 15 ml/g are eminently suitable for the polymerization of con-jugated dienes, more particularly butadiene, in the gas phase.
Patent CA-2136800-A1 (CA)
Title: Intermediate thickness twin slab caster and inline hot strip and plate line
Inventor: THOMAS JOHN E
IPC: B21B1/34
Filed: 1994-11-28
Abstract: A method and apparatus of making coiled plate, sheet in coiled form or discrete plate.  The apparatus is an intermediate thickness slab caster and inline hot strip and plate line.  The apparatus includes a continuous strip caster selectively forming a single or a pair of parallel strands of between 3.5 inches (8.9 cm) and 5.5 inches (14 cm)  thick,  preferably 5  inches  (12.7 cm);  a shear for cutting each strand into a slab of desired length; a slab table including a slab takeoff operable transverse of the conveyor table; a slab collection and storage area adjacent to the slab conveyor table adapted to receive slab from the slab takeoff; a reheat furnace having an entry inline with both the slab conveyor table and the slab collection and storage area for receiving slabs from either; a feed and run back table at the exit of the reheat furnace; a pair of tandem hot reversing mills for reducing the slab to a coiling thickness in a minimum number of flat passes; a pair of coiler furnaces located on opposite sides of the tandem hot reversing mills; and a finishing line downstream of the pair of coiler furnaces.
Patent CA-2136943-A1 (CA)
Title: Installation for making water potable with submerged filtering membranes
Inventor: COTE PIERRE
IPC: B01D63/04
Filed: 1994-11-29
Abstract: A water-treatment installation, notably with a view to making water potable, wherein said installation includes:   a reactor demarcating at least one treatment chamber comprising means to convey the water to be treated into said chamber, means for the removal of the floated pollutants and means for the removal of the decanted pollutants ; - a plurality of filtration membranes laid out within said chamber and designed to be submerged in the water to be treated ; - means to demarcate a filtration zone around each of said membranes ; - carrying and circulation means enabling the guiding of a current of water to be treated in said filtration zone along a preferred direction, said carrying and circulation means including ozone-injection means ; - means to recover the permeate at the outlet of said filtration membranes.
Patent CA-2138803-A1 (CA)
Title: Correlation signal processing
Inventor: BORER TIMOTHY J
IPC: H04N7/26
Filed: 1993-07-05
Abstract: A method of correlation signal processing particularly for the processing of correlation surfaces which are utilised in estimating the motion within sequences of video pictures, involves matching an assumed quadratic surface in the region of a stationary value.
Patent CA-2139162-A1 (CA)
Title: Apparatus for removing the upper waste layer resulting in cutting plastic porous concrete blocks or the like
Inventor: HARTMANN WILFRIED
IPC: B26D7/18
Filed: 1994-12-28
Abstract: The apparatus for removing the waste layer arising in cutting porous concrete blocks comprises a beam (1) which extends above the porous concrete block in itslongitudinal direction and can be raised and lowered, and at least two horizontal support frames (2, 2') mounted thereon and movable in height, which are arrangedin pairs opposite one another to the two sides of a vertical central plane (M) of the beam (1) and beneath the same. A plurality of spikes (5, 5') which can be stuck into the waste layer are provided on the underside of each support frame (2, 2') and are aligned with their points facing down at an angle. All spikes (5) of the first support frame (2) of each frame pair (P) are parallel to one another and inclined at an acute angle (µ) to the longitudinal central plane (M) and all spikes (5') of the opposite second support frame (2') are parallel to one another and inclined at an opposite acute angle (µ1) to the longitudinal central plane (M). Each support frame (2, 2') is movable relative to the beam in the direction (B or C) of its spikes (5, 5').
Patent CA-2140988-A1 (CA)
Title: Saccharomyces-specific antigens and antibodies, their preparation and use
Inventor: BROEKER MICHAEL
IPC: C07K16/00
Filed: 1995-01-24
Abstract: The invention relates to antigens which are specific for Saccharomyces cerevisiae,  Saccharomyces bayanus,  Sac-charomyces paradoxus and Saccharomyces pastorianus, and to antibodies directed against them. These antigens and antibodies can be employed for identifying and quantify-ing the said Saccharomyces species.
Patent CA-2142908-A1 (CA)
Title: Cover device for subsequent mounting on softbound books
Inventor: LAURSDAHL HELLE
IPC: B42D3/12
Filed: 1993-08-16
Abstract: By a cover device (6, 30) for subsequent mounting on a book, in particular a large paperback (2), and comprising a first cover part (8, 32) adapted to be connected to a cover side member of the book (2), a connecting part (10, 36) adapted to cover a section of a narrow side (20) of the book (2), preferably the narrow side opposite the back of the book, and a second cover part (12, 40) adapted to be releasably connected to a second cover side member of the book (2), said First cover part (8, 32) at a side is provided with fastening means (16, 34) adapted to secure said first cover part (8, 32) to a cover side member of the book (2), that the connecting part (10, 36) preferably is provided with folding lines or folding recesses (22, 38), which stretch parallel with said narrow side (20) of the book, and that said second cover part (12, 40) is provided with connecting means (24, 26, 42) being adapt-ed to connect said second cover part (12, 40) to said second cover side member of the book, said cover device being manufactured from material, which is capable of taking up or transmitting shearing forces.
Patent CA-2143851-A1 (CA)
Title: Syringe needle disposal apparatus
Inventor: ECKELS JOHN F
IPC: A61M5/31
Filed: 1993-09-03
Abstract: The method of disposing a hypodermic syringe needle (15) and asso-ciated tip (15a) and hub (20), the syringe having a tubular body (28) to which the hub is removably attached, includes providing an upright, protec-tive receptacle (10) having a downward entrance, and providing a trap door (31) at the entrance; inserting the needle and hub into the receptacle via the entrance and past the trap door; and allowing the trap door to thus block withdrawal of the hub and needle from the receptacle in response to the in-sertion; whereby the received needle and hub are contained in the recepta-cle for disposal; and providing penetrable sealant (16) in the receptacle in a position to seal off the inserted needle tip from external contamination.
Patent CA-2146688-A1 (CA)
Title: Microphone/loudspeakers and systems using multiple microphone/loudspeakers
Inventor: CIURPITA GREGORY JR
IPC: H04R1/40
Filed: 1995-04-10
Abstract: MICROPHONE/LOUDSPEAKERS AND SYSTEMS USING MULTIPLE MICROPHONE/LOUDSPEAKERS            ABSTRACT     Microphone/loudspeakers  include  a  microphone arrangement and a loudspeaker and means to operate as micro-phone/loudspeakers in the quiescent mode and to shift to a speakerphone mode in response to a battery voltage from a telephone  line.  In the quiescent mode  the microphone arrangement  and  the  loudspeaker  operate  substantially independent of each other while in the speakerphone mode they interact on the basis of  their respective signal strengths.  In a system, the microphone/loudspeakers connect to other microphone/loudspeakers so that the microphone arrangement of one microphone/loudspeaker couples in tandem to the microphone arrangement of other microphone/loud-speakers, and the loudspeaker of one microphone/loudspeaker couples in tandem to loudspeaker of other microphone/loud-speakers.
Patent CA-2147483-A1 (CA)
Inventor: SIN KEE VAN
IPC: G01N27/49
Filed: 1993-10-20
Abstract: A gaseous oxygen electrochemical sensing system (36) sustains inter-electrode ionic conductivity by the use of a combination of a hydrophilic coating layer (50) on a gas-permeable barrier or separation membrane (52) to supply sufficient moisture to the electrolyte (54) of an electrode system to activate the sensor and sustain proper operation.
Patent CA-2149576-A1 (CA)
Inventor: HARADA HIDEOMI
IPC: F04D27/02
Filed: 1995-05-17
Abstract: A surge detection device for quick and accurate detec-tion of surge is presented and its application to a turbomachinery is demonstrated.  The turbomachinery having variable-angle diffuser vanes operates by regulating the angle of the diffuser vanes on the basis of the sensors disposed on the pump body or pipes of the surge detection device.  The onset of  surge can be forecast by measuring the fluctuations in the operating parameter(s) over a measuring  interval of time computed on the basis of the operating characteristics of the impeller of the turbomachinery.  The onset of surge is prevented by adjusting the angle of the diffuser vanes in accordance with the sampling duration for parameter fluctua-tions over the measuring interval of time, and by adjusting the diffuser vanes to maintain the operating parameter fluctu-ations of the fluid  machinery below a threshold value of the turbomachinery derived from the design flow rate of the tur-bomachinery.  Application of the surge detection device in combination with fluid flow guide vanes and blades of the turbomachinery enables full utilization of the potential capability of the turbomachinery.
Patent CA-2151594-A1 (CA)
Title: Exhaust gas recirculation in a two stroke engine
Inventor: BELL GREGORY BRUCE
IPC: F02M26/40
Filed: 1994-01-04
Abstract: A method of operating a two stroke cycle crankcase scavenged internal combustion engine, comprising selectively delivering exhaust gas from a location of the engine exhaust port to the engine crankcase to be delivered together with air in the crankcase to the engine combustion chamber. The quantity of exhaust gas delivered to the crankcase each engine cycle is controlled according with engine operating conditions and the rate of supply of exhaust gas to the crankcase is controlled relative to engine operating conditions such as by an ECU managed valve that responds to engine operating conditions such as load, speed and temperature. The exhaust gas is admitted to the crankcase during a period when the pressure in the crankcase is below that of the available exhaust gas.
Patent CA-2152150-A1 (CA)
Title: Process for insulating pipes
Inventor: EISEN NORBERT
IPC: F16L59/14
Filed: 1995-06-19
Abstract: A process for insulating pipes comprises applying at least one layer of a polyisocyanurate plastic and then at least one layer of rigid polyurethane foam to a steel pipe. The foam is covered with an outer layer.
Patent CA-2152241-A1 (CA)
Title: Combination of materials for mercury-dispensing devices, method of preparation and devices thus obtained
Inventor: SCHIABEL ANTONIO
IPC: H01J7/10
Filed: 1995-06-20
Abstract: A mercury-dispensing combination is disclosed consisting of a mercury-dispensing intermetallic compound A with Hg, including mercury and a second metal selected among titanium, zirconium and mixtures thereof; a promoting alloy or intermetallic compound B including copper, silicium and possibly a third metal selected among the transition elements.      There is also disclosed a mercury-dispensing device containing said combination of materials A and B, possibly with a getter material C selected among Ti, Zr, Ta, Nb, V and mixtures thereof, or alloys of these metals with Ni, Fe or Al, preferably in the form of powders compressed as a tablet, or contained in a ring-shaped metallic support, or rolled on the surfaces of a metallic strip. There is also disclosed a process for introducing mercury, into the electron tubes where it is required, by making use of the above-mentioned mercury-dispensing devices.
Patent CA-2152884-A1 (CA)
Title: Herbicidal compositions containing 2-benzyloxypyrimidine derivatives, processes for producing the derivatives and 2-benzyloxypyrimidine derivatives
Inventor: KUBOTA YOSHIKAZU
IPC: C07D239/56
Filed: 1995-06-28
Abstract: A herbicidal composition comprising a herbicidally effective amount of a 2-benzyloxypyrimidine derivative represented by the formula (I):                      (I) wherein R1 and R2 are each independently H, a halogen, hydroxyl, C1-C4 alkyl, C1-C4 haloalkyl, C3-C5 alkenyl, C3-C5 alkynyl, C1-C4 alkoxy, C1-C4 haloalkoxy, C3-C5 alkenyloxy, C3-C5 alkynyloxy, C1-C4 alkylthio, or phenyl; n is an integer of 0 to 5; and each X which may be identical or different if n is greater than 1, is a halogen, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 alkoxy, C1-C4 alkylthio, C7-C9 aralkyloxy, phenyl, hydroxymethyl, hydroxycarbonyl, C1-C4 alkoxycarbonyl, or nitro, and an adjuvant.