baber/WOPTO huggingface dataset:
Patent CA-2046310-A1 (CA)
Inventor: GOLE DILIP J
IPC: A23L27/00
Filed: 1990-12-11
Abstract: A method is disclosed for preparing pharmaceutical and other matrix systems that comprises solidifying a matrix composi-tion dissolved or dispersed in a first solvent and subsequently contacting the solidified matrix with a second solvent that is sub-stantially miscible with the first solvent at a temperature lower than the solidification point of the first solvent, the matrix compo-nents being substantially insoluble in the second solvent, whereby the first solvent is substantially removed resulting in a usable matrix:
Patent CA-2047860-A1 (CA)
Inventor: BERT JEFFREY
IPC: B05B7/08
Filed: 1991-07-25
Abstract: A plural component external mix air-assisted/airless spray gun has an airless tip from which resin is emitted in a fan-shaped spray and an injector nozzle for directing an unatomized stream of catalyst into the resin adjacent to the airless tip. The catalyst injector nozzle is built into an ear of an air cap and the air cap is keyed to the airless tip to guarantee the positional relationship between the injector nozzle and the airless tip. Injecting a stream of unatomized catalyst into the resin stream immediately downstream from the airless tip provides thorough mixing of the catalyst into the resin, increased utilization of the catalyst and decreased emissions of catalyst fumes.
Patent CA-2051847-A1 (CA)
Title: Dispensing apparatus
Inventor: LEE GRAHAM S
IPC: A61M15/00
Filed: 1991-09-19
Abstract: ABSTRACT                      "DISPENSING APPARATUS"     An inhaler for medical aerosols  includes a flow sensor 32 in the form of a piston which is movable against a spring bias 35 in response to inhalation.   Movement of the piston unseats a valve member 30 allowing a pressurised dose to be released through a nozzle 67.   A uniform impedance to the flow of air is provided throughout the movement of the piston to avoid any discontinuity in the flow.    The apparatus is particularly suited for inhalers used in the treatment of asthma.
Patent CA-2052236-A1 (CA)
Inventor: HOLSTEN JOHN R
IPC: D06P1/649
Filed: 1991-09-25
Abstract: A method for dyeing fibrous material is provided.  The method includes contacting a fibrous material with a carrier and a dye soluble or dispersed with the carrier in a dyebath.  The carrier comprises an N-substituted aromatic carbonamide or an N,N-disubstituted aromatic carbonamide or mixture thereof.          The carrier system of the present can be advantageously utilized for improving dye and flame resistant properties of difficult to dye fibers such as aromatic polyamide fibers, polybenzimidazole fibers and aromatic polyimide fibers.
Patent CA-2052370-A1 (CA)
Title: In-vehicle receiver for falilitating motor vehicle navigation
Inventor: BABSKY JEAN
IPC: H04W16/32
Filed: 1991-09-27
Abstract: The receiver is intended to receive, via transmitters and a special broadcast channel, coded messages containing at least locations of problems of a finite series of locations placed in memory (11) in the receiver and comprising means (32) for decoding of messages and means (8-12, 2) of restoration of the latter into a form accessible to a motorist. The receiver also comprises a memory (11) for storage of pixels representing road maps, means (8) of display of portions of these maps on a visual display terminal (2) and means (8) of graphical restoration of the locations of problems from the messages on the terminal (2). When a traffic problem produces its effects on a section of road between two points, this section is shown up on a portion of a displayed map by substitution, for the pixels of the section, of pixels of a particular colour. <IMAGE>
Patent CA-2053134-A1 (CA)
Inventor: BRAUN EUGENE R
IPC: F16H61/70
Filed: 1991-10-10
Abstract: A control (68) for controlling the input section (12) of a manually shifted compound synchronized transmission (10) of the type comprising the splitter type input section (12) connected in series with a manually shifted synchronized multi-speed main transmission section (14) is provided.  The control is effective upon sensing disengagement of the master clutch (20) and nonengagement of the main transmission section (14) to cause the input section (12) to be shifted to and maintained in the not engaged (N) position thereof and thereafter to cause the input section to be shifted to the preselected ratio thereof (H or L).  The control is also effective with the main transmission section in the disengaged position upon engagement of the master clutch to momentarily cause the input section to be shifted to one of the engaged ratios thereof allowing the synchronized jaw clutches of the main transmission section to be engaged in start-from-stop operations.
Patent CA-2053212-A1 (CA)
Title: Optical fibers with preset stimulated backward brillouin scattering thresholds
Inventor: JEN CHENG-KUEI
IPC: G02B6/02
Filed: 1991-10-10
Abstract: ABSTRACT          Optical fibers comprising a core region surround-ing by  a cladding region,   and having a high stimulated backward Brillouin scattering threshold, PTH, for telecommu-nication transmission line application,   or a low PTH for distributor sensor application are disclosed. By controlling the longitudinal and shear acoustic wave velocity profiles of an optical fiber such that VL,core > 1.03  VL,cladding and VS,core> 1.03 VS,cladding,  where VL,core and VS,core are respectively  the  longitudinal and  shear  acoustic  wave velocities of the core region,  and VS,core and VS,cladding the longitudinal and shear acoustic wave velocities of the cladding region,  the optical fiber will have a PTH higher than 20 milliwatts.  For low PTH optical fibers,  that is, with a PTH lower than 1 milliwatt,   the longitudinal and shear acoustic wave velocity profiles of the fiber must be such that VL,core < 0.97 VL,cladding  and VS,core < 0.97 VS,cladding.  In both high and low PTH optical fibers,  the refractive index of the core region is higher than that of the cladding region for optical wave guidance.
Patent CA-2054695-A1 (CA)
Inventor: NAKAI FUMIO
IPC: C08L71/10
Filed: 1991-03-12
Abstract: A flame-retardant resin composition excellent in not only thermal stability but also thermal resistance, impact resistance, processability, and light resistance, which comprises 70 to 10 wt% of rubber-reinforced styrene resin, 20 to 85 wt% of polycarbonate resin, 5 to 35 wt% of a high-molecular halogen compound of general formula (I), and 0 to 10 wt% of an antimony compound wherein n represents an average degree of polymerization and is an integer of 4 to 30; R and R' represent each independently hydrogen, methyl, epoxypropyl, phenyl, halogenated phenyl, or (a), wherein m is an integer of 1 to 3; the bromine content is 45 wt% or above and the epoxy equivalent is 10,000 g/mol or above.
Patent CA-2054711-A1 (CA)
Title: Electrographic gravure printing system
Inventor: SWIDLER RONALD
IPC: G03G15/24
Filed: 1991-03-21
Abstract: An electrostatic image transferring system for producing a copy of an electrostatic image on a sheet (27) is disclosed which incorporates gravure printing techniques. A toner roller (20) disposed adjacent to an electrostatic image-bearing dielectric drum (5) is uniformly coated with a toner solution. The toner roller (20) is arranged to retain a toner image that is the reverse of the electrostatic image on the drum (5) when the electrostatic image is passed over a coated portion of the toner roller (20). The toner image may then be printed. In the preferred embodiment, the toner roller (20) takes the form of a gravure printing cylinder having a multiplicity of pits for receiving the toner solution. The described system is particularly well suited for using an aqueous toner carrier. In an alternative embodiment of the invention, a negative image is electrostatically formed on a gravure roller (20) and hardened to provide engraved gravure printing cylinders for conventional gravure printing operations.
Patent CA-2060775-A1 (CA)
Title: Corrosion inhibition in chelant solutions
Inventor: KREH ROBERT P
IPC: C02F5/08
Filed: 1992-02-06
Abstract: ABSTRACT OF THE INVENTION    The present invention is directed to a method of inhibiting corrosion in aqueous systems which employ amino acid chelants in concentrations which are corrosive to the metal surfaces in contact with the aqueous system. The method comprises adding to the system a corrosion inhibiting amount of 1-hydroxyethane-1,1-diphosphonic acid (HEDPA).  The corrosion inhibiting amount is generally in the range of from 0.5% to 10% on the basis of the concentraton of amino acid chelant in the system.
Patent CA-2061624-A1 (CA)
Title: Sub-micron device fabrication
Inventor: WHITE DONALD L
IPC: G03F1/30
Filed: 1992-02-21
Abstract: Fabrication of integrated circuits - electronic, photonic or hybrid - permits attainment of higher device density. Pattern delineation with smaller design rules than previously associated with delineating radiation of given wavelength is the consequence of use of phase masks. Compared with earlier used, binary valued phase masks, the multiple values of those on which this fabrication depends permits improved effectiveness in lessening of edge-smearing radiation of consequence (of diffraction-scattered delineating radiation at feature edges). Phase masking mayprovide, as well, for feature generation by interference, and for reduced intensity of unwanted image hot spots by diffraction.
Patent CA-2062621-A1 (CA)
Inventor: ARNOLD WOLFGANG
IPC: H04M11/06
Filed: 1992-03-10
Abstract: When a new protocol, e.g. the ETSI protocol T/S 46-30 in Europe, is introduced in all exchanges (VST), the ETSI protocol should be used in all terminals instead of the currently used protocol (e.g. the 1 TR6 in Germany) without hardware/software matching having to be carried out in situ. 
<??>For this purpose, the terminal is provided in advance with the two protocols (1TR6, ETSI-T/S 46-30) (e.g. in EEPROMs) and the current protocol is queried by means of a clear status enquiry, identifying the respective protocol, at the time of the conversion in the exchange, and the terminal is operated according to a status acknowledgement message identifying the protocol of the exchange. 
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Patent CA-2063661-A1 (CA)
Title: Laser liquid level gauge
Inventor: CULPEPPER WILLIAM X
IPC: G01F23/292
Filed: 1992-03-24
Abstract: Abstract of the Disclosure A laser liquid level gauge for detecting the level of the surface of a fluid in a vessel includes an optical unit in the top wall of the vessel and a remotely located control unit.  A laser diode at the control unit is amplitude modulated with a frequency tone to produce an incident beam which is carried by a fiber optic cable to the optical unit where it is directed through collimating optics to the fluid boundary.  Reflections of the incident beam from the fluid boundary are focused by receiver optics to a photodiode at the optical unit, the output of which is coupled by a cable to the control unit, which includes a phase detector for comparing the phase of the modulation tone with that of the detection signal to produce a level indicating signal for display.
Patent CA-2066290-A1 (CA)
Title: Convertible day bed
Inventor: WEBSTER TERENCE
IPC: A47C17/13
Filed: 1992-04-16
Abstract: Abstract:     A convertible day bed comprises a seat-rest/mattress portion supported on legs and is laterally slidingly positionable  thereon between  ones  of seating and bedding positions relative to a  co-operable  backrest portion.  The backrest portion is independently supported  in  superposed,   seat-rest/mattress-portion   bridging relation between  mutually longitudinally spaced  apart end panels located adjacent respective ones of longitudinally opposed ends of the  seat-rest/mattress portion,  in substantially laterally  non-interfering relation therewith.   When the day bed is arranged  in the seating position,  the backrest portion is bridgingly arranged over  the seat-rest/mattress portion with only an  ergonmetrically selected  seat rest width of the seat-rest/mattress portion  being slidingly  extended  laterally  outwardly  beyond  the  superposed bridging backrest portion.  When in the bedding position, however, an   ergonmetrically   selected  mattress  width  of   the   seat-rest/mattress  portion  is slidingly extended laterally  outwardly beyond the bridging back rest portion.
Patent CA-2067627-A1 (CA)
Title: Method for controlling fouling deposit formation in a liquid hydrocarbonaceous medium
Inventor: FORESTER DAVID R
IPC: C10G9/16
Filed: 1992-04-30
Abstract: Abstract Enaminones of polyalkenylsuccinimides are used as effective antifoulants in liquid hydrocarbonaceous mediums, such as crude oils and gas oils, during processing of such liquids at elevated temperatures.  The enaminones are formed via reaction of polyalkenylsuccinimide and a dicarbonyl compound.  The polyalkenylsuccinimide intermediate is first formed via reaction of polyalkenylsuccinic anhydride and polyamine.
Patent CA-2068770-A1 (CA)
Inventor: BOURGUIGNON JEAN-JACQUES
IPC: C07D237/20
Filed: 1992-05-15
Abstract: PATENT APPLICATION entitled: Novel 3-aminopyridazine derivatives active on the   central   nervous   system,   method   of preparation and pharmaceutical compositions in which they are present in the names of : Jean-Jacques BOURGUIGNON                   Jean-Paul KAN Camille Georges WERMUTH            Assignee: ELF SANOFI                 ABSTRACT OF THE DISCLOSURE   The   invention   relates   to   3-aminopyridazine derivatives.      These compounds have the formula        (I) in which: - RV is a linear or branched C1-C4 alkyl group; - R6 is hydrogen, a C1-C3 alkoxy or a hydroxyl group; and - Z is a group   in which: *  n1 and n2 independently are zero or one, * Y1 and Y2 independently are hydrogen or a C1-C3 alkyl group, and * T is a dialkylamino group in which the alkyls are C1-C3,  if Y1  or Y2  is other than hydrogen,  or T  is  a heterocycle selected from:   when n1 = n2 = 1 a)               Y1 = CH3 and Y2 = H or Y1 = H andY2 = CH3 and W is an oxygen or sulfur atom when n1 = n2 = 1 b)               Yl = Y2 = H                 and p is 2 or 3 ;     when n1 = n2 = 0 c)          and p is 2 or 3 and R = C1-C3 alkyl;   when n1 = 1, n2 = 0 Y1 = H d)             and p' and p" are 3 or 4 ;     Application: drugs active on the central nervous system.            No figure.
Patent CA-2069820-A1 (CA)
Title: Safety device for an overhead cable transport installation
Inventor: BROCHAND MAX
IPC: B61B12/06
Filed: 1992-05-28
Abstract: ABSTRACT            The overhead cable transport installation in particular a gondola lift or a chairlift possesses a transfer rail in the station on which the grips detached from the cable run. At the exit of this transfer rail a coupling rail section extends parallel to the cable so that the cable is inserted between the jaws of the grip before the closing of the grip for clamping the cable. The coupling rail section comprises a safety device in the form of a gauge surrounding the cable which allows the free passage of the grip when the cable is inserted between the jaws. Inversely when the cable is adjacent outside to the jaws the grip is wedged and hold back to prevent the chair to reach the end of the transfer rail and to fall down.
Patent CA-2070654-A1 (CA)
Title: Process for producing cyclic olefin based polymers, cyclic olefin copolymers, compositions and molded articles comprising the copolymers
Inventor: OKAMOTO TAKUJI
IPC: C08F4/642
Filed: 1991-10-03
Abstract: A process for effectively producing a cyclic olefin polymer and a cyclic olefin/alpha-olefin copolymer without opening the cyclic olefin, is disclosed. Further, a novel cyclic olefin/alpha-olefin copolymer prepared by the above-mentioned process, compositions and molded articles comprising the novel copolymer, are also disclosed. In the process for producing a cylcic olefin based polymer according to the present invention, homopolymerization of a cyclic olefin or copolymerization of a cyclic olefin and an alpha-olefin is effected in the presence of a catalyst comprising, as main ingredients, the following Compounds (A) and (B), and optionally Compound (C): (A) a transition metal compound; (B) a compound capable of forming an ionic complex when reacted with a transition metal compound; and (C) an organoaluminum compound.
Patent CA-2070780-A1 (CA)
Inventor: SCHUSSLER HORST
IPC: B23D35/00
Filed: 1991-10-23
Abstract: Porte-lames comportant un premier sous-ensemble se fixant au bâti d'une machine et un deuxième sous-ensemble amovible associé au premier. Un outil tranchant à contour extérieur circulaire est monté sur le deuxième sous-ensemble, et seulement un des côtés opposés de l'outil tranchant est supporté par le premier ensemble. Ainsi, l'ensemble est, globalement, plus étroit, ce qui permet de couper des bandes plus étroites à partir d'un matériau en continu. Un mécanisme exerçant une force maintient le premier et le deuxième sous-ensembles côte à côte.
Patent CA-2071650-A1 (CA)
Title: Process for grafting vinyl monomers on particulate olefin polymers
Inventor: DENICOLA ANTHONY J JR
IPC: C08F255/00
Filed: 1992-06-19
Abstract: This invention provides a uniformly grafted particulate polyolefin material formed by the free radical-initiated grafting of at least one non-homopolymerizing vinyl monomer at free radical sites on a particulate olefin polymer material having (a) a pore volume fraction of at least about 0.07 wherein more than 40% of the pores have a diameter larger than 1 micron; and (b) a weight average diameter in the range of about 0.9 to 7 mm. The amount of vinyl monomer grafted to the as-polymerized particulate olefin polymer material is about 0.1 to 10%, preferably about 0.3 to 5.0%, of the total weight of the grafted olefin polymer product, and the grafted vinyl monomer is uniformly distributed throughout the particles of the olefin polymer material.
Patent CA-2073368-A1 (CA)
Title: Fluidic oscillator and flowmeter incorporating said oscillator
Inventor: HUANG BAO T
IPC: G10K5/00
Filed: 1992-07-08
Abstract: Fluidic oscillator and flow meter comprising such a fluidic oscillator comprising a fluid intake (3) capable of forming a two-dimensional jet; an obstacle (16) having a front part in the form of a chamber (8) opposite the intake (3) in the course of the jet, this chamber (8) comprising two walls (22, 23) which are symmetrical with respect to a longitudinal plane of symmetry (2) passing through the said intake (3), the walls (22, 23) joining on this plane (2); and means for alternately increasing the pressure on each of the side faces of the obstacle (16) in the vicinity of the front part in relation to an oscillation of the jet between the walls of the chamber (8). <IMAGE>
Patent CA-2074083-A1 (CA)
Title: Cable termination
Inventor: CLITS PATRICK
IPC: G02B6/38
Filed: 1991-02-06
Abstract: An optical fibre cable is terminated by stripping back the jacket a certain length, cutting away the exposed core a shorter length, positioning an organizer a short distance from the newly formed end of the core, and providing a housing bridging the core and the organizer.
Patent CA-2079407-A1 (CA)
Title: Method of liquefaction of natural gas
Inventor: PARADOWSKI HENRI
IPC: F25J1/02
Filed: 1992-09-29
Abstract: A method of liquefying natural gas, wherein the gas (1) is cooled and separated into a liquid phase (6) and a gaseous phase (8) which is expanded (9) and added to the liquid phase in the column (7), at the head of which the gas enriched with methane (21) is separated and recompressed (27) and carried to the liquefaction (32, 33, 34) whereas the liquid phase from the bottom of column (7) is expanded and rectified in column (14) ; the head effluent (19) being condensed (20) and conveyed as a reflux (25) to column (7); the pressure in column (7) being higher than that of column (14) ; the C3+ hydrocarbons from the bottom (16) being separated and the methane liquefaction (33, 34) being conventional.
Patent CA-2079713-A1 (CA)
Inventor: FISTER CHRISTIE L
IPC: B63C9/115
Filed: 1992-10-02
Abstract: ABSTRACT OF THE DISCLOSURE     A floatation suit for physically disabled persons includes a jacket, pants,  and outrigger floatation members. The outriggers prevent the wearer from tilting or rotating and assist in floata-tion. By selectively affixing long and short outriggers to both or either the jacket or pants, the degree and location of buoyancy will be controllable. A collar floatation member is attachable to the jacket to stabilize the wearer's head and neck. All components are constructed so as to allow the disabled person to float in the water for recreational and therapeutic purposes, while maintaining the wearer's body in a desired position.
Patent CA-2080069-A1 (CA)
Inventor: CARLTON JAMES D
IPC: G21C15/18
Filed: 1992-10-07
Abstract: In order to supply emergency coolant directly to the core inlet of a nuclear reactor, a separate and distinct channel is located within the reactor vessel.  This channel flows downward along  the  perimeter  of  the  core  barrel  and  discharges  its emergency coolant directly to the core inlet.  Separate nozzles couple this channel to the supply of emergency coolant.
Patent CA-2081749-A1 (CA)
Title: Cigarette system
Inventor: BOWEN LARRY
IPC: A24D1/00
Filed: 1992-10-29
Abstract: A novel cigarette is described which has a greater number of puffs, at least about 2 more, preferably at least about 4 more and more preferably at least about 6 more, than a conventional cigarette of same dimensions and  length of tobacco rod.   The cigarettes  may be partially smoked, extinguished, stored and then resmoked. The greater-than-normal number of puffs may be achieved by employing a slower burning tobacco blend, a lower draw resistance tobacco, a greater tobacco density and/or a burn rate retardant wrapper.
Patent CA-2082886-A1 (CA)
Title: Hair dryer attachment
Inventor: MCDOUGALL GREGORY J
IPC: A45D20/10
Filed: 1992-11-13
Abstract: A B S T R A C T                       HAIR DRYER ATTACHMENT   A hair dryer attachment includes a rotor impeller (7, 9, 10; 107, 109, 131, 132)for converting a uniform stream of air from the hair dryer into a pulsating stream of air. A governor (11, 12, 13, 14; 111, 112, 113, 114) is provided on the rotorimpeller (7, 9, 10; 107, 109, 131, 132) or reduction gearing (135, 136) is provided between the rotor (107, 109) and the impeller (131, 132) to reduce the speed of rotation so that the pulsations are at a frequency perceptible to the user.
Patent CA-2092595-A1 (CA)
Title: Superconducting film and process for production thereof
Inventor: SHIMIZU HIDEKI
IPC: H05K9/00
Filed: 1993-03-26
Abstract: ABSTRACT     A superconducting film comprises 0.1-5% by weight of magnesium oxide  wherein the superconducting film has a thickness in  a range from  300 to 1,000 µm.  A superconducting device for magnetic   shielding   comprises:     a   substrate:   and     a superconducting   layer   supported   by   the   substrate,    the superconducting   layer   including   grains  of   a    Bi-type superconducting oxide so that the superconducting layer has a critical temperature higher than  -196 °C,  the superconducting layer having a thickness in a range from 300 to 1,000 µm, the superconducting layer including  0.1-5% by weight of magnesium oxide,   wherein  the  superconducting device  has   a  laminated structure including the substrate and the superconducting layer.          A process for producing a  superconducting film comprises the steps  of:    firing  a  mixture  of  calcined  powders  of  a superconducting oxide and 0.1-5% by weight of magnesium oxide powders at a temperature at which the superconducting oxide is partially melted.