baber/WOPTO huggingface dataset:
Patent CA-2039094-A1 (CA)
Inventor: CYMAN THEODORE F
IPC: B41J2/415
Filed: 1991-03-26
Abstract: A method and apparatus provide enhanced longevity of the ion cartridge in an MIDAX* (silent electric discharge) electrostatic imaging processing system. The conventional ion cartridge comprises a solid dielectric with driver and control electrodes on opposite sides, the second electrode defining a discharge region at the junction of the edge surface of the solid dielectric member. Alternating current is supplied to the electrodes to induce charged particle production electrical discharges. Gas is supplied to the discharge region to replace the vast majority of the air during charge particle generation. The gas is a mixture consisting essentially of nitrogen with an amount of argon, neon, xenon, or krypton effective to provide a catalyst for nitrogen ionization while preventing arcing. Typically, the gas is a mixture of nitrogen and argon in a ratio of about 5 to 1 to about 20 to 1 (e.g. about 10 to 1), with the total gas flow rate to the discharge region about 4.75 - 6.25 cubic feet per hour. The gas is supplied to the area between the ion cartridge and an imaging drum by a pair of gas manifolds at opposite ends of the drum, and a pair of spray tubes having numerous perforations along their length extending between the gas manifolds.      Regulators precisely control the amount of nitrogen and argon supplied to the gas manifolds.
Patent CA-2042939-A1 (CA)
Title: Polyimide resin and preparation thereof
Inventor: ITATANI HIROSHI
IPC: C08G73/10
Filed: 1991-05-21
Abstract: Abstract of the Invention A polyimide resin composition with outstanding heat resistance and mechanical properties is disclosed, along with a novel method of its preparation.  A tetracarboxylic acid or its derivative and an aromatic diamine are dissolved in a solvent system of mixed phenols and are both polymerized and imidized on one step.
Patent CA-2043218-A1 (CA)
Title: Device for and method of measuring absolute rotations in several directions in space
Inventor: SCHOLZ JOACHIM
IPC: G01C19/72
Filed: 1991-05-24
Abstract: To measure absolute rotations in several directions in space with the aid of interferometers, one interfero-meter is required for each direction in space. Accor-ding to the invention, it is proposed to supply a device consisting of several interferometers from a common light source and to switch only the phase modu-lation impressed on the light rather than the light paths, using time-division multiplexing. The output signals from the interferometers are detected and evaluated with a single detector and evaluating unit.
Patent CA-2043838-A1 (CA)
Inventor: WEAVER BRYAN A
IPC: H03F3/217
Filed: 1991-06-04
Abstract: A power amplifier for a plate load of an AM, RF transmitter includes plural switching stages each powered by a DC source. Each stage is switched from non-sourced to saturation in response to the amplitude of an analog source exceeding a threshold amplitude for the stage; each stage has a different threshold.   The thresholds and analog source are arranged so that responses derived between output terminals of the stages change between zero and predetermined amplitudes as the source amplitude changes relative to the thresholds of the different stages.  The responses of the different stages are summed.  A triangular wave having a small constant maximum amplitude relative to the analog source maximum value effectively changes the threshold of each stage.   From time to time the thresholds of different stages are changed so that at different times different stages are in non-sourced and conducting for the same amplitude of the modulating source, while providing the same summed response for the same amplitude of the modulating source.
Patent CA-2047197-A1 (CA)
Title: Aluminum-lithium, aluminum-magnesium and magnesium-lithium alloys of high toughness
Inventor: WEBSTER DONALD
IPC: C22C21/06
Filed: 1990-03-15
Abstract: The toughness of Al-Li, Al-Mg and Mg-Li alloys is increased by a melting and refining process designed to reduce the concentration of alkali metal impurities below about 1 ppm and preferably below about 0.1 ppm (Fig. 1). The hydrogen and chlorine gas constituents are also significantly reduced.
Patent CA-2048353-A1 (CA)
Inventor: MILENKEVICH JOSEPH A
IPC: F24C7/02
Filed: 1991-08-02
Abstract: PATTERN COATED MICROWAVE FIELD MODIFIER OF DISCRETE ELECTRICALLY CONDUCTIVE ELEMENTS     ABSTRACT A patterned, microwave field modifier for use in microwave ovens which  modifier may  be  discrete;  or  may  be  integrated  into,  for example,  packages  or packaging  or wrapping  type materials,  or  in durable  or  disposable  cookware.   The  modifier  may  constitute  a dielectric substrate having a plurality of discrete surface areas which are coated with an electrically conductive coating material to form discrete electrically conductive elements, and which discrete elements on a given surface are disposed in a predetermined array. Preferably the  elements  are  elongate;  and,  preferably,  the  array constitutes a plurality of rows of linearly aligned elements which rows are in parallel relation, and in which the elements in adjacent rows are in staggered relation.  The electrically conductive elements are preferably formed by printing an electrically conductive ink-like coating material on the dielectric substrate.  The relative values of microwave power reflectance,  absorbance,  and transmittance of such microwave  field  modifiers  may  be  tailored  to  specific  needs  by varying  the  surface  electrical  conductance  of  the  elements;  the lengths, widths, spacing, and the degree of stagger between adjacent elements;  the  resistivity,  shape, size,  and  aspect  ratio  of electrically conductive particles of the coating material;  and the dielectric properties of the substrate and/or other constituents of the coating material.
Patent CA-2053021-A1 (CA)
Title: Apparatus for compressing a fluid
Inventor: HEIJNEN WILHELMUS H P M
IPC: F04D3/02
Filed: 1991-10-08
Abstract: A B S T R A C T                APPARATUS FOR COMPRESSING A FLUID     Apparatus for compressing a fluid comprising a tubular, open-ended housing (2) having a suction end (5) and a discharge end (6), a tubular, open-ended rotor (8) rotatably arranged in the housing (2), an annular driver space (17) which is defined between the inner surface of the housing (2) and the outer surface of the rotor (8), an annular seal preventing fluid flow from the annular driver space (17) to the suction end (5), a rotor driver (20) arranged in the annular driver space (17), and a rotor-driven compressor (30) arranged in the tubular rotor (8), wherein the rotor-driven com-pressor (30) includes a helical screw blade (32) which is secured to the inner surface of the tubular rotor (8), and wherein the pitch of the helical screw blade (32) decreases in the direction of the discharge end (6).            (Figure 1) hsbfg:t6003ff.doc
Patent CA-2057154-A1 (CA)
Title: Light box
Inventor: SIMMONS ADRIAN
IPC: F21V13/12
Filed: 1991-12-06
Abstract: ABSTRACT   Light Box The light box is provided with a case having arranged therein a reflector directed to the front wall to be illuminated from the rear. The reflector surf ace has a concave curvature. An elongated light source is arranged in the center of the case. The reflector, in the central area thereof, is covered by an optical film having a structured surface directed to the light source. This structure consists of immediately adjacent V-shaped grooves, being parallel to each other and running transverse to the extension of the light source. By total reflection on the structured surface of the transparent optical film as well as by reflection on the reflector surface of the reflector, the light of the light source incident on the reflector is reflected in the direction of the back-lit front side of the light box. This arrangement provides for improved and more-uniform light distribution.            SWBAPP1(46857CAN.ABS)
Patent CA-2061447-A1 (CA)
Inventor: COZZI PAOLO
IPC: A61K31/17
Filed: 1992-02-18
Abstract: ABSTRACT          DISUBSTITUTED UREAS AND THIOUREAS The invention provides new ureas and thioureas derivatives of general formula (I)   (I) wherein m is zero, 1 or 2; n is 1, 2 or 3; Q is oxygen or sulphur; X and Y, being the same, are oxygen or sulphur; A is a) a C1-C10 saturated or unsaturated, branched or un-branched hydrocarbon chain, unsubstituted or sub-stituted by 1 to 4 substituents independently chosen from halogen, C1-C6 alkyl, trihalo-C1-C3 alkyl and C1-C6 alkoxy; b) a C3-C7 cycloalkyl ring unsubstituted or substi-tuted by 1 to 4 substituents independently chosen from halogen, C1-C6 alkyl, trihalo-Cl-C3 alkyl and C1-C6 alkoxy; c) an aryl group unsubstituted or substituted by one to four substituents independently chosen from halogen, C1-C6 alkyl, trihalo-C1-C3 alkyl, hydroxy, C1-C6 alkoxy, C1-C6 alkylthio, C1-C6 alkylsulfonyl and C1-C4 di-alkylamino;      Abstract d) an aryl group substituted by two adjacent sub-stituents forming a methylenedioxy group and optionally by 1 to 3 substituents as defined above under c); or e) an aryl group substituted by an imidazolyl group, in its turn optionally substituted by C1-C4 alkyl; each of R1 and R2, independently, is C1-C6 alkyl; or R1 and R2, taken together, are a C2-C4 alkylene chain in which each carbon atom can be optionally substituted by 1 or 2 substituents independently chosen from halogen and C1-C4 alkyl; B is an aryl group unsubstituted or substituted by 1 to 4 substituents independently chosen from halogen, C1-C6 alkyl, trihalo-C1-C3 alkyl, C1-C6 alkoxy, C1-C6 alkyl-thio, and C1-C6 alkylsulfonyl; and the pharmaceutically acceptable salts thereof, which are useful as therapeutic agents such as for the prevention of coronary heart disease and as antidyslipidaemic agents.
Patent CA-2064209-A1 (CA)
Title: Biscitraconimide (co) polymers and curing with anionic catalyst
Inventor: HOPE PETER
IPC: C08J5/04
Filed: 1990-07-06
Abstract: A curable composition comprising at least one biscitraconimide unit having formula (I), wherein D is a divalent group, R is CH2-R1 and R1 is independently selected from the group consisting of hydrogen and alkyl groups having 1 to 18 carbon atoms, characterized in that the composition comprises a sufficient amount of an anionic curing catalyst to convert at least 10 % of the R  groups on the biscitraconimide units into alkylene bridges in the cured composition, is disclosed. A process for curing the foregoing composition is disclosed as well. Also disclosed is a polymeric material obtained by the process of curing the foregoing composition as well as objects embodying this cured polymeric material.  The polymeric material may also be cocured in the presence of one or more polymerizable materials. The polymeric material obtained exhibits significantly improved tensile strength and flexural strength over typical bismaleimide polymers which makes it useful for preparing fiber-reinforced materials.
Patent CA-2065284-A1 (CA)
Title: Composition for stabilizing blood plasma during pasteurization
Inventor: BURNOUF MIRYANA
IPC: A61K35/16
Filed: 1991-06-20
Abstract: Composition for stabilizing blood plasma, whole or lacking cryoproteins, during pasteurization. The composition according to the invention is used for pasteurizing substantial volumes of plasma (up to several hundreds of litres). The invention also concerns a process for the pasteurization of plasma using said stabilizing composition. The pasteurized plasma obtained is for therapeutic use.
Patent CA-2067330-A1 (CA)
Title: Herpes simplex virus type 1 mutant
Inventor: PRESTON CHRISTOPHER M
IPC: A61K48/00
Filed: 1990-08-14
Abstract: A herpes simplex virus type 1 (HSV-1) mutant capable of establishing latent infection in the absence of in vivo viral replication in neuronal cells and of expressing an inserted therapeutic gene, which comprising: (i) a DNA sequence change in the gene coding for Vmw65 protein, such as to substantially remove the transinducing properties whilst retaining its structural role and thereby preventing in vivo replication, the DNA sequence change being achieved by a transition or transversion alteration of 1 to 72 base pairs, an oligonucleotide insert of 3 to 72 base pairs, or a deletion of 3 to 72 base pairs, at a position between amino acids 289 and 412 of the protein; and (ii) a therapeutic gene inserted into a region of the HSV-1 genome which in non-essential for culture of the virus, and a promoter therefor able to express the therapeutic gene in neuronal cells in vivo. The preferred insertion site for the therapeutic gene (e.g.  tyrosine hydroxylase gene) is within the thymidine kinase gene of HSV in 1814.
Patent CA-2067563-A1 (CA)
Inventor: OHSHIMA TOSHIYUKI
IPC: C08G18/65
Filed: 1992-04-29
Abstract: A polyurea resin molding composition for reaction injection molding use which comprises (a) a polyoxy-alkylenepolyamine, (b) an aromatic polyamine and/or a xylylenediamine and tc) a polyisocyanate, wherein either one or both of components (a) and (b) have been modified by a Michael reaction with an unsaturated compound of the formula CH2 = C(R)-Y wherein R is H or CH3 and Y is an electron attracting group.  The use of such modified polyamine(s) improves in-mold flow and green strength characteristics.
Patent CA-2070839-A1 (CA)
Title: Method for removing organic film
Inventor: KASHIWASE MASAHARU
IPC: H01L21/027
Filed: 1991-10-09
Abstract: A method of removing organic coating which is vary effective in removing photoresist films in a process of manufacturing semiconductor devices. The organic film is removed by treating a substrate (32) on which a photoresist film (31) is formed in a wet-type processing vessel (34) which is filled with a processing liquid such as a mixture of sulfuric acid and hydrogen peroxide water, or in an ozone processing vessel (34) fillers with a liquid obtained by adding ozone or ozone water to ultra-pure water after the dry processing of the substrate with ozone or oxygen plasma.
Patent CA-2072970-A1 (CA)
Inventor: SAUBOLLE MALCOLM C
IPC: E01F9/615
Filed: 1991-09-06
Abstract: 2072970 9204206 PCTABS00011 A hazard warning device for use in place of a conventional flare has a lamp assembly using a long shelf life battery (B1) to over-run a light emitting diode (LED1) under control of a low duty cycle low frequency oscillator (U1). The lamp assembly is built into a lens (4) at one end of a baton-like device, the remainder of which is a stem-like body (2) provided with a strut assembly (30, 32, 34, 36, 38, 40, 42, 44, 46) similar to an umbrella frame which can be deployed between a folded condition lying against the stem and a deployed condition in which struts (46) form a tripod support for the device. Deployment of the strut assembly also activates a switch (50) to energize the lamp assembly.
Patent CA-2077131-A1 (CA)
Title: 13beta-o-methoxymethyl-22,23-dihydro avermectin b1a-b1b aglycone as a superior antiparasitic agent
Inventor: LINN BRUCE O
IPC: C07H19/01
Filed: 1992-08-28
Abstract: TITLE OF THE INVENTION 13.beta.-O-METHOXYMETHYL-22,23-DIHYDRO AVERMECTIN BlA/BlB AGLYCONE AS A SUPERIOR ANTIPARASITIC AGENTS            ABSTRACT OF THE INVENTION         The novel compound l3.beta.-o-methoxymethyl-22,23 dihydro avermectin Bla/Blb aglycone is useful as an anthelmintic and antiparasitic agent and has been discovered to be unexpectedly superior to the corresponding 13.alpha.-compound.  The compound is also useful as a pesticide and insecticide against agricultural pests.  Compositions containing said compound and methods of administering said compositions are also disclosed.
Patent CA-2077386-A1 (CA)
Inventor: TAYLOR THOMAS N
IPC: B42C1/12
Filed: 1992-09-02
Abstract: A document finisher includes a printing station for printing on the binding-of  a book.   The printing station in one embodiment prints on the binder tape before the book is bound.   In a second embodiment, the printer prints  on  the  binding after  the  book  is  bound.   The printing stations are space efficient and designed to be easily incorporated with preexisting stations in document finishers.   Ink jet printers and impact-type printer may be utilized.
Patent CA-2077445-A1 (CA)
Inventor: HENDRY JAMES WATSON
IPC: B29C45/17
Filed: 1991-02-06
Abstract: A method and apparatus for injection molding plastic articles with gas-assistance wherein the injected molten plastic (18) is depressurized by a controlled amount prior to gas injection to facilitate the penetration of the gas into the molten plastic (18) within the article-defining cavity (44) of the mold.
Patent CA-2077561-A1 (CA)
Title: Combination tool
Inventor: AMEUR HANAFI
IPC: A01D34/62
Filed: 1991-02-18
Abstract: A combination tool for performing snow removal and lawn mowing as well as leaf removal and other functions comprises at least one shovel member including wing elements particularly adapted for snow removal. Furthermore, the shovel member (5) has at least one cutter blade (6) arranged along the shovel member (5). These cutter blades (6) cooperate with a shear blade (10) which is arranged, by cooperating with a flap (7), to be swung down and up for lawn mowing and leaf removal and for snow removal, respectively.
Patent CA-2079247-A1 (CA)
Title: Safety goggles lens retention
Inventor: HEWITT CHARLES D
IPC: A61F9/02
Filed: 1992-09-28
Abstract: The eye protection lens of safety goggles provides increased impact protection without utilizing external fasteners or external sealing means.  The mechanical attachment of the lens to the goggles rim is improved and stabilized against separation forces by the interlocking engagement of a wedge shaped retainer rib formed along the periphery of the safety lens.   The lens support frame has a retainer rim which is intersected by an open slot, thereby defining an outside body portion and an inside body portion.  An annular shoulder is formed on the inside body portion and partially closes the open slot.  The retainer rib is received within the slot, with its apex being engaged against the inside body portion of the goggles rim, and the wedge portion of the retainer rib being disposed in overlapping, interlocking engagement with the annular shoulder.
Patent CA-2080471-A1 (CA)
Title: Process for the combined treatment of waste materials
Inventor: QUAAK MARINUS PIETER
IPC: C02F11/10
Filed: 1991-04-11
Abstract: The invention relates to a process for the combined treatment of waste materials of two types A and B, A being waste material having a relatively high energy content and B being a water containing  waste material having a relatively low energy content, said process comprising the following steps: 1) pyrolyzing (2) material A to produce a gas and/or oil (4) and a carbonaceous residue (3), 2) mixing (11) said carbonaceous residue with B to form a water containing mixture C, 3) shaping (12) said mixture C into individual pieces, 4) drying and baking (13) said pieces to ceramic bodies (15), wherein in step 2, the carbonaceous residue (3) is used in such an amount that less than about 80 % of the totally required baking energy is contained in mixture C.
Patent CA-2082784-A1 (CA)
Title: Polyurethane coating compositions containing polyether polyols as additives
Inventor: MARGOTTE DIETER
IPC: C08G18/08
Filed: 1992-11-12
Abstract: The present invention relates to an aqueous coating composition containing a) an aqueous solution ar dispersion of a polyol component containing at least one water-dilutable polyacrylate resin having hydroxyl groups and a molecular weight (Mn) above 500, b) a polyisocyanate component which has a viscosity of 50 to 10,000 mPa.s at 23°C and is emulsified in component a), and c) 0.5 to 6% by weight, based on the weight of component a), of a water-soluble polyether polyol having a molecular weight of 300 to 1000, wherein the coating composition has an NC0/OH equivalent ratio of 0.5:1 to 5:1, based on the isocyanate groups of component b) and the alcoholic hydroxyl groups of components a) and c).
Patent CA-2084064-A1 (CA)
Title: Recombinant pigeon pox virus vaccine
Inventor: MEULEMANS GUY
IPC: C07K14/125
Filed: 1991-07-01
Abstract: The present invention provides a recombinant pigeon pox virus synthetically modified by the presence, in a non-essential region of the pigeon pox genome, of DNA not naturally occurring in pigeon pox virus. In a preferred embodiment of the invention, pigeon pox virus is modified by at least a portion of the Newcastle Disease virus F gene wherein the F gene is inserted within the thymidine kinase locus in the pigeon pox genome.
Patent CA-2084742-A1 (CA)
Inventor: BARBIERI BENIAMINO
IPC: G01N21/64
Filed: 1992-12-07
Abstract: Apparatus for cross-correlation frequency domain fluorometry and/or phosphorimetry in which means are provided for sequentially performing runs of the cross correlation frequency domain fluorometry and/or phosphorimetry at sequentially differing first and second frequencies, The intensities of signal responses of the runs are detected at the respective cross-correlation frequency in each run. The detection of the signal response is prolonged in each run until an integrated signal with a specified standard deviation has been acquired at each of the differing runs. Preferably the sequential runs are automatically executed by a program.      Also, the waveforms sensed by deriving the resultant signal response in each run are folded. That is: corresponding segments of the waveforms are superimposed to obtain an average waveform value for each run having an increased signal to noise ratio over the individual waveform segments. Also, preferably, a software-created variable frequency digital filter is used to filter signal responses at the cross-correlation frequency.
Patent CA-2089058-A1 (CA)
Title: Pontoons and pontoon vessel
Inventor: DAVIS JOHN
IPC: B63B7/02
Filed: 1993-02-08
Abstract: A pontoon boat is manufactured using sectional pontoons of rotationally molded thermoplastic material. The pontoon sections are engaged end to end using integral lugs and sockets on the ends of the pontoon sections. Each section has a head located above the main hull portion of the pontoon. Channels engage opposite sides of the heads and extend along the pontoons to ensure the coupling of the pontoon sections.  These channels also couple the pontoons to a deck carried on transverse beams joining the channels.
Patent CA-2091293-A1 (CA)
Title: Sign language translation system and method
Inventor: ABE MASAHIRO
IPC: G06F17/28
Filed: 1993-03-09
Abstract: A sign language translation system and method not only recognizes words of a sign language but also supplements omitted words between the words of the sign language, to thereby generate a spoken language.  The sign language translation system has an input unit for inputting at least the motion of hands, a language generating unit responsive to the inputted motion of hands for recognizing the words corresponding to the motion of hands and generating a spoken language using the relationship between the recognized words, and an output unit for outputting the generated spoken language.          The sign language translation system and method can translate a sign language into an easy-to-understand spoken language.
Patent CA-2091330-A1 (CA)
Title: Powder collection method and apparatus with isolated filter pulsing and compression mounted cartridges
Inventor: SHUTIC JEFFREY R
IPC: B05B15/12
Filed: 1993-03-09
Abstract: ABSTRACT OF THE INVENTION      An apparatus and method of dislodging particles of powder material from the exterior of cartridge filters in the powder recovery unit of a powder spray system.  In the powder recovery unit, particles of powder material collect on the cartridge filters as filtered air enters the hollow interior of the cartridge filters and moves toward the open tops thereof.  Periodically, the flow rate of the filtered air through a cartridge filter is reduced and a pulse of air is directed into the open top of that cartridge filter, in a direction opposite to the normal direction of movement of the filtered air, to dislodge the particles from the cartridge.  In addition, the cartridge filters are vertically disposed and compression mounted in such a way that the cartridge support hardware does not obstruct the air flow through the top opening of the cartridge filter.