baber/WOPTO huggingface dataset:
Patent CA-2018031-A1 (CA)
Inventor: AZADEGAN FARAMARZ
IPC: H04N7/30
Filed: 1990-06-01
Abstract: A method and apparatus for digital encoding are described for compressing the augmentation channel signals (chrominance and luminance signals for panel information and high frequency luminance and line sifference signal) so that this information can be transmitted in a 3 MHz wide RF channel using a digital transmission scheme such as QPSK. Analog signal components are sampled and converted to digital signals. Each of the signals is fed into a separate coder which reduces the number of bits/pixel required to reconstruct the original signal. Compression is achieved by quantization and removal of redundancy. The compression scheme is based on the use of DCT together with ULC. Each augmentation signal has its own coder, which is adapted to the unique statistics of this signal.
Patent CA-2018652-A1 (CA)
IPC: G06F3/033
Filed: 1990-06-11
Abstract: ABSTRACT OF THE DISCLOSURE           A system for providing keystroke data to an application program without utilizing a keyboard that simultaneously display application program graphics and a keyboard representation on different segments of a screen. Keys are selected by touching the screen at the location of the graphic representation of the key on the screen.  The system is transparent to the application program.
Patent CA-2021208-A1 (CA)
Inventor: ROBERT VINCENT
IPC: C09D9/00
Filed: 1990-07-16
Abstract: " LAVAGE DECAPANT POUR ENLEVER LES FINIS POUR BOIS " D'EXTERIEUR ET LES TEINTURES SEMI-TRANSPARENTES. Ce procédé biodégradable est inventé spécialement dans le but d'enlever rapidement et facilement les finis transparents pour bois d'extérieur de " SIKKENS " et les teintures semi-transpa-rentes, lesquels ont la propriété de laisser voir le grain naturel du bois. Ce procédé peut être utilisé par tout propriétaire ou particulier désireux de conserver cette transparence au moment de renouveler un ancien traitement défrachit par les saisons et ce, sans frottage ni équipement professionnel. Ce procédé permet d'éviter l'accumulation de nombreuses couches superposées, successivement jusqu'à ce qu'elles forment une épaisse pellicule de plus en plus opaque après chaque traitement additionnel, masquant le bois et laissant une apparence inacceptable. Par ce procédé, le bois est chaque fois ramené à sa condition initiale vierge très facilement et très rapidement avant chaque renouvellement de traitement afin d'obtenir et de conserver cette transparence véritable espérée dans ces traitements.
Patent CA-2021622-A1 (CA)
Title: Predistortion equalizer with resistive combiners and dividers
Inventor: KATZ ALLEN
IPC: H03F1/32
Filed: 1990-07-19
Abstract: A predistortion equalizer for a power amplifier includes a linear channel and a nonlinear channel. A phase shifter is associated with the linear channel and an attenuator is associated with the nonlinear channel. A resistive power divider divides the received signal which is to be predistorted and divides it into two parts, each of which is applied to one of the channels. The two parts may be equal in magnitude. The linear and nonlinear signals at the outputs of the linear and nonlinear channels, respectively, are combined out-of-phase in a resistive combiner to produce a predistorted signal for application to a power amplifier. The resistive combiner and divider maximize bandwidth.
Patent CA-2022258-A1 (CA)
Title: Double walled underground storage tank
Inventor: BERG ROBIN
IPC: B65D90/505
Filed: 1990-07-25
Abstract: ABSTRACT OF THE DISCLOSURE    An underground storage tank is provided with a load-transmitting material in the annular space between inner and outer walls.  The load-transmitting material passes aqueous liquid and the stored product and so may be used with either wet or dry alarm systems.
Patent CA-2023190-A1 (CA)
Inventor: SANDSTROM PAUL H
IPC: B60C1/00
Filed: 1990-08-13
Abstract: A pneumatic rubber tire having an integral air retention toeguard outer layer of a sulfur cured rubber composition comprised of a blend of butyl and/or halobutyl rubber and epoxidized natural rubber.
Patent CA-2028012-A1 (CA)
Title: Hybridization assay for campylobacter rrna
Inventor: DIMOND RANDALL
IPC: C12Q1/68
Filed: 1990-10-19
Abstract: ABSTRACT     Method of detecting the presence of one or more Campylobacter species in a test sample, and providing a plurality of oligonucleotide probes, each having a nucleotide sequence which is complementary to regions of Campylobacter 16S rRNA.  The assay format consists of a solution hybridization of at least two labelled oligonucleotide probes one of which is specific to a region of a Campylobacter rRNA, and then the capture of the resulting hybrid complex on a solid support for subsequent detection and quantitation.  The assay has a quantitative sensitivity to detect 1.0 x 104 bacterium per ml of test sample.  A test kit and apparatus suitable for the method are described.  In an expanded variation of the method an assay and kit are described for detecting the presence of one or more target nucleic acid sequences in a test sample.
Patent CA-2030095-A1 (CA)
Title: Bee nest stripper
Inventor: EGGERMAN PERCY A
IPC: A01K67/033
Filed: 1990-11-15
Abstract: BEE NEST STRIPPER     ABSTRACT OF THE DISCLOSURE         A hole in a leafcutter bee nest is stripped by pushing a thin tube through the hole to separate the larvae in the hole from the surrounding nest material.  A rod is  then pushed through  the  tube  to eject the separated larvae and cocoons from the tube.  The method is carried out using an apparatus with foot guides for engaging a nesting block and aligning the tubes with a row of holes in the block, and a sequential drive.  The drive  first pushes  the  tubes  through  the block  then drives the rods through the tubes.   The tubes and rods are  then withdrawn.    The  foot  guide  is  subsequently lifted out of engagement with the nesting block and the block is indexed one hole forwards for stripping of the next row of holes.
Patent CA-2031497-A1 (CA)
Title: Styrene derivative and method for preparing the same, polystyrene derivative comprising the styrene derivative and method for preparing the same, and sunscreening agent and cosmetic
Inventor: NAKAYAMA TOHRU
IPC: C07D307/54
Filed: 1990-04-25
Abstract: A styrene derivative represented by the general formula (I): (See Formula I) wherein one of R1 and R2 is vinylbenzyl group, another is hydrogen atom, a lower alkyl group, a carboxyalkyl group having 2 to 5 carbon atoms or phenyl group, R3 is hydrogen atom, a halogen atom, a lower alkyl group, carboxyl group, a carboxyalkyl group having 2 to 5 carbon atoms, a carboxyalkenyl group having 3 to 6 carbon atoms, an alkylamino group having 1 to 4 carbon atoms or nitro group, Q is sulfur atom or oxygen atom, X is (See Formula II, III, IV or V) and a method for preparing the same; a polystyrene derivative of which main component is the above styrene derivative and a method for preparing the same; and a sunscreening agent and a cosmetic composition of which active ingredient is the above polystyrene derivative are disclosed.
Patent CA-2031593-A1 (CA)
Title: Compositions of antiallergics and antihistamines and methods for their use
Inventor: YORK BILLIE M
IPC: A61P37/08
Filed: 1990-12-05
Abstract: ABSTRACT     Compositions of an antiallergic compound and an antihistamine for preventing and treating ophthalmic allergic  response  are  disclosed.    Methods  for preventing and treating ophthalmic allergic response with the compositions are also disclosed.
Patent CA-2032393-A1 (CA)
Title: Ltb4 synthesis inhibitors
Inventor: DJURIC STEVAN W
IPC: C07C65/32
Filed: 1990-12-17
Abstract: ?7N                        ABSTRACT             This invention relates to a compound of the formula:                             or a pharmaceutically acceptable salt thereof wherein X is oxygen, sulfur, -CH=CH-or -CH=N-; wherein R1 is alkyl, alkenyl or alkynyl of about 1 to 20 carbon atoms; wherein R is -CO2R2, tetrazole, methylsulfonamide or benzenesulfonamide, wherein R2 is hydrogen, alkyl of 1 to 6 carbon atoms or a pharmaceutically acceptable cation and R3 is hydroxyl or halogen, having utility as LTB4 synthesis inhibitors.
Patent CA-2033682-A1 (CA)
Title: 3-l-(5-thioxo-l-propyl)thiazolidine-4-carboxylic acid and derivatives therefrom, processes for the preparation thereof and pharmaceutical compositions containing them
Inventor: POLI STEFANO
IPC: A61K38/00
Filed: 1991-01-07
Abstract: Abstract 3-L-(5-THIOXO-L-PROLYL)THIAZOLIDINE-4-CARBOXYLIC    ACID AND DERIVATIVES THEREFROM, PROCESSES FOR THE PREPARA-TION THEREOF AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM   3-L-(5-thioxo-L-prolyl)thiazolidine-4-carboxylic    acid and the derivatives  thereof have valuable immunostimu-lating, antioxidant, antiradical and antiageing proper-ties. They are prepared by thionating the corresponding 3-L-pyroglutamyl-L-thiazolidine-4-carboxylic acid deri-vatives or by condensing  5-thioxo-L-proline with the corresponding L-thiazolidine-4-carboxylic  acid deriva-tives.
Patent CA-2035229-A1 (CA)
Title: Process for preparing a rubbery terpolymer of styrene, isoprene and butadiene
Inventor: HSU WEN-LIANG
IPC: C08C19/26
Filed: 1991-01-29
Abstract: Abstract of the Disclosure PROCESS FOR PREPARING A RUBBERY TERPOLYMER          OF STYRENE, ISOPRENE AND BUTADIENE     The subject invention relates to a technique for synthesizing rubbery terpolymers of styrene, isoprene and butadiene.  These rubbery terpolymers exhibit an excellent combination of properties for utilization in tire tread rubber compounds.  By utilizing such terpolymers in tire treads, tires having improved wet skid resistance can be built without sacrificing rolling resistance or tread wear characteristics.  The subject invention specifically discloses a process for preparing a rubbery terpolymer of styrene, isoprene, and butadiene having multiple glass transition temperatures and having an excellent combination of properties for use in making tire treads which comprises:  terpolymerizing styrene, isoprene and 1,3-butadiene in an organic solvent at a temperature of no more than about 40°C in the presence of (a) at least one member selected from the group consisting of triperidino phosphine oxide and alkali metal alkoxides and (b) an organolithium compound.
Patent CA-2036810-A1 (CA)
Title: Method of forming article with variable alloy composition
Inventor: SAWYER THOMAS F
IPC: C23C4/06
Filed: 1991-02-21
Abstract: RD-19,522 METHOD OF FORMING ARTICLE WITH VARIABLE ALLOY                   COMPOSITION                  Abstract of the Disclosure The method of forming a structure having multiple alloy properties is taught.  The method involves spray forming and employs a single alloy system which is subject to modification by addition of modifying elements.  The initial preform is made of the alloy without the modifiers present. The modifiers are added to mix with and dissolve in the alloy in a dispensing crucible supplying the spray forming operation.  The latter portions of the preform have modified alloy content and properties which are modified based on the modification of alloy content.
Patent CA-2039108-A1 (CA)
Title: Method and apparatus for detecting trace contaminents
Inventor: PURCELL LAUREN M
IPC: G01Q60/00
Filed: 1991-03-26
Abstract: ABSTRACT OF THE DISCLOSURE         Apparatus and methods for identifying the nature of an unidentified substrate present in trace amounts of known gaseous or liquid media such as air or water include collecting a sample of the substance in the media, filtering and concentrating the sample, depositing at least a portion of the sample on a known substrate, analyzing the deposited sample utilizing SETM, NFOM and/or AFM techniques to  form one or more  images  characteristic of the unidentified substance,  and then identifying the substance by comparing the images so obtained to images of known substances obtained using the same techniques.
Patent CA-2039464-A1 (CA)
Title: Platinum containing electrocatalyst material
Inventor: BUCHANAN JEFFREY S
IPC: B01J23/652
Filed: 1991-03-28
Abstract: An electrocatalytic material comprises an alloy of platinum with another element, supported on a conductive carbon support, the platinum loading being at 20 to 60 wt% and the ECA of the alloy being greater than 35 m2/g, is especially suitable for use in phosphoric acid fuel cells, and demonstrates unexpectedly high performance with high Pt loadings.
Patent CA-2043599-A1 (CA)
Inventor: WALDEN ROBERT W
IPC: H03B5/32
Filed: 1991-05-30
Abstract: A voltage controlled crystal oscillator circuit, such as a Pierce oscillator circuit 200, has an amplifier 20 connected across a two-terminal (12,13) crystaloscillator element (11). Each terminal (12,13) of the oscillator element is connected through a separate varactor (31,41) to a common node (36) to which voltages (VA)are applied to pull (modify) the resonant oscillation frequency of the circuit. To improve linearity of resonant frequency shift vs. applied voltage, each terminal (12, 13) of the oscillator element 11 is connected through another separate varactor (30,40) to another common node 35 to which bias voltage (VB) is applied.
Patent CA-2044114-A1 (CA)
Inventor: TANDEO FRANCOIS
IPC: F02B63/04
Filed: 1991-06-07
Abstract: Sous-marin convertible à coque résistante capable d'être transformé pour passer d'un mode de propulsion conventionnel à un mode de propulsion nucléaire.  Le sous-marin comporte une tranche arrière délimitée par la coque résistante et deux cloisons transversales, dans laquelle sont regroupées des installations de production et de stockage d'énergie électrique utilisant des batteries et des diesels-générateurs;  la tranche arrière est transformable pour convertir le sous-marin à l'utilisation d'une source anaérobie d'énergie,  en substituant à ces installations des installations adaptées à ladite source d'énergie tout en conservant ladite coque résistante et lesdites cloisons, sans que cette  substitution interne n'entraîne une modification substantielle du poids et du centrage massique de ladite tranche arrière.   L'invention trouve une application dans la réalisation d'un sous-marin convertible aisément transformable en version nucléaire.
Patent CA-2044404-A1 (CA)
Title: Self-clocking glyph shape codes
Inventor: BLOOMBERG DAN S
IPC: G06V30/224
Filed: 1991-06-12
Abstract: This invention provides self-clocking glyph shape codes for encoding digital data in the shapes of glyphs that are suitable for printing on hardcopy recording media. Advantageously, the glyphs are selected so that they tend not to degrade into each other when they are degraded and/or distorted as a result, for example, of being photocopied, transmitted via facsimile, and/or scanned-in to an electronic document processing system. Moreover, for at least some applications, the glyphs desirably are composed of printed pixel patterns containing nearly the same number of ON pixels and nearly the same number of OFF pixels, such that the code that is rendered by printing such glyphs on substantially uniformly spaced centers appears to have a generally uniform texture. In the case of codes printed at higher spatial densities, this texture is likely to be perceived as a generally uniformgray tone.   Binary image processing and convolution filtering techniques for decoding such codes also are diclosed, but this application focuses on the codes.
Patent CA-2044547-A1 (CA)
Title: Materiau thermoplastique renforce estampable, son procede de fabrication; articles moules obtenus a partir de ce materiau
Inventor: JACQUEMET REGIS
IPC: B32B17/04
Filed: 1991-06-13
Abstract: L'invention concerne un matériau thermoplastique renforcé estampable dont la résine thermoplastique contient au moins deux charges de nature et/ou de morphologie différente. Ce matériau est préparé par laminage de deux feuilles de résine entre lesquelles est disposé un mat de verre. Par estampage du matériau, on obtient des articles moulés de forme complexe.
Patent CA-2047301-A1 (CA)
Title: Plural liquid pack type, heat-curable polyisocyanate-polyol-polyepoxy resin composition and process for producing a shaped resin article therefrom
Inventor: YAMADA TAKEYOSHI
IPC: C08G18/18
Filed: 1991-07-17
Abstract: PLURAL LIQUID PACK TYPE, HEAT-CURABLE POLYISOCYANATE-POLYOL-POLYEPOXY RESIN COMPOSITION AND PROCESS FOR PRODUCING A SHAPED RESIN ARTICLE THEREFROM     ABSTRACT OF THE DISCLOSURE      A plural liquid pack type resin composition useful for producing a shaped resin article having an enhanced heat resistance, mechanical strength and machinability, comprises a first resinous individual component (A) comprising a polyisocyanate compound and a second resinous individual component (B) comprising a mixture of a polyol compound with a polyepoxy compound and a curing agent, or an individual sub-component (i) comprising a mixture of a polyol compound and a polyepoxy compounds and another individual sub-compo-nent (ii) comprising a mixture of the polyol compound with a curing agent, in which composition the polyol compound is contained in an amount of 10 to 40 equiva-lents of the hydroxyl group, the polyepoxy compound is contained in an amount of 5 to 20 equivalents of the epoxy group, and the total equivalent amount of the hydroxyl group and the epoxy groups is 15 to 45 equivalents per 100 equivalents of the isocyanate groups of the polyisocyanate compounds.
Patent CA-2048442-A1 (CA)
Title: Process for producing 3,5-di(.alpha.-methylbenzyl)salicylic acid derivative, and use of polyvalent-metal-modified product thereof as color developer
Inventor: TANABE YOSHIMITSU
IPC: B41M5/333
Filed: 1991-08-06
Abstract: A color-developing sheet using, as a color developer, polyvalent-metal-modified products of salicylic acid compounds composed mainly of a 3,5-di(.alpha.-methylbenzyl)salicylic acid derivative obtained by reacting a salicylic acid ester with an a-methylbenzyl halide in the presence of an acid catalyst and hydrolyzing the reaction product.  The color-developing sheet has excellent colour developability at low temperatures and gives a color of excellent water resistance.
Patent CA-2049898-A1 (CA)
Inventor: SATOH TSUGUO
IPC: C03B37/012
Filed: 1991-08-26
Abstract: A silica-based glass rod is inserted into a space portion of a mold.  Then, a slurry, which is obtained by dispersing a silica glass powder material in pure water, is poured into a molding space between the glass rod and the inner surface of the mold, whereby a porous glass shaped body is formed around the glass rod.  Drying this shaped body results in a silica glass base material which includes the glass rod and the porous glass shaped body surrounding the same.
Patent CA-2054687-A1 (CA)
Title: Imaging systems
Inventor: ASHBEY JAMES A
IPC: H04N13/349
Filed: 1990-04-30
Abstract: A 3D viewing system displays two displaced images on a screen. A  screen overlay positional between the screen and a viewer provides a different one of the two images to each eye of the viewer.
Patent CA-2056861-A1 (CA)
Title: Apparatus and method for photographing reflective objects
Inventor: HUEBNER ROGER F
IPC: G03B15/00
Filed: 1991-12-03
Abstract: ABSTRACT OF THE DISCLOSURE       A mask having a slot therein, which acts as an external camera shutter, thereby limiting the camera's view of the object.  The mask is comprised of an apparatus, which moves over and/or around the object, providing selective illumination of the reflective object during the photography.  Also, a method for photographically recording one or more images of a reflective object on film while limiting the camera's view of the object and while selectively illuminating the object.           C:(LMG)\SPECS'91\622042EP.CLM
Patent CA-2057612-A1 (CA)
Title: Selected peptides of the group-specific antigen (gag) of human immunodeficiency virus (hiv), the preparation and use thereof
Inventor: NIEDRIG MATTHIAS
IPC: C07K7/08
Filed: 1991-12-13
Abstract: The invention relates to selected peptides of the HIV gag protein and derivatives thereof which comprise at least one of the two peptide sequences NPGLLETSEGCAQ and AATLEEMMTA and are not larger than 50 amino acids.
Patent CA-2057939-A1 (CA)
IPC: B65D71/58
Filed: 1991-12-18
Abstract: ARTICLE CARRIER AND BLANK THEREFOR      ABSTRACT OF THE DISCLOSURE         A  basket  style  article  carrier includes a bottom wall, a pair of  side walls  foldably joined  to opposite side edges of  the bottom  wall, end panels foldably joined to each end of each side wall, a  riser panel  foldably joined  to the inner edge of the end panels at one end of the carrier, a pair of medial panels foldably  joined  respectively  to  the inner edges of  the end  panels at  the other  end of the carrier, a pair of handle  panels  foldably  joined  respectively  to the medial  panels  and  secured  in flat face contacting relation with the medial  panels,  cross  partition  structure foldably joined  to  each  medial  panel and a longitudinal reinforcing beam panel foldably joined  along its  top edge  to the bottom edge of  one medial panel and secured at one end to one of the medial panels and at the other end to one of the riser panels.
Patent CA-2060724-A1 (CA)
Title: Process for electrolytic production of alkali metal chlorate and auxiliary chemicals
Inventor: WANNGAERD JOHAN
IPC: C25B1/26
Filed: 1992-02-05
Abstract: Abstract The present  invention relates  to a process to limit the content of impurities in the production of alkali metal chlorate,  by  integrating  the production of chlorate with the production  of  chlorine  and  alkali  metal hydroxide, which auxiliary chemicals are used in the chlorate process. The alkali metal chlorate is produced by electrolysis  of a purified  electrolyte  containing  alkali  metal  chloride, alkalization  of  the  chlorate  electrolyte  obtained  and precipitation of  the chlorate formed by evaporation of the chlorate electrolyte. The very pure water  separated in the crystallizer and  alkali metal  chloride is  used in a mem-brane or diaphragm cell in the  production of  alkali metal hydroxide,  which  hydroxide  is  used in the production of alkali metal chlorate.  Either  pure  chlorine  or hydrogen chloride absorbed  in water  can be  used in acidification, at which  hydrogen chloride  is produced  from chlorine and hydrogen generated in the process.
Patent CA-2061611-A1 (CA)
Title: Health product
Inventor: THORNTON THOMAS F
IPC: A61F6/04
Filed: 1992-02-20
Abstract: ABSTRACT OF THE DISCLOSURE      Prophylactic device has a ribbed exterior surface, the ribs being generally parallel and commencing adjacent the distal or closed end of the device, each at an angle of about 10° to the longitudinal and arcing away from the longitudinal to terminate adjacent the proximate or open end at an angle of about 44° to the longitudinal.  The purpose of the ribs is to heighten stimu-lation of the woman.
Patent CA-2061682-A1 (CA)
Title: Process for recycling a paved surface and apparatus therefor
Inventor: WILEY PATRICK C
IPC: E01C7/06
Filed: 1992-02-21
Abstract: A process for recycling an asphaltic surface. The process comprises: (a) providing an asphaltic surface having an upper surface for recycling; (b) rupturing the upper surface to a depth of at least about 1.5 inches to provide a ruptured upper surface; (c) heating and mixing the ruptured upper surface on the asphalt surface to a temperature in the range of from about 100° to about 350°F to produce a heated, ruptured upper surface which is substantially free of moisture; and (d) pressing the heated, ruptured upper surface to provide a recycled pavement surface. An apparatus adapted for carrying out the process is also described.