baber/WOPTO huggingface dataset:
Patent CA-2012332-A1 (CA)
Title: Protective removable cover film for music compact disc and cimenatographic compact disc
Inventor: OLIVIERI ANTONIO
IPC: B65D81/00
Filed: 1990-03-16
Abstract: PROTECTIVE REMOVABLE COVER FILM FOR COMPACT DISCS .                A B S T R A C T   An unconstrained protective removable cover film for the music compact disc, and also for the cinematographical compact disc.  This tran-sparent cover film can be placed and adjusted on the compact disc.  It pro-tects the compact disc's micro-bytes information from scratches, dust, dirt and fingerprints without affecting the quality of sound and/or imagery. After extensive use of the " protective removable cover film " it can be removed and replaced at the user's will and needs.  As obvious, the pro-tective removable cover film improves the durability and longevity contained on a compact disc.                                                 .../2
Patent CA-2013469-A1 (CA)
Title: Gellable buffered aqueous composition and its use in enhanced petroleum recovery
Inventor: LOCKHART THOMAS P
IPC: E21B43/22
Filed: 1990-03-30
Abstract: A gellable aqueous composition particularly suitable for reducing the permeability of high-permeability zones in an oil reservoir is an aqueous solution comprising:          -   a) a water-soluble organic polymer cross-linkable by the effect of a polyvalent metal ion cross-linking agent;          - b) a Cr(III) ion cross-linking agent;          -   c) a buffer agent free or substantially-free of  ligand characteristics towards the cross-linking agent, and chosen from organic bases and carboxylic or sulphonic aromatic organic acids; the solution pH being adjusted to a value within the range of about 2 to about 7.
Patent CA-2013784-A1 (CA)
Title: Extrusion process of polyimide and polyimide pellet used for the process
Inventor: SARUWATARI MASUMI
IPC: C08G73/10
Filed: 1990-04-04
Abstract: ABSTRACT OF THE DISCLOSURE        Polyimide which is obtained by polymerization and consists essentially of recurring structural units of the formula (I):     (I)   wherein X is a single bond or a hexafluoroisopropylidene group, is processed to a form of pellet, followed by heat-treating to obtain crystallinity of 5 % or more, and fed to an extruder to obtain articles.
Patent CA-2017047-A1 (CA)
Inventor: WEERS JERRY J
IPC: C10L1/22
Filed: 1990-05-17
Abstract: Hydrocarbons, gas mixtures of hydrocarbons, and the like containing hydrogen sulfide are brought into intimate contact with a hydrogen sulfide scavenger prepared by reacting an alkylenepolyamine with formaldehyde, whereby the amount of hydrogen sulfide in the hydrocarbon is significantly reduced.
Patent CA-2020469-A1 (CA)
Title: Doppler control channel for a radar
Inventor: ASBURY JIMMIE
IPC: G01S13/931
Filed: 1990-07-05
Abstract: ABSTRACT OF THE DISCLOSURE    A doppler control circuit for a CW or pulse Doppler Radar system for monitoring not only the phase shift between echo signals from several targets but also the amplitude difference between the several targets and to further provide a phase lock loop which tunes the radar to a particular target among one or more targets from which echo signals return.  The circuit of this invention can be used in state of the art CW or Pulse Doppler type radar systems.
Patent CA-2021797-A1 (CA)
IPC: H04M1/724
Filed: 1990-07-23
Abstract: A control signal generator is provided to supply a control signal to a control unit of a telephone set having dial memories.  Information stored in a memory in the dial memories is forbidden to be erased, unless the control signal is supplied to the control unit.  As a result,  important information is protected from erroneous erasing in the dial memory.
Patent CA-2022120-A1 (CA)
Title: Injection molding cooled socket holder for a heated nozzle
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/73
Filed: 1990-07-27
Abstract: An injection molding integral cooled socket holder (10) to be seated in a well (64) in a cavity plate (12) to receive an elongated heated nozzle (14). A central tube portion (88) extends between a rear collar portion (84) and a forward socket portion (86) to form an elongated socket to receive the nozzle. The tube portion (88) has small diameter inlet and outlet tubes (90,92) received in longitudinal grooves (94,96) which carry a flow of cooling water which is received at the rear collar portion (84) to the forward socket portion (86). The water flows around a circular conduit (112) in the forward socket portion (86) to provide cooling adjacent the gate (32). The components of the socket holder (10) are integrally brazed together in a vacuum furnace. Socket holders are made with various preselected lengths to match different length nozzles (14) by cutting the central tube (88) portion including the inlet and outlet tubes (90,92) to different standard lengths. <IMAGE>
Patent CA-2022415-A1 (CA)
Title: Boat propeller protection device
Inventor: BOHRER FRED
IPC: B63H5/16
Filed: 1990-07-31
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention provides a protective device for propeller blades of a boat motor.  The device comprises a frame which circumscribes the propeller blades of a boat motor, spaced from their tips, to prevent the propeller blades from hitting an obstruction such as a reef during movement of the boat.   Mount means are associated with the frame to secure it in place about the propeller blades.  Preferably the frame is constructed in annular fashion and, when in position, is of a width extending from the forward most point of the propeller blades to their rear most point.
Patent CA-2023201-A1 (CA)
Title: Multi-function additive for lubricating oils
Inventor: COYLE CATHERINE L
IPC: C10M159/18
Filed: 1990-08-15
Abstract: ABSTRACT OF THE DISCLOSURE           A lubricating  oil  composition  is  provided which comprises a major amount of an oil of lubricating viscosity and a minor amount of an additive having  the formula Mo4S4L6 in  which L is a ligand selected  from dithiocarbamates, dithiophosphates, dithiophosphinates, thioxanthates, and mixtures  thereof and  in which  the ligands, L,  have  organo groups  having  a  sufficient number of carbon atoms  to render the additive  soluble in the  oil.   In general,  the  organo groups  of  the ligands, L, will be  the same,  although they  may  be different and they preferably are selected from  alkyl, aryl, substituted aryl and ether groups.  For  example, when L is a dialkyldithiocarbamate or a  dialkyldithio-phosphate, the alkyl groups will  have from about 1  to 30 carbon atoms.
Patent CA-2035724-A1 (CA)
Inventor: ISHIBASHI CHIHIRO
IPC: H01L25/065
Filed: 1991-02-05
Abstract: A power semiconductor device such as power thyristor including a semiconductor substrate which is clamped by first and second conductive members serving as the electrodes as well as heat sinks, and a plurality of heat pipes whose one ends are inserted directly into the conductive members.  A plurality of semiconductor substrates and temperature compensating plates are alternatively stacked one on another and conductive members are provided on outermost temperature compensat-ing plates to form an assembly.  The assembly is hermetically sealed by an insulating package formed by an insulator having a corrugated outer surface such that outer surfaces of the conductive members are exposed out of the package.  One or more heat pipes are inserted into the insulating package such that electrically insulating cooling medium filled in the heat pipes can be directly made into contact with the semiconductor substrates.  The heat pipes may be inserted into the conductive members or heat sinks provided in the assembly.
Patent CA-2038631-A1 (CA)
Title: Lithiated nickel dioxide and secondary cells prepared therefrom
Inventor: DAHN JEFFERY R
IPC: H01M10/36
Filed: 1991-03-19
Abstract: Lithiated   nickel   dioxide   cathode-active materials for electrochemical cells having the formula LixNi2-x-yMyO2,  with x  being between  about  0.8  and about 1.0,  M being one or more metals selected from cobalt,   iron,   chromium,   titanium,   manganese   and vanadium,  and y being less than about 0.2,  with the proviso that y is less than about 0.5 for cobalt, which material is substantially free of lithium hydroxide and lithium  carbonate.    The  materials  are  prepared  by providing a substantially homogeneous dry intermediate mixture  of  a  starting  material  containing  a  nickel compound selected from nickel oxide, nickel hydroxide, and mixtures thereof, and optionally including one or more  oxides  or  hydroxides  of  a  transition  metal selected   from  cobalt,   iron,   chromium,   titanium, manganese and vanadium, together with between about a 10 and about a 25% stoichiometric excess of lithium hydroxide.   The  mixture  is  heat  treated  at  a temperature  above  about  600 °C   in  an  atmosphere substantially  free  of  carbon  dioxide  and  having  a partial pressure ratio of oxygen to water vapor greater than about 15,  after which any lithium hydroxide or lithium carbonate present in the mixture is removed. Thermally stable lithiated nickel dioxide having a BET surface area  less than  about  3.0 m/g,  and  is  also disclosed,  as well as electrochemical cells prepared from the disclosed lithiated nickel dioxides.
Patent CA-2039770-A1 (CA)
Title: 2-aryl-6-hetarylpyridine derivatives
Inventor: YANAGI AKIHIKO
IPC: C07D401/04
Filed: 1991-04-04
Abstract: ABSTRACT OF THE DISCLOSURE         Herbicidal 2-aryl-6-hetarylpyridines of the formula    (I) in which R1   represents  hydrogen,  halogen,  alkyl,  alkoxy  or halogenoalkyl, R2   represents hydrogen, halogen or halogenoalkyl, R3 and R4 independently of one another represent hydrogen or alkyl, Het   represents in each case unsubstituted or substituted pyridyl, pyrazinyl, pyrrolyl, pyrazolyl, imidazolyl, thienyl, furyl, thiazolyl, isothiazolyl, oxazolyl or isoxazolyl, and Z    represents hydrogen, halogen or the groups -Xn-R5-1  or    , where Le A 27 559-US     X     represents oxygen or sulphur, R5-1  and R5-2 independently of one another represent in each case optionally substituted alkyl, alkenyl or alkynyl, R6    represents hydrogen or alkyl, or R5-2  and R6 together with the nitrogen atom to which they are bonded form a 5- to 7-membered satura-ted  or  unsaturated  ring  which  optionally contains a further hetero atom and which is optionally substituted by 1 or 2 alkyl groups, and n     represents 0 or 1, with certain exceptions.          Le A 27 559
Patent CA-2041310-A1 (CA)
Title: Hinged removable collar for oil drilling apparatus
Inventor: GODSON GARY
IPC: E21B7/06
Filed: 1991-04-26
Abstract: ABSTRACT      A removable collar for an adjustable sub for use in the directional drilling of oil and gas wells is hinged at one side for ease of installation and removal and bolted at the other side.  A set screw device within the collar body prevents loosening of the bolt when installed.  A set screw bore extends obliquely from the main bore.  A set screw is inserted completely into the set screw bore and the bolt is installed and tightened.  The set screw is then partially retracted and frictionally and positively engages the bolt head  to  resist  rotation  thereof.    A  lock  nut  is alternatively retained in a slot to prevent retraction of the bolt.
Patent CA-2041550-A1 (CA)
Title: Measuring apparatus and method
Inventor: SCRIVENER PAUL L
IPC: G01D5/26
Filed: 1991-04-30
Abstract: ABSTRACT               MEASURING APPARATUS AND METHOD    A single  light  source  (10)  provides  broadband light  for  an  intensity-based  sensing element  (12).          Broadband light reflected from the sensing element is split and passes through two narrowband filters (16, 17) having passbands which cover different wavelength ranges.    The  two  narrowband optical  signals  are detected by two detectors (20, 21) which generate two signals  (A, B).   A processing unit (22) divides the two signals to give a ratiometric determination of the measurand, thereby largely compensating for extraneous variations in the signals.
Patent CA-2045933-A1 (CA)
Title: Method and apparatus for decryption of an information packet having a format subject to modification
Inventor: HAWE WILLIAM R
IPC: H04L29/06
Filed: 1991-06-28
Abstract: METHOD AND APPARATUS FOR DECRYPTION OF AN INFORMATION PACKET HAVING A FORMAT SUBJECT TO MODIFICATION                 ABSTRACT OF THE DISCLOSURE A technique to facilitate decryption process-ing of information packets transmitted over a communica-tion network after encryption in accordance with a spe-cific network protocol, the details of which may be subject to later change as standards are developed or modified. Programmable registers are used in the decryp-tion process to hold information for identifying an in-coming information packet as being subject to the speci-fic protocol and requiring decryption, and identifying a starting location of a data field to be decrypted. Specifically one programmable register contains a first offset locating an identifier field in the packet, in which a cryptographic identifier will be found if the packet is one conforming to the protocol; another pro-grammable register contains a cryptographic identifier value that will be found in the identifier field if decryption is to be performed, and a third programmable register contains a second offset to locate the begin-ning of a data field to be decrypted.
Patent CA-2048161-A1 (CA)
Inventor: JARRY PHILIPPE
IPC: B22D25/00
Filed: 1991-07-30
Abstract: L'invention est relative à un procédé d'obtention par moulage de pièces bimatériaux formées par deux alliages d'aluminium dont l'un constitue l'âme et l'autre la matrice. Ce procédé consiste à mettre en oeuvre une âme, contenant éventuellement un squelette réfractaire, à enlever la couche naturelle d'alumine présente à la surface de l'âme, à revêtir immédiatement après l'ensemble ainsi obtenu d'un film imperméable aux gaz d'un métal tel que le nickel, à placer l'ensemble revêtu dans un moule que l'on remplit avec l'alliage de la matrice à l'état fondu à une température telle qu'au moins 30% de l'âme soit refondue superficiellement. Elle trouve son application dans la confection de pièces automobiles telles que les culasses de moteurs et l'insertion de conduits dans les pièces aéronautiques.
Patent CA-2048232-A1 (CA)
Inventor: WILLIAMS JERRY W
IPC: C08G18/22
Filed: 1991-07-31
Abstract: Abstract The present invention provides a pressure-sensitive adhesive composition and a method for producing the same.  The pressure-sensitive adhesive composition is produced by the combination of at least one free-radically photopolymerizable monomer and at least one set of polyurethane precursors, and a suitable photoinitiation system consisting of at least one salt of a cationic organometallic complex, an additional free-radical initiator and the application of sufficient energy to photopolymerize same.
Patent CA-2048930-A1 (CA)
Title: Apparatus and method for acquiring and processing dimension and flaw data on ultrasonically-inspected tubes
Inventor: KUTCHENRITER KEVIN W
IPC: G01N29/40
Filed: 1991-08-12
Abstract: W. E. 55,264 ABSTRACT OF THE DISCLOSURE      A data acquiring and processing apparatus includes a data  acquiring  portion  having  a  peak  and  hold component and a sample and hold component for receiving analog signals representing measured parameters of a workpiece being inspected and producing analog signals representing  maximums  and  minimums  of  the  measured parameters.    The  apparatus  also  includes  a  data processing  portion  having  an  analog-to-digital converter and a computer for converting analog signals to digital signals representing the maximum and minimum magnitudes of the measured parameters and storing the digital signals to make them accessible upon demand to an operator for analysis.
Patent CA-2049458-A1 (CA)
Title: Method and medium for packaging entomogenous nematodes
Inventor: PRUITT PAUL J
IPC: A01N63/12
Filed: 1990-02-15
Abstract: ABSTRACT OF THE DISCLOSURE       Entomogenous infective juvenile (IJ) nema-todes are prepared for storage and shipment by encas-ing viable IJs in a thin film which is permeable to oxygen, and which contains sufficient water to main-tain the IJs in a fully hydrated state.  The film is rigid enough to substantially immobilize the IJs, resulting in a reduction in the amount of oxygen and food reserves required, thus extending the shelf life of IJs.
Patent CA-2049637-A1 (CA)
Inventor: BAJAT THIERRY
IPC: G02B5/00
Filed: 1991-08-21
Abstract: TITRE de L'INVENTION Dispositif bistable sans frottement pour usage spatial, notamment pour l'obturation d'un orifice d'entrée d'un instrument optique spatial. TEXTE de L' Un Dispositif de montage et de commande en mouvement d'un élément (4) mobile par rapport à un support (3) entre deux positions extrêmes, caractérisé en ce qu'il comporte un bras (5) portant l'élément mobile et qui est monté pivotant autour d'un axe de rotation, une tige élastique en torsion (7) alignée selon cet axe et qui est fixée, en des zones décalées axialement, respectivement au bras et au support, deux butées mécaniques (9, 10) portées par le support et déterminant pour le bras deux configurations angulaires extrêmes dans lesquelles l'élément est dans ses positions extrêmes, la tige élastique en tension tendant à ramener le bras dans l'une prédéterminée de ces configurations, deux paires d'organes complémentaires de verrouillage magnétique (11, 13, 15 ; 12, 14, 15 ; 11', 13', 15' ; 12', 14', 15') portés respectivement par le support et par le bras, les organes complémentaires de l'une ou l'autre des paires étant adaptés à être en regard lorsque le bras est dans l'une ou l'autre des configurations extrêmes, et des moyens de lancement (11-15 ; 16'-23') portés par le support adaptés à donner une impulsion de lancement au bras depuis chacune vers l'autre des configurations extrêmes. (Figure 1 )
Patent CA-2050636-A1 (CA)
Inventor: VON TREBRA ROBERT J
IPC: G03F3/10
Filed: 1991-09-04
Abstract: Abstract of the Disclosure A composite film article which is a flexible, heat resistant, polymeric film material having a non-opaque, partially translucent white surface side, having a visible light opacity of from about 0.90 to about 0.99; and a non-opaque, black surface side having a visible light opacity of less than 1Ø  The article may be used as a base for images such that the images have a reduced optical dot gain.
Patent CA-2051537-A1 (CA)
Title: Sulfonamides
Inventor: HEISTRACHER ELISABETH
IPC: C07D333/38
Filed: 1991-09-17
Abstract: O.Z.  0050/41893 Abstract of the disclosure: Sulfonamides of the formula I                                         (I) where A is an unsubstituted or substituted aromatic or heteroaromatic radical; W is oxygen or sulfur; B is an unsubstituted or substituted furyl, thienyl, pyrrolyl, oxazolyl,  isothiazolyl,  imidazolyl,  pyrazolyl,  thia-diazolyl,  oxadiazolyl  or  triazolyl  radical,  and  the environmentally compatible salts thereof are prepared as described and are used as herbicides.
Patent CA-2052942-A1 (CA)
Title: Antibiotic c-3 dithioacetal-substituted carbapenem compounds, compositions, and methods of use thereof
Inventor: MARTEL ALAIN
IPC: A61P31/04
Filed: 1991-10-08
Abstract: ABSTRACT             A dithioacetal carbapenem of the formula           (I) in which R1 is hydrogen or C1-6 alkyl; n is 0, 1 or 2; R3 is hydrogen or C1-6 alkyl; R2 is C1-6 alkyl, phenyl optionally substituted with cyano, -CONH2, -CH2OH, -CH2NH2,  CONHNH2 or with up to 5 halogen atoms, C1-6 alkyl or C1-6 alkyloxy groups, phenylmethyl optionally substituted with up to 5 halogen atoms, C1-6 alkyl or C1-6 alkyloxy groups on the phenyl ring, or a radical represented by the formula -(CH2)p-X   in which p is 0 or 1; X is five-membered aromatic heterocyclic ring containing up to 1 sulfur, 1 oxygen or 4 nitrogen atoms, optionally substituted with a C1 -6 alkyl group, or six-membered aromatic heterocylic ring containing up to 4 nitrogen atoms, optionally substituted with a C1-6 alkyl group.   or a non-toxic pharmaceutically acceptable salt, physiologically hydrolyzable ester or solvate thereof.
Patent CA-2054640-A1 (CA)
Title: Pneumatic agricultural or logging tire
Inventor: BONKO MARK L
IPC: B60C9/02
Filed: 1991-10-31
Abstract: ABSTRACT OF THE DISCLOSURE         A PNEUMATIC AGRICULTURAL OR LOGGING TIRE     A pneumatic tire particularly suited for agricultural or logging use is described.  The tire has lateral edge lugs with projections extending axially outward of the tire's maximum section width.  The projections are radially inward of the ground contacting surface of the lug while also being radially outward of the inner tread surface.  The projection extends axially inwardly and radially outwardly from the axially-outer-limit to the ground contacting surface of the tread lug.  The projection further extends generally axially and radially inwardly from the axially-outer limit of the projection to the lateral edge of the inner tread surface from which the lug extends.
Patent CA-2054801-A1 (CA)
Title: Child safety restraint
Inventor: HUSPEN FRED
IPC: B60R22/10
Filed: 1991-11-01
Abstract: ABSTRACT OF THE DISCLOSURE A child safety restraint for a vehicle seat having a safety belt includes a stress plate having at least one safety belt slot for receiving the safety belt to secure the restraint to the seat, at least one harness slot and a harness for releasably securing a wearer's back to the stress plate, the harness including a pair of shoulder straps and a crotch strap secured at one end to the shoulder straps, the shoulder straps being configured to each pass through a respective harness slot in the plate so that the harness is slidably engaged on the plate.
Patent CA-2055547-A1 (CA)
Title: Catheter with adjustable external locking bolster
Inventor: BUMA SHELLEY J
IPC: A61M1/00
Filed: 1991-11-14
Abstract: ABSTRACT     A medical device is disclosed which may be useful for low profile gastrostomy feeding.  Catheter 10 cooperates with an adjustable external bolster (32) to prevent inward tube migration and can be locked in place to eliminate tube slippage.  Externally molded on the outside wall (11) of catheter (10) is a series of saw tooth rings (18) which cooperatively and adjustably fit with internal saw tooth rings (39) on bolster (32).  External flanges (37,38) on bolster (32) prevent tube migration after bolster (32) has been permanently positioned on catheter (10).
Patent CA-2057119-A1 (CA)
Title: Sleeve coupling for a branching or connecting point of cables
Inventor: MARX KARL-HEINZ
IPC: G02B6/24
Filed: 1991-12-05
Abstract: ABSTRACT OF THE DISCLOSURE       A sleeve coupling for a branching or connecting point of cables, particularly of communication cables with optical waveguides, which has a sleeve surrounding the branching or connecting point, and end bodies sealing the coupling in a liquid-tight manner at the ends.  Each end body contains at least one through opening for leading a cable into the sleeve coupling or for leading the cable out of the sleeve coupling.  The sleeve is a stable plastic tube with a longitudinal slot.  The end bodies each are provided with a circumferential surface on which the sleeve is supported.  The through openings are designed as radial slots adapted to receive the cables.  A heat-shrunk collar surrounds the sleeve and the end bodies.  In the entrance region of the sleeve coupling, there is provided an extension for the end body coated at least in part with a hot-melt adhesive.  The extension is in contact, at least in part, with the inner surface of the heat-shrunk collar.