baber/WOPTO huggingface dataset:
Patent CA-2226549-A1 (CA)
Title: Coating composition
Inventor: RIL JARI
IPC: H01B3/44
Filed: 1996-07-10
Abstract: Conventional coating compositions have the disadvantage of being insufficiently coatable and having an unsatisfactory environmental stress cracking resistance. Now a coating composition has been found which has both good coating processability and environmental stress cracking resistance. It comprises a multimodal ethylene polymer, which contains from 80 to 100 % by weight of ethylene repeating units and from 0 to 20 % by weight of C3-C10 .alpha.-olefin repeating units, has a density of between 0.915 g/cm3 and 0.955 g/cm3, and is a blend of at least a first ethylene polymer having a first average molecular weight and a first molecular weight distribution and a second ethylene polymer having a second average molecular weight, which is higher than said first average molecular weight, and a second molecular weight distribution, said blend having a third average molecular weight and a third molecular weight distribution.
Patent CA-2227031-A1 (CA)
Title: Vitrage a revetement antireflet
Inventor: ZAGDOUN GEORGES
IPC: G02B1/10
Filed: 1997-05-14
Abstract: L'invention concerne un vitrage comportant sur au moins une de ses faces extérieures un revêtement antireflet "A" comprenant un empilement de couches de matériaux d'indices de réfraction alternativement forts et faibles. Au moins une partie des couches dudit empilement sont des couches pyrolysées, notamment la dernière couche.
Patent CA-2229480-A1 (CA)
Title: Electrode
Inventor: TAMADA JANET
IPC: G01N27/30
Filed: 1996-07-16
Abstract: An electrode assembly for sensing an electrochemical signal diffused from a source to a working electrode which assembly includes a scavenging electrode is disclosed. The electrode of the invention is comprised of 1) a working electrode; 2) a scavenging electrode; and 3) an electrically insulating gap defined by adjacent edges of 1) and 2) and electrically isolating 1) and 2). The scavenging electrode substantially reduces or eliminates "edge-effects" or error in signal transported to the working electrode via a path which includes a radial vector component, i.e., eliminates chemical signal other than that which moves to the catalytic surface of the working electrode via a path which is substantially perpendicular to catalytic surface of the working electrode.
Patent CA-2231596-A1 (CA)
Title: Non-flatting slip-enhancing additives for coatings
Inventor: STECKEL THOMAS F
IPC: C09D7/63
Filed: 1998-03-09
Abstract: The present invention is directed to coating additives useful as non-flatting slip-enhancing agents. The additives are the non cross-linked reaction products of (a) an amine represented by the formula NR1R2H wherein each R is independently selected from the group consisting of hydrocarbyl groups and hydroxyalkyl groups; or by the formula D-(NGH)y wherein D is a multivalent organic radical having 2 to about 30 carbon atoms; each G independently is hydrogen, a hydrocarbyl group, or hydroxyalkyl group; and y is at least 2; provided that if D is an organic radical containing 2 carbon atoms and y is 2, at least one G must be a hydrocarbyl group of 1 to 30 carbon atoms, and (b) a carboxylic acid of the formula B-(COOH)z, or a reactive equivalent thereof, wherein B is a direct link between two COOH groups, a mono- or a multivalent organic radical, and z is 1-5; wherein the resulting product contains at least 2 hydrocarbyl groups each having about 12 to about 30 carbon atoms. The above compositions can enhance the slip properties of a coating composition while retaining the initial gloss.
Patent CA-2232827-A1 (CA)
Inventor: PURDUE KELLY RAY
IPC: G10D9/00
Filed: 1998-03-23
Abstract: An apparatus for marking slide positions on a conventional trombone having an inner hollow slide slidingly journalled in an outer hollow slide includes magnet ic sensing means mountable on the outer hollow sleeve for sensing proximity of a magnet mounted w ithin the inner hollow slide. The magnet sensing means are mountable in longitudinally spaced ap art slide positions on the outer hollow sleeve. A magnet is mountable within the inner hol low slide and positionable so as to register the proximity of the magnet to the magnet sensing means by feedback to a user sliding the outer hollow sleeve over the inner hollow sleeve.
Patent CA-2232869-A1 (CA)
Title: Chewing gum manufacture using high efficiency continuous mixing
Inventor: SCHNELL PHILIP G
IPC: A23G4/00
Filed: 1995-09-13
Abstract: A method is provided for the total manufacture of chewing gum on a continuous basis.  The method uses a continuous high efficiency mixer which is configured for the total manufacture of a wide variety of chewing gum products.  Pursuant to the present invention, a preblend of glycerin and syrup is added to the mixer.
Patent CA-2233079-A1 (CA)
Inventor: SMITH ROBERT E
IPC: C12Q1/68
Filed: 1996-09-25
Abstract: A method of characterizing a nucleic acid molecule is disclosed. The method comprises synthesizing DNA in the presence of a reaction mixture comprising a nucleic acid template, a primer molecule, an enzyme that extends the primer so that a DNA molecule may be synthesized, four canonical deoxynucleoside triphosphates and at least one non-canonical deoxynucleoside triphosphate. The non-canonical deoxynucleoside triphosphate is incorporated into the synthesized DNA in place of a portion of only one canonical deoxynucleoside triphosphate. The synthesized DNA is treated with an N-glycosylase that excises a base portion of the non-canonical deoxynucleoside triphosphate from the synthesized DNA. The DNA is then treated in such a manner that the phosphodiester backbone of the DNA is broken at the abasic site, thus creating at least two DNA fragments. The fragments are separated according to size.
Patent CA-2235716-A1 (CA)
Inventor: MACAUDIERE PIERRE
IPC: C01F17/241
Filed: 1996-11-22
Abstract: PCT No. PCT/FR96/01852 Sec. 371 Date Nov. 19, 1998 Sec. 102(e) Date Nov. 19, 1998 PCT Filed Nov. 22, 1996 PCT Pub. No. WO97/19022 PCT Pub. Date May 29, 1997A method for processing soot containing one or more rare earths, wherein said soot is contacted with an oxygen-containing gas, is disclosed. The method comprises (a) preparing an aqueous phase comprising a dispersion of at least one oxygenated metal compound; (b) simultaneously or consecutively contacting a suspension from step (a) with an organic phase including at least one amphiphilic agent and preferably an organic mixture or compound as the solvent; and +E,crc c+EE  recovering the organic phase. Said oxygenated metal compound is produced by means of a method according to which a solution including at least one soluble rare-earth salt, usually an acetate and/or a chloride, is prepared; the solution is contacted with a basic medium and the resulting reaction mixture is maintained at a basic pH; and the precipitate formed by atomization or freeze-drying is recovered. Said method is useful in inorganic synthesis and catalysis.
Patent CA-2236807-A1 (CA)
Inventor: KANDEL RITA
IPC: A61K35/12
Filed: 1996-11-05
Abstract: Matériau biologique comprenant une couche continue de tissu cartilagineux reconstitué in vitro et contenant des éléments associés à la minéralisation du cartilage. On peut cultiver ce matériau biologique avec un agent minéralisant, afin d'obtenir un matériau biologique minéralisé. Ce matériau biologique minéralisé est caractérisé par le fait qu'il possède une composition biochimique et une organisation physiologique sensiblement similaires aux zones profondes et contiguës de cartilages calcifiés de cartilages articulaires que l'on trouve chez l'animal in vivo. Des procédés de préparation et d'utilisation de ces matériaux biologiques sont également décrits.
Patent CA-2242001-A1 (CA)
Inventor: YAN WEIPENG
IPC: G06F17/30
Filed: 1998-06-29
Abstract: A method and apparatus for estimating the number of distinct values in a database table selects one of several numerical methods to solve a model of the number of distinct values in a database table based on a table size, a sample size, and the number of distinct values in the sample.  The sample may be a sample previously collected for purposes other than to estimate the number of distinct values, and the number of records in the sample and the number of distinct values in the sample may be determined at the time the sample was collected.
Patent CA-2242572-A1 (CA)
Inventor: MCCAGUE RAYMOND
IPC: C07B55/00
Filed: 1997-02-10
Abstract: L'invention concerne un procédé de racémisation d'un composé enrichi de manière énantiomère de la formule (3): X-(Ar)(Ak)C-(CH¿2?)¿2?-Y comprenant le traitement du composé enrichi de manière énantiomère (3) avec une base afin d'obtenir un anion (4), éventuellement sous forme protonée, qui est ensuite combiné à CH¿2?=CH-Y?1¿ afin d'obtenir un racémique (3); dans lesdites formules Ar = aryle ou hétéroaryle, Ak = alkyle C¿1-20?, X = CN, CO¿2?R, CONR?1¿R?2¿, COR, Y et Y?1¿ sont sélectionnés indépendemment parmi CN, CO¿2?R, CONR?1¿R?2¿ et COR, et R, R¿1? et R¿2? sont sélectionnés indépendemment entre H et alkyle C¿1-20?; éventuellement sous forme d'un sel de ce composé. Ce procédé de racémisation peut être utilisé comme étape d'une synthèse efficace de vérapamil ou d'aminoglutéthimide enrichis de manière énantiomère.
Patent CA-2247310-A1 (CA)
Inventor: WITTRISCH CHRISTIAN
IPC: E21B23/00
Filed: 1998-10-08
Abstract: La présente invention concerne un système pour déplacer des instruments dans un conduit comportant une portion fortement inclinée par rapport à la verticale. Le système comporte en combinaison: un ensemble d'instruments lié mécaniquement à une première extrémité de moyens de déplacement à énergie électrique, une tige semi-rigide en matériau composite pouvant être enroulée sur un touret et comportant au moins un conducteur électrique. - La présente invention concerne également une méthode de mise en oeuvre du système. - Application aux puits pétroliers fortement inclinés.
Patent CA-2248871-A1 (CA)
Inventor: HAURI BERNHARD
IPC: B43L9/16
Filed: 1997-02-24
Abstract: The invention concerns a pair of compasses with a holder part (11) which is designed with a rotationally symmetrical spherical surface (12), thereby producing a simple and stable structure which is easy to use. The holder part (11) is rigidly connected to one of the two compass legs (1, 4). Replaceable writing implements (10) and widened holder parts (15, 16) on the lower sections of the compass legs (1, 4) further facilitate use.
Patent CA-2248912-A1 (CA)
Title: Method and apparatus for improved fiber optic light management
Inventor: WACH MICHAEL LEONARD
IPC: G02B6/04
Filed: 1997-03-13
Abstract: Improved techniques for manipulation and management of fiber optic light. An improved fiber optic probe assembly for low light spectrographic analysis improves response to subtle light-matter interactions of high analytical importance and reduces sensitivity to otherwise dominant effects. This is accomplished by adjusting the illumination and collection fields of view in order to optimize the probe's sensitivity. Light manipulation is applied internal to the fiber so that the probe's delivery pattern and field of view do not require external manipulation and are not adversely affected by investigated media. This allows the light delivery pattern or field of view or both to be aggressively steered off-axis to achieve significant increased performance levels. Aggressive beam steering is accomplished by employing internally reflective surfaces in the fiber. A reflective metal coating or low refractive index coatings or encapsulants can be used to ensure total internal reflection. The fibers also incorporate filters, cross-talk inhibitors and other features that provide a high performance probe in a robust package. Design variations provide side viewing, viewing through a common aperture, viewing along a common axis, and other features.
Patent CA-2250432-A1 (CA)
Title: Method of making polymers containing hydroxamate functional groups
Inventor: LEWELLYN MORRIS E
IPC: B01D21/01
Filed: 1997-03-26
Abstract: A process is disclosed for the formation of highly anionic hydroxamic acid polymers whereby (meth)acrylic acid polymers are esterified in aqueous solution to poly(meth)acrylates. The resultant polymers are then reacted with an hydroxylamine to produce hydroxamated (meth)acrylic acid containing polymers. The esterified polymers, their hydroxamated derivatives and their use to flocculate Bayer Process streams are also disclosed.
Patent CA-2250573-A1 (CA)
Title: Method and apparatus for locating a digital control channel in a downbanded cellular radiocommunication system
Inventor: PRZELOMIEC THOMAS A
IPC: H04L1/00
Filed: 1997-03-24
Abstract: A method and system for locating control channels, particularly digital control channels, are described. By grouping the channels which are candidates for carrying supervisory messages in blocks indicative of their relative likelihood for being used as control channels, a mobile station can begin its search for a control channel with channels which are most likely to actually be control channels.
Patent CA-2251433-A1 (CA)
Inventor: KERFOOT DEREK GEORGE EAGLAND
IPC: C22B3/08
Filed: 1998-10-21
Abstract: There is disclosed a process for separating and recovering nickel and copper values from a nickel-copper matte which may contain iron and arsenic.  Finely divided nickel-copper matte undergoes one or more steps of sulphuric acid leaching at atmospheric pressure to produce a nickel sulphate solution and an iron and/or arsenic containing copper-rich sulphide residue. The copper-rich sulphide residue is repulped in sulphuric acid solution to selectively redissolve most of the iron and arsenic and the iron and arsenic containing solution is separated from the copper-rich residue. The iron and arsenic are largely precipitated from the leach solution in a pressure hydrolysis step and the iron and arsenic containing precipitate is separated and discarded.  The iron and arsenic-depleted solution is recombined with the copper-rich sulphide residue from the acid repulp step and the resulting slurry is treated in a non-oxidizing pressure leach in which nickel arsenic and iron are extracted. The process produces a nickel sulphate solution containing low levels of copper, iron and arsenic and a copper sulphide product containing low levels of nickel, iron, arsenic and other impurities.
Patent CA-2251522-A1 (CA)
Title: Vehicle mirror assembly
Inventor: BODDY IAN
IPC: B60R1/078
Filed: 1998-10-27
Abstract: The present invention relates to a rearview mirror assembly for installation on the side of a motor vehicle. The assembly comprises a fixed support structure constructed and arranged to be mounted on the side of the motor vehicle exterior such that the assembly extends laterally outwardly with respect to the vehicle. A mirror housing structure is mounted to the support structure for angular movement about a generally vertically extending axis with respect to the vehicle. A movable mirror housing is slidably mounted to the mounting structure. The housing has a mounting structure engaging surface engaging the mounting structure in tightly fit relation to prevent relative vibratory movements between the housing and the mounting structure as a result of vehicle vibrations. A mirror is mounted to the mirror housing. The mirror is positioned and configured to reflect images of objects disposed rearwardly of the mirror assembly to a drive seated within the vehicle. The tightly fit relation between the mounting structure engaging surface and the mounting structure is such that (1) the mirror housing can be manually repositioned laterally towards or away from the vehicle through an infinite range of positions while the mirror faces rearwardly with respect to the vehicle by manually applying lateral force to said housing directed towards or away from the vehicle sufficient to overcome the tightly fit relation without performing additional manual releasing steps and (2) the mirror housing will thereafter remain in a selected one of the positions absent application of lateral force to the housing sufficient to overcome the tightly fit relation without performing additional manual securing operations.
Patent CA-2252919-A1 (CA)
Inventor: LAROYE MARIE-PAULE
IPC: C12C7/04
Filed: 1997-05-02
Abstract: The present invention provides worts with increased yield and improved filterability as well as a process for preparing said wort comprising the steps of: (a) preparing mash from malted or unmalted cereals, or a mixture of malted and unmalted cereals, in the presence of a mixture of enzyme activities, (b) filtering the mash so obtained to obtain the wort, wherein said mixture of enzyme activities is selected from a mixture comprising at least .beta.-glucanase activity and .alpha.-L-arabinofuranose releasing activity or a mixture comprising at least .beta.-glucanase activity endo-xylanase activity and .alpha.-arabinofuranose releasing activity.
Patent CA-2255391-A1 (CA)
Title: Disconnect feature for interrupter
Inventor: OPFER JOHN C
IPC: H01H33/02
Filed: 1998-12-09
Abstract: A disconnect feature is provided for a circuit interrupter that is conveniently incorporated with the circuit interrupter. The disconnect feature is operable between closed and open positions, providing a visible open gap in the open position. The disconnect feature includes a pivotally mounted contact arrangement that is supported with respect to the circuit interrupter. The pivotally mounted contact arrangement cooperates with an interengaging contact carried by a contact terminal of the circuit interrupter. In specific arrangements, interlock features are provided to disable operation of the circuit interrupter when the disconnect feature is moved out of the closed position. In one arrangement, the disconnect feature is blocked from operation until the circuit interrupter is operated to an open circuit position.
Patent CA-2261265-A1 (CA)
Title: Integrity monitoring method and apparatus for gps and dgps receivers
Inventor: ADAMS WAYLAND K
IPC: G08G5/00
Filed: 1996-07-25
Abstract: A fail safe GPS system for an aircraft moving along a desired trajectory within vertical and horizontal limits using first and second redundant GPS receivers a first of which is connected to the avionics equipment of the aircraft and to an alarm and the second of which is connected only to the alarm so that if a malfunction in the flight management system occurs both GPS's will cause the alarm and if a malfunction in the first GPS system occurs, so that the aircraft exceeds the vertical or horizontal limits, the second GPS system will cause the alarm.
Patent CA-2265546-A1 (CA)
Inventor: GAYDOSH KEVIN D
IPC: B65D23/10
Filed: 1997-09-09
Abstract: A blow molded plastic container (10) including a neck finish (12), a shoulder portion (14), a sidewall (16), an interior, and a base (14) all integrally formed with one another. Two indentations (20) in the sidewall (16) create a handgrip and a web (26) extends generally across the interior of the blow molded container (10) between said two indentations (20). A plurality of generally downwardly extending support feet (30) include two short feet (30A, 30D) and four long feet (30B, 30C, 30E, 30F), the height being measured from a horizontal datum. Separating the support feet (30) are a plurality of first and second trap formations (32). The short feet, which are located at ninetydegrees relative to the web (26), and the long feet decrease in height as the container is cooled after molding. When placed under pressure, the feet (30) move in different manners but retain approximately the same height resulting in a container having a stable base.
Patent CA-2267566-A1 (CA)
Title: Apparatus and method for issuing documents
Inventor: VOGT PAUL J
IPC: G06F40/191
Filed: 1997-10-02
Abstract: An automated negotiable instrument dispenser. Automatic negotiable instrument dispensers according to the present invention provide convenient, secure and efficient means for loading, selling and reporting activity relating to the dispensers.
Patent CA-2267777-A1 (CA)
Inventor: JENSEN RICHARD A
IPC: H04B10/08
Filed: 1997-10-08
Abstract: An improved monitoring system for monitoring a fiber optic transmission system using optical side tones. The monitoring system includes a line monitoring equipment (LME) (12) connected to a portion of an optical transmission system. The LME includes a pseudo-random sequence (PRS) tone generator (14) for generating a PRS tone, a laser transmitter (16) for transmitting an LME optical side tone based on the PRS tone. The LME includes a delay system (20) for delaying the PRS tones, an optical filter (26) for passing only the wavelength of the LME side tone. A plurality of data channels are transmitted over the system using WDM. A coupler is used to combine the WDM data with the LME side tone. A repeater (36) having an optical loop-back coupler (42) returns a portion of the combined signal to the LME. The comparator/correlator correlates (22) the delayed PRS tones with the LME side tone returned by each repeater.
Patent CA-2270591-A1 (CA)
Inventor: DUPUIS CHRISTINE
IPC: A61K8/00
Filed: 1997-10-27
Abstract: The invention concerns a cosmetic composition for treating keratinous fibers, in particular hair, containing at least an anionic or non-ionic polymer and at least one silicon comprising at least a carboxylic acid function, as well as the method for treating keratinous fibers using this composition.
Patent CA-2270598-A1 (CA)
Title: Method for controlling oxygen delignification of pulp
Inventor: HAEGGQVIST JAN-ERIC
IPC: D21C9/10
Filed: 1997-11-06
Abstract: A method of controlling oxygen delignification of pulp, i.e. reduction of the kappa number of the pulp, where the delignification is carried out in two stages, and the main portion of the chemicals required for the delignification is added to the first stage. The ingoing kappa number of the pulp prior to the delignification and the reduction of the kappa number of the pulp during the total delignification in the two stages are used for adjusting the chemical addition to the first stage. The control is carried out so that higher ingoing kappa number yields lower charge and higher kappa number reduction yields higher charge, calculated per reduced kappa number unit. Said chemical addition to the first stage in its tum is used for control the temperature in the second stage.
Patent CA-2273601-A1 (CA)
Inventor: BOSSO SERGIO
IPC: H01P11/00
Filed: 1999-06-04
Abstract: The invention relates to optical birefringent waveguides, acousto-optical devices using such optical waveguides and an acoustic waveguide formed in a substrate as well as a manufacturing method therefore. The optical waveguides of the invention exhibit a small birefringent variation with respect to a change of waveguide parameters, if the fundamental mode propagating in the optical waveguide has a propagation constant near to the cut-off condition. The optical waveguide dimensions are typically chosen such that the cut-off wavelength of the waveguide is below 1650 nm for an operating wavelength in the window between 1530 nm and 1565 nm. The acousto-optic mode converter using such optical waveguides have a superior conversion characteristic over the conversion frequency with reduced side lobes. Therefore, using the thin and narrow optical waveguides of the invention, a superior performance of the acousto-optical devices using such an optical waveguide can be obtained.
Patent CA-2277152-A1 (CA)
Inventor: WELLS ROBERT LEE
IPC: A61K6/00
Filed: 1998-01-21
Abstract: La présente invention concerne des compositions améliorées de nettoyage pour soins personnels renfermant un système de tensioactifs, une quantité supérieure à 0,1 % environ mais inférieure à 1 % d'un polymère soluble dans l'eau anionique ou non ionique, un initiateur de séparation de phase et de l'eau. Ces compositions présentent des avantages accrus de formation de mousse et de conditionnement.