baber/WOPTO huggingface dataset:
Patent CA-2084016-A1 (CA)
Title: Process for the preparation of substituted indenes and their use as ligand systems for metallocene catalysts
Inventor: ROHRMANN JUERGEN
IPC: C07C13/547
Filed: 1992-11-27
Abstract: The invention relates to a process for the preparation of a compound of the formula IV or IVa (see formula IV and IVa) in which R1-R5 are preferably hydrogen or alkyl, which comprises reacting a compound I   (see formula I) with a compound II   (see formula II) in which X1 and X2 are preferably halogen, to give the corresponding indanones, which are converted into the compounds IV and IVa by reduction and dehydra-tion. The compounds IV and IVa are important intermediate products for the preparation of chiral metallocene complexes which are suitable catalyst components for olefin polymerization.
Patent CA-2084212-A1 (CA)
Title: Scanning arrangement and method
Inventor: SHEPARD HOWARD
IPC: G06K7/10
Filed: 1992-12-01
Abstract: A scanning arrangement located within a scanning device which is operative for repetitively scanning indicia having parts of different light reflectivity, for example, bar code symbols, and more particularly, pertains to a novel scanning motor of the arrangement for enabling a scan element which is supported by a holder structure mounted on a mylar motor to implement angular oscillatory movements in a linear loan direction between a pair of loan end positions.      Hereby, pursuant to the structure of the scanning device, the scanning arrangement is preferably mounted on a single printed circuit board located within a lightweight scanning device of a hand-held housing of gun-shaped configuration which may be readily held and manipulated by a user of the scanning device. The structure of the scanning motor and of the scanning arrangement which are mounted on a printed circuit board is considerably simplified through the construction of the various components being essentially of molded plastic material, and through the utilization of a mylar leaf spring which limits the end scan positions of a scan element or mirror which is oscillated by a read-start device including a permanent magnet mounted on an arm of the holder for the scan mirror.
Patent CA-2086249-A1 (CA)
Title: Procedure and means for controlling a doctor coating process
Inventor: NIEMI MARKKU
IPC: B05C11/04
Filed: 1991-06-26
Abstract: The invention concerns a procedure for controlling the doctor coating process of a paper web, the locational implementation of two coating steps being regulated by moving the coating means relative to each other, in the direction of web travel. The invention further concerns a means for doctor-coating a paper web (1), comprising a preceding coating means (2) and a following coating means (5), which are movable relative to each other, in the direction of web travel.
Patent CA-2088738-A1 (CA)
Title: Method for impregnating organic fibers
Inventor: HABEREDER PETER
IPC: D06M15/643
Filed: 1993-02-03
Abstract: METHOD FOR IMPREGNATING ORGANIC FIBERS                    Abstract of the Disclosure A method for impregnating organic fibers which comprises treating organic fibers with an organosilicon compound composed of units of the general formula                   (I) in which R can be the same or different and represents a monova-lent organic radical, R1 can be the same or different and repre-sents a hydrogen atom or a monovalent organic radical, R2 can be the same or different and represents a radical -QSO3Mv, where Q is a divalent hydrocarbon radical, M is a cation and v is the recip-rocal value of the charge on M, a is 0, 1, 2 or 3, b is 0, 1, 2 or 3 and c is 0, 1, 2 or 3, with the proviso that the organosilicon compound has at least one radical R2 per molecule and the sum of a, b and c is less than or equal to 3.
Patent CA-2088885-A1 (CA)
Title: Precure Resistant Thermoset Resin for Molded Wood Composites
Inventor: TEODORCZYK ZYGMUNT
IPC: C08L1/00
Filed: 1993-02-05
Abstract: A process for the production of modified phenol-formaldehyde resins includes  the use of a difunctional phenolic compound as the phenolic component of the resins.  The inventive resins resist pre-curing and are useful in  the  production of molded wood composites produced, for example, by wet-dry forming processes.
Patent CA-2089437-A1 (CA)
Title: Adaptive cache miss prediction mechanism
Inventor: RYAN CHARLES P
IPC: G06F12/08
Filed: 1993-02-12
Abstract: In a data processing system which employs a cache memory feature, a method and exemplary special purpose apparatus for practicing the method are disclosed to lower the cache miss ratio for called operands. Recent cache misses are stored in a first in, first out miss stack, and the stored addresses are searched for displacement patterns thereamong. Any detected pattern is then employed to predict a succeeding cache miss by prefetching from main memory the signal identified by the predictive address. The apparatus for performing this task is preferably hard wired for speed purposes and includes subtraction circuits for evaluating variously displaced addresses in the miss stack and comparator circuits for determining if the outputs from at least two subtraction circuits are the same indicating a pattern yielding information which can be combined with an address in the stack to develop a predictive address. The cache miss prediction mechanism is adaptively selectively enabled by an adaptive circuit that develops a short term operand cache hit ratio history and responds to ratio improving and ratio deteriorating trends by accordingly enabling and disabling the cache miss prediction mechanism.
Patent CA-2090626-A1 (CA)
Title: Countercurrent regeneration process
Inventor: KUNZ GERHARD K
IPC: B01J49/00
Filed: 1993-03-01
Abstract: A method of regenerating an ion exchanger which is used to treat a solution introduced to the ion exchanger in a downward charging direction. The ion exchanger comprises a non-constrained bed of ion exchange material in the form of ion exchange granules and has a concentration profile through the ion exchange material after the solution has been introduced to the ion exchanger in the charging direction. The method in one embodiment comprises passing a regenerating solution upwardly through the non-constrained bed of ion exchange material in an intermittent pulsed flow comprising a pulse or up flow of regenerating solution, a subsequent non-flow pause time, followed by a down flow pulse in a direction opposite to the up flow. The duration and velocity of the pulse or up flow of regenerating solution is sufficient to hydrodynamically lift the ion exchange granules A controlled distance through all of the ion exchange granules without causing significant mixing of ion exchange granules between different layers of the ion exchange material. The duration of the subsequent non-flow pause time being of short duration to allow for some perceptible settling of the ion exchange granules, with the down flow pulse being sufficient to reduce the sedimentation time of the ion exchange granules to a fraction of the normal settling time for the granules in the absence of the down flow pulse Docket 4011 50630
Patent CA-2092087-A1 (CA)
Title: Sustained release compositions for treating periodontol disease
Inventor: DAMANI NALINKANT CHUNILAL
IPC: A61K9/22
Filed: 1991-09-09
Abstract: This invention relates to devices/compositions and methods for treating diseases of the oral cavity in humans and lower animals using non-biodegradable devices/compositions which are biocompatible but not bioerodible for releasing drugs in or around a periodontal pocket or gingival sulcus.
Patent CA-2094675-A1 (CA)
Title: Hammer wrench
Inventor: BETUZZI TIMOTHY J
IPC: B25B19/00
Filed: 1993-04-22
Abstract: ABSTRACT OF THE DISCLOSURE       A hammer wrench includes an elongate body having a first end and a second end.  An anvil is positioned at the first end of the body, whereby by striking the anvil a force is exerted upon the body.  A wrench head is positioned at the second end of the body having a front and a back.  The front of the wrench head has a socket to engage a rotatable fastener.  The back of the wrench head has a coupling adapted to receive an elongate handle whereby support is provided to safely maintain the wrench head in position while the anvil is being struck.
Patent CA-2097742-A1 (CA)
Inventor: SPENCER DUDLEY W C
IPC: B29C57/10
Filed: 1993-06-04
Abstract: TOTAL CONTAINMENT WELDING OF PLASTIC TUBES                Abstract of the Disclosure A pair of hollow plastic tubes are welded together by mounting each tube  in the clamp jaws of  a holder  in a bent condition to form the U-shape.  A structural element is utilized to create a space between the bight of the U-shape and the holder.          The bent tubes are disposed toward each other.   A tube section separating member is moved into contact with the bent tubes and through the space between each bight and its holder to create a set of two tube sections from each bent tube.  A tube section from one set is aligned with a tube section from the other set and the aligned sections are welded together.  The structural element may be a weld seam resulting from a prior welding.
Patent CA-2102123-A1 (CA)
Title: Reagent handling system for automated clinical analyzer apparatus
Inventor: MARKER EDWIN J JR
IPC: G01N35/04
Filed: 1992-07-21
Abstract: A reagent handling system for automated clinical analyzer apparatus (20). The reagent handling system includes a plurality of reagent packs (22) each carrying one or more reagents (53) for performing a particular assay on a sample (12) in the apparatus (20), and a carousel (21) for supporting one or more of the plurality of reagent packs (22) in the apparatus. The reagent packs (22) each include machine-readable identification (83) thereon for permitting automatic identification in the analyzer (20) of the reagent pack (22) and its position on the carousel (21) whereby any selected one of the plurality of reagent packs (22) may be randomly placed at any position on the carousel (21) and be automatically identified to enable a particular assay to be automatically performed on the sample (12). The system of the invention significantly reduces both apparatus set-up time and the risk of operator error.
Patent CA-2103021-A1 (CA)
Inventor: STAHL STEFAN
IPC: G01N33/569
Filed: 1992-05-11
Abstract: Recombinant DNA sequence comprising a first DNA fragment coding for a first amino acid sequence operating as a signal peptide operable in a Gram positive host, operatively linked to a second DNA  fragment coding for a second amino acid sequence not naturally found on the surface of Gram positive bacteria and capable of selective interaction, said second DNA  fragment being operatively linked to a third DNA fragment coding for a third amino acid sequence operable in a Gram positive host as a cell wall spanning and membrane anchoring sequence; an expression vector or plasmid containing such recombinant DNA sequence; Gram positive bacterial cell containing such vector or plasmid; and a process for selective isolation or identification of Gram positive bacterial cells.
Patent CA-2104344-A1 (CA)
Title: Rubber and plastic particles with a sulfonated skin layer, method and apparatus for making, and use of the sulfonated particles for an aggregate in cements, organic resins, cellulosics and so forth
Inventor: WALLES WILHELM E
IPC: C04B18/20
Filed: 1993-08-18
Abstract: Rubber and plastic particles, to especially include as recovered from recycle streams, can be made to have a sulfonated outer layer by treatment with a reactant gas containing sulfur trioxide. A silo apparatus can be employed to make these sulfonated particles, wherein untreated particles fall through the silo which is provided with a reactant gas supply. The sulfonated particles may optionally be neutralized, for example, with moist ammonia. These sulfonated particles can be used in articles of manufacture such as aggregates in cements, organic resins, cellulosics, and so forth, with beneficial properties being imparted to the composite. When used in a Portland cement, for example, increased performance concrete can result.
Patent CA-2104368-A1 (CA)
Inventor: ARNOLD EUGENE W
IPC: F15B9/12
Filed: 1993-07-02
Abstract: A fluid-operated power booster includes a housing having a main piston slidably mounted therein and a regulating chamber formed in the main piston. A regulating piston is mounted within the regulating chamber and is fixed to an input shaft. The input shaft has a valve mounted on it so that movement of the input shaft and regulating piston in a first direction permits the flow of working fluid into both a working chamber and the regulating chamber, while movement of the input shaft in a second direction causes working fluid to be exhausted from the working chamber. The regulating piston is biased by a mechanical spring whose force must be overcome to initiate movement of the regulating piston and thereby the flow of working fluid to achieve booster action. The output of the device is by way of an output shaft connected to the main piston.
Patent CA-2104397-A1 (CA)
Title: Low spill identical half coupling
Inventor: MAIVILLE RANDOLPH L
IPC: F16L37/373
Filed: 1991-12-26
Abstract: A ball-valve-type fluid coupling has identical interconnectable parts having low fluid spillage during disconnection. The rotatable ball valve is axially displaceable by a cam structure along a flow passage as the valve is rotated between open and closed positions. This prevents the valve from passing through the plane of a coupling connection end during valve operation. The valve exterior surface includes a flat coupling connection end sealing surface substantially coplanar to the coupling connection end when the valve is closed, to reduce trapping fluid and spillage.
Patent CA-2106545-A1 (CA)
Title: Simulated masonry column
Inventor: MACDONELL KENNETH D
IPC: E04C3/30
Filed: 1993-09-20
Abstract: ABSTRACT OF THE DISCLOSURE    A simulated masonry column construction, for providing a rectangular cross-section column having the exterior appearance of masonry and adapted to be supported on a post, comprises a plurality of horizontal post frames being supported by a plurality of horizontal side frames, four vertical corner struts secured to each of the side frames, a plurality of interlocking exterior cladding panels supported on the side frames on four sides of the column, and a cap covering the top of the column.
Patent CA-2107320-A1 (CA)
Title: Audio signal processing apparatus with optimization process
Inventor: HIBINO MASAHIRO
IPC: G11B20/02
Filed: 1993-09-29
Abstract: An audio signal processing apparatus performs the optimization process of an audio signal reproduced from a medium such as a compact disk.  Each of low-pass and high-pass filters effects a band division on the audio signal.  A peak analyzer detects the peak value of a low audio-range signal and outputs a control signal corresponding to the detected peak value to a voltage-controlled amplifier.  The voltage-controlled amplifier adjusts the level of the low audio-range signal in accordance with the control signal.  A mixture and distribution circuit combines the output of the voltage-controlled amplifier and the output of the high-pass filter and distributes the composite signal to corresponding power amplifiers for respectively driving speakers.  Thus, a process suited to each of various music sources can be achieved by controlling the level of a low audio-range component based on the level of the low audio-range signal.
Patent CA-2108695-A1 (CA)
Title: Granular laundry detergent compositions having improved solubility
Inventor: PANCHERI EUGENE J
IPC: C11D17/06
Filed: 1992-04-14
Abstract: Granular detergent compositions containing admixed sodium carbonate and low levels of admixed citric acid to increase solubility. The compositions preferably contain aluminosilicate detergent builders and preferably are free of phosphate builders. Also disclosed are processes for increasing solubility of granular detergent compositions.
Patent CA-2110181-A1 (CA)
Title: A method and an arrangement for measuring and adjusting the ice temperature of artificial ice rinks
Inventor: EGGEMAR BENGT W
IPC: G01J5/00
Filed: 1992-05-27
Abstract: A method for measuring and adjusting the temperature of surface ice in artificial ice rinks, in which water is frozen to ice with the aid of refrigeration channels arranged in the rink and through which refrigerant is passed by means of a refrigeration system and wherein the temperature of the ice is controlled by controlling the refrigeration power of the refrigerating system.  The method is mainly characterized in that the surface ice temperature is measured with the aid of at least one sensor, which functions to measure infrared radiation from the surface ice.  The signals produced by the sensor are processed in a control unit which controls the refrigerating system in a manner to bring the surface ice to a predetermined temperature.  The invention also relates to an arrangement for carrying out the method.
Patent CA-2110261-A1 (CA)
Title: Treatment of emulsions
Inventor: BROWNE GEOFFREY R
IPC: C02F1/52
Filed: 1992-05-29
Abstract: A process for separating the components of an emulsion. The process comprises, adjusting the pH of the emulsion to 4 or less, adding a coagulant to the emulsion, forming a substantially uniform dispersion of inert particulate carrier in the emulsion, adding a polyelectrolyte flocculent either during or after the step of forming the substantially uniform dispersion of inert particulate carrier in the emulsion to form floccs of the inert particulate carrier, the dispersed liquid phase, and the contaminants, allowing the floccs to settle, and separating the relatively clarified continuous liquid phase from the settled floccs.
Patent CA-2113873-A1 (CA)
Inventor: CHAN KWOK W
IPC: B60W50/08
Filed: 1994-01-20
Abstract: A control method/system is provided for controlling start from stop shifting operations of a vehicular semi-automatic transmission system (10) of the type automatically implementing selected gear changes of a mechanical change gear transmission (12) and requiring manual operation (3) of the vehicle master clutch (16) in start from stop conditions is provided. During engagement of a selected start ratio, the system controller (38) monitors for gear butt conditions and will warn the operator if such conditions are sensed.
Patent CA-2116540-A1 (CA)
Inventor: SALIVE HAROLD T
IPC: B42D15/00
Filed: 1992-10-08
Abstract: 2116540 9307006 PCTABS00021 An identification system involves the labeling and then tracking of grouped items such as logs, shipping containers, or packets of mail and reporting the current location of identified items during transport, processing and storage. Machine readable labels (400, 500) are provided, adapted for recognition and reading from within a cluttered scene. These labels (400, 500) have bordering indicia - used for locating purposes - distinguishable from inner informative indicia. Typical bordering indicia include either a series of small, substantially similar marks like filled or hollow ovals or one circle or part of a circle, or a sequence of locating symbols or characters. Typical informative indicia include dots, bars, rings or regional text characters. Multiple coding methods and spatial (e.g. Latin Square) replication of indicia are used to minimize errors.
Patent CA-2118970-A1 (CA)
Title: Preparative analytical technique to isolate surfactant from oil/water emulsions
Inventor: PRINCEN HENRICUS M
IPC: B01D21/26
Filed: 1994-03-14
Abstract: ABSTRACT          This invention is directed to a preparative analytical technique for isolating a surfactant from an oil/water emulsion.  First, a sludge sample containing said emulsion is separated into separate  oil,  water  and  solid phases.    Thereafter,  water droplets are injected into the oil phase.  The water droplets fall through the oil phase, causing surfactant in the oil phase to adhere to said droplets which form a high-internal-phase-ratio (HIPR) water-in-oil emulsion that is rich in surfactants. This emulsion is subsequently separated into an oil and a water phase.  The separated surfactant-rich oil phase is then analyzed to obtain information concerning the surfactant.
Patent CA-2122036-A1 (CA)
Title: Bacterial nitroreductase for the reduction of cb 1954 and analogues thereof to a cytotoxic form
Inventor: MELTON ROGER
IPC: C12N15/53
Filed: 1992-10-23
Abstract: The invention provides a nitroreductase, obtainable from a bacterium having the following characteristics as exemplified by examples isolated from Escherichia coli B and Bacillus amyloliquifaciens:  1) it is flavoprotein having a molecular weight in therange 20-60 Kilodaltons; 2) it requires either NADH or NAD(P)H or analogues thereof as a cofactor; 3) it has a Km for NADH or NAD(P)H in the range 1-100 µM; and 4) it incapable of reducing either of both nitro groups of CB 1954 and ana-logues thereof to a cytotoxic form e.g. the hydroxylamine. The sequence of one such nitroreductase is shown in Seq. ID No. 1. The nitroreductase maybe conjugated to a tumour targeting agent such as a monoclonal antibody and used to convert prodrugs into active antitumour agents. Such prodrugs and drugs are also provided.
Patent CA-2127046-A1 (CA)
Inventor: FRY TED
IPC: D06C7/02
Filed: 1994-06-29
Abstract: An  improved  textile  dryer  has  a  dryer  fabric  for transporting a textile through at least one through-air drying zone.  The fabric is woven from synthetic monofilament yarns.          The monofilament yarn dimensions and fabric weave pattern are selected to provide permeability greater than 900 CFM and initial tensile strength measured in the machine direction of greater than about 100 PLI.   The monofilament yarns are formed from polymers which provide high thermal and hydrolytic stability, thereby enabling the dryer fabric to maintain strength for extended use in the textile drying environment.   Preferred monofilament yarns are made of unalloyed polyphenylene sulfide.
Patent CA-2127146-A1 (CA)
Title: Ski pole assembly with scraper
Inventor: KLEMENT RONALD J JR
IPC: A63C11/22
Filed: 1994-06-30
Abstract: SKI POLE ASSEMBLY WITH SCRAPER          ABSTRACT OF THE DISCLOSURE A ski pole assembly includes a pole and a snow head/scraper mounted toward the lower end of the pole. The snow head/scraper is in the form of disc-like member defining an upper surface and a lower surface, with a peripheral edge extending therebetween.  The peripheral edge includes a substantially flat, planar surface.  The intersection between the substantially flat, planar surface and one of the surfaces of the snow head/scraper member defines a substantially linear scraping edge, which is used by a skier to scrape snow from the sole of the skier's boot.
Patent CA-2128152-A1 (CA)
Title: Wireline wet connection
Inventor: VAN STEENWYK DONALD H
IPC: H01R13/523
Filed: 1994-07-15
Abstract: ABSTRACT OF THE DISCLOSURE           A  releasable   and reseatable   electrical connection between female and male members associated with disconnectible sections of wireline used in a drill string in a borehole comprising the male member defining a first axis and having an externally exposed electrical contact ring, extending about the axis; the female member defining a second axis and having a conductive part extending at least part way about the second axis; and a spring element in electrical connection with the part and inwardly exposed for making electrical contact with the contact ring upon telescopic interfitting of the members.