baber/WOPTO huggingface dataset:
Patent CA-2094103-A1 (CA)
Title: Waste treatment process for removal of contaminants from aqueous, mixed-waste solutions using sequential chemical treatment and crossflow microfiltration, followed by dewatering
Inventor: VIJAYAN SIVARAMAN
IPC: C02F1/52
Filed: 1993-04-15
Abstract: WASTE TREATMENT PROCESS FOR REMOVAL OF CONTAMINANTS FROM AQUEOUS, MIXED-WASTE SOLUTIONS USING SEQUENTIAL CHEMICAL TREATMENT AND CROSSFLOW     MICROFILTRATION, FOLLOWED BY DEWATERING                           ABSTRACT     In processes of this invention aqueous waste solutions containing a variety of mixed waste contaminants are treated to remove the contaminants by a sequential addition of chemicals and adsorption/ion exchange powdered materials to remove the contaminants including lead, cadmium, uranium, cesium-137, strontium-85/90, trichloroethylene and benzene, and impurities including iron and calcium.  Staged conditioning of the waste solution produces a polydisperse system of size enlarged complexes of the contaminants in three distinct configurations:  water-soluble metal complexes, insoluble metal precipitation complexes, and contaminant-bearing particles of ion exchange and adsorbent materials.  The volume of the waste is reduced by separation of the polydisperse system by cross-flow microfiltration, followed by low-temperature evaporation and/or filterpressing.  The water produced as filtrate is discharged if it meets a specified target water quality, or else the filtrate is recycled until the target is achieved.
Patent CA-2094498-A1 (CA)
Inventor: YAMAUCHI MASAHIRO
IPC: F24D13/02
Filed: 1992-08-25
Abstract: Panneau chauffant comportant une plaque de métal (2) dont la partie inférieure est dotée de corps en matériau céramique CPT (1). La surface correspondant aux corps en matériau céramique à la partie supérieure de la plaque est recouverte d'un bon isolant thermique ou d'une lame d'air isolante (4). Des matériaux (3) thermiquement conducteurs sont utilisés pour recouvrir les pièces autres que les corps en matériau céramique CPT; un revêtement de finition (5) est utilisé pour recouvrir la face supérieure de la plaque métallique (2). De préférence, la plaque de métal (2) comporte un réseau de rainures rectilignes régulièrement espacées, sous lesquelles sont regroupés les corps en matériau céramique CPT (1); à l'intérieur des rainures, les vides d'air (4) assurent une bonne isolation thermique; le revêtement de finition (5) recouvre la partie avant de la plaque de métal (2). Malgré sa simplicité structurelle, le panneau chauffant peut supporter une charge importante tout en éliminant le risque de surchauffe localisée.
Patent CA-2094819-A1 (CA)
Inventor: SWIFT LAWRENCE K
IPC: D21C3/22
Filed: 1991-10-07
Abstract: Procédé de préparation de pâte de cellulose dans lequel le traitement de la pâte de cellulose est rallongé pour intégrer des traitements s'effectuant dans un lessiveur (Figures 7, 8, 9) alors qu'auparavant ils étaient réalisés à l'extérieur du lessiveur (12) d'un appareil de traitement en plusieurs étapes séparées. De manière plus spécifique, l'invention concerne le blanchiment effectué à l'intérieur du lessiveur, en utilisant de préférence des réactifs de blanchiment ne contenant pas de chlore.
Patent CA-2098980-A1 (CA)
Title: Method and apparatus for reclaiming foundry sand
Inventor: LASKOVIC JOVO
IPC: B22C5/00
Filed: 1993-06-22
Abstract: ABSTRACT OF THE DISCLOSURE             A method and apparatus for reclaiming foundry sand wherein the speed of the rotor and/or the drum and, thus, the resulting striking, shearing and friction forces are adapted or matched to the changing surface hardness of the quartz grains to be processed during the process duration.  The drum comprises two drum halves separated transversely to the rotational axis, a sand inlet and a suction removal device.
Patent CA-2099152-A1 (CA)
Inventor: CLEMENT JACK M
IPC: F04B39/10
Filed: 1993-06-25
Abstract: A hermetic compressor including a crankcase defining a cylinder. The crankcase has an annular recess formed in the discharge end thereof which defines a shoulder.  A cylinder head is disposed over the annular recess.  A discharge valve assembly is disposed in the annular recess and includes a valve plate disposed in the annular recess immediately adjacent the shoulder.  A valve plate wave ring is disposed at the outlet side of the valve plate and biases the valve plate against the shoulder.  A valve leaf disposed radially inward of the first wave ring overlies the discharge ports in the valve plate and has an outlet side facing the cylinder head.  A valve leaf wave ring is disposed radially inward of the valve plate wave ring at the outlet side of the valve leaf and biases the valve leaf against the valve plate.
Patent CA-2101170-A1 (CA)
Title: Safety device
Inventor: PERCIVAL GEOFFREY R
IPC: A61H33/00
Filed: 1992-01-22
Abstract: A pump circuit employs a safety device (11) to shut down power to a pump (12) in the advent of adverse pressure conditions existing in the pump circuit. The pump circuit includes a pump inlet conduit (13) communicating with an inlet (14) of the pump (12), an outlet conduit (13) communicating with an outlet (16) of the pump (12), a pump inlet pressure sensing line (17) and a pump outlet pressure sensing line (18). The sensing lines (17, 18) are coupled to a power shut down control unit (19) which is connected in series with the power supply to the pump (12) through power lines (20 and 21). As long as the pressure upstream or downstream of the pump (12) remains normal, power to the pump (12) will be maintained by the control unit (19). Should the pressure sensed vary beyond predetermined limits, then power to the pump (12) would be shut down by the control unit (19).
Patent CA-2102520-A1 (CA)
Title: Polymeric wall or floor coverings manufacturing process and products thereof
Inventor: BASTIN PIERRE
IPC: E04F15/12
Filed: 1992-05-06
Abstract: A method for producing polymer-based floor or wall coverings, wherein polymers modified by high-polarity comonomer groups are mixed with mineral fillers, and sheets, strips or tiles are produced according to conventional methods for PVC in order to produce abrasion-resistant materials which are particularly suitable for producing floor or wall coverings. Abrasion-resistant products obtained using this method are also described.
Patent CA-2111805-A1 (CA)
Inventor: DOAK GERALD F
IPC: B42F13/00
Filed: 1994-05-27
Abstract: In an article for carrying loose papers, it is known to have covers which accomodate the binding of loose papers, commonly referred to as a binder.  In this invention, the sides of the binder are extended in width to accomodate the positioning of one handle hole on each extended cover which handle holes fit together when the covers are closed.   The extensions and the handle holes allow for better control, easier portability and ability to carry other items while transporting the binder from place to place.
Patent CA-2112196-A1 (CA)
Title: Cephalosporin salts and process for the preparation thereof
Inventor: DUERCKHEIMER WALTER
IPC: C07D501/36
Filed: 1993-12-22
Abstract: Abstract of the disclosure Cephalosporin  salts  and process  for  the  preparation thereof The  invention relates to cephalosporin  salts  of  the formula (I) [cephalosporin]m.theta. x[BxH+]?n            (I) wherein  the  salt-forming  anion  is  an  antibiotically active cephalosporin with one group (m = 1) capable of anion formation ox else a plurality of groups of this type (m = 2 or 3), and the base, which can be present as the pure (+)- or (-)-enantiomer or in the racemic form, is of the formula (B)   (A) where R1   is straight-chain  or  branched  alkyl  having 1-8 carbon atoms,  which is unsubstituted or substituted by hydroxyl,  phenyl or by phenyl substituted by alkoxy or  halogen,  preferably  a methyl,  ethyl, propyl, butyl or benzyl group, R2, R3, R4 and R5 can be identical or different and are hydrogen or straight-chain or branched alkyl having 1-4 carbon atoms, with preferably R2 being propyl, R3 and R4 being methyl and R5 being hydrogen, and m and n are, depending on the number of the salt-forming groups in the cephalosporin moiety, a number from 1 to 3 in the case of m, preferably 1 and 2, and in the case of n    0, 1 to 3, preferably 0, 1 to 2.            The cephalosporin salts according to the invention have good antibacterial activity and can therefore be used as medicaments.
Patent CA-2112952-A1 (CA)
Title: Methods, apparatus and perfusion-solutions for preservation of explanted organs
Inventor: GRUENERT ADOLF
IPC: C09K23/14
Filed: 1994-01-06
Abstract: The invention relates to the preservation of organs removed for transplant, particularly the human liver removed for transplant, and especially methods, apparatus and perfusion solutions for preserving these organs, the perfusion solutions containing an aqueous fatty emulsion and, as an oxygen source, a perfluorocarbon emulsion.
Patent CA-2114604-A1 (CA)
Title: Optical signal transmission network
Inventor: SHIPLEY SIMON P
IPC: H04B10/071
Filed: 1994-01-31
Abstract: ABSTRACT OPTICAL SIGNAL TRANSMISSION NETWORK   An optical signal transmission network comprises a main optical fibre having a plurality of branch circuits, with each final branch circuit of a chain of branches ending in a terminal unit, and the network being associated with OTDR equipment connected so as to transmit an output signal through the main fibre and the branch circuits, wherein each said final branch circuit incorporates a filter which is capable of reflecting back towards the OTDR equipment at least one wavelength in the OTDR band, but not traffic wavelengths.
Patent CA-2115291-A1 (CA)
Title: Mdr1 retroviral plasmid
Inventor: KANE SUSAN E
IPC: C12N15/867
Filed: 1994-02-09
Abstract: ABSTRACT     Existing plasmids, such as pHaMDR/A (available from NIH) are large and cumbersome.  The size may limit the known utility of MDR1 as an effective selectable marker in gene transfer experiments.  The invention provides novel plasmids including heterologous promoters and cDNA sequences positioned between the retroviral LTRs.
Patent CA-2115575-A1 (CA)
Title: Transporting goods
Inventor: LAM DAVID C S
IPC: B65D88/52
Filed: 1992-08-12
Abstract: A platform (2, 100) for transporting goods is dimensioned to fit inside a shipping container, has rollers (12, 20) by which it may be moved in and out of the container and has columns (8, 102) in the corners which is one condition are upright and goods are present on the platform and in a second condition are horizontal so that one platform may be stacked upon another.
Patent CA-2116244-A1 (CA)
Title: Medical light treatment apparatus
Inventor: DI BIAGGIO ROBERTO E
IPC: H01S5/068
Filed: 1992-08-24
Abstract: A medical light treatment apparatus (MLTA - 10, 100, 200, 300) for use in the medical treatment of biological structures by application of light energy - particularly laser light energy. The MLTA  (10, 100, 200, 300) monitors the light reflected back from the biological structure and boosts the light energy output by the laser (12) to couple a desired amount of light energy into the biological structure to effect a known medical treatment. The MLTA  (10, 100, 200, 300) has a self-calibrating monitor to monitor the operational characteristics of the laser (12) and adjusts the driving characteristics of the laser (12) to ensure that the laser (12) operates at a substantially constant wavelength. In such manner the MLTA (10, 100, 200, 300) has very accurate control over the laser (12) and can thus serve as a laboratory grade instrument for use in analysing the further medical effects of the laser (12).
Patent CA-2116279-A1 (CA)
Title: Telephonic support receptacle and method therefor
Inventor: KURGAN JEFFERY F
IPC: H04M1/11
Filed: 1994-02-23
Abstract: TELEPHONIC SUPPORT RECEPTACLE                 And Method Therefor Abstract of the Disclosure A telephonic support receptacle (106) for releasably affixing a potion of a telephonic handset thereto. Latch members (160,178) forming portions of the support receptacle latchingly engage with latching surfaces formed upon the telephonic handset. Cantilevers (124,130) are formed along opposing side surfaces of the support receptacle (106). Application of actuation forces upon either cantilever (124,130) causes movement of the latch members (160, 178) out of the latching positions thereby to release the telephonic handset from latching engagement with the support receptacle (106).
Patent CA-2116499-A1 (CA)
Title: Method for the production of frozen bread dough
Inventor: HAEGENS NOEL
IPC: A21D8/04
Filed: 1994-02-25
Abstract: ABSTRACT    A METHOD FOR THE PRODUCTION OF FROZEN BREAD DOUGH            A flour and water dough including a dough-improving agent is cut into pieces and left to rise for at least 90 minutes.            Subsequently the  individual pieces  are  frozen  in an environment at -40°C and then preserved at -20°C.
Patent CA-2116693-A1 (CA)
Title: Active matrix liquid crystal display device
Inventor: DEFFONTAINES CHRISTOPHE
IPC: G02F1/1368
Filed: 1993-07-01
Abstract: A device comprising a thin liquid crystal layer (10) between a planar counterelectrode and control electrodes each defining a capacitor and a picture element with the counterelectrode, and being arranged such that each picture element corresponds to a row and a column. Each control electrode is connected to a control element such as a thin-film transistor which sets it at the potential of a conductor common to all the elements in the column to which it belongs, or isolates it and allows its potential to float. The counterelectrode consists of two fractions (201, 202) provided with devices for setting them at different potentials, and reversed at each frame or multiple of the frame frequency. Two adjacent columns (or two groups of a number of columns) of control electrodes interact with different fractions.
Patent CA-2116892-A1 (CA)
Title: Broyeur a piste annulaire et rouleau et plaques d'usure
Inventor: LAGACHE PHILIPPE
IPC: B02C4/12
Filed: 1994-03-03
Abstract: L'invention concerne les broyeurs comprenant une piste annulaire (12) revêtue de plaques d'usure (14) et sur la surface intérieure de laquelle roulent un ou plusieurs rouleaux (16) qui sont pressés sur la piste par leur poids ou la force centrifuge ou par des moyens externes tels que vérins ou ressorts. Pour diminuer les risques de rupture des plaques d'usure sous l'action des rouleaux, qui exercent une pression élevée, les plaques d'usure (14) comportent une face intérieure ou face de travail dont la forme correspond à celle de la surface de roulement de la piste et une face extérieure ou face d'appui plane, et la partie du corps du broyeur (10) supportant la piste (12) a une surface intérieure prismatique (30) sur laquelle reposent les pièces d'usure.
Patent CA-2118621-A1 (CA)
Title: Closed-loop variable rate applicator
Inventor: MONSON ROBERT J
IPC: G01N33/24
Filed: 1994-03-09
Abstract: CLOSED-LOOP VARIABLE RATE APPLICATOR               ABSTRACT OF THE DISCLOSURE    A closed-loop fertilizer application system capable of determining a soil prescription in neat real-time, and dispensing fertilizer to the soil scene as a function of the soil prescription,  The closed loop application system does not require the use of maps or navigation systems, but rather, ascertains a soil type and chemical composition on the go.  In the preferred embodiment, the application system implements a spectrograph implementing the technology of spectroradiometry to determine soil type and present fertilizer composition in near real-time.  An expert system determines the soil prescription based on the soil type and current fertilizer  levels, and controls the dispensing rate of the fertilizer as a function of the vehicle speed.  The soil analyzer is disposed a pre-determined distance forward of the vehicle such that there is adequate time to perform soil analysis, determine a soil prescription, and then dispense the fertilizer at the rear portion of the vehicle.  The soil analyzer generates a soil signature in near real time, which signature is compared to a pre-determined reference soil signature stored in memory.  The spectrograph radiates the soil at various pre-determined fixed frequencies which cause the various elements in the soil to fluoresce.  Each fertilizer in the soil will fluoresce at one or more know frequencies, the amplitude of which is indicative of the percentage of the fertilizer present at the soil scene.
Patent CA-2119114-A1 (CA)
Inventor: FICKEN LEONARD A
IPC: A47J31/60
Filed: 1994-03-15
Abstract: A moisture reduction system for an automatic vending machine of the hot beverage type which utilizes a movable brewing chamber that opens for  the addition of product, such as coffee.   The system has a suction tube disposed adjacent the product supply tube and brewing chamber in its product fill position, which draws off moisture from the open chamber so that it does not accumulate on the product supply tube.  A filter is disposed at the end of the suction tube to prevent product dust, such as coffee grounds, from being sucked into the tube.
Patent CA-2122174-A1 (CA)
Inventor: BIELFELDT FRIEDRICH B
IPC: B27D3/04
Filed: 1994-04-26
Abstract: ABSTRACT     The invention relates to a process to convert a chipboard, fibreboard and plywood production plant from a discontinuous to a continuous mode of operation, in which the existing single or multiple-stage press is replaced by a continuously-operating press. The process involves: (I)  during the operation of the existing press equipment:-A)   setting up, as close as possible to the existing press, a preassembly site with a roof (tent or shed) and a press foundation which has the capacity to support a continuously-operating press which will be assembled; B)   completely assembling the continuously-operating press with several predetermined individual modules Cn on transportable assembly and transport bridges; C)   conducting a trial operation of the continuously-operating press under load but without heating, including all control functions; and (II) after the existing press has been shut down:-D)   dismantling the discontinuously-operating press and removing it from the production shed; E)  constructing the foundation in the production shed to accept the continuously-operating press, at the same time, splitting up the continuously-operating press at the interfaces, removing the steel belts and secure the loose rotating production elements of the continuously-operating press (1), F)   conveying the individual modules Cn of the continuously-operating press one after another in the prescribed sequence by means of heavy-duty transport lifting jacks or on rails to the press site, G)   reassembling the individual modules Cn into a continuously-operating press, and H)   starting up the new continuously-operating press. The invention makes it possible to reduce the down-time requried for conversion of the plant.
Patent CA-2122706-A1 (CA)
Title: System for facilitating and oil change and/or an oil filter change in internal combustion engines
Inventor: MARTINEZ VELAZQUEZ MANUEL JESU
IPC: F01M11/04
Filed: 1993-09-22
Abstract: ABSTRACT OF THE DISCLOSURE      System for facilitating the changing of the oil and the oil filter in internal combustion engines, the system being comprised of an external unit for extracting the spent oil and filling in the new oil, and oil filter support which provide for its operation at a remote position from the engine unit while facilitating the changing thereof and a system of hydraulic conduits for connecting the filter support to the engine unit and crankcase to the external auxiliary unit.
Patent CA-2123969-A1 (CA)
Title: Drill bits
Inventor: CLARK IAN E
IPC: E21B10/48
Filed: 1994-05-19
Abstract: ABSTRACT   A novel form of drill bit is disclosed.  The bit (30) comprises a bit body having a leading face (32) and gauge surface (44, 46).  Cutting inserts (32, 34, 36) are set into the bit body, each cutting insert being in the form of a segment of a composite PCD (polycrystalline diamond) or PCBN (polycrystalline cubic boron nitride) composite.  Thus each insert has a PCD or PCBN compact (40) carried by a carbide backing (42). The PCD or PCBN compact of each insert is exposed at the leading face or at the gauge surface to perform an axial cutting or gauge maintenance function during drilling.
Patent CA-2124031-A1 (CA)
Inventor: AMINI NADER
IPC: G06F13/40
Filed: 1994-05-20
Abstract: A direct memory access (DMA) support mechanism is provided for use in a computer system which comprises (i) a central processing unit (CPU) connected to system memory by a first system bus, and a second system bus connected to the CPU; (ii) a host bridge connecting the second system bus to a peripheral bus; (iii) an input/output (I/O) bridge connecting the peripheral bus to a standard I/O bus, the standard I/O bus having a plurality of standard I/O devices attached thereto; and (v) arbitration logic which functions in an arbitration mode for arbitrating between the plurality of standard I/O devices competing for access to the standard I/O bus, and in a grant mode wherein a selected standard I/O device is granted access to the standard I/O bus. The DMA support mechanism comprises a direct memory access (DMA) controller for performing DMA cycles on behalf of the selected standard I/O device, and direct memory access (DMA) support logic for enabling the DMA cycles to be performed over the peripheral bus. The DMA support logic includes sideband signals directly connecting the DMA controller with the I/0 bridge, the sideband signals including information identifying the bus size of the selected I/O device for which the DMA controller is performing the DMA cycles.
Patent CA-2124351-A1 (CA)
Title: Vinyl chloride and heterocyclic thione functional polyurethane polymer blends and their use in magnetic recording media
Inventor: CARLSON JAMES G
IPC: C08G18/38
Filed: 1992-10-29
Abstract: The invention relates to a composition comprising: (a) about 5 to 95 weight percent of a vinyl chloride copolymer; and (b) about 5 to about 95 weight percent of a polymer selected from the group consisting of polyurethane and polyurethane urea, said polymer having at least one pendant heterocyclic group, wherein said polymer has a heterocyclic group equivalent weight of from about 500 to about 100,000, and wherein said heterocyclic group is derived from a compound selected from the group (I) consisting of tautomers thereof, and mixtures thereof, wherein said heterocyclic group is formed by reacting said heterocyclic compound into said polymer; wherein said weight percentages are based upon the total weight of said composition.
Patent CA-2125633-A1 (CA)
Title: Tubular above ground gas storage vessel
Inventor: HALE GEORGE C
IPC: F17C1/00
Filed: 1994-06-10
Abstract: This invention includes an above ground gas storage vessel of tubular or cylindrical configuration.  A head or cap with threads mating the threads of the tube is screwed on each end of the tube to form a pressure vessel.  Each cap contains a passage therein threaded to mate a reducing bushing.  The reducing bushing likewise contains a passage which is at least partially threaded.   This passage may be capped to prevent gas flow or valve to allow the flow of gas as required.   In an alternative embodiment, the cap assembly is inserted into the tube and retained therein.  A packing assembly would be used to seal the tube to prevent the escape of gas.  A plurality of vessels are secured in a vertical-parallel arrangement using a support structure to increase gas storage capacity while taking up a minimal amount of ground space.
Patent CA-2127033-A1 (CA)
Title: Production and use of improved composite fluid separation membranes
Inventor: BIKSON BENJAMIN
IPC: B01D53/22
Filed: 1994-06-29
Abstract: THE PRODUCTION AND USE OF IMPROVED COMPOSITE FLUID SEPARATION MEMBRANES                   Abstract of the Disclosure Multilayer composite membranes are produced in a one-step coating process that provides an interior gas separation layer and an external defect sealing layer.