baber/WOPTO huggingface dataset:
Patent NO-155995-C (NO)
Inventor: ROBERTS ROBERT LLOYD
IPC: B01D39/20
Filed: 1982-08-26
Abstract: A rigid sludge-dewatering filter plate (1) comprising at least a first layer (2) and a second layer (3), the first layer (2) constituting a flat filtering element consisting essentially of jagged irregular particles (4) and the second layer (3) constituting a particulate support for the first layer (2), characterised in that the particles (4) of the first layer are of a material or materials whose hardness on the Moh scale is at least 7 and which are bonded together with an adhesive bonding agent (18), at least the majority of the particles (4) being of at least two sizes whose average diameter is substantially within the range 0.01 cms to 0.25 cms and being arranged with the average particle size of the particles (4) increasing from an exposed dense upper surface (15) of the first layer (2) to a lower surface (19) thereof, the second layer (3) having particles (5) which are larger than the largest particles in the first layer (2) and the particles (5) of the second layer (3) being bonded together and to the lower surface (19) of the first layer (2) by an adhesive bonding agent (18).
Patent NO-163975-C (NO)
Inventor: JUST FRIEDRICH ERNST
IPC: E21B33/06
Filed: 1983-11-11
Abstract: An improved annular blowout preventer having a body with a central bore, an annular packer chamber facing the bore, an improved annular packer in said chamber and means for axially loading said annular packer to actuate it to closed position, said improved annular packer including a resilient annulus including an upper set of insert plates embedded in said annulus, a reaction ring embedded in the outer periphery of said annulus and means for moving said reaction ring toward said upper set of insert plates responsive to actuation of said packer loading means to ensure inward movement of said insert plates to their desired supporting position for said annulus when closed. The improved packer may have both upper and lower insert plates and upper and lower rings and a sleeve within the rings to ensure proper movement of both sets of insert plates.
Patent NO-163240-C (NO)
Inventor: WIKDAHL NILS ANDERS LENNART
IPC: B04C5/28
Filed: 1985-04-25
Abstract: The invention relates to a method of controlling an apex flow in a hydrocyclone unit (9), and a control system for carrying out the method. The hydrocyclone unit (9) comprises a plurality of hydrocyclone separators (10) in parallel, and further comprises an inject chamber (21, 22, 23), base chamber and apex-fraction chamber common to all separators, an inlet (1) to the inject chamber (21) and an outlet (2, 3) for the base chamber (22) and apex chamber (23) respectively. The apex flow is controlled by automatically and substantially continuously detecting at a location in or adjacent the apex outlet (1) a flow parameter of the apex fraction, and comparing this sensed flow parameter value with a set-point value, and changing the setting of a valve (15) incorporated in a conduit (14) connected to the apex outlet (2) when the sensed value deviates from the set-point value, so that the flow parameter value of the apex fraction moves towards the set-point value.
Patent NO-175585-C (NO)
Inventor: ROUSSEAU GERARD
IPC: C04B35/52
Filed: 1988-02-24
Abstract: Composite material with matrix and reinforcing fibres of carbon and its production process. The composite material according to the invention comprises a substrate (2) of carbon fibres covered with a fine silicon carbide coating (6) and embedded in a carbon matrix (4) containing 2 to 10% by weight silicon carbide, an outer silicon carbide covering (10), followed by a first filling of the cracks with silica (14) and a second filling with borosilicate glass (16) (SiO2-B2O3). This unoxidizable material can in particular be used as a heat shield for a spacecraft.
Patent NO-174823-C (NO)
IPC: G01M3/32
Filed: 1988-03-29
Abstract: In a method of testing the gas-tightness of walls defining a closed chamber a hollow member of resiliently flexible material is inserted into the chamber. A liquid is introduced into the hollow member until the hollow member substantially fills the chamber. A test gas is then introduced into the space defined between the hollow member and the chamber walls. Escape of any test gas from the chamber is then sensed by loss of gas pressure in the chamber or the presence of test gas outside the chamber. The presence of the liquid-filled hollow member reduces the amount of test gas needed and the associated risks and cost. The chamber may be defined between segments of oil well pipe casing connected by threaded sockets or it may be the space within a tank.
Patent NO-175939-C (NO)
Inventor: HAYAKAWA ISAO
IPC: A61K31/44
Filed: 1989-04-25
Abstract: N1-(1,2-cis-2-halogenocydopropyl)-substituted pyridonecarboxylic acid derivatives represented by formula (I) and the salts thereof are disclosed. These compounds have patent antibacterial activities against a wide variety of infectious bacteria, and are useful as antibacterial agents by oral or parenteral administration. <CHEM>
Patent CA-2001604-C (CA)
Inventor: MARTIN ADOLF H
IPC: H01H23/04
Filed: 1989-10-26
Granted: 2000-12-12
Abstract: An electric switch which translates a pivotable toggle motion to a rectilinear contact engaging and breaking movement, including an actuator assembly and a contact assembly which are clamped together during assembly with a face plate. The actuator assembly facilitates assembly by capturing a pivotable operating lever between a halo which adapts the actuator assembly to a face plate, and a halo adapter which adapts the actuator assembly to the contact assembly. The contact assembly includes a movable contact carrier to which a cam is fixed. The cam includes a recess which defines spaced lateral stops, and a cam surface which slopes axially inward between the spaced lateral stops, with the operating lever having a cam actuator end which enters the recess and rides on the cam surface.
Patent CA-2006628-C (CA)
Title: High impact resistant carbide tip for a circular saw
Inventor: COLLETT KENNETH L
IPC: B27B33/08
Filed: 1989-12-22
Granted: 1999-02-23
Abstract: An improved cutting tooth for a circular saw of the type commonly used to cut the bark off raw logs comprising a crescent shaped steel bit and a wedge shaped cutting tip affixed to an upper portio of the bit wherein the cutting tip is composed of a high impact resistant carbide alloy consisting essentially of a blend of 83.5% tungsten carbide, 16% cobalt and 0.5% tantalum carbide.
Patent CA-2006732-C (CA)
Title: Control system for fetching an instruction
Inventor: MORI TSUYOSHI
IPC: G06F9/00
Filed: 1989-12-27
Granted: 1994-05-03
Abstract: Abstract for the Disclosure An instruction fetch control system prefetches a branch instruction in a pipeline system and fetches a branch target instruction of the  branch instruction. The control system comprises a first branch judgement circuit for conducting a branch condition judgement in a stage prior to the branch judgement stage in which a second and original branch judgement of the branch instruction is conducted, and a circuit for starting a prefetch of instructions following said branch target instruction without waiting for the branch judgement stage where the first branch judgement circuit judges that the branch is successful.
Patent CA-2011248-C (CA)
Title: Light transmitting yttria sintered body and its preparation
Inventor: SHIBATA KENICHIRO
IPC: C04B35/645
Filed: 1990-03-01
Granted: 1999-09-28
Abstract: The present invention is directed to a light transmitting yttria sintered body having good light transmission, which can be prepared by a method comprising the steps of densifying yttria powder having a purity of not lower than 99.9 % and a BET specific surface area of not smaller than 10 m2/g by a hot press at a temperature of 1300 to 1700°C under a pressure of 100 to 500 kg/cm2 under vacuum conditions so as to achieve the theoretical density ratio of not lower than 95 % and then hot isotropically pressing densified yttria at a temperature of 1400 to 1900°C under a pressure of not lower than 500 kg/cm2. The light transmitting yttria sintered body of the present invention is suitable for use as an infrared transmitting window.
Patent CA-2017095-C (CA)
Title: Boiler tube cutting apparatus
Inventor: HILLESTAD TOLLIEF O
IPC: F22B37/00
Filed: 1990-05-18
Granted: 1994-09-13
Abstract: An apparatus for cutting boiler tubes compris-ing a movable carriage having a cutting means where the carriage and cutting means are supported on a lateral supporting beam  secured adjacently to a bank of boiler tubes.  The movable carriage means is stabilized with a plurality of bearings means for engaging the lateral beam and preventing strain and vibrations during the cutting process.   The cutting means is preferably powered by a pneumatic motor.
Patent CA-2020223-C (CA)
Title: Aerosol container cap
Inventor: KOBAYASHI SHINYA
IPC: B65D47/26
Filed: 1990-06-29
Granted: 1996-02-27
Abstract: A cap comprising a cover (2) and a tubular body (1) for use on an aerosol can (5).  The tubular body (1), fitted onto the aerosol can (5), contains a perpendicular bar (10), horizontal bar (6), and ducts (30) to release the contents from the can.  To activate the ejection valve stem (14), a lever mechanism is incorporated in the cover which can be disposed in an open and closed position.  In the open position, the upper portion of the cover (26) is depressed, activating the ejection valve stem (14) and releasing the contents.  When the upper portion of the cover is moved to a closed position, it is not possible to accidentally activate the ejection valve stem.  An audible sound is created when the cover reaches the open and closed position.
Patent CA-2023012-C (CA)
Title: 4-substituted 17.beta.-(cyclopropylamino)androst-5-en-3.beta.-ol and related compounds useful as c17-20 lyase inhibitors
Inventor: ANGELASTRO MICHAEL R
IPC: C07J41/00
Filed: 1990-08-09
Granted: 2001-07-03
Abstract: This invention is directed to 4-substituted 17.beta.-(cyclopropylamino)androst-5-en-3.beta.-ol and related compounds and also to a method for using such compounds in the treatment of androgen-dependent disorders. The compounds are prepared by the hydride reduction of an appropriate steroidal imine or enamine.
Patent CA-2026520-C (CA)
Title: Acrylic block copolymers with crosslinkable silicon substituent
Inventor: SPINELLI HARRY J
IPC: C08F297/00
Filed: 1990-09-28
Granted: 2001-08-21
Abstract: Hybrid star polymers with acrylic arms and crosslinked polysiloxane cores can be made by a polycondensation of substituent alkoxysilyl groups contained in acrylic ester groups of acrylic block copolymers to form the cores.
Patent CA-2029050-C (CA)
Title: Sustained release compositions for treating periodontal disease
Inventor: DAMANI NALINKANT CHUNILAL
IPC: A61K9/00
Filed: 1990-10-31
Granted: 1997-01-07
Abstract: This  invention  relates  to  compositions  and  methods  for treating diseases of the oral cavity in humans and lower animals using a glycerol monooleate gel for releasing drugs in the oral cavity.
Patent CA-2029099-C (CA)
Title: Method and apparatus for cooling, neutralizing, and removing suspended particulates from the gaseous products of combustion and for improving the efficiency of any furnace to which said apparatus is attached ("the kagi scrubber")
Inventor: KAGI THOMAS SR
IPC: B01D53/75
Filed: 1990-11-01
Granted: 1999-07-13
Abstract: The present invention discloses a method and apparatus for calling and removing the toxic particulates, heavy metals, noxious fumes, and acid from the gaseous products of the combustion of materials high in impurities and/or toxic substances.  Said invention accomplishes the above when dense exhaust and smoke emitted by a furnace are drawn through a series of three treatment chambers by the tremendous vacuum effect of extremely high-velocity vertical water and alkaline solution jets.  The hydraulic pressure of the water and alkaline solution jets, in addition to providing draft, forces impurities in the gaseous waste to hydraulically dilute or dissolve in a turbulent liquid bath below.  The apparatus improves the efficiency of any furnace to which it is attached by channeling exhaust-heated water through an external radiator, thereby supplementing the heat output of the furnace to which the device is attached.
Patent CA-2031935-C (CA)
Title: High-speed synchronous transmission line access terminal
Inventor: CZERWIEC RICHARD M
IPC: H04Q11/04
Filed: 1990-12-11
Granted: 1994-07-19
Abstract: ABSTRACT OF THE DISCLOSURE      A terminal for a telecommunications system provides access to one or two high-speed synchronous transmission lines by both low-speed transmission lines and subscriber lines.  A core module includes interfaces to the high-speed lines, a time slot interchanger, an interface to the low-speed transmission lines, processors and overhead circuitry for supporting the terminal.  An access module includes a plurality of line shelves connected to subscriber lines, each line shelf includes a pair of processors and four time slot assignors.  A multi-link serial bus connects the time slot interchanger to the access module and to the low-speed interface and provides close coupling between the processors in the core module and the line shelves.  The processors cooperate to groom subscriber information from said subscriber lines to and from time slots in said high-speed feeder line and said low-speed transmission line.  Subscriber information may also be groomed between time slots of the high-speed feeder line and the low-speed transmission lines and between time slots within each subscriber line.
Patent CA-2033982-C (CA)
Title: Filter for continuous filtration
Inventor: STRID KENT
IPC: B01D33/21
Filed: 1990-06-13
Granted: 2000-11-28
Abstract: A filter for continuous filtration of a liquid includes conventionally a vessel (1) having a center shaft (2) on which is arranged at least one rotatable filter element defining an inner space for liquid obtained at filtration. Further there is provided a washing device (6) for washing of material deposited on the filter element, a connection between said inner space and outlet means from said vessel and a separator (10) connected to said outlet and adapted for separating filtrate and gas. Means (19, 20) is provided outside said vessel for generating an overpressure in the gas space of the vessel and a lower pressure in the interior of the filter element at least corresponding to the evaporating temperature of the filtrated liquid for evaporation of the liquid in the separator. The separator (10) is provided with a cooling device (26) for cooling of the separated gas and an outlet for condensate obtained at cooling.
Patent CA-2035261-C (CA)
Title: V-belt
Inventor: MISHIMA KYOICHI
IPC: F16G5/06
Filed: 1991-01-30
Granted: 1994-09-27
Abstract: V-BELT                 Abstract of the Disclosure A power transmission belt having a length and a lateral extent.  The belt consists of a tension layer and a compression layer with the compression layer defined at least  partially  by  acrylonitrile-butadiene  copolymer rubber (hydrogenated nitrite rubber), having at least an 80% hydrogen addition rate,  and a plurality of sub-stantially  laterally  oriented  fibers  in the  acrylo-nitrile -butadiene copolymer rubber in the compression layer. The fibers are treated with one of resorcin-for-malin-nitrile rubber latex (RFL) and resorcin-formalin-hydrogenated nitrile rubber latex (RFL) having at least an 80% hydrogen addition rate.
Patent CA-2035772-C (CA)
Title: Mechanical seal
Inventor: MARSI JOSEPH A
IPC: F16J15/38
Filed: 1991-02-06
Granted: 2001-04-17
Abstract: An improved mechanical seal assembly for separating high pressure fluid from lower pressure fluid including a vented Quad-ring in a non-rotatable seal ring for providing lower sliding friction and improved, more consistent pressure deflection of the non-rotating seal face, an improved means for positioning a pressure breakdown means located in the high pressure fluid for controlling the pressure differential between the high pressure fluid and the low pressure fluid by a predetermined amount and means for improving the circulation of clean fluid around the outer periphery of the seal assembly under conditions where the fluid being pumped is contaminated.
Patent CA-2037036-C (CA)
Title: Lock protector
Inventor: TRUDEAU RICHARD
IPC: E05B17/14
Filed: 1991-02-25
Granted: 1999-02-16
Abstract: A lock protector for protecting a lock from precipitation or other foreign matter includes a hollow body defined by a frusto-conical side wall and a circular outer wall contiguous with the side wall.  The free edge of the side wall is affixed to a vehicle door or trunk lid using an annular piece of double-faced adhesive so that the body of the protector covers the lock.  Access to the lock is via a vertical slit in a thin flexible central area of the outer wall.  When a key is inserted through the slit into the lock, the slit opens permitting easy access to the lock.  When the key is removed, the slit closes so that the body again fully protects the lock from the outside.  A ventilation hole aligned with the slit in the bottom of the side wall ventilates the interior of the body to prevent the accumulation of moisture in the lock protector.
Patent CA-2040735-C (CA)
Title: Multi-components measuring and dispensing system
Inventor: DUNNOUS JACK
IPC: G01F11/28
Filed: 1991-04-18
Granted: 1995-03-28
Abstract: Components of a multi-component mixture are individually fed into a measuring container from the bottom through individual precision valves, the component being fluid rises in the container and its level is monitored by ultrasonic means which, in turn, input the measurement to a computer for comparison in memory to determine volume.  When the measured level indicates a desired volume is achieved, the feed valve is closed.  The contents are then drained from the bottom of the measuring container into a mixing container, and the next component measured in the same way until all components have been measured or the components are sequentially fed and measured until all of the components are present in the tube before discharge.  The operation is under computer control which turns on and off the individual precision feed valves and opens a drain valve to drain the contents from the measuring container as well as determining when the proper volume or weight has been achieved.
Patent CA-2042723-C (CA)
Title: Derrick assembly capable of conveying pipe sections between a drill string and a rack for said pipe sections
Inventor: ROWBOTHAM RONALD HOWARD
IPC: E21B15/00
Filed: 1991-05-16
Granted: 2003-11-04
Abstract: A derrick assembly capable of conveying pipe sections between a drill string and a rack for storing the pipe sections. The assembly includes a frame having lateral sidewalls and a base together defining an elongated channel having an open outer side opposite to the base. A rack for housing pipe sections is positioned within the channel adjacent to one lateral sidewall leaving part of the channel clear for manipulating the drill string. The rack is formed by a number of elements extending between the base and the open outer side for housing pipe sections oriented generally longitudinally within the channel. A gantry extends across the open outer side of the channel and is movable longitudinally of the channel. The gantry supports a pipe gripping unit for selectively gripping or releasing pipe sections capable of moving towards or away from the base and laterally between the sidewalls. The pipe gripping unit can thus convey pipe sections between the rack and the clear part of the channel by appropriate movements in the stated directions.
Patent CA-2051304-C (CA)
Inventor: TANIGUCHI TOMOHIKO
IPC: G10L19/12
Filed: 1991-09-13
Granted: 1996-03-05
Abstract: A CELP type speech coding system, which is provided with an arithmetic processing unit which transforms a perceptual weighted input speech signal vector AX to a vector tAAX, a sparse adaptive codebook which stores a plurality of pitch prediction residual vectors P sparsed by a sparse unit, a multiplying unit which multiplies the successively read out vectors P and the output tAAX from the arithmetic processing unit, a filter operation unit which performs a filter operation on the vectors P, and an evaluation unit which finds the optimum vector P based on the output from the filter operation unit, so as to enable reduction of the amount of arithmetic operations.
Patent CA-2054919-C (CA)
Inventor: DONSE LENNART
IPC: E21B17/00
Filed: 1991-11-04
Granted: 2004-04-27
Abstract: Drill string component for top hammer drilling comprising a rod (13) surrounded by a tube packet (4,5). The rod is provided with a thickened section (14) for cooperation with a diameter reduction (15) in the tube packet which at upwards drilling is situated below the section (14). Through this flushing liquid is prevented from flowing out of the drill string when the drill string is extended.
Patent CA-2057464-C (CA)
Title: Terpolymers of ethylene, their preparation and their use as additives for mineral oil distillates
Inventor: REIMANN WERNER
IPC: C10M127/02
Filed: 1991-12-20
Granted: 1997-02-04
Abstract: The invention relates to terpolymers obtained by joint polymerization  of  ethylene,  vinyl  acetate  and vinyl neononanoate or vinyl neodecanoate, a process for their preparation and their use as additives for mineral oil distillates.
Patent CA-2062094-C (CA)
Title: Method of treating mania
Inventor: SNORRASON ERNIR
IPC: A61K31/55
Filed: 1992-02-28
Granted: 1999-11-23
Abstract: Mania is treated by administering, to a patient in need thereof, galanthamine or a salt or derivative thereof or a functional equivalent of galanthamine, the functional equivalent being an acetylcholinesterase inhibitor which is active substantially selectively at nicotinic receptor sites.
Patent CA-2066114-C (CA)
Title: Cartons
Inventor: LEBRAS PHILIPPE
IPC: B65D71/00
Filed: 1992-04-15
Granted: 1996-07-02
Abstract: A carton blank (10) comprises hingably interconnected main panels (12,30,32,34) and a corner gusset structure (50,51) section hingably connected to two adjacent main panels (12,30).  One of the main panels (12) has a fold line (20) which lies substantially parallel to the hinged connection (22) between the adjacent two panels.   The fold line defines two panel portions (12,12a) in the main panel (12) which can be displaced from coplanar alignment with  one  another  about  the  fold  line  (20)  during formation of a carton in order to facilitate formation of said corner gusset structure.
Patent CA-2067133-C (CA)
Title: Liposome microreservoir composition and method
Inventor: MARTIN FRANCIS J
IPC: A61K38/095
Filed: 1990-10-19
Granted: 1998-07-21
Abstract: A liposome composition for extended release of a therapeutic compound into the bloodstream. The liposomes are composed of vesicle-forming lipids and between l-20 mole percent of a vesicle-forming lipid derivatized with hydrophilic polymer, have sizes in a selected size range between 0.1 and 0.4 microns, and contain the therapeutic compound in liposome-entrapped form. The dosage form of the composition contains at least about three times the dose of the compound required for intravenous injection in free form. Also disclosed is a method for extending to at least 24 hours the period in which an intravenously administered therapeutic compound is therapeutically active in the blood-stream, and novel liposomes for practicing the method.