baber/WOPTO huggingface dataset:
Patent CA-2070362-C (CA)
Title: Support tub for a dragline excavating machine
Inventor: KALLENBERGER HARVEY
IPC: E02F9/12
Filed: 1992-06-03
Granted: 1995-10-10
Abstract: A support tub for a dragline excavating machine having an outer peripheral wall and top and bottom walls respectively affixed to an upper edge and a lower edge of the outer wall.  The bottom wall rests on the ground during excavating operation of the machine and a circular ring support on which a circular rail is mounted is positioned above the top wall.  The machine is rotatably movable on the rail and is thereby supported through the ring support by the tub. The tub includes an inner ring wall concentric with the track circular ring support, a plurality of vertically disposed radial plates each extending radially outward from the inner ring wall to the outer peripheral wall, and a plurality of vertically disposed chordal plates each extending in the direction of a chord of the outer peripheral wall.  A plurality of triangular compartments are each formed by the intersection of two of the chordal plates and a radial plate or by the intersection of three chordal plates.  A plurality of intersections are formed by the intersecting of different groups of three of the plurality of chordal plates and a plurality of intersections are formed by the intersecting of different groups of two of the plurality of chordal plates and one of the plurality of radial plates.  Pairs of radial plates are aligned and, together with the ring wall, form a continuous diameter member across the peripheral outer wall.  All of the triangular compartments are equilateral sided and are of the same size.
Patent CA-2070819-C (CA)
Inventor: ERVAY EARL D
IPC: B23F19/10
Filed: 1990-12-03
Granted: 1996-06-11
Abstract: A method of forming a relief at the toe end of the teeth on a bevel gear is disclosed.  The width of the blades that cut the longitudinally extending convex or concave profiles of the flanks of the teeth is increased to a dimension greater than the width of the tooth slot at the toe end whereby additional stock is removed from the toe end of the flank opposite the flank being cut by the blades.          The relief is formed at the toe end of each tooth with the relief being on the same flank profile for all teeth.          Lapping interference is eliminated.  A separate chamfering operation is not required.
Patent CA-2073550-C (CA)
Title: Low mass piston system for necked-in aerosol cans
Inventor: SPORRI ANTHONY J
IPC: B65D83/14
Filed: 1992-07-09
Granted: 1997-09-16
Abstract: An aerosol can piston and system, employing an aerosol can with a sidewall which is necked in at the bottom and a low mass piston with recessed, depending legs.  The piston has a lower skirt portion, the outermost diameter of which is slightly smaller than the diameter of the inner wall of the can above the necked-in portion.  The legs depending from the piston have an effective outer diameter somewhat less than the inside diameter of the lower necked-in portion of the can sidewall and depend sufficiently downward to sit on the can bottom countersink while maintaining the skirt of the piston at a level just above the level at which the can sidewall necks inwardly.  The legs thus stabilize the piston and prevent tipping and canting.  In an alternative embodiment the piston also includes a plurality of vertical columns protruding from its sidewall to further stabilize the piston.
Patent CA-2075642-C (CA)
Title: Foaming system for closed-cell rigid polyurethane foam
Inventor: SMITS GUIDO F
IPC: C08L75/04
Filed: 1991-01-17
Granted: 2002-06-11
Abstract: This invention relates to the use of a C2-6 polyfluorocarbon compound containing non chlorine or bromine atoms as physical blowing agent in the preparation of rigid, closed-cell, polymer foams. Use of such blowing agents in the prepara-tion of polyurethane foam provides for a product in which the loss in thermal insulationperformance with time compared to products prepared in absence of such blowing agent is reduced.
Patent CA-2076506-C (CA)
Title: Apparatus and method for reducing system overhead while inking strokes in a finger or stylus-based input device of a data processing system
Inventor: ZETTS JOHN M
IPC: G06F3/033
Filed: 1992-08-20
Granted: 1997-04-08
Abstract: The present invention reduces overhead processing of a data processing system by storing a predetermined number of points corresponding to the position of a pointing device as it moves on  a  workpad  or  other  touch  sensitive  input  device.   A predetermined number of points are stored in a buffer, wherein the predetermined number is dependent upon the type of pointing device (e.g., finger, stylus, etc.) used with the workpad.  The stored points are periodically displayed or inked on a visual display at a rate of at  least 20 times per  second.   As  a result,  the  user  moving  the  pointing  device  receives  both tactile  and  visual  feedback  information  similar  to  that provided by, a pencil used to make markings on a piece of paper. An  alternative  embodiment  provides  a  similar  reduction  of overhead   associated   with   erasing   graphical   information displayed on the visual display.
Patent CA-2080328-C (CA)
Title: Pneumatic tire
Inventor: OCHIAI KIYOSHI
IPC: B60C/
Filed: 1992-10-09
Granted: 2003-07-15
Abstract: A pneumatic tire is provided herein comprising a tread portion having a pair of tread edges. The tread portion is provided with at least two main circumferential grooves and with axial grooves to define tread blocks which are arranged in two or more circumferential rows. The tread blocks comprise shoulder blocks which are between each axially-outermost main circumferential groove and each tread edge. Each of the shoulder blocks is provided with a narrow circumferential shoulder groove so as to subdivide the block axially into an axially-outer shoulder block part and an axially-inner shoulder block part. The axial width of the axially-outer shoulder block part, measured from the tread edge to the narrow circumferential shoulder groove is 0.06 to 0.25 times the tread half-width between one tread edge to a tire equator.      The mean groove depth of the narrow circumferential shoulder groove is 0.3 to 1.10 times the groove depth of the main circumferential grooves. Each of the tread blocks in the two or more circumferential rows is provided with one or more sipes extending circumferentially of the tire to divide the tread block into two or more axial parts. The sipe or sipes have a width of 0.2 to 1.5 mm. The sipe or sipes are disposed in the axially-outer shoulder block part. The mean depth of each of the sipe or spies is 0.25 to 1.25 times the mean groove depth of the narrow circumferential shoulder groove.
Patent CA-2080645-C (CA)
Title: Method for stabilizing titania supported cobalt catalyst
Inventor: SOLED STUART LEON
IPC: B01J37/03
Filed: 1992-10-15
Granted: 2001-01-16
Abstract: A method of preparing catalyst compositions of cobalt composited with ternary metal oxide supports of substituted titanic having the general formula C~/Ti1-x M xO2 where x ranges from .01 to .14 and M is selected from the group consisting of silicon, zirconium, and tantalum and wherein the titanic is an anatase polymorph stable under oxidative regeneration temperatures from about 400 to about 750°C.
Patent CA-2082689-C (CA)
Title: Zinc oxide crystal and method of producing same
Inventor: KITANO MOTOI
IPC: C30B29/66
Filed: 1992-11-12
Granted: 1998-06-09
Abstract: A novel zinc oxide crystal has an octahedral nucleus whose faces are alternately zinc faces and oxide faces, and this crystal has such a geometric shape that a needle is grown on each of the faces.  The needle grown on the oxide face is branched into three sections which are disposed in parallel relation, and the needle on the oxide face is shorter than the needle on the zinc face.  This novel crystal having oxide films can be produced in a homogeneous manner by  mixing zinc-tin alloy powder or tin powder with zinc powder, having an oxide film formed on each particle thereof, to form a powder mixture and then by heating the powder mixture at 820°C to 1100°C in an oxidizing atmosphere to oxide the same.  The tin concentration in the power mixture is less than 40 wt.%.
Patent CA-2086662-C (CA)
Inventor: BRAUN EUGENE RALPH
IPC: F16D48/06
Filed: 1993-01-04
Granted: 2000-07-18
Abstract: An automatic clutch control system (200) is provided featuring programs for establishing optimum clutch engagement starting position (CPO) under varying operating conditions. The programs include the steps of both slow and rapid clutch engagement and preferably the storage of the (CPO) determined as a fault signal whenever its fractional relationship to the previously stored optimum clutch engagement starting position (CPN) exceeds a predetermined fraction (C6) that is less than one.
Patent CA-2091181-C (CA)
Title: Cloning of chicken anaemia dna
Inventor: NOTEBORN MATHIEU HUBERTUS MARIA
IPC: C12N15/11
Filed: 1991-09-11
Granted: 2006-02-21
Abstract: Recombinant genetic information (DNA or RNA), comprising a Chicken Anaemia Virus (CAV)-specific nucleotide sequence and the use thereof for diagnostics, vaccination or protein production.  Recombinant CAV protein and the use thereof for diagnostics, vaccination or production of CAV-specific antibodies. The use of CAV-specific antibodies thus obtained.
Patent CA-2099172-C (CA)
Title: Data pipeline system and data encoding method
Inventor: WISE ADRIAN PHILIP
IPC: G06F15/00
Filed: 1993-06-25
Granted: 2001-08-14
Abstract: A pipeline structure processes data in a series of stages, each of which has a data input latch (LDIN) and passes it on to the next stage in the pipeline via a data output latch (LDOUT). The stages are preferably connected to two non-overlapping clock phases (PHO, PH1). Adjacent stages are also connected via a validation line (IN_VALID, OUT_VALID) and an acceptance line (IN_ACCEPT, OUT_ACCEPT), and in some embodiments also via an extension bit line (IN_EXTN, OUT_EXTN).      Input data is transferred from any stage to the following device on every complete period of both clock signals only if both the validation and acceptance signals in the respective latch are in an affirmative state, whereby data is transferred between stages regardless of the state of the validation and acceptance signals in other stages. A two-wire interface is thus formed between the stages. Address decoding circuitry may also be included in any of the stages so that a stage manipulates the input data stream only when one or more current data words have a predetermined bit pattern. The extension bit line conveys an extension bit that separates fields of different data blocks in the data stream. The invention also includes a method for uniquely encoding data blocks so that only intended pipeline.stages are activated, with others simply passing input data through.
Patent CA-2105039-C (CA)
Inventor: BUTI TAQI NASSER
IPC: H01L21/768
Filed: 1993-08-27
Granted: 1996-10-29
Abstract: A wafer  structure  suitable  for  the  formation of semiconductor  devices  thereon  and  having  a buried interconnect  structure  for  interconnection of  desired ones  of  the  semiconductor  devices  according  to  a predetermined  interconnection pattern and a method of making  the  same  is  disclosed.   The  wafer  structure comprises a primary substrate having a first thickness appropriate   for   the   formation   of   the   desired semiconductor  devices.   The  primary  substrate  further comprises a) conductive interconnection pads of a second thickness  formed  on  a bottom  surface  of  the  primary substrate according to the predetermined interconnection pattern,  b)  first isolation pads of a third thickness formed on the bottom surface of the primary substrate between  the  conductive  interconnection  pads,  and  c) interconnection pad caps of a  fourth thickness formed upon the surface of the interconnection pads opposite from the primary substrate, wherein the interconnection pad caps comprise a material suitable for wafer bonding, and further wherein the total  thickness of the second thickness  and  the  fourth  thickness  equals  the  third thickness.  The structure further comprises a secondary substrate having an oxide layer thereon bonded to the interconnection pad caps and the first isolation pads of the primary wafer.
Patent CA-2105941-C (CA)
Title: Benzene removal from hydrocarbon streams
Inventor: BELLOWS RICHARD J
IPC: C07C7/13
Filed: 1993-09-10
Granted: 2002-02-26
Abstract: A method for the separation of benzene from a hydrocarbon stream, such as a gasoline boiling range stream, which comprises contacting the hydrocarbon stream with an adsorbent capable of selec-tively adsorbing the benzene from the stream, hydrogenating the adsorbed benzene to cyclohexane, and desorbing the cyclohexane from the adsorbent. The hydrogenation of the benzene to cyclohexane facilitates the removal of the benzene from the adsorbent.
Patent CA-2112093-C (CA)
Inventor: BURGENER JOHN A
IPC: B05B7/24
Filed: 1993-12-21
Granted: 1995-02-21
Abstract: A method and apparatus are provided for atomizing liquids into a gaseous medium in a fine, highly consistent, uniform dispersion. This pneumatic nebulizer method is designed to allow a wide range of liquids to be atomized without plugging. The process atomizes liquids directly from the surface of a body of liquid, allowing non-wetting materials to be used for the nebulizer. The liquid path does not require a narrowing of diameter at the exit area, nor along the length of the system, which minimizes plugging. The gas orifice is on or near the edge of the liquid path, and may be very much smaller than the liquid path's area. The nebulizer has no suction. The liquid flow is controlled by pumping the liquid to the nebulizer. Most pneumaticnebulizer systems rely on the gas flow surrounding the liquid path, the liquid path surrounding the gas flow, or the gas flow being at right angles to the liquid flow. This nebulization process has the gas and liquid flow independently brought together,commonly along side each other.
Patent CA-2114308-C (CA)
Title: Cd-case with holding clamp
Inventor: LUCKOW HANS-JURGEN
IPC: G11B33/04
Filed: 1994-01-26
Granted: 2002-06-11
Abstract: The invention concerns a case for storing compact discs. In accordance with the invention, this case is constructed in such a way that the interior part in the area of the clamping slots is provided with a profile closure strip in such a manner that the interior ridges separating the clamping slots from each other protrude farther into a direction away from the interior part than the outer ridges limiting the clamping slots at the outside.
Patent CA-2116458-C (CA)
Inventor: BERGISHAGEN FINN
IPC: C09J11/06
Filed: 1992-09-22
Granted: 1998-05-05
Abstract: Une adhésion améliorée est obtenue par incorporation dans une matière plastique adhésive et/ou d'étanchéité d'une quantité efficace de cyclodextrine ou d'un complexe de cyclodextrine et d'agent gonflant. Là où le complexe de cyclodextrine et d'agent gonflant est employé, un mélange expansible est formé.
Patent CA-2118474-C (CA)
Inventor: ZADEH ROHOLLAH ESMAIL
IPC: F21Y103/37
Filed: 1994-10-19
Granted: 1999-02-16
Abstract: A florescent lamp fixture for retrofitting in a cylindrical ceiling or wall-type housing designed to support an incandescent lamp providing elimination through the open end of the housing, the fixture being formed of a transverse insulated plate securable within the housing by at least three radiating spring elements, the plate serving to support a transformer on its upper side and a plug-in socket to receive, through an opening in the plate, one or more florescent lamps to extend from the opposite lower side of the plate.  Wiring between the transformer and socket is provided to plug the fixture into the socket for the replaced incandescent lamp.
Patent CA-2121506-C (CA)
Inventor: AKONG MICHAEL ANTHONY
IPC: G01N33/68
Filed: 1992-12-18
Granted: 2001-06-12
Abstract: Highly efficient automated measurement apparatus and methods for automated drug screening procedures are provided. The apparatus is capable of initiating and measuring rapid or transient events such as cell receptor and/or ion channel activity. The apparatus of the invention is capable of aligning with predetermined positions, one or more samples contained in a multi-well container, initiating the reaction with reagent addition and measuring a resultant attribute for a period of time. The appara-tus is capable of substantially continuously measuring and recording data corresponding to the measured attribute before, during and after initiation of the reaction so that a time course of the rapid or transient event may be determined. After the reaction(s) are complete in one or more wells of the multi-well container, the apparatus can align one or more different wells to be assayed with the predetermined position and repeat the cycle until a predetermined number of wells are assayed. Automated drug screen-ing methods employing the apparatus are also provided for screening for compounds which activate, inhibit or potentiate cellular ion channel or receptor activity. The assays are fluorescent indicator-based assays which utilize viable cells containing in their cyt-oplasm effective levels of a fluorescent indicator which is responsive to changes in ion concentration. Activation of the ion chan-nels or receptors is initiated in the automated measurement apparatus by injection into one or more predetermined cell-contain-ing wells of a reagent which is a known or putative activator of the ion channels or receptors of interest. The resultant activity of the ion channels or receptors (which causes changes in ion concentration in the cytoplasm) is determined by measurement of flu-orescence intensity changes of the indicator in response to an excitation wavelength.
Patent CA-2122032-C (CA)
Title: Cerebral biopotential analysis system and method
Inventor: CHAMOUN NASSIB G
IPC: G06F17/00
Filed: 1992-10-23
Granted: 2003-10-21
Abstract: A system and method to obtain (19) unipolar EEG signals from electrodes (13) attached to a patient's head (14). The EEG signals are detected by the electrodes and transmitted over a patient cable (15) to the EEG data acquisition and analysis system (12). The system (12) generates all power spectrum, bispecwm, and higher-order spectrum arrays. These arrays are then used in conjunction with clinically predetermined coefficient arrays to producx diagnostic indices. These indices are sent to the host com-puter (18) and are displayed on the graphics display (2). Prints output of the diagnostic index is also available on the hard copy output device (22) which is connected to the microcomputer (18). The operator interacts with the acquisition and analysis compo-nents of the system by means of a user input device (24) with feedback on the graphics display (20).
Patent CA-2127157-C (CA)
Title: Reactive power compensating apparatus capable of reducing in switching loss in steady state operation thereof
Inventor: MORI TAKASHI
IPC: H02J3/18
Filed: 1994-06-30
Granted: 1996-11-26
Abstract: According to the present invention, there is pro-vided a self-commutated static var compensator for sta-bilizing a power system by controlling an output of a self-commutated converter for receiving/supplying power from/to the power system.  A constant system voltage maintaining controller calculates a first target value signal of the reactive current in accordance with a dif-ference between a reference voltage and a voltage detected by a voltage detector, and a reactive current controller generates a second target value signal of the reactive current in accordance with a difference between the first target value signal of the reactive current and a detected current.  A converter controller applies a gate driving pulse to the self-commutated converter in response to the second target value signal of the reac-tive current and second target value signal of the active current.  A loss reduction circuit stops the gate driving pulse corresponding to the second target value of the reactive current from being supplied to the gate of the self-commutated converter when reactive power output from the self-commutated converter is close to zero.
Patent CA-2127878-C (CA)
Inventor: OMURA SATOSHI
IPC: C12R1/66
Filed: 1993-03-26
Granted: 1997-07-08
Abstract: Une substance FO-1289, comprenant la substance FO-1289A, la substance FO-1289B, la substance FO-1289C et la substance FO-1289D, qui possède une activité inhibitrice sur l'acylCoA-cholestérol-acyl-transférase, est produite par culture d'Aspergillus Sp. FO-1289. La substance est utile pour le traitement et la prévention d'une maladie attribuable à l'accumulation de cholestérol.
Patent CA-2132008-C (CA)
Title: Grain drill unit having seed firming wheel
Inventor: JOHNSON ERIC
IPC: A01C5/06
Filed: 1992-11-09
Granted: 1999-01-19
Abstract: A seed firming wheel assembly (66) is supported in close-coupled relationship wi th the rear portion of the paired discs (36, 38) of an opener (30) to gently press deposited seeds down into the bottom of a V-shaped trench formed by the discs (36, 38). The mounting arm (94) of the assembly (66) is configured in a manner to minimize the accumulation of mud and trash residue, while the wheel (130) itself may take the form of a solid, circular block of ultra-hig h-molecular-weight polyethylene with slick sides (218) to reduce soil adherence or a spoked, molded plastic wheel (118) having op en spaces (134) between the spokes to permit soil pass-through.
Patent CA-2134407-C (CA)
Inventor: WOOLLEY PAUL A
IPC: B64C5/08
Filed: 1994-10-26
Granted: 2001-11-20
Abstract: The present invention relates to a control system for an aircraft to compensate for crosswinds on landings. In one embodiment, the control system includes two mutually identical control surfaces having common end points, respectively; and an actuator to move completely the two mutually identical control surfaces, as needed to compensate for the crosswinds on landing.
Patent CA-2134429-C (CA)
Title: Device with spectral purity for the remote exchange of information between a portable object and a station
Inventor: LEVIONNAIS PHILIPPE
IPC: H04B5/00
Filed: 1994-10-26
Granted: 2004-06-22
Abstract: A device with spectral purity for the remote exchange of information between a portable object and a station. The phase variation between the first and second alternating voltages (VEX and VEY), which is induced by the switchings of the electronic circuit of the portable object as a function of information to be transmitted to the station, enables the station-processing means (SPM) to deduce the said information therefrom.
Patent CA-2134989-C (CA)
Title: Humidifier and method for humidifying air
Inventor: MILLER THOMAS L
IPC: B01J19/32
Filed: 1994-11-03
Granted: 1995-05-05
Abstract: A humidifier system includes a spray apparatus in a housing which sprays a mist of water droplets onto a mist eliminator to intercept the mist of water droplets.  The mist of droplets is captured in a liquid phase by the mist eliminator and is substantially completely converted into a vapor phase in the form of increased humidity in the air stream.  A humidity sensor located downstream of the mist eliminator senses the humidity of the stream of air.  A controller controls the quantity of water sprayed in response to the humidity sensed to maintain a predetermined humidity in the humidified stream of air.  A second humidifier includes a heater which creates a region of intense heat to instantaneously evaporate water mist directed thereon in a stream of air.  In a third embodiment, water and pressurized air are simultaneously injected into a region of intense heat.  The pressurized air rapidly expands within the region of intense heat and thereby adds energy to the system to ensure virtually complete evaporation of the water.