baber/WOPTO huggingface dataset:
Patent CA-1291524-C (CA)
Title: Speed control circuit for an electric motor
Inventor: WERNER PAUL H
IPC: H02P7/295
Filed: 1987-10-23
Granted: 1991-10-29
Abstract: Abstract of the Disclosure A speed motor control circuit for an electric motor of the  type which drives  a louvered sign  assembly between predetermined  rotational  positions.    The  speed  control includes a  silicon controlled rectifier  which is connected in  series  between  the motor  and  the  power  supply.   A unijunction transistor has one of its bases connected to the gate of  the silicon controlled  rectifier to switch  on, or activate,  the  silicon  controlled rectifier  whenever  the unijunction  transistor  becomes  conductive.    A  variable resistor  controls   the  bias   to  the  emitter   for  the unijunction transistor  in order to vary  the time period or duty cycle that the unijunction transistor conducts and thus the time  period or duty  cycle that the  silicon controlled recitifer is in its conductive state. A switch assembly and timing  module are  also employed to  activate the  motor at predetermined time intervals and for a predetermined angular rotation of the motor shaft.
Patent CA-1305836-C (CA)
Title: Water based aerosol flame-proofing composition and method of manufacture
Inventor: ACITELLI FRANK
IPC: C09K3/30
Filed: 1987-11-02
Granted: 1992-08-04
Abstract: WATER BASED AEROSOL FLAME-PROOFING COMPOSITION            AND METHOD OF MANUFACTURE                 ABSTRACT OF THE DISCLOSURE Aerosol solutions for use in treating consumer goods to render them fire-proof are formulated for packaging under pressure in a valved container, and comprise a mixture of ammonium slats and an alkali metal silicate.  The solution may further comprise one or more of urea, ammonium bromide, a low molecular weight alcohol, an aromatic oil, a surfactant, an acid, fragrance, etc.  A method for making the solution is also disclosed.
Patent CA-1336915-C (CA)
Inventor: DITCHER JACK
IPC: F16L41/08
Filed: 1987-11-04
Granted: 1995-09-05
Abstract: A gasket formed of an extruded elastomeric material which is joined at its ends to form a closed loop.  The gasket has a cross-section defined by a T-shaped anchoring flange integrally joined to a substantially pear-shaped portion which tapers in the radially inward direction.  An integral flange extends diagonally away from the radial direction and serves to significantly enhance the water-tight seal provided by the resilient gasket, as well as significantly increasing the range of pipe diameters capable of being accommodated by the gasket.  Disc-shaped or cylindrical-shaped inserts insertable into cavities at angular intervals about the wall of the opening engage the gasket to center the pipe and to aid in reducing shearing forces.
Patent CA-1283842-C (CA)
Title: Chair seat inclining and moving device
Inventor: YAMAZAKI KOICHI
IPC: A47C7/28
Filed: 1987-11-20
Granted: 1991-05-07
Abstract: ABSTRACT     The seat of a chair comprises stepped engaging portions provided at the rear portion of the seat plate and stepped engaging portions provided at the lower portion of the reclining back seat are fitted with stepped engaging portions provided at the front portion and the upper portion of a connecting plate bending with a gentle obtuse angel, respectively, opposing sides of the stepped engaging portions of the seat plate and the stepped engaging portions of the connecting plate are pivotally fixed by connecting members which energize the connecting plate upwardly, and opposing sides of the stepped engaging portions of the connecting plate and the stepped engaging portions of the reclining back seat are pivotally fixed by connecting members which energize the reclining back seat forwardly.
Patent CA-1307641-C (CA)
Title: Folding display frame
Inventor: WICHMAN WILLIAM J
IPC: E04B1/344
Filed: 1987-12-09
Granted: 1992-09-22
Abstract: FOLDING DISPLAY FRAME Abstract of the Disclosure A collapsible framework constructed of rods pivotally joined at their ends to hubs to form a self-standing unit when expanded and to fold into a small set of nearly parallel rods when folded.  The hubs are designed to pivotally join the ends of four rods, with the plane defined by the pivot axes of one pair of opposing rods being offset from the plane defined by the pivot axes of the other pair of opposed rods attached to the same hub.   A stab connection latch locks two hubs together and secures the framework in the expanded position.   Folding channel bars are attached to knobs on vertically aligned hubs by key-slots, the key-slots of one channel bar being of progressively shorter length going from the top-most to the bottom-most of the vertically aligned hubs to which the bar is attached.
Patent CA-1288467-C (CA)
Title: Load commutated inverter and synchronous motor drive embodying the same
Inventor: ABBONDANTI ALBERTO
IPC: H02M7/525
Filed: 1988-02-05
Granted: 1991-09-03
Abstract: ABSTRACT OF THE DISCLOSURE         In  a  load  commutated  inverter  system,  the recovery time of the outgoing static switch is extended by applying an auxiliary commutation voltage in series with the  associated phase line.  This action is triggered in response to  the  gating  signal  of  the  on-coming  switch during  a  time  interval  initiated before  the  expiration of the overlap time interval.  Its duration extends by a predetermined  amount beyond the normal recovery time of the outgoing switch.
Patent CA-1310927-C (CA)
Title: Process for preparing algae having improved biological effects
Inventor: LITERATI-NAGY PETER
IPC: C12N1/12
Filed: 1988-03-18
Granted: 1992-12-01
Abstract: PROCESS FOR     PREPARING ALGAE HAVING IMPROVED BIOLOGICAL     EFFECT     A b s t r a c t The invention relates to the preparation of selenium--rich algae having an improved biological effect. Under sterile cultivating conditions, in a photosynthetic way or with the exclusion of air, an alga strain is developed which is capable to suitably incorporate selenium, and culti-vated on a culture medium containing selenium in a concentra-tion between 10-7 mole/litre and 2x10-3 mole/litre.
Patent CA-1298466-C (CA)
Title: Driveway snow plow
Inventor: MCGARRAH JAMES E
IPC: E01H5/00
Filed: 1988-03-31
Granted: 1992-04-07
Abstract: ABSTRACT OF THE DISCLOSURE         A snow plow assembly which can quickly and easily be attached to and detached from a variety of different type vehicles.  The assembly including a tongue member pivotably connected to a bracket which in turn is attached to a plow blade.  The tongue member having a coupling device on its other end for attachment to a vehicle while a stabilizer bar is also attached at one of its ends to the vehicle so as to prevent lateral movement of the assembly.  The plow blade is locked at a desired angle by the insertion of a single pin member through a plurality of aligned holes formed in the stabilizer bar, tongue member, and the support bracket.  Additionally, compression springs are used to allow the plow blade to tip with respect to the support bracket so as to insure that both the plow assembly and the vehicle are not subject to undue stress when the blade hits an immovable object.
Patent CA-1320643-C (CA)
Title: Abrasive blasting apparatus
Inventor: NICHOLSON BRUCE
IPC: B05B7/14
Filed: 1988-04-08
Granted: 1993-07-27
Abstract: ABSTRACT ABRASIVE BLASTING APPARATUS     A  method  and  apparatus  for  mixing  separately-contained media such as would be used in a wet abrasive blasting  operation  comprises  a  receptacle  (10)  for a liquid/abrasive medium, a receptacle (11) for a liquid, and a delivery line (20) along which pressurised fluid is adapted to be fed. The receptacles (10, 11) communicate via pipes (22,  23) with the delivery line (20) so that the liquid and the liquid/abrasive medium are entrained by  the  pressurised  fluid.  The  receptacles  communicate with each other via a hole  (14)  to balance the fluid pressure system between them and a means (15, 19) is also provided to deliver pressurised fluid into at least one of  the receptacles  (10,  11)  in order substantially to balance the fluid pressure system between the receptacles (10, 11)  and the delivery line  (20) and to facilitate outflow of the liquid/abrasive medium and the liquid into the entraining fluid. The method comprises entraining the separately-contained media such as liquid/abrasive medium and  the  liquid medium  in a flow of pressurised fluid whilst simultaneously applying the pressurised fluid to the  media  in  their  receptacles  (10,  11)  in  order  to balance the fluid pressure system between the receptacles themselves and the receptacles and the delivery line and to assist their egress into the entraining flow.
Patent CA-1297971-C (CA)
Title: Multifunction active array
Inventor: MIGLIA EGIDIO
IPC: H01Q3/26
Filed: 1988-04-26
Granted: 1992-03-24
Abstract: ABSTRACT OF THE DISCLOSURE A multifunction active array system is disclosed, wherein  the  array  aperture may be  partitioned  into  a plurality of arbitrary  subapertures.   The array  system includes N radiative elements, each coupled to a corre-sponding active module.  Each module is in turn connected to an aperture partition selector, which includes an M-way power divider/combiner device, having a module port and M device ports.  Each device port is coupled through an RF switch to a partition port of the device.  M N-way mani-folds are provided, having N manifold ports coupled to a respective one of said partition ports of each selector. The manifolds are coupled to a receiver and an excitation source.   Each partition may  be  formed  by  the  desired connection of a particular module to a manifold by the respective positions of the RF switches.  The array system provides the capabilities of partitioning the array into M or  less  subapertures  to  simultaneously  generate  sum patterns,  difference patterns, guard patterns, and adaptive  nullings.  The  partitions  on  receive  and transmit  are  independent,  and  they may differ  in  any arbitrary manner.  The subapertures may overlap.
Patent CA-1295114-C (CA)
Title: Method of manufacturing a heat-exchanger
Inventor: ISHIKAWA KAZUNORI
IPC: B23K1/00
Filed: 1988-05-16
Granted: 1992-02-04
Abstract: A METHOD OF MANUFACTURING A HEAT-EXCHANGER          ABSTRACT   A method of manufacturing a heat-exchanger with excellent pitting corrosion resistance is disclosed, wherein, in the manufacture of an aluminum heat-exchanger to be brazed under heat in a furnace having an inert gas atmosphere using fluoride flux, Zn at 430 to 620°C is fed to the furnace to melt and vaporize it and the vapor of Zn is allowed to make contact with the fin material and the tube material coated with said flux simultaneously with the brazing under heat of these aluminum components, or the fin material coated with said flux and dried, and the tube material without flux, are assembled and retained for not less that 1 minute in the vapor of Zn of a temperature lower than the melting point of said flux and higher than the temperature at which these components are heated, in the inert gas and thereafter brazing is performed at a temperature higher than the melting point of said flux.  A method of concentrating Zn on the surface layer of said A1 components and a method of generating the Zn vapor for the concentration of surface Zn are also disclosed.
Patent CA-1295669-C (CA)
Title: Converter system for coupling two high voltage three-phase networks
Inventor: WIENDL HEINZ
IPC: H01L25/10
Filed: 1988-07-11
Granted: 1992-02-11
Abstract: ABSTRACT OF THE DISCLOSURE           The converter system couples two high voltage three-phase networks.  Two converter transformers are associated with each network to be coupled.  Each transformer has secondary windings.  One secondary winding associated with a first network is Y-connected while the other is delta-connected.  The converter transformers operate on a three-phase full wave rectifier with twelve semiconductor rectifier components.  The arrangement of valve towers, a stacking of semiconductor components, is designed to keep a base area or a so-called valve housing in which the valve towers are accommodated as small as possible.  The semiconductor components are arranged in uniform modular assemblies and may be stacked as modular components having insulating spacings between components which are also uniform.  A tower of uniform modules is formed in association with each of the phases of the three-phase secondary windings of the converter transformers.  The number of modules defines the number of stories of the tower.  The number of modules is varied in accordance with the desired power throughput.  The system provides DC short couplers for asynchronous networks of different powers while utilizing the same basic design concept so that a power match can be made by a corresponding number of modules forming a tower with the same insulating spacings in a standardized design.
Patent CA-1309521-C (CA)
Title: Color display
Inventor: YAMAGUCHI HIDEFUMI
IPC: G02B5/20
Filed: 1988-07-22
Granted: 1992-10-27
Abstract: ABSTRACT    A colour display for producing substantially homogenous display quality for vertical and oblique, as well as horizontal lines calls for the sequential arrangement of red, green, and blue picture elements, respectively, in diagonal directions of first, second and third coincident rectangles such that the red, green and blue picture elements are respectively positioned at the vertices of their respective rectangles.
Patent CA-1338980-C (CA)
Title: Bone cement for sustained release of substances
Inventor: ARROYO NESTOR
IPC: A61K47/00
Filed: 1988-07-29
Granted: 1997-03-11
Abstract: A bone cement is disclosed wherein the liquid component contains a therapeutic or diagnostic sub-stance in combination with an emulsifying agent for said substance.
Patent CA-1340206-C (CA)
Title: Arylenediamino substituted triazine
Inventor: WHEELER EDWARD LOCKWOOD
IPC: C08K5/3492
Filed: 1988-08-24
Granted: 1998-12-15
Abstract: A new class of antiozonant compounds, namely tris(N-alkyl-p-phenylenediamino)-1,3,5-triazine compounds, are incorporated into thermosetting compositions having at least one highly unsaturated rubbery polymer and, optionally, other elastomers having lesser unsaturation, such as EPDM and butyl rubber.  Thermosetting compositions are most useful as tires, belts, hose, sheeting and other rubber articles. The compositions which may be preferably cured with blends of organic peroxide and sulfur donor accelerators.
Patent CA-1309401-C (CA)
Title: Fungicides
Inventor: BUCKLEY ALAN J
IPC: C07D521/00
Filed: 1988-09-09
Granted: 1992-10-27
Abstract: ABSTRACT                      FUNGICIDES     Fungicidal compounds of the formula (I) :                     (I) and stereoisomers thereof, wherein K is oxygen or sulphur; Z is optionally substituted aryl or optionally substituted heteroaryl, X is O, S(O)n, NR4, CR1R2, CHR5, CO, CR1(OR2), C=CR1R2, CHR1CHR2, CR1=CR2, CHR1CR2=CH, C?C, OCHR1, CHR1O, OCHR1O, S(O)nCHR1, S(O)nCHR1O, CHR1S(O)n, CHR1OSO2, NR4CHR1, CHR1NR4, CO2, O2C, SO2O, OSO2, CO.CO, COCHR1, COCHR1O, CHR1CO, CHOH.CHR1, CHR1.CHOH,   ,          , CONR4, OCONR4, NR4CO, CSNR4, OCS.NR4, SCO.NR4, NR4CO2, NR4CS, NR4CSO, NR4COS, NR4CONR4, S(O)nNR4, NR4S(O)n, CS2, S2C, CO.S, SCO, N=N, N=CR1, CR1=N, CHR1CHR2CH(OH), CHR1OCO, CHR1SCO, CHR1NR4CO, CHR1NR4COR4, CHR1CHR2CO, O.N=CR1, CHR1O.N=CR2, CO.OCR1R2, CHR1CHR2CHR3, OCHR1CHR2, (CH2)mO, CHR1OCHR2, CHR1CHR2O, OCHR1CHR2O, S(O)nCHR1CHR2, CHR1S(O)nCHR2, CHR1CHR2S(O)n, CR1=NNR4, NR4N=CR1, CHR1CONR2, CHR1OCO.NR2, CH=CHCH2O, COCHR1CHR2O or (R5)2P+CHR2O-; A, B and E, which may be the same or different, are H, hydroxy, halo, C1-4 alkyl, C1-4 alkoxy, pp 34461 C1-4 haloalkyl, C1-4 haloalkoxy, C1-4 alkylcarbonyl, C1-4 alkoxycarbonyl, phenoxy, nitro or cyano; R1, R2 and R3, which may be the same or different, are H, C1-4 alkyl or phenyl; R4 is H, C1-4 alkyl or COR1, R5 is optionally substituted phenyl; Q-is a halide anion; n is 0, 1 or 2 and m is a 3, 4 or 5; except that when Z is unsubstituted phenyl and X and K are oxygen, A, B and E are not all hydrogen.
Patent CA-1330826-C (CA)
Title: Surge suppresor with insulating meltable wall and leaf springs for overcurrent shorting
Inventor: BIEDERSTEDT LUTZ
IPC: H01T1/14
Filed: 1988-09-21
Granted: 1994-07-19
Abstract: ABSTRACT OF THE DISCLOSURE          A  thermal  protection  device  for  overvoltage suppressor  which  includes  spaced  contacts  mounted  in overvoltage suppressor magazines of communication systems. A bow-type spring and a melt element are arranged with the overvoltage suppressor which is mounted in a chamber of a case body or housing.  The melt element is pierced by at least one arm of the bow-type spring when an overvoltage occurs  for  short-circuiting  the  two  contacts  of  the overvoltage suppressor.  A thermal protection device with simple components prevents creepage currents between the bow-type  spring  and  the  contacts  of  the  overvoltage suppressor, a chamber for the overvoltage suppressor is adjacent and abutting to a separate chamber formed in the case body for accommodating a bow-type spring.  Between the two chambers there is a separating wall comprising a thermoplastic melt element.
Patent CA-1307029-C (CA)
Title: Endless polarization control for optical heterodyne or homodyne detection of an optical signal beam
Inventor: MAHON CATHAL J
IPC: H04B10/04
Filed: 1988-09-23
Granted: 1992-09-01
Abstract: PHN 12.270                                23-11-1987 ABSTRACT: "Device for optical heterodyne or homodyne detection of an optical signal beam and receiver provided with such a device."          A device for optical heterodyne detection is described, using only two adjustable elements influencing the state of polarisation and having a limited control range (51, 52) in order to realize an endless polarisation control. In a first embodiment a temporary loss of signal intensity of at most 3 dB is accepted. This signal loss is avoided if a circuit of non-adjustable optical components (81, 82, 83) is incorporated in the heterodyne detection device.  Figure 1.
Patent CA-1314300-C (CA)
Inventor: REBER LARRY F
IPC: B60P3/24
Filed: 1988-10-03
Granted: 1993-03-09
Abstract: ABSTRACT Angular baffles for vehicle mounted tanks are disclosed which reduce the concentration of vehicle destabilizing inertial forces of contained liquids, generated by movements encountered during transportation. The baffles include symmetrical, hollow internal baffles antipodally positioned with respect to each other, which produce attenuation of such forces by redirecting them through deflection off the angular surface of the baffles into balanc-ing force components, and by otherwise dampening liquid surges.
Patent CA-1319453-C (CA)
Inventor: SORENSEN JAMES L
IPC: B03D1/14
Filed: 1988-12-09
Granted: 1993-06-22
Abstract: Abstract of the Disclosure An improved method of separating organic solvents from aqueous process streams is disclosed in connection with a copper solvent extraction/electrowinning process.  An aqueous solution having droplets of an organic solvent entrained therein is admitted to the upper part of a vertically extending vessel, and air bubbles are passed therethrough from an air inlet near the bottom of the vessel.  The aqueous solution is continually removed from a point at the bottom of the vessel beneath the point at which the bubbles are admitted, such that countercurrent flow of the bubbles and solvent occurs.  The bubbles bind the droplets of organic solvent and can be controlled to form a froth on the upper surface of the solution within the vessel.  The froth can readily be collected and the organic solvent condensed therefrom.
Patent CA-1302437-C (CA)
Inventor: HARANDI MOHSEN N
IPC: B01J29/70
Filed: 1988-12-22
Granted: 1992-06-02
Abstract: PRODUCTION OF ETHERS FROM OLEFINS                      ABSTRACT          A process for the production of ethers from an olefin containing feedstock.  The process, which uses two stages for the production of ethers comprises, in a first stage, isomerizing an olefin containing feedstock over a thermally stable layered metal oxide type catalyst having interspathic polymeric silica between the layers so as to produce iso-olefins and then, in a second stage, reacting the resultant iso-olefins with alcohols in the presence of an etherification catalyst so as to produce ethers from the isoolefins.
Patent CA-1322398-C (CA)
Inventor: AKEYOSHI KAZUYUKI
IPC: H05K9/00
Filed: 1988-12-23
Granted: 1993-09-21
Abstract: ABSTRACT OF THE DISCLOSURE An electromagnetic wave shielding transparent body comprising one or more transparent sheets, a transparent conductive layer formed an a first electric conductor on at least one of said transparent sheets, and a second electric conductor separated from said transparent conductive layer.
Patent CA-1335521-C (CA)
Inventor: NODA HIDEYOSHI
IPC: C09D151/00
Filed: 1989-05-10
Granted: 1995-05-09
Abstract: The present invention is related to a water-borne coating composition which has excellemt storage stability and coating appearance.  The coating composition employs a specific graft resin having a branch chain with a molecular weight of 1,000 to 4,000 and a principle chain, and has a total molecular weight of 5,000 to 100,000, either the branch chain or the principal chain is hydrophobic and has a solubility parameter of 8.0 to 11.5, the other is hydrophilic and has a solubility parameter of 10.0 to 13.0 and the absolute value of the difference between the solubility parameters is at least 1.  The water-borne coating composition of the present invention is especially suitable for electrocoating.
Patent CA-1318049-C (CA)
Title: Liquid segment polyurethane gel and couplers for ultrasonic diagnostic probe comprising the same
Inventor: SHIKINAMI YASUO
IPC: A61B8/00
Filed: 1989-06-02
Granted: 1993-05-18
Abstract: ABSTRACT OF THE DISCLOSURE       A  one-component  system polyurethane  gel  and  a coupler for ultrasonic diagnostic probes comprising the same are disclosed.   The gel is obtained by reacting a polyol having a  room temperature  liquid alkylene oxide chain and/or a polyurethane polyol prepolymer  having  a room  temperature  liquid  alkylene  oxide  chain  with  a polyurethane  polyisocyanate  prepolymer  having  a  room temperature liquid alkylene oxide chain.   The gel causes no bleeding or evaporation of a dispersion medium and is therefore  excellent  in  safety  to  the  human  body  and preservation stability.
Patent CA-1314455-C (CA)
Title: Angiographic catheter with balanced dye injection openings
Inventor: BODICKY RAYMOND O
IPC: A61M25/00
Filed: 1989-06-07
Granted: 1993-03-16
Abstract: S-7680-Ca ABSTRACT     An improved non-whip angiographic catheter has a preselected number of openings of preselected size, location and orientation along the straight portion of the catheter near the distal tip so as to distribute the force of the high-pressure dye injection jets while maintaining the non-whip characteristic.  At least one opening in the catheter long portion is provided facing the open end of the tip portion so that the dye trajectories from the catheter tip opening and the catheter long portion opening are generally coplanar and perpendicular so as to interfere with each other for improved dye dispersion.  At least two reaction openings of predetermined size are provided on the opposite side of the catheter long portion at preselected locations, the dye trajectories of these three reaction openings also being generally coplanar with the trajectories of the first. opening and the open end of the catheter tip.  The special openings have sufficiently small  diameters and are specially staggered so as to reduce the possibility of kinking the catheter during placement of the catheter into position for diagnostic angiography.
Patent CA-1332734-C (CA)
Title: Natriuretic hormone
Inventor: BRICKER NEAL S
IPC: A61K35/22
Filed: 1989-07-11
Granted: 1994-10-25
Abstract: ABSTRACT OF THE INVENTION    A  purified  naturally  occurring  natriuretic  compound, identified as Natriuretic Hormone, and a method for isolation of the compound.  The natriuretic compound has a molecular weight of about 360, a molecular formula of C21H28O5 and with a steroidal nucleus. The compound is useful as a diuretic in the treatment of diseases such as heart disease and hypertension.