baber/WOPTO huggingface dataset:
Patent CA-1290808-C (CA)
Title: Pwm inverter with a saturable core
Inventor: HARADA KOOSUKE
IPC: H02M3/335
Filed: 1987-09-04
Granted: 1991-10-15
Abstract: PWM INVERTER WITH A SATURABLE CORE                 ABSTRACT OF THE DISCLOSURE    A PWM inverter including a saturable core and a main circuit comprising a series circuit of a main winding and a resistor in which switching means applies a DC voltage across the main circuit by time ratio control with the polarity inverted alternately, and the on-off control of the switching means is accomplished by using a saturable transformer with a saturable core.
Patent CA-1340754-C (CA)
Title: Oil-filled capacitor
Inventor: DOHI HIDEYUKI
IPC: H01B3/22
Filed: 1987-09-15
Granted: 1999-09-21
Abstract: An improved oil-filled capacitor which is excellent in low temperature characteristics. The oil-filled capacitor is composed of at least partially a plastics material and is impregnated with an electrical insulating oil which oil is characterized in that it comprises 0 to 100% by weight of a fraction A containing components boiling within the range of 268 to 275°C (atmospheric pressure basis) and 100 to 0% by weight of a fraction B containing components boiling within the range of 280 to 310°C (atmospheric pressure basis) which fractions are recovered by distillation from the heavy by-product oil that is produced in the preparation of ethylbenzene by alkylating benzene with ethylene in the presence of an alkylation catalyst and the ratio of the integrated intensity as chemical shift at 120 to 155 ppm of the spectrum measured by C13 NMR method to the total integrated intensity at 0 to 155 ppm of the spectrum is 80% or higher with regard to said fraction A and tree same ratio is 72% or higher with regard to said fraction B.
Patent CA-1296494-C (CA)
Title: Doorknob assemblage
Inventor: LIBERG LARS
IPC: E05B3/06
Filed: 1987-09-28
Granted: 1992-03-03
Abstract: ABSTRACT         A doorknob assemblage comprises a rose plate (2), a hub sec-tion (3), a torsion spring (5), a locking device (6), and a dogging component (4).  The dogging component is intended to co-act with the hub section (3) on one side of the rose (2) and is provided with an axially extending abutment member (4a) which passes through a slot (2c) in the rose in a man-ner to co-act supportingly with the spring on the other side of the rose.  The two ends of the slot determine respective terminal positions of the doorknob or like latch release device.  The doorknob assemblage is fitted onto a spindle or pin (11) of square cross-section which extends from a lock housing (10).  The hub section (3) and the dogging component (4) may optionally comprise a single piece structure.            (Figure 1).
Patent CA-1280539-C (CA)
Title: Process and catalyst for production of a bisphenol
Inventor: LI SIMON M K
IPC: C07C27/00
Filed: 1987-10-08
Granted: 1991-02-19
Abstract: A B S T R A C T PROCESS AND CATALYST FOR PRODUCTION            OF A BISPHENOL The invention relates to a process for preparing a bisphenol comprising contacting at least two moles of a phenol per mole of a ketone in the presence of a sulphonated cation-exchange resin having a plurality of sulphonic acid sites ionically-bound to a group of the formula   in which each of a and b is an integer from O to 5 and each R individually represents, H, OH, SH or alkyl.  The catalyst exhibits high activity and selectivity at moderate reaction temperatures, low production of colored impurities, and high stability.  The catalyst is particularly useful for the reaction of phenol and acetone to produce bisphenol-A.
Patent CA-1293233-C (CA)
Title: Reflector for roadway lighting luminaire
Inventor: SALES KENNETH B
IPC: F21V7/09
Filed: 1987-10-16
Granted: 1991-12-17
Abstract: REFLECTOR FOR ROADWAY LIGHTING LUMINAIRE            Abstract of the Disclosure A luminaire comprises a reflector having a concave interior surface formed with bands of reflective facets.  The bands are organized in groups to provide the desired illumination pattern and enable the reflector to be formed in a simple fashion.  The groups of facets are organized in bands which extend arcuately around the interior of the reflector, each facet being oriented to reflect light to a desired luminance center on a roadway surface.
Patent CA-1308693-C (CA)
Title: Separation of granular solid material
Inventor: SHAH CHANDULAL L
IPC: B03B5/34
Filed: 1987-12-24
Granted: 1992-10-13
Abstract: ABSTRACT OF THE INVENTION     In  a  method  and  apparatus for separating solid granular material  of  different  densities  material  to   be   separated together  with  a control medium is fed to a first vessel 1 where it is divided into relatively heavy and light material and discharged through separate outlets 7, 8.  The  heavier  material discharged  through  the outlet 8 is fed directly to the inlet 14 of the second vessel 2 such as a cyclone  separator  and further separated  into  two  densities of material.  Supplementary dense medium may be added to the vessel 2 through inlet 16 or 17 if required.
Patent CA-1323620-C (CA)
Inventor: OHATA TOMOHISA
IPC: B01J23/56
Filed: 1988-01-15
Granted: 1993-10-26
Abstract: ABSTRACT OF THE DISCLOSURE A catalyst for purifying exhaust gas comprises a  honeycomb  carrier  of  monolithic  structure  and  a coating layer  deposited on  the honeycomb carrier and formed  with  a  catalyst  composition  containing  a refractory inorganic  oxide  in  the  form  of particles possessing average particle diamter in the range of 0.5 to 20 microns,   which refractory inorganic oxide has platinum   rhodium    deposited    thereon    in    high concentrations.    This catalyst is produced by coating the honeycomb carrier with an aqueous slurry containing the  catalyst  composition  and  calcining  the  coated carrier.
Patent CA-1299534-C (CA)
Title: System for dispensing insect screen
Inventor: LEWINGTON ROGER P
IPC: B65H16/00
Filed: 1988-02-19
Granted: 1992-04-28
Abstract: ABSTRACT      A system for dispensing insect screen in retail stores comprises a roll of screen, a box having a specially configured slot, and a holder for the box, all arranged such that the screening can be pulled from the box and cut to desired lengths.
Patent CA-1310950-C (CA)
Title: Process for recovering regenerated adsorbent particles and separating ash therefrom
Inventor: BERRIGAN JOHN K JR
IPC: B03D3/06
Filed: 1988-03-08
Granted: 1992-12-01
Abstract: ABSTRACT OF THE DISCLOSURE     Regenerated adsorbent particles, such as activated carbon, are recovered from a wet oxidation-regenerated mixed sludge liquor from a wastewater treatment system by diluting and settling a blowdown slurry from the wet oxidation reactor to obtain a first aqueous phase containing primarily regenerated adsorbent particles and fine ash particles and a first solids phase containing primarily grit particles.  The first aqueous phase is -combined with a portion of the regenerated adsorbent particle slurry withdrawn from the upper portion of the wet oxidation reactor and, after treatment with a dispersing agent and then an anionic flocculating agent, the resulting mixture is settled to obtain a second aqueous phase containing primarily fine ash particles and a second solids phase containing primarily regenerated adsorbent particles.  The second solids phase is recycled to the treatment system for reuse and, after treatment with a cationic flocculating agent, the second aqueous phase is settled to obtain a substantially particle-free third aqueous phase and a third solids phase containing primarily fine ash particles.  Slurries containing the grit and fine ash particles are combined and dewatered prior to disposal.     Docket:  99037/9098-6
Patent CA-1329160-C (CA)
Title: Process for the preparation of a macrocyclic compound
Inventor: REICHENBACH HANS
IPC: C12P19/44
Filed: 1988-03-10
Granted: 1994-05-03
Abstract: Process for the preparation of a macrocyclic compound Abstract of the Disclosure Macrocyclic compounds of formula I                                      (I) wherein either R is methyl and a double bond is in 9,10-positions or wherein R is hydrogen and a single bond is in 9,10-position, can be prepared microbiologically by culturing Sorangium cellulosum "So ce 26" (NCIB 12 411). These compounds are pesticides for controlling plant diseases and can be applied in conventional formulations.
Patent CA-1309877-C (CA)
Title: Optical sensor
Inventor: JONES GORDON R
IPC: G01N21/23
Filed: 1988-03-15
Granted: 1992-11-10
Abstract: ABSTRACT         OPTICAL SENSOR      An optical sensor comprises a polychromatic light source (3), a detector (4), and first and second polarisers (7) (8) disposed in the light path between the source and the detector.  The polarisation axis of the first polariser (7) is substantially orthogonal to that of the second (8), and there is a modulating element (6) of birefringent material disposed therebetween.  The modulating element is disposed such that a change in the parameter to be measured alters the optical path length of the polychromatic light through the modulating element, thereby changing the colour of the light incident on the detector (4).  The detector comprises first and second photo-responsive elements (9) (10), the responsivity with respect to wavelength of the first element (9) being different from that of the second (10).  Signals from the photo-responsive elements are fed to a microprocessor (13) which calculates the colour of the light incident on the detector as represented by two or more paramters on the Chromaticity (CIE) Diagram, and interprets this colour in terms of the parameter to be measured.
Patent CA-1300730-C (CA)
Title: Bracket for mounting wiring devices
Inventor: KITAMURA MASUO
IPC: H02G3/02
Filed: 1988-05-09
Granted: 1992-05-12
Abstract: ABSTRACT     A wall bracket for mounting wiring devices comprises a flat frame having first and second jambs which define therebetween an opening for receiving the body portions of the wiring devices.  The wiring device has a strap having mounting ears projecting on either side of the device and is attached to the frame with the mounting ears engaged into first and second slots formed in the frame.  The first slots are formed in the first jamb and open to the opening for receiving the mounting ears on one side of the device.  The second slots for receiving the mounting ears on the other side of the device are formed in a resilient strip extending along the second jamb in spaced relation outwardly thereof.  The resilient strip is integrally connected at its longitudinal ends to the ends of the second jamb respectively through U-shaped hinge sections which are bent within the plane of the frame so that the resilient strip is capable of flexing outwardly within that plane to permit the snap engagement of the mounting ears into the second slots.  With the hinge connections within the plane of the frame, it is possible to minimize the amount of rearward projection of the resilient strip yet assuring the snap engagement due to the flexing of the resilient strip.
Patent CA-1330345-C (CA)
Title: 3-phenylpropionic acid derivatives
Inventor: SCHWALGE BARBARA
IPC: A01N43/10
Filed: 1988-07-07
Granted: 1994-06-21
Abstract: ABSTRACT OF THE DISCLOSURE: 3-phenylpropionic acid derivatives of the general formula I                             I where R1 is hydrogen or halogen, R2 is halogen, R3 is unsubstituted or halogen-, C1-C4-alkoxy- or C1-C4-alkylthio-substituted C2-C6-alkyl, C5-C7-cycloalkyl-substituted C1-C6-alkyl, further C5-C7-cycloalkyl, C3-C6-alkenyl or C3-C6-alkynyl or, together with R4, a C2-C4-alkylene chain, R4 is hydrogen or unsubstitutad or halogen-, C1-C4-alkoxy-, C1-C4-alkylthio- or C5-C7-cycloalkyl-substituted C1-C6-alkyl; C3-C7-cycloalkyl: unsubstituted or halogen-substituted C3-C6-alkenyl or C3-C6-alkynyl or halogen or R4; togethor with R5 and the carbon atom of this substituent, is C3-C6-cycloalkyl which may be interrupted by an oxygen or a sulfur atom, R5 is unsubstituted C1-C6-alkyl or halogen-, C1-C4-alkoxy- or C1-C4-alkylthio-substituted C2-C6-alkyl  cyano or acyl (COR6) or alkoxycarbonyl (CO2R7), R6 denoting C1-C6-alkyl or, together with R4, a C3-C5-alkylene chain and R7 denoting unsubstitutsd or halogen-, C1-C4-alkoxy- or C1-45-alkylthio-substituted C2-C6-alkyl or unsubstituted or C5-C7-cycloalkyl-substituted C1-C6-alkyl, further C5-C7-cycloalkyl, C3-C6-alkenyl or C3-C6-alkynyl, with the proviso that R1 and R4 do not simultaneously denote hydrogen when R5 is cyano or CO2R7, processes for their manufacture, and their use as herbicides.
Patent CA-1320837-C (CA)
Title: Dispenser
Inventor: BIRD KENNETH J H
IPC: A47L15/44
Filed: 1988-07-18
Granted: 1993-08-03
Abstract: Abstract Method and apparatus for dispensing detergent from within a container comprises directing a water spray transversely of the container vertical orientation to dissolve and remove detergent in solution from the container.  The transverse direction of water spray greatly improves detergent dispensing performance and minimize clogging of the system during down times.
Patent CA-1327941-C (CA)
Title: Encapsulation of adjuvants within antiperspirant actives
Inventor: FERENTCHAK RUDOLPH
IPC: A61Q15/00
Filed: 1988-08-26
Granted: 1994-03-22
Abstract: ENCAPSULATION OF ADJUVANT WITH ANTIPERSPIRANT ACTIVES             Abstract of the Disclosure Antiperspirant formulations are provided in which water-immiscible adjuvants are encapsulated in thick-walled, hollow, substantially spherical particles of antiperspirant active, which is preferably a water-soluble compound or complex of a polyvalent METAL or metals.   The thick-walled particles resist rupture during normal handling and application of the antiperspirant formulation and provide slow release of the encapsulated adjuvant when the antiperspirant shell dissolves in perspiration.  The adjuvant may be a fragrance, an antibacterial, antimicrobial or antifungal agent,  a deodorant, or other dermatological preparation.  The encapsulation is accomplished by emulsifying the adjuvant in an aqueous solution of  the antiperspirant active, and spray drying the material in such a manner as to produce thick-walled, spherical particles with the liquid adjuvant in the hollow centers.
Patent CA-1325373-C (CA)
Inventor: WEN HORNG Y
IPC: F17C7/00
Filed: 1988-10-13
Granted: 1993-12-21
Abstract: ABSTRACT           A  method  to  detect,  measure or  remove trace amounts of condensible vapors  in compressed gases.    The  concentration  of  droplets  detected, measured  or  removed  may  be  as  low  as  part  per trillion.   The compressed gas comprising a carrier gas  and  condensible  vapors  is  discharged through a critical orifice in order to condense the vapors in the form of homogeneous droplets.   The droplets are either detected, or their concentration measured or removed from the expanded carrier gas.
Patent CA-1303803-C (CA)
Inventor: SAKAKI KATSUNORI
IPC: A47G27/02
Filed: 1988-10-24
Granted: 1992-06-23
Abstract: ABSTRACT OF THE DISCLOSURE     A carpet runner for temporarily covering a carpet to prevent it from becoming soiled or wet, the carpet runner comprising a walking zone in the center having a rugged face on the top surface and spikes on the bottom surface; and edge zones at either side of the walking zone, wherein the edge zones are heavier than the walking zone.
Patent CA-1316081-C (CA)
Title: Tool for rotation ring type barking machines
Inventor: MAGNUSSON LENNART
IPC: B27L1/04
Filed: 1988-10-26
Granted: 1993-04-13
Abstract: Abstract of the Disclosure A tool for rotation ring type barking machines comprises a swinging arm which is connected at one end via a screw connection with a holder on a shaft rotatably mounted in the rotor of the machine. The holder has two elongated grooves spaced apart by an intermediate ridge and adapted to accommodate two spaced-apart beads formed on the swinging arm. The two outer lateral faces defining the grooves are slop-ing in cross-section and converge toward one another at an angle slightly less than a corresponding angle of convergence between the outer lateral faces defin-ing said beads. Also the inner lateral faces of said beads and said ridge are sloping, and upon tightening of the screw connection at issue the beads are urged into the two grooves, the difference between said angles of convergence being gradually reduced toward zero until the inner bead faces come into contact with the lateral faces of the ridge, at which point the screw has been tightened with sufficient tensioning force.
Patent CA-1278684-C (CA)
Inventor: MARTINEZ GEORGE JR
IPC: F24F12/00
Filed: 1988-10-28
Granted: 1991-01-08
Abstract: ABSTRACT OF THE DISCLOSURE         A method and apparatus for utilizing heated water from an air conditioning condenser to heat water used to control temperatures  in  a  large building  including  a heat  exchanger connected to an air conditioner condenser for receiving water heated by the air conditioner condenser and transmitting said water from said heat exchanger to a cooling tower,  the heat exchanger also having connected thereto a liquid circuit means for circulating hot water to heating coils located in the build-ing, the heat exchanger effecting a heat exchanger between the hot water received from the condenser and the water to be uti-lized for heating the building.
Patent CA-1310781-C (CA)
Title: High temperature release sheet for printed circuit boards
Inventor: SIPOS PETER A
IPC: B29C43/20
Filed: 1988-10-03
Granted: 1992-11-24
Abstract: ABSTRACT OF THE DISCLOSURE            A process and nylon release sheet for manufacturing printed circuit boards from epoxy prepregs is disclosed.  In such process layers of the prepregs are separated from one another by a release sheet.  The release sheet comprises an aliphatic or aromatic nylon or nylon copolymer which is a condensation product of a dicarboxylic acid and a diamine.  The nylon film contains a heat stabilizer and an inorganic particulate antiblock additive, e.g. diatomaceous earth, glass beads, amorphous silica, talc, mica and molybdenum disulphide. The nylon may be toughened by the addition of a phosphorus-containing catalyst or an epoxide.
Patent CA-1322735-C (CA)
Title: Microorganism having low acetate forming capability, and process for production of useful substrate using same
Inventor: HAZE SHINICHIRO
IPC: C12P21/02
Filed: 1988-11-04
Granted: 1993-10-05
Abstract: MICROORGANISM HAVING LOW ACETATE FORMING   CAPABILITY, AND PROCESS FOR PRODUCTION     OF USEFUL SUBSTRATE USING SAME                 ABSTRACT OF THE DISCLOSURE Escherichia coli characterized in that a capability thereof of forming acetate is at most one fifth that of wild type Escherichia coli, and a process for producing a useful substance by cultivating the Escherichia coli to a high density and recovering the substance.
Patent CA-1294104-C (CA)
Title: Plasticizing assembly comprising a reinforcing skeleton and intended for use in a injecting unit of an injection molding machine
Inventor: HEHL KARL
IPC: B29C45/17
Filed: 1988-11-22
Granted: 1992-01-14
Abstract: ABSTRACT       PLASTICIZING ASSEMBLY COMPRISING A REINFORCING SKELETON     AND INTENDED FOR USE IN AN INJECTING UNIT OF AN INJECTION                            MOLDING MACHINE                 The reinforcing skeleton comprises skeleton elements, which constitute tracks for engaging stationary rollers for guiding the plasticizing cylinder during the cyclic axial reciprocating motion performed by the in-jecting unit during the injection molding sequence. Said skeleton elements consist of track bars, which are spaced from the central length portion of the plasti-cizing cylinder by radial spacers. One of said spacers consists of a plate, which is secured to the track bars and to the plasticizing cylinder. Two centering spacers are connected to the track bars and surround the plasti-cizing cylinder as a sliding fit. As a result, the guidance of the plasticizing cylinder is improved and it s components can be more easily assembled, Besides, essential functional elements, particularly elements of the heating means and the plug connectors, are more easily accessible for a replacement, for repairs and for an inspection.
Patent CA-1329114-C (CA)
Inventor: SAITO SORAI
IPC: D06F81/00
Filed: 1988-12-21
Granted: 1994-05-03
Abstract: ABSTRACT OF THE DISCLOSURE    According to this invention, there is provided a pressing board having longer sides and shorter sides, which has a rounded surface rounded along the shorter side, and in which a working surface for ironing employs an outer surface of the rounded surface.  During ironing, a contact state between an iron and the working surface almost becomes a line or point contact state to facilitate ironing.
Patent CA-1323433-C (CA)
Inventor: JONES JOHN W D
IPC: F02D45/00
Filed: 1988-12-22
Granted: 1993-10-19
Abstract: ABSTRACT OF THE DISCLOSURE     In aircraft it is known to display information about operation of the aircraft's gas-turbine engines, such as spool speed, engine temperature and fuel flow.  The flight engineer or pilot must check this display carefully during start-up to ensure that there are no abnormal start conditions of the engine.  In the present invention a processor is used to receive this information together with signals indicative of whether the aircraft is on the ground or in the air such as derived from an air speed sensor or undercarriage pressure switch.  The processor derives an indication of the rate of change of engine temperature and monitors the relationship between the signals to determine when the relationship is indicative of an abnormal start condition.  This is indicated on the display, such as by flashing the display of engine temperature.
Patent CA-1312654-C (CA)
Title: Mutual inductance current transducer, method of making, and electric energy meter incorporating same
Inventor: HEMMINGER RODNEY C
IPC: H01F38/28
Filed: 1989-02-15
Granted: 1993-01-12
Abstract: 54,408 ABSTRACT       A mutual inductance differential current transducer employs a toroidal coil mounted coaxially and generally centrally of the length of an alternating current conductor with a conductive sheet therebetween surrounding the conductor and of substantially the same length and in insulated relationship from the conductor.  The axial length of the coil is less than approximately one-third the length of the conductor, and the toroidal cross-section has a longer leg parallel to the axis of the conductor and a cross-sectional area eliminating the need for external capacitive and magnetic shielding.          The coil is wound with an integer number of layers of the same number of turns per layer, the total number of turns being selected to produce a predetermined range of voltage levels of the analog voltage signal output of the coil, produced in response to and representative of the differential current flow through the conductor.  The coil is wound utilizing only conventional toroidal coil winding controls with resultant winding defects in each layer producing corresponding abberations in the analog voltage signal output, the abberations of the respective such contributions for the 51                      54,408 corresponding, plural integer number of layers being substantially self-cancelling and thereby maintaining the substantially linear responsive character of the analog voltage signal output of the coil.
Patent CA-1320400-C (CA)
Title: Method and apparatus for producing lipid vesicles
Inventor: YIOURNAS COSTAS
IPC: A61K9/127
Filed: 1989-03-03
Granted: 1993-07-20
Abstract: ABSTRACT          The present invention provides an apparatus and method for manufacture of multilamllar or paucilamellar lipid vesicles.  The apparatus and method use shear mixing in a substantially cylindrical mixing chamber having at least one tangential input for rapid production of the lipid vesicles.