baber/WOPTO huggingface dataset:
Patent CA-2007517-A1 (CA)
Title: Preprocessor auxiliary power supply
Inventor: VENTURINI MARCO
IPC: H02M3/155
Filed: 1990-01-10
Abstract: Abstract of the Disclosure A preprocessor circuit for a front end based power converter utilizes a choke winding, a free-wheeling diode connected across the choke winding, and a semiconductor power switch.  An auxiliary power supply for generating low voltage power for semiconductor switches and the like includes a secondary winding coupled to the choke winding.  The secondary winding has a predetermined turns ratio with respect to the choke winding. The voltage induced into the second winding is rectified and summed to produce an output voltage which is equal to the input voltage to the preprocessor circuit divided by the turns ratio between the choke winding and the secondary winding.
Patent CA-2007867-A1 (CA)
Inventor: IVEY DON L
IPC: E01F15/14
Filed: 1990-01-16
Abstract: An impact attenuating barrier wall (68), in particular a concrete barrier wall terminal, has a structural concrete base (70) with a top channel portion adapted to receive a linear array of low strength reinforced concrete modules (72, 84), each composed of three crushable layers: a bottom layer (74) of semi-crushable, higher strength concrete adapted to secure reinforcements and S-beam connectors, to the base, an intermediate layer (76) of lower strength material and a top layer (78) of intermediate strength material. The last module (84), proximate the obstacle, has steel reinforcement in a triangular ramp configuration to cause the impacting vehicle to rise up to avoid the obstacle, if said vehicle has crushed all the preceding modules (72). For the structural concrete base (70) to coact with the undercarriage of the vehicle to cause friction and drag to contribute to bring the vehicle to rest, the height of the non-crushable base increases, in direction of the traffic flow, in step-wise (92) or sloping fashion.
Patent CA-2011861-A1 (CA)
Inventor: NICOLA WILLIAM J JR
IPC: B05B7/00
Filed: 1990-03-09
Abstract: Mo3186 APPARATUS FOR THE DISTRIBUTION OF A FOAMABLE REACTION MIXTURE UPON A MOVING BASE                  ABSTRACT OF THE DISCLOSURE       The present invention is directed to an apparatus for the distribution of a foamable reaction mixture upon a moving base comprising:         a)  a mixing device having at least one inlet for receiving foam raw materials and an outlet for the foamable reaction mixture, b)  an elongated hollow, pipe-like applicator connected at one end to said outlet and at the other end to an air source, said applicator having a multiplicity of holes along the length thereof, said holes opening above said base, c)   means for transporting said mixture through said mixing device, into said applicator, and though said holes, d)   means for simultaneously passing air from said air source into said applicator and through said holes, and e)   means for simultaneously passing air through said outlet, into said applicator and through said holes.
Patent CA-2013835-A1 (CA)
Inventor: DONAHUE RAYMOND J
IPC: B22C9/10
Filed: 1990-04-04
Abstract: A method of producing salt cores for use in die casting.  A pattern, identically proportional in configuration to the salt core to be produced, is initially formed from an evaporable foam material.  The evaporable foam pattern is positioned in a mold and surrounded with an unbonded flowable material, such as sand.  The pattern is contacted with a molten salt and the high temperature of the salt will vaporize the pattern, with the vapor being captured within the interstices of the sand while the molten salt will fill the void created by vaporization of the foam to provide a salt core identical in configuration to the pattern.  The salt core is subsequently used in a high pressure die casting operation to cast a metal part.
Patent CA-2016455-A1 (CA)
Title: Flame retardant aromatic polycarbonate compositions
Inventor: LEWIS LARRY N
IPC: C08L69/00
Filed: 1990-05-10
Abstract: RD-18,919 FLAME RETARDANT AROMATIC POLYCARBONATE COMPOSITIONS                 Abstract of the Disclosure Flame retardant compression moldable aromatic thermoplastic polycarbonate compositions are provided capable of satisfying the UL-94 V-O requirements and substantially lowering the heat and smoke emitted during burning.  The aromatic thermoplastic polycarbonates utilize an aromatic polycarbonate resin in combination with an effective amount of a silicate resin having condensed triorganosiloxy units such as trimethylsiloxy units and diorganosiloxy units such as methylvinylsiloxy units.
Patent CA-2017715-A1 (CA)
Title: Photoinitiated adhesion process
Inventor: WEIGL STEFAN
IPC: C09J5/02
Filed: 1990-05-29
Abstract: ABSTRACT OF THE DISCLOSURE           The use of vinyl ethers or nitrile groups on additives to photoinitiated epoxy polymerization process allows for longer cure times during which the polymers can be positioned as an adhesive.
Patent CA-2019562-A1 (CA)
Title: Precision shaped masonry blocks
Inventor: VESELIN VUJACIC
IPC: E04B2/02
Filed: 1990-06-21
Abstract: ABSTRACT OF THE DISCLOSURE     Precision shaped masonry blocks, according to this invention introduce a number of blocks 4 placed one to  another on base P, forming walls 1,1',1",2,3. Blocks 4 are mutualy connected by means of element 10 inserted into rabbets 41. At the joint between walls 1,1',1",2,3 among blocks 4, the blocks 5 with opening 53 for vertical fastening zone casting are inserted, which is connected with blocks 4 by means of element 10 inserted into rabbets 51,41 of blocks 5,4. On the top of the wall of blocks 4, on the place where the massive slab with horizontal fastening zone is jointly cast in one part, connected by means of elements 10 and placed on blocks 4, the blocks 6 are faced with their extensions 61 towards the external side of the wall 1. On blocks 4 by means of element 10 inserted into rabbets 41,75,76, the blocks 7 are placed on places where horizontal fastening zone, or lintel girder are to be performed, while at the joint between two horizontal and vertical fastening zones, on blocks 4, the blocks 8 are centred by elements 10, in relation to blocks 4,5. At the joints of two external walls, e g. 1,2 on the top, the blocks 9 are placed above opening 53 and gripped between sides 72 of neighbouring blocks 7 by means of bulge 93.
Patent CA-2020282-A1 (CA)
Title: Bande ou portion de bande pour emboutissage ou emboutissage-etirage, et son utilisation
IPC: B65D83/14
Filed: 1990-07-03
Abstract: Bande ou portion de bande pour emboutissage ou emboutissage-étirage, et son utilisation.  Une telle bande ou portion de bande inclut une couche métallique portant sur une face une couche superficielle de matière plastique et sur son autre face une couche de vernis.   La couche métallique est en alliage Al avec sur chaque face une couche d'oxyde anodique ou de conversion chimique d'épaisseur 20 à 80.  La couche de vernis contient un lubrifiant solide en particules plus dures que le vernis et moins dures que le ou les outillages de conformation, de diamètre moyen supérieur a l'épaisseur de ladite couche après cuisson.  L'invention a aussi pour objet l'utilisation de cette bande pour fabriquer divers corps  creux  ou  récipients,  en  particulier  de  rapport hauteur/diamètre supérieur à 2,5,  et pour fabriquer des distributeurs d'aérosol ou à pompe.  La bande de l'invention ainsi transformée s'applique à des domaines variés tels que ceux des  produits  d'entretien,  d'hygiène,  alimentaires, cosmétologiques, pharmaceutiques.
Patent CA-2021972-A1 (CA)
Title: Process for the preparation of nylon salts
Inventor: STUDHOLME MATTHEW B
IPC: C07C211/12
Filed: 1990-07-25
Abstract: ABSTRACT OF THE DISCLOSURE          PROCESS FOR THE PREPARATION OF NYLON SALTS      This invention relates to a process for producing nylon salts from hot aqueous solutions thereof by cooling said solutions under controlled conditions.     The process does not use any organic solvents and hence the salts are easily filtered and dried.
Patent CA-2022413-A1 (CA)
Title: Apparatus for monitoring degradation of insulation of electrical installation
Inventor: SAIGO AKIRA
IPC: G01R31/12
Filed: 1990-07-31
Abstract: ABSTRACT OF THE DISCLOSURE    According to the invention, there is provided an apparatus for monitoring degradation of insulation of an electrical installation that can constantly monitor its electric equipments and cables for degradation of insula-tion under hot-line conditions.  Said apparatus comprises:     a first sensor for detecting a progressive wave generated by a partial discharge taking place at a loca-tion where the insulation is degraded in the power trans-mission paths:     a second sensor for detecting the phase of said generated progressive wave as well as external noise;     a third sensor for detecting a reference signal for determining the direction of said progressive wave: and a measurement section for processing the signals from the first sensor, second sensor and third sensor:     wherein said measurement section determines existence or non-existence of degraded insulation by comparing the phases of the signals from the first sensor and the third sensor when it detects a progressive wave generated at a location where degradation of insulation of an electric cable or an electric equipment is taking place. and it also determines if the signal from each of the second sensor represents an external noise or degraded insulation and detects the phase of degradation if degraded insula-tion is involved.
Patent CA-2024440-A1 (CA)
Title: Dimmer control circuit
Inventor: SZUBA STEFAN F
IPC: H05B41/36
Filed: 1990-08-31
Abstract: A control circuit for a dimmer which receives all of its operating power through the control terminals from the dimmer of the fluorescent lamp to which said dimmer is connected.
Patent CA-2024511-A1 (CA)
Title: Liquid-tight closure assembly with multidirectional orientation and retractible power tube
Inventor: ODET PHILIPPE
IPC: B65D47/06
Filed: 1990-01-22
Abstract: Liquid-tight closure assembly with pourer tube, for a container (100), comprising a neck (101) of which the external face has a threading (103) comprised of a closure plug (110), a pourer tube (140) shaped as bellows and retractible in the neck and pressed against the internal face of the plug (110), characterized in that it is also comprised of an intermediary annular U-shaped element (120) defining two branches, respectively an internal branch (121) and an external branch (122) intended to span the essential portion of the neck (101): the external face of the internal branch (123) being configured like the essential portion of the internal face (102) of the neck; the lower end (124) of the internal branch (121) presenting a shoulder (125) against which bears the lower end (145) of the bellows (140). Application to oil cans.
Patent CA-2025434-A1 (CA)
Inventor: CORBIN JOHN R
IPC: G06F21/12
Filed: 1990-09-14
Abstract: The present invention provides to the software application the verification and license check out functions which are normally performed by a license server. The encrypted license information is contained in a license token, and is stored in the database controlled by the license server. In contrast to the prior art where the license server either grants or denies the request after verifying the user's credentials, the license server in the preferred embodiment of the present invention finds the correct license token for the software application and transmits the license token to the licensing library. The license access module attached to the application decodes the licensing token. Routines in the licensing library coupled to the software application verify the license information before checking out the license and updating the license token. The license access module then encodes the updated license token before returning it to the license server. Because the verification and check out function of a license token are performed by a software application, the software application rather than the license server becomes the point of attack by unauthorized users. Reverse engineering the license access module is less rewarding than attacking the license server because the license access module reveals the contents of a small fraction of a database of licenses.
Patent CA-2028149-A1 (CA)
Title: Higher -olefin copolymer, process for preparing same, vulcanization product therefor and vulcanizable rubber composition
Inventor: KAWASAKI MASAAKI
IPC: C08F4/658
Filed: 1990-04-24
Abstract: A higher  alpha -olefin copolymer comprising a C6 to C12  alpha -olefin and a nonconjugated diene of general formula (I), wherein the content of the nonconjugated diene ranges from 0.01 to 30 mole % and the limiting viscosity ( eta ) of the copolymer ranges from 1.0 to 10.0 dl/g when measured at 135 DEG C in decalin, wherein R<1> represents C1 to C4 alkyl, and R<2> and R<3> represent each hydrogen or C1 to C4 alkyl except the case where both of R<2> and R<3> are hydrogen atoms at the same time. The invention further provides a vulcanizable rubber composition comprising a rubber composed of the higher  alpha -olefin copolymer and a specified diene rubber or a specified ethylene- alpha -olefin copolymer rubber.
Patent CA-2030118-A1 (CA)
Inventor: BEAUDOIN NORMAND
IPC: F01C1/44
Filed: 1990-11-16
Abstract: MACHINE ENERGETIQUE A PISTONS-CULBUTEURS La présente invention a pour but d'améliorer les machines et moteurs énergétiques dont je suis l'inventeur portant les numéros de brevet 1229749 et de demande 601713 en remplacant le piston et la pale de ceux-ci par des pistons-culbuteurs, chacun d'eux reliés d'une part par une tige du noyau de la turbine de la machine et d'autre part entre eux par le moyen d'une bielle, de manière à ce que chaque pointe du pistonculbuteur, à travers la rotation de la turbine, touche toujours au cylindre de la machine, ce qui a pour but d'annuler la friction de ceux-ci, d'une part, et d'autre part de manière à produire une chambre à combustion dont la forme est beaucoup plus favorable au torque.
Patent CA-2030515-A1 (CA)
Title: Elastomeric propylene copolymers and process for manufacturing them in gas phase
Inventor: BAILLY JEAN-CLAUDE A
IPC: C08F/
Filed: 1990-07-12
Abstract: ABSTRACT OF THE DISCLOSURE            Novel elastomeric copolymers of propylene with ethylene and/or 1-butene and optionally one or more alpha-olefins containing from 5 to 12 carbon atoms are prepared using a catalyst system that is highly active and stereospecific.  A prepolymer is first prepared in the presence of a particular catalyst of the Ziegler Natta type that has a support based on magnesium dichloride.  In a second stage gas phase copolymerization the prepolymer is contacted with a mixture comprising propylene, ethylene and/or 1-butene and optionally an alpha-olefin containing from 5 to 12 carbon atoms, propylene constituting from 20 to 80% of the total volume of the olefins to be copolymerized.
Patent CA-2032000-A1 (CA)
Title: Electrolytic gas generator incorporating a stack of vertical frames
Inventor: SIGNORINI LIDO
IPC: C25B9/00
Filed: 1990-12-11
Abstract: Electrolyser for the production of a gas, comprising a stack of vertical frames (1, 2) defining electrolysis chambers (4, 5), a degassing chamber (17) above the stack, a conduit for allowing electrolyte to enter (23) the degassing chamber, a vertical pipe (18) connecting the degassing chamber to the lower part of the electrolysis chambers and a nozzle (20) arranged around the pipe and connecting the degassing chamber to the upper part of the electrolysis chambers, the pipe (18) communicating with the degassing chamber (17) through a connecting conduit (19, 21) passing through the nozzle (20).
Patent CA-2033806-A1 (CA)
Title: Tubular footing form for building foundation piles of concrete
Inventor: VISCONTI ROBERTO
IPC: E21B33/13
Filed: 1991-01-08
Abstract: "TUBULAR  FOOTING  FORM FOR BUILDING FOUNDATION PILES  OF CONCRETE"                         Abstract A  tubular footing form of the recoverable type  for building  concrete  foundation  piles  comprises  an  end shutting  organ destined to prevent water from the  water bed  from entering the footing form while the  latter  is being  plunged into the ground and to enable the concrete casting  to be performed during the step of  recovery  of the same footing form.     According to the invention,  said end shutting organ is installed inside the tubular footing form at a certain distance from its free end so as to create a seal chamber which,  during  the step of plunging of the footing form, gets  filled  with compacted earth,  which forms  a  plug which  tightly  seals  the  shutting  organ  against  the entering of water from the water bed.
Patent CA-2036283-A1 (CA)
Title: Effervescent composition, its production and use
Inventor: KONDO SADAO
IPC: A61K9/46
Filed: 1991-02-13
Abstract: The present invention provides a water-soluble effervescent composition prepared by hot-melting (i) an active component and (ii) an acid and a carbonate for effervescing, both in powdery or granular state, with (iii) a water-soluble adjuvant whose melting point is not lower than 40 DEG C, for addition to drinking water.
Patent CA-2038259-A1 (CA)
Title: Processes and intermediates for the preparation of 5-oxygenated hmg-c0a reductase inhibitors
Inventor: ANDERSON ROBERT K
IPC: C07F7/18
Filed: 1991-03-14
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention is directed to a com-pound of structural formula (3):                           (3) which are intermediates useful for the preparation of 5-oxygenated derivatives of lovastatin and analogs at the 8-acyl side chain and 6-position of the polyhydro-naphtyl ring.  Said derivatives of lovastatin and analogs thereof are useful for the treatment of hyper-cholesterolemia.
Patent CA-2041457-A1 (CA)
Inventor: ST LOUIS DANIEL M
IPC: B23H9/00
Filed: 1991-04-29
Abstract: A spark disintegrator tube cutter comprises a housing having a shaft with armature rotatably mounted in the housing. A conductive base which is electrically connected to a post accessible from outside the housing, carries a carbon brush against which the armature slides. The post is used to supply electricity to the shaft. A flexible shaft extension is connected to the shaft and carries a cutting electrode which extends radially outwardly from an end of the shaft. A spacer which is engaged around at least part of the shaft extension on an opposite side from the cutting electrode, and urges the cutting electrode against the inner circumferential surface of the tube to be cut. A pneumatic motor mounted to the housing and connected to the shaft, rotates the shaft. With do current passing through the cutting electrode, an arc is formed as the electrode slides in continuous contact around the inner circumference of the tube, for cutting the tube.
Patent CA-2042637-A1 (CA)
Title: Captive cable coil and its application to a regulator for deploying a lengthening piece of a space instrument
Inventor: HENRY JEAN-PIERRE
IPC: B64G1/44
Filed: 1991-05-15
Abstract: ABSTRACT OF THE DISCLOSURE So  as  to adjust  the deployment  of a  lengthening piece  of a space instrument, a  captive cable coil (34) coupled to  a centrifugal brake by a speed multiplier is used. The  cable (40) is wound onto the coil (34) in the form  of   a  single  strand  imprisoned  in  a  roughly helical-shaped  throat   (38)  formed,  for  example  by machining,  on the outer surface of  the coil. One outer portion  (42a) of the partition separating two adjacent spires  of the throat is  folded down onto the  cable so as to prevent its volume from swelling.     Fig. 2 SP 6158.69 GP
Patent CA-2045242-A1 (CA)
Title: Sunroof and method of installing same
Inventor: RAAP DANIEL L
IPC: E04D13/03
Filed: 1991-06-21
Abstract: Components for a multiple window unit sunroof are pre-assembled at the factory and include a support frame having vertical beam members which have water weep channels on their top faces for routing away from the sunroof moisture entering under the glazing panel adjacent side edges which overlap the drain channel.  The support frame is snugly received in a boot.          Removable locator jigs are attached to the perimeter frame of the glazing panels to position them and hold them while mounting flanges are being installed.
Patent CA-2048082-A1 (CA)
Title: Long period pendulum damping equipment
IPC: E04B1/98
Filed: 1991-07-29
Abstract: A long period pendulum damping equipment having right and left pair of longer rods, right and left pair of shorter rods and a tie beam connecting these longer rods and shorter rods one another, in which a tilt angle interlocking means of both rods installed at right and left end portions of the tie beam, respectively, and keeping the tilt angle in one direction of the longer rod with respect to a vertical line always equal to the tilt angle in another direction of the shorter rod or certain ratio times thereof is provided, and a long period is provided and an installation space is made small while making the overall height low by pivoting a weight to either one of the longer or shorter rod.
Patent CA-2048889-A1 (CA)
Title: Pendulum vehicle
Inventor: KOBAYASHI NOBORU
IPC: B61F5/22
Filed: 1991-08-09
Abstract: ABSTRACT    A pendulum vehicle comprising: a vehicle body; a plurality of trucks each having a truck frame provided below the vehicle body; and a pair of transversely ar-ranged resilient members provided on the truck frame for supporting the vehicle body; wherein axes of the resil-ient members tilt so as to approach each other, and an uncouple point of the vehicle is positioned higher than center of gravity of the vehicle body.  The uncouple point is defined as a point where the vehicle body does not tilt but moves only horizontally in case that trans-verse load is applied to the point on the vehicle.  By virtue of the simple structure of the pendulum vehicle according to the present invention, maintenance work are simplified.  Further, stationary transverse acceleration felt by passengers when passing through curves can be reduced to achieve comfortable drive.
Patent CA-2049128-A1 (CA)
Inventor: RIEHL TILFORD F JR
IPC: C09B61/00
Filed: 1991-08-13
Abstract: A coating for a cigarette wrapper and a cigarette utilizing  said wrapper wherein the dye comprises a solvent system, cocoa powder as the pigment, a dispersant to disperse the pigment, and a binder to bond the pigment to the paper when the dye is dry.
Patent CA-2049525-A1 (CA)
Title: Vehicle traction
Inventor: BARNARD JAN H
IPC: B62D55/253
Filed: 1991-08-20
Abstract: A B S T R A C T            An endless track member for a track laying vehicle has separate, transversely orientated, track elements, and at least one elongate core element holding the track elements abuttingly together, bead fashion. Each track element has, at opposed sides, abutting formations abutting corresponding formations of adjacent track elements, such as to allow relative pivoting of adjacent track elements about lateral pivot axes, outer checking formations to abut corresponding formations of adjacent track elements to limit the radius of curvature a portion of the track can assume without deformation to a predetermined maximum value, and inner checking formations to abut corresponding formations of adjacent track elements to limit the radius of curvature a portion of the track number can assume without deformation to a predetermined minimum value commensurate with the diameter of wheels over which the track member runs.   Each track element includes a seat for each core element at a level corresponding to the level of said lateral pivot axes.