baber/WOPTO huggingface dataset:
Patent WO-0128757-A1 (WO)
Title: Differential weld bead geometry
Inventor: BROOKS MICHAEL ANTHONY
IPC: B29C65/00
Filed: 2000-10-19
Abstract: The invention involves a method of vibration welding thermoplastic surfaces together by using specially formed weld beads. In a disclosed embodiment of this invention, a plastic surface has at least one weld bead (20) with an outermost portion (30) smaller than the base of the weld bead. Due to the smaller width of the outermost portion, greater pressure is brought to bear on the point of surface contact during vibration welding than by using uniform and conventional flat faced weld beads. Moreover, a smaller load of frictional heat is required to commence the welding process given the smaller point of contact.
Patent WO-02097498-A1 (WO)
Title: Dispositif optique de multiplexage par repartition en longueur d'onde a polarisation compensee
Inventor: CHEBEN PAVEL
IPC: G02B6/126
Filed: 2002-05-28
Abstract: La présente invention concerne un procédé permettant la compensation de polarisation dans un dispositif optique et le dispositif correspondant, deux zones de compensation prismatiques asymétriques se trouvant dans des éléments de couplage d'entrée et de sortie du dispositif.
Patent WO-03083215-A1 (WO)
Title: Ameliorations se rapportant a la securite des pistes et voies de circulation d'aeroports
Inventor: PREVOST JEAN
IPC: B64F1/36
Filed: 2003-04-03
Abstract: L'invention concerne des améliorations se rapportant à la sécurité des pistes et voies de circulation d'aéroports, apportées grâce à la mise en place d'un matériau de revêtement (14) souple imperméable à l'eau sur un support de terre compactée jouxtant directement un bord d'accotements de pistes d'aterrissage (12). Une surface de gazon synthétique (30) est aménagée sur l'aire située au-delà du matériau de revêtement (14), de sorte que des corps étrangers, tels que des particules éparses des matériaux d'accotement des pistes d'aterrissage, soient projetées par le souffle des réacteurs à travers la texture relativement lisse du matériau de revêtement (14) et piégées par le gazon synthétique (30), ce qui réduit au minimum les dommages pouvant être causés par des corps étrangers aux moteurs d'avion, en particulier les moteurs en porte-à-faux qui débordent largement les accotements des pistes et voies de circulation.
Patent WO-2004026498-A1 (WO)
Title: Procede et appareil de stratification pour metaux alcalins ou pour alliages de ces metaux
Inventor: LALIBERTE RICHARD
IPC: H01M4/13
Filed: 2003-09-18
Abstract: Cette invention se rapporte à un appareil et à un procédé servant à fabriquer des anodes en lithium ou en alliage de lithium pour des piles électrochimiques, au moyen d'une technique de stratification dans laquelle une feuille de lithium ou d'alliage de lithium est réduite en mince film de lithium ou d'alliage de lithium. Ce procédé et cet appareil permettent de régler le profil défini par les surfaces de contact d'une paire de cylindres de travail en vue de compenser la dilatation thermique des cylindres de travail ou les irrégularités d'épaisseur de la feuille de lithium ou d'alliage de lithium, ce qui permet de maîtriser la forme et le profil du film de lithium ou d'alliage de lithium en cours de stratification.
Patent CA-2002219-A1 (CA)
Title: Dryer sheet fabric conditioner containing fluorescent whitening agent and method for its preparation
Inventor: DELL ARMO LISA A
IPC: C11D3/00
Filed: 1989-11-03
Abstract: ABSTRACT OF THE DISCLOSURE        Compositions and processes for coating a flexible subs-trate for subsequent use in a mechanical tumble clothes dryer are disclosed.  The compositions incorporating fluorescent whitening agents impart improved whiteness to clothes treated in the dryer and the process provides a substantially safe and easy method for incorporating the fluorescent whitening agent into the coating composition.
Patent CA-2004466-A1 (CA)
Title: Ladder stabilizer
Inventor: LEVI AVRAHAM Y
IPC: E06C7/42
Filed: 1989-12-01
Abstract: LADDER STABILIZER                 ABSTRACT OF THE DISCLOSURE      Stabilizer apparatus for attachment to an extension ladder for inhibiting sideways tipping and downward/rearward slipping thereof.  Attached to the opposed side rails of the ladder proximate the upper end of the lowermost section are hinge blocks for pivotally joining a pair of tubular, telescoping, extensible legs to the ladder.  The hinge brackets are specially designed to permit the tubular legs to be swung parallel to and directly adjacent with the ladder's side rails when the ladder is to be stowed and which the legs to be rotated laterally outward and forward of the base of the ladder during use.  An articulated brace extends between the pair of legs and their associated ladder side rails to limit the extent to which the legs may be splayed relative to the ladder.
Patent CA-2004691-A1 (CA)
Inventor: GERVASI VITO
IPC: B23Q17/22
Filed: 1989-12-06
Abstract: CUTTING TOOL     Abstract of the Invention A cutting tool for  a planer or similar machine is described.   The tool comprises a flat blade having a straight cutting edge, a blade holder for holding said blade for rotation about an axis and means for locating said blade on said holder to have said blade present one cutting angle at one axial end and a different cutting angle at an opposite axial end, and to have the two opposite axial ends of the cutting edge of the blade located substantially at the same distance from the axis of rotation of the blade holder.
Patent CA-2005948-A1 (CA)
Title: Water sheeting zwitterionomeric aminofunctional siloxanes
Inventor: HALLORAN DANIEL J
IPC: C09G1/00
Filed: 1989-12-19
Abstract: A polish formulation containing as components at least one member selected from the group consisting of waxes, solvents, surfactants, thickening agents, abrasives, dyes, odorants and other ingredients normally used in making polishes and as an improvement incorporating a composition which is the reaction product of an acid anhydride and an aminofunctional siloxane.  The resulting zwitterionic aminofunctional siloxane can, if desired, be further reacted with a strong acid to provide an equilibrium of the zwitterion and a conjugate acid base pair of the zwitterion and the acid.  The invention also includes a method of sheeting water on a surface with the polish, a method of making an aminofunctional siloxane zwitterionomer and an aminofunctional zwitterionomeric siloxane compound which is the reaction product.
Patent CA-2007708-A1 (CA)
Title: Dispositif de fixation des tambours de fraisage sur un appareil destine a creuser des tranchees dans le sol
Inventor: DETILLEUX JEAN-CLAUDE
IPC: E02F3/24
Filed: 1990-01-12
Abstract: A B R E G E Société Anonyme dite : SOLETANCHE Dispositif de fixation des tambours de fraisage sur un appareil destiné à creuser des tranchées dans le sol. L'invention est relative à un dispositif de fixation des tambours de fraisage sur un appareil destiné à creuser des tranchées dans le sol. Le dispositif moteur comporte un plateau tournant (4) disposé perpendiculairement à son axe et à l'extrémité de celui-ci, plateau qui présente sur sa périphérie une forme polygonale convexe (9) alors que le tambour de fraisage (8) est muni d'une partie (8a) comportant un évidement central de forme polygonale concave (10) correspondant à la forme polygonale convexe (9) du plateau (4) et de dimensions légèrement supérieures, des organes de maintien (11) réunissant le tambour de fraisage (8) audit plateau (4) de manière telle que l'entraînement en rotation du tambour de fraisage (8) par le plateau (4) s'effectue par l'intermédiaire des surfaces polygonales précitées (9,10) qui viennent s'engager l'une contre l'autre.
Patent CA-2009015-A1 (CA)
Title: Cam modulator for anti-lock braking system apparatus and method
Inventor: FABRIS ALROY G
IPC: B60T8/40
Filed: 1990-01-31
Abstract: CAM MODULATOR FOR ANTI-LOCK BRAKING SYSTEM            APPARATUS AND METHOD          Abstract of the Disclosure:          An anti-lock braking system system (ABS) pressure modulator is provided.  The modulator includes a frame with a central bore fluidly exposed to a solenoid valve and to a vehicle wheel cylinder.  A piston is slidably mounted within the central bore having a contact surface and a first predetermined position within the bore.  A power means is actuated by a controller.  A cam, moved by the power means, has a ramp surface in contact with the piston contact surface.  The position of the piston within the wheel cylinder is determined by the position of the cam.
Patent CA-2012948-A1 (CA)
Title: Aqueous coating compositions
Inventor: CAREY JOHN G
IPC: C08G18/08
Filed: 1990-03-23
Abstract: An aqueous selfcrosslinkable coating composition which comprises an aqueous dispersion of at least one polymer having chain-pendant amine groups and certain selected non-polymeric ketone-containing compounds, particularly acetoacetates and acetoacetamides, whereby selfcrosslinking is effected, often at ambient or low temperatures, during and/or after film formation.
Patent CA-2013694-A1 (CA)
Title: Particle concentrator
Inventor: PACE DAN R DR
IPC: B04B1/08
Filed: 1990-04-03
Abstract: ABSTRACT     Means are disclosed for mounting the upper and lower bowl members on a common linear cylindrical member and for separately controlling gas pressure within the centrifuge housing in a low speed decanting centrifuge for  separating  relatively  large particulate material (e.g. yeast)  from a feedstock.   The centrifuge may be clamped to a container and a pressure differential is created between the centrifuge housing and the container to, in turn, force feedstock upwardly into the lower bowl of the centrifuge.  A stack of frustoconical discs carry supernatant downwardly and inwardly for vertical transfer to  a  discharge  chamber.     Particulate  matter is centrifugally discharged continuously between engageable surfaces of the lower bowl member and the upper bowl member.   The  invention provides  for means  isolating hydraulic forces generated within the bowl from thrust bearing means supporting the bowl and for transferring drive forces to the intake means.  The invention provides further for optional means separately collecting and controlling discharge from the centrifuge housing whereby gas pressure within the housing may be increased further to partially counterbalance hydrostatic forces within the bowls  thus  permitting  bowl  members  of  low material strength to be used in relatively high speed separation as a means of improving processing capacity.
Patent CA-2016222-A1 (CA)
Inventor: OVERFIELD ROBERT E
IPC: G01N30/46
Filed: 1990-05-07
Abstract: A sample of a hydrocarbon oil containing asphaltenes is chromatographically analyzed by forming a mixture of the oil with a weak solvent. The mixture is passed in contact with a column of a stationary phase of fine solid particles of fully functionalized material, followed by a weak solvent. The solvent, after recovery from, the column, is analyzed for aromatics by UV-absorption of UV radiation in the range 200 to 400 nm. The absorbance of the UV light by the irradiated eluents across the UV wavelength range is monitored and the integral of absorbance is derived as a function of photon energy across the wavelength range. The magnitude of the derived integral in at least one time interval corresponding with aromatics in the eluent from the stationary phase is measured as an indication of the level of aromatics in the oil sample.      The weak solvent may be followed by a strong solvent which, in turn, may be followed by a strong solvent which is modified by the addition of a hydrogen bonding solvent. The solvents are analyzed for saturates, aromatics, polar compounds and any asphaltenic materials by the combination of the UV-absorption measurement and a mass sensitive measurement which measures the combined level of the saturates, aromatics, polars and any asphaltenic compounds present. Equipment to perform the foregoing analysis is also described. The analysis can be used for evaluation of are oil and/or for on-line regulation of an oil refining process.
Patent CA-2018516-A1 (CA)
Inventor: ANDERSEN CARL W
IPC: B29C70/34
Filed: 1990-06-07
Abstract: ABSTRACT OF THE DISCLOSURE           A method for making acoustic cover panels for portable room partitions and the like of the type having a freestanding frame with at least one acoustic cover panel connected with and enclosing an associated side of the frame, said method comprising:           providing a sound absorbing backing material having heat fusible fibers; cutting a backing sheet from the backing material to a predetermined shape with a marginal edge;           providing an upholstery material having a finished exterior surface;           cutting an upholstery sheet from the upholstery material to a predetermined shape with a marginal edge and a size commensurate with the backing sheet;           assembling the backing sheet and the upholstery sheet by positioning an interior side of the upholstery sheet on an exterior side of the backing sheet, and indexing the same such that the marginal edges of the upholstery sheet and the backing sheet assume a generally aligned relationship, and collectively define a composite sheet with a marginal edge;           heating the composite sheet to soften the heat fusible fibers in the backing sheets;       forming the heated composite sheet by creasing outer portions of the composite sheet along predetermined crease lines spaced inwardly from the marginal edge of the composite sheet to form integral flanges which are bent inelastically inwardly from the crease lines at a selected angle to the remaining generally planar portion of the composite sheet to create a one-piece frameless molded cover panel with a predetermined geometrically solid shape adapted to mate with and cover one side of the panel frame; cooling the composite sheet while in the predetermined geometrically solid shape, such that the composite sheet permanently assumes the predetermined geometrically solid shape, so as to stiffen and rigidify the one-piece, frameless cover panel to a degree which facilitates manual handling of the same and attachment to the panel frame.
Patent CA-2019577-A1 (CA)
Title: Imidazo [2,1-b]thiazole compounds and anti-ulcer compositions containing the same
Inventor: SEKI TAKETSUGU
IPC: C07D513/04
Filed: 1990-06-21
Abstract: ABSTRACT OF THE DISCLOSURE The present invention relates to imidazo[2,1-b]thiazole compounds represented by formula  (I) and pharmacologically acceptable salts thereof:                                 (I) wherein R1 and R2 may be the same or different groups and each represents a hydrogen atom or a lower alkyl group having 1 to 6 carbon atoms; R3 represents a hydrogen atom, a lower alkyl group having 1 to 6 carbon atoms or a phenyl group which may be optionally substituted by methyl  group,  methoxy group or halogen; and R4 represents a hydrogen atom or a lower alkyl group having 1 to 3 carbon atoms, with the proviso that when R3 represents a hydrogen atom, at least one of R1 and R2 represents a lower alkyl group having 1 to 6 carbon atoms, and antiulcer agents comprising said compounds or salts thereof as the active ingredient.
Patent CA-2020433-A1 (CA)
Inventor: HARADA KOSUKE
IPC: H02M3/28
Filed: 1990-07-04
Abstract: The disclosed power source means comprises a direct current (DC) source connected to the primary side of a transformer through a main switching element, a shunt circuit connected in parallel to the main switching element which shunt circuit being a serial circuit having an auxiliary switching element and a capacitor, and a control circuit connected to the main switching element so as to operate the main switching element at a duty ratio for generating a pulse-width-modulated output voltage at the secondary-side of the transformer depending on the duty ratio.  The control circuit is also connected to the auxiliary switching element so as to turn off the auxiliary switching element when the main switching element is closed and to turn on the auxiliary switching element when the main switching element is open.  The auxiliary switching element and the capacitor in the shunt circuit are such that the shunt circuit has a small impedance at low switching frequencies of the main switching element.
Patent CA-2020629-A1 (CA)
Inventor: LANDY FRANK
IPC: C04B41/48
Filed: 1990-07-06
Abstract: A shelf-stable fast-cure aqueous coating is disclosed. The coating contains an anionically stabilized latex, a polyfunctional amine and a volatile base in an amount sufficient to deprotonate the conjugate acid of the amine.
Patent CA-2021462-A1 (CA)
Title: Internal disc brake
Inventor: CRAWFORD PAUL A
IPC: F16D55/30
Filed: 1990-07-18
Abstract: A gear drive unit with an internal disc brake is disclosed.      The brake disc is mounted for non-rotatable movement on a driven shaft in a housing of the drive unit. The housing has internal pockets for holding brake pucks at sides of the brake disc. An actuating member mounted in the housing moves one puck toward the disc when the member is rotated in a pre-selected direction.   An adjustable spacer is located on the opposite side of the other brake puck and positions and backs up that puck adjacent the other side of the brake disc. The adjustment can be made outside the housing without the use of special tools. The internal brake has fewer parts, is easier to assemble, is not contaminated by dirt, leaves, and grass clippings, and the like, is not subject to damage, and does not present a possible source of injury to an operator or a child.
Patent CA-2022427-A1 (CA)
Title: Process and apparatus for coating a substrate
Inventor: FAUST HORST
IPC: B05B5/08
Filed: 1990-08-01
Abstract: Abstract of the Disclosure An apparatus for coating a substrate with a liquid  resist  film  which  includes  vaporizable solvent components and solid components wherein the apparatus  includes  a  high-voltage  source  for generating an electrostatic discharge in an aerosol, which is sprayed onto the substrate connected to the high-voltage source, as well as a dryer,  through which the substrate passes, an ultrasonic generator, which  is  likewise connected to the high-voltage source and is in connection with an aerosol circuit. A coating solution is introduced into the aerosol circuit. The ultrasonic generator forms a unit with an atomizing space, and the drops of the coating solution are finely distributed into the latter. A fan  is  connected  to  the  atomizing  space  and generates an air stream or gas stream, which forms with the drops of the coating solution, generated by the ultrasonic generator, the aerosol, which flows into  a  vaporization  chamber.  The  vaporization chamber goes over into a fishtail  die   past which the substrate is   vertically   advanced. The dryer is arranged downstream of the fishtail die   in the advancing direction A of the substrate.
Patent CA-2025199-A1 (CA)
Inventor: CUMMINGS DAVID H
IPC: H01R4/02
Filed: 1990-09-12
Abstract: The stator is made of laminated stampings having congruent outlines defining the central opening for a rotor and also defining pole pieces which include horn-like portions spaced from the main body of the stamping to define winding slots for the coil.  Each end of the assembly has a terminal board which has an outline generally congruent with the laminations.  Two terminals are mounted in the supports carried by the terminal board adjacent each pole piece.  The ends of the wire of each coil are led across the adjacent terminal, then back between the terminal and a tang formed from the terminal,  Then the tang is pressed against the terminal and wire and fused to complete the connection.
Patent CA-2027715-A1 (CA)
Title: 3-aryloxazolidinone derivatives process for their preparation and their use in therapy
Inventor: JARREAU FRANCOIS-XAVIER
IPC: A61P25/26
Filed: 1990-10-16
Abstract: ABSTRACT            The derivatives of the formula :       (I) wherein : -   R1 is H or C1-C4 alkyl ; -   X is an oxygen atom, a methylene group or a -CH=CH-group ; -   n is 1 or 2 when X is an oxygen atom or a methylene group and 0 or 1 when X is a -CH=CH- group ; -   D is an oxygen atom or a NOR group, wherein R = H or C1-C4 alkyl ; -   R3 is a C1-C4 alkyl, C3-C7 cycloalkyl, phenyl or benzyl group ; -   each of R2 and R'2 independently is a hydrogen atom or a C1-C4 alkyl, C3-C7 cycloalkyl, phenyl or benzyl group ; and -   R'2 and R3 may further form together a -(CH2)3- or -(CH2)4-chain, useful as drugs.
Patent CA-2029516-A1 (CA)
Inventor: HALLORAN DANIEL J
IPC: A61K8/892
Filed: 1990-11-07
Abstract: The use of siloxanes for conditioning of hair is disclosed. They hold particular usefulness as substitutes for oxidizing agents in the hair waving process.  A novel polymeric composition which comprises a silanol endblocked polydiorganosiloxane, cyclic siloxanes, a chlorobenzyl-functional siloxane and a catalyst is also disclosed.
Patent CA-2030587-A1 (CA)
Inventor: GRIER-IDRIS CARLETTA
IPC: A61B19/08
Filed: 1990-11-23
Abstract: ABSTRACT OF THE DISCLOSURE      Disclosed herein is an incise system for surgical drapes and the resultant surgical drape.  The incise system is a two layer structure including a first layer of incise with an adhesive bottom surface for adhering the layer to a surgical drape and/or the skin of a patient.  The first layer of incise further defines a fenestrated area removably attached to the remainder of the first layer by a line of perforations.  The second layer of incise is generally coextensive with and releasably attachable to the first layer of incise so as to cover the fenestrated area of the first layer.     To use the incise system of the present invention the two layer structure is applied to the patient's skin such that the fenestrated  area  of  the  first  layer  of  incise directly overlies the intended incision area.  An incision can then be made directly through the two layers of incise.   Once the procedure is completed, the top (second) layer of incise is peeled from the bottom (first) layer.  In so doing, the top layer also removes the perforated fenestration area from the first layer thereby exposing a portion of the patient's skin surrounding the incision.   As a result,  suturing of the incision is made easier since it is no longer necessary to pick and peel the incise away from the incision to expose sufficient skin to allow suturing without catching the incise in the process.
Patent CA-2032043-A1 (CA)
Title: Bilevel current limiter
Inventor: WONG STEPHEN L
IPC: H05B39/02
Filed: 1990-12-12
Abstract: PHA.21564                                    27-11-1990 ABSTRACT: Bilevel current limiter.           A bilevel current limiting control circuit which enables a semiconductor controlled power switch with a limited power handling capability to operate near the inside border of the safe operating area (SOA) characteristic of the power switch. The control circuit is especially useful in limiting the turn-on inrush surge current to an incandescent lamp load supplied via the semiconductor power switch. The control circuit includes a series circuit made up of the power switch, a current sensing resistor and a lamp load connected to the terminals of a source of supply voltage. First and second comparison circuits, arranged to provide first and second different current limits for the control circuit, are connected to the sensing resistor. A third comparison circuit compares the load voltage with a reference voltage to control a selector device that selects the output of the first or second comparison circuit as a function of the level of the load voltage. The output of the selected comparison circuit is applied via a feedback circuit to a control electrode of the power switch so as to control the load current to the first and second current limit values as selected in response to the load voltage.