baber/WOPTO huggingface dataset:
Patent BG-49756-A1 (BG)
Title: Method for preparing of cyclododecane
Inventor: BEZUKHANOVA TSVETANA P
IPC: C07C13/273
Filed: 1990-01-09
Abstract: This method is used in the chemical industry for the synthesis of polymer products, polyamide 12 in particular. It ensures the complete hydrogenation of the initial 1,5,9-cyclododecatrien at relatively mild conditions. According to this method, 1,5,9-cyclododecatrien is dissolved in dry n-hexane prior to passing through a nickel-chromium catalyst containing 50 percent nickel and 30 percent chromium, at a temperature between 70 and 160 degrees C in a flow of hydrogen under pressure.
Patent WO-03095127-A1 (WO)
Title: Procede de fabrication d'une roue, roue et disque de roue
Inventor: FRANCISCHETTI EVANDRO LUIS
IPC: B21D53/26
Filed: 2003-04-28
Abstract: Cette invention se rapporte à un procédé de fabrication d'une roue (1), notamment pour son utilisation sur des véhicules automobiles, cette roue (1) comprenant une jante de roue (2) et un disque de roue (3) pouvant être associés l'un à l'autre. Ce procédé comprend les étapes suivantes : (i) une étape consistant à façonner le disque de roue (2) ; (ii) une étape consistant à façonner la jante de roue (2) ; les étapes (i) et (ii) pouvant être réalisées simultanément ou non ; (iii) une étape consistant à associer au moins un premier élément de centrage (4) contenu dans le disque de roue (3) et au moins un second élément de centrage (5) contenu dans la jante de roue (2) ; et (iv) une étape finale consistant à associer le disque (3) et la jante de roue (2) ; l'étape de façonnage du disque de roue (3) consistant à fabriquer le premier élément de centrage (4) et l'étape de façonnage de la jante de roue (2) consistant à fabriquer le second élément de centrage (5). Cette invention a l'avantage de permettre la fabrication d'une roue (1) composée d'un disque (3) et d'une jante (2) pouvant être facilement disposée en position centrée ou concentrique grâce à l'existence des éléments de centrage (4, 5). Les éléments de centrage (4, 5) sont fabriqués pendant le façonnage mécanique de la jante (2) et du disque (3) ce qui évite des étapes de fabrication ultérieures. Ainsi, les coûts de fabrication de cette roue (1) sont abaissés, le prix de vente au consommateur est réduit et, partant, la pénétration du marché est plus grande.
Patent WO-2004095956-A1 (WO)
Title: Machine permettant d'ouvrir des paquets de cigarettes et d'examiner des cigarettes
Inventor: VILLARINHO RICARDO
IPC: B65B69/00
Filed: 2003-12-18
Abstract: L'invention concerne une machine permettant d'ouvrir des paquets de cigarettes et d'examiner des cigarettes (1), et servant à récupérer des cigarettes contenues dans des paquets souples (72). Cette machine comprend : un accumulateur de paquets de cigarettes (2) ; un canal de transfert (3) ; un premier tambour (4) ; des pochettes de maintien de paquets de cigarettes (27) ; un dispositif pour ouvrir les volets du revêtement en feuille d'aluminium (28) ; des moyens de guidage (42) ; un dispositif de compression et de déplacement de logement d'étiquettes (29) ; un dispositif de rejet de paquets non ouverts (52) ; un second tambour (5) ; des moyens de guidage ; un compartiment de stockage de cigarettes (6) ; un rouleau à contre-rotation (54) ; un tambour d'examen (9) ; un dispositif d'examen de cigarettes (57) ; un dispositif de rejet de cigarettes ; des compartiments de stockage pour les logements d'étiquettes (12) ; des revêtements en feuille d'aluminium (13), et des cigarettes (11) ; un compartiment de stockage de paquets rejetés (22) ;  une courroie collectrice de cigarettes sélectionnées (10) ; et un cadre (71).
Patent CA-2000834-A1 (CA)
Inventor: TURY BERNARD
IPC: C10M169/00
Filed: 1989-10-17
Abstract: A composition which comprises (a) a salt of monovalent metal (M) of a carboxylic acid in which the COOH group is attached to a ring atom of a fused ring system and (b) a grease which is a non-soap thickened oil which may be a mineral oil or a synthetic oil such as a silicone oil. The metal (M) may be sodium. The fused ring system is preferably a fused aromatic hydrocarbon ring system such as naphthalene and may include further substituents, for example an -OH group, in addition to the COOH group. If the acid contains both OH and COOH groups, these can be attached to adjacent atoms of the fused ring system. Sodium 2-naphthoate and sodium 3-hydroxy-2-naphthoate have been found to be particularly suitable. The grease has improved corrosion resistance and the addition of the metal compound does not result in destructing of the grease.
Patent CA-2002205-A1 (CA)
Title: Contact lens cleaning device
Inventor: TANAKA TOYOYASU
IPC: G02C13/00
Filed: 1989-11-03
Abstract: Abstract of the Disclosure A contact lens cleaning device comprising a ball, a vessel formed with a recessed chamber for housing the lens and the ball, and a vibrator for vibrating the vessel.  The chamber has a bottom concave surface so curved that the lens is mounted in face-to-face contact thereon.  After the lens is sandwiched between the bottom concave surface of the chamber, the ball is cleaned when the vessel is vibrated by the vibrator.
Patent CA-2005674-A1 (CA)
Inventor: HERD DOUGLAS M
IPC: E01F13/06
Filed: 1989-12-15
Abstract: ABSTRACT A wrapper for parking area gates or construction barriers is disclosed.  The unique wrapper consists of an elong-ate piece of flexible generally paper-like material of sufficient length and width to wrap around a barrier arm.  Indicia of diagonally spaced blocks of contrasting colours are affixed to the wrapper in a parallel manner.  When a barrier member is replaced, the covering is wrapped about the barrier member and secured to itself thereby producing instantly a new barrier for re-operation of the parking area or protection of the construc-tion site.  The invention eliminates the cost of expensive cuts of wood and meticulous painting each time the barrier is broken.
Patent CA-2008359-A1 (CA)
Inventor: THATCHER BRAD
IPC: B65D25/20
Filed: 1990-01-23
Abstract: ABSTRACT OF THE DISCLOSURE          The present invention provides a basket and animated character combination.  The basket is formed with a continuous wall having a front wall region and a rear wall region with an open top and hollow interior.  The animated character is formed from discrete body parts including a head and upper body appendages supported by and extending above the rear wall region and separate lower body appendages supported by the front wall region of the basket.  The lower body appendages of the character are positioned on the front wall region relative to the head and upper body appendages on the rear wall region so as to give a false appearance of the character extending from the back wall region to the front wall region through the hollow interior of the basket.
Patent CA-2009944-A1 (CA)
Title: Fiber optic gyroscope using optical waveguide coupler
Inventor: SAKUMA KAZUHIRO
IPC: G01C19/66
Filed: 1990-02-13
Abstract: In a fiber optic gyroscope in which light from a light source is split into two beams for supply to one and the other end of an optical fiber coil respectively, and the two beams having propagated through the optical fiber coil and emitted the one and the other end thereof are coupled together for supply to a photodetector, there are separately formed on an optical integrated circuit substrate two optical waveguide couplers, each comprising a trunk and a pair of branches extending therefrom.  The pair of branches of a first one of the two optical waveguide couplers are connected to the light source and the photodetector, respectively, and the pair of branches of the second optical waveguide coupler are connected to the one and the other end of the optical fiber coil, respectively.  The trunks of the first and second optical waveguide couplers are interconnected via a connecting optical fiber.  The optical integrated circuit substrate is fixed to a reinforcing plate of a material which has a thermal expansion coefficient nearly equal to that of the optical integrated circuit substrate.  The reinforcing plate is held on a support structure by flexible holding means.
Patent CA-2013123-A1 (CA)
Title: Electrolytic regeneration of alkaline permanganate etching bath
Inventor: KRULIK GERALD A
IPC: C25B1/28
Filed: 1990-03-27
Abstract: ABSTRACT OF THE DISCLOSURE      Method and apparatus for generating permanganate ions electrolytically  in  an  aqueous   solution  containing manganate ions.   The solution is electrolyzed using an anode to cathode wetted area ratio of more than 5 to 1, applying sufficient voltage to generate hydrogen at the cathode  instead  of  reconverting  permanganate  ions  to manganate ions.
Patent CA-2013526-A1 (CA)
Title: Extractive distillation of hydrocarbons employing solvent mixture
Inventor: LEE FU M
IPC: C07C7/08
Filed: 1990-03-30
Abstract: An extractive distillation process for separating at least one cycloalkane from at least one close-boiling alkane employs as solvent a mixture of (a) at least one saturated C5-C9 alcohol (preferably cyclohexanol) and (b) at least one glycol compound (preferably tetraethylene glycol).
Patent CA-2015988-A1 (CA)
Inventor: TAYLOR CHARLES S
IPC: A61M25/01
Filed: 1990-05-03
Abstract: GUIDING MEMBER FOR VASCULAR CATHETERS  WITH A FLEXIBLE LINK DISTAL SECTION                ABSTRACT OF THE DISCLOSURE   A guidewire or guiding element for vascular catheters, particularly  balloon  dilatation  catheters  having  an elongated core member with a tapered distal portion with a flexible length of interfitting links on the tapered distal portion.  The individual links generally comprise a base with an aperture therein and a plurality of upwardly extending arms with the ends of the arms bent inwardly toward the longitudinal axis of the flexible length to engage the base of an adjacent link.  Improved flexibility and torquability are provided by the flexible length of interfitting links.
Patent CA-2019665-A1 (CA)
Inventor: BOQUET PAUL
IPC: C07K16/00
Filed: 1990-06-22
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention   provides hybrid poroteins between a fragment of an extracytoplasmic protein Pl, a protein P2 and an extracytoplasmic enzyme, the protein P2 being, in particular, an antigen or a single-chain variable frag-ment (Fv) of an antiboby, to a process for preparing them and  also  to  their application,  in particular,  as a diagnostic agent and in the screening of a nucleic acid library or in the selection of recombinant clones.  The nucleic  acid  sequence,       consists        of  a hybrid  sequence  comprising successively the leader sequence of the structural gene for a suitable protein ?1 exported or secreted by a microorganism,  in particular chosen  from the group which  comprises  bacteria  and yeasts,  a nucleic acid sequence coding for a NH2 terminal fragment or the mature protein P1, a nucleic acid sequence coding for a protein P2 and then a fragment coding for at least one functional fragment of the mature sequence of a suitable extracyto-plasmic enzyme, the assembly of these fragments being in a single reading frame and coding for a hybrid protein possessing simultaneously the properties of the enzyme and some properties of the protein P2, in particular that of interacting specifically with an antibody, an antigen or a receptor.
Patent CA-2019887-A1 (CA)
Title: More virulent biotype isolated from wild-type virus
Inventor: SHAPIRO MARTIN
IPC: C12N7/00
Filed: 1990-06-26
Abstract: Abstract of the Disclosure A method has been found to select the most virulent biotypes from a wild-type entomopathogenic virus by selection of desirable characteristics after serial passages through in vivo and in vitro systems.  Using this method, a strain of Lymantria  dispar NPV virus was isolated which had increased biological activity and increased speed of kill.
Patent CA-2021172-A1 (CA)
Title: Monocyclic terpene derivatives
Inventor: TAKAYANAGI HISAO
IPC: C07F7/18
Filed: 1990-07-13
Abstract: Abstract of the Disclosure:        MONOCYCLIC TERPENE DERIVATIVES         Novel monocyclic terpene derivative of the formula:                                    (I) wherein R is hydrogen atom, trimethylsilyl group or 1-ethoxyethyl group, and novel intermediates therefor.  The terpene derivative (I) is a useful intermediate for preparing Sarcophytol A having an anti-carcinogenesis promoter activity and an antitumor activity.
Patent CA-2022408-A1 (CA)
Inventor: BODMAN MICHAEL P
IPC: C07D213/80
Filed: 1990-07-31
Abstract: ABSTRACT OF THE DISCLOSURE           A method for preparing pyridine carboxylic acid esters by reacting N-hydroxyamino derivatives of the formula:                                             II   wherein R5 and R6 are each independently H, COZ, or CN, provided that they are not both H; or R5 and R6 together are -CO-NR10-CO; Z is OR8 or NR8R9; R8 and R9 are each independently H or alkyl or aryl; or R8 and R9 together with the nitrogen atom form an aliphatic or aromatic heterocyclic structures and R10 is hydrogen, alkyl, aryl, hydroxy or an alkoxy of 1-6 carbon atoms; with an .alpha.,.beta.-unsaturated aldehyde or ketone is disclosed.  In an additional embodiment, an alkene of formula R5-CH=CH-R6, wherein R5 and R6 are defined as above, is reacted with hydroxylamine or a salt thereof to form N-hydroxylamino derivatives which are then treated as above.
Patent CA-2022646-A1 (CA)
Title: Process of combusting an h2s-containing gas
Inventor: KRIEBEL MANFRED
IPC: C01B17/04
Filed: 1990-08-03
Abstract: The H2S-containing gas is combusted with oxygen in at least one burner, which discharges into a combustion chamber. The resulting mixed gases contain H2S, SO2, free hydrogen and elementary sulfur and are at temperatures of about 900 to 2000°C. At temperatures of about 900 to 2000°C at least part of the free hydrogen is removed from said mixed gases. The free hydrogen may be removed from the mixed gases, e.g., through membranes.
Patent CA-2022958-A1 (CA)
Title: Portable handsets
Inventor: GREENWOOD MARTIN
IPC: H01Q1/24
Filed: 1990-08-09
Abstract: Abstract Title:  Portable Handsets A portable handset includes a burst mode radio transmitter/receiver unit having an antenna (14).  The handset carries a screening plate (16) to screen a user's hearing aid (20) from the radio frequency power produced by the antenna (14) of the unit.
Patent CA-2027170-A1 (CA)
Title: Pyramid puzzle
Inventor: ESSEBAGGERS JAN
IPC: A63F9/12
Filed: 1990-10-09
Abstract: PYRAMID PUZZLE                          ABSTRACT OF THE INVENTION     The invention provides a puzzle embodied in a 3-sided regularly shaped pyramid  comprising eleven  smaller  3-sided pyramides  and  four small octaeder shaped bodies, which smaller pieces are connected to a string  forming  an  endless  chain.  The  complexity  of  the  puzzle  is achieved by coloring the side planes of the smaller parts in various colors and connecting the smaller pieces  in a certain sequence to a string. The solution of the puzzle is obtained by placing the smaller parts of puzzle in such a way that the large pyramid is formed and the side planes of the large pyramid are uniformly colored by the smaller pieces. A preferred embodiment is given in figure 1 and 2 comprising the 15 smaller pieces of figure 3 and 4 placed in a continuous string as shown in figure 5.
Patent CA-2030245-A1 (CA)
IPC: B29C35/00
Filed: 1990-11-19
Abstract: ABSTRACT OF THE DISCLOSURE      A molded article of a syndiotactic polypropylene having excellent transparency in which a melting point attributed to the polypropylene having the syndiotactic structure measured at a heating rate of 10°C/minute by differential scanning thermal analysis is represented by a substantially single peak, the aforesaid molded article being prepared by heating, melting and then hot-molding a homopolymer of propylene or a copolymer of propylene and a small amount of another olefin, which have a substan-tially syndiotactic structure, or a mixture of the homopolymer or the copolymer and a small amount of a polypropylene having a substantially isotactic structure, followed by quenching, or, after these steps, addition-ally subjecting the above molded article to a heat treatment at a temperature of less than its melting point.  A method for preparing the above molded article is also disclosed here.
Patent CA-2030683-A1 (CA)
Inventor: VARSHNEY SUNIL K
IPC: C08F4/46
Filed: 1990-11-26
Abstract: Process for anionic polymerisation of an N-substituted maleimide in a solvent and in the presence of at least one alkali metal organometallic initiator, where the initiator employed is sec-butyl-lithium, sodium alcoholates, diphenylmethylpotassium or naphthalene- lithium or -sodium; a process for the preparation of polymer based on N-substituted maleimide with a narrow molecular mass distribution by anionic polymerisation of maleimide in a solvent and in the presence of an initiating system consisting of at least one alkali metal organometallic initiator and of at least one inorganic salt and/or an organic salt of an alkali or alkaline-earth metal; a polymer block based on N-substituted maleimide of mean molecular weight 12,000-100,000; a polymer block based on N-substituted maleimide of polydispersity 1.1-1.5; and a multiblock copolymer in which at least one polymer block based on N-substituted maleimide is used in combination with at least one polymer block based on (meth)acrylic monomer.
Patent CA-2031990-A1 (CA)
Inventor: BUCCICONE DANA F
IPC: F16K31/60
Filed: 1990-12-11
Abstract: Abstract Of The Disclosure A handle assembly which is attachable to a conventional valve stem and includes a decorative handle member is disclosed. In a preferred embodi-ment, an adapter element has an interior splined surface that mounts on the valve stern. The adapter also includes external splines and an annular flange. The adapter is positioned within a central opening in an escutcheon. A mounting screw fastens the adapter to the valve stem, with the escutcheon trapped beneath the adapter due to the presence of the annular flange. A post member has internal splines which engage the external splines of the adapter so that the parts rotate together. In addition, the post member has external splines which engage a splined opening in a handle. The handle comprises a bottom lever bar and a top lever bar. A strap cap is positioned over the handle and has a threaded hole to receive an upwardly-directed bolt. The bolt presses the handle between the strap cap and the post member. In the final step of as-sembly, a threaded surface on the escutcheon is rotatively engaged with a threaded surface on the post member, thereby pressing the adapter element be-tween the escutcheon and the post member.
Patent CA-2032666-A1 (CA)
Title: Process for the production of a ceramic fiber/matrix composite material, and composite material obtained by this process
Inventor: PARLIER MICHEL
IPC: C04B35/63
Filed: 1990-12-19
Abstract: The matrix is formed by particles of ceramic material which are introduced into the empty spaces of a fibrous  structure and are bonded to one  another by bridges of ceramic material obtained by in situ pyrolysis of a liquid polymer.        By means of this process, a composite material of low porosity, despite a high reduction in volume during pyrolysis, is obtained relatively rapidly.
Patent CA-2033583-A1 (CA)
Inventor: JEZIC ZDRAVKO P
IPC: B32B27/00
Filed: 1991-01-03
Abstract: ABSTRACT         Fiber, preferably microfibers, of a syndiotactic vinyl aromatic polymer, are produced by a melt-blowing process in which a vinyl aromatic polymer having a high degree of syndiotacticity is supplied in a molten form from at least one orifice of a nozzle into a gas stream which attenuates the molten polymer into fibers.  Such fibers are particularly useful for preparation of nonwoven mats having utility in the field of high temperature filtration, coalescing and insulation.   38,513-F
Patent CA-2037024-A1 (CA)
Inventor: FREESE UWE
IPC: B01F5/04
Filed: 1991-02-25
Abstract: A water-jet tube for water jet injection devices is provided, in which a valve is arranged at a short distance from the free end of the water-jet tube and directly therein, which automatically closes as a function of the flow condition in the water-jet tube, and which preferably has a valve-closing body biased to the closed position by permanent-magnetic forces.
Patent CA-2037268-A1 (CA)
Title: Endoscoptic aspiration instrument
Inventor: TOPEL HOWARD C
IPC: A61M1/00
Filed: 1991-02-27
Abstract: Topel-Foster  1-3 Abstract of the Disclosure An endoscopic aspiration instrument suitable for use with a trocar sheath in laparoscopic surgical procedures is disclosed for aspirating fluid from an ovarian cyst without leakage of the  fluid  into the peritoneal  cavity.   The endoscopic instrument comprises a elongated suction tube member  having  a  needle  guide  positioned  within  the passageway thereof.  The suction tube and needle guide are connected at the proximal ends thereof with the use of a three access port connector.  The first access port connects to the proximal end of the suction tube.  The proximal end of the needle guide tube is extended through the first port and connected to the second port of the T-type connector. An aspiration needle is inserted through a sealing cap positioned  over  the  second  access  port  and  into  the passageway of the needle guide tube.   A centering device comprising a sleeve and a plurality of radially extending arms is positioned about the distal end of the needle guide tube  for  centering  the  needle  guide  tube  within  the passageway of the suction tube.   The centering device is also located a predetermined distance from the distal end of the suction tube for preventing the ovarian cyst from being drawn too far into the suction tube.   The connector also includes  a  third  side  port  for  connection  to  suction equipment for providing a vacuum in the suction tube to engage the ovarian cyst.
Patent CA-2037428-A1 (CA)
Inventor: TAKAHASHI AKIRA
IPC: G11B11/105
Filed: 1991-03-01
Abstract: A reproducing optical device for a magneto-optical recording medium related to the present invention having light sources that emit linearly polarized lights towards a   magneto-optical   recording   medium,    polarization directions of the linearly polarized lights being mutually orthogonal.  A quarter wavelength plate disposed between the recording medium and the light sources converts each of  the  linearly polarized  lights  into  right  and  left circularly polarized lights respectively.   Corresponding to  recorded  information,   the  recording  medium  has magnetized   sections   that   are   magnetized   in a perpendicularly upward and downward direction with respect to  a  medium  surface.   Moreover,  the  recording  medium displays the property of  circular dichroism.   When the right circularly polarized light and the left circularly polarized light are reflected off the recording medium, a first and a second photodetector generate a first and a second reproduced signal respectively, based on variation in reflected light intensity of each of the circularly polarized  lights.   This  variation  corresponds  to  the upward and the downward magnetization directions of the magnetized sections and is due to the circular dichroism effect.   There  is  a  phase difference of  half  a  cycle between the first and the second reproduced signal and the signals  vary  inversely  with  respect  to  each  other.          Consequently,  disk noise is cancelled by differentially amplifying the first and the second reproduced signal, and an  SN  ratio  of  a  reproduced  signal  thereby  can  be improved.