baber/WOPTO huggingface dataset:
Patent WO-9112080-A1 (WO)
Inventor: SENIOR GEOFFREY DAVID
IPC: B03D1/008
Filed: 1991-02-07
Abstract: Le procédé décrit, qui sert à récupérer le zircon contenu dans un matériau renfermant du zircon particulaire, consiste à mettre en contact le matériau renfermant du zircon avec une solution de savon, puis à procéder à au moins un lavage à l'eau et au moins à un lavage à l'acide. Le produit lavé à l'acide est ensuite soumis à une opération de flottation, pendant laquelle le zircon est séparé. Le matériau de départ utilisé dans ce procédé peut être constitué par un préconcentré, produit par flottation. Dans un autre aspect de la présente invention, des minerais contenant du titane, qui sont passivés pendant l'étape de flottation du zircon, peuvent être récupérés par flottation grâce à l'utilisation d'un collecteur anionique, tel que du carboxylate, du phosphonate ou un acide gras sulfoné. Un sulfosuccinamate est préféré.
Patent WO-9816743-A1 (WO)
Title: Machine rotative
Inventor: DYKTYNSKI BENJAMIN FRANCIS
IPC: F01C21/08
Filed: 1997-10-13
Abstract: Cette invention se rapporte à une machine hydraulique rotative (10) conçue pour être incorporée dans un train de tiges de forage (92) d'une installation de puits (86). Cette machine (10) est particulièrement conçue pour servir de moteur et elle comprend un logement externe (11) ayant une configuration généralement cylindrique avec une surface radiale interne (12). Un ensemble à arbre (13) est monté rotatif dans ce logement (11), cet ensemble comportant un arbre (14) sur lequel est monté un stator (15). Ce stator (15) comporte plusieurs lobes (16) qui ont un rayon maximum approximativement égal au rayon de la surface (12). Plusieurs portillons (35) sont montés dans le logement (11) en position radialement mobile et coopèrent avec le stator (15). L'arbre (14) est creux pour assurer l'apport de fluide hydraulique aux chambres de travail (45 et 46) de la machine (10) et pour assurer le retrait de fluide hydraulique de ces chambres.
Patent WO-9966143-A1 (WO)
Title: Fixation d'elements de construction
Inventor: RUDDUCK DICKORY
IPC: B25B7/02
Filed: 1999-06-17
Abstract: Ce système permet de fixer un élément (12, 14) à un montant (18). L'élément, essentiellement un panneau, se définit par une première face (13) et une seconde face (17). Le système de l'invention inclut des organes de fixation (16) conçu pour raccorder l'élément au montant par la seconde face (17) sans traverser la première face (13), ce qui réduit les coûts de finition. L'organe de fixation peut être réalisé dans la masse du montant ou séparément du montant. Ces organes de fixation peuvent être des éperons (16), des aimants, des crochets ou des pointes multiples.
Patent WO-02094417-A1 (WO)
Title: Method and device for gas separation by adsorption, in particular for industrial oxygen production
Inventor: RIBESSE JACQUES
IPC: B01D53/053
Filed: 2002-05-16
Abstract: The invention concerns a method and a device for separating components of a gas by adsorption, vacuum pressure swing adsorption (VPSA), with two reactors lined with adsorbents selected on the basis of the gas to be adsorbed, and operating in accordance with a four-phase cycle comprising pressure variations at room temperature; adsorption under pressure in a first reactor and purified gas production, vacuum desorption of the second reactor and rinsing the purified gas, further adsorption and purified gas production to the first reactor and re-pressurising the second reactor, adsorption to the second reactor and purified gas production, desorption of the first reactor with rinsing, adsorption to the second reactor with purified gas production and re-pressurising the first reactor, repeating the cycle; and use of a rotary gas dispenser for carrying out said four phases with radial circulation mode of the gases in the adsorbent masses at constant speed and with inverse rinsing of the masses with purified gas during desorption, resulting in substantial reduction of power consumption.
Patent WO-8912554-A1 (WO)
Title: Binding element for binding loose sheets in a file
Inventor: LOLLI CARLA P
IPC: B42D3/00
Filed: 1989-06-16
Abstract: Binding element for binding loose sheets in a file (7), characterised in that it principally consists of a sheet (2) of relatively stiff material, that preferably shows the same dimensions as those of the documents to be bound; and a strip of glue (3), which extends past the sheet (2), installed over the whole length or over almost the whole length on the side of the sheet (2) which is destined to be placed next to the edge (6) of the bundle (5) to be bound.
Patent BG-48763-A1 (BG)
Title: Device for electro- chemical processing
Inventor: STEPANENKO ALEKSANDR V
IPC: C25F7/00
Filed: 1987-10-29
Abstract: The equipment is applied for plasmoelectrolytic processing of long articles, e.g. band files, sheets, wire, etc. It ensures increased labour productivity and easy processing of the articles. The equipment consists of a body with a vat containing the electrolyte, input and output line for the articles, head pressure pipeline and an overflow siphon. The body-vat is designed in the shape of two coaxial cups, the bottoms of which form a damping chamber in between connected to the tap water line. The bottom of the inner cup is perforated and along the cross-section are fixed flat parallel screens, at the centre of which are formed on both sides windows with a profiled groove. In addition the body comprises siphons and spraying chambers are mounted on the top and outlet of the equipment. Transportation of the articles requires a feeding mechanism. The body is covered with a cap and an evaporator. The spraying chambers are connected to a head pressure and overflow pipeline.
Patent WO-03070510-A1 (WO)
Inventor: SKREPNEK ANDY
IPC: B60N2/28
Filed: 2003-02-19
Abstract: An automobile child safety restraint system, comprising an anchoring bar (10) at least one wire anchoring loop (20) affixed to the tubular anchoring bar (10) without welding, and a method of manufacturing same.
Patent CA-2002376-A1 (CA)
Title: Process for producing rubber tube and resin coating device used therein
Inventor: SHIGEMOTO HIROMI
IPC: B29C47/02
Filed: 1989-11-07
Abstract: This invention relates to a process and a device for producing a rubber tube.          It is the subject of this invention to provide a process and a device for efficiently producing a rubber tube having a smooth outside surface, and this subject is achieved by a process and a device characterized in that a molten synthetic resin is heated from the inner circumferential side immediately before it flows from a die along the periphery of a rubber material layer.          This invention can be used for the efficient production of a rubber tube having a smooth outside surface.
Patent CA-2003553-A1 (CA)
Inventor: MERGER FRANZ
IPC: C07C227/08
Filed: 1989-11-20
Abstract: 6-Aminocaproic esters are prepared by reacting alkyl 5-formylvalerates with excess ammonia and hydrogen in the presence of ruthenium catalysts at elevated temperature under superatmospheric pressure in liquid ammonia as reaction medium.
Patent CA-2006528-A1 (CA)
Title: Body care system
Inventor: HORVATH TIBOR
IPC: A47K7/03
Filed: 1989-12-22
Abstract: ABSTRACT          A body care system comprising the foot care device, a holder for the device and a dispenser for the ready dispensing of a soap or gel is provided as is a method for performing the same.            The foot care device for cleaning and/or massaging a person's foot has securement means to releasably secure the foot care device to a supporting surface such as the floor of a tub or shower and has elongate connection means attached or attachable to the foot care device whereby the foot care device may in use be placed on the supporting surface, used to massage and/or clean a person's foot and thereafter be removed from the supporting surface by means of the elongate connection means. The foot care device may then be replaced in the article holder means.
Patent CA-2007417-A1 (CA)
Title: Method of lamprey control
IPC: A01K61/70
Filed: 1990-01-09
Abstract: ABSTRACT OF THE INVENTION          A method of controlling the population of sea lamprey wherein a suitable treatment site is chosen and rocks of a sufficient size and concentration are then introduced to the floor of the watercourse to create an inhospitable environment for spawning lamprey.  Various means of locating appropriate treatment sites and carrying out the treatment of the site chosen are described.
Patent CA-2009085-A1 (CA)
Title: Coatings of intermediate molecular weight polyimides
Inventor: VORA ROHITKUMAR H
IPC: C08G73/10
Filed: 1990-02-01
Abstract: ABSTRACT OF THE INVENTION            The  present  invention  provides  a  process  for  coating substrates with a polyimide polymer, said polymer prepared by  a  process  of   subjecting  a  mixture  of  aromatic dianhydride and aromatic diamine monomers, at least one of which contains  the group  (CF3  -  ?  -  R)  linking  two aromatic moieties, wherein R is CF3 or phenyl, to a low temperature,     substantially     isothermal     solution polymerization process wherein the content of the mixed monomers in solvent is maintained within the range of from about 8 to about 12% by weight solids concentration during the polymerization process.  The process is conducted for a sufficient length of time and uniformity of temperature, generally below about 35°C, to achieve a weight average polyimide polymer molecular weight within the range of about 80,000 to about 135,000, more preferably of about 90,000 to about 125,000,  a polyimide inherent viscosity within the range of from about 0.45 to about 0.70, and a polydispersity with the range of from about 1.7 to about 2.6.  The invention also relates to articles coated with said polyimide polymer, such as silicon wafers.
Patent CA-2009428-A1 (CA)
Title: Perforating apparatus for transverse perforations in webs of paper-like material
Inventor: BIAGIOTTI GUGLIELMO
IPC: B26F1/14
Filed: 1990-02-06
Abstract: A machine is described for perforating webs of  material, such as toilet  paper. The  machine includes  a cylinder  (17) mounted on the frame of the machine and around which  cylinder the web is carried as the web passes through the machine.  The cylinder has a plurality of blades, one edge of each extending beyond the surface of the cylinder and parallel to the axis of the cylinder. A support (21) for  a cooperating blade (33)  is pivotally mounted on the machine in a manner which permits the cooperating blade (33) to move toward and away from the blades in the cylinder (17). The cooperating blade (33) extends at an angle to the axis of the cylinder and consists of a  plurality of segments, each of which is supported in a block (25)  which fits into seats  in the support.  The seats extend  in a  line parallel to the cylinder axis.
Patent CA-2010013-A1 (CA)
Title: Cross-linkable mixtures based on hydrogenated nitrile rubber and ethylene/acrylonitrile copolymers
Inventor: SZENTIVANYI ZSOLT
IPC: C08L15/00
Filed: 1990-02-14
Abstract: CROSS-LINKABLE MIXTURES BASED ON HYDROGENATED NITRILE RUBBER AND ETHYLENE/ACRYLONITRILE COPOLYMERS     Abstract Rubber mixtures of hydrogenated nitrile rubber and ethylene/ acrylonitrile copolymers, which contain copolymerized units of compounds with at least two (meth-)acryloyl groups, are easy to process and give vulcanized materials of high solvent resistance without any deterioration in the mechanical properties.     Le A 26 003
Patent CA-2014660-A1 (CA)
Title: Perforated membranes for liquid control in acoustic ink printing
Inventor: KHURI-YAKUB BUTRUS T
IPC: B41J2/045
Filed: 1990-04-17
Abstract: In accordance with the present invention, an acoustic ink printer comprises a pool of liquid ink having a free surface in intimate contact with the inner face of a perforated membrane. The printer addresses all pixel positions within its image field via substantially uniform, relatively large diameter apertures which extend through the membrane on centers that are aligned with respective ones of the pixel positions. In operation, one or more focused acoustic beams selectively eject individual droplets of ink from the ink menisci that extend across the apertures. Accordingly, the membrane is positioned and the bias pressure that is applied to the ink is selected so that the menisci essentially remain within the focal plane of such beam or beams.
Patent CA-2015877-A1 (CA)
IPC: H01H23/00
Filed: 1990-05-01
Abstract: ABSTRACT OF THE DISCLOSURE     A switch assembly having a first and second snap acting switch sequentially actuated by user movement of a single rocker which contains a cantilever blade spring for effecting actuation of said first switch; and, upon continued user movement of the rocker overtravel of said first snap acting switch is absorbed by resilient movement of said cantilever blade member.
Patent CA-2017435-A1 (CA)
Inventor: ANDREPONT JOHN S
IPC: B65D88/54
Filed: 1990-05-24
Abstract: An enclosed storage tank for the simultaneous addition and removal, and storage, of two liquid layers of different density comprising a tank shell having a bottom, a side wall extending upwardly from the bottom, a roof supported at least in part by the side wall and at least one vertical tubular column extending upwardly from the shell bottom to at least close to the roof; a substantially horizontal first distributor plate above which the column extends and with the plate spaced above but adjacent to the shell bottom; first openings in the column between the first distributor plate and the shell bottom; a high density liquid conduit extending from outside the shell to the column interior whereby high density liquid can be fed to the column interior and then flow out the first openings into the lower portion of the tank beneath the first distributor plate and the high density liquid can be withdrawn from the tank through the first openings and then through the high density liquid conduit; a substantially horizontal second distributor plate above and below which the column extends and with the second distributor plate spaced below but adjacent to the shell roof; second openings in the column between the second distributor plate and shell roof; a low density liquid conduit extending from outside the shell into communication with the column interior whereby low density liquid can be fed to the column interior and then flow out the second openings into the upper portion of the tank above the second distributor plate while high density liquid is withdrawn from the tank through the high density liquid conduit, and the low density liquid can be withdrawn from the tank through the second openings and then through the low density liquid conduit while the high density liquid is fed to the tank through the high density liquid conduit.
Patent CA-2021763-A1 (CA)
IPC: F24H1/20
Filed: 1990-07-23
Abstract: IMPROVED BURNER FOR FORCED DRAFT CONTROLLED MIXTURE HEATING SYSTEM USING A CLOSED COMBUSTION CHAMBER                  Abstract of the Invention An improved burner includes an inner and outer tube specially configured to supply a balanced distribution of combustion gases to the outer surface of the burner while allowing the heating apparatus to operate quietly.
Patent CA-2022156-A1 (CA)
Inventor: KEYSER PAUL F
IPC: B05B12/24
Filed: 1990-07-27
Abstract: A masking tape for EMI shielding applications comprising an adhesive layer, a metal foil layer adhered to the top of the adhesive layer, one or more adhesive strips running parallel to the edges of the tape and extending along the length of the foil.  The one or more strips are preferably inset from the outer edges of the foil so as to form a stepped, indented or notch-like configuration.  A mask layer is attachad to the top of the one or more strips. The mask alone or the mask and the one or more strips are designed to be removed after use.  The tape is applied to a substrate such as a computer cabinet, the cabinet is then sprayed with a paint or finish coat and the mask is removed to reveal a conductive metal foil surface to which a conductive EMI shield can be mounted.
Patent CA-2024049-A1 (CA)
Title: Cryptographic method and apparatus for public key exchange with authentication
Inventor: GOSS KENNETH C
IPC: H04L9/28
Filed: 1990-08-27
Abstract: CRYPTOGRAPHIC METHOD AND APPARATUS FOR PUBLIC KEY EXCHANGE WITH AUTHENTICATION             ABSTRACT OF THE DISCLOSURE          A technique for use in a public key exchange cryptographic system, in which two user devices estab-lish a common session key by exchanging information over an insecure communication channel,  and in which each user can authenticate the identity of the other, without the need for a key distribution center. Each device has a previously stored unique random number Xi, and a previously stored composite quantity that is formed by transforming Xi to Yi using a transformation of which the inverse in computationally infeasible; then concatenating Yi with a publicly known device identifier, and digitally signing the quantity. Before a communication session is established,  two user devices exchange their signed composite quantities, transform them to unsigned form, and authenticate the identity of the other user. Then each device generates the same session key by transforming the received Y value with its own X value. For further security, each device also generates another random number X'i, which is transformed to a corresponding number Y'i. These Y'i values are also exchanged, and the session key is generated in each device, using a transformation that involves the device's own Xi and X'i numbers and the Yi and Y'i numbers received from the other device.
Patent CA-2025537-A1 (CA)
Title: Protease inhibitor and process for producing it
Inventor: IKE YOSHIMASA
IPC: C07K14/81
Filed: 1990-02-22
Abstract: ABSTRACT  The present invention relates to methionine trypstatin which is a novel protease inhibitor, a gene encoding its amino acid sequence, a plasmid containing this gene, a microorganism transformed by the plasmid and a process for producing methionine trypstatin using the microorganism.          Trypstatin, which has not previously been produced by microorganisms, is produced as methionine trypstatin using a microorganism, by adding methionine to the N terminus of trypstatin, selecting the appropriate DNA from all DNAs that the microorganism can produce, and constructing the plasmid.          Methionine trypstatin is promising as an agent for the treatment or prevention of nephritis, chronic articular rheumatism, liver cirrhosis, or other conditions in which tryptase participates.
Patent CA-2025682-A1 (CA)
Title: Casing suspension system
Inventor: MILLER JACK E
IPC: E21B33/043
Filed: 1990-09-19
Abstract: ABSTRACT    The casing suspension system includes a hanger having a load transfer mechanism and a finding/latching mechanism for finding, latching, and transferring load to an outer casing.   The load transfer mechanism includes a ring disposed within a reduced diameter  portion  around the  hanger.    The  ring  includes  a plurality of load bearing elements extending downwardly with the load bearing elements having a plurality of external teeth.  The load bearing elements include an upwardly facing convex annular shoulder which engages a mating downwardly facing concave annular shoulder on the hanger.  A spring retainer is disposed around the lower end of the load bearing elements to bias the load bearing elements  inwardly.    The hanger  also  includes a  spring tube disposed below the load transfer ring.  The spring tube includes a plurality of integral gates having keys.   As the hanger is lowered into the well, the spring retainer maintains the load bearing elements in the "in" position.   Once the keys on the spring tube  engage  a profile  in the outer casing, the  load transfer ring moves downwardly with respect to the spring tube causing the spring tube to wedge the load bearing elements in the "out" position into engagement with the outer casing.
Patent CA-2029541-A1 (CA)
Title: Neck labelling machine
Inventor: MALTHOUSE MARTIN
IPC: B65C9/00
Filed: 1990-11-09
Abstract: Abstract Labelling equipment for applying wrap-around labels to cylindrical containers, e.g. bottles 50.  The equipment includes a label carrier 36 having a wheel 119 rotatable about its axis, a vacuum system 140,142 coupled to the wheel to retain labels (e.g. 44) on the wheel, a feeder 34 for directing containers individually to the wheel adjacent the periphery of the wheel to receive a label, and a drive system 38 for receiving containers from the container feeder and for rolling the containers upon receiving the label from the label carrier.  The drive system includes at least one belt 128 engaged about the wheel 119 in slipping relationship therewith to permit the belt to move faster than the periphery of the wheel and including a portion for moving in contact with the container 50 immediately after the container leaves the feeder to both carry the label 48 off the wheel and to engage it on the container.  A cutter arrangement 40 is provided with a lobe 85 which removes tension from the label 129 as it is severed from the strip of labels.
Patent CA-2032944-A1 (CA)
Title: Subsituted 1-aminomethyl-3-aryl-4-cyano-pyrroles
Inventor: WOLLWEBER DETLEF
IPC: C07D405/12
Filed: 1990-12-21
Abstract: Abstract Fungicidal and microbicidal substituted 1-aminomethyl-3-aryl-4-cyano-pyrroles of the formula (I)   in which Ar   represents optionally substituted phenyl, R1   represents optionally substituted alkyl,  alkenyl, alkYnyl or cycloalkyl or in each case optionally substituted aralkyl or aryl and R2   represents alkyl or in each case optionally substi-tuted cycloalkylalkyl, aralkyl, cycloalkyl or aryl, and their acid addition salts.
Patent CA-2035362-A1 (CA)
Inventor: VIVIER MAURICE
IPC: E01C7/26
Filed: 1991-01-31
Abstract: The subject of the invention is a multi-layered roadway covering, in particular for roadways whose foundations are cracked, and a method for producing this covering. 
<??>The covering according to the invention, constituted by a bituminous membrane applied to the foundation of the roadway and by a running layer or a connecting layer, is characterised in that it comprises, between the bituminous membrane and the running or connecting layer, at least one layer of cold moulded cladding. 
<??>The method consists in successively applying to the roadway foundation, possibly coated with a surfacing layer: 
 
  - a layer of bituminous binder, 
  - in the cold condition, a layer of a compound containing a bituminous binder and an aggregate, 
  - a running or connecting layer. 
 
<??>These coatings are particularly effective for slowing down the rising through the running layer of cracks forming in the roadway support.
Patent CA-2037992-A1 (CA)
Title: Transport device
Inventor: STRASSER KARL-HEINZ
IPC: B65G47/61
Filed: 1991-03-11
Abstract: TITLE OF THE INVENTION:               TRANSPORT DEVICE ABSTRACT OF THE DISCLOSURE:    A  transport  device  for  the  controllable conveying of transport containers from a loading station to an unloading station with a preferably horizontally  oriented,   continuously  rotating transport device in the form of a transport wheel is  provided.    The  transport  containers  are suspended at a carrier that engages and disengages the transport wheel.  With the transport wheel it is possible to compensate for different operating speeds of the machines that are interconnected by the transport wheel,  so that an automated and continuous operating mode with little operating expenditure is provided.   The transport wheel serves also as a storage unit for a packing unit arranged at the unloading station which may be operated continuously during shut-down periods of the preceding machine.