baber/WOPTO huggingface dataset:
Patent CA-2013732-A1 (CA)
Inventor: GEDDES LESLIE A
IPC: A61B17/34
Filed: 1990-04-03
Abstract: Geddes-Hinds-Bourland-Voorhees  1-1-1-1 Abstract of the Disclosure Method  and  apparatus  are  disclosed  for  thermally destroying a layer of an organ such as the mucosal layer of the gallbladder.  The apparatus includes a catheter having an elongated member having a plurality of lumens therein. At the distal end of the elongated member is an electrode for emitting radiofrequency current to the mucosal layer. Also at the distal end is a capacitive balloon electrode surrounding the current-emitting electrode for containing an electrolyte solution and for distributing the radiofrequency current to the mucosal layer.   The balloon electrode is expanded with the electrolyte solution to conform and make contact with the mucosal layer.  The electrolyte solution has a resistivity significantly less than the resistivity of the gallbladder wall, as well as the gallbladder bile, to cause a concentrated power deposition in the mucosal layer. The distal end of the catheter is endoscopically inserted into the body of the gallbladder by a retrograde route through the duodenum,  common bile duct and cystic duct. While the balloon electrode is being expanded,  the bile present in the gallbladder is drained through one of the lumens in the elongated member.  The apparatus also includes a  radiofrequency  generator  for  supplying  radiofrequency current to the current-emitting electrode.   The current-emitting electrode is energized for a period of time to cause the mucosal layer to be heated for a predetermined period of time to thermally coagulate the mucosal layer of the gallbladder and cystic duct.  A dispersive electrode is positioned on the skin of the patient's body to facilitate a complete circuit back to the generator without causing trauma to the patient.
Patent CA-2015277-A1 (CA)
Inventor: NAKAJIMA KAZUHIKO
IPC: C01B39/02
Filed: 1990-04-24
Abstract: Synthetic zeolite is stabilized to water by soaking it in an acid solution for a prolonged time.      The stabilized synthetic zeolite does not exhibit alkalinity when it is dispersed in water at room temperature or elevated temperatures for 24 hours or more.
Patent CA-2015503-A1 (CA)
Inventor: MORI KOICHI
IPC: D06F39/12
Filed: 1990-04-26
Abstract: Une laveuse comprend une cuve de lavage supportée de façon élastique dans le corps de la laveuse; un élément d'insonorisation couvrant le fond du corps; l'élément d'insonorisation comportant une ouverture pour l'insertion d'une cale en vue d'empêcher la cuve de lavage de bouger quand la laveuse doit être emballée; et un couvercle pour ouvrir et fermer l'ouverture.
Patent CA-2018419-A1 (CA)
Title: Method for controlling macroinvertebrates utilizing decylthioethylamine
Inventor: WHITEKETTLE WILSON K
IPC: C02F1/50
Filed: 1990-06-06
Abstract: ABSTRACT           A method of controlling the fouling potential of macroin-vertebrates, such as mollusks in aqueous systems which comprises adding to the system an effective controlling amount of an alkylthio-alkylamine or acid addition salt thereof.
Patent CA-2021053-A1 (CA)
Title: Modification method of synthetic resins and modified synthetic resins
Inventor: FURUNO NOBUO
IPC: C08F6/16
Filed: 1990-07-12
Abstract: ABSTRACT    A method of modifying a synthetic resin comprises treating a solution or dispersion of the synthetic resin containing water-soluble electrolytes as impurities is treated with basic or acidic, water-insoluble fine particles which have been purified and classified, whereby cations having origin in the electrolytes are fixed in the acidic fine particles or anions having origin in the electrolytes are fixed in the basic fine particles. Synthetic resins modified in accordance with the modification method are produced.
Patent CA-2023836-A1 (CA)
Inventor: CORREIA YVES
IPC: C07C17/20
Filed: 1990-08-23
Abstract: Process for the purification of 1,1-dichloro-1-fluoroethane. To remove the unsaturated impurities such as 1,1-dichloroethylene and dichloroacetylene, the crude 1,1-dichloro-1-fluoroethane is subjected to the action of chlorine and/or of a hydracid, this treatment being performed in the presence of a Lewis acid or, only in the case of chlorine, by photochemical catalysis.
Patent CA-2024504-A1 (CA)
Title: Adhesive spreader
Inventor: READING JAMES
IPC: B05C17/00
Filed: 1990-08-31
Abstract: 73545-2 SDB:hmb ABSTRACT    This invention provides a tool for dispensing and applying viscous material such as tar and adhesives.  The tool can be disassembled for cleaning and reassembled for subsequent use.
Patent CA-2024908-A1 (CA)
Inventor: TAKAHASHI KENJIRO
IPC: B60R13/04
Filed: 1990-09-07
Abstract: ABSTRACT           A trim strip for application to the edge of a truck cap having a base piece to be attached directly to the truck cap and a top cover piece to fit into the base piece is provided. The base piece is made of a flexible material, contains a thin strip of aluminum and has means for accepting the top cover piece.  The top cover piece is made of a flexible material and is bent to fit into the base piece.
Patent CA-2025119-A1 (CA)
Title: Process for producing monocrystalline group ii-vi or group iii-v compounds and products thereof
Inventor: KREMER RUSSELL E
IPC: C30B29/40
Filed: 1990-09-12
Abstract: Abstract This disclosure relates  to 2 process  for producing monocrystalline Group II-VI or Group III-V compounds from the polycrystalline form of said Group  I I-VI or Group  III-V  compound, said process  comprising coating  the  interior  surface  of a  crucible with  a  powdered  solid having a melting point higher than the polycrystalline form of the compound,  placing  an  amount  of  polycrystalline  compound  into  the coated  crucible,  heating  the  crucible  to  produce  a  melt  while maintaining  the  powder  in  solid  form  and  cooling  the  crucible  to produce a solid compound.   The preferred powdered solid is pyrolitic boron nitride.  The process may be used to produce, inter alia, semi-insulating gallium arsenide having a neutral EL2 concentration between about 0,85 x  1016cm-3  and about  2,0 x  1016cm-3  and  a dislocation density between about 500 cm-2 and about 7800 cm-2.
Patent CA-2026566-A1 (CA)
Title: Process for producing a chlorine-containing 2-2-difluoropropane
Inventor: MORIKAWA SHINSUKE
IPC: C07C17/10
Filed: 1990-02-01
Abstract: ABSTRACT   A process for producing a chlorine-containing 2,2-difluoropropane of the following formula (2), which comprises chlorinating a 2,2-difluoropropane of the following formula (1):       C3HaClbFc        (1) C3Ha-xClb+xFc      (2) wherein a, b, c and x are integers satisfying the following conditions: a ? 1, b ? O, c ? 2, x ? 1 and a + b + c = 8.
Patent CA-2029063-A1 (CA)
Title: Vapor recovery nozzles and sub-assemblies therefor
Inventor: LEININGER DONALD L
IPC: B67D7/54
Filed: 1990-10-31
Abstract: Abstract of the Disclosure A vapor  recovery nozzle,  employed  in minimizing atmospheric pollution by fuel vapors is described. The nozzle comprises a bellows which is compressed against the fill pipe of a vehicle fuel tank during discharge of fuel therein. The bellows surrounds a nozzle spout to define a vapor return flow path which extends through a nozzle body. The body of the nozzle is compositely formed by a body member and a vapor path cap which compositely define the vapor return flow passage. Flow of fuel is controlled by a control valve which may be opened, or maintained opened, by an operating lever only when a trip mechanism stem is latched in an operative position. A mechanical interlock prevents latching of the trip mechanism stem unless the bellows is compressed in sealing engagement with a fill pipe. When the bellows is so compressed, the trip stem is latched. If the level of fuel in the fill pipe covers the end of the spout, vacuum actuated means unlatch the trip mechanism stem. If the pressure in the vapor return flow path rises to a level indicating a blockage in return flow, the trip stem is also unlatched.          A vapor valve is provided in the bellows to prevent the escape of  fuel vapors when the nozzle is in a rest position. Angular relationships of the bellows and the spout facilitate obtaining a seal with a fill pipe. A groove is formed in the spout outwardly of and adjacent the vapor seal  so that the vapor seal maintains  its integrity in the event the spout is broken when inserted in a fill pipe. A trip mechanism sub assembly, a spout sub-assembly  and  a  bellows  sub-assembly  facilitate rebuilding,  as well as the original assembly,  of the nozzle.
Patent CA-2030010-A1 (CA)
Title: Method for producing raceways particularly in floors
Inventor: COLOMBAN MASSIMO
IPC: E04F15/18
Filed: 1990-11-14
Abstract: ABSTRACT OF THE DISCLOSURE     Method for producing raceways, particularly is floors, including the step of resting at least one shaped structure which defines a plurality of adjacent and parallel raceways on a floor slab preferably with the interposition of a layer of insulating material; further steps include casting a leveling foundation above the structure and covering with flooring.
Patent CA-2034756-A1 (CA)
Inventor: JARJOURA MICHAEL
IPC: E04F11/18
Filed: 1991-01-22
Abstract: A modular construction system for connecting two or more structural members, comprising a universal unit for connection to a first structural member, the unit having at least one planar surface adapted to be oriented in substantially vertical orientation, one or more posts projecting in substantially horizontal orientation from the planar surface, and a pair of finger members defining vertical channels on opposite sides of the one or more posts.  One or more connector units are also provided for removable connection to the universal unit, each of the connector units having a planar flange member adapted to be received in the vertical channels and to rest on the one or more posts, and one or more tongue members connected to the flange unit for receiving one or more additional structural members.
Patent CA-2036525-A1 (CA)
Title: Collapsible stand for stabilizing grocery bags in transit
Inventor: BEAUPRE BERTRAM T
IPC: F16M13/00
Filed: 1991-02-18
Abstract: ABSTRACT OF THE INVENTION:   A base plate and a back plate are pivotally connected by hinge  members  which  snap-fit  together.   A brace  plate  is pivotally  connected  to  the  back  plate  and  is  disposed  in angular relation thereto in its operative position.  A grocery bag may be seated on the upper surface of the base plate, while the lower surface of the base plate is ribbed to prevent the plate from slipping.  The back plate holds the grocery bags in an upright  position,  and  the  brace plate prevents  the back plate from breaking or bending beyond a 90 degree angle.     WCR:73
Patent CA-2038555-A1 (CA)
Inventor: DIEBELS BERNARD P
IPC: B65H27/00
Filed: 1991-03-19
Abstract: ABSTRACT OF THE DISCLOSURE            Method for the manufacture of a roller, and roller thus obtained.            Described is a method for manufacturing light weight roller in which a thin metal roller casing, such as a thin electroformed sleeve, is centred by journals after which inside the roller casing a low density filling is applied. The low density filling may be a sat plastic foam or gas under pressure. In a further embodiment a metal inner roller casing is present which is concentric with an outer roller casing. The space inside the inner casing and the space between the inner casing and the outer casing may be filled with a low density material. Also is described a roller thus obtained having a roller casing of electroformed nickel of a thicknes between 100 and 500 µm.
Patent CA-2040592-A1 (CA)
Title: Thermosetting compositions, thermal latent hydroxyl compounds, thermal latent thiol compounds and methods of preparation thereof
Inventor: ISHIDOYA MASAHIRO
IPC: C08L67/00
Filed: 1991-04-16
Abstract: Thermosetting compositions  are  excellent  in  storage stability,    useful   as   one   component    thermosetting compositions, give cured products having excellent chemical properties,  physical  properties  and  weathering  resistance and  favorably  utilized  in  coating  compositions,   ink, adhesive and molded plastics.      The  thermosetting  compositions  comprise  a  compound having in the molecule two or more hydroxyl groups and/or thiol  groups  blocked by a vinyl  ether  compound,  a  vinyl thioether  compound  or  a  heterocyclic  compound  having  a vinyl type double bond and oxygen or sulfur as the hetero atom,  a  compound  having  two  or  more  reactive  functional groups  which  can  form  a  chemical  bond  with  the  blocked hydroxyl  and/or  thiol  compound  by  heating  and  a  thermal latent acid catalyst,   The  blocked  hydroxyl  and/or  thiol group  of  the  first  compound  and  the  reactive  functional group of the second compound may be comprised  in the same molecule.
Patent CA-2041017-A1 (CA)
Title: Method and apparatus for correcting color in graphic recorders
Inventor: WITTENBERGER JOHN C
IPC: B41J2/525
Filed: 1991-04-23
Abstract: ABSTRACT OF THE DISCLOSURE        A method and apparatus for correcting differences between individual desired shades of color and actual shades of color produced on a recording medium which comprises providing a test pattern of the desired shades of color and recording the test pattern on the medium and then determining differences between the recorded shades and the desired shades with any differences resulting in modification of the system parameters to correct each individual shade of color recorded thereafter.
Patent CA-2041566-A1 (CA)
Title: Lining of metallic pipe
Inventor: WHITE GEORGE
IPC: B29C49/00
Filed: 1991-05-01
Abstract: ABSTRACT OF THE DISCLOSURE        A method of lining of metallic pipe is disclosed. The method comprises forming a plurality of concentric flexible tubes of a thermoplastic polymer, such tubes being capable of being bonded together under the influence of heat and pressure.  The plurality of concentric tubes is inserted into a section of metallic pipe that is to be lined.  The tubes are then heated, especially under pressure e.g. using steam, to cause the tubes to bond together to form a single tube lining the pipe.  Adhesives may be used to facilitate bonding.  The method is particularly useful in the lining of metallic pipe that has bends, loops or the like.
Patent CA-2041767-A1 (CA)
Title: Mine roof anchor assembly having an expansion shell assembly with a friction reducing means
Inventor: FREASE JERRY E
IPC: F16B13/06
Filed: 1991-05-03
Abstract: ABSTRACT            A mechanical expansion shell assembly has an expansion shell with a plurality of leaves and a plug with a plurality of sloped surfaces. m e inner surfaces of the leaves are positioned in overlying relation with the sloped surfaces of the plug.  A friction reducing means is positioned between the overlying surfaces and is arranged to reduce the torque applied to the roof bolt connected to the expansion shell assembly to obtain a preselected lateral force on the expansion shell leaves.   In another embodiment, a friction reducing means is positioned between a nut threaded on the roof bolt and the underside of the expansion shell ring portion.
Patent CA-2043536-A1 (CA)
Inventor: KOMURASAKI TOSHIO
IPC: A61P35/00
Filed: 1991-05-30
Abstract: Novel tumor cell growth inhibitor is a protein which can be obtained from the culture supernatant of 3T3 cell-derived cell line and which has the following properties: (a) molecular weight 3,700 ~ 370 daltons when measured by SDS polyacrylamide gel electrophoresis under reducing and non-reducing conditions; (b) column property the inhibitor is not substantially adsorbed onto an anionic exchange resin column at pH of about 7.4 but is substantially adsorbed onto a cationic exchange resin column at pH of about 5.0 The inhibitor has an inhibitory activity on human promyelogenic leukemia cells and human uterocervical tumor-derived cells and is useful for the treatment of leaukemia or uterus tumor.
Patent CA-2043713-A1 (CA)
Title: Trailers
Inventor: HUTCHINSON RALPH
IPC: B62D21/16
Filed: 1991-05-31
Abstract: ABSTRACT OF THE DISCLOSURE    A dual purpose flat-bed trailer comprising a rectangular horizontal bed or base adapted to receive cargo thereupon and a fluid container below said base and having a substantially rectangular horizontal top integrally formed with said base.  The trailer is of use in the transportation of dry goods such as lumber and chipboard from remote geographical areas and the transportation of liquid such as fuel oil or diesel oil in bulk on the return journey.  This provides for efficient and economical use of the trailer.
Patent CA-2043956-A1 (CA)
Title: Electronic display device having a plurality of pixel elements
Inventor: HUBER TERRENCE D
IPC: G09F9/37
Filed: 1991-06-05
Abstract: ELECTRONIC DISPLAY DEVICE HAVING A PLURALITY OF PIXEL               ELEMENTS                Abstract of the Disclosure A display device including a plurality of pixel elements arranged in matrix form. Each of the pixel elements can be set to one of two alternative states. In the first state, each pixel element includes a portion that transmits light and an adjacent portion that reflects light. In the second, alternate state, each pixel element includes a single portion that is substantially non-reflective. The display device includes a substrate having a plurality of hole disposed therein for respectively receiving a plurality of pixel elements. Each of the pixel elements includes a translucent member adapted to abut against the back side of the substrate and covers one of the holes therein; a mounting bracket adapted to abut against the front side of the substrate and having a fastener extending through the hole of the substrate and connecting to the translucent member for securing the translucent member to the substrate; a flap pivotally secured to the bracket about a pivot axis, one side of the flap having a non-reflective surface and the other side of the flap having a reflective surface, the flap being pivotal from a first position where the non-reflective surface faces outwardly towards a viewer to a second position approximately 180° from the first position where the reflective surface faces outwardly towards a viewer; a magnet disposed on the flap; an electromagnet secured to the back side of the substrate and having a pole piece disposed axially therein and extending into the translucent member; and a source for supplying electric current to the electromagnet so as to alternatively energize the pole piece to be a south pole piece or a north pole piece wherein when the pole pieces are energized to be either a north pole piece or a south pole piece the flap is pivoted to the first position and when the pole pieces are energized to be the other of the north pole piece and the south pole piece the flap is pivoted to the second position.
Patent CA-2044255-A1 (CA)
Title: Digital television standards conversion
Inventor: LYON DAVID
IPC: H04N9/11
Filed: 1990-10-22
Abstract: ABSTRACT      Film originating NTSC video signals are converted to the PAL standard by a process which detects and eliminates duplicate fields.  Video frames corresponding one-for-one with the original film frames are line interpolated to provide a PAL signal with minimal artefacts.  Edits are detected and steps taken to avoid interpolations across a cut.
Patent CA-2044276-A1 (CA)
Inventor: OHTSUJI MASAAKI
IPC: B65G33/16
Filed: 1990-10-25
Abstract: The flexible screw in accordance with the present invention is equipped with a flexible rod and a cord disposed helically on the rod. The screw can be arranged not only in a linear transfer line but also in a curve transfer line. Therefore, it is possible to make container transfer smooth and simplify the construction of a container transfer apparatus, thereby reducing the installation cost. It can also reduce wear of the pipe in the transfer of powder or granules. A container transfer apparatus of the present invention includes an arrangement in which the screws described above, or the screw and a guide, are spaced apart in parallel to transfer containers held between them by rotating the screw. The container transfer thus can be made smoothly even in a curve line.  Moreover, the maintenance cost of the screws can be reduced and wear of rails can be limited considerably, as well. The transfer apparatus for powder and granules in accordance with the present invention can reduce wear of the pipe.
Patent CA-2045583-A1 (CA)
Title: Compositions and methods for treating or preventing aids, arc and hiv infection
Inventor: LETVIN NORMAN A
IPC: A61K39/00
Filed: 1990-01-18
Abstract: This invention relates to vaccines, compositions, and methods useful for the treatment and prevention of acquired immunodeficiency syndrome, AIDS related complex, and HIV infection. More particularly, this invention relates to pharmaceutically effective compositions for treating or preventing AIDS, ARC, and HIV infection that are characterized by an immunologically effective amount of a soluble T4 protein which elicits in a treated patient the formation of antibodies to the soluble T4 protein or, alternatively, the release of other proteins which, in turn, are effective to protect against or to lessen the spread, severity or immunocompromising effects of AIDS, ARC or HIV infection.
Patent CA-2046560-A1 (CA)
Title: Cooled refractory structure and manufacturing process therefor
Inventor: BOURY DIDIER P
IPC: C22C47/06
Filed: 1991-07-09
Abstract: The structure consists of a composite material having a reinforcement texture and a matrix. The composition of the matrix varies practically without discontinuity, in the structure's thickness direction, from an essentially refractory material (13) in the region of the front face intended to be exposed to very high temperatures, up to a material that is essentially heat conductive (16). Cooling fluid circulation conduits (15) can be arranged within the structure at a portion where the matrix is essentially heat conductive.
Patent CA-2049062-A1 (CA)
Title: Inertia switch
Inventor: COOK JOHN E
IPC: H01H35/14
Filed: 1990-03-19
Abstract: An inertia switch for a supplemental inflatable restraint system.  The switch comprises a casing that is divided into two chambers by an axially movable diaphragm. In one embodiment, the diaphragm carries an electrical contact on one face and an inertial mass on the other. A pair of terminals are disposed in the path of travel of the electrical contact so that when the switch is subjected to axial deceleration force the contact is urged toward the terminals. Actual contact is made when the deceleration force equals or exceeds a predetermined deceleration characteristic. The deceleration characteristic is a function not only of the diaphragm, the electrical contact, and the mass, but also of a control orifice located in an orifice that communicates the two chambers with each other. The chambers are constructed such that air is forced from one chamber into another through the control orifice when deceleration occurs and this imparts a dampening to the motion of the diaphragm. Another embodiment for sensing deceleration places the inertial mass in the one chamber that contains the contacts.  The other chamber has a thin concave-convex shape that gives the switch a low profile. The switch has a molded plastic base containing a test coil for attracting the inertial mass to test the switch. A mechanism for calibrating the switch is also included.
Patent CA-2051124-A1 (CA)
Title: Proteins with tnf activity
Inventor: DOERPER THOMAS
IPC: C07K19/00
Filed: 1990-07-20
Abstract: O.Z. 0050/40983 Proteins with TNF action Abstract of the Disclosure Derivatives of tumor necrosis factor (TNF), which are derived from the TNF molecule by an alteration at the amino terminus,  and the preparation thereof are des-cribed.  The  proteins  are  suitable  for  controlling diseases.