baber/WOPTO huggingface dataset:
Patent CA-2026758-A1 (CA)
Title: Optical data storage medium formed of uv-curable resin and process for the production thereof
Inventor: KAWAGUCHI TAKEYUKI
IPC: G11B7/248
Filed: 1990-10-02
Abstract: Abstract of the Disclosure An erasable optical data storage medium and a process for preparation thereof.  The medium comprises a substrate and a dual layer formed on the substrate, the dual layer having characteristic features that:     (A) one layer of the dual layer is a first layer comprising a first resin which exhibits rubbery elasticity at 20°C and a first dyestuff having absorption in a visible light or near infrared ray region;     (B) the other layer of the dual layer is a second layer comprising a second resin which exhibits a glass state at 20°C, exhibits a rubbery state at an elevated temperature and can be reversibly transformed between the glass state and the rubbery state and a second dyestuff having absorption in a visible light or near infrared ray region; and (C) one of the above first resin and the above second resin is a UV curable resin and the other of these two resins is a different UV curable resin or a thermosetting resin.
Patent CA-2031635-A1 (CA)
Title: Oxetane derivatives, their preparation and their use as anti-fungal or fungicidal agents
Inventor: TAKESHIBA HIDEO
IPC: A01P3/00
Filed: 1990-12-06
Abstract: ABSTRACT OF THE DISCLOSURE     Compounds of formula (I):                                                     (I) [in which: R1 and R2 are hydrogen or alkyl, or together are cycloalkyl; R3 and R4 are hydrogen, alkyl or phenyl, or together are cycloalkyl; or R1 and R3 together are cycloalkyl fused to the oxetane ring; Ar is phenyl substituted by R5, R6 and R7, where R5, R6 and R7 are hydrogen, halogen, alkyl, alkoxy, halogenated alkyl or halogenated alkoxy; and R8 and R9 are hydrogen or alkyl] and salts thereof have valuable agricultural and pharmaceutical anti-fungal or fungicidal activity.  They may be prepared by a variety of processes.
Patent CA-2035395-A1 (CA)
Inventor: HOSHINO FUTOSHI
IPC: D21H19/38
Filed: 1991-01-31
Abstract: A cored multi-shell emulsion particle consisting of a core particle, a void layer existing in the exterior of the core particle and a shell layer, each of which has a diameter of .PHI., d and D, respectively, and the ratio of .PHI., d and D is in the following range.          .PHI./D = 0.1 - 0.6 d/D = 0.2 - 0.8 (d > .PHI.) The particle exhibits excellent hiding power, brightness, gloss and thermal insulation property as an organic pigment without impairing drying ability and strength of coated layer.
Patent CA-2036697-A1 (CA)
Title: Salts of acid-containing ab diblock copolymers as charge directors for positive working electrostatic liquid developers
Inventor: EL-SAYED LYLA M
IPC: C08F293/00
Filed: 1991-02-20
Abstract: TITLE SALTS OF ACID-CONTAINING AB DIBLOCK COPOLYMERS AS CHARGE DIRECTORS FOR POSITIVE-WORKING ELECTROSTATIC LIQUID DEVELOPERS               ABSTRACT OF THE INVENTION Positive-working electrostatic liquid developer consisting essentially of (A)  nonpolar liquid having Kauri-butanol value less than 30, present in major amount, (B)  thermoplastic resin particles having an average particle size by area of less than 10 µm, and (C)  an AB diblock copolymer charge director compound as defined.  Optionally a colorant and charge adjuvant are present.  The process of making the electrostatic liquid developer is described.  The electrostatic liquid developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
Patent CA-2039234-A1 (CA)
Inventor: POURTAU JEAN-JACQUES
IPC: E04F15/14
Filed: 1991-03-27
Abstract: IN THE   C A N A D I A N   PATENT & TRADEMARK OFFICE     PATENT APPLICATION entitled: Profiled strip particularly adapted to compen-sate the relative displacements of a floor covering with respect to an adjacent wall and process for manufacturing such a profiled strip in the names of:      Jean-Jacques POURTAU                       Thierry Eric  POURTAU    Assignee : TOMECANIC               ABSTRACT OF THE DISCLOSURE      This invention relates to a profiled strip particu-larly adapted to compensate the relative displacements of surface coverings with respect to the walls, wherein said profiled strip comprises: a generally flat sole plate; two principal limbs which extend from the sole plate, perpendicularly thereto; a bridge for connecting the ends of said principal limbs and two secondary limbs which extend substantially parallel to the sole plate, from the principal limb most remote from the free edge of the sole plate, these two seconda-ry limbs haing substantially equal widths; the sole plate and the principal limbs being made of a hard, semi-rigid material, and the connecting bridge being made of a supple material.     One application of the invention is the production of the zone of connection between a tiled floor and partition.
Patent CA-2043038-A1 (CA)
Inventor: ISHIDA YOSHIHIRO
IPC: G02C7/02
Filed: 1991-05-22
Abstract: ABSTRACT OF THE DISCLOSURE    This invention relates to a lens for presbyopia free from short distance and intermediate distance aberration for use in correcting an old-age eyesight.          In the lens for presbyopia with a front lens face having a smaller radius of curvature than a rear lens face, a lens face has a refractive index successively corrected as the lens face extends radially outwardly away from a geometric center of the lens so that lateral magnifications for all principal rays always equal a lateral magnification for a paraxial range.          This construction is entirely free from distortional aberration, and secures a greatly enlarged range of distinct vision.
Patent CA-2044381-A1 (CA)
Title: Cantilever spring mount for sliding gate valve and method
Inventor: KING PATRICK D
IPC: B22D41/40
Filed: 1991-06-12
Abstract: A method of providing a cantilever spring or a beam which is attached to the frame of a sliding gate valve is disclosed. The apparatus comprises a cantilever spring which is essentially flat and rectangular. A spring mount is provided to anchor the head end of the spring to permit the other end to flex against a load application member or the underneath side of the lower refractory member such as a tube holder and tube. The spring itself has a heel portion and a cantilever portion. At one end of the spring provision is made for a working face which engages the underneath. portion of the lower refractory plate.
Patent CA-2051430-A1 (CA)
Title: Pipe connection, in particular electrically insulation pipe connection, formed by interlocking or interpenetration of material
Inventor: SCHWARZ WALTER
IPC: F16L25/03
Filed: 1991-02-06
Abstract: A pipe connection, in particular an electrically insulating pipe connection, formed by interlocking or interpenetration of material between (a) an overlapping, reinforced plastic pipe which is subdivided  into a number of superimposed pipe shells or pipe layers which have a flange at right angles to the axis of the pipe at their ends and which are advantageously separated from each other and can therefore be deformed independently in the axial direction of the pipe, and (b) at least one pipe, preferably overlapped by the pipe shells or layers and made, in particular, of metal.  The end of the plastic pipe is wound, pressed or cast around the end of the overlapped pipe, and the flanges of the innermost pipe shell or layer hooks onto a shoulder at each end of the overlapped pipe. The end region of the outermost pipe shell or layer may be enclosed by a coupling ring. The flanges (1'-10') of the pipe shells (1-10) or pipe layers abut on each other, possibly via an incorporated ring (20) or ring winding preferably perpendicular to the axis of the pipe. Said ring or ring winding has a projection (21), for example, which is arranged between the adjacent axial surfaces of adjacent pipe shells (7, 8; 9, 10) or pipe layers, but is preferably fixed to only one of these pipe shells (7; 8;  9;10).
Patent CA-2052936-A1 (CA)
Inventor: STEINAR RUDOLPH
IPC: B23B29/034
Filed: 1991-10-07
Abstract: ABSTRACT OF THE DISCLOSURE    A boring head with a longitudinal axis includes a leading cutting portion and a trailing portion. A pair of adjustable work engagement devi??? are releasably occured to the leading portion by individual fasteners. Individual mechanisms for adjusting the position of each of the work engagement devices in a first direction generally parallel to the longitudinal axis of the boring head, and individual mechanisms for adjusting the position of each of the work engagement devices in a second direction, generally transverse to the first direction, are provided. The first and second direction adjusting mechanisms are positioned coaxially of each other in the boring head. Each work engagement device is adjustable in the first and second directions individually and independently of the other.
Patent CA-2052947-A1 (CA)
Inventor: RYU TADAMITSU
IPC: G06F9/44
Filed: 1991-10-08
Abstract: An automatic support tool generating system includes a knowledge acquisition tool for acquiring knowledge from answers received in response to questions generated by the knowledge acquisition tool, and a database for storing the knowledge acquired by the knowledge acquisition tool as data and for forming a knowledge data group, where the knowledge acquisition tool acquires, based on attribute data which are obtained as the answers, a design support knowledge data group used for generating a design support tool which is necessary to make a desired design.  The knowledge acquisition tool includes a general design sequence input processing part for inputting a general design related to mutual relationships of macro attribute data which form the design support knowledge data group, a detailed design sequence input processing part for inputting micro attribute data which form the macro attribute data, a data input/output condition input processing part for inputting input conditions and/or output conditions related to the micro attribute data, and a check condition input processing part for inputting check conditions which are necessary for the desired design by making links among the micro attribute data.
Patent CA-2052982-A1 (CA)
Title: Reverse osmosis process for recovery of c3-c6 aliphatic hydrocarbon from oil
Inventor: LA FRENIERE LUCIE Y
IPC: C10G31/11
Filed: 1991-10-08
Abstract: ABSTRACT OF THE DISCLOSURE           Solvents  comprising  C3, C4,  C5  and   C6 aliphatic  hydrocarbons   (i.e.   propane,   propylene, butane,  butylene,   pentane,  cyclopentane,   pentene, hexane, cyclohexane,  hexene and  their  isomers)  and mixtures thereof, preferably C3 and C4 hydrocarbons and mixtures thereof are recovered from hydrocarbon oils in the liquid phase by  the reverse osmosis permeation  of said  solvent  through  a  polyimide  reverse   osmosis membrane at low temperature.
Patent CA-2053569-A1 (CA)
Title: Galactomannan derivatives for coating or embedding medicinally active susbstances
Inventor: BAUER KURT H
IPC: C08B37/14
Filed: 1991-10-16
Abstract: ABSTRACT OF THE DISCLOSURE            Galactomannans, the hydroxy groups of which are totally or partially present in the form of low molecular weight aliphatic, araliphatic and/or aromatic ether or ester groups and in which 20 to 80% of the mannose units present in the galactomannan chain form connected mannose blocks having 2 to 20 mannose units which are not substituted by galactose groups, for coating and/or embedding solid and/or liquid active substances which only release these active substances in the colon or in the presence of glycolytic enzymes, processes for their preparation and medicaments manufactured using galactomannans of this type.
Patent CA-2055086-A1 (CA)
Title: Cyclopentene derivatives and their use
Inventor: KANEKO CHIKARA
IPC: A61K31/695
Filed: 1991-11-06
Abstract: CYCLOPETENE DERIVATIVES AND THEIR USE   Abstract of the Disclosure A compound of the formula   wherein B is a purine base residue bonded at the ?- position thereof, or a pyrimidine base residue bonded at the 1-position thereof, to the cyclopentene ring; one of R1 and R2 is a hydrogen atom, and the other is a methyl group having an optionally protected hydroxyl group; or a pharmaceutically acceptable salt thereof, which is low in toxicity strongly inhibited the growth of retrovirus or retroidvirus and useful as e.g. antiviral agent.
Patent CA-2055481-A1 (CA)
Inventor: LECLAIRE REMY
IPC: F16H21/14
Filed: 1991-04-11
Abstract: "Dispositif de transmission étanche d'un mouvement de rotation, à soufflet métallique" Dispositif de transmission étanche, à soufflet, notamment pour la commande d'une vanne. Un dispositif selon l'invention comporte une pièce de transfert (32) couplée à la fois à l'arbre de commande (14) et à l'arbre récepteur (20) et à laquelle le soufflet (26), entourant l'arbre récepteur, est raccordé de façon étanche, la pièce de transfert étant elle-même assujettie dans ses déplacements à un élément basculant (42) propre à protéger le soufflet des effets de torsion.
Patent CA-2056757-A1 (CA)
Title: Process for producing regenerated humic acids from coal
Inventor: CALEMMA VINCENZO
IPC: C08H7/00
Filed: 1991-11-28
Abstract: PROCESS FOR PRODUCING REGENERATED HUMIC ACIDS FROM COAL          Abstract A process is described for producing humic acids by coal oxidation effected in the dry phase with oxygen or an oxygen-nitrogen mixture in a fluidized bed reactor using coal of up to 3mm particle size and operating at a temperature of between 150 and 300° C at a partial oxygen feed pressure of between 0.7 and 5 ata, , at a total pressure not exceeding 40 ata and for a contact time of between 30 and 600 minutes, characterised by recycling part of the exit gases from the reactor back to the reactor after cooling them to a temperature of between 50 and 100°C.
Patent CA-2058646-A1 (CA)
Title: Process for the preparation of 5-(2,4-difluorophenyl)-salicylic acid
Inventor: GIORDANO CLAUDIO
IPC: B01J31/12
Filed: 1991-12-31
Abstract: A process for the preparation of 5-(2,4-difluorophenyl)-salicylic acid comprising the reaction of an organometallic derivative with a suitable substituted benzene in the presence of a transition-metal based catalyst is described.
Patent CA-2058828-A1 (CA)
Title: Adjustable flexible back cushion
Inventor: SHIEW-LAN LIOU
IPC: A47C7/46
Filed: 1992-01-06
Abstract: Abstract An adjustable flexible back cushion including a flexible pro-tecting frame, a ventilating mesh, an upper pull belt, a lower pull belt, fasteners and elastic belt, wherein the protecting frame con-tains a flexible metal strip and the left and right sides thereof are curved while the lower portion thereof is bent rearward, and at least two pull belt assemblies each of which is composed of the upper and lower pull belts and the fasteners are dispowed on the protecting frame in vertical direction while the elastic belt is sewn on the protecting frame across over the pull belt assemblies, whereby the back cushion can be adjusted to eliminate a user's backache caused by improper sitting attitued, the back cushion being suitable for a car seat, office chair and general domestic chair.
Patent CA-2060800-A1 (CA)
Inventor: MARTIN PIERRE A
IPC: B62K19/30
Filed: 1992-02-06
Abstract: Le cadre est caractérisé en ce que la membrure haute est liée, d'une part, à la membrure basse par une partie frontale et, d'autre part, aux haubans par une partie de raccordement profilée continue;  le  logement de pivot de fourche avant est formé par une boîte, dite de direction, adaptée par une emboîture sur la partie frontale;  et le logement de tube de selle est délimité par une boîte, dite de selle,  adaptée,  par un  enfourchement,  sur  la partie de raccordement profilée continue.  La présente invention peut être appliquée aux cadres de cycles de compétition.
Patent CA-2061110-A1 (CA)
Inventor: BARBE CHRISTIAN
IPC: A23L3/3418
Filed: 1992-02-12
Abstract: Un gaz sous pression est fourni à un premier compartiment d'un module de séparation à membrane de perméation, le premier mélange gazeux modifié issu du premier compartiment étant introduit dans l'enceinte pour y constituer une atmosphère contrôlée qui est extraite et circulée à contre-courant dans le second compartiment du module vers l'orifice de décharge de ce dernier de façon à recombiner sensiblement les deux mélanges gazeux modifiés avant décharge et augmenter les performances du module de séparation.
Patent CA-2062352-A1 (CA)
Title: Prong-type stacked paper fastener
Inventor: WALKER FRANK J
IPC: B42F13/06
Filed: 1992-03-09
Abstract: ABSTRACT OF THE DISCLOSURE    A prong-type stacked paper fastener comprises a staple component having perforated prongs and a compressor component having tang means designed in the operative position of the fastener  assembly  to  enter  selected  ones  of  the  prong perforations in order to maintain the compressor mounted snugly to the paper stack.   Slide locks mounted on the compressor releasably  lock the prongs  in  a  folded-over, operative  position.    Detents  on  the  slide  locks  engage selected  perforations  of  the staple  prongs,  preventing inadvertent slippage of the slide locks.
Patent CA-2066403-A1 (CA)
Title: Transmucosal dosage form
Inventor: HAGUE BRIAN
IPC: A61K31/465
Filed: 1990-08-03
Abstract: Compositions and methods of manufacture for producing a medicament composition capable of absorption through the mucosal tissues of the mouth, pharynx, and esophagus. The present invention relates to such compositions and methods which are useful in administering lipophilic and nonlipophilic drugs in a dose-to-effect manner such that sufficient drug is administered to produce precisely a desired effect. The invention also relates to manufacturing techniques that enable therapeutic agents to be incorporated into nondissolvable drug containment matrixes which are capable of releasing the drug within a patient's mouth. An appliance or holder is preferably attached to the drug containment matrix. Employing the present invention the drug may be introduced into the patient's bloodstream almost as fast as through injection, and much faster than using the oral administration route, while avoiding the negative aspects of both of these methods. The nondissolvable drug containment matrix may include permeation enhancers to increase the drug absorption by the mucosal tissues of the mouth. The matrix composition may also include pH buffering agents to modify the saliva pH thereby increasing the absorption of the drug through the mucosal tissues.
Patent CA-2067001-A1 (CA)
Title: Low loss, broadband stripline-to-microstrip transition
Inventor: GELLER BERNARD D
IPC: H01Q21/00
Filed: 1992-04-24
Abstract: ABSTRACT OF THE DISCLOSURE In a flat antenna incorporating one or more low-noise amplifier circuits onto a power divider network, a stripline-to-microstrip transition is provided.  The amplifier circuit  is mounted vertically on a block between a ground plane and the radiator level, so that, in the transition, the electric field of the stripline power divider is rotated 900 to the microstrip mode.  A block on which the circuit is mounted forms a connection between the ground plane and the layer of radiating elements which constitutes the other ground plane for the antenna.
Patent CA-2067498-A1 (CA)
Inventor: CARLINO JOSEPH
IPC: A61K38/22
Filed: 1991-09-20
Abstract: CIFs (TGF-.beta.s) are used to induce B cell production in peripheral blood or to induce granulopoiesis.
Patent CA-2070029-A1 (CA)
Title: A convertible chair installation for or in vehicles
Inventor: CHRISTENSEN OLE V
IPC: A47C17/16
Filed: 1992-05-29
Abstract: In so-called "ski-coaches", special chairs are used, the backrests of which can be swung up to form an upper row of bed elements, while the seat portions are completed with fill-in elements so as to form a lower row of bed elements.      Usually the backrests are of a design such that the chairs are unusable as normal coach chairs during the entire period outside the skiing season, and it is customary, therefore, to change out the entire seat installation before and after this season. According to the invention, the chairs are designed so that they will be universally usable, i.e. by way of a conventional front side profile and by an upper carrier element mounted inside the backrest, whereby the rear side of the backrest will not exhibit a visual sleeping fitting. The carrier element is located spaced underneath the top end of the backrest, whereby the sides of the uppermost portion of the backrest may be designed in an attractive, upwardly-converging manner.
Patent CA-2070988-A1 (CA)
Title: Drive chassis for a magnetic tape recorder
Inventor: WEISSER FRITZ
IPC: G11B5/56
Filed: 1990-12-05
Abstract: A drive chassis has a rotating head drum around which a magnetic tape can be looped and a magnetic head or combined head for reproducing and/or recording signals in the longitudinal track of the magnetic tape arranged between the head drum and the tape drive shaft.  A holding device for the magnetic head is constructed so that, on the one hand, it can be easily mounted on the drive chassis and, on the other hand, the magnetic head can be adjusted simply in relation to the position of the magnetic tape above the drive chassis.  The magnetic head (H) or combined head (H) is fastened to a carrier plate (1) which can be elastically adjusted above the drive chassis (8) and which can be elastically deflected by adjusting means in order to adjust the azimuthal position and the angle of inclination of the magnetic head (H) for the tape/head contact.  Holding device for stationary magnetic heads or combined heads, in particular for video and digital audiotape recorders.
Patent CA-2072890-A1 (CA)
Title: Improved efficiency screen plate for screening pulp
Inventor: GERO WILLIAM A
IPC: B03B5/00
Filed: 1990-12-05
Abstract: An improved efficiency screen plate (10) for screening pulp in a pressure screening apparatus (8) is disclosed wherein var-ious design parameters are established which increase screen performance, particularly in screening medium consistency pulp. The basket is formed of thin, sheet-like material formed without machining into an undulating pattern. Undulation frequencies, slot location, turbulence bar frequency, and turbulence bar height are established for increasing screen performance.
Patent CA-2073014-A1 (CA)
Title: Process for extracting minor fatty compounds from a substance of biological origin
Inventor: MENTINK LEON
IPC: A23L5/20
Filed: 1991-09-04
Abstract: ABSTRACT           A method for extracting minor fatty compounds, particularly steroids. from biological matter by means of cyclodextrin.  According to the method, the cyclodextrin is  stirred  into  said  biological  matter  in  a  water-containing reaction medium to allow the formation of inclusion complexes between the cyclodextrin and the minor fatty compounds, whereafter said complexes are separated from said matter,  the amount  of water present  in the reaction medium being lower than 100% wt. in relation to the dry matter to be treated.   The temperature of the reaction medium and the amount of water present therein are such that the cyclodextrin is parially undissolved.
Patent CA-2073885-A1 (CA)
Title: Laser semi-conducteur a double canal et son procede de realisation
Inventor: BRILLOUET FRANCOIS
IPC: H01S5/227
Filed: 1992-07-15
Abstract: Le courant d'alimentation d'un laser à phosphure d'indium ou arséniure de gallium est confiné dans un ruban laser (14A) par deux moyens. Un moyen de blocage de courant rapproché est constitué par une jonction bloquante (JB) formée dans deux canaux latéraux (CL) délimitant ce ruban. Un moyen de blocage de courant éloigné est constitué par une couche semi-isolante (24) dopée au fer et déposée épitaxialement avant la gravure des canaux latéraux.     L'invention s'applique notamment à la réalisation des lasers de pompage utilisés dans les amplificateurs optiques des liaisons à fibres optiques.