baber/WOPTO huggingface dataset:
Patent CA-2061860-A1 (CA)
Inventor: ASSELINEAU LIONEL
IPC: C07C7/08
Filed: 1992-02-26
Abstract: On décrit un procédé de séparation de butanes et de butènes par distillation extractive. Une charge contenant principalement des butanes et des butènes est mise en contact dans une colonne de distillation extractive sous pression avec un solvant polaire (par exemple le diméthylformamide), les butanes étant recueillis en tète; le solvant contenant les butènes passe dans une deuxième colonne sous pression, ou les butènes sont partiellement désorbés et recueillis en téte, le solvant renfermant encore des butènes est purifié dans une troisième colonne sous pression atmosphérique dont le distillat vapeur qui contient du solvant, est renvoyé, après compression, à la partie inférieure de la deuxième colonne.
Patent CA-2064444-A1 (CA)
Inventor: BARTLEY WILLIAM J
IPC: C07C69/15
Filed: 1992-03-30
Abstract: A shell impregnated catalyst for use in the production of vinyl acetate from ethylene, acetic acid and an oxygen containing gas is provided. The catalyst has a productivity of greater than 661 grams of vinyl acetate per hour per litre of catalyst at 150°C and consists essentially of: (1) a catalyst support having a particle diameter from about 3 to about 7mm and a pore volume of 0.2 to 1.5 ml per gram (2) palladium and gold distributed in the outermost 1.0 mm thick layer of the catalyst support particles, and (3) from about 3.5 to 9.5% by weight of potassium acetate.      The catalyst is characterised by having a gold to palladium weight ratio in the range 0.60 to 1.25.
Patent CA-2064829-A1 (CA)
Title: Multivalent antigen-binding proteins
Inventor: KING DAVID J
IPC: C07K19/00
Filed: 1991-06-11
Abstract: A multivalent antigen-binding protein comprises a first Fv fragment bound to at least one further Fv fragment by a connecting structure which links the Fv fragments to each other but which maintains them spaced apart such that the protein is capable of binding to adjacent antigenic determinants. Typically the connecting structure comprises a spacing polypeptide sequence, which may be about 3 to 16 amino acids in length, connected to a linkage unit which may be a synthetic chemical linker, e.g. a maleimide linker, or is a polypeptide sequence leading from the spacing sequence. In a particularly preferred embodiment the multivalent antigen binding protein comprises a VH domain having attached to its C-terminal end a V-C joining sequence and an antibody hinge sequence.  Preferably one or more of the Fv fragments is a single chain Fv (scFv). The proteins are preferably prepared by recombinant DNA  techniques and are useful for in vivo therapeutic and especially diagnostic applications.
Patent CA-2065238-A1 (CA)
Inventor: NEU STEVEN B
IPC: E04C2/38
Filed: 1990-09-03
Abstract: Reinforced concrete building products are manufactured using a two-part mould (2, 3), the two parts being hinged together about an axis (4) which is adjacent an edge of each part-mould (2, 3).  Glass-reinforced concrete is applied to each part-mould (2, 3), then allowed to partly dry before the part-moulds (2, 3) are folded together to produce a finished product.
Patent CA-2068528-A1 (CA)
Title: Non-gray scale anti-aliasing method for laser printers
Inventor: GILBERT JOHN M
IPC: B41J2/52
Filed: 1990-11-08
Abstract: A non-gray scale anti-aliasing method for smoothing the horizontal components of the edges of an image to be printed by a laser printer having unequal pixel resolutions in the horizontal and vertical dimensions is accomplished by selectively modifying the on and off states of pixels on either side of each vertical transition point along the horizontal components of raster lines representing the edges of the pixel representation of the image. A  processor is provided with an ideal outline of the image and rasterizes the ideal outline of the image to determine which pixels to turn on and which pixels to turn off in a frame buffer that stores a pixel representation of the image to be printed by the laser printer. The modified pixel representation in the frame buffer is then communicated to the laser printer such that the laser printer may print the smoothed image.
Patent CA-2071967-A1 (CA)
Title: Controlled system and method for sorting plastic items
Inventor: MCCOURT CARROLL T
IPC: G06T1/00
Filed: 1991-10-15
Abstract: Disclosed is a computer-controlled system (100) and method for separating and sorting plastic items. The computer-controlled system first comprises a first component (106) for separating, singulating and orientating the plastic items, a second component (122) for identifying the composition of the plastic material, a third component (114) for identifying the color of the plastic material and a fourth component (118) responsive to the first and second component for distributing the plastic material to a specific collection vessel. The method of the present invention comprises a first step (106) of separating, singulating and orientating the plastic items. The second step (122) of the method of the present invention is to determine the composition of the plastic item. The third step (114) of the method of the present invention is to determine the color of each plastic item. The fourth step (118) of the method of the present invention is to discharge each plastic item to an appropriate collection vessel based on the plastic item's color and composition.
Patent CA-2072137-A1 (CA)
Inventor: CATON ANDRE
IPC: B65D71/70
Filed: 1990-10-26
Abstract: 2072137 9106487 PCTABS00105 Conditionnement de bouteilles en lits superposés. L'invention concerne un plateau intercalaire, du type comprenant une plaque munie d'orifices destinés au centrage des cols (3) d'un lit de bouteilles (8) et des bossages (5) s'étendant à partir de la face supérieure de la plaque pour assurer le centrage des culots (4) d'un lit superposé de bouteilles, caractérisé en ce que chaque orifice est délimité, d'une part, par au moins deux saillies (12) présentées par la plaque pour venir en appui sur l'épaulement (23) de la bouteille et, d'autre part, d'une coiffe (11) d'une hauteur adaptée pour envelopper le col (3) de la bouteille, lorsque les saillies (12) se trouvent en appui sur l'épaulement de la bouteille.
Patent CA-2073046-A1 (CA)
Title: Imidazoquinoxaline compounds, their preparation and use
Inventor: WAETJEN FRANK
IPC: A61K31/495
Filed: 1990-11-22
Abstract: New imidazoquinoxaline compounds having general formula (I), wherein Q is (a), wherein R1 and R2 independently are hydrogen, straight or branched C1-6-alkyl, or C3-7-cycloalkyl; R3 is hydrogen, straight or branched C1-6-alkyl, straight or branched C2-6-alkenyl, or aralkyl or aroylalkyl which may optionally be substituted with halogen or C1-6-alkoxy; R4 and R5 independently are hydrogen, halogen, C1-6-alkyl or trifluoromethyl. The compounds are useful in phychopharmaceutical preparations as anticonvulsants, anxiolytics, hypnotics and in improving the cognitive function of the brain of mammals.
Patent CA-2075787-A1 (CA)
Inventor: AKIMOTO HIROSHI
IPC: C07D491/048
Filed: 1992-08-11
Abstract: Condensed Pyrimidine Derivatives, Their Production and Use Abstract of the Disclosure A condensed pyrimidine derivative of the formula (I):                                 (I) wherein the ring A stands for an optionally substituted 5-membered ring; B stands for an optionally substituted divalent 5- or 6-membered homo- or hetero-cyclic group; X stands for, among others, amino group; Y stands for, among others, hydrogen atom, halogen atom or amino group; Z stands for a divalent aliphatic group having five or less atoms forming straight chain, optionally having nitrogen, whose chain portion may optionally have a hetero-atom; W stands for, among others, -NH-CO-or -CO-NH-; R1 stands for an optionally substituted cyclic or chain-like group ; COOR2 stands for an optionally esterified carboxyl group; and p denotes an integer of 1 to 4, provided that when -W-R1 denotes a moiety represented by the formula:        wherein COOR16 and COOR17 are, independently, an optionally esterified carboxyl group and n denotes an integer of 1 to 5, p denotes 1, 3 or 4, or a salt thereof, exhibiting highly specific toxicities to various tumor cells and excellent therapeutic effects on methotrexate-resistant tumor cells as well.
Patent CA-2078705-A1 (CA)
Inventor: ICHIYOSHI OSAMU
IPC: H04L27/22
Filed: 1992-09-21
Abstract: In order to coherently demodulate an incoming multi-phase PSK analog signal irrespective of large frequency deviation, an automatic frequency feedback loop is provided.  An analog baseband signal is generated by multiplying the IF analog signal by a local signal and then is converted into the corresponding digital baseband signal.  A multiplier multiplies the digital baseband signal by another local signal.  The output of the multiplier is further multiplied and then applied to a plurality of single-tuned filters which are arranged in parallel and have tuning frequencies each different from an adjacent frequency by a predetermined frequency interval.  Each of the plurality of single-tuned filters generates a signal for use in carrier recovery, a frequency error signal and a correlation coefficient. Subsequently, one of the plurality of single-tuned filters is selected in a manner wherein the maximum value is detected among the correlation coefficients.  The another local signal is generated using the frequency error signal of the single-tuned filter which has been selected.  A modulating signal is reproduced using the recovered carrier in a conventional manner.
Patent CA-2078783-A1 (CA)
Title: Molecular cloning of the genes responsible for collagenase production from clostridium histolyticum
Inventor: LIN HUN-CHI
IPC: C12N1/21
Filed: 1991-03-22
Abstract: Genetically engineered E. coli carry vectors containing inserts that code for Clostridium histolyticum collagenase. These inserts code for: (a) a form of collagenase having a molecular weight of about 68,000 daltons in the essential absence of larger forms of collagenase; (b) the 68 kd form of collagenase and a fusion polypeptide consisting of the collagenase protein fused to at least a portion of the .beta.-galactosidase protein of E.  coli); or (c) the 68 kd form of collagenase and polypeptides of molecular weight of from above about 68,000 daltons to about 100,000 daltons and having the enzymatic activity of C. histolyticum collagenase as indicated by digestion of 3H-acetylated collagen and by specific inhibition by 1,10-phenanthroline plus EDTA. The collagenase genes in the transformed E. coli are expressed efficiently in the transformed cells to yield enzymatically active and immunologically cross-reactive collagenase. In particular, the 68 kd form of collagenase is resistant to autocatalytic degradation and is stable to long-term storage. Genetically engineered collagenase, especially the 68 kd form that is resistant to autocatalytic degradation, can be used for isolation of pancreatic islets, for the isolation of dispersed tumor cells, or for treatment of ''slipped disc''.
Patent CA-2079475-A1 (CA)
Inventor: COOK ANDREW R J
IPC: H04N7/32
Filed: 1991-04-10
Abstract: In a method of aligning a data receiver (2) with a data transmission from, e.g., a head-end station (1), data is encoded for transmission with a hybrid differential coding scheme including at least one invalid codeword, and the coding scheme for the differential part of the codewords includes the invalid codeword(s) used for word alignment of the receiver (2). At the receiver (2) the data is detected in phase with a local clock. The phase of the local clock is modified in response to any occurrence in the detected data of an invalid codeword.
Patent CA-2079524-A1 (CA)
Title: A spread and a method for production of said spread
Inventor: TOMITA MAMORU
IPC: A23D7/015
Filed: 1992-09-30
Abstract: The present invention provides a method for production of a spread, comprising the steps of:          (a) two aqueous phases with different particle sizes in a fatty phase, of which at least one aqueous phase is dispersed into the fatty phase through a microporous membrane, to prepare a mixed water-in-oil type emulsion;          (b) rapidly cooling the emulsion to plasticize;and (c) kneading the plasticized emulsion.     According to the present invention, it is possible to produce a low-fat spread having good taste easily, which does not require a stabilizer or a gelling agent, is excellent in stability and preservativity on a level never achieved by any conventional methods.
Patent CA-2080058-A1 (CA)
Inventor: WALKER GEORGE E
IPC: D05C15/06
Filed: 1992-10-07
Abstract: ABSTRACT          An adjustable needle-craft implement comprises an elongated graspable barrel having a longitudinally extending bore communicating between opposed ends of the barrel.  The barrel includes a longitudinally extending plurality of mutually spaced apart transverse slots communicating with said bore's interior and form a barrel indexing rack.  An elongated hollow cylinder supports a hollow tubular needle at one end thereof.  The cylinder has a resiliently mounted cylinder indexing rack with transversely extending processes thereof that are adapted to be engagable in selective axial register with corresponding ones of the transverse slots in the barrel indexing rack.  The cylinder is adapted to be received internally of the bore, in releasably lockable, longitudinally slidable relation therewith.  The cylinder indexing rack is normally biased into releasable, selectively adjustable, mutually interfering axial register with an adjacently aligned portion of the barrel rack to thereby secure the cylinder and the barrel in mutually interlocked relation.  The cylinder indexing rack is selectively operable against the bias, to disengage the inter-engaged cylinder and barrel racks to thereby enable selective longitudinal sliding adjustment of the mutually relative positioning of the cylinder and the barrel.  In this way, the implement is adapted to adjustably position ones of selected portions of the needle's length beyond an adjacent end of the barrel, corresponding to selected ones of a predetermined plurality of relative positions of the barrel and the cylinder.
Patent CA-2080541-A1 (CA)
Title: Preparation and the use of halopropargylated cyclic quaternary ammonium compounds as antimicrobial agents
Inventor: HSU ADAM C-T
IPC: A01N33/12
Filed: 1992-10-14
Abstract: ABSTRACT OF THE DISCLOSURE        Antimicrobial compounds of the formula   (I) wherein R is selected from (C1 to C20) straight or branched alkyl, optionally substituted with hydroxy, halogen, alkoxy, phenoxy, or -C(=O)R wherein R' is selected from (C1-C20)alkyl, (C1-C20)alkoxy, phenox phenyl; benzyl; phenethyl; cyanoethyl; 2-cyanoethyl; propargyl; and allyl;       X = halogen (chlorine, bromine, or iodine), phosphate, acetate, benzoate, citrate, tartrate, alkyl- or aryl-sulfonate, alkylsulfate; and   represents a 3- to 7-membered ring that contains at least one nitrogen atom or addition to said one nitrogen atom,    selected from sulfur, oxygen, and a second nitrogen; are disclosed. Processes for inhibiting microbial growth, and compositions suitable therefore are also disclosed.
Patent CA-2086364-A1 (CA)
Title: 2-(tetrazol-5-yl)-1,1'-biphenyl derivatives, their preparation and their use as synthetic intermediates
Inventor: DAUMAS MARC
IPC: C07D257/04
Filed: 1992-12-29
Abstract: ABSTRACT     Compounds corresponding to the formula (I)                        (I) in which X represents dibromomethyl, formyl, (C1-4)alkyl, or a group CH(OR5)2 or CH(OH)OR5, wherein the or each R5 is hydrogen (C1-3) alkyl or the two R5's in the case of CH(OR5)2 are linked to provide a 1,3-dioxolane or 1,3-dioxane ring, and Y represents hydrogen, 1,1-dimethylethyl, triphenylmethyl, trimethylstannyl, tributylstannyl, (1,1-dimethylethyl)dimethylsilyl, (1,1-dimethylethyl)diphenylsilyl, 2-cyanoethyl, or a group CH2OR6 wherein R6 is methyl, phenylmethyl, 1,1-dimethylethyl, 2,2,2-trichloroethyl, benzyloxycarbonyl or 2,2,2-trichloroethyloxycarbonyl, Y being in position 1 or 2 on the tetrazole ring.  The compounds of formula (I) are useful as intermediates in the synthesis of compounds possessing therapeutic activity.
Patent CA-2087034-A1 (CA)
Inventor: GOLDSTEIN MARK
IPC: G06F3/02
Filed: 1991-07-08
Abstract: The invention relates to a keyboard (1) to be used for example at a computer terminal. The preferred embodiment comprises a keyboard (1) having mounted thereon a number of keys (5), the keyboard being formed in at least two segments (2, 3) which are mutually detachable and/or pivotable and wherein each of the segments (2, 3) of the keyboard (1) has mounted thereon some of the keys (5). The pivoting/detachable nature of the keyboard aims at reducing stress and discomfort to the user by eliminating contortion to the operators wrists. More particularly, discomfort to the user caused by pronation of the wrists and/or supination of the wrists is reduced.
Patent CA-2090403-A1 (CA)
Title: Razor
Inventor: JACOBSON FREDERICK
IPC: B26B21/16
Filed: 1991-09-16
Abstract: A razor having a base member (12), spring fingers extending from the base member, a plurality of razor blades (16), each of the razor blades (16) having a generally tubular wall (18) defining a central aperture (20), each of the razor blades (16) having an integrally formed flange (32) on a first end (24) of the tubular wall (18), a free edge of each of the flanges comprising an annular cutting edge (28), a second end (32) of the tubular wall (18) having therein a plurality of the spring fingers (14) extending into the aperture (20), such that the spring fingers (14) within the tubular walls (18) permit multi-directional movement of the razor blades (16) responsive to pressures encountered during shaving operations.
Patent CA-2090630-A1 (CA)
Title: Ejector pull away system and apparatus
Inventor: NIMBERGER SPENCE M
IPC: F16K13/00
Filed: 1993-03-01
Abstract: ABSTRACT The invention is directed to a safety release disconnection for a fluid conduit. The connection includes a pin and a U-shaped slot with an ejector spring adjustably biased by a loading nut. Check valves are provided in both connection elements and are opened by contact or interfacing of the valves. A rigid moment arm points in a direction perpendicular to the direction that a vehicle pulls away from the filling stand. A pull away while the system is connected to the vehicle will trigger the safety release disconnection.
Patent CA-2093806-A1 (CA)
Title: Method of treating or preventing type 1 diabetes by oral administration of insulin
Inventor: WEINER HOWARD L
IPC: A61K38/095
Filed: 1991-10-10
Abstract: Disclosed herein are methods for treating or preventing a disease in mammals having the characteristics of Type I diabetes comprising administering insulin or disease suppressive fragments of insulin or analogs thereof in oral or aerosol dosage forms to said mammals. Also disclosed herein are pharmaceutical formulation or dosage forms for use in the methods.
Patent CA-2094246-A1 (CA)
Title: 4-(1,2-benzisoxazolyl) piperidine antipsychotic agents
Inventor: HOWARD HARRY RALPH JR
IPC: A61K31/445
Filed: 1991-08-16
Abstract: Certain 1-substituted 4-(1,2-benzisoxazolyl)piperidine compounds exhibit neuroleptic activity and are useful in the treatment of psychosis and anxiety.
Patent CA-2094976-A1 (CA)
Title: Web stacker and separator
Inventor: CROWLEY H W
IPC: B26D7/32
Filed: 1993-04-27
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus for stacking and separating sheets of web material provides a conveyor fox transporting the sheets from a source of sheets.  The sheets are conveyed in a stream that is aligned in a downstream direction from a source to a stacking location.  A kicker mechanism is located along the conveyor to offset sheets in a direction that is substantially transverse to the downstream direction.  A stacking mechanism is positioned at the stacking location for receiving each sheet from the conveyor and overlaying each sheet into a stack that extends downstream in a horizontal orientation that is substantially parallel to the ground.  The kicker mechanism may include an elastomeric foot that engages and withdraws from each selected sheet to drive it transversely to the downstream direction.  The sheets may be cut from a continuous web source.
Patent CA-2097402-A1 (CA)
Inventor: FORD JAMES J
IPC: F16B37/04
Filed: 1993-05-31
Abstract: ABSTRACT    A nut plate fastener retains a screw inserted through an aperture formed in a panel.  A double-sided adhesive tape may be adhered to one face of the fastener to mount in the panel aperture.  The nut plate fastener consists of an integral member and includes a bottom plate with a cone-shaped ring-liked raised screw impression to receive and retain a screw, and a top plate portion connected to the bottom plate.  The screw when in the fastened position is confined between the top and bottom plates as to be isolated from objects contained within the panel and adjacent the nut plate fastener. Three tabs project from the bottom face of the bottom plate and project through the tape which centers the fastener in the panel aperture.
Patent CA-2097562-A1 (CA)
Inventor: REDMAN RONALD E
IPC: E05D7/00
Filed: 1993-06-02
Abstract: An improved adjustable center door pivot assembly is disclosed which can be mounted to a threshold without the need for a separate mounting bracket. The adjustable center pivot assembly permits the height of the pivot spindle to be adjusted without removing the door. Further, the height of the adjustable center pivot assembly which projects above the threshold is sufficiently short that the pivot assembly can be used with a standard door having a standard 21/32" web.
Patent CA-2098165-A1 (CA)
Title: Inhibitors of hiv protease useful for the treatment of aids
Inventor: HORNBACK WILLIAM J
IPC: C07D303/36
Filed: 1993-06-10
Abstract: Abstract The present invention provides novel HIV protease inhibitors, pharmaceutical formulations containing those compounds and methods of their use.
Patent CA-2099730-A1 (CA)
Title: Orthodontic bracket
Inventor: PLETCHER ERWIN C
IPC: A61C7/26
Filed: 1993-06-29
Abstract: ORTHODONTIC BRACKET            Abstract of the Disclosure A self-locking orthodontic bracket having a body with an archwire slot, and a locking slide member which is movable to open and close the slot.  Archwire retention is provided by the slide member without use of conventional ligatures or tie wires.  A detent system is provided to retain the slide member in either the open or closed position,  while preventing excessive sliding movement which could disengage the slide member from the bracket body.
Patent CA-2100398-A1 (CA)
Inventor: REDDEN JAMES P
IPC: H04W88/02
Filed: 1993-07-13
Abstract: A radio subscriber communication unit (14) maintains an annunciation memory (60, 126) which stores a repertoire of annunciations. When the subscriber unit (14) receives annunciation data messages from a communication network (10), a particular one of the annunciations is selected and presented to the user of the subscriber unit (14). An audible segment (134) of the annunciation is passed through a vocoder (62), amplified (64), and routed to a speaker (66) for presentation to the user. When annunciations are repeated (148), a second message may be received to instruct subscriber unit 14 to cease (150) presenting an annunciation. <IMAGE>