baber/WOPTO huggingface dataset:
Patent CA-2060051-A1 (CA)
Title: Precipitation-induced asymmetric transformation of chiral alpha-amino acids and salts thereof
Inventor: BHATTACHARYA APURBA
IPC: C07B57/00
Filed: 1992-01-27
Abstract: ABSTRACT         The  present  invention  provides  a  method  for resolving  a  mixture  of  optically active isomers of an .alpha.-amino  acid to obtain the preferred optically  active isomer.  The mixture of isomers is contacted with at least one chiral resolving agent in an organic acid, which is at least a partial solvent for the .alpha.-amino acid, and in the presence of a mineral acid, which is present in a quantity which  does  not  protonate  the  NH2 functionality of the .alpha.-amino acid to an extent that diastereomer interconversion is substantially  prevented,  and  in  the presence  of  a catalytic amount of an aromatic aldehyde.  The contacting results   in   simultaneous   resolution   of   a   desired diastereomer and interconversion of the remaining undesired diastereomer, to provide a very high yield of the desired diastereomer having a vexy high optical purity.
Patent CA-2060316-A1 (CA)
Title: Method for treating viral infection
Inventor: HERMAN STEPHEN
IPC: A61L2/00
Filed: 1990-06-05
Abstract: Methods of treating systemic viral infections are disclosed comprising the parenteral administration of pharmacologically effective amounts of ozonides of terpenes in pharmaceutically acceptable carriers. Methods for treating viral lesions are also disclosed.  In particular, a method for treating retroviral infections is disclosed. More particularly, a method for treating HIV infections is disclosed. In addition, methods for treating infections of non-retroviral viruses are disclosed. Further, methods for treating T-cell deficencies are also disclosed. Moreover, a method of producing blood for medical products which is free of viral activity is disclosed.
Patent CA-2060781-A1 (CA)
Title: Bidirectional gasket
Inventor: WESTHOFF JAMES A
IPC: F16L5/10
Filed: 1992-02-06
Abstract: A mouldable gasket is provided herein for resiliently supporting a conduit in an opening within a wall and watertightly sealing the space between the wall and the conduit, the gasket having a central axis which intersects a symmetry centreline. The gasket includes an outer annular anchoring portion, so that a symmetry centreline passes through the anchoring portion which is symmetrical about the centreline. The centreline is substantially-perpendicular to the central axis of the gasket. The gasket further includes an annular joining portion having a tapered cross-section extending radially-inwardly from, and integral with, the anchoring portion so that its longitudinal axis is aligned with, and is symmetrical about, the symmetry centreline. The end of the taper is joined to the anchoring portion and has a dimension which is less than that of an end of the taper which is closer to the central axis of the gasket. The gasket further includes an annular skirt portion having an outer end joined to, and integral with, the tapered joining portion, the annular skirt portion having an outer annular portion which is symmetrical to the centreline and having a second inner portion which is aligned diagonally relative to the centreline.  The annular skirt portion is provided with an anti-balloon portion, which is configured to limit the expansion of the gasket due to water pressure which may be applied thereto while at the same time facilitating the flexibility of the skirt. The skirt portion terminates in an enlarged annular-shaped O-ring portion defining an annular central opening in the gasket for receiving the conduit therethrough. Prior to insertion of the conduit, the length of the skirt measured between the tapered portion and the O-ring portion is greater than the distance between the O-ring portion and the tapered portion measured along the symmetry centreline. This enables the skirt to assume either one of two "over-centre"  positions on opposite sides of the symmetry centreline. The O-ring portion is of a size which is configured to embrace and engage an outer periphery of the conduit extending therethrough. This enables the gasket to be moved to either of the two "over-centre" positions by movement of the conduit which is embraced, and engaged, by the O-ring portion.
Patent CA-2063658-A1 (CA)
Title: Cookie with a high cereal content
Inventor: RUSSO CLAUDIO
IPC: A23P30/30
Filed: 1992-03-20
Abstract: A COOKIE WITH A HIGH CEREAL CONTENT                      ABSTRACT            The cookie described  has  an expanded cellular  (foam) structure and includes from 7 to 20% by weight of at least one protein and up to 65% by weight of cereal flakes.   The cookie can be dipped in hot or cold drinks without losing its shape or absorbing too much liquid.
Patent CA-2063668-A1 (CA)
Title: Arrangement in a tape cassette to provide for force-locking relief of the take-up spool
Inventor: MIEHE FRIEDRICH-VIKTOR
IPC: B41J33/52
Filed: 1992-03-20
Abstract: ABSTRACT            A serpentine ribbon guide that is arranged ahead of the take-up spool is provided to relieve the force on the take-up spool of a cassette for an ink or thermal ribbon.
Patent CA-2065379-A1 (CA)
Title: Polyhalodihydrodioxins and polyhalodioxoles
Inventor: KRESPAN CARL G
IPC: C07D319/20
Filed: 1990-08-27
Abstract: This invention is directed to halodihydrodioxins, their preparation and their polymers, which provide amorphous homopolymers that are resistant to ring opening side reactions. The resulting polymers can be used for films and thermally stable molded objects, coatings for substrates such as wood, glass, paper and metal and for protective packaging. This invention also concerns the preparation of polyhalogenated dioxoles.
Patent CA-2065685-A1 (CA)
Title: Ic socket
Inventor: MATSUOKA NORIYUKI
IPC: H01R33/76
Filed: 1992-04-09
Abstract: ABSTRACT OF THE DISCLOSURE    To remove a contact condition between a contact and a lead by moving a movable plate 2 forwardly from a starting point P1 of its forward movement to a terminal point P2 by pivoting clockwise a crank lever, the starting point P1 of the forward pivotal movement of the eccentric shaft portion 3b of the crank shaft portion 3a applying a forward movement force to the movable plate 2 is set to a third quadrant of the coordinates formed about the crank shaft portion 3a.   To move the movable plate 2 forwardly by pivoting counterclock-wise the crank lever, the starting point P1 of the forward pivotal movement of the eccentric shaft portion 3b is set to a fourth quadrant of the coordinates.
Patent CA-2066601-A1 (CA)
Inventor: PIGFORD JAMES F
IPC: F16D69/00
Filed: 1990-08-30
Abstract: The cyclic carbon brake disc overhaul technique comprises the steps of splitting a worn carbon disc (10, 100) into two equal disc halves (16, 116), machining the disc halves (16, 116) to a predetermined axial thickness, and then bonding the disc halves (18, 118) of predetermined thickness to a core member (22, 122). The disc halves (18) may include drive regions (20) at respective ends thereof, or the halves (118) may have the drive regions (112) removed therefrom. The core member (224) may have axially extending drive portions (225) such that the disc halves (118) of reduced radial length define wear grooves (227) with the drive portions (225).
Patent CA-2069621-A1 (CA)
Inventor: GILLHAM ROBERT WINSTON
IPC: B09C1/08
Filed: 1990-11-28
Abstract: Groundwater is contained under highly reducing conditions. The Eh value is brought down to -100 or -200mV, at which the contaminant breaks down, probably by a hydrolysis reaction. The plume of contaminated groundwater (2) is fed through a trench (6) containing a metal such as iron filings (7), which is effective, under strict exclusion of oxygen, and over a period of time, to lower the Eh. Alternatively, the water may be pumped through an enclosed tank containing iron, or other metal, fillings or other high-surface-area form.
Patent CA-2071009-A1 (CA)
Title: Flexible guides for high power signal
Inventor: D ORO ENZO C
IPC: H01P3/14
Filed: 1992-06-11
Abstract: TITLE          FLEXIBLE GUIDES FOR HIGH POWER SIGNAL                         APPLICANT                      FOREM S.p.A.               INVENTORS                    Enzo Cavalieri D'ORO  Giuseppe COLOMBARI                             ABSTRACT    A flexible wave guide to transmit high power microwave signals comprises sections of highly conductive corrugated tubes, with thin walls, preferably of copper or copper alloys, as well as flanges and connectors to the respective ends of the tubular elements having  an  annular  region  outside  the  thin walls,  the  tubes containing a high thermal capacity fluid, preferably mineral water, in stationary contact with the thin walled wave guide.
Patent CA-2072212-A1 (CA)
Title: Container for the spray-dispensing of liquid
Inventor: VON SCHUCKMANN ALFRED
IPC: B05B9/08
Filed: 1992-06-24
Abstract: ABSTRACT OF THE DISCLOSURE     The invention relates to a container (1) for the spray-dispensing of liquid (2), having spray nozzle (D) arranged on the head side of the container (1) and a handle (14) for a pump (P) associated with the container, which pump has pump cylinder (6), piston rod (16) and pump cylinder for the production of a cushion of compressed air above the surface of the liquid (8), and, in order to obtain a structural shape which is free of residual pressure and avoids a springing back of the piston rod (16), it proposes that the pump cylinder (6) at its lower end forms a pressure-relief opening (35) which can be moved over by the sealing surface of a cuff (22) which forms the pump piston, said opening being in flow communication with an outwardly open tube cross section (17) of the piston rod (16) when the pump piston (22) is in depressed position.            Figure 5
Patent CA-2072588-A1 (CA)
Title: Thin-film spectroscopic sensor
Inventor: GOLDMAN DON S
IPC: G01J3/42
Filed: 1990-12-21
Abstract: There is disclosed an integrated spectrometer for chemical analysis by evanescent electromagnetic radiation absorption in a reaction volume. The spectrometer comprises a noninteractive waveguide (7), a substrate (6), an entrance grating (4) and an exit grating (5), an electromagnetic radiation source (1), and an electromagnetic radiation sensing device (2). There is further disclosed a chemical sensor to determine the pressure and concentration of a chemical species in a mixture comprising an interactive waveguide (7), a substrate (6), an entrance grating (4) and an exit grating (5), an electromagnetic radiation source (1), and an electromagnetic radiation sensing device (2).
Patent CA-2072664-A1 (CA)
Title: Oscillating damper and air-swept distributor
Inventor: MORROW ROBERT S
IPC: F23K3/18
Filed: 1992-06-29
Abstract: OSCILLATING DAMPER AND AIR-SWEPT DISTRIBUTOR          ABSTRACT OF THE DISCLOSURE An oscillating damper and air-swept distributor is disclosed for controllably introducing solid fuel into a furnace. The oscillating damper having an oscillating valve member, which oscillates between a first adjustable position and second adjustable position. The air-swept distributor preferably has a pivotably adjustable trajectory plate.
Patent CA-2077921-A1 (CA)
Title: Bioprocess for preparing 7-adca
Inventor: CONDER MICHAEL J
IPC: C12N9/00
Filed: 1992-09-10
Abstract: An important intermediate for preparing cephalosporin antibiotics, 7-aminodesacetoxy cephalosporanic acid (7-ADCA), is prepared by a novel bioprocess in which a transformed Penicillium chrysogenum strain is cultured in the presence of an adipate feedstock to produce adipoyl-6-APA (6-amino penicillanic acid); and the in situ expression of an expandase gene, e.g., from Streptomyces clavuligerus, with which the P. chrysogenum has been transformed, converts the adipoyl-6-APA by ring expansion to adipoyl-7-ADCA.  The final product, 7-ADCA, is then prepared by cleavage of the adipoyl side chain using an adipoyl acylase.  The entire synthesis, accordingly, is carried out using bioprocesses, and is efficient and economical.
Patent CA-2078955-A1 (CA)
Title: Protected conductive foil assemblage and procedure for preparing same using static electrical forces
Inventor: CHAMBERLAIN JAMIE H
IPC: H05K3/02
Filed: 1992-09-23
Abstract: ABSTRACT OF THE DISCLOSURE    A conductive copper foil for use in preparing printed circuit boards is protected from damage during storage, shipment and further processing by covering at least one side of the foil with a sheet of plastic film.  The film is removably joined with the foil as a result of the essential absence of gaseous material between the film and the foil.        Thus,  the film conforms intimately to the contours and shape of the foil surface and clings tightly thereto to permit movement and further processing of the foil with the film adhering tightly thereto.  The absence of air between the film and the foil is produced by oppositely statically electrically charging the film and the foil such that they are forced together sufficiently to squeeze the air out from therebetween.  The film is selected to be sufficiently resistant to laminating temperature and pressure conditions so as to remain in its covering, protecting relationship to the foil and avoid sticking to the laminating press plate and retain its removability from the foil after lamination.
Patent CA-2079230-A1 (CA)
Inventor: MOORE KEVIN W
IPC: C12N15/02
Filed: 1991-03-22
Abstract: A method of treating EBV infections is provided. The method comprises administering an effective amount of an antagonist to the EBV protein, BCRF1. Preferably, the antagonist is a blocking monoclonal antibody specific for BCRF1, or a fragment or binding composition derived therefrom. The invention includes the use of an antagonist to BCRF1, e.g. for the manufacture of a medicament, for the treatment of Epstein-Barr virus disease.
Patent CA-2079528-A1 (CA)
Title: Vacuum operated retrofilling apparatus
Inventor: GROSREY JEAN
IPC: A61C5/50
Filed: 1992-09-30
Abstract: The apparatus comprises a filling nozzle having a conical part so that it can fit in a leaktight manner on to a burred aperture in a tooth to be filled. The nozzle has a suction tube and a first annular channel connected to the suction tube and coming out into the dental cavity in order to create a vacuum therein. A second central channel serves to bring a filling paste from a reservoir to the dental cavity. The cross-section of flow of the first channel is several times smaller than that of the second channel, so that the paste travels much more slowly in the first channel than in the second, under the effect of the partial vacuum in the dental cavity.
Patent CA-2079919-A1 (CA)
Inventor: BENNETT REGINALD S
IPC: B64F1/18
Filed: 1992-10-06
Abstract: The marker has a pair of upwardly converging reflectant planar panels facing approximately in opposite directions.  In its correct attitude on a support surface the panels slope at 2°-6° to the vertical if the marker is intended for assisting the landing of fixed wing aircraft and at 8°-10°   to the vertical if the marker is intended for assisting the landing of helicopters.  The reflectant panels are preferably retroreflectant.
Patent CA-2080972-A1 (CA)
Title: Drawn and ironed container and apparatus and method for forming same
Inventor: JENTZSCH K REED
IPC: B65D1/44
Filed: 1992-10-20
Abstract: ABSTRACT    A drawn and ironed container body is provided having a plurality of alternating inward and outward segments around  the  circumference  of  the  stripper  bulge  and extending through at least a portion of the longitudinal extent of the bulge whereby the minimum column strength of a sampling of such containers is substantially increased.          An apparatus for reforming a drawn and ironed container body is also provided, comprising inner and outer members positionable in opposing relation with each other, with at least a portion of the bulge positioned therebetween, the inner and outer members being capable of radial movement relative to each other to form alternating inward and outward segments around the circumference of the bulge and extending through at least a portion of the longitudinal extent thereof.  In one embodiment, the inner member is a mandrel for supporting container body and secured to a circular turret and the outer member comprises an arcuate member having a rigid plate and a resilient layer for contacting a portion a container body on the mandrel.  As the container simultaneously rotates about its longitudinal axis and revolves around the center axis of the turret, compressive force against the resilient layer forces metal to conform to inward and outward segments in the mandrel.
Patent CA-2081566-A1 (CA)
Title: Pipe coupling system for high temperature/pressure
Inventor: BURKIT JOHN W
IPC: F16L21/02
Filed: 1991-05-10
Abstract: An internal expansion coupling member (12) for use in joining a pair of aligned tubular members (10) in end-to-end relationship.  The coupling member (12) comprises an internal expansion coupling device consisting of a relatively rigid sheet-like member, where the sheet ends (14, 14') overlap such that the end portions lie essentially contiguous with each other. Preferably a compressive seal member (20) is provided between the end portions. Cooperative means (30) are provided between the inside wall of the tubular member and the outer surface of the sheet-like member to fixedly position and retain an O-ring type member (13) therebetween to effect a sealing relationship. Finally, means (60) for expanding the sheet-like member is provided to effect a pressure seal. In a preferred embodiment, a thrust restraint member (96), to prevent separation of the coupling member from a tubular member under conditions of high internal pressure, may be incorporated into the system of this invention.
Patent CA-2082576-A1 (CA)
Title: Goods-handling door having draft-proof raisable curtain
Inventor: KRAEUTLER BERNARD
IPC: E06B3/01
Filed: 1992-11-10
Abstract: A goods-handling door having a raisable curtain for closing a door-bay, the door including two rigid side uprights disposed on either side of the door-bay, each upright including a slideway, the door further including a curtain disposed between the uprights, the vertical edges of the curtain sliding in respective ones of the slideways, each upright including a rigid web that faces said door-bay, each slideway including a vertical slot formed through said rigid web, said vertical slot being delimited by two edges, wherein each slideway further includes a flexible draft-proofing cloth interconnecting its two edges over substantially the entire height of the slot, thereby delimiting a vertical pocket on its side opposite from the door-bay, which pocket is designed to receive an edge of the curtain, said edge bearing flexibly against the bottom of the pocket, which bottom has sufficient clearance to absorb movements and deformations of the edge of the curtain.
Patent CA-2083710-A1 (CA)
Title: Quinolinyl substituted phenyl/thioalkanoic acid substituted propionic acids
Inventor: COUSINS RUSSELL D
IPC: C07D215/12
Filed: 1991-06-14
Abstract: This invention covers quinolinyl substituted phenyl/thioalkanoic acid substituted propionic acids leukotriene inhibitors having general formula (I), where the substituents are defined herein.
Patent CA-2085591-A1 (CA)
Title: Heterocyclic compounds and their preparation and use
Inventor: HANSEN HOLGER C
IPC: A61K31/55
Filed: 1991-06-21
Abstract: New heterocyclic compounds having general formula (I), wherein R3 is (a), or (b), wherein R' is H, C1-6-alkyl or C3-7-cycloalkyl; -B- is -C(R'')=N- or -N=C(R'')-. Or, wherein R'' is a cyclic amine or -NR'''R'''', wherein R''' and R'''' independently are H, C1-6-alkoxy, C3-7-cycloalkyl or C1-6-alkyl. The compounds are useful in psychoparmaceutical preparations as anticonvulsants, anxiolytics, hypnotics and in improving the cognitive function of the brain of mammals.
Patent CA-2085915-A1 (CA)
Title: Tamping tool
Inventor: CROWELL JAMES E
IPC: E01B27/16
Filed: 1992-12-21
Abstract: ABSTRACT     A tamping tool comprising a shank having at its lower end a paddle of hardened steel construction, such paddle having a front face,  and one or more bits of abrasion resistant material secured to the front, exposed face of the paddle and terminating at its or their lower end or ends in a ledge which underlies the lower end of the paddle.          Exposed faces of the paddle and adjacent parts of the shank are covered by abrasion resistant material.
Patent CA-2086229-A1 (CA)
Title: Number theory mapping generator for addressing matrix structures
Inventor: MARWOOD WARREN
IPC: G06F9/345
Filed: 1991-06-27
Abstract: This invention relates to the generation of number theory mappings and their application to the addressing of matrix structures through the provision of an address generator which is optimised for the general task of applying "on the fly" number theory mappings to matrix operands as they are fetched from memory. The address generator (10) comprises a set of six matrix descriptor storage registers (11-16), a finite state machine controller (17), a decrementer (18) for cyclically decrementing a matrix size descriptor (12), an additional decrementer (19) for cyclically decrementing the matrix size descriptor (11), a finite difference engine (20) which adds one of two matrix difference descriptors (13 or 14) to a previously calculated address value obtained from the address register (21), a modulo arithmetic computation unit (22) which computes the residue of the finite difference engine output (20) modulo, the matrix modulo descriptor (15) and an adder (23) which adds an offset value stored as the matrix base descriptor (16) to the output of the modulo arithmetic computation unit (22). The output sequence from the base adder (23) is the desired address generator output.
Patent CA-2086351-A1 (CA)
Inventor: ZECK WALTER M
IPC: A01N63/04
Filed: 1992-12-29
Abstract: A composition for termite treatment composed of an effective amount of (1) a chemical termiticide selected from pyrethroids, pyrazolines, nitroguanidines and nitromethylenes and (2) an entomopathogenic fungus or bacterium preferably a fungus selected from either the Conidiobolus genus or the Paecilomyces genus or the Veauveria genus or the Metarhizium genus. The chemical termiticide is applied at a site where termites have been observed or are suspected to be present.      The fungus or bacterium need not be applied to the site where the termites have been observed if the fungus or bacterium is already present at that site.
Patent CA-2086815-A1 (CA)
Inventor: KATOH HISASHI
IPC: B22D19/00
Filed: 1993-01-06
Abstract: In a cylinder sleeve assembly comprising a plurality of cylinder sleeves whose adjacent cylindrical peripheral walls are coupled to each other, a plurality of sink mark inhibiting projections biting into the cylinder sleeve assembly during casting a cylinder block are provided in each of valley-like areas of an outer peripheral surface of the cylinder sleeve assembly which are located on opposite sides of a coupled portion of the adjacent peripheral walls. Thus, the adhesion between the cylinder barrel assembly and the cylinder sleeve assembly is enhanced. In addition, the adhesion is further enhanced by providing a predetermined inclination to each of the sink mark inhibiting projections.
Patent CA-2087959-A1 (CA)
Title: Circuit and apparatus for recharging storage batteries or electric cells and other specific use thereof
Inventor: BORJA BAIXAULI SALVADOR
IPC: H02J7/00
Filed: 1992-05-22
Abstract: ABSTRACT         The apparatus is comprised of a circuit wherein an alternating current input is connected in series to a lighting lamp or resistor, or other specific use, which produces a residual consumption, and a rectifier or sets of rectifiers which are also connected in series to said circuit and have outputs of direct current switched to the charger, which may also be used as lamp, resistor, etc.,  at the same time as the charge is effected or without the charge being effected.  Application to the recharging of storage batteries in household appliances and/or other electric apparatuses.