baber/WOPTO huggingface dataset:
Patent CA-2001897-A1 (CA)
Inventor: PERRINE SUSAN P
IPC: G01N33/72
Filed: 1989-10-31
Abstract: ABSTRACT OF THE DISCLOSURE            A method is provided for inhibiting the r-globin to .beta.-globin switching in subjects afflicted with .beta.-globin disorders.  The method is particularly adapted for ameliorating the clinical symptoms of sickle cell disease or .beta.-thalassemias by periodically introducing into the subject prior to natural completion of the switching process activin, inhibin, an inhibin chain or mixtures thereof.
Patent CA-2011052-A1 (CA)
Inventor: O'BRIEN KAREN M
IPC: B42F21/06
Filed: 1990-02-27
Abstract: An index tab and assemblages thereof to be used in conjunction with hanging file folders and the like, in lieu of individual plastic tab holder and paper insert combinations of the prior art.  In the preferred embodiment, a plurality of flexible paper or plastic tabs, backed by pressure-sensitive adhesive, are carried on a release sheet, comprising tab stock.  Each such tab includes opposing bilaterally symmetric sections, each section comprising a message portion and a base portion.  The shape of each half of such tabs may be generally similar to the clear individual plastic tab holders of the prior art.  A message is placed on the message portion of either or both halves of a tab.  The tab is then peeled from the release paper and the two adhesive-backed opposing halves folded together.  In this configuration the base portion may be inserted into the tab slots of a file folder.  In lieu of mounting adhesive-backed tabs to a release sheet, the tabs may be interconnected by lands, or may be defined by score lines or perforations.  In these variations, the adhesive may be omitted, and a single tab may be provided rather than bilaterally symmetric tabs wherein messages are inscribed on opposite faces of the tab before severing from the tab stock.
Patent CA-2011431-A1 (CA)
Title: Low cost wet-to-wet pressure sensor package
Inventor: LAM MAN K
IPC: H01H35/26
Filed: 1990-03-05
Abstract: A wet-to-wet pressure sensor package having a housing with a pressure sensitive semiconductor die supported within a resilient mounting including continuous beads of elastomeric adhesive on the same portion of the housing to provide a protective seal with less stress so that improved sensitivity and repeatability of the wet-to-wet pressure sensor is achieved.
Patent CA-2015480-A1 (CA)
IPC: G02B6/30
Filed: 1990-04-26
Abstract: AN OPTICAL INTERCONNECT ARRANGEMENT Abstract An arrangement for butt coupling of waveguide electrooptic plates to form a crossbar switch. The arrangement includes a stack of M splitter plates, each of which routes an injected optical signal to one of N outputs, and a stack of Ncombiner plates, each of which routes the signal of a selected one of M inputs to a common output. The stack of splitter plates is rotated with respect to the stack of combiner plates and the output signal ports of the splitter plates are coupled to the input signal ports of the combiner plates, so that each output of an splitter plate is connected to a different combiner plate. Within each splitter plate there is a fan-out network of waveguide electrooptic couplers and each coupler, under electric control, routes signals from one input to either one of two outputs. With j levels of such interconnected couplers 2j output are developed. The combiner plates have an identical architecture but with a signal flow in the reverse direction. Butt coupling of the splitter and combiner plates is achieved by employing splitter and combiner plates of a different crystal cut, by interposing polarization rotation means between the two stacks, or by including polarization rotation means within the splitter plates, the combiner plates, or both.
Patent CA-2016665-A1 (CA)
Inventor: INOUE HITOSHI
IPC: C07D417/12
Filed: 1990-05-14
Abstract: Disclosed is a rhodanine derivative of formula (I).      A rhodanine derivative of formula (I) (see formula I) wherein R1 is hydrogen, C1-C8 alkyl, carboxyl(C1-C4)alkyl or (C1-C4)alkoxycarbonyl(C1-C4)alkyl;      R2 is -CH2-CH2-R3, ~CH=CH~R3 (m is 0 or 1), (see formula II) (R is C1-C3 alkyl) or ~CH2~CONHR4 (n is 0 or 1-4);      R3 is a thienyl or furyl group which may be substituted by C1-C3 alkyl or halogen; a pyrrolyl group which may be substituted by carboxy(C1-C3)alkyl on the nitrogen atom; or a phenyl group which may be substituted by one or more substituents selected from the group consisting of C1-C3 alkyl, C1-C3 alkoxy, hydroxyl, halogen, trifluoromethyl, carboxyl, (C1-C3)alkoxycarbonyl, cyano, carboxy(C1-C3)alkoxy, (C1-C6)alkoxycarbonyl(C1-C3)alkoxy, benzyloxycarbonyl(C1-C3)alkoxy, piperidinylcarbonyl(C1-C3)alkoxy, 2H-tetrazolyl, 2H-tetrazolyl-(C1-C4)alkoxy, carboxy(C2-C4)alkenyl, (C1-C3)alkoxycarbonyl(C2-C4)alkenyl, carboxy(C1-C3)alkyl and (C1-C3)alkoxycarbonyl(C1-C3)alkyl; and R4 is a phenyl group which may be substituted by one or more of the same substituents as defined above, or a pharmaceutically acceptable salt thereof.      The derivatives are of an inhibitory activity against aldose reductase and useful for the prevention or treatment of complications of diabetes.
Patent CA-2019692-A1 (CA)
Title: Combination ornament and lawn sprinkler
Inventor: FERRARI RUGGERO
IPC: B05B3/02
Filed: 1990-06-22
Abstract: A combination ornament in the form of a flower and a sprinkler head is provided. The flower is made up of petals and is swingably supported on the sprinkler head. A piston in the sprinkler head is actuated by a water supply which moves the piston upward to move the petals downward out of line with the sprinkler head. A spring is provided in the sprinkler head for forcing the piston downward when the water supply is shut off, for moving the piston and the petals to a closed position.
Patent CA-2020286-A1 (CA)
Title: Self-extinguishing polymeric compositions
Inventor: CIPOLLI ROBERTO
IPC: C08L101/00
Filed: 1990-07-03
Abstract: ABSTRACT OF THE DISCLOSURE:           Polymeric compositions endowed with high self extinguishing characteristics when exposed to a flame, based on thermoplastic polymers or polymers endowed with elastomeric properties,  in particular olefinic polymers or copolymers, comprising: (a)  from 89 to 45 parts by weight of a thermoplastic polymer, or of a polymer endowed with elastomeric properties; (b)  from 8 to 30 parts by weight of one or more ammonium or amine phosphate(s) and/or phosphonate(s); (c)  from 3 to 25 parts by weight of one or more compound(s) derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (I):                        (I) wherein at least one of the radicals from R to R5 is:       ;          ;   wherein:     n  = an integer comprised within the range of from 2 to 8; m  = an integer comprised within the range of from 2 to 6; R6 = H;  (C1-C8)-alkyl; (C2-C6)-alkenyl;  , wherein p is an integer comprised within the range of from 1 to 4 and R8 is either H or a (C1-C4)-alkyl; (C6-C12-cycloalkyl or (C6-C12)-alkylcycloalkyl;   the radicals R7, which can be either equal to, or different from, one another, are: H; (C1-C8)-alkyl; (C2-C6)-alkenyl; (C6-C12)-cycloalkyl or (C6-C12)-alkylcycloalkyl; (C1-C4)-hydroxyalkyl; or the moiety:                                 is replaced by a heterocyclic radical linked to the alkyl chain through the nitrogen atom and possibly containing another heteroatom preferably selected from the group consisting of I, S, N; or in general formula (I) at least one of the moieties  ;                   ;      ;   is replaced by a heterocyclic radical linked to the triazinic ring through the nitrogen atom and possibly containing another heteroatom preferably selected from the group consisting of I, S, N; the other radicals from R to R5, which can be either equal to,  or different from, one another, have the above said meaning, or they are: H;  (C1-C18)-alkyl;  (C2-C8)-alkenyl;  (C6-C16)-cycloalkyl or (C6-C16)-alkylcycloalkyl,  possibly  substituted  with  a hydroxy or (C1-C4)-hydroxyalkyl function.
Patent CA-2023226-A1 (CA)
Inventor: CASTAIN DAVID T
IPC: B23C9/00
Filed: 1990-08-14
Abstract: ABSTRACT OF THE DISCLOSURE An  adaptor for converting a conventional straight  cut  key duplicator  into  one  capable of  executing both  straight  and angular  cuts.   The angular cuts are  necessary  in  duplicating MEDECO  and  EMHART  type keys.  The adaptor mounts to  the  vise grips of a conventional machine.  It comprises a back plate and a front  plate that is pivotally mounted to the back plate.  A  key vise is mounted to the front plate and is adjustable by means  of an  adjustment screw and a fine adjustment collar.  The  pivoting motion of the front plate allows for the angular cuts to be  made on  a  key held in the adaptor.  A set screw that  mates  with  a plurality of apertures on the back plate holds the front plate in position at the desired angle.
Patent CA-2027948-A1 (CA)
Inventor: PROULX THOMAS A
IPC: G06Q40/00
Filed: 1990-10-18
Abstract: The present invention is a method of reconciling a first list formed of a first number of first records and a second list formed of a second number of second records. The first list is typically a bank statement including as records the cheques and other transactions affecting the account balance that have occurred during the accounting period for the bank statement.      The second list is typically the customer's own list of records including the cheques and other transactions affecting the customer's account balance.
Patent CA-2028091-A1 (CA)
Title: Ventilating duct which excludes light
Inventor: WALL FREDERIC E C
IPC: F16L9/00
Filed: 1990-10-19
Abstract: ABSTRACT OF THE DISCLOSURE         A ventilating duct, in the form of a light trap which allows relatively unrestricted air flow while excluding light, comprises a pair of parallel, opposed side walls, and a series of curved vanes extending therebetween.  The vanes are in a nested relationship to define between them a plurality of channels of substantially uniform width, the spacing being chosen in relation to their curvature to prevent rays of light passing through the duct.  The vanes are integrally formed of black, plastic material to prevent light reflections in the channels.  The ventilating duct is primarily intended for use in poultry barns.
Patent CA-2028256-A1 (CA)
Title: Multiple layer transdermal drug administration system
Inventor: FARHADIEH BAHRAM
IPC: A61P11/08
Filed: 1990-10-22
Abstract: ABSTRACT          A multi-layer patch for the transdermal delivery of pharmaceutical drugs.  The patch is characterized by having multiple masses of silicone elastomer in which the active drug and a percutaneous absorption enhancer are homogeneously dispersed throughout.  The patch is especially well suited to delivering the beta2 adrenergic agonist drug albuterol.
Patent CA-2030005-A1 (CA)
Title: Pharmaceutical composition with anti-inflammatory activity
Inventor: BECHERUCCI CRISTINA
IPC: C07K5/10
Filed: 1990-11-14
Abstract: NEW PHARMACEUTICAL COMPOSITION WITH ANTI-INFLAMMATORY ACTIVITY          ABSTRACT OF  THE DISCLOSURE          The use of natural tuftsin (I) and retro-inverted tuftsin (II) or  a pharmaceutically  acceptable salt of basic or acid addition  thereof as  anti-inflammatory  agents  for the  treatment  of  illnesses  of inflammatory pathogenesis is described, together with pharmaceutical compositions  comprising  a therapeutically  effective  quantity  of compound (I) or (II) or of their salts of addition.
Patent CA-2032426-A1 (CA)
Title: Remote supervisory and controlling system performing dimming control of light loads
Inventor: ITO YOSHIHARU
IPC: H05B39/08
Filed: 1990-12-17
Abstract: A dimming switch terminal unit for monitoring a dimming-up switch and dimming-down switch and a dimming control terminal unit for performing dimming control of an associated light load are connected to a central control unit through a two-wire signal line.  The central control unit accesses each of the terminal   units   to   perform   time-divisional   multiplex transmission of monitor data and control data therebetween.          When the dimming-up switch or dimming-down switch is depressed, the central control unit detects monitor data indicating the switch depression and sends to the dimming control terminal unit  control  data  instructing  it  to  start  dimming-up  or dimming-down  control.   The  dimming  control  terminal  unit continues to dim up or dim down the associated light load until the dimming-up switch or dimming-down switch is released and the  dimming  control  terminal  unit  receives  control  data instructing it to stop dimming up or dimming down the light load.
Patent CA-2032683-A1 (CA)
Title: Bottle stopper puller
Inventor: FEDERIGHI GEORGE SR
IPC: B67B7/06
Filed: 1990-12-19
Abstract: ABSTRACT OF THE DISCLOSURE        A stopper remover and piercing pill for champagne bottles, and the like, which has grasping jaws and a piercing pin on an operative  shaft,  wherein  the  operative  shaft is moved  by lever-driven gears inward toward the bottle to pierce the stopper and outward away from the bottle to remove the stopper.
Patent CA-2034982-A1 (CA)
Title: Inhibiting fluoroelastomer degradation during lubrication
Inventor: SCATTERGOOD ROGER
IPC: C10N30/04
Filed: 1991-01-25
Abstract: INHIBITING FLUOROELASTOMER DEGRADATION DURING LUBRICATION               Abstract of the Disclosure A method of lubricating mechanical parts in the presence of at least one fluoroelastomer surface.   The lubrication is effected by means of a lubricating oil containing a dispersant prepared by (i) reacting at least one polyamine with at least one acyclic hydrocarbyl sub-stituted succinic acylating agent in which such acyclic hydrocarbyl substituent contains an average of at least 40 carbon atoms, such reaction being conducted using propor-tions such that the acylating agent is reacted with the polyamine in a mole ratio of from 1.05 to 2.85 moles per mole of polyamine, and (ii) reacting the product so formed with (a) at least one aliphatic vicinal dicarboxylic acid acylating agent containing 4 to 30 carbon atoms in the molecule and in which the two carboxyl groups are separated from each other by two aliphatic carbon atoms, or (b) an anhydride, acid halide, or ester of at least one such dicarboxylic acid acylating agent, or (c) a combina-tion of (a) and (b), using in the reaction of (ii) pro-portions such that the mole ratio of such acylating agent is from 0.10 to 2.50 moles per mole of said polyamine with the proviso that the total mole ratio of the acylating agents in (i) and (ii) per mole of said polyamine is in the range of 2.40 to 4.50.
Patent CA-2037290-A1 (CA)
Inventor: KUHN JOHN B
IPC: B60B37/10
Filed: 1991-02-28
Abstract: A mechanism for mounting a wheel to a mower deck having a mounting arm carrying a bolt.  First bushings fitted within the wheel rotate about a sleeve fixed to the bolt.  Second bushings adjacent the first bushings transfer axial forces from the wheel to the mounting arm.  The second bushing is recessed within the first bushings in one embodiment, and within the wheel in another embodiment.  Seals are formed between the second bushing and the first bushing in one embodiment, and between the second bushing and the wheel in the other embodiment in order to keep dirt and debris from coming between the contacting surfaces during operation.
Patent CA-2042732-A1 (CA)
Inventor: CHANG TAI M
IPC: C09D7/80
Filed: 1991-05-16
Abstract: 06-12(9926)A      PIGMENTED DISPERSION AND ITS USE IN COLORED           THERMOPLASTIC RESIN SHEET           ABSTRACT OF THE DISCLOSURE        A dispersion of pigment colorant particles in a plasticizer, preferably for polyvinyl butyral (PVB) resin, exposed to a level of ultrasonic energy sufficient to provide a predetermined light transmission and a mean pigment particle size less than 1 micron, the concentration of particles in the dispersion being less than required to obtain such transmission without exposure to ultrasonic energy. A process improving the color consistency of such a dispersion involves subjecting it to ultrasonic energy sufficient to maximize the chroma of the dispersion in that the chroma "a" or chroma "b" value of the treated dispersion does not change by more than one unit with further ultrasonic treatment. Also, colored, transparent, plasticized synthetic thermoplastic resin sheet, preferably polyvinyl butyral, and a process for its preparation which involves subjecting a dispersion of resin plasticizer and pigment colorants to a level of ultrasonic energy providing a chroma value in a laminate of said sheet with glass at between about 2 to 86 percent light transmission at a pigment concentration in the sheet which is less than the pigment concentration to provide such chroma value in a comparison laminate with glass wherein the sheet in the comparison laminate contained mechanically sheared pigment particles which had not been ultrasonically treated. Sheet color consistency is improved in that the ultrasonic exposure maximizes color strength (chroma), the chroma "a" or chroma "b" component of the treated dispersion not changing by more than one unit with further ultrasonic treatment.
Patent CA-2047646-A1 (CA)
Title: Automatic anchor applicator
Inventor: FREYMUTH DONALD C
IPC: E01B29/32
Filed: 1991-07-23
Abstract: AUTOMATIC ANCHOR APPLICATOR     ABSTRACT           An automatic anchor applicator is provided having a frame which mounts a head assembly for vertical movement between a raised travel position and a lowered operative position.    The  head  assembly  has  an  inclined  anchor conveyor and a pair of articulated applicator arms for transporting a pair of anchors from a loading station to a position adjacent a rail.  Adjuster members are positioned immediately adjacent the pair of anchors at an adjustment station to shift the anchors along the rail into abutting relation with opposite vertical faces of the tie.  Relative rotation of the articulated arms resiliently places the positioned anchors into positive engagement with the rail.
Patent CA-2048626-A1 (CA)
Title: New aryloxy-alkylamines, their preparation and medicaments containing these
Inventor: LOTZ BERNHARD
IPC: A61K31/22
Filed: 1990-03-08
Abstract: Summary New aryloxy-alkylamine derivatives of the general formula I                    in which A signifies a benzene or thiophene ring, R and R1, independently of one another, each hydrogen, alkyl, halogen, CF3 or alkoxy, R2 alkyl, cycloalkyl, alkenyl, alkynyl, alkaryl or saturated or usnaturated aliphatic or aromatic acyl, R3 and R4 in each case hydrogen, alkyl, alkenyl, alkynyl or cycloalkyl with, in each case, up to 8 C-atoms, whereby R3 and R4 can be the same or different but are not simultaneously hydrogen or R3 and R4, together with the nitrogen atom connecting them, form a 5- to 7-membered saturated ring or a saturated heterocyclic ring which can possibly contain an oxygen or nitrogen atom as a further heteroatom in the ring, whereby an additional nitrogen atom can be substituted by an alkyl radical with up to 3 C-atoms, and their acid-addition salts possess interesting pharmaceutical properties and are especially suitable as anti-arrhythmics.
Patent CA-2049117-A1 (CA)
Inventor: ZUCKERWAR RICHARD J
IPC: A41D19/015
Filed: 1991-08-13
Abstract: A multi-ply glove or mitt construction which includes an insulated outer shell and a removable liner, with the shell and liner being designed for separate use or to be worn in combination.  The multi-layer outer shell includes an outer water repellant layer, an inner heat insulating layer, a vapour barrier located between said outer water repellant layer and said inner heat insulating layer, and a moisture absorbing layer formed on the inner surface of the heat insulating layer.  The glove construction also includes a functional curve pattern for maximum comfort and fit.
Patent CA-2052878-A1 (CA)
IPC: C22B3/18
Filed: 1991-10-07
Abstract: A method for recovering silver from a refractory manganese dioxide-silver ore.  The ore is contacted with an effective amount of a culture of direct manganese-reducing Bacillus polymyxa bacteria.  The ore-bacteria mixture is maintained at an approximately neutral pH until a sufficient amount of the manganese dioxide in the ore is reduced from Mn(IV) to Mn(II).          The silver present in the ore is then recovered by conventional methods such as cyanide leaching.
Patent CA-2056061-A1 (CA)
Title: Digital generation of synthetic aperture radar images
IPC: G01S13/90
Filed: 1991-11-22
Abstract: In a method for digital generation of synthetic aperture radar (SAR) images obtained by means of a coherent imaging system a signal compression in the azimuth and/or range direction is carried out with high resolution by means of a subaperture configuration. A stepwise linear approximation of a quadratic phase characteristic is performed with regard to a reference function and frequency overlapping of the subapertures is effected for optimizing the approximation of the phase characteristic. For the formation and synthesis of the subapertures complex multiplications are carried out, the signal of each subaperture thereby being shifted in the frequency. The individual subapertures are integrated twice by means of the moving average method for reducing the side lobes of the low resolution impulse response and after a time shift for equalizing the relative positioning of the subapertures and after the complex multiplications for the frequency shift the results obtained in the individual subapertures are coherently summated.
Patent CA-2056437-A1 (CA)
Title: Production of virus and purification of viral envelope proteins for vaccine use
Inventor: EWASYSHYN MARY E
IPC: C12P21/00
Filed: 1990-06-28
Abstract: Immunogenic envelope glycoproteins are produced from enveloped virus, such as of the paramyxoviridae family, particularly PIV-3 and RSV, by culturing the virus in the substantial absence of exogenous serum proteins, isolating the virus from the tissue culture, solubilizing the envelope glycoproteins and isolating the solubilized envelope glycoproteins by chromatography.
Patent CA-2056677-A1 (CA)
Title: Method and device for transmission control in electrical feed vehicles
Inventor: ZIPOLI CLAUDIO
IPC: B60L11/18
Filed: 1991-11-29
Abstract: ABSTRACT Method for electrical feed vehicle transmission control including at least one electric motor (M1, M2) and a driving wheel  (1), whose respective shafts are mechanically linked together by. a coupling device (2), wherein: a) the instantaneous difference between the r.p.m. of the driving  wheel (1) and the r.p.m. of the electric motor (M1, M2), is monitored, preferably on their shafts, upstream and downstream of the coupling device (2). The coupling device  is  adjustable  according to torque transmission; b) this difference in r.p.m. is transformed on the basis of noted characteristics of torque transmission of the coupling device (2), into a regulation or drive signal the coupling device  in  relation to the transmitted torque.
Patent CA-2062387-A1 (CA)
Title: Process for the preparation of sulfonylureas
Inventor: WILLMS LOTHAR
IPC: C07D251/14
Filed: 1992-03-06
Abstract: Process for the preparation of sulfonylureas Herbicidal sulfonylureas of the formula I, (see formula I) in which X is -O-, -O-NR2- or -SO2-NR2-, Y is -N- or CH, R1 is (substituted) alkyl, (substituted) alkenyl or (substituted) alkynyl, or else, where X = O, (substituted) phenyl, R2 is H, alkyl, alkenyl, alkynyl or cycloalkyl, R3, R4 are H, (substituted) alkyl or (substituted) alkoxy, halogen, alkylthio, alkylamino or dialkylamino and R5, R6 are H or alkyl, and their salts with acids or bases, are prepared by reacting compounds of the formula II     (see formula II) with compounds of the formula III   (see formula III)
Patent CA-2063220-A1 (CA)
Title: Bipolar transistor and method of fabricating the same
Inventor: SHOJI KENICHI
IPC: H01L21/331
Filed: 1992-03-17
Abstract: ABSTRACT OF THE DISCLOSURE            To eliminate misfit dislocation occurring in a hetero-interface and to provide a bipolar transistor capable of a high speed operation, the bipolar transistor is configured such that the energy band gap is progressively narrowing from park of an emitter layer towards part of a collector layer through a base layer.