baber/WOPTO huggingface dataset:
Patent CA-2025161-A1 (CA)
Title: Method for selectively recovering lead, zinc and calcium from materials in which they are contained as oxide or salts not soluble in water
Inventor: DELALIO ANGELO
IPC: C22B3/14
Filed: 1990-09-12
Abstract: A METHOD FOR SELECTIVELY RECOVERING LEAD  ZINC AND CALCIUM FROM MATERIALS IN WHICH THEY ARE CONTAINED AS OXIDES OR SALTS NOT     SOLUBLE IN WATER                           ABSTRACT            A method for selectively recovering lead zinc and calcium from materials containing them as oxides or salts not soluble in water, which includes leaching the above mentioned materials with ammonium chloride  solution at  its boiling temperature,  separating the insoluble solid and treating the obtained solution with carbon dioxide and ammonia to precipitate separately lead,  zinc and calcium carbonates  from which carbon dioxide is recovered by calcination or by leaching in acids.
Patent CA-2030640-A1 (CA)
IPC: H04B10/43
Filed: 1990-11-22
Abstract: A Periodic Array With A Nearly Ideal Element Pattern Abstract A waveguide array comprising a plurality of waveguides which are each outwardly tapered at the aperture of the array in accordance with a predetermined criteria chosen to increase waveguide efficiency. The tapering serves to gradually transform a fundamental Bloch mode, propagating through the waveguide array, into a plane wave in a predetermined direction, and then to launch the plane wave into free space in the predetermined direction. In another embodiment, the waveguidesare positioned relative to one another in order to satisfy the predetermined criteria.
Patent CA-2033848-A1 (CA)
Inventor: ERLACH JOSEF
IPC: B25D11/12
Filed: 1991-01-09
Abstract: The percussion device which can be used as a hammer drill has a drive piston for driving an overhung percussion piston which is mounted between two air cushions. Depending on the percussion travel of the percussion piston, the percussion air cushion is reversed so that a respective partial quantity is passed around the percussion piston to the opposite side by a central bypass. A no-load bypass is also provided to vent the recoil air cushion to the percussion cushion for a no-load condition. A third bypass bridges the drive piston in the top dead center position to communicate an annular chamber to the rear of the drive piston with the percussion cushion.
Patent CA-2035673-A1 (CA)
Inventor: FARRELL JOSEPH K
IPC: H04L29/06
Filed: 1991-02-05
Abstract: INTEGRATED DATA LINK CONTROLLER WITH SYNCHRONOUS LINK INTERFACE AND ASYNCHRONOUS HOST PROCESSOR INTERFACE            ABSTRACT OF THE DISCLOSURE      A single chip integrated data link control  (IDLC) device provides full duplex data throughput and versatile protocol  adaptation  between  variably  configured time channels on a high speed TDM digital link (e.g. T-1 or T-3 line) and a host data processing system. The device can handle multiple channels of voice and varied protocol data traffic, and thereby is suited for use in primary rate   ISDN   (Integrated   Services   Digital   Network) applications.   Synchronous   and   asynchronous   special purpose  logic  sections  in  the  device  respectively interface  with  the  network  and  a  bus  extending  to external processing systems.  Logic  in the  synchronous section   forms   plural-stage   receive and   transmit processing pipelines relative to the network interface. A "resource manager" element (RSM) and time swap (TS) RAM memory  operate  to  dynamically  vary  states  in  these pipelines in synchronism with channel time slots at the network  interface,  whereby  each  pipeline  operates  in multitasking mode to perform plural functions relative to each channel  during each  time  slot. The  device  also includes integrated memory queues in which communication data and channel status information are stacked relative to  the  device  interfaces.  Capacities  and  modes  of operation  of  these  queues  are  selected  to  minimize effects  on  chip  size,  throughput  and  cost,  while supporting   operations   in   the   synchronous   section pipelines  so  that  critical  time  dependencies  between consecutive pipeline stages,  and between the pipelines and external processors, are lessened.
Patent CA-2036521-A1 (CA)
Title: Intrinsically safe telephone
Inventor: BRENEMAN BRIAN H
IPC: H04M19/08
Filed: 1991-02-18
Abstract: An intrinsically safe telephone as provided for use in hazardous areas. The telephone includes a single line instrument located in the hazardous area which, in turn, is coupled by a two-wire transmission path to a shunt diode barrier and a telephone line interface located in a safe environment. The telephone line interface reduces power of incoming ringing and audio signals. The telephone line interface further includes an off-hook indicating circuit which senses when the single line instrument is off-hook. The intrinsically safe telephone is useful in all hazardous environments as classified by the National Electrical Code and requires no explosion-proof housing.
Patent CA-2037081-A1 (CA)
Title: Carboxylic acid derivatives
Inventor: CLITHEROW JOHN W
IPC: C07D307/52
Filed: 1991-02-26
Abstract: ABSTRACT CARBOXYLIC ACID DERIVATIVES The  invention  relates  to  salts  formed  between ranitidine and a complex of zinc with a carboxylic acid  selected  from tartaric  acid,  citric  acid  and alkyl citric acids,  and to solvates of such salts. The  salts  and  solvates  thereof  are  useful  in  the treatment  of  gastro-intestinal  disorders,  such  as peptic ulcer disease and non-ulcer dyspepsia.
Patent CA-2037806-A1 (CA)
Title: Anti-pathogenically effective compositions comprising lytic peptides and hydrolytic enzymes
Inventor: RYALS JOHN A
IPC: A01N63/50
Filed: 1991-03-08
Abstract: Anti-pathogenically effective compositions comprising lytic peptides and hydrolytic enzymes Abstract Anti-pathogenically effective compositions are provided containing a combination of hydrolytic enzymes and lytic peptides as the active agent. Methods of controlling the growth of pathogens using the anti-pathogenically effective compositions are provided. Transgenic plants that contain genes that are able to express lytic peptides and hydrolytic enzymes are also provided.
Patent CA-2038365-A1 (CA)
Inventor: BERFIELD ROBERT C
IPC: B05B15/06
Filed: 1991-03-15
Abstract: SV-252 (35- ) ATTACHMENT SYSTEM FOR LIQUID SPRAY LANCE            ABSTRACT OF THE DISCLOSURE           A liquid spray lance is attached to a pump housing by a relatively stiff sleeve.  A pump outlet coupling within the pump housing is insulated from transferring vibration to the lance by a hose that passes through the sleeve and that connects the pump outlet coupling to the inlet coupling of the lance.  An intermediate portion of the hose is sufficiently flexible and unrestrained as to absorb the pump housing vibration.
Patent CA-2039580-A1 (CA)
Inventor: SCHWARZ DEAN F
IPC: B65D33/25
Filed: 1991-04-02
Abstract: TANDEM RECLOSEABLE PACKAGE             AND METHOD OF MAKING SAME       A flexible tandem package which can be readily separated into two, distinct recloseable packages and the method for making the same is disclosed. The package includes first and second sheets sealed to opposite surfaces of a double recloseable seal fastener strip. The film sheets are further sealed hermetically together around the pariphery of each of the easily separable two distinct packages.
Patent CA-2040755-A1 (CA)
Title: Single wavelength bidirectional optical fiber communication link
Inventor: HSU HUI-PIN
IPC: H04B10/24
Filed: 1991-04-18
Abstract: ABSTRACT     A single wavelength bidirectional communication link is disclosed herein. The bidirectional communication link (100) of the present invention includes  an optical fiber (160) having a first and a second end.  The present invention includes a first arrangement  (260)  for launching a first optical  carrier of a first wavelength onto the  optical fiber (160) at the first end thereof.          Additionally, the first launching arrangement (260) impresses a first modulating signal having a frequency confined to a first frequency spectrum upon the first carrier.    The inventive communication link (100) further includes a second arrangement (270) for launching a second optical carrier of the first wavelength onto the optical fiber (160) at the second end thereof.   The second launching arrangement (270) also impresses a second modulating signal having a frequency  confined to a second frequency spectrum not overlapping the first spectrum upon the second carrier.   In addition, the present invention includes a first receiver (540), coupled to the second end of the optical fiber (160), for extracting the first modulating signal from the first optical carrier.  A second receiver (480), coupled to the first end of the optical fiber (160), extracts the second modulating signal from the second optical carrier.
Patent CA-2042521-A1 (CA)
Title: Window covering apparatus
Inventor: NILSSON ROLAND
IPC: E06B9/26
Filed: 1991-05-14
Abstract: WINDOW COVERING APPARATUS             ABSTRACT OF THE DISCLOSURE       A window covering apparatus includes a venetian blind having a head rail, a plurality of slats, and a bottom rail.  Flexible slat support cords or ladder tapes are attached from the head rail to support a plurality of slats and the bottom rail from the head rail.  The vene-tian blind has a lift cord and a lift cord lock for raising and lowering the blinds and a tilt control for adjusting the tilt to the blind slats.  A pleated shade is attached to the bottom rail of the venetian blind and has a foldable pleated shade portion having a bottom rail attached to the bottom thereof.  A lift cord is attached through a lift cord lock located in the venetian blind head rail and extends through the venetian blinds and venetian blind bottom rail and through the folded pleats of the pleated shade and attaches to the pleated shade bottom rail so that the pleated shade can be raised and lowered independently of the venetian blind with a second lift cord and lift cord lock in the venetian blind head rail.
Patent CA-2043381-A1 (CA)
Inventor: WOOLARD DOUGLAS J
IPC: B05B5/03
Filed: 1991-05-28
Abstract: An electrostatic spray apparatus comprises a source of electrostatically charged liquid connected to an annular nozzle which discharges a hollow tube of electrostatically charged liquid, a source of atomizing air under pressure, an annular atomizing air discharge nozzle surrounding the liquid discharge nozzle, and an annular swirl chamber for the atomizing air. A plurality of apertures connect the source of air to the swirl chamber, the apertures being oriented at an angle to the radial direction to initiate a substantially tangential swirling flow of air in the chamber and being disposed to allow air to pass radially outwardly into the chamber. The chamber is defined by walls which tend to converge in an axial direction from the plurality of apertures towards the air discharge nozzle.
Patent CA-2046876-A1 (CA)
Inventor: KOHNERT ULRICH
IPC: A61K47/20
Filed: 1990-12-19
Abstract: ABSTRACT        The invention concerns a pharmaceutical preparation of a glycosylated protein with t-PA activity with an activity of a least 1.4 MU/ml and a pH value of 4.5 to 9, which contains citrate and at least one compound from the group consisting of a)  ascorbic acid, b)  EDTA, c)  amino compounds of the formula whereby X = SO3H, H, NH2 or OH, R = C1-C9-alkylene, C3-C6-cycloalkylene or benzylidene and R1 and R2, independently of one another, are H or C1-C3-alkyl, d)  guanidinobutyric acid, e)  dimethylbiguanide, f)  7-aminoheptanoic acid, 8-aminooctanoic acid, p-aminomethylbenzoic acid, .delta.-aminovaleric acid, .gamma.-aminobutyric acid, g)  glucosamine, fructose, h)  pyrimidine nucleosides and pyrimidine nucleotides, i)  malic acid, lactic acid, fumaric acid or 2-oxo-glutaric acid, as well as a medicament based on a glycosylated protein with t-PA activity and processes for its preparation.
Patent CA-2048345-A1 (CA)
Title: Aniline derivatives
Inventor: BRITTAIN DAVID R
IPC: C07C317/40
Filed: 1991-08-02
Abstract: ABSTRACT                         ANILINE DERIVATIVES           The invention concerns novel (oxamido- and ureido-phenylsulfonyl)nitromethane derivatives and pharmaceutically acceptable salts thereof which are inhibitors of the enzyme aldose reductase and are of value, for example, in the treatment of certain peripheral effects of diabetes and galactosemia.  Also disclosed are pharmaceutical compositions containing one of the derivatives and processes for the manufacture and use of the derivatives.
Patent CA-2049839-A1 (CA)
Title: Seed bed packer implement
Inventor: ALMEN PETER D
IPC: A01B29/04
Filed: 1991-08-26
Abstract: ABSTRACT OF THE DISCLOSURE          A drawbar packer having an adjustable bias assembly which transfers implement weight between the wheels and the coil packers. Tension on extension springs is adjustable so that sufficient weight is transferred front the wheels to the coil packers such that the wheels pack soil less than the coil packers. In this way, the implement packs soil uniformly in preparation of the seed bed.
Patent CA-2051184-A1 (CA)
Title: Device and forming finger for forming a mouth area on a glass vial and process for forming the glass vial
Inventor: MANNL REINHARD
IPC: C03B23/11
Filed: 1991-09-11
Abstract: Abstract 1.  Device and forming finger for forming a mouth area on a glass vial and process for forming the glass vial. 2.1  In the usual vial machines a single forming finger is allocated to the forming rollers, which form the mouth of the vial. Such a forming finger is subjected to a great wear, by which the mouth profile of a vial is changed in the course of a series.  With the new process and the new forming finger the wear is to be reduced to a minimum so that better production tolerances for the formed mouth become possible. 2.2  This is achieved by its own forming finger being allocated either to each glass tube of a vial machine or a certain play is given to the forming finger or the forming finger is produced with lateral recesses, and a ratio of the cross-sectional surface to the circular segment area of the forming finger of larger than or equal to 0.55 x r is maintained. 2.3  These forming fingers are used in all vial machines, in which from many glass tubes in a cycle step by step vials are produced by rolling and melting the tube pieces.
Patent CA-2052022-A1 (CA)
Inventor: EYAL JACOB
IPC: A61P35/00
Filed: 1991-09-23
Abstract: Abstract of the Disclosure Methods for using synthetic analogs of thrombospondin for potentiating or inhibiting thrombospondin-like activity are provided.
Patent CA-2052068-A1 (CA)
Title: On-line liquid samplers
Inventor: JOHNSON JULIUS T
IPC: G01N33/04
Filed: 1991-09-23
Abstract: ABSTRACT OF THE DISCLOSURE         An arrangement and device for on-line liquid sampling in which small samples of a liquid, particularly a sterilizable liquid, flowing through a pipe are periodically withdrawn.     Sterilization of the sampling device together with a collecting container attached thereto is made possible without exposure of the device to the atmosphere as the device is mounted on the pipe.  This is achieved by enveloping the sampling device with the collection container attached thereto by a flexible, high-temperature resistant enclosure such as a plastic bag, which normally seals off the liquid entry port to the device; sterilizing the device and container assembly in this condition; and providing the pressure  air  actuated valve in the device which serves to close the normally open valve seat to trap a sample of the liquid, with an extension which punctures the bag adjacent to the entry port incident to the actuation of the valve.  The design of the device has also been improved in various respects to simplify its construction and improve its accuracy, convenience and sanitary performance in operation.
Patent CA-2055738-A1 (CA)
Title: Testing electric cables
Inventor: JULIAN KEITH
IPC: G01N29/14
Filed: 1991-11-18
Abstract: ABSTRACT    A non-destructive technique for detecting and observing water-tree formation in an electric cable or a sample or model thereof comprises coupling an acoustic detector to the sample of model and observing acoustic signals in the presence of an alternating voltage stress sufficient to create a risk o-f water tree formation.  The presence of water-trees is indicated by aperiodically repeated occurrence under the said electrical stress of acoustic ringdown signals.  Observation at frequencies in the range of 20kHz to 2 MHz is appropriate.
Patent CA-2057770-A1 (CA)
Inventor: LETEMPS BERNARD
IPC: C03B35/16
Filed: 1991-12-17
Abstract: BREVET D'INVENTION PROCEDE ET DISPOSITIF D'OBTENTION DE FEUILLES DE VERRE BOMBEES L'invention concerne un procédé et un dispositif de bombage de feuilles de verre préchauffées à température de bombage par défilement des feuilles de verre simultanément sur un lit principal de conformation dont la trajectoire longitudinale est substantiellement circulaire ou substantiellement conique de révolution et un ou deux lits de conformation secondaires dont les génératrices sont inclinées par rapport à celles du lit principal. Elle s'applique notamment à la production de vitrages automobiles à coins cassés. Figure 1
Patent CA-2061424-A1 (CA)
Title: Uv reactor assembly
Inventor: HALLETT RONALD C
IPC: C02F1/32
Filed: 1992-02-18
Abstract: A reactor assembly is provided for destroying contaminants in fluids by the application of UV radiation to promote the destruction of the contaminants.  The reactor assembly has a vertically orientated reactor chamber with a centrally located lamp emitting UV radiation and operating at temperatures in excess of 700°C.  A protective sheath transparent to the UV radiation encloses the lamp and isolates the lamp from reactor interior to define thereby an annular reactor space through which fluids to be treated flow.  The fluids flowing through the annular reactor space and along the sheath effect a cooling of the sheath due to lamp heating.  The lamp has a terminal portion at each end thereof.  Each terminal portion has a temperature sensitive component.  The lamp is of a sufficient length to extend the terminals beyond the end portions of the reactor which has a length equal to or greater than the arc length of the lamp.  Cooling air is directed on to each of the upper and lower terminals of the lamp to cool the temperature sensitive portions thereby preventing deterioration of each lamp end due to excessive heating. In directing cooling air onto the lower terminal a pressure is developed which is greater than the pressure at the upper end of the sheath so that a control constant flow of cooling air is assured upwardly of the sheath and over the lamp.  This constant flow of cooling air is assured upwardly over the sheath and over the lamp.  This constant flow of cooling air is controlled to permit the lamp to operate at optimum operating temperatures to provide the necessary output of UV radiation to promote the destruction of the contaminants in the fluids.
Patent CA-2061515-A1 (CA)
Title: Display control driver
Inventor: YOSHIZAWA SIGEO
IPC: G09G3/00
Filed: 1992-02-24
Abstract: ABSTRACT    This display control driver stores a test display pattern in a character generator ROM storing in advance a display pattern to be displayed on a display device.          This test display pattern consists of a pattern arranged to alternate in a combination of light-up and light-out of all mutually neighboring segments in row and column directions.  By displaying this test display pattern on the display device, visual check of a short or open circuit in a display signal is possible.  The character generator ROM stores a test display pattern consisting of a pattern arranged to alternately repeat row by row light-up and light-out of all neighboring display segments in the row direction and a test display pattern consisting of a pattern arranged to alternately repeat line by line light-up and light-out of all neighboring display segments in the column direction.  With these test display patterns, a short or open circuit in the display signal can be checked visually.
Patent CA-2063378-A1 (CA)
Title: Androgen derivatives for use in the inhibition of sex steroid activity
Inventor: LABRIE FERNAND
IPC: A61P5/24
Filed: 1990-07-05
Abstract: Methods for treating sex steroid-dependent diseases by inhibiting sex  steroid activity include administration of novel compounds which include an androgenic nucleus substituted at a ring carbon with at least one substituent specified herein. Such compounds may function by inhibit-ing sex steroid synthesis (both estrogen and androgen synthesis) and/or by antagonistically blocking androgen receptors.
Patent CA-2064357-A1 (CA)
Inventor: BARWISE CHRISTOPHER H
IPC: B03D3/06
Filed: 1992-03-27
Abstract: ABSTRACT     Particles  of  a  desired  mineral  are separated from an aqueous slurry containing  the  desired  particles  and  particles  of an undesired mineral by adding a collector, a frother and a selected alkyl acrylate or alkylmethacrylate  polymer,  and  then floating off the desired particles in a froth flotation cell.            L5/DAS/20.3.92
Patent CA-2065293-A1 (CA)
Title: Process for the preparation of 4,4'-dihydroxydiphenyl sulfone
Inventor: GROETSCH GEORG
IPC: C07C315/00
Filed: 1990-08-22
Abstract: The invention concerns a method of preparing high-purity 4,4'-dihydroxydiphenylsulphone in high yields by reacting phenol with a sulphonating agent in a chorinated aromatic compound. The phenol is reacted with the sulphonating agent in ortho-, meta- or para-chlorotoluene, or any mixture of these isomeric chlorotoluenes, as inert solvent at temperatures of about 100 to about 200 ·C.
Patent CA-2066205-A1 (CA)
Title: Selective diethylation of naphthalene to 2,6-diethylnaphthalene
Inventor: FELLMAN JERE D
IPC: B01J29/85
Filed: 1990-10-16
Abstract: The selective alkylation of naphthalene or 2-ethylnaphthalene to diethylnaphthalene while maximizing the yield of the 2,6-diethylnaphthalene isomer is achieved by carrying out the reaction in the presence of a shape selective catalyst such as the zeolite catalyst ZSM-12.
Patent CA-2067440-A1 (CA)
Inventor: OVAERT FRANCIS
IPC: F16B5/01
Filed: 1992-04-28
Abstract: Each assembly member (5) consists of a rod comprising a head (7) to be driven in rotation at one end, a threaded part (8) at the other end and, between the threaded part and the head, a smooth part (9), the diameter (a) of which is clearly greater than the diameter (b) of the thread root of the threaded part. Application to the attachment of insulating layers for roof coverings or facade claddings. <IMAGE>
Patent CA-2068250-A1 (CA)
Title: Above-floor service fitting for poke-through wiring device
Inventor: WUERTZ EMIL S
IPC: H02G3/18
Filed: 1992-05-08
Abstract: A poke-through wiring device for mounting in a bore opening through a concrete floor slab includes individual tubes for through-floor passage of power supply and data/communication conductors, an intumescent barrier for sealing the bore, and an above-floor service fitting having a main frame including a bottom wall having spaced apart power supply and low voltage data/communication openings therethrough. A pair of opposing sidewalls extend upwardly from the bottom wall and each defines a plurality of receptacle openings. A unitary receptacle barrier mounted on and cooperating with the frame isolates the power supply opening, at least one receptacle opening in one of the sidewalls and at least two of the receptacle openings in the other of the sidewalls from the data/communication opening.      An auxiliary frame may be connected to the main frame to increase the number of available receptacle openings.
Patent CA-2069678-A1 (CA)
Title: Process for the preparation of polyethylene oxide of medium molecular weight
Inventor: ENDESFELDER ANDREAS
IPC: C08G65/30
Filed: 1992-05-27
Abstract: Process for the preparation of polyethylene oxide of medium molecular weight Abstract The present invention relates to a process for the preparation of polyethylene oxide of medium molecular weight by degradation of high molecular weight polyethylene oxide by shearing.     Le A 28 342