baber/WOPTO huggingface dataset:
Patent CA-1327342-C (CA)
Title: Process for beneficiating particulate solids
Inventor: KINDIG JAMES K
IPC: C01G49/08
Filed: 1988-11-29
Granted: 1994-03-01
Abstract: Abstract The   present  invention  provides  a method  for selecting magnetite to form a dense media  for  benefi-ciation  of fine particulate solids such that the par-ticulate solids are as  buoyant  with  respect  to  the dense  media  as  if  the  solids were in a true liquid having a specific gravity equal to that  of  the  dense media.    The  method  involves determining a magnetite particle diameter such that the diameter ratio of  par-ticulate solid to magnetite lies above a diameter ratio partition curve.  The invention is also directed toward using  magnetite  having  a particle diameter less than about 0.005 mm and a mean particle  diameter  of  about 0.0025  mm.  Such magnetite is formed from a gas phase pyrohydrolysis reaction on an  aqueous  iron  (ferrous) chloride  solution.    The present invention is further directed towards  a  method  for  determining  the  ef-ficiency of separation of a dense media separation pro-cess.    This  method  includes determining an apparent distance a  particle  must  travel  in  a  dense  media cyclone  to  be correctly beneficiated.   From this ap-parent distance,  an apparent velocity a particle  must achieve  to  be  correctly  beneficiated is calculated. This apparent velocity is used, along with cyclone geo-metry and operational parameters to calculate a  diver-gence  value  which indicates the efficiency of separa-tion.  The present invention also includes a method for selecting cyclone  geometry and  operating  parameters which  includes  determining  separation efficiency and adjusting geometry and parameters in a manner to obtain improved efficiency.
Patent CA-1297589-C (CA)
Title: Circuit integre de programmation dynamique
Inventor: QUENOT GEORGES
IPC: G10L15/28
Filed: 1988-12-02
Granted: 1992-03-17
Abstract: CIRCUIT INTEGRE DE PROGRAMMATION DYNAMIQUE. Circuit intégré de programmation dynamique comprenant un circuit d'interface (204) avec le bus de données et d'adresses (30) d'un dispositif maître (40), ledit circuit d'interface étant relié d'une part à un bus interne (210) d'accès à une mémoire locale (21) contenant une matrice de référence, et d'autre part à un processeur de séquencement (206), à un circuit décodeur d'instructions (207) et de logique de contrôle et à une mémoire de programme (205), le bus interne (210) étant également relié en parallèle à une unité comprenant un processeur de calcul de distance (203), à une unité comprenant un processeur de calcul d'adresse (201), à une unité comprenant un processeur de calcul général (202), caractérisé en ce que le processeur de calcul général (202) est associé à un ensemble de registres de travail (2020) dont le nombre est programmable par un registre GMOD en fonction des besoins de l'équation locale programmable qui permet la détermination du chemin optimal pour arriver en un point (i,j), et par conséquent, la reconnaissance d'un mot par rapport à la matrice de référence, et en ce que le processeur de calcul d'adresse (201) comporte un circuit spécialisé (20100, 2010) pour le calcul des adresses physiques du registre (2020) sur lequel le processeur de calculs général (202) effectue les calculs correspondant à l'équation locale.
Patent CA-1331097-C (CA)
Inventor: HUBIG MARKUS
IPC: C21C5/56
Filed: 1988-12-05
Granted: 1994-08-02
Abstract: ABSTRACT Process for melting metal scrap and apparatus for performing the process A process for melting metal scrap, particularly steel scrap or such high-melting charge material in a shaft furnace operated in cokeless manner by means of fluid fuels is described.  The furnace shaft used for carrying out the process is separated from the furnace hearth conn-ected to the bottom thereof by means of a cooled grate arrangement. The burners issue substantially vertically to the longitudinal axis of the shaft into the furnace and the combustion air is recuperatively preheated by means of the shaft furnace waste gases.  The amount of heat introduced into the melting unit by means of the burners is sub-divided in dosable manner into a component drawn off from the furnace shaft and a component remaining in the furnace hearth.  For this purpose the radiating surface of the wall lining in the furnace hearth is bet-ween 1.5 and 3.5 m2, particularly 2 and 2.8 m2/tonne of molten metal produced.  The radiation-active, average layer thickness of the gas in the furnace hearth is between 1.5 and 3.5 m, particularly 2 and 2.5m and the inlet temperature of the waste gas into the recuperator is controlled as a function of the charge material bed height in the furnace shaft.          (Fig. 1)
Patent CA-1328388-C (CA)
Inventor: BLAKE JOSEPH W III
IPC: A61M5/178
Filed: 1989-01-31
Granted: 1994-04-12
Abstract: ABSTRACT OF THE DISCLOSURE         A  retractable  hypodermic  needle  &  syringe article comprising barrel means to receive and removably restrain a hypodermic needle-containing assembly for dispensing liquids, plunger means to force said liquids through said needle and a hypodermic needle-containing hub adapted to be removably held at the distal end of said barrel said plunger and hub comprising complementary means to engage, after final use of the article, and retract said hypodermic needle-containing hub into the barrel from which it cannot be reextended for further use wherein the plunger further comprises means to cause the needle-containing  hub  to  assume  an  angled  position relative to the longitudinal axis of the plunger when said hub has been retracted into the barrel.
Patent CA-1322392-C (CA)
Inventor: DE JONG HENDRIK J
IPC: A01K11/00
Filed: 1989-03-06
Granted: 1993-09-21
Abstract: TITLE: Electromagnetic detection system.       ABSTRACT        An electromagnetic detection system comprises a transmitter-receiver apparatus coupled to at least one antenna element to form an electromagnetic interro-gation field in an interrogation zone defined at least in part by physical means. A plurality of responders is capable of generating a detectable signal under the influence of an interrogation field. According to the invention, at least one antenna element is a suitably formed structural element forming part of the physical means.
Patent CA-1292559-C (CA)
Title: Vertical deflection circuit with service mode operation
Inventor: WILBER JAMES A
IPC: H03K4/69
Filed: 1989-03-16
Granted: 1991-11-26
Abstract: ABSTRACT In a video display apparatus having a service mode capability, a vertical deflection circuit includes a vertical deflection winding coupled to a DC blocking capacitor.  An output stage is coupled to the vertical deflection winding at an output terminal.  A vertical sawtooth voltage generator is coupled to a driver stage for driving the output stage at a vertical rate in a sawtooth manner to generate a sawtooth deflection current in the deflection winding and for establishing a DC operating voltage level at the output terminal that charges the DC blocking capacitor.  The sawtooth generator includes a second capacitor that, during normal operation, is charged in a sawtooth manner via a resistor for developing a sawtooth signal. A service mode switching circuit is coupled to the resistor for asserting the service mode of operation by preventing the charging of the second capacitor via the resistor. A DC feedback loop maintains the DC blocking capacitor charged during the service mode.
Patent CA-1322278-C (CA)
Inventor: NYQVIST JAN-OLOF
IPC: B01D9/00
Filed: 1989-04-28
Granted: 1993-09-21
Abstract: ABSTRACT OF THE DISCLOSURE     The disclosure relates to a method and a device for producing compositions comprising fine-grained crystalline explosive substances with the aid of a steam-driven ejector (22).          The expression explosive substances is here taken to mean both low explosives (i.e. - propellants) and high explosives.
Patent CA-1319565-C (CA)
Inventor: NOBUSUE MITSURU
IPC: B21D53/02
Filed: 1989-05-30
Granted: 1993-06-29
Abstract: ABSTRACT OF THE DISCLOSURE      A process for producing breazeable pipes particularly for use in heat exchangers, the process comprising preparing a brazing sheet which comprises a core sheet coated with a brazing substance at least on one surface, forming a bulged portion of a semi-circular cross-section in the central section of the brazing sheet, providing apertures in the bulged portion for securing tube ends therein, and rolling the brazing sheet into a cylinder with its opposite ends being butt jointed to each other.
Patent CA-1327903-C (CA)
Inventor: WOLFE JACK
IPC: B25F5/00
Filed: 1989-06-15
Granted: 1994-03-22
Abstract: COLLET LOCK FOR POWER TOOL                       Abstract A battery powered motor driven screwdriver having an arrangement for both locking the tool-holding collet and disengaging it from the drive train.   The collet is supported in a bushing having internal U-shaped ribs forming pockets, and the collet is formed with radial fins.  To disengage and lock the collet, it is grasped by the operator and pulled outwardly out of engagement with the drive train.  The fins are dropped into the pockets which prevent rotation by interfering contact between the fins and the ribs.
Patent CA-1307691-C (CA)
Title: Low cost color scanner
Inventor: ROBBINS DANIEL H
IPC: G03F3/08
Filed: 1989-06-16
Granted: 1992-09-22
Abstract: ABSTRACT OF THE DISCLOSURE        A color scanner is provided having a commonly mounted and driven original scanning table and LED dot generator exposure source.  Scanning is accomplished by illuminating a strip of the original artwork with high intensity fluorescent light and detecting the illuminated strip through a linear scanning aperture, lens and color filter wheel using a charge coupled device ("CCD") linear detector. Original artwork is held by vacuum against the flat original artwork receiving surface and photosensitive material is automatically loaded and held by vacuum onto the surface of a rotating exposure drum mounted parallel to the direction of travel of the LED dot generator exposure source, and the exposed halftone film is automatically removed from the drum surface and loaded into a transfer cartridge. Advantageously, multiple linear scans may be averaged in order to reduce color fringe effects.  As a further advantage of the present invention photosensitive material is loaded and unloaded from the exposure drum in daylight operation.
Patent CA-1312366-C (CA)
Title: Automatic call distribution (acd) switching system having distributed processing capability
Inventor: ANDREWS GERALD W
IPC: H05K7/14
Filed: 1989-07-27
Granted: 1993-01-05
Abstract: AUTOMATIC CALL DISTRIBUTION (ACD) SWITCHING SYSTEM HAVING DISTRIBUTED PROCESSING CAPABILITY         ABSTRACT OF THE DISCLOSURE    An automatic call distribution (ACD) switching system having a plurality of agent/trunk interface circuits for selectively connecting a plurality of telephone trunks to a plurality of agent workstations. The ACD switching system includes at least a first line interface module having a shelf control module for controlling a plurality of carrier card slots. At least one of the carrier card slots includes a carrier card for supporting a plurality of agent/trunk interface circuit "subcards" in closely-aligned parallel relation to the carrier card. Each carrier card and the shelf control module include digital processing circuits and an HDLC transceiver to facilitate the interconnection of first and second agent/trunk interface circuits upon a call processing request for service. In the preferred embodiment, control information used to effect the interconnection of the agent/trunk interface circuits is transmitted throughout the switching system in a dedicated timeslot along a digital voice PCM bus. A second line interface module can be provided at a geographically-remote location from the first line interface module for remote processing. The first and second line interface modules are then interconnected via a T-1 span line.
Patent CA-1335372-C (CA)
Inventor: MILLER ROBERT A
IPC: A61J1/00
Filed: 1989-08-29
Granted: 1995-04-25
Abstract: A wedge-shaped access port for a flexible container is described.  The flexible container (10) is formed of at least one or more sheets of material (12) which are sealed together about the edges (14) to form a cavity (16).  The wedge-shaped port (18) is sealed to the container (10) so that a base of the wedge is exterior to the cavity and a thin edge of the wedge is located inside the cavity.  An orifice (20) in the port provides a passageway from the base of the wedge to the cavity.  The wedge shape of the port allows sealing of the port to container with minimal stress or thinning of material at the seal between the port and the container.
Patent CA-1318054-C (CA)
Inventor: BERENDT HANS-ULRICH
IPC: C08F283/06
Filed: 1989-09-25
Granted: 1993-05-18
Abstract: 1-17256/+            Graft polymers which are water-soluble or dispersible in water, their preparation and use Abstract of the Disclosure Graft polymers which are obtainable from (A) 2 - 30 % by weight of an addition product from alkylene oxide onto an aliphatic alcohol which is at least trihydric having 3 to 10 carbon atoms and (B) 70 - 98 % by weight of a grafted-on monomer mixture of (1) 20 to 50 % by weight of an N-substituted or N-unsubstituted acrylamide or methacrylamide and (2) 50 to 80 % by weight of an N-vinyl-substituted amide or of a vinyl ester, derived in each case from a saturated aliphatic monocarboxylic acid, where the sums of (A) and (B), and (1) and (2) in each case add up to 100 %.            These novel graft polymers are suitable as dyeing assistants, particularly as padding assistants or liquor binders when dyeing cellulose fibre materials.
Patent CA-1338844-C (CA)
Title: Thiophene carboxamine derivatives and their use as pharmaceuticals
Inventor: FERNANDEZ FERNANDEZ MARIA ISAB
IPC: C07D409/12
Filed: 1989-09-25
Granted: 1997-01-14
Abstract: A pharmaceutical compound of the formula   in which R1, R and R3 independently are hydrogen, hydroxy, halo, nitro, amino, C2-5 acylamino, C1-4 alkyl, -CHO, -CH2OH, -CH2OC1-4 alkyl, -COOH, -COC1-3 alkyl, -CH(OH)C1-3 alkyl, C1-4 alkoxy, C2-4, alkenyloxy, C1-4 alkylthio, C1-4 alkylsulphinyl, C1-4 alkylsulphonyl, N-substituted heterocyclyl, optionally substituted phenyl, optionally substituted phenylthio, option-ally substituted phenylsulphinyl, optionally substituted phenylsulphonyl or optionally substituted phenylsulphonamido, or R1 and R together form a C3-5 slkylene bridge; provided that at least one of R and R3 is C1-4 alkoxy or C2-4 alkenyl-oxy; and X is (i) -(CH2)nN(R4)2 where each R4 independently is C1-4 alkyl, C2-4 alkenyl or optionally substituted C6H5CH2-, and n is 1, 2 or 3, or (ii) a 5- to 8-membered alicyclic group containing one or two nitrogen atoms and directly attached to the amido nitrogen or attached by a C1-3 alkylene chain; and salts and esters thereof.
Patent CA-1340694-C (CA)
Title: Biodegradable in-situ forming implants and methods of producing the same
Inventor: DUNN RICHARD L
IPC: A61L15/62
Filed: 1989-09-27
Granted: 1999-08-03
Abstract: A biodegradable polymer is provided for use in providing syringeable, in-situ forming, solid biodegradable implants for animals. The polymer is placed into the animal in liquid form and cures to form the implant in-situ. A thermoplastic system to form said implant comprises the steps of dissolving a non-reactive polymer in biocompatible solvent to form a liquid, placing the liquid within the animal, and allowing the solvent to dissipate to produce the implant. An alternative, thermosetting system comprises mixing together effective amounts of a liquid acrylic ester terminated, biodegradable prepolymer and a curing agent, placing the liquid mixture within an animal and allowing the prepolymer to cure to form the implant.      Both systems provide a syringeable, solid biodegradable delivery system by the addition of an effective level of biologically active agent to the liquid before injection into the body.
Patent CA-1299945-C (CA)
Inventor: KILLION ROBERT F
IPC: F02M25/07
Filed: 1989-09-28
Granted: 1992-05-05
Abstract: Abstract An exhaust gas recirculation (EGR) valve for controlling the amount of exhaust entering the intake manifold of an internal combustion engine.  The EGR valve comprises a universal base so that a single base may fit many makes and models of vehicles, a diaphragm valve having two ports facing opposite directions protruding from the top of said valve, making connection of a vacuum hose to the EGR valve easier, and a back pressure transducer wherein the transducer has means to alter the vacuum required to close the valve.
Patent CA-1336443-C (CA)
Inventor: BRUNJES GERALD A
IPC: G09F3/02
Filed: 1989-09-29
Granted: 1995-07-25
Abstract: A parcel waybill is provided, having a clear plastic cover sheet and a document package.  The inside face of the cover sheet is coated with an adhesive and the uppermost sheet of the document package is comprised of carbonless copy paper adapted to provide a visible image on the upper face thereof.
Patent CA-1341470-C (CA)
Inventor: DE BLOCK MARC
IPC: C12N15/82
Filed: 1987-04-07
Granted: 2005-01-04
Abstract: The invention relates to a DNA fragment containing a determined gene, the expression of which inhibits the antibiotic and herbicidal effects of Bialaphos and related products. It also relates to recombinant vectors, containing such DNA fragment, which enable this protective gene to be introduced and expressed into cells and plant cells.
Patent DK-166391-C (DK)
Inventor: BIRR CHRISTIAN
IPC: C07K1/06
Filed: 1982-09-16
Granted: 1993-09-27
Abstract: Bis-thymosine  alpha -1 consisting of two desacetylthymosine  alpha -1 units N-terminally linked by a bridge bond of 1 to 10 carbon atoms, especially an  alpha , omega -diacyl residue with 2 to 10 carbon atoms. This new compound is made by converting a synthetic desacetylthymosine  alpha -1 in which all functional groups of amino acids 1 through 28, except the N-terminal group, are blocked by protective groups conventional in peptide synthesis with a coupling compound of 1 to 10 carbon atoms and that reacts with NH2 groups, in a polar solvent, and then removing the protective groups.
Patent DK-162045-C (DK)
Inventor: WILLE KNUT
IPC: A61K49/04
Filed: 1983-09-30
Granted: 1992-02-10
Abstract: Compounds of the general formula; <CHEM> (wherein R represents -CH(CH2OH)2 or -CH2CH(OH)CH2OH) possess a package of favourable parameters which render them of particular use not only in all forms of intravascular visualisation but also in myelography. The compounds are prepared by reaction of the corresponding 5-monoacetylamino compound with one or more reagents effective to introduce the 2-hydroxy-3-methoxypropyl group.
Patent FI-65071-C (FI)
Inventor: FAUTH HEINRICH
IPC: C08B9/00
Filed: 1979-12-17
Granted: 1984-03-12
Abstract: Process for manufacturing viscose solutions having good filterability and producing low amounts of sulfide gases during subsequent spinning; said process comprising treating cellulose with a first alkali metal hydroxide solution in a first alkalization step, freeing the alkalized cellulose from at least part of the excess hydroxide solution without pressing-off, and treating the cellulose with a second alkali metal hydroxide solution in a second alkalization step while maintaining the temperature of the reaction mixture at not more than 18 DEG  C.
Patent FI-84060-C (FI)
Inventor: CROOKES DEREK LESLIE
IPC: C07D307/52
Filed: 1981-12-30
Granted: 1991-10-10
Abstract: Ranitidine is prepared by reaction of a compound of formula (II) <CHEM> where L is a leaving group, e.g. -SR (where R is a straight or branched C1-6 alkyl group optionally substituted by phenyl), with nitromethane at an elevated temperature, e.g. 80 - 110 DEG C.
Patent FI-78391-C (FI)
Inventor: KNECHT ADOLF
IPC: A01N25/00
Filed: 1982-06-24
Granted: 1989-08-10
Abstract: 1. Process for the time controlled release of active substances from sustained-release active substance preparations, in particular drug preparations, by addition of hydrophilic polymers characterized in that the release rate which is rising as a result of increasing viscosity steps of the hydrophilic polymers added is empirically determined and the desired release characteristic is adjusted using the values determined.
Patent FI-69637-C (FI)
Inventor: LANSBERGEN GABRIEL JACOBUS THE
IPC: C11B7/00
Filed: 1982-09-03
Granted: 1986-03-10
Abstract: A process for the fractionation of hardened butterfat resulting in a fraction (i) enriched in triglycerides comprising two fatty acid residues having each at least 16 carbon atoms and 1 fatty acid residue with 2 to 8 carbon atoms, said triglycerides having a carbonnumber ranging from 24 to 42 and a fraction (ii) enriched in triglycerides having a carbonnumber greater than 42. Fractionation is preferable carried out in the presence of a solvent such as acetone or hexane. Margarine fat blends containing fraction (i) display improved butterlike properties.
Patent FI-84647-C (FI)
Inventor: GOODNOW RONALD F
IPC: B06B1/18
Filed: 1986-07-07
Granted: 1991-12-27
Abstract: A fluid pressure oscillator is provided with a cylinder (10) containing a piston assembly (22). Fluid-­actuated reciprocation of the piston assembly (22) is controlled by a valve (66) mounted externally of the cylinder (10). The valve (66) is alternately shifted between "advance" and "retract" settings by a reciprocating actuating rod (78) removably received in the cylinder (10). A magent (58) on the piston assembly cooperates with magnetic elements (80, 82) on the actuating rod (78) to automatically reciprocate the latter.
Patent FI-89670-C (FI)
Inventor: SILVESTRINI THOMAS ANTHONY
IPC: A61F2/08
Filed: 1987-01-23
Granted: 1993-11-10
Abstract: A device (1) for affixing a pretensioned ligament or tendon prosthesis to a bone of a patient includes a hollow elongated sleeve (3) adapted to fit within a through drill hole in the bone and a cooperating wedge (9). A portion of the bore (35) of the hollow sleeve (3) is tapered with decreasing bore cross-sectional thickness towards the front end (5) of the elongated sleeve (3). The wedge (9) is shaped so that a portion of a ligament or tendon prosthesis can be securely trapped between the wedge (9) and the inner wall of the sleeve (3) when the wedge (9) is fully advanced forwardly within the sleeve (3). The device (1) also includes a locking nut (11) or ferrule for releasably locking the sleeve (3) and wedge (9) together with the wedge (9) fully advanced within the sleeve (3), and a releasable bolt/washer (21) assembly for preventing the prosthesis from being pulled forwardly through the drill hole in the patient's bone. The device (1) is easy to use and provides a highly secure fixation of the pretensioned prosthesis.
Patent FI-87964-C (FI)
Inventor: BALDERSON SIMON
IPC: H05B3/26
Filed: 1988-02-24
Granted: 1993-03-10
Abstract: A heating element (2) comprises an electrically resistive track intended to be formed on an electrically insulative substrate (4). A heating unit (10) comprises a heating element (12) and a temperature sensor (14) on a substrate (11), the sensor (14) comprising an electrically resistive track. The track (2,14) consists of a thick film having in the temperature range of from 0 DEG C to 550 DEG C a temperature coefficient of resistance in excess of 0.006 per degree C. The thick film includes a metal and a glass in such proportions as to provide a suitable resistivity and a thermal expansion coefficient to match that of an electrically insulative substrate to which the track is to be applied and to permit adhesion of the track to the substrate. The considerable variation of the resistance of the track with temperature provides advantages in both of the aforementioned applications.
Patent FI-99140-C (FI)
Inventor: EISELE WOLFGANG
IPC: C09D161/32
Filed: 1989-09-18
Granted: 1997-10-10
Abstract: The present invention relates to thermosetting aqueous synthetic resin mixtures for coating wooden materials based on etherified melamine/formaldehyde condensation products and aqueous synthetic resin dispersions, and to a process for preparing these mixtures and the use for coating wooden materials.