baber/WOPTO huggingface dataset:
Patent CA-1212501-A (CA)
Inventor: CROSBY PETER A
IPC: A61N1/36
Filed: 1984-04-10
Granted: 1986-10-14
Abstract: A COCHLEAR IMPLANT SYSTEM FOR AN AUDITORY PROSTHESIS                  Peter A. Crosby Christopher N. Daly David K. Money James F. Patrick Peter M. Seligman ABSTRACT      A cochlear implant system includes an electrode array (1)  comprising multiple platinum ring electrodes in a silastic carrier to be implanted in the cochlea of the ear.  A receiver-stimulator (3) containing a semiconductor integrated circuit and other components is implanted in the patient adjacent the ear to receive data information and power through tuned coil (5) using an inductive link (6) from a patient-wearable external speech processor (7) including an integrated circuit and various components which is configured or mapped to emit data signals from an EPROM programmed to suit each patient electrical stimulation perceptions through testing of the patient and his implanted stimulator/electrode using a diagnostic and programming unit (12) connected to the processor by an interface unit (10).  The system allows use of various speech processing strategies including dominant spectral peak and amplitude and compression of voice pitch so as to include voiced sounds, unvoiced glottal sounds and prosodic information. Biphasic pulses are supplied to various combinations of electrodes by a switch controlled current sink in various modes of operation.  In-place testing of the implant is also provided.  Various safety features are incorporated to insure that harmful impulses are not imposed on the patient.     Transmission of data is by a series of discrete data bursts which represent the chosen electrode(s), the elec-trode mode configuration, the stimulating current,  and amplitude determined by the duration of the amplitude burst.
Patent CA-1181874-A (CA)
Inventor: DUTTERA JAMES
IPC: B03D1/14
Filed: 1984-05-08
Granted: 1985-01-29
Abstract: ABSTRACT OF THE DISCLOSURE           An improved method and apparatus for froth flotation separation of the components of a slurry, having particular utility for the beneficiation of coal by the flotation separation of coal particles from impurities associated therewith such as ash and sulfur.  In this arrangement, a primary spray nozzle is positioned above a flotation tank having a water bath therein, and sprays an input slurry through an aeration zone into the surface of the water.  The spraying operation creates a froth on the water surface in which a substantial quantity of parti-culate matter is floating, while other components of the slurry sink into the water bath.  A skimming arrangement skims the froth from the water surface as a cleaned or beneficiated prod-uct.  Moreover, a recycing operation is provided wherein parti-culate materials which do not float after being sprayed through the primary spray nozzle are recycled to a further recycle spray nozzle to provide a second opportunity for recovery of the recycled particles.
Patent CA-1234147-A (CA)
Title: Process for the preparation of ethanol and/or ethyl  acetate
Inventor: DRENT EIT
IPC: B01J31/02
Filed: 1984-05-31
Granted: 1988-03-15
Abstract: A B S T R A C T              PROCESS FOR THE PREPARATION OF ETHANOL AND/OR ETHYL ACETATE      Ethanol and/or ethyl acetate are prepared by reacting methanol with carbon monoxide or a mixture of carbon monoxide and hydrogen in the presence of a catalyst system comprising (a) a ruthenium compound and optionally a rhodium compound, (b) an iodide and/or bromide of an alkali metal or alkaline earth metal and (c) an aromatic heterocyclic amine or an oxide thereofor an organic nitrogen compound containing a group   .
Patent CA-1224792-A (CA)
Inventor: HENNING RAINER
IPC: C07D209/54
Filed: 1984-06-22
Granted: 1987-07-28
Abstract: Abstract of the disclosure:       The invention relates to a process for the pre-paration of compounds of the formula I      in which R represents hydrogen, alkyl or aralkyl, and R1 to R6 denote identical or different radicals hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, cycloalkenylalkyl, aralkyl or aryl, both being monosubstituted, disub-stituted or trisubstituted in the aryl moiety by alkyl, alkoxy, hydroxyl, halogen, nitro, methylenedioxy and/or cyano, or in which two of the radicals R1 to R6, together with the carbon atom(s) bearing them form a monocyclic or bicyclic ring system, and the remaining radicals are hydrogen, which process comprises converting, with an oxidizing agent in the presence of a silver salt, a pyrrolidine derivative of the formula II into a .DELTA.1-pyrroline derivative of the formula III, reacting the latter with hydrogen cyanide or a metal cyanide to form a nitrile of the formula IV, and subjecting the latter to solvolysis with a compound of the formula ROH.  The compounds of the formula I are valuable intermediates in the preparation of pharmaceuticals, especially of angiotensin converting enzyme.
Patent CA-1218637-A (CA)
Inventor: RADOWSKY PETER JR
IPC: F21V33/00
Filed: 1984-06-22
Granted: 1987-03-03
Abstract: SAFETY  HARNESS                        ABSTRACT     The present harness comprises a pair of shoulder straps secured to a belt.  The shoulder straps are crossed in the  back similar to a pair of suspenders. However, unlike a pair of suspenders, the shoulder straps are not secured at the point of crossing.  The belt portion is adapted to be secured around the wearer's waist.              The belt and shoulder straps are fabri-cated of a flexible material, suitably of plastic., or combinations thereof, or canvas, particularly sui-ted is belting such as web belting. The belt and shoulder straps have a reflective surface on the outer portion thereof to reflect light striking such surface.
Patent CA-1252243-A (CA)
Inventor: BURGUETTE MARIO D
IPC: G11B5/72
Filed: 1984-09-17
Granted: 1989-04-04
Abstract: PERFLUOROPOLYETHER COMPOSITIONS WHICH ARE SOLUBLE IN NON-FLUORINATED SOLVENTS                ABSTRACT OF THE DISCLOSURE Polymeric compositions are provided in which per-fluoropolyethers have been solubilized in non-fluorinated solvents by combining them with a solubilizing agent such as azotic conjugated compounds, and phosphorylated compounds.  Typical of the perfluoropolyethers is   Typical of the solubilizing agents is phosphorylated methacryloyloxyhydroxypropylisophthalate.  The perfluoropolyether and the solubilizing agent are mixed to form a paste which is soluble in organic solvents such as methylethylketone.  These compositions find utility as protective lubricant coatings for thin film magnetic recording media.  They have the advantage that only one coating step is required in order to apply both the phosphorylated compound and the lubricating polyether. Recording media lubricated with these compositions have demonstrated excellent wear characteristics.
Patent CA-1244695-A (CA)
Inventor: MORI KEI
IPC: G02B6/28
Filed: 1984-09-25
Granted: 1988-11-15
Abstract: ABSTRACT OF THE INVENTION         A light diverting device for diverting a part of the light energy transmitted through an optical conductor and for taking it out of the optical conductor. The device is comprised of a first cylindrical optical conductor provided with a light emission edge surface formed on an inclined plane, a second optical conductor provided with a light-receiving edge surface having an inclined surface engaged with the inclined surface of the first one with a circular hole formed on a portion thereof and a third optical conductor having a light-receiving edge formed on the outer circumferential surface of the first optical conductor at a position opposed to said hole.
Patent CA-1254578-A (CA)
Inventor: FRENETTE RICHARD
IPC: C07C311/00
Filed: 1984-10-26
Granted: 1989-05-23
Abstract: TITLE OF THE INVENTION LEUKOTRIENE ANTAGONISTS            ABSTRACT OF THE DISCLOSURE       Compounds having the formula:                    are antagonists of leukotrienes of C4, D4 and E4, the slow reacting substance of anaphylaxis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory and cytoprotective agents.
Patent CA-1260908-A (CA)
Inventor: BESON JOHN
IPC: F16K3/20
Filed: 1984-11-13
Granted: 1989-09-26
Abstract: ABSTRACT OF THE DISCLOSURE    A gate valve [10] is disclosed having a secondary seal, wherein the gate [15] forms a metal to metal seal with the seat [29, 128] and wherein a resilient seal [36a] is moved toward the gate [15] in a closed position to form a secondary fluid-tight seal with the gate [15].          A device [31, 34] for deenergizing the secondary seal is provided in order to prevent wear of the secondary seal upon opening of the gate and also to reduce the gate [15] drag caused by the energized secondary seal.  Also disclosed is a pressure relief mechanism [40, 141] for the secondary seal adapted to prevent damage to the seal and a mechanism for evenly applying opposing secondary seals.
Patent CA-1230336-A (CA)
Inventor: SCHMIERER ROLAND
IPC: C07D235/02
Filed: 1984-12-19
Granted: 1987-12-15
Abstract: Abstract of the disclosure:          Compounds of the formula   wherein A denotes N or CR4, B denotes a carboxyl, carbo-(thio) ester, (substituted) carboxamide or carboxanilide, carbohydroxy(alkoxy)-amide, (substituted) carbohydrazide or (substituted) oxazoline group, X and Y denote, inter alia, alkyl or, together, spiroalkyl, Z denotes a carbo-(di)(thio) ester, carboxyl, (substituted) (thio)-carb-oxamide or -carboxanilide group or the radical of a ketone-acid or of a ketone-ester and R1, R2, R3 and R4 denote H or are identical or different and denote halogen, alkyl, alkoxy, alkoxycarbonyl, halogenoalkyl, NO2, CN, (sub-stituted) phenyl or phenoxy, or two of these radicals can form a -CH=CH-CH=CH- group, are useful total or selective herbicides for application by the pre-emergence and, in some cases, the post-emergence method.
Patent CA-1234301-A (CA)
Inventor: FRAZER BENJAMIN F
IPC: F16H55/36
Filed: 1985-02-06
Granted: 1988-03-22
Abstract: ABSTRACT     A pulley has a planar end wall and an annular wall extending axially outwardly therefrom.          The annular wall is formed with belt receiving grooves and the end wall is formed with a central opening for mounting the pulley on a hub or shaft.          A stamped sheet metal washer having a generally annular configuration is formed with a central hole and an integral projection extending radially outwardly from the outer edge of the washer.  The washer is firmly attached to the end wall of the pulley preferably by welding or by bonding with an acrylic structural adhesive  with the central hole of the washer being concentric to the central opening of the end wall.          The projection is positioned to counterbalance any unbalance in the annular wall that may have developed therein during forming of the pulley.
Patent CA-1205707-A (CA)
Inventor: WALSWORTH FRANK J
IPC: F04B43/06
Filed: 1985-02-19
Granted: 1986-06-10
Abstract: ABSTRACT OF DISCLOSURE       Disclosed herein is an internal combustion engine comprising a crankcase subject to cyclical conditions of relatively high and low pressures defining a crankcase pressure amplitude which varies in accordance with variation in engine speed, and a pressure actuated motor comprising a housing, a movable wall located in the housing and dividing the housing into low and high pressure chambers which inversely vary in volume relative to each other, and ducts connecting the crankcase to the low and high pressure chambers so as to create therebetween a pressure differential having an amplitude which varies in accordance with variation in crankcase pressure amplitude, whereby the movable wall reciprocates with a stroke length which varies in accordance with variation in the crankcase amplitude.
Patent CA-1273923-A (CA)
Inventor: CLAUSS KARL
IPC: A23L27/30
Filed: 1985-03-21
Granted: 1990-09-11
Abstract: Abstract of the disclosure:     6-Methyl-3,4-dihydro-1,2,3-oxathiazin-4-one 2,2-dioxide is prepared by a) reacting, in an inert organic solvent, a salt of sulfamic acid, which is at least partially soluble therein, with at least approximately the equimolar amount of an acetoacetylating agent, in the presence of an amine or phosphine catalyst, and by cyclizing the acetoacetamide-N-sulfonate which is formed in this reaction, or the free sulfonic acid, b) by the action of at least approximately the equimolar amount of S03, where appropriate in an inert inor-ganic or organic solvent, to give 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one 2,2-dioxide, which is produced in the form of the acid in this reaction; it is possible, if desired, to obtain from the acid form c) the appropriate salts by neutralization with bases.            The non-toxic salts - in particular the potassium salt -are valuable synthetic sweeteners.
Patent CA-1257425-A (CA)
Inventor: WARD ROBERT S JR
IPC: C08G18/32
Filed: 1985-05-17
Granted: 1989-07-11
Abstract: ABSTRACT OF THE DISCLOSURE            Polymeric materials are provided characterized by hard segments and copolymer soft blocks comprising hydrophobic and hydrophilic components.  The polymeric materials may be mixed with a base polymer and/or inorganic salts.  The polymeric  materials  and  mixtures  containing  same  are characterized by  improved moisture  vapor  transmission rates.  The polymeric materials may be formed into films for use  as wound dressings,  burn dressings,  surgical drapes,  semipermeable membranes,  and coatings for tex-tiles.
Patent CA-1237825-A (CA)
Inventor: ROSS MILTON I
IPC: H01L23/60
Filed: 1985-05-23
Granted: 1988-06-07
Abstract: ABSTRACT OF THE DISCLOSURE           Encapsulated electronic circuit devices as well as methods and molding apparatus for making same are disclosed.  For example, an integrated circuit "die" (or "chip") and the lead frame (or frames) to which it is physically affixed and electrically connected are positioned in a mold between stacks of resin impregnated fibrous layers of predetermined shape and size.  The layers are then compressed under heat and pressure causing them to fuse together about the die and its lead frame(s).  This forms a laminated protective sealed encapsulation for the die and adjacent portions of the lead frame(s), without causing undue damage to the delicate lead wires electrically connecting the die to the lead frame. Such multiple laminated layers of resin and fibers, which preferably include woven glass cloth or similar materials, provide a strong, resilient integrated circuit chip "carrier" (of either the "leaded" or "leadless" variety) which may conveniently include multiple lead frames, heat conductive members, strengthening members and the like.  A window may be provided in the layers to provide a space for the chip.  Also, metallic layers may also be provided to enhance performance of the package.
Patent CA-1242275-A (CA)
Inventor: KNOWD MICHAEL J
IPC: G11B5/027
Filed: 1985-06-27
Granted: 1988-09-20
Abstract: Circuitry For Characterizing Speech For Tamper Protected Recording Abstract Circuitry usable in a tamper protected recording system for characterizing audio signals at the time of recording including a filter (10) for selecting a portion of the audio signal, a zero crossing detector (14) to detect zero crossings, a threshold detector (16) to determine when the threshold of the detector is satisfied, a first microprocessor (18) for counting the zero crossing detections for successive time intervals and determining for each of the time intervals whether the threshold was satisfied and a second microprocessor (20) for converting the counts and threshold information into data signals that can be recorded with the audio signal.
Patent CA-1268500-A (CA)
Title: Ferrure de verrouillage, notamment pour ouvrant  coulissant
Inventor: PREVOT GERARD
IPC: E05B65/08
Filed: 1985-09-26
Granted: 1990-05-01
Abstract: Abrégé Ferrure de verrouillage notamment pour ouvrant coulissant. L'invention concerne une ferrure de verrouillage, notamment pour ouvrant comprenant dans son boîter un coulisseau relié à un pêne et comportant un dispositif de verrouillage verrouillant le pêne dans sa position de verrouillage. Cette ferrure de verrouillage est caractérisée en ce que le dispositif de verrouillage est commandé par une poignée solidaire du coulisseau L'invention concerne la quincaillerie du bâtiment.
Patent CA-1240695-A (CA)
Inventor: FALK ROBERT A
IPC: C08F220/34
Filed: 1985-09-27
Granted: 1988-08-16
Abstract: DI-PERFLUOROALKYL-CARBAMYL ACRYLATES AND METHACRYLATES    Abstract Di-perfluoroalkyl containing acrylate and methacrylate derivatives of the formula (1)                   wherein Rf is perfluoroalkyl, omega-hydroperfluoroalkyl, or perfluoroalkoxy substituted perfluoroalkyl, R1 is alkylene having from 1 to 12 carbon atoms, X is -S- or -SO2-, Alk is alkanetriyl  having from 1 to 14 carbon atoms, Q is phenylene which is unsubstituted or substituted by chlorine, bromine, alkyl of 1 to 6 carbon atoms or alkoxy of 1 to 6 carbon atoms, n is 0 or 1, R2 is alkylene having from 1 to 12 carbon atoms and R3 is hydrogen or methyl; their preparation and use as hydrophobic and oleophobic finishes for cellulosic, natural and synthetic polyamide substrates are disclosed.
Patent CA-1267607-A (CA)
Inventor: KATSUBE JUNKI
IPC: A61K31/195
Filed: 1985-10-03
Granted: 1990-04-10
Abstract: ABSTRACT            METHOD FOR TREATMENT OF ANTIDIURESIS         Diuretics containing an efficient amount of L-or DL-threo-3-(3,4-dihydroxyphenyl)-serine or a pharma-ceutical acceptable salt thereof are applied orally or parenterally.  They are effective particularly to anasarca patients.  They will also be effective to myxedema, Addison's disease and other ADH-excessive syndrome patients.  They are applied in the form of tablet, capsules, syrup, suspension or liquid.
Patent CA-1210076-A (CA)
Inventor: BOWERS WILLIAM J
IPC: A61B18/12
Filed: 1985-10-24
Granted: 1986-08-19
Abstract: ELECTROSURGICAL GENERATOR     ABSTRACT OF THE DISCLOSURE            A solid-state electrosurgical generator is disclosed which provides three separate output circuits that may be operated from a single common power source.  One of the output circuits produces an output electrical waveform which is optimized for cutting and coagulation with monopolar electrodes.  Another source provides a waveform which is optimized for cutting and coagulation with bipolar electrodes.  The other electrosurgical source produces an output electrical waveform which is optimized for fulguration.  The output circuits produce the optimized waveforms by appropriately processing electrical power provided by a D.C. power source.  In order to do this, the output circuits may be connected to the power source by means of four semiconductor switches which may be arranged in either a bridge configuration for one output circuit or in a series arrangement for the other output circuit.  The switches are, in turn, controlled by a timing circuit which provides different timing waveforms to the switches depending on their configuration.
Patent CA-1218893-A (CA)
Inventor: CONSTANTINESCU SPIRIDON YONGE
IPC: G03B1/00
Filed: 1985-10-28
Granted: 1987-03-10
Abstract: AQUATIC CAMERA                      ABSTRACT           An aquatic camera apparatus consisting of a transparent screen separating an upper dark dry chamber from a lower vacuum wet chamber. The upper dark chamber is provided with a folding camera obscure and a looking mask for the viewer. A drainage valve is provided over the transparent screen for cleaning it and a vacuum valve is provided on top of the wet chamber expelling the air from inside. The device can be used manually or mechanically, outboard or inboard from any watercraft for the purpose of searching the flora and fauna inside any body of clear water. The device can be also used as a direct fishing aid, or for taking underwater photographs.     - 1 of 16 -
Patent CA-1258690-A (CA)
Inventor: JOHNSON HARLAN B
IPC: H01M50/489
Filed: 1985-11-01
Granted: 1989-08-22
Abstract: ABSTRACT OF THE DISCLOSURE          Microporous polymeric battery separator, e.g., rubber separa-tors, exhibit reduced electrical resistance when reinforced with a sili-ceous filler composed of agglomerates of essentially hollow spherical precipitated siliceous particles.  The siliceous filler is characterized by a surface area of between about 50 and 250 square meters per gram, a predominant hollow spherical unit particle size of between about 0.005 and about 5.0 microns and an oil absorption of from about 150 to 300 grams per hundred grams of siliceous filler.  The hollow spherical precip-itated siliceous filler can be prepared by precipitating siliceous pig-ment onto finely divided water insoluble inorganic salt, e.g., calcium carbonate, and subsequently removing the insoluble inorganic salt, e.g., by leaching with an acid such as hydrochloric acid.
Patent CA-1257696-A (CA)
Inventor: LANDREVIE JACQUES
IPC: G06K7/00
Filed: 1985-12-02
Granted: 1989-07-18
Abstract: ABSTRACT OF DISCLOSURE            An  electrical  connecting  device  for  the  temporary connection  of  electrical  or  electronic  circuits comprises a contact area and a contactor device.   The contact area has a plurality of concentric zones of conductive material.   Each zone is isolated from the other and a first electrical or electronic circuit is coupled to the conductive zones.   The contactor device has a plurality of contacts so disposed that when the contactor device is located with the contact area one or more contacts can be bought into engagement with the conductive  zones  of  the  contact  area.    A  second electrical  or  electronic  circuit  is  coupled  to  the contacts.            The contact area can be mounted with a suitable carrier such as a label which can be attached to an animate or inanimate object to be  identified.    By placing the contactor   in  engagement  with   the   contact  area information can be read from or programmed into the first circuit by a data processing device coupled to the contactor.
Patent CA-1242590-A (CA)
Title: Systeme de verrouillage inviolable
Inventor: BENNARDO GILBERT
IPC: B65D55/02
Filed: 1985-12-11
Granted: 1988-10-04
Abstract: La présente invention se rapporte a un système de verrouillage inviolable de la fermeture d'une enceinte ou d'un présentoir, se composant d'un boîtier en deux moitiés articulées comportant sur le côté opposé à leur charnière des pattes de fermeture destinées à être maintenues l'une contre l'autre par ce système, caractérisé en ce qu'il se compose d'une pince destinée à coiffer ces deux pattes, et entre lesquelles est monté un axe transversal, une échancrure verticale pratiquée dans lesdites pattes permettant le passage de cet axe à la mise en place de ladite pince, deux équipages étant montés coulissants sur cet axe, entre le côté extérieur de chaque patte et la face correspondante de la pince, des moyens étant prévus pour que ces équipages viennent se placer dans des logements pratiqués dans les faces externes des pattes en immobilisant alors la pince sur les pattes, des moyens extérieurs étant prévus pour solliciter lesdits équipages en sens inverse pour les dégager desdits logements, en vue d'autoriser l'extraction de la pince et de libérer les pattes dudit boîtier pour permettre son ouverture.
Patent CA-1260085-A (CA)
Inventor: BLONDER GREG E
IPC: H01G5/16
Filed: 1986-01-07
Granted: 1989-09-26
Abstract: VARIABLE GAP DEVICE AND METHOD OF MANUFACTURE          Abstract A variable gap device which comprises a suitable material with a cavity formed therein mounted over a body. Elements are formed on the surface of the body and on the top surface of the cavity.  In one embodiment, the elements are electrodes of a variable capacitance device, and in another embodiment the elements are partial or total reflectors of incident light from an optical fiber.  The surface of the cavity opposite the body is preferably flat and of the order of microns from the body.           The device is fabricated by forming a removable layer over a temporary substrate.  An appropriate element pattern is formed over the removable layer and the layer is etched in a configuration which will define the cavity. The deformable material is encapsulated over this structure and then removed from the substrate with the element remaining in the cavity.  Any removable material remaining in the cavity can then be etched away.