baber/WOPTO huggingface dataset:
Patent CA-1280589-C (CA)
Title: Composition and method of stimulating subterranean formations
Inventor: DILL WALTER R
IPC: C09K8/528
Filed: 1987-06-10
Granted: 1991-02-26
Abstract: COMPOSITION AND METHOD OF STIMULATING        SUBTERRANEAN FORMATIONS                      Abstract of the Invention A method and composition for stimulating sub-terranean formations containing iron deposits.  The com-position comprises a compound comprising at least one member selected from the group consisting of dihydroxymaleic acid, salts of dihydroxymaleic acid and gluconodeltalactone.  The method comprises contacting the subterranean formation in an appropriate manner with the above-described composition pre-sent in an amount sufficient to sequester iron.
Patent CA-1304158-C (CA)
Title: Reuseable write enable/disable indicator for a video tape cassette
Inventor: LOWRY ALAN B
IPC: G11B23/28
Filed: 1987-07-06
Granted: 1992-06-23
Abstract: ABSTRACT OF THE DISCLOSURE    A write enable tab is repeatedly movable from a first position, enabling writing on a signal storage unit, to a second position, disabling writing thereon.  The write enable tab preferably includes a central body and a flexible member which exert force against first and second walls of a tape cassette shell.  The flexible member is attached at a first end to the central body.  A second end of the flexible member projects into first and second depressions in the first wall when the central body is in the first and second positions, respectively.
Patent CA-1312503-C (CA)
Title: Life raft
Inventor: GIVENS JAMES A
IPC: B63C9/18
Filed: 1987-07-08
Granted: 1993-01-12
Abstract: Abstract A life raft having a flotation platform including a peripheral buoyant member and a flexible floor spanning the buoyant member is provided with a stabilization chamber located beneath the flotation platform which fills with water when the life raft is deployed.  A bailing chamber is located between the stabilization chamber and the flotation platform and receives water from the flexible floor and exhausts water from the bailing chamber in response to pressure exerted on the bailing chamber by wave action, so that the life raft is made self bailing by wave action. The raft may have a flexible diaphragm attached to it defining an air pump chamber and connected to a conduit extending upwardly through which air can be drawn into the air pump chamber.  A weighted chamber depends from the flexible diaphragm and fills with water when the raft is deployed, to exert a force on the diaphragm increasing the volume of the air pump chamber in response to upward motion of the raft. A check valve allows air to pass from the air pump chamber into the buoyant member in response to submerging motion of the raft.  This renders the raft self inflating by wave action.
Patent CA-1305489-C (CA)
Title: Process for eliminating cholesterol contained in a fatty substance of animal origin
Inventor: COURREGELONGUE JEAN
IPC: C11B3/02
Filed: 1987-07-15
Granted: 1992-07-21
Abstract: A B S T R A C T         The invention relates to a process for elimi-nating cholesterol contained in a fatty substance of animal origin used in human diet of the group consist-ing of butter, suet and lard, which process comprises putting the liquefied fatty substance into contact with a cyclodextrin, continuing this contact under stirring for 30 minutes to 10 hours at a temperature between the fusion temperature of the fatty substance and 80°C, in such a way as to allow the formation of complexes be-tween the cholesterol and the cyclodextrin, and sepa-rating the said complexes by entrainment in water and separation of the aqueous phase.
Patent CA-1303569-C (CA)
Title: Pump dispenser
Inventor: PRITCHARD ROBERT W
IPC: B65D83/00
Filed: 1987-07-30
Granted: 1992-06-16
Abstract: ABSTRACT     A dispenser of the type having an elongated reservoir for storing toothpaste or other fluent material, an outlet nozzle at one end of the re-servoir, and a one-way piston at the other end of the reservoir in contact with the fluent material, the one-way piston comprising a body portion having a top surface for contacting material in the reservoir, a flexible annular sealing member for sealingly engaging the inner wall of the re-servoir, and one or more air-venting passages for permitting air trapped between the fluent material in the reservoir and the piston to be vented to the atmosphere as the piston is inserted into the dispenser and into contact with the material.
Patent CA-1280406-C (CA)
Title: Method of and apparatus for producing a heated reproduction asphalt mixture
Inventor: SASAKI HIDEO
IPC: B05D5/10
Filed: 1987-08-19
Granted: 1991-02-19
Abstract: 7.  ABSTRACT OF THE DISCLOSURE:    Disclosed are a method of and an apparatus for producing a heated reproduction asphalt mixture, in which a new material and a normal-temperature waste material, the water content of which is set at a limited range of values, are adapted to be mixed together in the ratio of (90 to 40) : (10 to 60) in terms of weight.  The temperature of heating the new material by means of a dryer is con-trolled to range from 190°C to 350°C so as to be in conformity with the above mixing weight ratio.  Both the materials are mixed and kneaded together in a mixer at a kneading temperature of 150°C or more.  The gas generated within the mixer is exhausted toward a chimney in a state wherein the amount exhausted is made adjustable.
Patent CA-1301032-C (CA)
Title: Log cutting machine
Inventor: KNIGHT MAY
IPC: B27L7/00
Filed: 1987-09-11
Granted: 1992-05-19
Abstract: ABSTRACT LOG CUTTING MACHINE The present specification discloses a log cutting machine.  Known machines are relatively slow in operation.    The present invention provides a cutting machine which has a cyclic operation and which can therefore be operated at fast speeds relative to the prior art machines.  The machine of the present invention comprises a pivotal support which carries a cutting blade, the cutting blade, in use, acting with a reaction surface to produce the required cutting action, said support being pivotal by a cranked drive via a sliding mechanism.
Patent CA-1284721-C (CA)
Inventor: HUNTING RONALD M
IPC: F16L23/04
Filed: 1987-10-19
Granted: 1991-06-11
Abstract: ABSTRACT OF THE DISCLOSURE     A contractible coupling for flared conduit connections of an annular configuration wherein the coupling includes a resilient metal band having tabs at the band ends permitting the band to be opened while contraction is produced by the band resiliency.   A plurality of fingers located along the band lateral edges are deformed inwardly in spaced parallel relationship to the band inner surface to provide circumferentially spaced pressure points on the conduit flares being clamped.
Patent CA-1323038-C (CA)
Inventor: MARSCHNER STEVEN S
IPC: A23D9/04
Filed: 1987-10-21
Granted: 1993-10-12
Abstract: PHYSICAL PROCESS FOR SIMULTANEOUS DEODORIZATION AND CHOLESTEROL            REDUCTION OF FATS AND OILS                              ABSTRACT          Disclosed are physical processes for fats and oils, especially fish oil, involving simultaneous deodorization and cholesterol level reduction.  Either freshly refined or stored oils that have oxidized (reverted fish oil) can be treated.  In the process the fish oil is deaerated, mixed with steam, heated, flash vaporized, thin-film stripped with countercurrent steam, cooled (all steps being performed under vacuum), and then stored under oxygen free conditions. The process provides fish oils which are clean tasting and from which has been removed substantially all of the free or non-esterified cholesterol.
Patent CA-1285387-C (CA)
Inventor: BERTRAM KURT
IPC: B01D39/00
Filed: 1987-08-04
Granted: 1991-07-02
Abstract: ABSTRACT            A process for producing an additive for lubricants and for aqueous fuel mixtures and heating media is described, in which an alkaline aqueous solution of an inverted cane sugar as the main component and containing a hydrocarbon and an alcohol is heated and then cooled.  Use is made of inverted cane sugar with a degree of inversion of approximately 50 to 80% and is heated to approximately 75 to 100°C until a red shade forms.  The additive obtained in this way, mixed with alcohol, water and gasoline, can be used as an excellent fuel and as a substitute for normal gasoline and even superfuel.  A corresponding mixture can also be used as a heating medium.  The characteristics of lubricants can be improved by incorporating this additive.  In addition, the effectiveness of air filters of motor vehicles and internal combustion systems can be improved by impregnating the filter material with the described additive.
Patent CA-1317949-C (CA)
Title: Isocyanates derived from dienes and process and their preparation
Inventor: WATERMAN PAUL S
IPC: C08G18/73
Filed: 1987-10-30
Granted: 1993-05-18
Abstract: 29,718 ISOCYANATES DERIVED FROM DIENES AND PROCESS FOR THEIR PREPARATION             ABSTRACT A process is disclosed for the preparation of novel wholly aliphatic mono- and diisocyanates by thermal frac-turing diurethanes that have been prepared by acid-catalyzed addition of alkyl carbamates to olefinic compounds, especi-ally dienes.  The compounds can be modified or used per se to produce curable compositions, e.g., with polyols.
Patent CA-1294385-C (CA)
Title: Ethylene copolymer compositions
Inventor: HARRELL JERALD R
IPC: C08K3/22
Filed: 1987-11-10
Granted: 1992-01-14
Abstract: TITLE            Ethylene Copolymer Compositions ABSTRACT OF THE DISCLOSURE         Certain ethylene copolymers that contain an ethylene/anhydride graft copolymer and a magnesium hydroxide or aluminum trihydrate flame and smoke retardant have a good balance of strength and flame and smoke retardant properties.  The compositions preferably also contain polyethylene, and/or ionomeric ethylene copolymer and/or an ethylene/propylene elastomer.
Patent CA-1320397-C (CA)
Inventor: JANSSEN JEFFREY R
IPC: B44C1/17
Filed: 1987-11-12
Granted: 1993-07-20
Abstract: Abstract A process for preparing a transfer graphic article having a protective clear coat in precise registration therewith such that the graphic has rounded and sealed edges, and the article produced thereby. The edges of the underlying adhesive are sealed by the clear coat such that improved solvent resistance is achieved.
Patent CA-1299505-C (CA)
Title: Rotation device with a sealing plate and method of fabricating same
Inventor: KURIBARA MOTOAKI
IPC: F16D41/06
Filed: 1987-11-19
Granted: 1992-04-28
Abstract: ABSTRACT OF THE DISCLOSURE    There is disclosed a rotation device, such as an overrunning clutch and a ball bearing.  The rotation device includes: a cylindrical inner member; a hollow cylindrical outer member coaxially and rotatably disposed on the inner member; an annular extension integrally formed with the outer periphery of the rear end face of the outer member; and an annular sealing plate for aligning the axes of the outer and inner members with each other.  An inner space for receiving a lubricating agent is defined by the inner member and the inner face of the outer member.  The inner space opens to the rear end face of the outer member.  The annular extension has an inwardly opening annular groove circumferentially formed therein.  The sealing plate rotatably fits around the inner member and fixedly fits in the annular extension in such a manner that the opening of the inner space is closed by the sealing plate.  The sealing plate includes:  an annular plate body covering the opening of the inner space with one of its opposite faces in contact with the rear end face of the outer member; an annular peripheral wall integrally formed with the outer periphery of the other face of the plate body; and an annular ridge integrally formed around the peripheral wall and protruding into the groove of the annular extension.
Patent CA-1292481-C (CA)
Title: Method for weighing webs during manufacturing
Inventor: ASBERG PER A
IPC: G01G11/00
Filed: 1987-12-10
Granted: 1991-11-26
Abstract: Abstract A device for continuously weighing a web (2) at the manuf-acture of fibre board. The device comprises a forming wire (1) and forming devices (3,5) for applying fibre material on the wire (1) and adjusting the thickness of the web (2). A weighing device (6) is located above the wire (1) directly after the forming device (3,5). Said weighing device (6) comprises a scales plate (7) and a separate doctor plate (8) located at the leading edge of the scales plate. The weighing takes place when the web (2) slides over the scales plate (7).
Patent CA-1297903-C (CA)
Title: Process for the separation of sulphuric acid from aqueous mixtures thereof with paraffin-sulphonic acids
Inventor: FAGGIAN LUCIO
IPC: C07C303/44
Filed: 1987-12-23
Granted: 1992-03-24
Abstract: 1.             "PROCESS FOR THE SEPARATION OF SULPHURIC ACID FROM AQUEOUS MIXTURES THEREOF WITH PARAFFIN-SULPHONIC ACIDS"                     Abstract The mixtures from which sulphuric acid must be separated according to the present invention are those which derive from the sulphoxidation of (C12-C18)-n-paraffins with SO2 and O2 in the presence of water and of U.V. light at a temperature comprised within the range of from 25 to 50°C, after the removal of n-paraffins, which separate spontaneously, and of SO2 excess, and after undergoing one of the following treatments: a) dehydration, by known systems of the residual mixture, at least until said mixture becomes cloudy (due to the formation of a biphasic system), extraction of not-sulphoxidated paraffins from the dehydrated, cloudy mixture, or from the supernatant phase of the biphasic system, with supercritical CO2, at a temperature comprised within the range of from 32°C to 80°C, under a pressure comprised within the range of from 75 to 350 bars, and with a CO2/paraffin-sulphonic acids weight ratio of from 1/1 to 50/1. b) addition of H2SO4 to the residual mixture, at least until said mixture becomes cloudy (due to the formation of a biphasic system), extraction with 2. supercritical CO2, from the cloudy mixture, or from the supernatant phase of the biphasic system, of the residual paraffins under such conditions as shown under (a); c)   addition to the residual mixture of an aliphatic alcohol containing a number of carbon atoms lower than, or equal to, 4, preferably isopropanol, until a biphasic mixture is formed, extraction from said biphasic mixture of the residual paraffins, with supercritical CO2, under such conditions as reported under (a).   The mixture of paraffin-sulphonic acids free, or substantially free, from paraffins, obtained by means of the above disclosed treatments from (a) to (c) (the "refined mixture") still contains, besides the paraffin-sulphonic acids, a considerable amount of H2SO4.   In order to remove said sulphuric acid, according to the process of the present invention, the refined mixture is mixed with one or more halogenated solvent(s), possibly in mixture with H2SO4, in such way a separation being obtained of water and sulphuric acid from the refined mixture, and the residual mixture is finally submitted to evaporation, for the removal of the halogenated solvent(s), which are used again, concentrated paraffin-sulphonic acids being obtained.
Patent CA-1296854-C (CA)
Inventor: WARREN THOMAS C
IPC: B29K105/02
Filed: 1988-01-07
Granted: 1992-03-10
Abstract: ABSTRACT Disclosed is a heat-shrinkable, oriented multi-layer packaging film. The film has at least two layers comprising EVA. One of the EVA layers is of EVA having a melt index different from the melt index of the EVA of the other layer or layers. 404/870617/1/
Patent CA-1299326-C (CA)
Inventor: LINSS GERHARD
IPC: B29C49/02
Filed: 1988-02-11
Granted: 1992-04-28
Abstract: ABSTRACT       In an apparatus for manufacturing a hollow body, said hollow body comprised of an injection-molded head piece a body part      formed by blowing, e.g., blow molding, a preform segment      which segment is integral with the head piece, wherewith the said apparatus comprises a ring-shaped nozzle      wherein  a ring-shaped nozzle opening      is defined between a nozzle cone piece     and a nozzle opening piece    ,  said apparatus further comprising a withdrawal device      operative with respect to the ring-shaped nozzle , which withdrawal device is axially reciprocally movable and has a recess     ,  it is desired to enable production of different and/or novel configurations of the body parts or the hollow body.  This is achieved by means of an additional mold device which is provided for an additional forming operation operative on the preform segment      adjoining the head piece     , which operation relates to the walls of the body part     , wherewith said additional mold device provides an offset       in the radial sense  with respect to the ring-shaped nozzle opening.       By providing a specific radial  offset between the nozzle opening and other parts of the apparatus, one can produce special configurations of the preform segment prior to the blowing operation.
Patent CA-1310389-C (CA)
Title: System for detecting underground objects
Inventor: ITO MASAAKI
IPC: G01V3/11
Filed: 1988-03-10
Granted: 1992-11-17
Abstract: ABSTRACT OF THE DISCLOSURE           A system for detecting underground objects which uses reflected wave profile data collected for obtaining a detected image output and subjects the data to a sequence of synthetic aperture processing, in which set values of the dielectric constant are successively varied, and obtains the actual dielectric constant of the soil in which the targets are buried by evaluating the results of the aforesaid synthetic aperture processing, whereby the need for special data collecting work only for obtaining the actual dielectric constant is eliminated.
Patent CA-1285435-C (CA)
Title: Method and apparatus for electrostatic spray coating
Inventor: WELDON WILLIAM F
IPC: B05B5/08
Filed: 1988-03-24
Granted: 1991-07-02
Abstract: METHOD AND APPARATUS FOR ELECTROSTATIC SPRAY COATING                       ABSTRACT            Method  and  apparatus  are  provided  for electrostatically  spray coating an  article  in a coating zone with a liquid coating material, such as paint, wherein air is supplied to the spray head of an air spray gun at an atomizing air flow rate in excess of 5 CFM and at a delivery pressure of less  than  15 psi  to atomize the  liquid coating material.  At this combination of relatively low pressure  and  relatively high volume  of air  the transfer efficiency is substantially higher than for conventional air spray guns.  A turbine unit filters and heats the air so that the air has a temperature in excess of 70°F at the spray head. An elongated conductive rod is reciprocably sup-ported within a nozzle of the spray head to create an  electrical  charge  differential  between  the atomized liquid coating material and the article in the coating zone when charged by a high voltage source.  Preferably, the rod is positioned within a liquid discharge orifice of the nozzle to alterna-tively open and close the nozzle.  Also, prefer-ably, the air flow rate at the spray head is in the range of 5-35 CFM, and the air delivery pressure at the spray head is in the range of three to nine psi over atmospheric pressure.
Patent CA-1311201-C (CA)
Title: Desazapurine-nucleoside derivatives, processes for the preparation thereof, pharmaceutical compositions containing them and the use thereof fornucleic acid sequencing and as antiviral agents
Inventor: SEELA FRANK
IPC: A61K31/52
Filed: 1988-04-08
Granted: 1992-12-08
Abstract: ABSTRACT          Desazapurine-nucleoside derivatives, processes for the preparation thereof, pharmaceutical compositions containing them and the use thereof for nucleic acid sequencing and as antiviral agents The present invention provides desazapurine-nucleoside derivatives of the general formula:-(I)   wherein X is a nitrogen atom or a methine radical, W is a nitrogen atom or a   radical, R1, R2, R3 and R4, which can be the same or different 3 are hydrogen or halogen atoms, hydroxyl or mercapto groups, lower alkyl, lower alkylthio, lower alkoxy, aralkyl, aralkoxy or aryloxy radicals or amino groups optionally substituted once or twice, R5 is a hydrogen atom or a hydroxyl group, R6 and R7 are each hydrogen atoms or one of them is a halogen atom or a cyano or azido group or an amino group optionally substituted once or twice, whereby one of R6 and R7 can also be a hydroxyl group when X is a methine radical and, in addition, R5 and R7 can together also represent a further valency bond between C-2' and C-3' and  is a hydrogen atom or a mono-, di- or tri-phosphate group, as well as the tautomers and salts thereof and nucleic acids which contain one or more compounds of general formula (I) as structural components; these new compounds are use-ful for nucleic acid sequencing and as antiviral agents.
Patent CA-1313055-C (CA)
Title: Method of measuring polarization and birefringence in single mode optical fibres
Inventor: CALVANI RICCARDO
IPC: G01N21/23
Filed: 1988-05-18
Granted: 1993-01-26
Abstract: ABSTRACT        In a method of measuring the local polarization state within a fibre, or measuring the beat length characterizing the birefringence of an optical fibre, a constant force is applied to the fibre, perpendicular to its axis, to cause a coupling of energy from the funda-mental radiation propagation mode of the fibre into a secondary mode which is radiated.  The intensity of the scattered radiation associated with the secondary mode is then measured.  This intensity is a function of the local state of polarization of radiation in the fibre.  By displacing the point at which the force is applied stepwise along the axis of the fibre and by measuring at each point the intensity of the scattered radiation, the beat length is obtained as the distance between two consecutive points at which the scattered radiation has the same intensity.
Patent CA-1326397-C (CA)
Inventor: UCHIDA YASUZO
IPC: A23J1/04
Filed: 1988-06-27
Granted: 1994-01-25
Abstract: ABSTRACT OF THE DISCLOSURE    A  process  is  provided  herein  for  producing  a proteinous material.  The process comprises the first step of coarsely grinding fish bodies including bones and/or shells,  from  which  the  internals  had  been  removed optionally together with heads and/or skins.   Then three alterantive further steps may be carried out, namely (1) fermenting the coarsely ground fish bodies with an enzyme and/or a microorganism,  inactivating the enzyme and/or microorganism,  and then  finely  grinding  the  fermented material to give a particle size of bones and/or shells of 100µ or less; or (2) finely grinding the coarsely ground fish bodies to give a particle size of bones and/or shells of 100µ or less, fermenting the same with an enzyme and/or a microorganism, and then inactivating the enzyme and/or the microorganism;  or  (3)  finely grinding the coarsely ground fish bodies to give a particle size of bones and/or shells of 100µ or less while fermenting the same with an enzyme and/or a microorganism and then inactivating the enzyme and/or the microorganism.
Patent CA-1320899-C (CA)
Title: Turbidimetric method for the determination of serum lipase
Inventor: ROBINSON JACK B JR
IPC: C12Q1/44
Filed: 1988-06-30
Granted: 1993-08-03
Abstract: ABSTRACT OF THE DISCLOSURE         A reagent system for determining serum lipase which comprises lipid particles having a diameter of less than 0.5 microns.  The reagent system has improved stability against sedimentation and coalescence.  A turbidimetric method for the determination of serum lipase is also disclosed wherein a serum sample is added to a suspension of lipid particles having a diameter of less than 0.5 microns and the amount of lipase present in the serum sample is determined by measuring a change in the turbidity of the suspension.