baber/WOPTO huggingface dataset:
Patent CA-1135996-A (CA)
Inventor: BRANDELL JOHN T
IPC: F04B47/02
Filed: 1981-07-29
Granted: 1982-11-23
Abstract: ABSTRACT OF THE DISCLOSURE           A downhole tool suction screen assembly includes a top screen assembly adapter, a lower screen assembly adapter, and a tubular screen mandrel connected between the top and lower screen assembly adapters.  A cylindrical pump screen is disposed about an outer surface of the screen mandrel.  A flow tube is disposed concentrically within the screen mandrel.  An inner mandrel is disposed concentrically within the flow tube.          A seal mandrel engages upper ends of the inner mandrel and flow tube.  The seal mandrel has a central bore communicated with an interior of the inner mandrel and has a longitudinal bore communicated with an annulus between the inner mandrel and the flow tube.  The seal mandrel also includes a central outer cylindrical surface spaced radially inward from an inner surface of the upper screen assembly adapter.  The seal man-drel includes first and second successively reduced diameter upwardly extending cylindrical outer surfaces which are con-nected by an upward facing shoulder.  The seal mandrel further includes first and second successively reduced diameter down-wardly extending cylindrical outer surfaces connected by a downward facing shoulder.  The longitudinal bore of the seal mandrel communicates the upward and downward facing shoulders of the seal mandrel.
Patent CA-1185478-A (CA)
Inventor: HICE JAXON O
IPC: A23L13/00
Filed: 1981-08-12
Granted: 1985-04-16
Abstract: Abstract of the Disclosure A method and apparatus for producing a restructured food product from small forms thereof  by comminuting such small forms to provide a fluent paste,  injecting the paste under high pressure into mold cavities where the paste is rapidly heated while it is confined within the mold cavity and maintained at an elevated pres-sure  whereby a restructured food product is formed which has gen-erally the same characteristics and qualities of the original food product and which retains the organoleptic properties of the origi-nal products that arc frequently lost in conventional found process-ing methods.
Patent CA-1122266-A (CA)
Inventor: CROSS JAMES
IPC: B26F1/28
Filed: 1981-10-14
Granted: 1982-04-20
Abstract: ABSTRACT OF THE DISCLOSURE            In electrical spark treatment apparatus, more consistent and controllable sparking from multiple spark gaps is achieved by providing individual energy storage components for each spark gap, including a capacitance and an induc-tance in series with each gap, and a path for charging current in parallel with each gap, and a common means for charging the capacitors and then discharging them to break down the spark gaps.  A common damping means is associated with the switching device to absorb  surplus energy released during discharge of the capacitors.
Patent CA-1154814-A (CA)
Inventor: LJUNG BO H G
IPC: G01C19/66
Filed: 1981-12-09
Granted: 1983-10-04
Abstract: ABSTRACT OF THE DISCLOSURE A transducer for driving a spoke of a ring laser gyroscope is fastend at a point of neutral radius on the spoke. The transducer may be a piezoelectric crystal provided with a pair of electrodes which are driven in push-pull by an AC voltage to dither the gyroscope.
Patent CA-1165463-A (CA)
Inventor: LAPOTIN DAVID P
IPC: H01L27/08
Filed: 1982-01-12
Granted: 1984-04-10
Abstract: ABSTRACT OF THE DISCLOSURE          Waveform generating apparatus for synthesizing a non-linear waveform by sampling voltage levels along a series string of resistances.  The series string of resistances is a linear resistance fabricated in a mono-lithic integrated circuit structure and includes a series of contiguous resistance elements of approximately the same physical configuration and of approximately equal resistance value.  Each resistance element has a projection or nub.  Particular ones of the nubs serve as source regions for MOS switching transistors at the sampling point.  The intervening nubs are unconnected. The symmetry of the structure compensates for errors otherwise introduced by the presence of source region nubs at sampling points spaced in a non-linear relation-ship.
Patent CA-1165925-A (CA)
Title: Vinyl acetate-ethylene emulsions for non-woven goods
Inventor: IACOVIELLO JOHN G
IPC: C08F218/02
Filed: 1982-03-31
Granted: 1984-04-17
Abstract: ABSTRACT    This invention relates to a vinyl acetate-ethylene copolymer containing emulsion particularly adapted for the preparation of nonwoven goods.  The vinyl acetate-ethylene emulsion is prepared by an improved process for producing an aqueous emulsion suitably adapted for producing non-woven goods said emulsion containing a vinyl acetate-ethylene copolymer wherein said copolymer contains from about 75-96% by weight of vinyl acetate. It is produced by forming an aqueous suspension of vinyl acetate, ethylene, and stabilizer, initiating the polymerization of the reaction mixture by the addition of catalysts, and adding from about 0.5-10% by weight of the vinyl acetate of a crosslinkable monomer.  The improvement for enhancing the absorptivity of the copolymer comprises: pressurizing the reactor with ethylene to an initial ethylene equilibrium pressure of from about 100 to 1,000 psig; initiating the reaction mixture by the addition of catalyst at a temperature from about 10-35°C and bringing the reaction mixture to a reaction temperature of from 45-85°C and operating pressure within a period of not more than 2 hours and the reaction temperature exceeds the initiation temperature by at least 20°C; adding the crosslinkable monomer at a substan-tially uniform rate such that the major portion of monomer has been added by the time the vinyl acetate content in the emulsion has been reduced to a level of from 3-25% by weight of the emulsion; and continuing polymerization of the reaction mixture until the vinyl acetate content in said emulsion is reduced below about 1% by weight.
Patent CA-1172580-A (CA)
Inventor: JONES WILLIAM H
IPC: B01D46/12
Filed: 1982-04-26
Granted: 1984-08-14
Abstract: ABSTRACT OF THE DISCLOSURE       In known air filter assemblies, a mechanism is provided for vacuum cleaning of the filter has been located entirely on the upstream side of the filter.  In the present filter assembly the vacuum head is mounted on a carriage which is located on the upstream side of the frame which supports the filter and a major portion of the drive mechanism which drives the carriage relative to the filter frame is located on the downstream side of the filter frame.  This arrangement serves to reduce the likelihood of contamination of the drive mechanism.
Patent CA-1208161-A (CA)
Inventor: MAHR TIBOR G
IPC: B32B27/28
Filed: 1982-04-29
Granted: 1986-07-22
Abstract: TITLE                       ABSTRACT A surface treatment for ethylene/vinyl acetate copolymer film resulting in an elastomeric, heat sealable film which retains its transparency after release from 200 percent elongation.  The treatment comprises irradiation and controlled surface hydrolysis and, optionally, subsequent attachment of mineral particulates to the surface of the film with or without the use of coupling agents.
Patent CA-1227654-A (CA)
Inventor: SEDLEY BRUCE S
IPC: E05B47/00
Filed: 1982-06-17
Granted: 1987-10-06
Abstract: ABSTRACT           A locking mechanism actuated by a magnetic key is provided with an optimum number of combinations by providing locking magnets with a stronger magnetic field at one end than at the other end .  The tendency for one magnet to influence the movement of any adjacent magnet is thus reduced, thereby permitting the coding magnets to be placed closer together and increasing the number of possible combinations within a given area.
Patent CA-1173427-A (CA)
Title: Tool for formation of holes in macroporous  compressible soils
Inventor: FEKLIN VALENTIN I
IPC: E02D7/22
Filed: 1982-06-29
Granted: 1984-08-28
Abstract: TOOL FOR FORMATION OF HOLES IN MACROPOROUS             COMPRESSIBLE SOILS      ABSTRACT      The tool body has a cylindrical calibrating portion, co-axial portions with surfaces for the compaction of the soil and radii decreasing stepwise in the direction away from the calibrating portion, and terminating in an end piece. The body has also transition portions with surfaces for the compaction of the soil, forming a smooth transition from a coaxial portion of a larger radius to an adjacent coaxial portion with a smaller radius. The invention consists in that the surface for the com-paction of the soil of each coaxial portion is a conical sur-face having the configuration of a ribbon wound from the cali-brating portion to the end  piece and comprising the transition portions.     The invention is useful for the formation of holes for cast-in-place piles, particularly short ones, in soft satura-ted soils.
Patent CA-1187524-A (CA)
Title: Stick for ringette or the like and insert therefor
Inventor: EKVALL LARRY B FROOM CRESCENT
IPC: A63B59/70
Filed: 1982-08-06
Granted: 1985-05-21
Abstract: STICK FOR RINGETTE OR THE LIKE AND INSERT THEREFOR          ABSTRACT OF THE DISCLOSURE          "Ringette" requires the use of a stick, the one end of which engages through the ring and rapidly becomes worn due to engagement with the ice surface thereby result-ing in a sharpened end which is dangerous and is in fact banned by the rules of the game.  A T-shaped metal or plas-tic end is formed with the stem of the T formation inserted within a slot formed in the lower end of the stick.  An an-nular groove is formed around the outside of the stick spaced from the end and located intermediate the ends of the stem so that a thread or cord such as a synthetic resin or glass fibre thread, together with resin, can be wrapped around the end portion within the groove to retain the insert in position and to prevent the end of the stick from splitting at the slot.
Patent CA-1184364-A (CA)
Inventor: IHARA HIROYUKI
IPC: C10G1/06
Filed: 1982-09-10
Granted: 1985-03-26
Abstract: ABSTRACT OF THE DISCLOSURE           A continuous process for the production of a solvent for use in the liquefaction of coal is described. The process comprises hydrogenating a mixture of 100 parts by weight of a hydrocarbon mixture and from 0.2 to 10 parts by weight of phenol and/or alkylphenol.  The hydrocarbon mixture contains at least 50% by weight of a polycyclic (from tricyclic to pentacyclic) aromatic hydrocarbon or its alkyl derivative.  The hydrocarbon mixture is distilled away in a proportion of at least 80% when heated at a temperature of from 320 co 550°C. The hydrogenation of the hydrocarbon mixture and phenol and/or alkylphenol may be carried out with or without the addition of from 0.05 to 0.5% by weight (calculated as sulfur) of an easily desulfurizable sulfur compound in a high temperature and pressure hydrogen atmosphere in the presence of a catalyst containing the sulfide(s) of Group VIII metal and/or Group VI metal of the Periodic Table to prepare a partially hydrogenated product result-ing from the partial hydrogenaction of the aromatic ring of the polycyclic aromatic hydrocarbon or its alkyl derivative.
Patent CA-1201908-A (CA)
Title: Actuator
Inventor: EASTMAN JAMES M
IPC: F16H25/20
Filed: 1982-09-22
Granted: 1986-03-18
Abstract: ABSTRACT           In an actuator system (10) having an air motor (12) for supplying a ball-screw actuator (14) with rotary input.  The ball screw actuator (12) has a friction clutch mechanism (206) that limits the torque applied to the screw (176) when the ball nut (166) reaches first and second extreme positions.  Thus, the maximum output from the air motor (12) can be applied to ball screw actuator (14) without braking before the positions are reached.  A torsion bar and a cam 274 act to regulate the clutch (206) slipping torque to narrow limits, thereby easing strength requirements in the actuation mechanism (10).     Fig.  (2)
Patent CA-1158015-A (CA)
Inventor: CORRIGAN FRANCIS R
IPC: C09K3/14
Filed: 1982-11-12
Granted: 1983-12-06
Abstract: ABSTRACT OF THE DISCLOSURE         Cubic boron nitride has been made from powdered hexagonal boron nitride by a process which comprises vacuum firing of the HBN and conversion by high pressure-high temperature processing at 55-80 kilobars and 1600 C to the reconversion temperature.  This process may be carried out in a high pressure reaction cell having a special design which prevents the entrance of impurities into the sample.  This cell, comprises, for example, a carbon tube enclosing concentric titanium sleeve.  Within the cylinder defined by the tube and sleeve are: the HBN sample, carbon filler, shielding tantalum foil discs and carbon end plugs.  The vacuum firing is done at pressure of 10 5-10 10 mm Hg, 1400 - 1900°C, for 5 minutes - 4 hours, and is believed to form a thin, free-boron coating on the HDN particles.  The process works on both pyrolytic (turbostatic) and graphitic hexagonal boron nitride.  Grinding grits formed by milling cubic boron nitride chunks recovered from the high pressure-high temperature process have resulted in higher grinding ratios than commercially available CBN.
Patent CA-1203447-A (CA)
Inventor: KONISHI RYUSAKU
IPC: A61F13/02
Filed: 1982-12-09
Granted: 1986-04-22
Abstract: ABSTRACT OF THE DISCLOSURE        An adhesive bandage comprising a pad for absorbing a medicine which is separately stored from the pad by means of a medicine covering film interposed between the medicine and the adhesive tape or by means of a capsule enclosing the medicine in it until the bandage is applied to a local site of body such as wound, an adhesive tape carrying the pad thereon, a release sheet provided with a blister portion adapted to placing the medicine in it and attached to the adhesive tape in such a manner that the open side of the blister may face the adhesive tape.
Patent CA-1212247-A (CA)
Inventor: SMITH IAN K
IPC: F01K7/00
Filed: 1982-12-17
Granted: 1986-10-07
Abstract: ABSTRACT      METHOD AND APPARATUS FOR CONVERTING THERMAL                  ENERGY      A method of converting thermal energy into another energy form, comprising the steps of providing a liquid working fluid with said thermal energy, substantially adiabatically compressing the working fluid, substantially adiabatically expanding the hot compressed working fluid by flashing to yield said other energy form in an expansion machine capable of operating with jet working fluid and of progressively drying said fluid during expansion, and condensing the exhaust working fluid from ho expansion machine.      Apparatus for converting thermal energy Unto another energy form is also provided.
Patent CA-1180752-A (CA)
Inventor: UENO MITSUSHI
IPC: H01M8/02
Filed: 1982-12-24
Granted: 1985-01-08
Abstract: Abstract of the Disclosure A fuel cell stack has a plurality of stacked unit cells, each consisting of a pair of gas diffusion electrodes with a matrix containing an electrolyte solution interposed between them, with an interconnector having a fuel gas passage on one surface and an oxidizing gas agent passage on the other surface interposed between each pair of adjacent unit cells.  One out of every three to five interconnectors is a one-piece-molded product which has at least one cooling pipe embedded in it and which provides an excellent cooling effect.  The fuel cell stack stably provides a high output voltage over a long period of operation time.
Patent CA-1218987-A (CA)
Inventor: FUJIWARA TATSURO
IPC: C07H17/08
Filed: 1983-01-19
Granted: 1987-03-10
Abstract: ABSTRACT OF THE DISCLOSURE            The invention provides compounds of the formula   [1]     wherein R1 is lower alkyl, lower alkoxycarbonyl-lower alkyl, phenyl, phenyl substituted by one or more lower alkyl groups or a halogen atom, phenyl-lower alkyl optionally substituted in its side chain by a lower alkyl or lower alkoxycarbonyl, thienyl-methyl or thizolyl group, R2 is a hydrogen atom or a lower alkyl group, or    constitutes a 3- to 7-membered nitrogen atom containing heterocyclic ring in which R1 and R2 are connected, R3 is a hydrogen atom or a hydroxyl group, and X is an oxygen or sulfur atom; or a non-toxic salt thereof.          These compounds are antibiotics having stronger antibacterial activity than that of known clinically used macrolide antibiotics, and is effective against macrolide antibiotic-resistant bacterial strains.  The compounds are also useful as feed additives and growth stimulants.
Patent CA-1209695-A (CA)
Inventor: NAKANO KENJI
IPC: G11B27/024
Filed: 1983-01-21
Granted: 1986-08-12
Abstract: ABSTRACT OF THE DISCLOSURE           A magnetic recording and/or reproducing apparatus, in which the azimuth angles of recorded signals between adjacent tracks are made different with each other to omit a guard band and a rotary head assembly including at least a pair of magnetic transducing heads, each having the head width larger than the track width is provided, is disclosed.          In this case, when a re-recording is achieved for a part of a magnetic recording medium on which a signal is already recorded, an identification information is recorded on a predetermined track in connection with the first or last track for which the re-recording is achieved and a signal deterioration caused by track width fluctuation or variation is compensated for based upon the identification information.
Patent CA-1197351-A (CA)
Inventor: DECKER WILLIAM D
IPC: A61F13/30
Filed: 1983-02-04
Granted: 1985-12-03
Abstract: ABSTRACT OF THE DISCLOSURE    A tampon insertion device comprising an elongated tube of spirally wound laminated paper construction provided with a domed insertion end defined by a series of generally hemispherically cupped petals.  The petals are formed in a generally triangular configuration through the removal of tube material by appropriate punch and die apparatus.  The insertion end of the tube, preferably prior to the defining of the petals in the tube end, is provided with longitudinal scores oriented to locate a single score extending centrally along each of the formed petals.  Additionally, multiple circumferential scores are provided about the insertion end of the tube whereby each formed petal will incorporate multiple transversely extending scores.  In longitudinally and circumferentially scoring the insertion end, the tube, normally mounted on an inner stabilizing mandrel, is manipulated to introduce the insertion end through an annular die having inwardly directed circumferentially spaced scoring blades corresponding in number to the number of petals to be formed.      The mandrel mounted tube next positions the longitudinally scored insertion end adjacent the outer periphery of a roller die with multiple projecting scoring blades for effecting formation of the circumferential scores, either the mandrel supported tube or the roller die being driven with the other freely rotating therewith.  The petals are subsequently defined and, utilizing a hemispherically shaped concave female die, formed into the domed configuration.
Patent CA-1153051-A (CA)
Inventor: KERR GEORGE E
IPC: A62C35/02
Filed: 1983-02-04
Granted: 1983-08-30
Abstract: ABSTRACT A fire-fighting apparatus comprising a cabinet having a door afford-ing access to a water hose, operating valve and fire extinguisher.  The cabinet is divided into three compartments, the first containing a fire hose, the second a valve assembly connected to the fire hose, and the third a chemical extinguisher.  A cover plate is hingedly mounted to overlie the valve assembly, and more particularly the operating handle.  The cover plate is spring urged to uncover the handle; however, it is engaged by the fire hose when in its compartment to hold the cover plate in overlying relation to the handle.  Thus, unless the fire hose is withdrawn from its compartment, the cover plate over-lies the handle and serves as a safeguard against operation of the handle while the fire hose is still in the compartment.  An electrical switch is activated upon operation of the handle.  The switch may be connected to any suitable alarm device which is activated when the water valve is turned "on".
Patent CA-1213109-A (CA)
Title: Manufacture of a material which has abrasive  properties
Inventor: ROGUT SAMUEL
IPC: B24D11/00
Filed: 1983-02-18
Granted: 1986-10-28
Abstract: MANUFACTURE OF A MATERIAL WHICH HAS ABRASIVE PROPERTIES            ABSTRACT           A method of producing a cleaning cloth having abrasive properties is disclosed.  The method comprises passing a composite material consisting of a needle bonded fabric, a woven or knitted fabric and a layer of foamed synthetic plastics material past a heat source which is preferably a gas flame. The gas flame is directed at the stitches of the exposed face of the needle bonded fabric and the layer of knitted or woven fabric is sandwiched between the needle bonded fabric and the layer of foamed material.          The stitches of the fabric form hard, abrasive nodules the arrangement of which varies with the stitch pattern.
Patent CA-1236949-A (CA)
Inventor: POSPICH GUNTHER
IPC: C08F218/00
Filed: 1983-03-30
Granted: 1988-05-17
Abstract: Abstract of the disclosure:     A resin-like product having a degree of hydrolysis of 50 to 70 mole per cent is obtained by selective alco-holysis of a vinyl ester copolymer, if desired in the form of a mixture with a vinyl ester homopolyrmer.  The starting material employed is preferably a vinyl acetate/crotonic acid copolymer.  The resin is suitable for use as a hot-melt adhesive which forms coherent films capable of being activated by water or water vapor.
Patent CA-1197794-A (CA)
Inventor: STENSSON BO G
IPC: F16D55/224
Filed: 1983-03-31
Granted: 1985-12-10
Abstract: ABSTRACT (to be published together with Fig. 1) A rail vehicle disc brake caliper has a base frame (1) with a pivotally attached brake lever (3). Brake pads are provided on these parts in the vicinity of a disc to be braked. A brake cylinder (16) for acting on the brake lever is attached to the base frame.     In order to obtain a space saving, simple and sturdy design with a required internal leverage and with a slack adjusting function a slack adjuster (15) of the rotary, lever type is arranged with its rotary part on a shaft (14) pivotally arranged in the base frame and its free arm connected to the piston rod (16?) of the brake cylinder (16). This shaft is provided with a cam (17), preferably connected to the brake lever (3) by means of connecting links (18).
Patent CA-1193789-A (CA)
Inventor: RASSHOFER WERNER
IPC: C08K5/053
Filed: 1983-05-17
Granted: 1985-09-17
Abstract: ABSTRACT OF THE DISCLOSURE       A single-phase, storage-stable, emulsifier-free polyol mixture comprising 100 parts of a relatively high molecular weight polyoxyalkylene polyol of OH number from 20 to 120, which has at least 5% and less than 80%, by weight, of terminal oxyethylene blocks; from 1 to 100 parts of a low molecular weight diol mixture which is a reaction product of ethylene glycol, butane diol-1,4, or a mixture of ethylene glycol and butane diol-1,4, with from 0.05 to 0.50 mols of alkyl oxiranes; from 0.1 to 5 parts of solubilizing additives comprising one or more salts, the cations of which are from Groups I, II and III of the Periodic Table, ammonium  or mono- to tetra-alkyl ammonium ions, and the anions of which are produced by removing at least one proton from an acid having a  Ks value of at least 10-7; and, optionally, other compounds having isocyanate-reactive hydrogen atoms and other auxiliaries and additives for polyure-thane production.  Also polyurethanes produced using these polyol mixtures.
Patent CA-1200421-A (CA)
Inventor: SWILDENS JOHAN B
IPC: A23J1/12
Filed: 1983-06-14
Granted: 1986-02-11
Abstract: WHEAT PRODUCT AND PROCESS     ABSTRACT OF THE INVENTION           The present invention describes a method of producing wheat protein product which is lower in cost than presently available gluten products.