baber/WOPTO huggingface dataset:
Patent CA-1323478-C (CA)
Inventor: LEFKOWITZ LEONARD R
IPC: D04H3/12
Filed: 1992-03-03
Granted: 1993-10-26
Abstract: ABSTRACT       In the production of a nonwoven fabric, for example for use as or in a papermakers fabric, an array of sheath core yarns of which the core has a higher melting point than the sheath, is fed in spaced parallel disposition to peripheral grooves of a pinned roller arranged in nip forming relation-ship with a press roll.  The material of the sheath is melted as the yarns move into and through the roller nip and excess melted sheath material is forced into lateral grooves in the roller to form structural members between adjacent yarns.
Patent CA-1337142-C (CA)
Inventor: TURNER HOWARD WILLIAM
IPC: C08F10/00
Filed: 1994-08-12
Granted: 1995-09-26
Abstract: A catalyst is prepared by (a) combining, in a suitable solvent or diluent, at least one first component consisting of a bis(cyclopentadienyl) derivative of a Group IV-B metal containing at least one substituent capable of reacting with a second component, which second component comprises a cation which will irreversibly react with at least one substituent in said first component and a non-coordinating anion which is a single coordination complex comprising a plurality of radicals covalently coordinated to and shielding a central formally charge-bearing metal or metalloid atom which anion is bulky and stable to any reaction involving the cation of the second component but sufficiently labile to permit displacement by an olefin, diolefin, and/or acetylenically unsaturated monomer, and (b) maintaining the contacting in step (a) for a sufficient period of time to permit the cation of said second component to react with said substituent contained in said first component, thereby forming an active catalyst either as a direct product or as a decomposition product thereof.  Many of the catalysts thus formed are stable and isolable and may be recovered and stored.  The catalysts may be preformed and then used to polymerize olefins, diolefins and/or acetylenically unsaturated compounds either alone or in combination with each other or with other monomers or the catalysts may be formed in situ during polymerization by adding the separate components to the polymerization reaction.  The catalyst will be formed when the two compo-nents are combined in a suitable solvent or diluent at a temperature within the range from about -100°C to about 300°C.  The catalysts thus prepared afford better control of polymer molecular weight and are not subject to equilibrium reversal. The catalysts thus produced are also less pyrophoric than the more conventional Ziegler-Natta olefin polymerization catalysts.  Certain of the catalysts also yield homopolymers of .alpha.-olefins having relatively high molecular weights.   Certain of these catalysts also yield copolymers containing significantly more comonomer, many of which copolymers will be elastomeric.
Patent CA-1340054-C (CA)
Inventor: BREAULT JOHN P
IPC: B65D35/40
Filed: 1995-09-26
Granted: 1998-09-22
Abstract: Modular apparatus for dispensing precise quantities of a fluid product including a dispensing unit and an actuator unit. A housing of the dispensing unit defines a reservoir which contains the product under pressure. Within the housing is a ball-type valve mechanism. A deformable diaphragm isolates the reservoir from the mechanism which actuates the valve to prevent undesirable entry of the product.  The diaphragm may be of a number of shapes, depending upon the length of the stroke desired for the ball mechanism. The dispensing unit is readily removable from the actuator unit and can be readily replaced with another dispensing unit. Different nozzle sizes can also be accommodated.  The extent of the valve opening is adjustable in discrete increments.
Patent DK-166068-C (DK)
Inventor: EIRICH WILLI
IPC: B28C5/32
Filed: 1984-02-27
Granted: 1993-07-19
Abstract: PCT No. PCT/DE84/00085 Sec. 371 Date Sep. 19, 1984 Sec. 102(e) Date Sep. 19, 1984 PCT Filed Apr. 9, 1984 PCT Pub. No. WO84/04055 PCT Pub. Date Oct. 25, 1984.Described is an apparatus for treating materials which are capable of flow, comprising a container (1) which rotates about is central axis (5) which is inclined with respect to the vertical, with a wall and/or bottom scraper plate (2) which is arranged substantially stationarily with respect to the cylindrical inside wall of the container (1), a discharge opening (3) disposed in the bottom of the container (1) and a rotating tool (6) which engages into the material. To reduce the amount of power consumed, while giving good treatment effects, and to enhance the output of the machine, with respect to the available volume in the machine, it is proposed according to the invention, that the container (1) is driven at a sub-critical speed of rotation, the rotating tool (6) is arranged exclusively at the downstream side of the apex, that the space on the upstream side is free of fittings therein and that the scraper plate (2) is disposed in the vicinity of the apex of the container (1).
Patent DK-158455-C (DK)
Inventor: LEONARD JACKSON DAY
IPC: C07C27/02
Filed: 1979-06-01
Granted: 1990-10-08
Abstract: The invention provides a process for the preparation of formic acid by hydrolyzing methyl formate with water at high temperature and pressure in the presence of a formic acid catalyst. Methanol is also formed. The reesterification of the reaction products to methyl formate (a reaction favored by high temperatures) is minimized by flashing the reaction product at relatively low pressure and temperature and thereafter distilling the residual liquid. Thus procedure separates the methyl alcohol from the formic acid with a minimum contact time and at a low temperature which does not favor the reesterification reaction. High purity formic acid may be obtained by subjecting the bottom from the vacuum distillation of further distillation. 
<??>In a preferred embodiment of the invention, prior to the main hydrolysis, the methyl formate is partially hydrolyzed to form the small amount of formic acid needed to accelerate the main hydrolysis step. Accordingly, the necessary formic acid catalyst is formed in situ, thus eliminating the need to add formic acid or to recycle product formic acid.
Patent DK-164172-C (DK)
Inventor: NAUMANN KLAUS
IPC: A01N53/00
Filed: 1986-06-24
Granted: 1992-10-12
Abstract: Pesticidal compositions useful in protecting plants and also in the hygiene field are disclosed. The new tetramethylcyclopropanecarboxylates have the formula   <IMAGE> where R represents mercapto, methylthio, alkylsulphenyl or alkylsulphonyl.
Patent DK-159306-C (DK)
Inventor: BUSHELL MICHAEL JOHN
IPC: C07C21/00
Filed: 1984-10-18
Granted: 1991-02-25
Abstract: Cyclopropane carboxylates of formula (I) are new. In (I) W= halogen; X=H, CN or -C=CH; Y=H, 1-4C alkyl, 1-4C alkoxy, 1-4C alkylthio, 1-4C alkylsulphonyl, trifluoromethyl, 3,4-methylene dioxy, Cl, F or Br; n=1 or 2; Z=H, Cl or F.
Patent DK-157733-C (DK)
Inventor: CHRISTENSEN FINN NORRING
IPC: A61K51/00
Filed: 1983-12-22
Granted: 1990-07-16
Abstract: Enterally administrable diagnostic compositions for investigating alimentary functions comprise mul ple units of a size of at the most 5 mm, preferably between 0.5 and 1.3 mm, in particular between 0.7 and 1.0 mm, each uni- comprising a tracer-binding agent such as an ion exchange -ssin to which a radioactive tracer substance with a half-life of at the most 5 days, in particular <sup>99m</sup>Tc, <sup>113</sup>In, <sup>111</sup>In and <sup>129</sup>Cs, is associated, the tracer-binding agent being formulated with pharmaceutically acceptable excipients, in particular granulating excipients in such a way that the exposure of the gastrointestinal mucosa to the tracer-binding agent is reduced and that the units do not disintegrate during the passage through the gastrointestinal tract. Preferred units comprise cross-sectionally substantially homogeneous mutti-component cores in which the tracer-binding agent is granulated with one or more excipients and which are optionally coated.Preferred units comprise cross-sectionally substantially homogeneous multi-component cores made by granulating the tracer-binding agent with granulating excipients, the cores being coated with a diffusion coating. The labelling of the composition is performed at the site of use by immersing the units containing the tracer-binding agent in a solution of the tracer substance. The formulation of the tracer-binding agent with the excipients and the coating reduces leaching and permits easy variation of parameters important to the behaviour of the units in the gastrointestinal system such as size, density and surface properties. Tracer substances are normally present in an amount from about 2 to about 20% by weight, preferably from about 5 to about 10% by weight, calculated on the units. Due to low leaching and the non-disintegrating properties, the composition can be used to investiate gastric emptying also of the last 20% of a food bolus.
Patent FI-60430-C (FI)
Inventor: JOUTSJOKI JUKKA
IPC: F16C13/00
Filed: 1980-04-24
Granted: 1982-01-11
Abstract: A roll comprises a supporting, non-rotating shaft (1) and a rotatable mantle portion (2) supported thereon by means of a plurality of bearing units (3a,3b). The bearing units (3a) at the end portions of the shaft (1) are provided with a flexible mounting (6,8,9) with respect to the shaft (1) and/or the mantle portion (2). The flexible mounting (6,8,9) is connected to flexible elements (4) influencing the support of the mantle portion (2). The spring modulus of the flexible elements (4) is adapted to the stiffness of the shaft (1), so that, under external loading of the roll, the flexible elements (4) allow the ends of said shaft (1) to move radially relative to said mantle portion (2), but resist this movement with an elastic force being dependent on the angle of deflection of said shaft (1), thereby keeping the deflection of said mantle portion (2) within predetermined limits.
Patent FI-72332-C (FI)
Inventor: ALDRICH PAUL HARWOOD
IPC: C08L93/04
Filed: 1981-11-02
Granted: 1987-05-11
Abstract: Disclosed are novel aqueous dispersions which consist essentially of finely-divided fortified rosin particles; a water-soluble or water-dispersible cationic starch dispersing agent for the finely-divided fortified rosin particles; an anionic surface-active agent; and water. The novel aqueous dispersions are used to size paper.
Patent NO-142830-C (NO)
Inventor: SIDERY DAVID
IPC: B01F25/64
Filed: 1978-02-28
Abstract: A rotor for the distribution of air in the form of finely divided bubbles in the slurry in a flotation tank comprises a boss with an inner hollow air passageway, spaced-apart wings extending radially outwardly from the outer surface of the boss, and multiple air conduits communicating between the inner hollow air passageway and the surface of the boss between each adjacent pair of wings. The air conduits have outer mouths located immediately behind a wing (behind in the sense of rotational direction of the rotor) and linearly extend to the inner hollow air passageway such that lines through their central axes will intercept with imaginary radial lines passing through the centers of the wings behind which the outer mouths of the respective air conduits are located.
Patent NO-153138-C (NO)
Inventor: FRYER RODNEY IAN
IPC: C07C309/66
Filed: 1980-02-06
Abstract: Pyrimido-2-benzazepines of the formula   <IMAGE>  wherein A is one of the groups   <IMAGE> R<1> is hydrogen, chlorine, bromine, lower alkyl, the group NR<4>R<5>, the group -CH2-CO-R<7>, the group -NH(CH2)mNR<8>R<9>, hydroxy, lower alkoxy, mercapto or lower alkyl mercapto,  R<2> is hydrogen, amino or di-lower alkyl amino,  R<3> is hydrogen, lower acyloxy or hydroxy, X is hydrogen, halogen, trifluoromethyl, ethyl  alpha -hydroxy ethyl or acetyl,  Y is hydrogen or halogen, R<4> and R<5> each are hydrogen or lower alkyl or, together complete a five to seven membered heterocyclic ring,  R<7> is hydroxy, lower alkoxy or NR<8>R<9>,  R<8> and R<9> each are hydrogen or lower alkyl,  n is 0 or 1 and m is 1 to 7, with certain provisos, and pharmaceutically acceptable acid addition salts thereof, exhibit pharmacological utility as anxiolytics and sedatives.
Patent NO-173766-C (NO)
Inventor: CULLER SCOTT RICHARD
IPC: A61K6/76
Filed: 1986-09-05
Abstract: Dental articles are primed with a liquid layer of acidic, non-hazy silanol priming solution containing substantially fully hydrolyzed organofunctional silanol, water, and volatile alcohol or ketone solvent. The primer contains a sufficiently low amount of silanol and sufficiently high amounts of solvent and acid to have a priming strength in excess of the cohesive strength of dental porcelain after storage of the primer at room temperature for at least 45 days.
Patent NO-167073-C (NO)
Inventor: HAYMAN NIGEL WARD
IPC: A61F2/06
Filed: 1987-12-16
Abstract: 1. A melt spun hollow, tubular, substantially cylindrical synthetic vascular prosthesis, the wall of which has an interior structure comprising spaced fibrils of a synthetic polymeric material which are substantially aligned to the axis of the tube such aligned spaced fibrils being interconnected to each other in a random manner. n
Patent NO-173407-C (NO)
Inventor: PLETTENBERG KLAUS
IPC: F16K41/02
Filed: 1990-08-06
Abstract: Sealing system with modified stuffing box for control or shut-off fittings, comprising inter alia a fixed part of a housing (3) with a stuffing box space for sealing the axially or alternatively rotatingly movable spindle (1) in the form of a split packing (8, 11), a gland (2) screwed to the housing (3), and a lubricating box (13) which, in the case of a packing split at some point along its length, is arranged in the stuffing box space. To improve the sealing of the spindle and, in particular, to achieve a higher standard of long term tightness, the following further features are implemented:   a) the split packing in each case consists of individual packing rings composed of a basic seal material and in each case a lower and upper compartmentalisation ring for each of the two parts of the packing   b) a pasty lubricant is incorporated into the packing, c) a continuous supply of lubricant is provided in the space between the two parts of the packing via the lubricating box, d) the packing is compressed and readjusted by means of spring force   n
Patent CA-2004207-C (CA)
Title: Process and device for the production of plastics from at least two free-flowing reactants
Inventor: SULZBACH HANS-MICHAEL
IPC: B29B7/76
Filed: 1989-11-29
Granted: 2001-05-15
Abstract: The maintenance of the exact metering ratio during the production of plastics, particularly foams, from free-flowing reactants loaded with pulverulent to fine-grained or fibrous additives can be improved by mixing the additive in compacted form in a preliminary mixer with at least one of the reactants.   The pressure in the preliminary mixer is kept constant.
Patent CA-2010840-C (CA)
Title: Process for extracting metal residue from poly(ether ketone ketones)
Inventor: BRUGEL EDWARD G
IPC: C08G8/02
Filed: 1990-02-23
Granted: 2000-05-16
Abstract: Metal residues are extracted from poly(ether ketone ketones) with aliphatic alpha-hydroxycarboxylic acids or aromatic ortho-hydroxycaxboxylic acids in a liquid phase, either neat or in an aqueous or a nonaqueous solution. Extraction of metal residues, which usually derive from the catalysts used in the preparation of poly(ether ketone ketones), improves both the color and the thermal stability of these polymers.
Patent CA-2011860-C (CA)
Title: Process for the production of aluminium hydroxide from bauxite
Inventor: DEN HOND ROELOF
IPC: C01F7/062
Filed: 1990-03-09
Granted: 2000-02-22
Abstract: Process for the production of aluminium hydroxide by digesting bauxite with alkali solution and precipitating aluminium hydroxide from the digestion solution, comprising: a combining bauxite and alkali solution having a caustic concentration of at least 180 grams per litre expressed as sodium carbonate and digesting partly the bauxite in the combined product in a first digestion step at relatively low temperature, b separating reaction product obtained in step a into a liquid phase and a solids/liquid slurry, c combining liquid phase and solids/liquid slurry obtained in step b and digesting the combined product in a second digestion step at relatively high temperature, d releasing heat from the reaction product obtained in step c to preheat liquid phase obtained in step b, a separating the reaction product obtained in step d into a supersaturated sodium aluminate solution and undissolved material, f precipitating aluminium hydroxide from the supersaturated sodium aluminate solution obtained in step a and separating aluminium hydroxide from the spent liquor, and g recycling spent liquor obtained in step f to step a for use as alkali solution.
Patent CA-2012373-C (CA)
Title: Spread
Inventor: LIVINGSTON ROBERT MIDDLETON
IPC: A23D7/00
Filed: 1990-03-16
Granted: 1996-05-14
Abstract: The present invention is concerned with a spread comprising from 23 to 29 wt.% of a continuous fat phase and 77 to 71 wt.% of an aqueous phase and further containing 1.2 to 5.0 wt.% gelatin and 3.0 to 14.0 wt.% hydrolized starch.      The spread of very low fat content according the present invention offers the advantage that it is of an exceptional good quality as regards oral response, spreadability and stability. Furthermore the formulation of the present spread offers the advantage that it can easily be manufactured as it does not require special equipment and moreover since the product quality is not easily affected by fluctuations in processing conditions.      Another aspect of the present invention is a process for the preparation of a spread containing less than 29 wt.% of a continuous fat phase and at least 71 wt.% of an aqueous phase, wherein a water-continuous emulsion containing 1.2 to 5.0 wt.% gelatin, 3.0 to 14.0 wt.% hydrolized starch and from 15 to 29 wt.% fat is cooled from above 40°C to below 20°C and subjected to sufficient shear to effect phase-inversion into a fat-continuous emulsion.
Patent CA-2014286-C (CA)
Title: Method and apparatus for restricting credit card communication calls
Inventor: FRANCO VICTOR A
IPC: H04Q3/00
Filed: 1990-04-10
Granted: 1994-05-03
Abstract: METHOD AND APPARATUS FOR RESTRICTING   CREDIT CARD COMMUNICATION CALLS Abstract A method and an apparatus are disclosed to enable a public switching network to limit the geographical calling area of calls charged to a credit card. When a credit card call is originated, the called party number is included as part of the credit card validation request. The called party number is compared against numbers stored in a call restriction table 320 previously entered by the owner of the credit card. The network accepts or denies credit card calls as a result of this comparison. (FIG. 2)
Patent CA-2021816-C (CA)
Title: Loudspeaker system
Inventor: KAGEYAMA SATOSHI
IPC: H04S3/02
Filed: 1990-07-24
Granted: 1993-11-30
Abstract: ABSTRACT   An improved dipole type loudspeaker system has a pair of loudspeakers which are mounted on the front baffle board and the back baffle board of a console and are connected to a signal source so as to be driven in mutually opposite phase relationship.  The speakers have substantially the same acoustic characteristics in the medium and high frequency ranges but different acoustic characteristics in the low frequency range.  The loudspeaker system produces good surround-sound effect when only a small number are used as rear loudspeakers in, for example, a domestic AV system.
Patent CA-2023185-C (CA)
Title: Combined defibrillator-pacer system utilizing pacer tip lead switch
Inventor: BOCCHI DAVID E
IPC: A61N1/39
Filed: 1990-08-13
Granted: 1995-10-24
Abstract: A  switch  for  placement  in  the  lead  line connecting a pacing pulse generator to an implanted pacing tip electrode in a combined implantable pacing-defibrillation system.  The switch is triggered by switch control circuitry to open during defibrillation and to close during pacing.   When the switch is open,  the implantable unit is electrically isolated from the high voltage defibrillation pulse delivered to the heart. When the switch is closed, a low resistance conduction path is provided in the pacing lead to the pacing tip electrode.
Patent CA-2024892-C (CA)
Inventor: COLUMBUS RICHARD L
IPC: B04B11/00
Filed: 1990-09-07
Granted: 1995-05-16
Abstract: A method of use is disclosed of a device that causes phase separation of whole blood, using much lower centrifugal forces.  As a result, leukocytes are separated from blood cells having specific gravities of 1.09 g/ml or higher.  The method preferably uses a separation chamber arranged so that its long dimension or axis is parallel, not perpendicular, to the spin axis, and a valve that allows automatic removal of the lighter phase(s).          In one respect, the method separates a lighter phase from a heavier phase, for example, lymphocytes from whole blood, using a centrifugal force of reduced amount.  In another aspect, DNA is extracted readily from the separated lighter phase since it is less likely that the lighter phase will be contaminated by erthrocytes as occurs in conventional separation techniques.
Patent CA-2030405-C (CA)
Inventor: KAWAKAMI KENJI
IPC: D01F6/70
Filed: 1990-11-21
Granted: 1996-04-02
Abstract: An elastic synthetic polymer filament having a multi-lobated cross-sectional profile is composed of (A) a filamentary axial constituent extending along the longitudinal axis of the filament, and (B) 3 to 8 filamentary lobe constituents radically protruding from and extending along the filamentary axial constituent each having a constricted portion thereof through which each filamentary lobe constituent is connected to the filamentary axial constituent, the cross-section of the filament satisfying the relationship (I):           1.3 ?  d1/w ? 10                    (I) wherein d1 is a largest cross-sectional width of each filamentary lobe constituent (C).
Patent CA-2037277-C (CA)
Title: Method and apparatus for processing echo sounding data collected from boreholes in the earth
Inventor: MCCOY JAMES N
IPC: E21B47/04
Filed: 1991-02-28
Granted: 1995-05-16
Abstract: An echo sounding system includes an acoustic gun which is mounted to the wellhead of a borehole.  The acoustic gun produces an acoustic pulse which is transmitted down the borehole.  A tubing string is installed in the borehole and it has substantially evenly spaced collars.  Fluid is pumped from the borehole, or well, by use of a reciprocating pump driven by a pump rod extending to the surface.  The acoustic pulse produces reflections when it strikes the tubing collars and the surface of the fluid.  A microphone detects the reflections to produce a return signal. This signal is digitized and stored.  The digitized signal is processed to detect the rate of the collar reflections and the stored signal is narrowband filtered with a passband filter centered at the rate of receipt of the collars.  Each cycle of the narrowband filtered signal corresponds to one collar reflection.  In this signal, each cycle is counted, and extrapolation used when necessary to produce a collar count extending from the surface to the liquid surface.  This is multiplied by the average joint length to produce the depth to the liquid surface.  The system further detects the liquid level and displays it as a marker on the data signal. An operator can use the automatically determined marker or move it to another position.  Finally, the operator is provided with optimum operating parameters for achieving maximum production from the well.