Abstract: An intravascular catheter or cannula assembly including a catheter device having a catheter tube and a catheter hub, and a cannula device having a cannula and a cannula hub. A cannula positioning rod is securely mounted on the cannula hub through a fixing member. A stopper is securely mounted on the catheter hub to abut against the distal end of the rod, thereby regulating the projecting length of the cannula from the distal end of the catheter tube when the cannula is inserted into the catheter tube. A member having a groove is provided to prevent an axial movement of the cannula. The groove tightly and detachably receives the fixing member and the stopper thereby integrally holding the catheter device and the cannula device when they are assembled.

Abstract: A metering device is disclosed which includes a metering chamber (14) divided into two compartments (22, 24) by a pressure transmitting member in the form of a flexible diaphragm (20). Fluid flow is alternately allowed into each of the two compartments (22, 24) with each compartment filling to the volume of the metering chamber (14) when full so that periodic pulses of intravenous fluid of that precise volume are sent to the patient. The volume of the metering chamber (14) is selected to match a standard intravenous set drop size, for example one-tenth, one-fifteenth, one-twentieth, or one-sixtieth milliliter.

Abstract: An intravenous drip rate control device includes a control valve having horizontally oriented valve members each provided with valve elements arranged in interdigitating relation with respect to each other. A drip rate sensor senses each intravenous drip and produces an electrical signal in response to each drip. A microprocessor unit compares the sensed drip rate to a preset drip rate and controls operation of an actuating unit which causes one of the valve members to shift toward and away from the other valve member. When one of the valve members is shifted toward the other valve member, a horizontal portion of the drip tube is progressively stretched to narrow the opening through the stretched portion of the tube and thereby reduce the drip rate. When the valve member is shifted away from the other valve member, the tension on the stretched portion of the tube will be progressively released, thereby increasing the opening in the tube and increasing the drip rate.

Abstract: A catheter of the evagination type is provided with an inverted-evertable non-elastic tube having a diameter throughout equal to or greater than the catheter body, an axially aligned end opening at the distal end, and a multifold configuration of the distal end to maintain end-sealing during inversion and eversion.

Abstract: A device particularly useful for persons having circulatory problems such as diabetics comprising a liquid confining section in which a person's foot can be soaked and a leg and foot supporting section which comfortably supports the leg and foot and maintains said foot in a generally upright position.

Abstract: A disposable diaper containing an integral removable bag that provides sanitary storage conditions for the absorbent layer prior to the diaper's use and provides refuge for the soiled diaper by use of a foldover flap that is sealed with a fastening strip.

Abstract: An ultrathin film composed substantially of silicon-containing polyurea comprising polyaddition bonded units derived from(A) at least one polyamine selected from the group consisting of silicon-containing polyamines and hydrocarbon-type polyamines, each of said polyamines containing at least two primary or secondary amino groups in the molecule, and(B) at least one polyisocyanate compound selected from the group consisting of silicon-containing polyisocyanates and hydrocarbon-type polyisocyanates, each of said polyisocyanates having at least two isocyanate groups in the molecular chains;provided that when the polyisocyanate compound is the hydrocarbon-type polyisocyanate alone, at least one of the selected polyamines is a silicon-containing polyamine containing at least one terminal amino group in the molecule.

Abstract: A process for the removal of CO.sub.2 from a gaseous stream containing at least one C.sub.2 to C.sub.4 olefin is provided comprising contacting said stream with a regenerable calcined alkali metal compound-treated alumina.

Abstract: A flexible layered membrane comprising a chemically inert microporous support layer coated on one surface with a thin continuous selective permeability pellicle of cured polysulfide polymer having a separation factor favoring hydrogen sulfide. The resulting article is suitable for removing hydrogen sulfide from a mixture of gases.

Abstract: The specification discloses an improved in-line disposable filter for sub-micron filtration having a two-piece filter housing permanently and sealingly joined together, and having an inlet and an outlet for media to pass therethrough, said filter housing containing on the interior a resin bonded glass fiber filter tube fitted over a support core which is located in place by one end of the filter housing and, when assembled, compresses the resin bonded glass fiber filter tube between serrations on the support core and the end wall of one of the pieces of the filter housing.

Abstract: A paint spray filter for use in a paint spray booth. The filter comprises a grid having a plurality of vertical and horizontal members, attachment means secured to the grid extending upwardly and outwardly therefrom, and a sheet of fiberglass filter material. The fiberglass filter material has a first face substantially covering the grid and being secured thereto by the attachment means, and a fully exposed second face. Support means extending from the edges of the grid are adapted to cooperate with the frame members of the paint spray booth for maintaining the paint spray filter in the booth.

Abstract: A method of separation by fractional crystallization from a liquid mixture in which the liquid mixture is repeatedly passed in turbulent flow through an indirectly cooled crystallization zone, which must be kept full. The liquid remaining after deposition of a layer of crystals on the wall of the crystallization zone is removed, whereupon the surface of the layer of crystals is washed and the crystals are melted by passing a melt of similar compositions to that of the layer of crystals through the crystallization zone. During crystallization the melt is maintained at the temperature of crystallization and crystallization is stopped when the frozen fraction is from 70 to 98%.

Abstract: The invention relates to a process for producing ultrapure doped vitreous silica for producing a preform for optical fibres. According to the invention, an ultrapure porous glass, glass obtained after its shaping, is used as the crude starting material in a deposition process of the plasma torch, grain by grain Verneuil type, for example, in order to complete a preform obtained by said process for the separation of phases and acid washing or etching of the glasses.

Abstract: Optical fibres are manufactured by etching the inner wall of a tube. The tube wall is etched by passing a hydrogen-free fluorine compound through the tube while reciprocating a nonisothermal plasma through the tube. After etching, core glass is chemically deposited on the etched surface. The core glass is deposited from the gaseous phase while using a nonisothermal plasma for initiating the reaction. The inner-coated tube is then collapsed and drawn to form an optical fiber.

Abstract: A method and apparatus for producing glass bottles, is characterized by the forming of an air curtain to cover a plunger of the apparatus so as to prevent foreign matter from adhering to the plunger, a phenomenon which is the cause of decreasing the impact strength of glass bottles and which, therefore, makes it difficult to produce thin-walled glass bottles.

Abstract: A method and apparatus for thermally toughening glass in which a hot glass article is quenched in a gas-fluidized bed of particulate material. A plurality of streams of particles are generated and are projected into the fluidized bed towards the glass immersed in the bed in order to enhance the heat transfer away from the surfaces of the article in the toughening process.

Abstract: A roller construction is described for use in glass bending apparatus employing an array of curved rods. A tubular sheath is rotatably mounted on a curved rod. The sheath comprises a tubular metal winding that is coaxial with the rod and a coaxial metal meshing adjacent either the inner or outer surface of the winding. Such a sheath provides both good torsional resistance and flexibility in the axial direction. When an array of such curved rods is used to define a cylindrical surface in glass bending apparatus, heated glass sheets may be bent on such array to conform their curvature to the surface defined by the rods.

Abstract: A fertilizer product in granular form with sustained action is provided by spraying a silicate-based solution on the surface of the fertilizer granules in a conventional coating machine which is maintained at temperatures ranging from 20.degree. to 100.degree. C. The coating solution comprises 1 to 50% by weight of a silicate and/or silicic acid ester based on the weight of the fertilizer material to be treated, 0.001 to 1.0 part by weight of a metal and/or non-aqueous metallic compound (first additives), 0.001 to 1.0 part by weight of an aqueous metallic compound (second additives), 0.001 to 1.0 part by weight of an inorganic mineral (third additives), and optionally high molecular weight organic compound, wherein all parts described above are based on the weight of the silicate and/or silicic acid ester used. The coated fertilizer granules are subject to heat-treatment for 10 seconds to 10 days under conditions that the relative humidity and the temperature be maintained at 5 to 95% and 10.degree. to 250.

Abstract: Phenylpyrimidines of the formula I as defined below are suitable as antidotes for protecting cultivated plants from phytotoxic effects caused by herbicides. These antidotes, either together with the herbicides or also by themselves, are applied to the plants or incorporated in the soil in which the plants grow, or they are used to treat the seeds of the plants. Suitable herbicides are those belonging to the class of the haloacetanilides, haloacetamides, thiocarbamates, carbamates, nitroanilides, triazines, phenylureas, haloacetic acids, phenoxy- and pyridyloxyphenoxyalkanecarboxylic acid derivatives, benzoic acid derivatives etc. The phenylpyrimidines have the formula I ##STR1## wherein n is an integer from 1 to 5,R is hydrogen, halogen, cyano, nitro or hydroxyl, a C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 alkoxy or C.sub.1 -C.sub.6 alkylthio group, which is unsubstituted or mono- or polysubstituted by halogen, C.sub.1 -C.sub.6 alkoxy, C.sub.2 -C.sub.12 alkoxyalkyl, C.sub.1 -C.sub.6 alkylcarbonyl, C.sub.1 -C.

Abstract: The invention relates to a plant growth regulating composition which contains as active agent a compound of general formula (I) ##STR1## wherein R.sub.1 and R.sub.2 can be identical or different and can stand for hydrogen, a C.sub.1-4 straight or branched alkyl group, cyclohexyl, phenyl, chlorophenyl, alkylphenyl, benzyl or alkylbenzyl group, or R.sub.1 and R.sub.2 can together with the N atoms form a heterocyclic ring.The growing of plants can be stimulated and the green weight can be increased to a significant degree by the treatment carried out with the composition of the invention.

Abstract: Hexahydrotriazinones substituted by a 5-substituted-1,2-oxazol-3-yl moiety, useful for controlling the growth of unwanted plants.

Abstract: Aniline derivatives of the general formula: ##STR1## wherein X represents a halogen atom or a lower alkyl, lower alkoxy, lower alkenyl, lower alkenyloxy, lower alkyl substituted by one or more halogen atoms, nitro or cyano group or an amino group unsubstituted or substituted by one or two lower alkyl groups, which may be the same or different, or by a group --CO--R.sup.1 (wherein R.sup.1 represents a lower alkyl, lower alkoxy, mono (lower) alkylamino group or di (lower) alkylamino group wherein the lower alkyl groups may be the same or different), n represents 0 or an integer from 1 to 5 inclusive, it being understood that when n represents an integer from 2 to 5 inclusive, atoms or groups represented by X may be the same or different, and Q represents a group of the general formula: ##STR2## wherein R.sup.2 and R.sup.3 may be the same or different and each represents a hydrogen atom or a lower alkyl group, and R.sup.4 represents a cyano group or a group --COR.sup.5, wherein R.sup.

Abstract: A phenoxypyridine compound represented by the formula: ##STR1## wherein X represents a hydrogen atom, an alkyl group, an alkoxy group, an amino group, a cyano group, a hydroxy group, a halogen atom, or a 2-chloro-4-trifluoromethylphenoxy group, which compound is useful as a herbicide or an intermediate for agricultural chemicals, is disclosed.

Abstract: Compounds of the formula ##STR1## exhibit, in the pre-emergence process and in the post-emergence process, a good herbicidal action against a number of dicotyledonous weeds, they are well tolerated in monocotyledonous crops, such as wheat, barley, rice, sorghum and maize, and are also selectively active in some dicotyledonous crops such as soy beans, groundnuts and the like.

Abstract: A method and apparatus for implementing pyro-metallurgical processes, such as those involved in the reaction melting of fine grained solids or for the after-treatment of melts wherein an exothermically reacting solids/gas mixture is conducted through an acceleration jet as a heterogenous stream and is blown onto a melt contained in the furnace. The jet stream is ignited immediately upon discharge from the jet and a sharply focused or highly concentrated particle stream having a high surface power density (high mass flow velocity) and a high temperature is impacted against the melt. This results in the melt being subjected to localized intensive movement and is simultaneously heated. The method is suitable for the reaction melting of sulfidic or oxidic non-ferrous metal concentrates as well as for the reduction and/or depletion of non-ferrous metal containing slags, and for the reduction of metal melts.

Abstract: Disclosed is a corrosion-resistant non-magnetic steel comprising, in terms of weight percentage, 0.4% or less of carbon, above 0.3% but up to 1% of nitrogen, 2% of less of silicon, 12 to 20% of chromium, 13 to 25% of manganese and the balance consisting substantially of iron, the total content of the chromium and manganese being at least 30%.

Abstract: Process for the conditioning of a pigment by applying shear to a crude pigment in the presence of a liquid conditioning agent selected from the group consisting of corn syrup, corn syrup solids and molasses and optionally in the presence of a viscosity modifying agent, in a medium which is essentially free from an added inorganic salt.

Abstract: A device for liquid-solid fluidized beds comprises a reactor in which a number of static mixing elements are disposed in superposed relation. A device of this kind, which is preferably used for chemical reactions, ensures high concentrations of solid and stable operation of the liquid-solid fluidized bed and has good radial exchange properties and reduced backmixing.

Abstract: An alloy of copper, aluminum, nickel and indium is found useful in the fabrication of jewelry and dental appliances. The alloy resists tarnishing and has a gold-like appearance.

Abstract: Uranium-rich niobium and niobium-zirconium alloys possess a characteristic known as shape memory effect wherein shaped articles of these alloys recover their original shape when heated. The present invention circumvents this memory behavior by forming the alloys into the desired configuration at elevated temperatures with "cold" matched dies and maintaining the shaped articles between the dies until the articles cool to ambient temperature.

Abstract: A thermoplastic brazing alloy composition contains a particulate brazing alloy and a flux dispersed in a petroleum wax to form a solid suspension at room temperatures. Preferred petroleum waxes are paraffin wax and microcrystalline wax. On application to a workpiece and heating to brazing temperatures, the wax melts and leaves the brazing site and then volatilizes without leaving any carbonaceous residue and without causing any bubbling or blistering. The use of petroleum waxes is particularly useful when the flux contains a reactive material such as fluoroborate, a silicofluoride or an aluminofluoride.

Abstract: In the production of a grain-oriented electromagnetic steel strip or sheet having a low watt loss, a silicon steel slab containing not more than 0.085% by weight of carbon, from 2.0% to 4.0% by weight of silicon, from 0.030% to 0.090% by weight of manganese, and from 0.010% to 0.060% by weight of sulfur is conventionally hot-rolled, cold-rolled, and final-annealed. However, this production process involves some problems in regard to the uniformity of the magnetic properties along the full length of the coiled strip. According to the present invention, a silicon steel slab additionally contains from 0.02% to 0.2% by weight of copper, the exit temperature during the finishing-hot-rolling step is controlled in such a manner that the temperature of the top portion of the hot-rolled strip is in the range of from 900.degree. C. to 1050.degree. C. and the temperature of the middle and bottom portions thereof is in the range of from 950.degree. C. and 1150.degree. C.

Abstract: A method for manufacturing a semiconductor integrated circuit which comprises providing a semiconductor substrate, forming a recess in the substrate through a pattern of an oxidation-inhibiting film, forming a thin film of a material capable of being oxidizing into an insulating oxide such as silicon on the side and/or bottom surface of the recess, and oxidizing the thin film to fill up with the recess with the resulting oxide which increases in volume.

Abstract: The polyamine compound, TEPAN, a partially cyanoethylated tetraethylene pamine, is reacted with a selected ammonium salt to form an adduct of TEPAN and the selected ammonium salt. The ammonium salt is selected from ammonium perchlorate (AP), ammonium nitrate (AN), ammonium sulfate (AS), and ammonium formate (AF). The process for preparation of the adduct comprises reacting a water solution of the selected ammonium salt with TEPAN while stirring at room temperature. A TEPAN-glycidol derivative product is also reacted with the selected oxidizer salt to form an adduct of the TEPAN-glycidol derivative product.The disclosed adducts (having adduct ratios of 1.0 to 1.8 equivalents of ammonium salt per mole of TEPAN or TEPAN-glycidol derivative product, TEPANOL) improve mechanical properties and processiblity of composite propellant composition containing about 88 weight percent solids (ammonium perchlorate, aluminum, and Fe.sub.2 O.sub.

Abstract: A vacuum brake booster is coupled to a master cylinder at the same time that an output member for the vacuum brake booster is adjusted relative to a piston for the master cylinder. The adjustment is carried out by a plunger adapted to activate a bonding material for bonding the plunger to the output member.

Abstract: A sheet laminating machine for uniting two or several sheets in aligned and superposed relationship to form a multi-layer sheet. The machine comprises an upper sheet-deposit unit (1) for top sheets (2), a lower sheet-deposit unit (3) for bottom sheets (4), a glue-applicator means (5) for applying glue to the upper face of the bottom sheet (4), means (6) for registering the top and upper sheets (2,4), presser means (7) and a discharge unit (8). The invention is characterized in that the registering means (6) is an upper registering plate (13) which is arranged to guide the top sheets from the upper sheet-deposit unit (1) to the plane of advancement of the bottom sheets (4), and a lower registering plate (17) which is arranged to guide the bottom sheets (4) in underneath a registering roller (18). This roller (18) rests in its starting position against the lower registering plate (17) and is mounted with some play on a shaft (23 ) which extends transversely of the plane of advancement.

Abstract: The labeling machine comprises a stationary label hopper, a rotatable turret provided with suction means located adjacent to the leading edge of the terminal label in the article and constructed to enter into the hopper to lift by vacuum the leading edge of the terminal label out of the hopper and then in coaction with a pressure roll to mechanically withdraw the remainder of the label from the hopper and insert such leading label edge into the entry end of a fixed label guideway. Located intermediate the ends of the guideway and clamping the label in the guideway therebetween are a feed roll and a pressure roll spaced from the turret a distance substantially less than the length of the label so that they clamp the label before it moves past the turret and its associated pressure roll. Positioned adjacent to the discharge end of said guideway is a rotatable glue roll onto which the label is directed as it is discharged from said guideway.

Abstract: A method for etching a batch of semiconductor wafers to end point using optical emission spectroscopy is described. The method is applicable to any form of dry plasma etching which produces an emission species capable of being monitored. In a preferred embodiment, as well as a first alternative embodiment, a computer simulation is performed using an algorithm describing the concentration of the monitored etch species within the etching chamber as a function of time. The simulation produces a time period for continuing the etching process past a detected time while monitoring the intensity of emission of the etch species. In a second alternative embodiment, this latter time period is calculated using mathematical distributions describing the parameters of the etching process. In all three embodiments, the actual time that end point of an etching process is reached is closely approximated.

Abstract: A method is provided for increasing the porosity of sintered metal coatings on zirconium oxide ceramics comprising the placing of the metallic coated zirconium oxide part in an acid solution, heating the solution to a temperature below the boiling temperature of the acid, maintaining the part in the acid solution for a sufficient period of time to increase the porosity to a predetermined amount, and removing the part from the acid solution.

Abstract: An extrusion system is provided for covering a conductor (14) with a crystalline thermoplastic elastomer insulating material. The plastic material is tubed onto the conductor by apparatus which includes a core tube (61) that is mounted in an extruder crosshead (41) such that its free end is positioned within the interior of a die (81, 101) and is spaced from an orifice of the die a predetermined percentage of the land length of the die. A flow passage between the core tube (61) and a wall which defines the die cavity is controlled in accordance with the relative value of the thermal energy which is released by the insulating material at the onset of crystallization. In one arrangement, which has been found to be suitable for a crystalline thermoplastic elastomer having a relatively high value of released thermal energy, the die cavity and the core tube are arranged to provide a gradually converging path toward the die opening.

Abstract: A process of making raised line imprinted display mounts utilizing a foam polymer sheet having a thin polymer laminate covering includes the step of selecting a foam polymer sheet having a thin polymer laminate covering. The laminate covering surface is foil stamped with a die under predetermined pressure at predetermined temperatures and for elected dwell time to produce a raised line imprinted lettering or designs on the surface resembling an embossed surface stamping.

Abstract: My invention constitutes a new method of manufacture of vehicle frames utilizing a multiplicity of tubes wrapped with a resin impregnated fiber material.

Abstract: Air or any other gas in a moving stream possessing kinetic energy is impinged on a foraminous barrier having a multitude of dissimilar adjacent nozzle orifices. Such impingement converts the kinetic energy of the stream to internal energy within the gas; and compression through the nozzle orifices of the foraminous barrier also increases the internal energy and reduces the pressure of the air or other gas (Bernoulli's principle), and greatly increases the downstream intensity of turbulence in the flowing air or gas. This treatment conditions the air, after its expansion in a processing chamber, to effect mixing with and rapid vaporization of liquid substances at low temperatures without the addition of external sensible heat, or with less external sensible heat, thus effecting savings of energy in many industrial, commercial and consumer applications.

Abstract: The invention relates to polyoxymethylene fibrids with a reduced specific viscosity of 0.4 to 2.0 dl/g, a specific surface area of 50 to 200 m.sup.2 /g and a freeness of 30.degree. to 80.degree. SR. The fibrids are produced by flash-evaporation of a superheated solution of the polymer, a mixture of 50-95% by weight of a lower alcohol with 1-4 C atoms and 5-50% by weight of water being used as the solvent and are suitable for the production of paper.

Abstract: A process for recovering trioxane from an aqueous solution containing trioxane and triethylamine by the distillation separation process which comprises feeding an aqueous solution containing trioxane and triethylamine to the first distillation column, distilling out triethylamine, trioxane and water from the column top of the first distillation column, withdrawing an aqueous solution containing the major part of the trioxane present in the fed solution from the column bottom of the first distillation column, feeding the withdrawn solution to the second distillation column and taking out the substantially whole quantity of the trioxane fed to the second distillation column from the column top of the second distillation column.

Abstract: A separating nozzle element composed of a separating body and two cover plates between which the body is interposed, the nozzle element being used for the separation of gaseous or vaporous mixtures, is produced by providing a layer of a material whose ability to be removed from the layer can be altered by irradiation, the thickness of the layer being approximately equal to the thickness of the separating body, irradiating the layer, starting at one surface, with radiation which has a penetration depth into the material of the layer which is less than the thickness of the layer, in a pattern corresponding to the cross section of the separating body structure, and removing from the layer material which is more easily removable as a result of the irradiation, to thereby permit the radiation to penetrate to greater distances from the one surface, while continuing the removal of material until the entire thickness of the layer has been subjected to radiation and removal, to form a mold of the separating body.

Abstract: A palladium electroplating process is described in which certain unique anode structures are used. These anodes have surfaces made of conducting ferrites such as nickel ferrite. Such anodes have low oxygen overvoltage, high chemical stability and minimum decomposition of complexing agent in the palladium electroplating bath.

Abstract: orthoAlkyl-orthotrifluoromethyl-2-chloroacetanilides and related compounds are prepared by electrolytic reduction with sulfide cleavage of benzylsulfonium salts with requisite chloroacetylamino and trifluoromethyl substituents on the benzyl group. The compounds are useful as intermediates for conversion to herbicidal compounds.

Abstract: A process for cleaning porous metal filters, particularly stainless steel filters, comprising the steps of:(1) electrolyzing the filter in an electrolyte bath using the filter as one of the electrodes, preferably as the cathode of the electrolytic system, and subjecting the system to an imposed or applied current, highly preferably a DC current; and(2) rinsing the filter to remove electrolytic solution from the filter and flush any residual contaminants from the filter.When organic material is to be removed, a baking step prior to the electrolysis step is used.

Abstract: A device for applying blot-shaped coverings to metal or metallized tapes by electro-plating, comprising a guide member along which a metal and/or metallized tape can be guided and an endless masking member co-operating with the tape and the guide member and having passages, the shapes of which match the desired blot-shaped coverings, whereby the masking member is formed by independent segments, each of which has at least one passage, sealing means being arranged between the segments the structure of said means being such that while maintaining the sealing relationship between the segments they allow a movement of the segments relative to one another in the direction of length of the masking member.