Abstract: A method and apparatus for filling generally cylindrical molds with powder particles is disclosed. A stream of powder particles is fed into a mold, and the powder particles are compacted in spirally formed layers so that the particles are compacted continuously in localized adjacent areas. The powder filling apparatus is comprised of a blade means configured to direct powder particles to spread evenly in the mold and urge the powder particles to compact while the blade means is rotated about an axis. A shaft is attached to the blade means for rotation of the blade means about the axis. A chuck means is slideably mounted on the shaft means through an axial channel, the chuck means being configured for applying force to the shaft while permitting movement of the shaft axially through the channel. A drive means is operatively connected to the chuck means for applying force to rotate the chuck about the axis.

Abstract: A method of isolating polymer resins from organic solvents is provided wherein the organic solvent is volatilized in the presence of an aqueous slurry of solid polymer particles of a particular size which provide agglomeration sites for the polymer resin within solution. The process can function continuously with various polymers including polycarbonates, polystyrene, polyetherimides, polyphenylene ethers, polyesters, etc.

Abstract: An improved self-sharpening refractory metal cutting tool presenting an overhanging cutting element of width about equal to the depth of the cut to be taken and of maximum thickness equal to tolerable tool flank wear is provided with a thin, chemically stable, chemically inert refractory coating metallurgically bonded to the rake face of the tool, at least on the rake face of the cutting element.

Abstract: A digital data communications method and system combining frequency agility with a frequency-shift-keyed signal to transmit a unique code word representing a plurality of data states. Each code word comprises a plurality of chips, each of which is an integer subportion of the bit time interval in which one data bit is communicated. The multiple-chip word provides a frequency-hopped spread spectrum signal in which the nominal carrier frequency value is offset for transmitting binary data, or is offset in either frequency direction by different discrete amounts for transmitting multilevel digital data, to allow the data value to be properly decoded at a receiver even if the transmitter instantaneous frequency during at least one chip time interval is jammed by another signal. The frequency offset, can also be provided in complementary fashion during selected chip time intervals to even further encode the data bit being communicated and further reduce the probability of jamming.

Abstract: A method is provided for making silicone-polyester block polymers comprising effecting reaction between an aminoalkylpolydiorganosiloxane and a polyester, such as a polyalkyleneterephthalate, under reduced pressure and under molten conditions.

Abstract: A method for making diarylthioethers including thioetherbis(phthalic anhydrides) and thioetherbis(phthalimides) in the absence of a solvent medium by the interaction of sulfide compounds, including alkali metal sulfides and alkali metal hydrogen sulfides, with molten organo-substituted aromatic compounds including phthalic anhydrides and phthalimides mediated by a phase transfer catalyst.

Abstract: A copper-clad laminate having special utility in the production of high resolution printed circuit patterns is made by a method which includes as the step of forming an initial copper film by vapor depositing copper directly in contact with an as-rolled aluminum carrier sheet at temperature between about 100.degree. C. and 250.degree. C. so that the carrier release peel strength has an average value between about 0.5 and 2.0 pounds per inch.

Abstract: A nuclear fuel material green body of density from about 30 to 70% of theoretical density having tensile strenght and plasticity adequate to maintain the integrity of the body during processing leading to ultimate sintered condition is produced by adding an amine carbonate or carbamate or mixture thereof to a particulate mass of the nuclear fuel material under conditions resulting in reaction with the amine compound to form a water-soluble compound effective as a binder for the particulate material.

Abstract: A ferrofluid comprised of composite particles comprised of polymer-enmeshed magnetic metallic particles in indefinite suspension in a carrier fluid is produced by providing a pair of electrodes formed of a composition which will produce the desired magnetic metallic particles, immersing the electrodes in an organic dielectric liquid, applying a pulsed electric potential between the electrodes, adjusting the gap therebetween until there is an electric discharge eroding an electrode producing magnetic metallic particles enmeshed in polymer, recovering the magnetic material from the dielectric liquid and dispersing the magnetic material in a carrier fluid producing ferrofluid.

Abstract: A self-lubricating cemented carbide cutting tool of special utility in titanium machining having a copper coating bearing a film of copper iodide is provided by coating the tool with a layer of copper, heating to bond the copper to the cemented carbide and thereafter reacting the copper with iodine to form the film of desired thickness.

Abstract: A vapor compression cycle device is provided using two capillaries to maximize efficiency benefits due to capillary flowrate regulation thus permitting the working fluid flowrate to depend on the level of liquid working fluid accumulated at the condenser.

Abstract: A vapor compression cycle device is provided which incorporates a first expansion device, a second expansion device with inlet positioned upstream from said first expansion device and means to transfer heat from the working fluid liquid flowing through said first expansion device to the expanded working fluid flowing through said second expansion device so as to maximize efficiency benefits due to flowrate regulation thus permitting the working fluid flowrate to depend on the level of liquid working fluid accumulated at the condenser.

Abstract: An ion exchange catalyzed bisphenol process is described wherein condensation reaction temperature is increased along the path of the reaction which limits the formation of color bodies, tars and other condensation reaction by-product impurities.

Abstract: A nuclear fuel material green body of density from about 30 to 70% of theoretical density having tensile strength and plasticity adequate to maintain the integrity of the body during processing leading to ultimate sintered condition is produced by adding one or more amines to a particulate mass of the nuclear fuel containing about five percent of ammonium uranyl carbonate under conditions resulting in reaction of the amine with the ammonium uranyl carbonate, liberation of ammonia and formation of a water-soluble uranyl compound more effective as a binder than the ammonium uranyl carbonate.

Abstract: Certain silicon-carbide shaped refractories can be obtained at molten silicon infiltration temperatures in a pollution-free manner by using an organic binder-free putty-like material of silicon powder, particulated carbon, including carbon fiber, and water, and optionally silicon carbide powder.

Abstract: Filaments of glassy metallic alloys prepared by chill block melt-spinning are consolidated under heat and pressure by an extrusion process. Products obtainable by the process include discrete bodies of glassy metallic alloys of substantially uniform composition and articles having one or more layers of glassy metallic alloy clad onto one or more non-glassy metallic alloy substrates.

Abstract: Low voltage varistors having one or more recesses or dimples which reduces the thickness of the varistor in the recessed areas are provided by an improved process which comprises fitting a pressing surface on a die punch with a resilient material, preferably an abhesive material such as polydimethylsiloxane, having one or more nipples whereby during pressing of a metal oxide varistor powder contained in the die cavity the nipple imparts a depression thereby reducing the thickness of the varistor body in said depression. In addition, the resilient material aids in the distribution of the powder during pressing and with the preferred abhesive material aids also in the release of the pressed body from the die.

Abstract: This invention relates to copolymerizable ultraviolet light absorber compounds having the formula: ##STR1## where: R is alkylene oxyalkylene, alkyleneoxyalkylene or phenylene, which R groups are of up to 10 carbon atoms and are unsubstituted or substituted with hydroxy;R' and R" are independently hydrogen or alkyl; C.sub.1 -C.sub.6 ; andR'" is alkyl C.sub.1 -C.sub.6, substituted alkyl C.sub.1 -C.sub.6, or alkoxy C.sub.1 -C.sub.6.

Abstract: A process for preparing a substantially salt free N-acyl taurine by reacting 1 mole of a higher molecular weight carboxylic acid chloride with 1 mole of a taurine salt containing at least 1 N-bonded H atom in a lower alkanol initially containing no more than about 15% by weight of water and about 1 mole of an alkali metal hydroxide at elevated temperatures, preferably at reflux, separating the insoluble precipitated alkali metal chloride from the alkanolic reaction medium at a temperature high enough to solubilize the N-acyl taurine reaction product, and cooling the reaction medium low enough to precipitate the desired N-acyl taurine.

Abstract: A low-foaming machine dishwashing composition comprising (1) an alkali metal, or ammonium, carbonate and (2) a water soluble salt of a polyelectrolyte having an average molecular weight of about 500-4000 and the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.4, and R.sub.5 can be hydrogen, C.sub.1 -C.sub.4 lower alkyl, or a combination thereof; R.sub.3 and R.sub.6 can be hydrogen, carboxy, or alkylcarboxy; and the sum of (a+b) is .gtoreq.5 to .ltoreq.30, preferably .gtoreq.7 to .ltoreq.15, employed in a weight ratio (polyelectrolyte:carbonate) of 5:95-20:80, and, preferably, a low foaming surfactant, results in effective and economical dishwashing.