Abstract: A computer driven device for making silk screens suitable for making signs, PC boards, mask, metal, textile graphics and the like is disclosed. The device uses a laser beam to burn holes in a thin sheet of plastic, preferably nylon. The laser beam is directed toward the surface of the nylon screen and the beam is moved incrementally under computer control to position the two before activation of the laser. The desired sign or pattern to be burned into the screen is constructed by means of a microprocessor or PC using a desk top type publishing program. The finished nylon "silk" screen can be used in the same manner as conventional silk screens.

Abstract: The present invention relates to a process for generating reactive species for destroying toxic chemicals. This process first contacts air or oxygen with aqueous emulsions of molten yellow phosphorus. This contact results in rapid production of abundant reactive species such as O, O.sub.3, PO, PO.sub.2, etc. A gaseous or liquid aqueous solution organic or inorganic chemicals is next contacted by these reactive species to reduce the concentration of toxic chemical and result in a non-toxic product. The final oxidation product of yellow phosphorus is phosphoric acid of a quality which can be recovered for commercial use. A process is developed such that the byproduct, phosphoric acid, is obtained without contamination of toxic species in liquids treated. A gas stream containing ozone without contamination of phosphorus containing species is also obtained in a simple and cost-effective manner.

Abstract: The present invention relates to a process for the removal of cholesterol from a processed or un processed dairy product, which process comprises: (a) obtaining a processed or unprocessed dairy product containing cholesterol (b) contacting the dairy product at a temperature of between about 35.degree. and 80.degree. C. with an amount of saponin effective to bind up to about 90% of the cholesterol present in the dairy product; (c) contacting a temperature of between about 35.degree. and 80.degree. C. the cholesterol:saponin with an effective amount of diatomaceous earth; (d) separating the insoluble cholesterol: saponin/diatomaceous earth by filtration or centrifugation; and (e) recovering the dairy product having a reduced content of cholesterol. The process particularly useful wherein the dairy product is selected form raw milk, pasteurized milk, raw cream, pasteurized cream, butteroil or anhydrous fat.

Abstract: A pulsator, adapted for use in irrigation and other systems requiring the uniform discharge of water or other liquids in intermittent pulses and at regular frequencies, comprises a casing having an expansible elastomeric tube disposed therein. The tube is adapted to be exposed to pressurized liquid for movement between contracted and expanded conditions of operation for controlling the intermittent opening of a valve, formed in part by the tube. A flow control, located at the inlet to the pulsator, functions to modulate the pressure of the incoming liquid to control the flow rate of the liquid communicated to an expansible chamber defined in part by the tube. When the pressure in the chamber exceeds a predetermined level, the valve will open to intermittently discharge pulses of liquid to a distributor, such as an irrigation sprayer. The pulsator is preferably structured to insure continuous communication of liquid from the inlet to the pulsator to the chamber.

Abstract: The present invention relates to porphyrins and to metal ion-containing monomers and polymers. The monomer ##STR1## wherein A, R.sup.1,R.sup.2,R.sup.3, and R.sup.4 defined herein, is used with dianhydride to produce a porphyrin polymer or a metal ion containing porphyrin polymer. These polymers are useful as electrical conductors and as liquid crystal polymers, non-linear (NLO) materials, magnetic materials, electrochromic polymers photo-and electrocatalysts and advanced materials.

Abstract: A throwing disc, adapted for use in a catch and throw game, comprises a disc shaped member that is aerodynamically configured for permitting the disc to be thrown over a substantial distance and received by a catcher's mitt or the like. A set of fasteners, preferably Velcro brand hook fasteners, are formed on the catcher's mitt. A set of Velcro brand loop fasteners are positioned on the disc-shaped member to project substantially above at least one of its upper and lower sides for engaging and releasably interlocking with the fasteners formed on the catcher's mitt. In a preferred embodiment of this invention, the fasteners provided on the disc are dome-shaped.

Abstract: The present invention concerns a three dimensional conductive organic polymer covered micro structure having improved current carrying capacity as compared to a substantially smooth surface. More specifically, it relates to a three-dimensional poly(aniline) or poly(pyrrole)-substrate micro structure for use as a battery electrode, having improved properties as compared to a substantially smooth surface, which structure comprises: a thin surface layer of poly(aniline) or poly(pyrrole) film on a substrate surface, wherein the polyaniline or poly(pyrrole) film has a thickness of between about 0.1 and 10 microns and the substrate surface is irregular or patterned having a protruding surface, wherein representative protrusions amount to between about 40 to 90 percent of the surface of the electrode. The processes to produce the three-dimensional microstructure are also disclosed.

Abstract: The present invention relates to an vitro device for the removal of ionized substances from a membrane sample without mechanical penetration, which device comprises:(a) a positive electrode;(b) a negative electrode, and(c) electrical insulation between subpart (a) and (b), wherein the positive electrode, and the negative electrode, and electrical insulation are positioned on the same side of the membrane sample.The present invention also relates to a device for the removal of or delivery of ionized substances to a mammal through intact skin or mucosal membrane without mechanical penetration, which device comprises: (a) a positive electrode, (b) a negative electrode, and (c) an electrically insulating material between subpart (a) and (b), wherein the positive electrode, negative electrode and insulating material are physically positioned so that each present a common surface of the device for contact with the same surface of the skin or mucosal membrane of the mammal.

Abstract: A plurality of racking systems are adapted to store palletized cartons in a refrigeration unit or the like prior to shipment of the cartons to market. Each racking system comprises laterally spaced overhead support platforms having their inner ends suitably spaced apart to provide a clearance accommodating the entrance of an extended mast of a lift truck therein. Upper groups of palletized cartons are loaded and stored on the platforms, next followed by the depositing of lower groups of palletized cartons within a lower storage space located at ground level.

Abstract: The present invention relates to a magnetically active organometallic Schiff base polymer having a molecular weight of between about 4,000 and 50,000 daltons. In an additional aspect, the present invention relates to a process for the preparation of magnetically active organometallic polymer having a molecular weight of between about 4,000 and 50,000 daltons, wherein the polymer comprises a multiplicity of Schiff base tridentate chelating groups having the capacity to combine with the iron (II) or iron (III) ion of an organic salt, which process comprises:(a) combining at least one organic diamine including hydrazine with at least one organic diketone or dialdehyde in an anhydrous dipolar aprotic solvent for a time sufficient to produce to polymer at a temperature of between about 50.degree. C. and 200.degree. C.

Abstract: The invention relates to an absorption system having a regenerator (17) wherein an absorption process of the absorption of low-pressure ammonia vapor into a weak liquid solution of ammonia-water is carried out in the shell (16) of the regenerator (17) with the heat of absorption being used in a generation process wherein a high-pressure ammonia water solution is boiled in a conduit (14) passing through the regenerator (17). A waste heat recovery conduit (40, 40', 40") is provided for concurrent flow of an ammonia-water solution and ammonia-water vapor, the flow being heated (46) to boil the solution. The heated vapor is then introduced into the absorption process in the shell (16) of the regenerator (17) with the heat (46) used to boil the solution in the waste heat recovery conduit (40) being recuperated in the regenerator as the hot vapor is absorbed into the ammonia-water solution therein.

Abstract: An emitter has a plurality of circumferentially disposed fittings releasably connected thereon. A pressure-compensated flow control valve is mounted in at least some of the fittings and the control valves have varied flow rates. A plug is inserted into outlets from the emitter not having a fitting/control valve mounted therein. The emitter is adapted to replace a standard sprinkler head of a sprinkler circuit to provide the circuit with both sprinkler and micro-irrigation capabilities.

Abstract: A mobile transfer and transport vehicle is adapted to move a barrier system, having a plurality of pivotally interconnected and closely spaced modules, on a roadway or the like. The vehicle includes a conveyor having series of guide and support rollers for engaging, supporting, lifting and transferring the barrier system from a first side of the vehicle to a second side thereof. A drive system is mounted on the conveyor for frictionally engaging the modules to either pull or retard movement of the modules through the conveyor. The drive system aids in maintaining proper spacing between the modules, particularly when they are moved on a curved roadway.

Abstract: The present invention relates to porphyrin and metal ion-containing monomers and polymers. The monomers ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently selected from H, alkyl having 1 to 6 carbon atoms, phenyl or phenyl substituted with 1 to 3 alkyl groups each having 1 to 6 carbons or with 1 to 3 halogen atoms and A is a metal atom, are used with a diamine or a dialdehyde respectively to produce a porphyrin polymer or a metal ion containing porphyrin polymer. These polymers are useful as electrical conductors and as liquid crystal polymers.