Abstract: A fertilizer and irrigation apparatus includes an inflow pipe, a shunt pipe connected to the inflow pipe, and a chemical additive assembly connected in parallel to the shunt pipe. An outflow pipe is also connected to the shunt pipe. A portion of the inflow pipe, the shunt pipe, the chemical additive assembly, and the outflow pipe are all above ground. The chemical additive assembly includes a quantity of a chemical additive. A manifold is connected to the outflow pipe. A plurality of in-ground distribution conduits are connected to the manifold, wherein each of the distribution conduits includes at least one above-ground sprinkler head. In addition, an auxiliary inflow assembly can be connected to the inflow pipe so that chemical additives can be supplied to the fertilizer and irrigation apparatus from an outside source.

Abstract: A method and system for determining document content based actions. A rule engine is provided with a document to be acted on, preferably in XML format. The rule engine is also provided with a set of rules and associated actions to be taken upon special conditions. The document is evaluated according to the rules and the document contents; each of the rules is parsed into a parse tree, the document is further evaluated, including, for the provided document, populating the parse tree with at least a portion of the document contents, to create a content-populated parse tree. The portion of the actions to be initiated is selected based on the content-populated parse tree. Actions could include, by way of example, security control or further routing of the document.

Abstract: A fertilizer and irrigation apparatus includes an inflow pipe, a shunt pipe connected to the inflow pipe, and a chemical additive assembly connected in parallel to the shunt pipe. An outflow pipe is also connected to the shunt pipe. A portion of the inflow pipe, the shunt pipe, the chemical additive assembly, and the outflow pipe are all above ground. The chemical additive assembly includes a quantity of a chemical additive. A manifold is connected to the outflow pipe. A plurality of in-ground distribution conduits are connected to the manifold, wherein each of the distribution conduits includes at least one above-ground sprinkler head. In addition, an auxiliary inflow assembly can be connected to the inflow pipe so that chemical additives can be supplied to the fertilizer and irrigation apparatus from an outside source.

Abstract: A handle for turning on and off a faucet has a push button release for removal of the handle from a stem of the faucet structure. Pressing down upon the push button causes a latch attached to the handle to disengage from a slot in the stem allowing removal of the handle. Following removal of the handle, the faucet structure and/or the handle can be repaired and/or cleaned if necessary. The original handle or a new replacement handle can then be quickly and easily put back into place by reengaging the latch on the handle with the slot in the stem.

Abstract: A plasma torch electrode has a copper outer shell on an inner portion of which is provided a more durable composition of a silver alloy by pressing or casting to achieve longer lifetime under arcing conditions in air or oxygen while minimizing the cost of materials and fabrication.

Abstract: A safe and effected method of starting up operating and shutting down a plasma fired cupola. The starting up and shutting down procedures incorporated interlocks and warning signals that insure the safety of the operators and equipment and the controls utilize the temperature of the iron in the spout as a focal point to control the torch output by separately changing field current, arc current, and torch air supply, to compensate for changes in charge make-up, particulate feed, percentage of shroud air to shroud recirculating gases to produce different irons at various melt rates.

Abstract: A radio interferometer system and method for obtaining more accurate readings from a radio source by processing the received signal as a plane wave and establishing coincidence locations and conditions, and discarding readings which are noncoincidence within a selected tolerance.

Abstract: A privacy communication method and system which utilizes coherent, continuously changing frequencies for keyed, pulsed, and voice communications. A synthesized swept frequency or "chirp" signal imparts a privacy or secure communications capability to the communications signal by virtue of the random or pseudo-random nature of the transmitted signals which is programmed.

Abstract: An array of antennas is sequentially sampled by digital commutation means provide a synchronous display of a synthesized antenna array pattern of reception on a cathode ray tube indicator. The commutation means and digital means for generating sine and cosine signals operate from a common oscillator source. Digital means are provided to advance or delay the phase relation of the pattern or of a strobe line with respect to the CRT sweep to effect rotation thereof into azimuthal alignment. Automatic bearing readout is digitally accomplished when alignment is achieved.

Abstract: A process for the production of magnetic spheres from grit of magnetite ore by introducing the grit into an arc heated gas jet, thus heating the grit to a temperature of at least 1600.degree. C, and allowing the melted magnetite droplets to spheroidize and cool to a solid state.