Abstract: A valve is disclosed that includes a valve body defining an inlet and a plurality of outlets, the inlet and the plurality of outlets cooperating to form a plurality of alternative fluid flow paths through the valve body. The valve further includes an outlet selection member carried by the valve body and defining a port configured to complete a fluid flow path selected from the plurality of alternative fluid flow paths. The valve further includes a first magnet assembly configured to enable reciprocation of the outlet selection member and a second magnet assembly configured to enable rotation of the outlet selection member. A washer fluid supply system incorporating the valve and a method of operating the valve are also disclosed.

Abstract: A valve is disclosed that includes a valve body defining an inlet and a plurality of outlets, the inlet and the plurality of outlets cooperating to form a plurality of alternative fluid flow paths through the valve body. The valve further includes an outlet selection member carried by the valve body and defining a port configured to complete a fluid flow path selected from the plurality of alternative fluid flow paths. The valve further includes a first magnet assembly configured to enable reciprocation of the outlet selection member and a second magnet assembly configured to enable rotation of the outlet selection member. A washer fluid supply system incorporating the valve and a method of operating the valve are also disclosed.

Abstract: A sampling nozzle is operatively coupled to a vacuum device and has a tubular coring member removably mounted at its upper end for extracting a sample of material from goods suspected of being hazardous. A canister is removably carried in the nozzle beneath the coring member in co-active, in-feed relation therewith for receiving the extracted sample. Air passages through the nozzle sidewall cooperate with a conical shroud carried on the upper end of the nozzle to create a blanket of air vacuum surrounding the coring member and the area around which the sample has been extracted. A high efficiency particulate filter may also be provided between the nozzle and the vacuum device. The sample is extracted while the surrounding blanket of air vacuum is active by placing the sampling nozzle against the goods to be sampled with the coring member in firm contact with the surface of the goods and pressing the nozzle causing the coring member to penetrate the material.

Abstract: Method of determining the direction of a radio source, wherein, using a circular array of aerials, a sinusoidal phase graph is determined and the direction of the radio source relative to a reference direction is determined from one or more zero crossings of the phase graph.

Abstract: Angular ambiguity, particularly in measurements made in radio interferometers, is resolved by comparing an ambiguous value for a desired angle with an unambiguous value for an angle which is ideally equal to the desired angle but which may differ from it by an error angle less than .pi.. For example, ambiguity in the phase difference between a pair of widely-spaced antennas may be resolved by reference to the sum of two unambiguous phase differences between each of those antennas and an intermediate antenna. The effect on the ambiguity-resolution process of certain sources of phase errors in practical systems can be eliminated, leaving a large tolerance to remaining errors.