Abstract: A two-part plug assembly is disclosed for a drip-proof spout on an aseptic flexible container for flowable materials. The two-part plug assembly may include a plug and a plug insert, wherein the plug insert may include a flow inhibitor such as a baffle or valve. In a first step, the plug assembly is removably placed in a first position on a spout prior to aseptic filling. During filling, the plug assembly is removed. After filling, the plug insert assembly is replaced in a second position further down the spout wherein the plug insert fixedly engages the spout. When fixedly engaged to the spout, the plug insert remains inside the spout when the plug is removed prior to a user dispensing the flowable material. The flow inhibitor in the plug insert provides protection from leaking when the flexible container is inverted or inadvertently squeezed.

Abstract: Apparatus is described for measuring the time interval between the occurrences of an electrical signal at two different points in a circuit or electrical system. Each signal drives a receiver containing a high-Q coaxial resonator. The resonators begin to oscillate in timed relation with the reception of the associated signals. Each receiver signal is mixed with the output signal of a common local oscillator and the respective mixed signals are amplified by IF amplifiers. The phase difference between the output signals of the IF amplifiers is representative of the difference in time of reception of the signals, but on an expanded time scale. The phase difference is detected and used to gate the output signal of an oscillator into a counter circuit. Thus, the accumulated contents of the counter is representative of the time difference of reception. Circuitry is also provided for indicating the polarity of the phase shift.