Research/Patents/US 5761154
US 5761154

Assignee

Filed

Aug 26, 1969

Granted

Jun 2, 1998

Location

Abstract

There is disclosed an exploder for an underwater weapon which periodicallyadiates an acoustic signal and activates the weapon only when the echo signal has the same phase as the radiated signal. Thus, echoes from any air-water interface are disregarded.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jan 28, 1982

Rescinded

Nov 19, 1997

Duration

15 years, 9 months

Back to patent indexSource: USPTO 35 USC §181 secrecy order records