Research/Patents/US 5751659
US 5751659

CERAMIC MASS LOADED LONGITUDINAL VIBRATOR

Assignee

Filed

Jan 28, 1982

Granted

May 12, 1998

Location

Abstract

A sonar transducer displaying improved reliability and operating characteristics by employing multiple ceramic stacks, novel support structure and an improved gaseous environment.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jan 28, 1982

Rescinded

Jan 21, 1998

Duration

15 years, 12 months

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