Piezoelectric energy source

US3967141A · kind A · utility

Assignee

• Dynamit Nobel GmbH · DE

Inventors

• Heinz Gawlick
• Uwe Brede · Ergolding, DE
• Hellmut Bendler · Birkenfeld, DE

Key dates

• Filing date: Nov 3, 1971
• Grant date: Jun 29, 1976
• Expiry date: Nov 3, 1991

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N30/30

Abstract

A piezoelectric energy source having a piezoelectric transducer mounted in a housing and a movable piston arranged in the housing to bias the transducer to provide a desired electrical output. The piston exerts pressure on the transducer in response to a pyrotechnic charge and is locked in a predetermined biasing position by a locking arrangement such that a constantly effective pressure is exerted on the transducer.