发明名称 |
Underwater sound generator |
摘要 |
An underwater sound generator comprising dual opposed pistons in a housing. Dynamic seal assemblies of flexible waterproof material are compressed against the peripheries of the pistons and the housing and form a watertight seal that allows axial motion. Controllers regulate the delivery of pressurized hydraulic fluid to hydraulic actuators which drive the axial motion of the pistons according to a predetermined variation.
|
申请公布号 |
US4556963(A) |
申请公布日期 |
1985.12.03 |
申请号 |
US19820445875 |
申请日期 |
1982.12.01 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
HUGUS, GEORGE D.;YOUNG, A. MARK |
分类号 |
G01V1/145;(IPC1-7):G01V1/38;G01V1/04;H04B11/00 |
主分类号 |
G01V1/145 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|