JOHN LEONARD SHERMAN
Medical Practice in Silver Spring, MD
License number
Pennsylvania MD028532E
Category
Medicine
Type
Medical Physician and Surgeon
Address
Address
2
Silver Spring, MD 20904
Pennsylvania
Pennsylvania
Professional information
Differential Pressure Sensor
US Patent:
5046427, Sep 10, 1991
Filed:
Nov 1, 1982
Appl. No.:
6/445329
Inventors:
Charles A. Rowzee - Burtonsville MD
John D. Sherman - Silver Spring MD
John D. Sherman - Silver Spring MD
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
F42B 2204
US Classification:
102418
Abstract:
A pressure sensor for use with a sea mine for detecting the presence of a ssing vessel by sensing a change in ambient water pressure caused by the Bernoulli effect relating to hydrodynamic flow induced by the vessel's motion. The sensor emits a responsive signal which can be used alone, or with signals from other influence sensors (acoustic and magnetic), to determine when the sea mine shoud be exploded. The sensor provides for equal sensitivity independent of the ambient pressure of the water at various depths at which sea mines may be planted, and employs electrical filters to eliminate noise.