JOHN ROBERT CLARKE
Pilots at Palm Harbour Blvd, Panama City, FL
License number
Florida A0339477
Issued Date
Dec 2016
Expiration Date
Dec 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
134 Palm Harbour Blvd, Panama City, FL 32408
Professional information
Scientific Director At Us Navy
Position:
Scientific Director at US Navy
Location:
Panama City, Florida Area
Industry:
Military
Work:
US Navy
-
Scientific Director
Manually Tunable, Closed-Circuit Underwater Breathing Apparatus
US Patent:
5485834, Jan 23, 1996
Filed:
Aug 10, 1994
Appl. No.:
8/289022
Inventors:
Donald D. Joye - Exton PA
William H. Mints - Bowie MD
John R. Clarke - Panama City FL
Peter Wechgelaer - Kensington MD
William H. Mints - Bowie MD
John R. Clarke - Panama City FL
Peter Wechgelaer - Kensington MD
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
A62B 900
US Classification:
12820513
Abstract:
This invention is a manually tunable underwater breathing apparatus (UBA) which the resonant frequency of the UBA may be adjusted to meet the diver's breathing frequency by controlling the inertance component of the UBA impedance. The principles of the present invention may be adapted to existing UBA by adding a tuning apparatus comprising a valve, a tee and a tuned length of hose. Water displaced by volume change in the breathing bag due to exhalation/inhalation is partly diverted through the valve. Depending on the valve opening set by the diver the inertance and resonant frequency of the UBA can be altered to reduce breathing load.