Accession Number : ADD016561

Title :   Reactive, Closed-Circuit Underwater Breathing Apparatus.

Descriptive Note : Patent, Filed 29 Sep 92, patented 31 May 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Clark, Joyce R ; Joye, Donald D ; Carlson, Neal A ; Wechgelaer, Peter

Report Date : 31 May 1994

Pagination or Media Count : 9

Abstract : This invention comprises a tunable underwater breathing apparatus (UBA) in 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 with minor redesign and some additions.

Descriptors :   *BREATHING APPARATUS, *UNDERWATER, *PATENTS, FREQUENCY, IMPEDANCE, INVENTIONS, RESONANT FREQUENCY, RESPIRATION, SCUBA APPARATUS, LIFE SUPPORT SYSTEMS, SETTING(ADJUSTING)

Subject Categories : Life Support Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE