Testing system for self-contained breathing apparatus regulator
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsJack Wooten, Mark Black, Tommy Hosea
Life of this patent
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Abstract
A Self-Contained Breathing Apparatus (SCBA) regulator is tested using a breath simulator having (i) a cup-shaped housing defining an interior volume and an open end, and (ii) an empty syringe with a plunger disposed therein and terminating in a dispensing tip coupled to the housing for sealed fluid communication with the interior volume thereof.
Claims9
A system for testing a Self-Contained Breathing Apparatus (SCBA) regulator, comprising:
- a cup-shaped housing defining an interior volume and an open end formed by an annular rim of said housing;
- an empty plunger-type syringe having a dispensing tip, said syringe coupled to said housing with said dispensing tip in sealed fluid communication with said interior volume;
- and
- a device coupled to said housing for indicating one of pressure and vacuum in said interior volume.
A system for testing a Self-Contained Breathing Apparatus (SCBA) regulator, comprising:
- a rigid, cup-shaped housing defining an interior volume and an open end adapted to form a sealing relationship with a gasket of a SCBA regulator;
- an empty syringe having a plunger disposed therein and terminating in a dispensing tip, said syringe coupled to said housing with said dispensing tip in sealed fluid communication with said interior volume;
- and
- a device coupled to said housing for indicating one of vacuum and pressure in said interior volume when said plunger is retracted and depressed, respectively.
A method of testing a Self-Contained Breathing Apparatus (SCBA) regulator, comprising the steps of:
- providing a breath simulator having (i) a rigid cup-shaped housing defining an interior volume and an open end, (ii) an empty syringe with a plunger disposed therein and terminating in a dispensing tip coupled to the housing for sealed fluid communication with the interior volume thereof, and (iii) a pressure gauge coupled to the housing for indicating one of vacuum and pressure in the interior volume;
- coupling the open end of the breath simulator in a sealed fashion to a SCBA regulator;
- retracting the plunger until the pressure gauge detects a vacuum pressure of approximately −4 inches of water;
- and
- depressing the plunger until the pressure gauge detects a positive pressure of approximately +4 inches of water.
Dependencies are inferred from the claim text.