Alarm device for respirators
Audible signal valve knob
Audible signal valve knob
Audible vibratory reed assembly
Depth sensitive mechanical acoustic signal generating device
Detector for top dead center position of a piston for automobile
Differential pressure signal device
Differential-vacuum alarm device
Dirty filter indicator
First out indicator
Hair dryer with alarm notifying user of clogged filter
Lid knob of pressure cooker
Low pressure alarm
Low pressure differential detecting whistle
Maintenance alarm actuator
Mounting for audible signal valve knob
Multi-depth acoustic signal generating device
Pheumatic alarm for respirator
Pneumatically powered oxygen pressure loss alarm system
Pressurized fluid circuits