Device for venting excess pressure for a gas mask

Device to evacuate people from very high buildings in state...

Device transportable by air for dropping or spraying liquid...

Device with a lifeline

Devices and methods for decreasing human pathogen transmission

Devices, systems and methods for generating electricity from...

Devices, systems and methods for operation of breathing...

Diaphragm actuated sprinkler head

Diaphram latch valve

Differentially acting op detoxifying sponges

Digital situation indicator

Discharge head having a magnetic plug retaining assembly

Discharge head having constant force plug retaining member

Discharge of fire extinguishing agent

Discharging fire and explosion suppressants

Discharging fire and explosion suppressants

Dispensing valve and method for dispensing a fluid under...

Dispersal of flammable materials

Dispersion burner for firefighter training

Disposable aerosol mask