Adjustable check valve for use in an oxygen regulator

Air feed valve and exhaust valve to be attached to an underwater

Altitude compensation valve assembly

Altitude sensing control apparatus for a gas turbine engine

Anti-pollution valve for use with shipboard storage tanks

Apparatus and method for adapting sensors to an irrigation contr

Apparatus and method for controlling a watering system

Apparatus responsive to entry into space and method of operation

Atmospheric pressure compensation device

Automatic closing device for a shut-off device

Automatic control for an adjustable member

Automatic diluter/demand oxygen regulator adapted for chemical o

Automatic flushing system and method for a potable water...

Automatic freeze protection system for domestic plumbing...

Automatic liquid delivery apparatus

Automatic liquid delivery apparatus

Automatic sprinkler control override apparatus

Automatic sprinkler control override system

Automatic valve closer

Automatic water control apparatus