Visible operation drip feeder for medical transfusions etc. - has automatic float actuated non return valve on delivery outlet

摘要

Drip-feeder appts. comprises a hollow cylindrical body of flexible transparent plastic. Between an inlet pipe at the top and a delivery pipe at the bottom, the body contains a float with a convex stopper on its base. When liq. level falls in the body to an extent which lowers this float sufficiently, the stopper lowers the float trail passage in a valve seating. The body can be squeezed to displace a grommet to limit float movement.