Of special interest:
Special nipple and valve unit. The Haberman is used by first filling the nipple unit (turn
the bottle upside down and squeeze the air out of the nipple cylinder. Let it fill with
milk as it re-expands) and then feed to the baby. The nipple will automatically re-fill as
the baby drinks, but the milk will not be able to go back into the bottle due to the
special valve unit. Also of interest is the slit-top nipple (not a cross-cut) and the gauge on the side of the nipple ring. That gauge and the slit nipple will help to control the rate of flow.
The different
parts of the Haberman. From Left to Right: Collar, Valve Disk and Valve Membrane (The
white, flexible valve membrane is shown upside down. The middle plug is where it connects
to the hard plastic disk.).