Dispensing pump for bottle

摘要

The pump has a bellows and inlet and nozzle valves. A nozzle valve plug (21) fits in the top (10) of a cap (9) fitting over the pump bellows (B), whose side wall rests against a wall (8'') of a pot (8) enclosing the bellows. The inlet valve plug (17) fits in the bottom (7) of the pot. There is pref. a tapped boss on the underside of the bottom containing a central connecting pipe (13) to a standpipe (14), with the valve plug mounted in the connectinq pipe.