A self sealing, {HEAD ~ pressure openable, slit type valve} may be mounted in {TAIL ~ the cover} at the dispensing orifice to control flow through the orifice 
mounted in
A self sealing , { HEAD ~ pressure openable , slit type valve } may be mounted in { TAIL ~ the cover } at the dispensing orifice to control flow through the orifice
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH