{HEAD ~ a cover} disposed over said membrane and sealingly engaged with {TAIL ~ said body} to accommodate axial sliding movement from an outer position to an inwardly displaced position, said cover defining a dispensing orifice and defining an edge for severing at least part of said membrane as said cover is non rotatably moved from said outer position to said inwardly displaced position, said cover and said body together defining a chamber over said membrane 
sealingly engaged with
{ HEAD ~ a cover } disposed over said membrane and sealingly engaged with { TAIL ~ said body } to accommodate axial sliding movement from an outer position to an inwardly displaced position , said cover defining a dispensing orifice and defining an edge for severing at least part of said membrane as said cover is non rotatably moved from said outer position to said inwardly displaced position , said cover and said body together defining a chamber over said membrane
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH