{TAIL ~ The valve} 1, wherein {HEAD ~ said latching means} define a held position of said counterholder in said housing 
{ TAIL ~ The valve } 1 , wherein { HEAD ~ said latching means } define a held position of said counterholder in said housing
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH