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