FIG 3 is a cross sectional view of {HEAD ~ a portion} of {TAIL ~ orifice ring} 12 showing the attachment of cuff 20 to ring 12 in greater detail 
of
FIG 3 is a cross sectional view of { HEAD ~ a portion } of { TAIL ~ orifice ring } 12 showing the attachment of cuff 20 to ring 12 in greater detail
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH