said clamping member holding {HEAD ~ said window unit frame} in electrical conductive engagement with {TAIL ~ said support member} 
said clamping member holding { HEAD ~ said window unit frame } in electrical conductive engagement with { TAIL ~ said support member }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL