{HEAD ~ The membrane} communicates with the chute such that the center portion of {TAIL ~ the membrane} is deflected in response to a given pressure increase in the chute, in order to actuate the switch 
{ HEAD ~ The membrane } communicates with the chute such that the center portion of { TAIL ~ the membrane } is deflected in response to a given pressure increase in the chute , in order to actuate the switch
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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