The hollow protuberances of the elastomeric mat produce {HEAD ~ a clearance} between the depressible element and {TAIL ~ the second force translation plate} when not collapsed, but collapse to allow the second force translation plate to contact and displace the depressible element when an occupant of the specified or higher weight sits on the seating surface 
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The hollow protuberances of the elastomeric mat produce { HEAD ~ a clearance } between the depressible element and { TAIL ~ the second force translation plate } when not collapsed , but collapse to allow the second force translation plate to contact and displace the depressible element when an occupant of the specified or higher weight sits on the seating surface
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH