{HEAD ~ The hollow protuberances} of {TAIL ~ the elastomeric mat} produce a clearance between the depressible element and 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 
{ HEAD ~ The hollow protuberances } of { TAIL ~ the elastomeric mat } produce a clearance between the depressible element and 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
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH