{HEAD ~ The hollow protuberances} of the elastomeric mat produce {TAIL ~ 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 
produce
{ HEAD ~ The hollow protuberances } of the elastomeric mat produce { TAIL ~ 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
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