In one aspect of the invention, the elastomeric insert is bonded, either adhesively or chemically, to the frame, and in {TAIL ~ another aspect} of the invention, {HEAD ~ the elastomeric insert} is mechanically secured to the frame 
in
In one aspect of the invention , the elastomeric insert is bonded , either adhesively or chemically , to the frame , and in { TAIL ~ another aspect } of the invention , { HEAD ~ the elastomeric insert } is mechanically secured to the frame
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH