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