The flexible members, in being attached to {HEAD ~ opposite sides} of the hinge, also tend to provide an opening force to {TAIL ~ the seal}, so that the seal will spring open if the stud is not securely engaged in the socket 
The flexible members , in being attached to { HEAD ~ opposite sides } of the hinge , also tend to provide an opening force to { TAIL ~ the seal } , so that the seal will spring open if the stud is not securely engaged in the socket
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH