Patent ID: 8186267

Claim:
A run flat compression system, comprising: a spool having a rotational axis; a first rigid member that is separated from the rotational axis of the spool in a radial direction of the spool and revolves around the rotational axis of the spool when the spool rotates; a belt that forms a closed loop and has an inner surface, which faces inside the closed loop, and an outer surface, which faces outside the closed loop and which opposes the inner surface, wherein, in an unwrapped state, the belt (1) extends towards the spool, (2) threads between the spool and the first rigid member such that the outer surface faces the first rigid member and the inner surface faces the spool, and (3) extends away from the spool, wherein, when the spool rotates, the inner surface of the belt contacts the spool and the first rigid member engages the outer surface of the belt to wrap the belt around the spool to decrease an effective length of the belt; a second rigid member, wherein, when the spool rotates, the outer surface of the belt contacts the second rigid member, and wherein the first rigid member moves relatively to the second rigid member when the first rigid member revolves around the rotational axis of the spool; a third rigid member, wherein the belt is threaded (1) under the second rigid member such that the outer surface contacts the second rigid member, (2) between the first rigid member and the spool such that the outer surface of the belt faces the first rigid member and the inner surface of the belt faces the spool, and (3) under the third rigid member such that the outer surface contacts the third rigid member, and wherein the spool is located between the second rigid member and the third rigid member along a threaded direction of the belt.