主权项 |
1. An apparatus comprising:
a plurality of blocks of foam configured to substantially fill an inside of a tire, each of the blocks of foam having:
a generally wedge shape having sides that are configured to be positioned at least partially against sidewalls of the tire or configured to be positioned against other said blocks, in which the sides configured to be positioned at least partially against sidewalls of the tire have an apex portion having a linear surface joined with a lower portion having another linear surface disposed at different angles, one to another; anda rigidity that is sufficient to operate the tire without air pressure. |