Patent ID: 8820376
Filing Date: 2014-09-02
Classification: B60C,Y10T

Abstract:
1. A self-inflating tire assembly comprising: a rim having a tire mounting surface; a tire mounted to the rim tire mounting surface, the tire having an internal cavity, a pump device mounted to the rim, the pump device having a first end and a second end, the first end being mounted within the tire cavity and the second end located outside the rim and in fluid communication with the outside air; the first end of the pump device further comprising a flexible member having an outer rim and an inner rim, wherein the outer rim is connected to a backing plate and an inner rim is connected to a piston, wherein the piston is slidably mounted within a chamber of the backing plate, wherein the piston has an inner passageway for fluid communication with the tire cavity and the chamber, and the second end of the pump device has an internal bore in fluid communication with the outside air and the chamber, wherein the second end of the pump device further comprises a check valve mounted within the internal bore.