Patent ID: 9199518
Filing Date: 2015-12-01
Classification: B23P,B60C,B60S,F04B,Y10T

Abstract:
1. A method of assembling an air pump for a tire, comprising: (A) opening an axial air passageway of an elongate flexible air tube at one end; (B) inserting at least one one-way check valve into the air passageway from the one end, the at least one check valve having an external nominal width greater than a nominal width of the air tube passageway; (C) establishing a press fit engagement between the at least one check valve device and air tube internal sidewalls defining the air passageway to place the at least one check valve at a preferred position within the air passageway; (D) retaining the at least one check valve in the preferred position within the air passageway by radial pressure from the air tube internal sidewalls and (E) closing the one end of the flexible air tube; repeating steps (B) (C) and (D) for each of a plurality of one-way check valves prior to closing the one end, the plurality of check valves being inserted sequentially to form a spaced apart array of check valves axially spaced apart along the air passageway, with each of the check valves residing at a respective preferred position within the air passageway.