Patent ID: 6840977

Claim:
A coolant for an air bag inflator, comprising: a cylindrical coolant body having a uniform thickness defined by an outer diameter and an inner diameter thereof and adapted to be disposed in a housing of the inflator for at least one of cooling and purifying gas discharged from the inflator, said coolant being formed by compressing a first end of a molded product made of wire rods in an axial direction thereof, and compressing a second end, opposing the first end, of the molded product along the axial direction, such that an absolute value of a difference between a radial pressure loss of the axially upper half portion of said coolant closer to the first end and a radial pressure loss of the axially lower half portion of said coolant closer to the second end is adjusted to be 10 mmH 2 O or less at a flow rate of 250 liters/minute under the atmosphere of 20° C.