Patent ID: 7353842

Claim:
An air fitting with an integral check valve, said fitting comprising: a housing having an inlet and at least one outlet, a passage extending between the inlet and the at least one outlet, said passage adjacent the at least one outlet having: a first portion of a first diameter and a second portion of a second diameter larger than the first diameter to form a valve seat facing the at least one outlet, a valve member being disposed in the second portion, a spring biasing the valve member against the valve seat and a retainer holding the spring in the second portion, said second portion having a plurality of lands separated by channels extending along the length of the second portion with the lands defining a diameter substantially the same as a diameter of the valve member and the channels allowing passage of air to the at least one outlet when the valve member is forced off of the valve seat; wherein the second portion receives an insert to form the lands and channels and the retainer has inwardly-extending catch portions for engaging an annular groove on an outer surface of the housing adjacent the at least one outlet; and wherein the retainer has a hub portion connected by radially extending arm portions to an outer rim, a portion of the outer rim being divided into arcuate segments containing the inwardly-directed catch portions so that the catch portions can be expanded to shift over the end of the outlet portion and snap into the groove.