Patent ID: 8596511

Claim:
A pneumatic fastening tool comprising: a tool housing including a dispensing portion for dispensing a fastener; a handle portion; an inlet configured to receive input of compressed air; and a cap assembly comprising: a cap housing having an opening and a slot, the cap mounted to the tool housing; a deflector configured to direct exhausted air through an outlet in a first direction, the deflector having a stem received in the opening, the stem having a cylindrical body that defines a body axis and an outer diameter and defines a bore formed through the outer diameter of the cylindrical body, the bore extending in a second direction, the second direction being distinct from the first direction; a locking member extending at least partially in the bore and configured to rotatably capture the deflector relative to the cap housing wherein the slot aligns with the bore at only one rotational orientation of the deflector about the body axis; and an annular ring disposed around the stem and between the locking member and the cap housing, the annular ring configured to preclude contact between the locking member and the cap housing, wherein the locking member defines an elongated pin having a length that is accommodated between the outer diameter of the cylindrical body of the stem and an inner diameter of the cap housing during installation of the elongated pin into the bore.