Patent ID: 7931026

Claim:
An adjustable conduit coupling assembly comprising: an adjustment assembly operatively coupled to a conduit coupling and configured to permit adjustment of a position of the conduit coupling with respect to a user's face over a continuous range of positions, the adjustment assembly including (i) a coupling collar attached to and extending outwardly from an outer surface of the conduit coupling and providing clamping surfaces on opposing sides of the coupling collar, wherein the conduit coupling is selectively moveable in a first direction along a longitudinal axis of the conduit coupling, wherein movement of the conduit coupling causes the coupling collar to move along with the conduit coupling, and wherein at least part of each of the clamping surfaces is provided in a plane that is parallel to the first direction, and (ii) a clamping mechanism having at least two clamp arms, wherein the clamping mechanism is operable between a clamped position wherein each clamp arm contacts a respective and opposing clamping surface and in which the coupling collar is held in position and an open position wherein the coupling collar is moveable in the first direction, wherein the clamping mechanism further comprises a locking mechanism configured to retain the clamp arms in the clamped position and to release the clamp arms in the open position, and wherein the locking mechanism comprises a first lever in operational communication with at least one of the clamp arms, and a second opposing lever in operational communication with at least one of the clamp arms, wherein the first lever, the second lever, or both are operable to urge the clamp arms to the clamped position and release the clamp arms to the open position; and a coupling retention assembly configured to retain the adjustment assembly in a predetermined position with respect to the user's face.