Patent ID: 6976299

Claim:
A guide bar, comprising: an elongate bar having inner and outer ends and opposed first and second sides; a channel provided in at least one of the opposed sides and extending substantially along the length thereof; a conduit seated in the channel, the conduit having an inner and outer end, the conduit having opposing inlets, the opposing in lets defining passageways into the conduit at a point at or near the inner end, the opposing inlets adapted to receive a treatment material from a source, such that the treatment material is directed into the conduit; and a check valve positioned in the conduit between the opposing inlets, the check valve movable from a first position to a second position, the check valve being responsive to the inflow of the treatment material through one of the opposing inlets whereby one of the opposing inlets is open, to allow treatment material into the conduit, and the other opposing inlet is closed to prevent outflow through the closed inlet.