Patent ID: 6643933
Filing Date: 2003-11-11
Classification: B27B,Y10T

Abstract:
A guide bar for a chain saw comprising:an elongate planar bar defining a length and having opposed exterior flat sides and a peripheral guide edge, and a rear region of the bar that mounts onto the chain saw; an elongate channel between the sides and extending lengthwise along the bar length and a series of spaced apart dispersal holes extended laterally from the elongate channel to one of said sides; at least two inlet holes in the rear region of the bar and both connected to said channel, said inlet holes adapted for connection to a reservoir conduit whereby upon connection of said conduit to one of said inlet holes, liquid treatment from said reservoir conduit is directed into said channel for dispersal through said dispersal holes, the other of said inlet holes requiring closure to prevent outflow there through of said liquid treatment; a closure for each of said holes comprising: said inlet holes each defining an outer side exposed to the bar exterior for connection to said reservoir conduit and defining an inner side having a surrounding inner edge, a closure member movable between engaging and non-engaging positions relative to said surrounding inner edge whereby internal pressure produced by treatment flow into the channel from another inlet hole urges the closure member into sealing engagement with said inner edge of said inlet hole.