Patent ID: 6138658
Filing Date: 2000-10-31
Classification: B28D,Y10T

Abstract:
A concrete cutting saw chain comprising:an assembly of saw chain links including center links and side links having front and back openings cooperatively aligned, and rivets projected through aligned openings of a pair of side links and a center link to inter-connect pairs of side links with center links in alternating sequence to form a loop of saw chain;each rivet connection providing a pivotal axis around which a center link pivots relative to a pair of side links and defining adjacent interfacing surfaces on each center link and each side link having relative circular sliding movement and further defining a passageway between said interfacing surfaces extending into and surrounding the openings occupied by said rivets; andresilient members between said adjacent interfacing surfaces and surrounding the openings occupied by said rivets, said resilient members being compressed against the adjacent interfacing surfaces of the saw chain links to provide a circular seal that closes the passageway and prevents contaminants from entering said openings through said passageways.