Patent attributes
A pipeline filter assembly comprising a base assembly, an outer wall, and a lid assembly. The base plate has a pocket to hold a tool for opening and closing a drain plug. The outer wall has a lower end portion and an upper end portion, wherein the upper end portion comprises a lower collar, and the lower collar comprises threading around an exterior surface thereof. The lid assembly is configured to couple to the lower collar of the outer wall. The lid assembly has an upper collar configured to mate with the lower collar. The upper collar has at least one housing that is coupled to the upper collar, and at least one biasing clip pivotally mounted within the housing for releasable engagement with the lower collar.