High-security fill cap for underground storage tanks

摘要: A high-security fill cap is adapted for releasable attachment to the open end of a pipe, connected an underground fuel storage tank or like. The comprises annular cap, plurality latches pivotally mounted on movement between latched positions engaging pipe and unlatched disengaging actuating mechanism, including handle, moving their in response reciprocal key lock secured centrally within handle selectively rotate cam plate thereof its locked unlocked beneath cap.