초록 ▼

An annular closure ring and bolt assembly for securing a lid or cover in sealed relation with an open-head drum is provided in which an annular split closure ring is closed by tightening a bolt between a pair of laterally spaced lugs attached to opposite ends of the closure ring. Each lug includes a

An annular closure ring and bolt assembly for securing a lid or cover in sealed relation with an open-head drum is provided in which an annular split closure ring is closed by tightening a bolt between a pair of laterally spaced lugs attached to opposite ends of the closure ring. Each lug includes a hole to receive the bolt wherein at least one lug hole is unthreaded, and the bolt includes a shoulder or sleeve such that when the bolt is inserted into the unthreaded hole, the shoulder fits substantially flush with that unthreaded hole. The bolt engages either a threaded hole in one of the lugs or a jam nut to draw the lugs together and tighten the closure ring around the drum. The tight engagement between the unthreaded hole of the lug and the shoulder of the bolt thereby reduces movement of the bolt within the unthreaded hole to secure the connection of the ring around the open-head drum.

대표청구항 ▼

1. An improved closure ring assembly for securing a lid to an open-head drum comprising:a circular member made of a heavy gauge material, said circular member being split to form a first and second adjacent end; a fastening assembly including a bolt including a head member and a threaded cylindrical

1. An improved closure ring assembly for securing a lid to an open-head drum comprising:a circular member made of a heavy gauge material, said circular member being split to form a first and second adjacent end; a fastening assembly including a bolt including a head member and a threaded cylindrical member, and shoulder engaging said threaded cylindrical member, wherein said shoulder comprises a threaded sleeve detachably engaging threaded cylindrical member; a first lug extending outwardly from said first end of said circular member, said first lug including a first hole for receiving said threaded cylindrical member and said cylindrical shoulder such that a perimeter of said cylindrical shoulder is substantially flush with a perimeter of said first hole; and a second lug extending outwardly from said second end of said circular member, said second lug including a second hole for receiving said threaded cylindrical member.