초록 ▼

A closure ring assembly for securing a cover in sealed relation over the open top of a storage drum container in which a split ring is closed by tightening a headed tie bolt between a pair of laterally spaced lugs fixed to the ring on opposite of the split therein; the bolt freely passing through on

A closure ring assembly for securing a cover in sealed relation over the open top of a storage drum container in which a split ring is closed by tightening a headed tie bolt between a pair of laterally spaced lugs fixed to the ring on opposite of the split therein; the bolt freely passing through one of the lugs and threadingly engaging the other so that upon tightening the bolt the ring is contracted with the one non-threaded lug having outwardly extending teeth for engaging the bolt head to lock the same in tightened position.

대표청구항 ▼

A closure assembly for securing a circular cover having an annular peripheral lip over an annular bead rim formed about the open end of a cylindrical storage drum, comprising: an annular split ring having a transverse contour operable to matingly overfit the annular peripheral lip of the drum cover,

A closure assembly for securing a circular cover having an annular peripheral lip over an annular bead rim formed about the open end of a cylindrical storage drum, comprising: an annular split ring having a transverse contour operable to matingly overfit the annular peripheral lip of the drum cover, a pair of laterally locking lugs extending outwardly from said ring on opposite sides of the split therein; each of said lugs comprising a generally cylindrical body portion having substantially parallel, lateral faces and a transverse opening therethrough; a headed tie-bolt having a threaded body portion adapted to be mounted through the openings of said lugs to extend therebetween, thread means associated with one of said lugs for connective engagement with said threaded body portion whereby tightening of said bolt serves to draw the lugs together and thereby contract said ring; and teeth means formed unitarially with the other of said lugs comprising surfaces arcuately extending at a slight angle to the lateral faces of said other of said lugs and surfaces transversely related and extending substantially perpendicularly to said lateral faces of said other of said lugs, said surfaces defining teeth edges at intersections thereof which project outwardly of at least one of said lateral faces of said other of said lugs for frictionally engaging the head of said bolt in a manner permitting threading advancement of said bolt in a tightening direction while substantially resisting dislodgement of said bolt from its tightened position.