Expansion ring assembly with removable drive mechanism

Details Expansion ring assembly with removable drive mechanism Expansion ring assembly with removable drive mechanism

2007-09-04

2007-09-04

Sandy, Robert J. (Department: 3677)

Buckles, buttons, clasps, etc.

Bale and package ties, hose clamps

With tighteners

C277S616000, C404S025000

Reexamination Certificate

active

11199829

ABSTRACT:
An expansion ring assembly for sealing a gasket within an opening in the wall of a structure, the assembly including a drive mechanism having a pair of block members each having a threaded bore, and a bolt having oppositely threaded ends respectively threaded within the bores. The block members are removably engaged with respective ends of the expansion ring. An oversleeve is disposed in overlapping relationship with the expansion ring ends, and the expansion ring ends and the oversleeve include cooperating ratcheting structures. Rotation of the bolt of the drive mechanism in a first direction causes the block members to move outwardly along the bolt to expand the expansion ring and concurrently sequentially engage the ratcheting structures of the expansion ring ends and the oversleeve.

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