Patent Number: 6,254,466

Title: Abrading and polishing tumbler apparatus

Abstract: A tumbler apparatus for abrading and polishing small parts and rocks includes a cylindrical barrel with a closed end and an open end. The inner surface at the open end has a circular sealing edge. A sealing closure for the sealing the barrel at the open end includes a first and a second rigid disc. A resilient band, either an O-ring or a cylinder, is held between the discs. A translating mechanism draws the discs toward one another in a sealing mode, that compresses the band to bulge outwardly to sealingly engage the inner sealing surface of the barrel open end. In a releasing mode, the discs are moved apart, allowing the band to resume it original shape, thereby unsealing the barrel to facilitate removal of the closure for access to the barrel contents. A pressure relief valve at the center of the discs may be optionally provided.

Inventors: Mucciacciaro; Domenic (Pompano Beach, FL), Blum; Alvin S. (Fort Lauderdale, FL)

Assignee: Mucciacciaro; Domenic

International Classification: B24B 31/02 (20060101); B24B 31/00 (20060101); B24B 031/02 ()

Expiration Date: 07/03/2018