Apparatus for curling shells for beverage containers
US6349584B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2000 |
| Grant date | Feb 26, 2002 |
| Priority date | — |
| Expiry date | May 17, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D51/44
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An improved curling apparatus for curling the outer peripheries of container shells includes a plurality of inner rings vertically stacked and a plurality of outer ring-segments vertically stacked. Each of the inner rings have an outer surface and a groove in the outer surface which extends the entire periphery of the inner ring. Each of the outer ring-segments has an inner surface and a groove in the inner surface which extends the length of the outer ring-segment. The outer ring-segments partially encircle the inner rings with the inner ring grooves facing the outer ring-segment grooves. Each of outer ring-segments preferably has a unitary length extending about 240 degrees and an eccentric groove. The curling apparatus also includes a plurality of adjustment devices adapted to selectively move the outer ring segments relative to the inner rings to adjust a distance between the inner ring groove and the outer ring-segment groove at a desired location along the outer ring-segment groove. Each outer ring-segment has one of the adjustment devices associated therewith. Each adjustment device includes a pair of a cam members located on opposite sides of the outer ring-segment. Each ca…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.