Carton bottom breaker
US4135439A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 1977 |
| Grant date | Jan 23, 1979 |
| Priority date | — |
| Expiry date | May 5, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2120/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A carton bottom breaker for performing a prebreaking operation on the panels of a bottom closure structure of a coated paperboard carton mounted on a carton forming mandrel. A movable carrier member has a V-shaped breaker means fixed thereon which comprises a pair of outwardly sloping folder plates for operative engagement with the fold-over panels of the bottom closure of a carton. A spring biased V-shaped breaker plate member is movably mounted on the carrier member between the sloping folder plates in a plane transverse to the V-shape formed by the folder plates, and it is adapted to engage the fold-in panels of the bottom closure of a carton. A mandrel stop finger is carried by the V-shaped breaker plate member for abutment with the carton mandrel, in an off-center position, to prevent damage of the mandrel by engagement with the V-shaped breaker means and V-shaped breaker member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.