Carton top sealer apparatus and method
US7392639B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2005 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Mar 19, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7166
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for forming a top seal on a carton being conveyed along a processing path on a form, fill and seal packaging machine using a top sealer including opposing sealing jaws is provided. The carton includes top fin panels configured for sealing to one another to form a top seal. The method includes actuating a first control valve to provide communication between a first pressurized fluid source and a first port of an actuator for moving the actuator toward a first position. The actuator is operatively connected to the sealing jaws to move the sealing jaws in a clamping direction while moving toward the first position. A second control valve is actuated to inhibit fluid escape from the actuator through a second port of the actuator to inhibit movement of the sealing jaws in the clamping direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.