Methods and systems for producing pressware
US11938699B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2021 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Dec 6, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2110/40
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A system for forming a pressware product from a web of a roll of material comprises a positive mold, a negative mold, a heating element, an actuator, a force sensor, and a control system. The positive mold forms a top surface of the pressware product. The negative mold forms a bottom surface of the pressware product. The heating element is coupled to the positive mold or the negative mold. The actuator shifts the positive mold or the negative mold to cut and form the pressware product in a single stroke. The force sensor detects the forming force applied by the actuator, and the control system directs the actuator to adjust the forming force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.