Reusable cartridge piston
US11541416B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2019 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Aug 13, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C17/00583
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A reusable cartridge piston for use with film bag cartridges comprises a piston base, an intermediate portion and a piston head. An extension axis extends from the piston base through the intermediate portion and through the piston head. The piston also includes a lip sections extending radially outwardly with respect to the extension axis from a sidewall of the piston head, the piston base and the piston head being spaced apart from one another by the intermediate portion, with a gap between the piston base and the lip sections. The lip sections are respectively spaced apart from one another by slits formed between two neighboring lip sections, with the slits extending in a radial direction with respect to the extension axis of the piston. The piston base, the intermediate portion, the piston head and the lip sections are formed as one piece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.