Method and apparatus for making capsules provided with filter
US11618205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2018 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Jan 19, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7174
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for making a capsule provided with a body containing a filtering element suitable for receiving a product for preparing a beverage, including: supplying a first film of thermoplastic material and a second film of filtering material to a forming mold according to a supplying direction, superimposing the second film on the first film, the forming mold including a lower half mold in which a plurality of cavities is obtained and an upper half mold provided with a plurality of stretching elements, one for each cavity, which are movable in one direction that is perpendicular to the supplying direction; pre-heating to a softening temperature the first film of thermoplastic material, by a pre-heating device arranged upstream of the forming mold; closing the forming mold bringing the lower half mold and the upper half mold towards one another until they clamp between one another the first film of thermoplastic material and the second film of filtering material; simultaneously forming in the cavities the bodies of the capsules and the respective filtering elements, using the stretching elements. An apparatus for making a capsule provided with a body containing a filtering element su…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.