Apparatus for filling edible products
US3945785A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1974 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Apr 22, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA21C11/166
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Methods and an apparatus for filling doughnuts or like edible products with a filling in which the product is extruded over and through a hollow, annular filling nozzle such that the product material flows closely past radially, outwardly directed discharge openings in the filling nozzle. The product material forms a solid annular ring where it is rejoined, and filling material is injected into the ring by applying positive pressure to the filling material in the filling nozzle. The filling flow is stopped by applying negative pressure from within the filling nozzle to draw the filling material back from the discharge openings of the nozzle. The negative pressure allows the product material to move toward the discharge openings, sealing the openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.