Lettuce processing apparatus
US4168597A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1978 |
| Grant date | Sep 25, 1979 |
| Priority date | — |
| Expiry date | Feb 27, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S426/809
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A method and apparatus for harvesting and processing head lettuce wherein the lettuce is shredded immediately upon harvesting and before deterioration occurs. The shredded lettuce is retained in an insulated or refrigerated enclosure and then promptly transported to a mobile processing trailer where it is further cleaned and chilled and finally packaged for shipment. The practice of the method and apparatus permits the lettuce to be on its way to the consumer on the same day that it is harvested from the field. A method and apparatus for simultaneously chilling, washing and adding preservatives to the chilled lettuce in a continuous fashion. A mobile enclosure embodying the apparatus and adapted to perform the method wherein the lettuce is maintained at a reduced temperature throughout all stages of processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.