Food or edible material: processes – compositions – and products – Processes – Packaging or treatment of packaged product
Patent
1979-11-15
1981-10-13
Cuchlinski, Jr., William A.
Food or edible material: processes, compositions, and products
Processes
Packaging or treatment of packaged product
53408, 53433, 53434, 426129, 426418, B65B 3104
Patent
active
042948592
ABSTRACT:
A process for packaging units of food in which the food units are placed on a bottom film and slits made in the film. The film with the food units thereon is passed into an open chamber, the chamber closed, and a vacuum drawn on it followed by back-filling with a substantially oxygen-free gas. The film with the food units thereon and a top film over the units is then subjected to vacuum and the top and the bottom films sealed. Alternately the package may be back-filled with oxygen-free gas prior to being sealed about the food unit. The disclosure includes also the steps of partially sealing food units between top and bottom films in a first chamber, back-filling with a substantially oxygen-free gas, then vacuumizing in a second chamber, and fully sealing the packages in a second chamber, or alternately back-filling with the oxygen-free gas before fully sealing.
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Lundquist Burton R.
Macherione Thomas
Armour and Company
Barber Frank T.
Batz Carl C.
Cuchlinski Jr. William A.
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