Method of preserving perishable products

Abstract

The method of packaging perishable products in a container and insuring preservation of the products while in the container, which method consists in permanently sealing the opening of the container after the product is packaged thereafter forcing an inert fluid to expel the air from the container through a port entry and exhaust, then sealing the port entry and exhaust while in the process of purging, thus trapping the inert fluid in the container.

Having described my invention, I now claim: 
     
       1. Those steps in the method of preserving a perishable product in a container .[.formed of impermeable material.]. having a product opening, an inlet tube for conveying a purging fluid to the container, and an outlet tube for withdrawing air from the container, the steps in the method comprising: (A) inserting the product into the container through the product opening;   (B) thereafter permanently sealing the product opening;   (C) thereafter purging the interior of the container by forcing an inert fluid into the container through said inlet tube and forcing air from the container through said outlet tube;   (D) placing the container in a carton having more stability than the container;   (E) extending the tubes to the exterior of the carton;   (F) thereafter, and while the container is still pressurized with inert fluid, permanently sealing the tubes closed.   
     
     
       2. The steps in the method as defined in claim 1, characterized in that the tubes are formed of plastic that, when cut with a hot scissor, is sealed closed; and further characterized in that the step of sealing the tubes closed is by severing the tubes with a hot scissor.