Patent ID: 6035769
Filing Date: 2000-03-14
Classification: A47J,B65B,B65D,Y10S

Abstract:
A vacuum sealed preservation container comprising a container main body and a lid made of a synthetic resin which is heat resistant and cold resistant and has microwave permeability, wherein:the lid has on the upper surface thereof a check valve formed with a heat resistant and cold resistant rubber or rubbery elastomer constituted such that gases in the container flow out only in one direction to the outside of the container through a vent hole, and a packing case disposed in contiguous with the circumferential edge thereof;a packing made of a heat resistant and cold resistant rubber or rubbery elastomer is mounted in the packing case;the check valve is inserted into an opening freely movably, prevented from detaching by a stopper ring from the opening and covers to close the vent hole;the container is constituted such that the lid and the container main body are in airtight contact with each other by way of the packing;the lid is pressed to discharge a portion of gases in the inside through the vent hole below the check valve to the outside thereby reducing the pressure in the inside of the container and the check valve instantly closes the vent hole upon stopping the pressing; andan external air is caused to enter by raising a knob of the check valve when sealing is released.