Patent ID: 6712334
Filing Date: 2004-03-30
Classification: A45C,B65B,F16K

Abstract:
An exhaust valve for a bag comprising;a valve body provided with an exhaust opening portion at a center of a lower part thereof to be communicated with a bag, a movable lid provided with an air intake going through from an upper surface to a lower surface thereof; said movable lid being mounted on the valve body movably toward and away from the valve body, a valve plate for opening and closing the exhaust opening portion, spring means for pressing the valve plate to the closed position to fit the exhaust opening portion closely, and a valve plate operating mechanism for opening the valve plate by moving the valve plate toward the open position against a spring force of the spring means; said valve plate, spring means and valve plate operating mechanism being arranged in a chamber formed between the opposite surfaces of the movable lid and the valve body, wherein the valve plate operating mechanism is operated by pressing the movable lid down so as to open the valve plate whereby the air in the bag may be exhausted from the air intake.