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US 6,712,334 B2Granted
Exhaust valve for a bag
AssigneeTaiyo Kagaku Co., Ltd.
InventorsHiroshi Motonaka, Yoshio Shiozaki
Life of this patent
Estimating the term…
Abstract
A movable lid is mounted to a valve body movably in an up-and down direction toward and away from the valve body whereby the valve body is lowered to be open against force of a spring by pressing a suction nozzle of an electric vacuum cleaner onto the movable lid and at the same time an exhaust of a bag may be carried out. After the exhaust, by moving the suction nozzle away from the movable lid, the movable lid may be moved upwards to place its original position the restoring force of the spring, so that the valve body may be opened.
Claims18
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.
4 more elements
Dependencies are inferred from the claim text.