| 摘要 |
PURPOSE: To keep the internal pressure of a container from which the beverage is partially taken out, and to prevent the deterioration of the quality of the beverage by combining a manual pump with a seal cap for increasing the pressure inside of the container, and sealing a discharge port of a check valve of the pump by an elastic matching member. CONSTITUTION: A pump 18 formed by a combination unit 10 of a seal cap/pump is inserted into a neck of a container after a part of the carbonated beverage is taken out from the container, and an opening of the neck is sealed by turning the seal cap 16. The air is sent into a compression chamber 54 through an air passage 68 from an annular part 50 by the up-stroke of a piston 36. An annular seal 56 in the floated condition by the down-stroke effectively seals the compression chamber 54, the air previously sucked in the compression chamber is pushed out from a discharge port 88 of a check valve 20, and the high pressure condition is generated inside of the container. The disc 86 of an elastic membrane seals the discharge port 88 of the check valve 20, so that the pressure in the container is maintained, and the loss of carbonic acid can be prevented. |
