Package making – With contents treating – Vacuum or inert atmosphere
Patent
1993-10-20
1995-03-14
Coan, James F.
Package making
With contents treating
Vacuum or inert atmosphere
53 88, 53405, B65B 3104
Patent
active
053967518
ABSTRACT:
A vacuum ejector includes an air ejector connected to a vacuum pump by a tube and controlled by a control switch to withdraw air from a food container. The air ejector includes a cap for covering the food container, a plug fastened to the cap by a screw joint, a valve received within a top recess on the cap and coupled to the plug to control the air passage between the food container and the vacuum pump, and a connector detachably connected between the plug and the tube being connected to the vacuum pump. The vacuum effect can be achieved quickly and conveniently for keeping the food fresh or for other vacuum treatment.
REFERENCES:
patent: 30440 (1860-10-01), Wildey
patent: 203796 (1878-05-01), Trezise
patent: 220641 (1879-10-01), Murphin
patent: 2157624 (1939-05-01), Overmyer
patent: 2890810 (1959-06-01), Rohling
patent: 3452510 (1969-07-01), Fry
patent: 3672114 (1972-06-01), Sacks
patent: 5121590 (1992-06-01), Scanlan
patent: 5338166 (1994-08-01), Schultz
Coan James F.
Sunfa Plastic Co., Ltd.
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