Fluent material handling – with receiver or receiver coacting mea – Evacuation apparatus
Patent
1995-02-24
1996-10-15
Jacyna, J. Casimer
Fluent material handling, with receiver or receiver coacting mea
Evacuation apparatus
215228, 215270, 215311, 22020311, 22020302, 220231, B65D 5100
Patent
active
055644805
ABSTRACT:
A vacuum canister comprises a container and a lid which is provided with a large slot having centrally in the bottom thereof a retaining hole provided peripherally with ventilation holes. A soft disk member is provided such that a retaining column of the disk member is held in the retaining hole of the large slot of the lid, and that a disk portion of the disk member is located on the ventilation holes. The lid is further provided with a suction unit comprising a lever and a suction block. The lever is fastened pivotally at one end thereof to the lid and is provided on another end thereof with a hand grip. The suction block is fastened pivotally to the midsegment of the lever and is provided with a rod and a piston. The rod is pivoted to the lever while the piston is disposed slidably in the large slot of the lid. The piston is provided peripherally with a circular groove in which a sealing ring is received. The vacuum is created in the container by the suction block which is actuated by the motion of the lever.
REFERENCES:
patent: 3313444 (1967-04-01), Katell
patent: 3414160 (1968-12-01), Weber
patent: 3570704 (1971-03-01), Roson
patent: 3800972 (1974-04-01), Raymond
patent: 5251770 (1993-10-01), Bartley et al.
patent: 5405038 (1995-04-01), Chuang
patent: 5406992 (1995-04-01), Miramon
patent: 5449079 (1995-09-01), Yang
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