End wall closure for bulk material transport bag

Details End wall closure for bulk material transport bag End wall closure for bulk material transport bag

1981-06-29

1982-12-21

Price, William

Purses, wallets, and protective covers

Protective cover made of flaccid material

For a racquet

150 11, 222181, B65D 2902

Patent

active

043644244

ABSTRACT:
A flat reusable fill/discharge closure for the end wall (bottom or top) of a cloth bag for transporting bulk materials comprises a flexible tube folded back into itself to form a long inner fill/discharge tube and a short outer closure tube having a length less than the radius of an opening in the bag end wall; the tube fold is sewn into the periphery of the end wall opening of the bag with the closure and fill/discharge tubes projecting outwardly. A flat closure is effected by tying the fill/discharge tube closed, stuffing it into the bag interior, and then closing the closure tube by a drawstring mounted in its outer end.

REFERENCES:
patent: 3374929 (1968-03-01), Silfverskiold
patent: 3789897 (1974-02-01), Saito
patent: 3961655 (1976-06-01), Nattrass et al.
patent: 4010784 (1977-03-01), Nattrass
patent: 4143796 (1979-03-01), Williamson
patent: 4207937 (1980-06-01), Sandeman et al.
patent: 4211266 (1980-07-01), Massey
patent: 4221250 (1980-09-01), Manerba

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