BAG OR SACK WITH SIDE FOLDS Russian patent published in 2001 - IPC

Abstract RU 2175630 C2

FIELD: packing facilities for loose materials. SUBSTANCE: two corner valves of triangular shape are formed by front and rear walls and adjacent halves of side fold at both sides of inner edge of fold. Valve are made for bending outwards and connecting to rear and front walls. EFFECT: provision of simple and reliable secondary closing of filler hole after taking out part of material from bag. 14 cl, 9 dwg

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RU 2 175 630 C2

Authors

Ljajmkjuler Val'Ter

Dates

2001-11-10Published

1998-09-03Filed