Dust-free sealer for valve bags

Details Dust-free sealer for valve bags Dust-free sealer for valve bags

2007-01-23

2007-01-23

Ahmad, Nasser (Department: 1772)

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

C428S041700, C428S041900, C428S043000, C428S192000, C428S194000, C428S200000, C428S201000, C428S202000

Reexamination Certificate

active

10360165

ABSTRACT:
The invention provides for a sealing device for a valve bag. The sealing device has two sections separated by a perforated seam. Each section is secured to one side of the valve channel and has an adhesive surface covered by a protective sheet. The two sections are perforated by the filling tube when the valve bag is filled, once the valve bag is filled the protective sheet is cleaned and removed and the two sections of the sealing device are pressed together and secured by the interaction of their adhesive surfaces.

REFERENCES:
patent: 3869333 (1975-03-01), McMaster
patent: 4003188 (1977-01-01), Lau
patent: 4073429 (1978-02-01), Lawes
patent: 4688370 (1987-08-01), Gighton et al.
patent: 5620542 (1997-04-01), Avila et al.
patent: 6092930 (2000-07-01), Kelly et al.
patent: 6126316 (2000-10-01), Bannister
patent: 6164823 (2000-12-01), Donnell
patent: 6649239 (2003-11-01), Donahue

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