Device for producing paper from which a bag having a waterproof,

Details Device for producing paper from which a bag having a waterproof, Device for producing paper from which a bag having a waterproof,

1986-10-16

1988-05-17

Schmidt, Frederick R.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With cutting, punching, piercing, severing, or tearing

156552, 156256, 493217, 493345, 493933, B32B 3100, B31B 3902

Patent

active

047448563

ABSTRACT:
A device is disclosed herein which will apply strips of plastic to paper, such as kraft paper, transversely to the travel of such paper as it is fed from a roll. The resulting paper may then be formed into a bag by machinery commonly in use in the industry, without modification, with the resultant bag having a leakproof, waterproof bottom.

REFERENCES:
patent: 893759 (1908-07-01), Thomas
patent: 2257823 (1941-10-01), Stokes
patent: 3212697 (1965-10-01), Anderson
patent: 3259301 (1966-07-01), Onasch
patent: 3358903 (1967-12-01), De Stefano et al.
patent: 3540356 (1970-11-01), Lecomte
patent: 3927606 (1975-12-01), Brockmuller et al.
patent: 4196035 (1980-04-01), Reil
patent: 4353770 (1982-10-01), Kuckhermann
patent: 4549729 (1985-10-01), Hoffstetter et al.
patent: 4608115 (1986-08-01), Schroth et al.

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