Manufacturing container or tube from paper; or other manufacturi – Bending – Folding
Patent
1986-12-29
1989-01-03
Coan, James F.
Manufacturing container or tube from paper; or other manufacturi
Bending
Folding
52 3, 493458, B31F 100
Patent
active
047954159
ABSTRACT:
A method of installing a sheet of thermoplastic film on a greenhouse wherein the sheet of thermoplastic film has been folded over in a somewhat U-shaped fold and rolled into a roll, comprising placing the roll of thermoplastic film on the apex of the greenhouse roof, and unrolling the roll of thermoplastic film down each side of the greenhouse.
REFERENCES:
patent: 2006511 (1935-07-01), Parsons
patent: 2553923 (1951-05-01), Lambert
patent: 2666840 (1954-01-01), Poivier
patent: 2801018 (1957-07-01), Yount
patent: 4674999 (1987-06-01), Francis
Coan James F.
Ethyl Corporation
Overton J. Bradley
Weihrouch Steven P.
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