Method and apparatus for making fluorocarbon film plastic bags u

Details Method and apparatus for making fluorocarbon film plastic bags u Method and apparatus for making fluorocarbon film plastic bags u

1986-11-06

1989-07-11

Albritton, C. L.

Electric heating

Metal heating

By arc

21912167, 21912182, 21912175, 21912184, B23K 2600

Patent

active

048474622

ABSTRACT:
Methods and apparatuses for manufacturing air and water tight bags of plastic films such as Teflon or other fluorocarbons including creation of an intimate contacting pair of such films. This film pair can be stored or used in accordance with the other aspects of the invention or otherwise, and has its own utility. A vacuum table holds the film pair while a laser beam under computer control simultaneously cuts and welds the film pair along the path of the laser beam to form the bags.

REFERENCES:
patent: 3981230 (1976-09-01), Lee
patent: 4029535 (1977-06-01), Cannon et al.
patent: 4069080 (1978-01-01), Osborne
patent: 4158762 (1979-06-01), Saunders
patent: 4160894 (1979-07-01), Stemmler et al.
patent: 4237363 (1980-12-01), Lemelson
patent: 4613742 (1986-09-01), Nelson et al.
patent: 4636609 (1987-01-01), Nakamata
patent: 4680442 (1987-07-01), Bauer et al.
W. M. Steen, Welding Design and Fabrication, Welding Research News, "Extra Power for Laser Welds from GTAW Arcs", Feb. '80, p. 32.

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