Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1978-01-16
1979-09-25
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156147, 156292, 156494, 156497, 156498, B32B 3100
Patent
active
041690028
ABSTRACT:
An improved method for forming a strip material and subsequently inflating and sealing the strip material at the site of its intended use to form cushioning material. Two heat sealable films are fused together in discrete areas to form two rows of inflatable chambers along the strip and a passageway extending the length of the strip material between the rows, with each of the chambers having an inlet opening narrower than the main portion of the chamber communicating with the passageway. The strip material is shipped uninflated to the site where the cushioning material is to be used. The strip material is then inflated by propelling the passageway in the strip over an air nozzle to inflate the chambers through their inlet openings, and the inlet openings are then sealed after the films are first pressed together and tensioned around the area to be sealed to both insure a wrinkle free seal and insure that air pressure in the chamber will not rupture the sealed area while it is hot.
REFERENCES:
patent: 2470990 (1949-05-01), Kennedy
patent: 2575764 (1951-11-01), Morver
patent: 3660189 (1972-05-01), Troy
patent: 3865667 (1975-02-01), Ferrari
patent: 3868285 (1975-02-01), Troy
patent: 3938298 (1976-02-01), Luhman et al.
Alexander Cruzan
Huebsch William L.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Weston Caleb
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