Patent ID: 6952910

Claim:
A method for the manufacture of gas filled bodies comprising the steps of: a) readying of a prefabricated plastic tube ( 1 ) with two superimposed sheets being connected in a gas tight manner to each other along a first longitudinal edge ( 4 ), an upper sheet ( 2 ) and a lower sheet ( 3 ) of said two superimposed sheets welded together in a transverse direction along gas tight welded seams ( 5 a , 5 b ), said gas tight welded seams ( 5 a , 5 b ) being arranged in pairs ( 5 ) at a separation from each other to form inflatable pockets ( 7 ), said welded seams extending from said first longitudinal edge ( 4 ) to a point at a predetermined separation from an opposing second longitudinal edge (B), a perforation ( 9 ) being located in an intermediate space between said welded seams ( 5 a , 5 b ) of each pair ( 5 ) of said welded seams, each of said pockets ( 7 ) having at least a partial open section adjacent said second longitudinal edge ( 6 ) to form a gas filling opening ( 8 ); b) providing a gas filling device ( 25 ) for successive blowing a filling gas into each said pocket ( 7 ) through said gas filling opening ( 8 ), c) providing a welding device ( 13 ) for gas tight welding of said gas filling opening (B) of the filled pocket ( 7 ), and d) continuously moving said tube ( 1 ), said tube being continuously moved first past said gas filling device ( 25 ) here said filling gas is blown into each said successive pocket through said gas filling opening ( 8 ); holding together said upper and lower sheets by drive belts ( 26 , 27 ) to prevent the filling gas from escaping each said pocket; then continuously moving said tube past said welding device ( 28 ) where said gas filling opening ( 8 ) of each said successive pocket ( 7 ) is gas tight welded.