Method of manufacturing an air cushion

Details Method of manufacturing an air cushion Method of manufacturing an air cushion

1997-06-16

1999-07-20

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

425536, 425532, B29C 4904, B29C 4960

Patent

active

059253061

ABSTRACT:
An air cushion having smooth exterior surfaces is produced by extruding a material film defined by upper and lower surfaces secured together by a plurality of spaced ribs. The film is clamped between a shaping mold and a needle having a plurality of air holes corresponding to cells defined by the ribs is inserted through the film and a fluid is blown into the cells to form the air cushion.

REFERENCES:
patent: 3372429 (1968-03-01), Kato
patent: 4722131 (1988-02-01), Huang

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