Patent ID: 8128770
Filing Date: 2012-03-06
Classification: B29C,B31D,B65D,Y10T

Abstract:
1. An inflatable-cushion inflation and sealing device, comprising: an inflation assembly configured for inflating with a fluid a cushion cavity disposed between first and second layers of a film; and a sealing mechanism comprising a rotary sealing drum that comprises a periphery and a heat source affixed around substantially the entire periphery, the sealing mechanism configured for receiving overlapping portions of the first and second film layers adjacent the inflated cushion cavity, and directing the overlapping portions about the sealing drum to hold the overlapping portions against each other sufficiently tightly to keep the fluid from escaping from between the overlapping portions and to seal the overlapping portions to each other using the heat source over a heating portion of the sealing drum periphery to form a longitudinal seal configured to seal the fluid in the cushion cavity, wherein the heat source is configured to maintain a temperature around substantially the entire periphery that is sufficient to seal the overlapping portions to each other.