04938007 is referenced by 27 patents and cites 6 patents.

The invention is a method of protectively packaging one or more articles in a container utilizing a foam cushion as a protective medium for the article or articles within the container. The method comprises providing a foam cushion forming station wherein cushions are successively formed from plastic film material formed into bags which are moved vertically downwardly with a predetermined amount of a foamable composition deposited in the bags for thereafter substantially filling the bag as the composition foams. Open-topped containers with one or more articles present therein are successively moved in a predetermined pat of travel to and beneath the foam cushion forming station. A cushion from the foam cushion forming station is dropped into each container successively positioned therebeneath before the foamable composition in the cushion has completely formed, and with the leading lower end of each dropping cushion oriented to extend transversely of the path of travel of the container to facilitate laying the cushion over the article or articles present in the container. Finally, the containers are successively closed and sealed before the foamable composition forming the cushion in each container has completely formed.

Title
Apparatus and method for forming foam cushions for packaging purposes
Application Number
121223
Publication Number
4938007
Application Date
December 30, 1988
Publication Date
July 3, 1990
Inventor
Charles R Sperry
Springfield
VT, US
Agent
Bell Seltzer Park & Gibson
Assignee
Sealed Air Corporation
CT, US
IPC
B65B 61/20
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