04999975 is referenced by 49 patents and cites 20 patents.

New and improved foam cushions for packaging purposes of the type including a cushion envelope partially filled with an expandable cushioning foam material are provided. The cushion envelope includes a foam-receiving cavity and is defined by a unitary web of material folded over itself to provide a folded side. An intermittent labyrinth side seam is provided along the side opposite the folded side and transverse top and bottom seams are provided to complete formation of the cushion envelope. A cushioning foam is disposed in the foam-receiving cavity. A method for making the foam cushions and an automated apparatus for making a continuous supply of the packaging cushions are also described.

Title
Apparatus and methods for dispensing foamable products
Application Number
7/345346
Publication Number
4999975
Application Date
April 28, 1989
Publication Date
March 19, 1991
Inventor
Dee E Willden
Port Washington
WI, US
Charles M Willden
Grafton
WI, US
Agent
Angelo J Bufalino
James T FitzGibbon
Assignee
Insta Foam Products
IL, US
IPC
B65B 55/20
B65B 23/00
B65B 9/06
B65B 9/08
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