The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2007
Filed:
Feb. 02, 2004
Jeffrey J. Stimler, Queensbury, NY (US);
David P. Zettel, Marietta, GA (US);
Said K. Farha, Lake Forest, IL (US);
Jeffrey J. Stimler, Queensbury, NY (US);
David P. Zettel, Marietta, GA (US);
Said K. Farha, Lake Forest, IL (US);
Pregis Innovative Packaging Inc., Deerfield, IL (US);
Abstract
A method and apparatus for making a densified skin polymer foam plank comprising providing a polymer foam having a plurality of cells and heating an outer surface of the foam at a heating station. The heating step collapses and melts the cells adjacent the outer surface to form the densified skin having a density greater than a density of the foam before the heating step. Additionally, the method and apparatus may further include extruding the polymer foam from an extruder.