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:
Jul. 16, 2013
Filed:
Jun. 26, 2009
Nicholas DE Luca, Washington, DC (US);
Andrew B. Perkins, Berkeley, CA (US);
Shane L. Washburn, Oakland, CA (US);
Joseph D. Gangel, Livermore, CA (US);
Nicholas De Luca, Washington, DC (US);
Andrew B. Perkins, Berkeley, CA (US);
Shane L. Washburn, Oakland, CA (US);
Joseph D. Gangel, Livermore, CA (US);
Cryovac, Inc., Duncan, SC (US);
Abstract
A mechanically expandable foam sheet has comprising a plurality of discrete slits therein that allow the foam sheet to be expanded from an unexpanded foam sheet configuration to an expanded foam sheet configuration. The expandable foam sheet has a density of from 14 g/liter to 48 g/liter in the unexpanded configuration and a thickness of from 6 mm to 50 mm. The slits are of a kind and of a size and arrangement that the expanded foam sheet locks into the expanded configuration by exhibiting a pressure-to-close of at least 5 gm/cm. Each of the slits provides only a single free volume in the expanded foam sheet. An expandable foam sheet having serpentine-shaped expansion and locking arms is also disclosed, as are various cushioning articles comprising expanded foam sheet.