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:
Feb. 26, 2013
Filed:
Feb. 07, 2011
Henry S. Chu, Idaho Falls, ID (US);
Benjamin R. Langhorst, Idaho Falls, ID (US);
Michael P. Bakas, Ammon, ID (US);
Gary L. Thinnes, Idaho Falls, ID (US);
Henry S. Chu, Idaho Falls, ID (US);
Benjamin R. Langhorst, Idaho Falls, ID (US);
Michael P. Bakas, Ammon, ID (US);
Gary L. Thinnes, Idaho Falls, ID (US);
The United States of America as represented by the Department of Energy, Washington, DC (US);
Abstract
The disclosure provides a shock absorbing layer comprised of one or more shock absorbing cells, where a shock absorbing cell is comprised of a cell interior volume containing a plurality of hydrogel particles and a free volume, and where the cell interior volume is surrounded by a containing layer. The containing layer has a permeability such that the hydrogel particles when swollen remain at least partially within the cell interior volume when subjected to a design shock pressure wave, allowing for force relaxation through hydrogel compression response. Additionally, the permeability allows for the flow of exuded free water, further dissipating wave energy. In an embodiment, a plurality of shock absorbing cells is combined with a penetration resistant material to mitigate the transmitted shock wave generated by an elastic precursor wave in the penetration resistant material.