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:
May. 05, 1998
Filed:
Oct. 16, 1996
James Robert McFadden, Oxford, MI (US);
Joseph Paul Greene, West Bloomfield, MI (US);
Michael James Bland, Oxford, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
An energy absorbing device includes an energy absorber element having a plurality of elongated hollow hexagonal cells. The cells are arranged in a block shape with first and second layers interconnected by an intermediate plate. The intermediate plate closes adjacent ends of the first and second layers and forms three-sided pyramidal structures which project into each individual cell of the first and second layers. Each pyramidal structure has an apex located near the center of each cell. The energy absorber element is deformable under impact loading conditions to absorb and dissipate energy. Upon the removal of the impact load the energy absorber element returns to its original shape.