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. 10, 2012
Filed:
Dec. 02, 2009
Patrick A. Leonhardt, Rocklin, CA (US);
Barry D. Stephens, Roseville, CA (US);
Michael J. Buehler, Roseville, CA (US);
Brent S. Sindorf, Roseville, CA (US);
Patrick A. Leonhardt, Rocklin, CA (US);
Barry D. Stephens, Roseville, CA (US);
Michael J. Buehler, Roseville, CA (US);
Brent S. Sindorf, Roseville, CA (US);
Energy Absorption Systems, Inc., Dallas, TX (US);
Abstract
A breakaway support post for a guardrail includes an upper post member and a lower post member. The upper and lower post members are overlapping and configured such that the upper and lower post members are non-rotatable relative to each other about an axis extending in an axial impact direction. In one embodiment, a tensile fastener extends in the axial impact direction and connects overlapping portions of the upper and lower post members. In another embodiment, a shear fastener extends transversely to the axial impact direction and is the only connection between the upper and lower post members. In another aspect, a guardrail assembly includes first and second rail sections, with a deforming member deforming the first rail section as it moves relative to the second rail section. Methods of using and assembling a guardrail assembly are also provided.