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:
Dec. 01, 2015
Filed:
Oct. 15, 2013
Applicant:
Energy Absorption Systems, Inc., Dallas, TX (US);
Inventors:
Patrick A. Leonhardt, Rocklin, CA (US);
Brian E. Smith, Dallas, TX (US);
Assignee:
Energy Absorption Systems, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01F 15/04 (2006.01);
U.S. Cl.
CPC ...
E01F 15/0423 (2013.01); E01F 15/0461 (2013.01);
Abstract
A guardrail system includes a guardrail, a support post, and a fastener joining the guardrail and the support post. The support post includes a hole receiving the fastener, a fastener retention mechanism, and a slot for the movement of the fastener during an impact. The fastener retention mechanism retains the fastener in the hole until a predetermined level of force is attained during an impact, after which the fastener is released and moves into the slot. Methods of moving the guardrail relative to the post are also provided.