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:
Aug. 06, 2002
Filed:
Oct. 12, 2000
Applicant:
Inventors:
Patrick A. Leonhardt, Rocklin, CA (US);
James B. Welch, Placerville, CA (US);
Assignee:
Energy Absorption Systems, Inc., Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01K 3/00 ;
U.S. Cl.
CPC ...
A01K 3/00 ;
Abstract
A highway crash attenuator includes an array of resilient self-restoring polymeric tubes. Adjacent tubes are secured together by threaded fasteners, and the tubes of the rear row of the array are secured to a rigid object by threaded fasteners. The tubes form a rectangular array, without cables, frameworks or panels between the exterior surfaces of the array and oncoming traffic. The tubes of the front row of the array are provided with a greater wall thickness than the remaining tubes of the array to increase the mass and stiffness of the front of the array.