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:
Apr. 27, 2004
Filed:
May. 19, 2000
Richard D. Angley, Aston, PA (US);
Michael S. Ciesielski, Broomall, PA (US);
Christopher T. Dial, Lansdowne, PA (US);
Peter T. Mahal, Ardmore, PA (US);
Robert F. Cook, Chipley, FL (US);
Engineered Arresting Systems Corporation, Aston, PA (US);
Abstract
Vehicle arresting beds, for installation at the ends of aircraft runways, are effective to safely decelerate aircraft entering the bed. The arresting bed is assembled of a large number of blocks of cellular concrete having predetermined compressive gradient strength, so that aircraft landing gear is subjected to drag forces effective to slow a variety of types of aircraft, while providing deceleration within a safe range of values. An arresting bed typically includes an entry region of a depth increasing from 9 to 24 inches formed of blocks having a first compressive gradient strength. A second region, which may be tapered into the first region and increase in depth to 30 inches, is formed of blocks having a greater compressive gradient strength. An aircraft thus experiences increasing drag forces while it travels through the bed, to provide an arresting capability suitable for a variety of aircraft. Arresting bed systems may include composite blocks including portions of cellular concrete of different strengths, reinforced blocks including a lower layer or grid of higher strength material, and cellular concrete block edge members surrounding a bed of aggregate or poured in place cellular concrete.