Assignee: Energy Absorption Systems, Inc.

Location: Chicago, IL
No. of patents: 57

Number	Title	Issue Date
7849617	Self-righting post and method for the assembly and use thereof A self-righting post assembly includes an elastomeric hinge tube and an elastomeric inner member is disposed in the hinge tube. In one embodiment, an extension post is disposed over the hinge tube. A sign panel can be secured to the extension post. In one embodiment...	12/14/2010
7484906	Crash cushion A vehicle crash cushion for decelerating a vehicle includes first, second and third bays. The first bay is positioned forwardly of the second bay and the second bay is positioned forwardly of the third bay. The first, second and third bays each have energy absorbing...	02/03/2009
7396184	Crash cushion A vehicle crash cushion for decelerating a vehicle includes front and rear anchors spaced along a longitudinal direction and at least one deformable attenuator member extending in the longitudinal direction and having a first end coupled to the front anchor and a se...	07/08/2008
7249910	Removable delineator post and method for the use thereof A delineator includes a post having a bottom portion and a stem extending from the bottom portion. At least a portion of the post is moveable in a lateral direction between an at-rest position and an impact position. An anchor includes a top and an elongated recepta...	07/31/2007
7090392	Roadway freezing point monitoring system and method Improved roadway freezing point monitoring systems and methods include improved sample wells for the accurate measurement of the freezing point of liquid on a roadway, the use of temperature sensors that require only two conductors to receive power and to send and r...	08/15/2006
7037029	Crash cushion with deflector skin A crash cushion including a side portion extending in a longitudinal direction and having an outer surface defined at least in part by a plurality of convex cambered portions. At least one deflector skin has an inner surface, an outer surface, a leading edge and a t...	05/02/2006
6955304	Anti-icing spray assembly An anti-icing spray assembly includes a base housing having a generally open top and a cavity. The base housing is adapted to be mounted in a roadway. A spray housing is removably secured to the base housing with at least a portion of the spray housing being dispose...	10/18/2005
6942263	Mount for truck mounted attenuator A truck mounted attenuator includes an interface structure comprising a pivot mount at a first location and a bearing surface at a second location vertically spaced from the first location. The pivot mount is adapted to be pivotally mounted to a pivotable truck comp...	09/13/2005
6905282	Vehicle mounted crash attenuator A vehicle mounted crash attenuator includes first and second bays mounted together at a rotational joint. One or more hydraulic cylinders are mounted between the bays to move the second bay between a deployed position, in which the first and second bays are aligned ...	06/14/2005
6863467	Crash cushion with deflector skin A crash cushion comprising a resilient cylinder having a substantially vertical longitudinal axis and an outer surface at least a portion of which is adapted to be exposed in or to a roadway. A deflector skin has a curved contour shaped to mate with the outer surfac...	03/08/2005
6695469	Roadway freezing point monitoring system and method Improved roadway freezing point monitoring systems and methods include improved sample wells for the accurate measurement of the freezing point of liquid on a roadway, the use of temperature sensors that require only two conductors to receive power and to...	02/24/2004
6623204	Vehicle impact attenuator A vehicle impact attenuator includes a rail and at least one guide member moveable along the rail. At least a portion of the guide member is rotatable relative to the rail about a vertical axis by at least &#b1;10° without binding the guide member agains...	09/23/2003
6579034	Highway crash attenuator frame A highway crash attenuator frame includes transverse elements that are interconnected by side elements. Each side element is disposed entirely on a respective side of a central longitudinal axis of the frame, and one or more tension elements are secured t...	06/17/2003
6554529	Energy-absorbing assembly for roadside impact attenuator An energy absorbing assembly for a roadside crash cushion includes a resilient, self-restoring tube and a compression element positioned inside the tube to brace the tube against compression along a compression axis while allowing compression of the tube ...	04/29/2003
6539175	Highway crash barrier monitoring system A highway crash barrier includes a collision sensor that detects when a vehicle collides with the crash barrier. A transmitter is coupled with the collision sensor to transmit a radio frequency signal to a remote location when this collision sensor detect...	03/25/2003
6481920	Highway crash cushion A highway crash cushion provides a system response profile that reduces the stopping distance of an impact event. This crash cushion includes a frame that forms at least two bays arranged one behind another in an anticipated impact direction. The frame in...	11/19/2002
6478506	Roadway pavement marker A roadway pavement marker includes a base that supports a flexible membrane. The membrane supports an anchor plate, and the anchor plate in turn supports a reflector housing. The reflector housing is releasably secured to the anchor plate by one or more m...	11/12/2002
6461076	Vehicle impact attenuator A vehicle impact attenuator includes an array of resilient, self-restoring tubes arranged along a longitudinal axis. This array includes two or more tubes per row. The tubes each include a respective compression element oriented at an acute angle with res...	10/08/2002
6427983	Self-restoring highway crash attenuator 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 ...	08/06/2002
6270020	Roadway deicing system A roadway deicing system uses a pressurized gas stored in a high pressure tank to dispense a solid or liquid deicer onto a roadway. An electrically powered controller responds to control inputs to control valves, such as solenoid valves, to cause the deic...	08/07/2001
6244637	Adjustable tailgate mount for truck mounted attenuator A truck mounted attenuator includes an adjustable tailgate mount having a frame, and a hanger adjustably mounted to the frame such that the hanger is movable to any of a plurality of vertical positions with respect to the frame to adjust the tailgate moun...	06/12/2001
6173943	Guardrail with slidable impact-receiving element A guardrail includes an array of vehicle-deflecting rails secured to an array of posts extending along a roadway. An impact-receiving element is slidably mounted to the forward end of the array of rails, and this impact-receiving element includes a vehicl...	01/16/2001
6142452	Highway barrier and guardrail A highway guardrail includes an elongated metal plate that forms at least one ridge. The plate includes weakened regions extending at least partially across the plate, and these weakened regions are oriented obliquely to the longitudinal direction to form...	11/07/2000
6092959	Method for decelerating a vehicle, highway crash cushion, and energy absorbing element therefor A highway crash cushion provides a system response profile that reduces the stopping distance of an impact event. This crash cushion includes a frame that forms at least two bays arranged one behind another in an anticipated impact direction. The frame in...	07/25/2000
6050742	Pavement marker A raised pavement marker includes a rigid reflector assembly that supports two retroreflectors. The reflector assembly is resiliently mounted over a base by a resilient membrane, which is secured to the base at its outer edge. When a vehicle contacts the ...	04/18/2000
5797591	Guardrail with improved ground anchor assembly A ground anchor assembly for a highway guardrail includes first and second spaced ground anchors and a connecting element interconnected between the anchors. An anchor cable included in the guardrail assembly is connected to the ground anchor assembly adj...	08/25/1998
5797592	Roadside energy absorbing barrier with improved fender panel fastener A roadside energy absorbing barrier includes energy absorbing elements interposed between diaphragms, with fender panels mounted by hinges to the diaphragms. The fender panels define longitudinally extending slots, and a fastener is mounted between adjace...	08/25/1998
5733062	Highway crash cushion and components thereof A highway crash cushion includes a single, central, rigid, guide rail that guides the crash cushion in axial collapse. Diaphragm assemblies are each provided with recessed legs, and a central guide that slides along the rail while locking against the rail...	03/31/1998
5642792	Highway crash cushion A support frame attaches a truck mounted attenuator to a backup vehicle. The support frame includes a rear section connected to a front section by a linkage which includes two spaced side frames. The side frames each include three hinges, with the interme...	07/01/1997
5577861	Crash attenuator with vehicle-deflecting member A crash attenuator for an exposed end of a concrete highway barrier includes a light weight array of sheet metal energy-absorbing elements interposed between diaphragms. The crash attenuator is cantilevered from one end of the barrier by a mounting arrang...	11/26/1996
5494371	Crash attenuator A crash attenuator for an exposed end of a concrete highway barrier includes a light weight array of sheet metal energy-absorbing elements interposed between diaphragms. The crash attenuator is cantilevered from one end of the barrier by a mounting arrang...	02/27/1996
5425594	Roadside barrier An energy absorbing roadside barrier includes an elongated container configured to receive and hold a volume of water. The container defines a pair of sidewalls having sufficient rigidity to stand alongside a roadway and sufficient resilience to deform up...	06/20/1995
5403113	Shear loading energy absorbing device An energy absorbing device for use alongside a roadway to decelerate an impacting vehicle includes first and second elements. The first element extends in an axial direction and includes a threaded portion that defines a multitude of projecting ridges. Th...	04/04/1995
5314261	Vehicle crash cushion A vehicle crash cushion is mounted to a wall adjacent to a roadway. The cushion includes an array of panels positioned to overlap one another and oriented parallel to the wall. A mechanical linkage couples the panels to the wall and suspends the panels ab...	05/24/1994
5248129	Energy absorbing roadside crash barrier An energy absorbing roadside crash barrier includes a scissors linkage having first and second ends. The scissors linkage is movable between an extended position and a collapsed position. A mounting element is coupled to the first end of the scissors link...	09/28/1993
5211503	Barrier gate for longitudinal highway barrier A barrier gate for a longitudinal highway barrier of the type having first and second axially aligned barrier segments separated by a gap includes two elongated gates. These gates are mounted by rails and wheels for axial movement between an opened positi...	05/18/1993
5199755	Vehicle impact attenuating device An impact attenuating device such as a truck mounted attenuator includes at least two cartridges, which are secured together by flanges and angled backing elements on adjacent portions of the upper and lower sheets of the cartridges. The forwardmost bay o...	04/06/1993
5192157	Vehicle crash barrier An energy-absorbing crash barrier is provided with multiple energy-absorbing elements. Each element includes an expanded metal sheet formed as a tubular column which is internally braced with foam. In some of the sections multiple metal columns are provid...	03/09/1993
5112028	Roadway impact attenuator A collapsible roadway impact attenuator includes an array of spaced parallel support elements arranged to move axially when the attenuator is struck by impacting vehicle. Elastomeric energy absorbing sheets are rigidly secured between adjacent support ele...	05/12/1992
5088874	Highway barrier transporter A transporter for a length of highway barriers includes a series of barrier transporting units, each having at least one pair of wheels positioned to straddle a length of highway barriers, at least one engaging device configured to engage one of the barri...	02/18/1992

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Assignee: Energy Absorption Systems, Inc.