Abstract: An impact attenuating guardrail including a rail extending longitudinally along a roadway, a plurality of fixed support posts spaced behind the rail, and resilient compressible energy absorbing means mounted between the rail and the posts.

Abstract: A sacrificial inertial barrier and an array thereof particularly useful on race circuits. The frangible barrier includes a thin walled plastic tub containing an energy absorbing dispersible mass such as water or sand, the tub being supported on a thin-walled plastic ring which elevates the dispersible mass to a height at which its CG is the same as the CG of a particular type racecar, e.g. a Formula I car.

Abstract: A driver safety capsule or cell for a race car, the cell encapsulating and protecting the entire body of the driver. After a collision, the capsule and the driver immobilized therein are removable together from the car so that further head or spinal injury is avoided. Inertial tethers restrain movement of the driver's head and shoulders out of the capsule. A chest plate transforms impact forces to the capsule, minimizing injury to the chest.

Abstract: Displaceable highway safety barriers extending along the side of a roadway or forming a median strip between opposing roadway sections, the barriers including a number of skid assemblies resting, without attachment, on a supporting surface adjacent a roadway connected by a plurality of semi-rigid, vehicle/barrier interface members extending longitudinally of the roadway.

Abstract: A fireplace stove that is quickly and easily installed in a conventional fireplace with little or no modification of the fireplace or chimney comprises a firebox that is shaped and dimensioned to be at least partly received in a fireplace but with clearance between it and at least some of the walls of the fireplace to facilitate heat transfer by convection. A flue leading from the top of the firebox extends a short distance up into the chimney flue. Oxygen to support combustion in the firebox is supplied by a duct that leads from the chimney flue into the firebox, the inlet opening to the duct being located some distance below the outlet from the stove flue.

Abstract: Highway safety devices comprising an array of energy absorbing barrier units each preferably comprising a dispersible mass, effective, when struck by a vehicle, to bring the vehicle to rest at a rate of deceleration tolerable to the vehicle occupants without imposing an overturning or lifting moment on the vehicle.