1
Marion L Thompson: Energy absorbing barrier. Fulwider Patton Rieber Lee & Utecht, July 21, 1987: US04681302 (192 worldwide citation)

An energy absorbing barrier for dissipating kinetic energy upon impact by a moving vehicle. The barrier comprises walls defining a container closed except for a fill opening to admit water. Various configurations of side walls are disclosed. The side walls are resiliently deformable to return to the ...


2
Donald W Schmanski: Mobility guide tile for visually handicapped. Thorpe North & Western, December 29, 1987: US04715743 (132 worldwide citation)

A tile for positioning on walkways, crosswalks and other areas of pedestrian traffic for providing direction and warning to visually handicapped persons. The tile comprises a flat plate having a chamfered edge and including raised bumps coupled to a top surface of the plate and projecting upward the ...


3
David C Gertz, Owen S Denman: Shear action and compression energy absorber. Energy Absorption Systems, Hume Clement Brinks Willian & Olds, October 5, 1982: US04352484 (121 worldwide citation)

An energy absorbing apparatus is provided to dissipate the energy of the impact force of a vehicle. A plurality of energy absorbing sheets are arranged in a stacked relation to resist the impact force and to thereby dissipate the energy of the force. Each sheet has a honeycomb structure of hexagonal ...


4
Donald L Olson, Donald L Thomsen: Surface maintenance machine with rotary lip. Tennant Company, Kinzer Plyer Dorn & McEachran, November 25, 1986: US04624026 (104 worldwide citation)

A surface maintenance machine is disclosed including a body supported on a plurality of wheels and a power source for driving the wheels. The body carries a driven cylindrical brush and a powered rotary lip which cooperates with the brush to project dirt and debris into the hopper, each end of the r ...


5
Leo J Yodock: Stand-alone highway barrier. Rose Enterprises, Lerner David Littenberg Krumholz & Mentlik, June 23, 1992: US05123773 (96 worldwide citation)

Highway barriers are disclosed for either single or combined use, including a hollow container made of a semi-rigid plastic. The side walls of the container include vertical indentations in order to maintain the structural integrity of the container and to create inner baffles for dampening movement ...


6
David C Gertz, William G Krage: Vehicle crash barrier. Energy Absorption Systems, Willian Brinks Olds Hofer Gilson & Lione, June 11, 1991: US05022782 (91 worldwide citation)

A vehicle crash barrier for decelerating a vehicle that has left a roadway includes an elongated frame having a number of sections including a front section and at least one additional section arranged end to end along an axial direction. The frame is configured to collapse when axially struck on th ...


7
Barry D Stephens, Peter B Morehead: Restorable fender panel. Energy Absorption Systems, Willian Brinks Olds Hofer Gilson & Lione, June 5, 1984: US04452431 (90 worldwide citation)

A self-restoring fender panel for a reusable impact attenuation device is provided. Buffer elements are positioned in an ordered array extending forwardly of a rigid backing member adjacent to a fixed structure. Diaphragm members are interposed in the array and extend laterally outward of the array ...


8
Young Bruce O, Walker Grant W, Ford Duane B, Seegmiller Wan: Liquid shock absorbing buffer. Energy Absorption Systems, July 4, 1972: US3674115 (86 worldwide citation)

A reuseable impact attenuation construction designed to protect fixed objects near highways or vehicular traffic routes from damage due to high velocity impact. The invention comprises a plurality of collapsible, incompressible fluid filled energy absorbing and dissipating buffer elements separated ...


9
David C Gertz: Energy absorbing pneumatic crash cushion. Energy Absorption Systems, Willian Brinks Olds Hofer Gilson & Lione, June 23, 1987: US04674911 (82 worldwide citation)

A reusable energy absorbing apparatus comprising a plurality of air chambers and valve members. The air chambers and valves are constructed so that the valve members close upon the application of an axial force, thereby sealing air within the air chambers. After the energy absorbing apparatus has re ...


10
Kenneth E Walter: Radio frequency transponder method for identifying geographical locations such as survey traverse points. Floyd E Ivey, October 20, 1998: US05825298 (81 worldwide citation)

An identification system including a device for locating land and construction survey traverse control points, other survey sites or any location marking the position of a place or thing comprised of a read only or read/write radio frequency transponder enclosed within a durable watertight container ...



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