Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7185882 | Box beam terminals Guardrail installation designs are described that incorporate a box beam rail as the structural rail member. The box beam rail member may have an open cross-section or a closed cross-section. An impact head is provided to bend and deflect the rail member during an e... | 03/06/2007 |
| 5503495 | Thrie-beam terminal with breakaway post cable release An end treatment for a thrie-beam type guardrail and a safety device specifically oriented toward trucks, vans and other utility vehicles having high profiles and centers of gravity. A slotted thrie-beam terminal is featured for use with highway guardrail... | 04/02/1996 |
| 5462258 | Road crash barrier comprising at least one horizontal wooden rail A road crash barrier including a wooden rail (1), which may be formed of horizontal rail elements (3) assembled end to end, supported by posts (2). The rail (1) is covered over a portion of its surface by elongate plane rectangular plates (5) of small sec... | 10/31/1995 |
| 5203543 | Guardrail support bracket A bracket for mounting a roadway guardrail to a post adjacent a roadway involves a generally rectangular backing member having an inwardly-extending flange extending along each of the upper and lower edges thereof. The bracket can be interposed between, p... | 04/20/1993 |
| 5195727 | Tubular shock-absorbing device for a rail A tubular shock-absorbing device including a post, a block having a curved surface for engagement with the post and having a waved surface, both ends of the block having reinforcing flanges which are cast into form integrally, a curb which has a waved sha... | 03/23/1993 |
| 5172891 | Safe road railing A safe road railing having a horizontal cushion tube provided with a plurality of petaloid elements curving outward to engage a fence plate and absorb shocks received by the plate.... | 12/22/1992 |
| 5169127 | Guard rail A guard rail has at least one horizontal rail composed of rail elements made of wood, and wooden posts coupled to the rail. Each post supports each of the two adjacent elements of the rail. Each element of the rail is provided with a metal connecting memb... | 12/08/1992 |
| 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 |
| 4946138 | Roundwood highway guardrails Road safety guardrails are constituted by vertical wooden posts carrying at least one horizontal rail made up of wooden logs which are connected end-to-end by pairs of metal straps which are interconnected by bolts, each passing through both straps and on... | 08/07/1990 |
| 4944494 | Fence structure A fence structure is provided for the containment of horses and the like, employing in combination with wooden vertical posts a plurality of vertically spaced and generally parallel disposed horizontal metal rails fixedly secured to the wooden posts by re... | 07/31/1990 |
| 4941633 | Rope support device A support device which is particularly adapted to join a length of rope to a structural member of a building, for example, has a body prepared for ready attachment to the structural member. Projecting outwardly from the body of the device is a set of spac... | 07/17/1990 |
| 4838523 | Energy absorbing guard rail terminal An improvement to an energy absorbing guard rail terminal for use on longitudinally extending roadways. The energy absorbing guard rail terminal having a number of overlapping horizontally extending parallel guard rails positioned on oppositely disposed s... | 06/13/1989 |
| 4819916 | System of replaceable road railing This invention, being an improvement on the kind of fixed road railing adopted widely now, provides a new system of replaceable road railing comprising mainly of an underground sleeve, into which a pillar is inserted, a pillar with blades at its bottom, a... | 04/11/1989 |
| 4739971 | Guard rail assembly A guard rail assembly for a highway. A sliding frame is mounted on each of a series of posts. The sliding frame slides transversely of the guard rail assembly. Elongated guard rail units span adjacent posts. Each guard rail unit includes an elongated supp... | 04/26/1988 |
| 4722513 | Crash barriers for roads and highways The invention relates to crash barriers for roads or highways comprising a horizontal guard rail supported by posts. The guard rail and the posts are made up of wooden poles. The rail elements are assembled end to end by means of two fish-plates which are... | 02/02/1988 |
| 4709887 | Highway cable clamp A clamp for supporting a plurality of horizontally spaced highway guard cables against a wooden post, such clamp comprising a plate member presenting a flat portion and a plurality of spaced apart recesses adapted to freely slidingly retain said plurality... | 12/01/1987 |
| 4638979 | Vehicle crash barriers A vehicle crash barrier is designed to provide a progressively increasing resistance to impact. In one embodiment a rail (12) is mounted on upright posts (10) by means of dual connecting elements (13,14) the rear elements (13) being of rectangular box sec... | 01/27/1987 |
| 4501411 | Guardrail for roadway A guardrail for roadway has a row of a plurality of steel posts secured in a row to the ground outside and along one side edge of a roadway, such as a shoulder of the roadway or a median strip between roadways. In the case where the posts are disposed alo... | 02/26/1985 |
| 4063713 | Guard rail A shock-absorbing unit comprising a post with upper and lower generally coparallel passages therethrough, e.g., bores, for the reception of individual push rods, the inboard ends of the push rods supporting a rail, an oriented elastomer, e.g., a copolyeth... | 12/20/1977 |
