Securing edge protectors for concrete grade crossing panels havi

Railways: surface track – Roadbed – Street crossing

Patent

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Details

E01C 904

Patent

active

058136029

ABSTRACT:
In a system that extends a paved roadway across a pair of parallel, spaced apart rails using a gauge panel between the pair of rails and a pair of field panels between each rail and the roadway, edge protectors of the present invention are used to protect the edges of the panels. A seal is positioned between each rail and a longitudinal rail edge. In one embodiment, a longitudinal rail edge protector has a surface leg that is substantially even with the top surface of the panel and a securing leg that secures the seal to the panel either by being embedded in the seal or by covering or overlapping the seal. In an alternate embodiment, a longitudinal rail edge protector has a surface leg, a securing leg, and a securing extension that is embedded into the seal to secure the seal to the panel. In another alternate embodiment, the securing edge protector is flat and is embedded into the seal to secure the seal to the panel. Anchors may be used to attach the longitudinal rail edge protector to the panel. A longitudinal roadway edge may be protected by a longitudinal roadway edge protector that has a surface leg substantially even with the top surface of the panel. Each transverse edge of each panel may be protected by a transverse edge protector that has a surface leg substantially even with the top surface of the panel.

REFERENCES:
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patent: 3825184 (1974-07-01), Hartl
patent: 4236670 (1980-12-01), Limmergard et al.
patent: 4372488 (1983-02-01), Schonthaler et al.
patent: 4793545 (1988-12-01), Raymond
patent: 4899933 (1990-02-01), Martin
patent: 5181657 (1993-01-01), Davis
patent: 5535948 (1996-07-01), Williams
"American Quality: We Go Beyond What's Expected, American Concrete Grade Crossings", article, American Concrete, at least as early as Apr. 11, 1997, 1 page.
"American Concrete Grade Crossing Specifications", article, American Concrete Products Co., Omaha, NE, at least as early as Apr. 11, 1997, 1 page.
Dimension specifications information, Century Precast, Sulphur, LA, at least as early as Apr. 11, 1997, 1 page.
"Section Thru Crossing", drawing, Magnum Manufacturing Corporation, Pleasant Grove, Utah, at least as early as Apr. 11, 1997, 1 page.
"Technical Information on Precast Crossing Panels, Installation Instructions of Precast Crossing Panels", article, Magnum Manufacturing Corporation, Pleasant Grove, Utah, at least as early as Apr. 11, 1997, 1 page.

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