Low profile derail

Details Low profile derail Low profile derail

2011-03-22

2011-03-22

Morano, S. Joseph (Department: 3617)

Railway switches and signals

Interlocking

Derails

C104S261000

Reexamination Certificate

active

07909293

ABSTRACT:
This invention relates to a derail assembly used in the railroad industry for derailing the wheel of an undesirably moving railed vehicle and, in particular, relates to derailing a moving locomotive having a pilot at the front of the locomotive. The derail assembly includes a full rigid derail plate which is in direct contact with the entire upper surface of the rail. An upright derail bar is securely mounted on the derail plate and the derail bar is angled outwardly for engaging a wheel of the locomotive when moving undesirably for causing a desired derailment. The derail includes longitudinally spaced rigid hooks at opposite ends of the derail. The hooks secure one side of the derail assembly to the rail. On the opposite side of the rail, a clamp assembly is provided on the derail shoe from the hooks. The hooks and the clamp cooperate to secure the derail assembly to the rail. The derail has an overall height which is less than three inches measured from the upper surface of the rail to the highest point of the derail assembly so a clearance is always provided between the pilot of the moving locomotive and the highest point of the derail assembly.

REFERENCES:
patent: 1464606 (1923-08-01), Hayes
patent: 1464607 (1923-08-01), Hayes
patent: 1627092 (1927-05-01), Hayes
patent: 2829246 (1958-04-01), Hayes
patent: 4165060 (1979-08-01), Meyer
patent: 6105906 (2000-08-01), Pease et al.
patent: 6178893 (2001-01-01), Pease
patent: 6202564 (2001-03-01), Hart et al.
patent: 7549611 (2009-06-01), Hertel
patent: 2008/0023592 (2008-01-01), Hertel
patent: 2010/0051757 (2010-03-01), Pease

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