Rail heating apparatus

Details Rail heating apparatus Rail heating apparatus

1987-11-06

1991-04-02

Focarino, Margaret A.

Railway switches and signals

Switches

Snow protected

104279, 105451, 1262711, E01B 724

Patent

active

050041908

ABSTRACT:
A rail heating system is provided for heating railroad components such as railroad switch areas and electrified third rails. The heating system includes a side heater having a heating pad that has a flexible contact surface. A clip arrangement such as a spring steel clip is provided for securing the heating pads to the stock rail and pressing the contact surface into engagement with the rail. The contact surface of the heating pad is forced to conform to the shape of the contacted portion of the rail. Ground pan heaters may be used to keep areas of the switch that are not suitable for attachment by the side heaters, such as the switch rod, free from ice and snow.

REFERENCES:
patent: RE31081 (1982-11-01), Keep, Jr.
patent: 1477982 (1923-12-01), Shriver
patent: 1524223 (1925-01-01), Wells
patent: 1959107 (1934-05-01), Packer
patent: 2500399 (1950-03-01), Broome
patent: 3243573 (1966-03-01), Weisse et al.
patent: 3349722 (1967-10-01), Davis
patent: 3394251 (1968-07-01), King et al.
patent: 4334148 (1982-06-01), Kampe
patent: 4391425 (1983-07-01), Keep, Jr.
patent: 4429845 (1984-02-01), Stover et al.
"Installation and Maintenance Instructions for Raychem CRH-4 Third Rail Heaters", Jan. 13, 1987, pp. 8-12.

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