Side bearing unit for railroad car

Details Side bearing unit for railroad car Side bearing unit for railroad car

1990-03-05

1991-03-12

Halvosa, George E. A.

Spring devices

Vehicle

Railway

1051987, 248635, 2671411, 2671416, 267293, 267294, 280716, F16F 136, F16F 140

Patent

active

049989979

ABSTRACT:
A top cap and housing cooperate to create an internal void wherein is located two elastomeric springs, one on top of the other. Two different solid stop systems are incorporated into the top and housing. An interlocking system also movably secures the top cap and housing such that the two thermoplastic elastomeric springs can be subjected to a preload. The thermoplastic elastomeric springs are designed and housed so that through a cycle from free height to solid height they are folded and flexed rather than compressed.

REFERENCES:
patent: 1930098 (1933-10-01), Hossfeld
patent: 2605734 (1952-08-01), Watkins
patent: 2618393 (1952-11-01), Withall
patent: 2926973 (1960-03-01), Ellis
patent: 3140866 (1964-07-01), Zollner
patent: 3724833 (1973-04-01), Sergay
patent: 3735711 (1973-05-01), Hassenauer
patent: 3865443 (1975-02-01), James
patent: 4566678 (1986-01-01), Anderson
patent: 4712487 (1987-12-01), Carlson

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