Railroad brake pressure recording

Details Railroad brake pressure recording Railroad brake pressure recording

1990-02-28

1992-01-21

Chin, Gary

Boots, shoes, and leggings

340452, 246182R, B61L 300

Patent

active

050832743

ABSTRACT:
A railroad brake pressure recorder for use with both analogue and digital break pressure manifolds monitors the signal on its analogue air brake pressure input connector. If the signal on this input exceeds a predetermined frequency, inputs are processed as coming from an analogue manifold. If it is less than this frequency, the inputs are processed as coming from a digital manifold.

REFERENCES:
patent: 4236215 (1980-11-01), Callahan et al.
patent: 4553723 (1985-11-01), Nichols et al.
patent: 4582280 (1986-04-01), Nichols et al.
patent: 4755803 (1988-07-01), Shockley et al.
patent: 4906970 (1990-03-01), Momura

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