Locomotive lubrication level monitor

Details Locomotive lubrication level monitor Locomotive lubrication level monitor

1989-01-19

1990-08-14

Crosland, Donnie L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340450, 340612, 340618, 184108, 200190, 73303, B60Q 100

Patent

active

049490702

ABSTRACT:
A lubricant level monitor for gear covers of locomotives uses a vacuum probe tube to determine if the lubricant is below a predetermined level. The vacuum is only activated if the locomotive has been at rest for a predetermined period of time, so that the lubricant has time to settle. The monitor employs a minimal amount of electrical devices and uses pneumatic logic wherever possible insure trouble-free operation. The monitor eliminates the requirement of inspection personnel going beneath the locomotive, and it eliminates the need for the locomotive to be arbitrarily pit-inspected every two weeks for a lubricant level check.

REFERENCES:
patent: 2728070 (1955-12-01), Kelly
patent: 3333259 (1967-07-01), Carothers, Jr.
patent: 4192186 (1980-03-01), Quinn
patent: 4480610 (1984-11-01), Stinson
patent: 4491103 (1985-01-01), Deadman
patent: 4549164 (1985-10-01), Tewfik
patent: 4791400 (1988-12-01), Burks et al.

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