Communications: electrical – Selective – Having indication or alarm
Patent
1975-06-27
1977-06-21
Caldwell, John W.
Communications: electrical
Selective
Having indication or alarm
340268, 303103, 180105E, G08B 2100, B60T 804
Patent
active
040315096
ABSTRACT:
A multi-axled traction vehicle is equipped with a plurality of means for sensing the speeds of its respective drive axles, and control means is provided for producing a predetermined warning signal if the sensed speed of any one of the axles is under a predetermined low threshold level. In addition, means is provided for disabling the control means if none of the sensed axle speeds exceeds a predetermined higher threshold level, thereby preventing the production of a warning signal when the vehicle is not in motion.
REFERENCES:
patent: 2601140 (1952-06-01), Hines
patent: 2735090 (1956-02-01), Maenpaa
patent: 3699563 (1972-10-01), Cass
patent: 3706351 (1972-12-01), Neisch
patent: 3767270 (1973-10-01), Urban
patent: 3880475 (1975-04-01), Booher
Caldwell John W.
General Electric Company
Nowicki Joseph E.
Richardson, Jr. A. S.
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