Communications: electrical – Selective – Having indication or alarm
Patent
1978-02-02
1979-10-30
Waring, Alvin H.
Communications: electrical
Selective
Having indication or alarm
200 6122, B60C 2300
Patent
active
041730119
ABSTRACT:
A low tire pressure warning system for a trailer having a frame for supporting the body of the trailer, having tandem axles equipped with normally inflated pneumatic tires, leaf spring suspension structure for the axles including a walking beam that is pivoted on the frame for tilting movement in opposite directions from a normal position in accordance with the deflation of a tire of either one of the axles, a signal member for indicating that one of the tires doesn't have enough air, a signal operating switch in circuit with the signal member, and mechanical actuating structure for the signal operating switch.
REFERENCES:
patent: 2499669 (1950-03-01), Murat
Logan II Charles C.
Waring Alvin H.
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