Communications: electrical – Systems – Timer control
Patent
1988-08-18
1989-11-28
Crosland, Donnie L.
Communications: electrical
Systems
Timer control
340439, 3404574, 364569, 36455101, 36442403, 73112, 731173, G08B 100, B60Q 100
Patent
active
048840548
ABSTRACT:
A vehicle maintenance interval monitor allows selection of mileage intervals between servicing for a number of individual maintenance requirements. The monitor is computerized and battery powered. The monitor keeps track of the actual date and time. The miles traveled are computed by determining a change in the actual date and time and multiplying this time by a speed factor. When a service interval has been completed the monitor provides a suitable warning indication.
REFERENCES:
patent: 4031363 (1977-06-01), Freeman et al.
patent: 4159531 (1979-06-01), McGrath
patent: 4307291 (1981-12-01), Gloviak et al.
patent: 4404641 (1983-09-01), Bazarnik
patent: 4739482 (1988-04-01), Wrigge
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