Syncro-matic circuit used with material spreaders

Details Syncro-matic circuit used with material spreaders Syncro-matic circuit used with material spreaders

1977-03-16

1979-01-02

Dobeck, B.

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318446, 239155, 222 76, 222626, G05B 106

Patent

active

041329414

ABSTRACT:
A vehicle with apparatus for discharging material such as salt on a roadway or the like at a rate that a control system automatically varies with vehicle speed includes means that ordinarily interrupts normal control to prevent discharge of material while vehicle speed is below preselected threshold value. The system also includes a blast circuit which responds to momentary manual operation of a switch to impose a blast signal on control system to override all other control activity to cause rapid dispensing of material for a preselected period even if vehicle is stopped or moving below the threshold speed.

REFERENCES:
patent: 3677540 (1972-07-01), Weiss
patent: 3679098 (1972-07-01), Weiss
patent: 3792709 (1974-02-01), Johnson et al.
patent: 3825185 (1974-07-01), Moon et al.
patent: 4023020 (1977-05-01), Lestradet

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