Height control for agricultural machine

Details Height control for agricultural machine Height control for agricultural machine

1984-01-09

1986-02-25

Chin, Gary

Boots, shoes, and leggings

56 102, 56DIG15, A01D 7528

Patent

active

045731241

ABSTRACT:
An agricultural machine having a machine element supported by and movable relatively to a wheel-supported main frame with power means for moving it up and down relatively in small incremental steps, to vary the distance to ground level. The distance to ground is determined and electrical signals corresponding to the distance generated. A control circuit receives the signals and provides "up" and "down" pulses. A monitor-controller circuit receives the "up" and "down" pulses and transmits them to the power means for actuating an incremental step up or down for each pulse. The monitor-controller determines whether a preselected member of consecutive "down" pulses occur without an "up" pulse between them and within a short predetermined time period and actuates circuit disabling and override means only when the preselected number of "down" pulses occur within the predetermined time period; if so, further "down" pulses are prevented from passing to the power means, and both "up" and "down" pulses are nullified for a set time period, during which the machine element is moved toward or to its initial position.

REFERENCES:
patent: 4136508 (1979-01-01), Coleman et al.
patent: 4229724 (1980-10-01), Marcus
patent: 4250402 (1981-02-01), Mizote et al.
patent: 4300638 (1981-11-01), Katayama et al.
patent: 4414792 (1983-11-01), Bettencourt et al.
patent: 4437295 (1984-03-01), Rock
patent: 4461015 (1984-07-01), Kulhavy
patent: 4507910 (1985-04-01), Thornley et al.

Affiliated with

Also associated with

Rating

Height control for agricultural machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Height control for agricultural machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Height control for agricultural machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1015141