A - Human Necessities – 01 – D
Patent
A - Human Necessities
01
D
341/107
A01D 34/00 (2006.01) A01D 47/00 (2006.01) G05D 1/04 (2006.01)
Patent
CA 1234614
ABSTRACT OF THE DISCLOSURE An automatic height control system for a header on a farm implement is disclosed wherein the height of the header is continuously controlled in response to the height of the crop on which the header is operating. The top of the crop is detected by sonar detection units, and appropriate electronic and electromechanical means are provided for controlling the height of the header in response to signals from the sonar detection units.
477797
Lundahl Ezra C.
Thornley Wilford R.
Wiser James G.
Lundahl (ezra C.) Inc.
Smart & Biggar
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