Patent ID: 6068059
Filing Date: 2000-05-30
Classification: A01D,Y10S

Abstract:
A ground-crop harvester, comprising:a) an excavating means arranged to scrape up a layer of soil and ground-crop;b) a primary conveyor configured to receive the soil and ground-crop scraped up by said excavating means and to separate soil from said ground-crop;c) a downstream conveyor arranged to receive the separated ground-crop from said primary conveyor;d) a primary conveyor adjustable speed drive mechanism that drives the primary conveyor;e) a downstream conveyor adjustable speed drive mechanism that drives the downstream conveyor;f) a harvester drive that drives the harvester;g) speed sensing means for sensing the forward speed of the harvester and for emitting signals representative of said speed;h) amount sensing means for sensing an amount of product conveyed by said downstream conveyor and for emitting signals representative of said amount;i) a controller that controls said primary conveyor adjustable speed drive mechanism to vary the speed of said primary conveyor based on said signals from said speed sensing means and that controls said downstream conveyor adjustable speed drive mechanism to vary the speed of said downstream conveyor based on said signals from said amount sensing means.