Patent ID: 6298641
Filing Date: 2001-10-09
Classification: A01F

Abstract:
An stone ejection system for ejecting a stone in a feederhouse of an agricultural combine comprising:a. said feederhouse having a sidewall and a feederhouse floor;b. a front drum rotationally attached to the sidewall;c. a rear drum rotationally attached to the sidewall;d. a conveyor chain encircling the front drum and the rear drum, said chain having an upper apron returning from the rear drum to the front drum and a lower apron returning from the front drum to the rear drum;e. a crop flow entering the feederhouse proximate to the front drum, said crop flow passing beneath said front drum and lower apron and above the feederhouse floor;f. said feederhouse floor having a floor aperture, therein;g. a stone trap door pivotally attached to the feederhouse floor by a door hinge, said door covering the floor aperture; andh. said stone trap door capable of rotating in response to the a signal sent to a solenoid, the stone trap door rotating so as to uncover said floor aperture.