Patent ID: 8535120
Filing Date: 2013-09-17
Classification: A01B,B24B

Abstract:
1. A blade sharpening system, comprising: a base; a pendulous arm having a first end rotatably coupled to the base by a pivot joint; a sharpener suspended by the pendulous arm and configured to engage a generally circular agricultural implement blade while mounted on the agricultural implement, wherein the pendulous arm is configured to enable movement of the sharpener to accommodate lateral variations in blade profile; and a centering assembly configured to bias the sharpener toward a neutral position; wherein the centering assembly comprises: a first arm rotatably coupled to the pivot joint and in contact with a first side of the pendulous arm; a second arm rotatably coupled to the pivot joint and in contact with a second side of the pendulous arm; and a spring extending between the first arm and the second arm, wherein the spring is configured to bias the first arm and the second arm toward the pendulous arm.