Scraper with rotating blade for engaging a rotating disk

Abstract

A scraper for mounting to a tool bar of a farm implement having at least one rotating disk for tilling soil, including a support mounted to the tool bar and a shaft pivotally attached to and extending from the support where the shaft has a central axis. A scraper blade is rotatably attached to an end of the shaft and the scraper blade comprises a perimeter wherein the shaft pivots to rotatably engage a side surface of the rotating disk to prevent soil from accumulating on the side surface and prevents debris from accumulating between the side surface and the scraper blade.

1 - 19 . (canceled) 
   
   
       20 . A scraper for mounting to a tool bar of a farm implement having rotating disk for tilling soil, the scraper comprising:
 a mounting bracket for removably attaching the scraper to the tool bar;   a shank having a first end and a second end, the shank being attached to the mounting bracket proximate the first end;   a shaft extending from the shank and having a central axis, a first end and a second end, the first end of the shaft pivotally attached to the shank proximate the second end of the shank; and   a scraper blade rotatably attached to the shaft proximate the second end and wherein the scraper blade comprises a perimeter and wherein the shaft pivots within a selected range of movement to rotatably engage the perimeter of the scraper blade with a side surface of the rotating disk to remove soil and debris that accumulates on the side surface.   
   
   
       21 . The scraper of  claim 20  and wherein the support comprises:
 left and right plates attached to opposites sides of the shank proximate the second end wherein the left and right plates define a slot therebetween.   
   
   
       22 . The scraper of  claim 21  and wherein the shaft is positioned within the slot. 
   
   
       23 . The scraper of  claim 22  and wherein the shaft comprises an aperture proximate the first end that aligns with a first set of apertures in the left and right plates such that a securing mechanism is positioned through the apertures to pivotally attach the shaft to the support. 
   
   
       24 . The scraper of  claim 22  and further comprising an upper stop and a lower stop positioned within the slot wherein the shaft is positioned between the upper stop and the lower stop such that the upper stop and the lower stop limit the pivotal movement of the shaft. 
   
   
       25 . The scraper of  claim 21  and wherein a position of the upper stop is adjustable. 
   
   
       26 . The scraper of  claim 20  and further comprising a bearing attached to the second end of the shaft for rotating the scraper blade about the shaft. 
   
   
       27 . The scraper of  claim 20  and wherein the scraper blade comprises a circular perimeter and wherein the scraper blade rotates clockwise or counterclockwise in the path of least resistance when contacting the rotating disk.