US 11,746,507 B2
Carbide cutter bit with ribbed sides and conical tip
Thomas Marshall Congdon, Dunlap, IL (US); David Bruno Parzynski, Jr., Peoria, IL (US); and Nathan R. Bjerke, Peoria, IL (US)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by CATERPILLAR INC., Deerfield, IL (US)
Filed on Jun. 22, 2021, as Appl. No. 17/354,575.
Application 17/354,575 is a division of application No. 16/192,061, filed on Nov. 15, 2018, granted, now 11,098,584.
Prior Publication US 2021/0317741 A1, Oct. 14, 2021
Int. Cl. E02F 9/28 (2006.01); E21C 35/183 (2006.01); B28D 1/18 (2006.01); G06F 30/17 (2020.01); G06T 17/00 (2006.01); B33Y 80/00 (2015.01); B33Y 50/00 (2015.01)
CPC E02F 9/2866 (2013.01) [B28D 1/188 (2013.01); E21C 35/183 (2013.01); B28D 1/186 (2013.01); B33Y 50/00 (2014.12); B33Y 80/00 (2014.12); G06F 30/17 (2020.01); G06T 17/00 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A method for manufacturing a leading end, conical-shaped tip portion of a cutter bit using a computer-readable, three-dimensional model, wherein the computer-readable, three-dimensional model is suitable for use in manufacturing at least the leading end, conical-shaped tip portion of a cutter bit, wherein the leading end, conical-shaped tip portion includes a plurality of circumferentially-spaced ribs projecting radially outwardly from an outer peripheral surface of the leading end, conical-shaped tip portion, each rib extending rearwardly from a front end apex of the leading end, conical-shaped tip portion and including opposite side surfaces spaced from each other and projecting radially outwardly from the outer peripheral surface at an angle greater than zero degrees and less than 180 degrees relative to the outer peripheral surface, and the computer-readable three-dimensional model is created by:
inputting data representing the leading end, conical-shaped tip portion to a computer; and
using the data to represent the leading end, conical-shaped tip portion as the three-dimensional model, the method for manufacturing comprising the steps of:
converting the computer-readable, three-dimensional model of the leading end, conical-shaped tip portion of the cutter bit into a plurality of slices that each define a cross-sectional layer of the leading end, conical-shaped tip portion of the cutter bit; and
successively forming each layer of the leading end, conical-shaped tip portion of the cutter bit by additive manufacturing.