US 11,964,283 B2
Lifter bar
Victor Moreno, Santiago (CL); Hector Lara, Santiago (CL); and Alonso Pinto, Santiago (CL)
Assigned to Vulco S.A., (CL)
Appl. No. 17/417,998
Filed by Vulco S.A., Santiago (CL)
PCT Filed Dec. 13, 2019, PCT No. PCT/IB2019/060751
§ 371(c)(1), (2) Date Jun. 24, 2021,
PCT Pub. No. WO2020/136488, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 1821262 (GB), filed on Dec. 28, 2018.
Prior Publication US 2022/0088609 A1, Mar. 24, 2022
Int. Cl. B02C 17/00 (2006.01); B02C 17/18 (2006.01); B02C 17/22 (2006.01)
CPC B02C 17/1825 (2013.01) [B02C 17/225 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A lifter bar for use in a grinding mill, the lifter bar comprising:
an elongate structural support defining a longitudinal axis and extending from (i) a first end transverse to the longitudinal axis to (ii) a second end transverse to the longitudinal axis;
a plurality of structural plates extending along the longitudinal axis in spaced relation, where each of the structural plates of the plurality of structural plates is transverse to the longitudinal axis, and each defines opposed edges; and
an elastomer enclosure surrounding the plurality of structural plates and at least partially surrounding the elongate structural support, to prevent each of the structural plates of the plurality of structural plates from being directly impacted by a grinding medium when used in a grinding mill.