US 11,911,823 B2
Rake arm assemblies
Peter Karlsson, Molnlycke (SE); Lars Löwgren, Molnlycke (SE); and Karl Hansson, Molnlycke (SE)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by GENERAL ELECTRIC COMPANY, Schenectady, NY (US)
Filed on Oct. 14, 2021, as Appl. No. 17/501,139.
Claims priority of provisional application 63/107,607, filed on Oct. 30, 2020.
Prior Publication US 2022/0134443 A1, May 5, 2022
Int. Cl. B22F 12/67 (2021.01); B22F 12/00 (2021.01); B29C 64/236 (2017.01); B33Y 30/00 (2015.01); B22F 10/28 (2021.01)
CPC B22F 12/67 (2021.01) [B22F 12/224 (2021.01); B29C 64/236 (2017.08); B33Y 30/00 (2014.12); B22F 10/28 (2021.01)] 13 Claims
OG exemplary drawing
 
1. A rake arm assembly mountable to a build table, the rake arm assembly comprising:
a rake arm body having a first end and a second end, the rake arm body extending in a direction transverse to a working axis at an upper surface of the build table;
a first guide rail mountable to a lower surface of the build table and extending along the working axis;
a first rake support member fixed to the first end of the rake arm body and movably supported on the first guide rail;
a second rake support member fixed to the second end of the rake arm body, the second rake support member comprising:
a first flange extending from the second end of the rake arm body to a first vertical position below the rake arm body; and
a second flange extending from the first flange to a second vertical position below the rake arm body, the second vertical position being between the rake arm body and the first vertical position; and
a guide pad fixed to a lower surface of the second flange of the second rake support member opposite the rake arm body and positionable at the lower surface of the build table, the guide pad including a front wall, a rear wall, a pair of side walls extending between the front wall and the rear wall, an upper surface, a lower surface, and at least one slot formed in the lower surface of the guide pad, the pair of side walls are tapered toward the upper surface of the guide pad.