US 12,440,930 B2
Fume extractor
Jacob C. Savstrom, Mound, MN (US)
Assigned to Donaldson Company, Inc., Bloomington, MN (US)
Appl. No. 17/782,517
Filed by Donaldson Company, Inc., Bloomington, MN (US)
PCT Filed Dec. 3, 2020, PCT No. PCT/US2020/063002
§ 371(c)(1), (2) Date Jun. 3, 2022,
PCT Pub. No. WO2021/113437, PCT Pub. Date Jun. 10, 2021.
Claims priority of provisional application 62/944,162, filed on Dec. 5, 2019.
Prior Publication US 2023/0001521 A1, Jan. 5, 2023
Int. Cl. B23K 37/00 (2025.01); B08B 15/04 (2006.01)
CPC B23K 37/00 (2013.01) [B08B 15/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A fume extractor comprising:
an extractor housing defining an outlet of the fume extractor;
a hose coupled to the extractor housing, wherein the hose has a distal end defining a first inlet of the fume extractor;
a diffusion plate coupled to the extractor housing, wherein the diffusion plate defines a plurality of openings that cumulatively define a second inlet of the fume extractor;
a fan disposed in the extractor housing, the fan configured to connect each of the first inlet and the second inlet to the outlet;
a first supporting surface opposite the diffusion plate relative to the extractor housing;
a second supporting surface is from 80° to 100° to the diffusion plate, wherein the first supporting surface and the second supporting surface are configured to selectively rest on a planar surface, and wherein the fume extractor defines a hose channel extending about a periphery of the fume extractor that is configured to selectively receive the hose; and
an electrically conductive wire electrically coupling the diffusion plate to the first supporting surface and the second supporting surface.