US 12,352,274 B2
Axial blower
Nathaniel A. Herrera, Oak Creek, WI (US); Adam F. Czerwonka, Mukwanago, WI (US); Marcus T. Jenkins, Wauwatosa, WI (US); Shannon C. Bartlett, Cedarburg, WI (US); John L. Whealon, West Bend, WI (US); and Drake J. Schlosser, Hartford, WI (US)
Assigned to Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Mar. 20, 2023, as Appl. No. 18/186,455.
Claims priority of provisional application 63/330,883, filed on Apr. 14, 2022.
Claims priority of provisional application 63/321,899, filed on Mar. 21, 2022.
Prior Publication US 2023/0296102 A1, Sep. 21, 2023
Int. Cl. F04D 25/06 (2006.01); F04D 19/00 (2006.01); F04D 25/08 (2006.01); F04D 29/44 (2006.01); F04D 29/70 (2006.01)
CPC F04D 25/0673 (2013.01) [F04D 19/002 (2013.01); F04D 29/703 (2013.01); F04D 25/084 (2013.01); F04D 29/441 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An axial blower comprising:
a fan having a rotational axis;
a housing surrounding the fan, the housing including
an inlet disposed at a position along the rotational axis upstream of the fan,
a fluid intake volume upstream of the inlet,
an outlet disposed at a position along the rotational axis downstream of the fan,
a distal projection extending at an acute angle away from the inlet in an upstream direction along a reference line extending from the rotational axis through the inlet, and
a battery interface extending along the distal projection, the battery interface located upstream of the inlet, the battery interface configured to suspend a battery pack therefrom to position the battery pack in the fluid intake volume;
an intake grate positioned between the fluid intake volume and the inlet, the intake grate configured to permit fluid flow between the fluid intake volume and the inlet; and
wherein the fluid intake volume is unobstructed between the battery interface and the intake grate; and wherein the acute angle is formed between the rotational axis and the reference line extending from the rotational axis.