Patent ID: 11927282
Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  A | IPC A  F

Claim 6:
7. A blower comprising:
a main body having an inlet and an outlet; and
an outlet tube coupled to the main body proximate the outlet, the outlet tube having a circular cross section and including
a first section, and
a second section having a first rib, a second rib, and a channel positioned between the first rib and the second rib, each of the first rib and the second rib tapering between a first thickness at first diametrically opposed circumferential locations of the outlet tube and a second thickness at second diametrically opposed circumferential locations of the outlet tube, each of the first and second ribs having a varying thickness around a circumference of the outlet tube, the first and second ribs having an identical angle between a top of a respective rib and the channel along the entire circumference.