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

Claim 0:
1. A corrugated tube for a blower, comprising:
a first rib extending from a surface of the corrugated tube, the first rib extending around an entire circumference of the corrugated tube and defining a circular cross-section, the first rib tapering between a first thickness and a second thickness;
a second rib extending from the surface of the corrugated tube and being spaced apart from the first rib, the second rib extending around the entire circumference of the corrugated tube and defining a circular cross-section, the second rib tapering between the first thickness and the second thickness, the first thickness of the first and second ribs being aligned with one another and the second thickness of the first and second ribs being aligned with one another; and
a channel positioned between the first rib and the second rib and defining an elliptical cross-section about the corrugated tube, the channel having a first width between adjacent first thicknesses and a second width between adjacent second thicknesses, the first width being less than the second width.