Patent · US Active

Blower

US9587648B2 · kind B2 · utility

0Cited by

0References

15Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Christian Barth · Celle, DE
Markus Hittmann · Waiblingen, DE
Cornelius Gindele · Plochingen, DE

Key dates

Filing date	Jan 21, 2016
Grant date	Mar 7, 2017
Priority date	—
Expiry date	Jan 21, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/667
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A blower has a blower tube and a fan unit that conveys an air flow through the blower tube. The fan unit has a fan having a fan axis. The fan conveys the air flow in the direction of the fan axis. The air flow exits the blower tube in an outflow direction at a tube aperture. The handle has on its lower side a grasping point, which in the operating position of the blower, lies on a vertical axis through the blower's center of gravity. The tube aperture has a center axis that is oriented in the outflow direction. So that the forces received by the user at the handle during operation can be made smaller, it is provided for the spacing from the center axis of the tube aperture to the grasping point to be smaller than the spacing from the fan axis to the grasping point.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.