Patent · US Active

Battery operated handheld power tool

US9517555B2 · kind B2 · utility

7Cited by

9References

19Claims

0Family size

Assignee

HUSQVARNA AB · SE

Inventors

Mikael Racov · Huskvarna, SE
Henrik Hvitman · Norrahammar, SE
Peter Gunnarsson · Munkfors, SE

Key dates

Filing date	Oct 27, 2011
Grant date	Dec 13, 2016
Priority date	—
Expiry date	Jun 14, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA01D34/90
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A battery operated handheld power tool, comprising a working tool assembly (20), a handle assembly (10) and an elongate tubular rod (30). The working tool assembly (20) comprises a motor housing (26) having a first inner space (27), comprising an electric motor (21) with a fan (25). The first inner space (27) is connected to the exterior of the working tool assembly (20) by means of at least one air outlet (28). The handle assembly (10) comprises a second inner space (19) in which a control unit (15) is positioned, the second inner space (19) being in flow communication with the exterior of the handle assembly (10). The elongate tubular rod (30) defines an air guiding channel (33), in flow communication with the first inner space (27) and the second inner space (19).

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