Patent · US Active

Percussion mechanism

US9545711B2 · kind B2 · utility

1Cited by

0References

10Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Alexander Hoop · Schaan, LI
Michael Wierer · Klagenfurt, AT
Albert Binder · Buchs, CH
Dieter Profunser · Feldkirch, AT
Stefan Battlogg · Hohenems, AT
Juergen Poesel · Bludenz, AT

Key dates

Filing date	Oct 17, 2012
Grant date	Jan 17, 2017
Priority date	—
Expiry date	Jan 4, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D2037/007
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A percussion mechanism includes a first shaft and a second shaft. One or more vanes are fastened to the first shaft. The vanes are arranged so as to be rotatable in a chamber of the second shaft. The chamber is filled with a magnetorheological fluid. A magnetic field source on the second shaft generates a magnetic field that is spatially modulated in the circumferential direction inside the chamber.

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