Robert Boschgmbh

The Gleason Works

Walter Barth

Manfred Stabler

Winfried Helm

Rudolf Fuchs

Gunter Schaal

Karl-Heinz Braunbach

Erich Borst

Uwe Gaiser

Theodore J Krenzer

David M Martinez

Gerd Berner

Earl D Ervay

Friedrich Hausslein

Frank Langenfelder

Michael Knuth

A ring gear includes teeth () and tooth gaps (), in which the teeth () can be brought vie tooth flanks () into engagement with a corresponding pinion. The tooth flanks (), after a final engagement point () of the pinion, from the tooth head () toward the tooth base (), compared to standard tooth flanks (), are made to approximate a trochoid (), described by the pinion and projected into a normal section.

Ring gear

Electric hand tool, in particular drill

Eccentric disk sander

Hand power tool with a multi-part, manually operable quick-action chuck

Protective hood for grinding machines, particularly angle grinders, and

A clamping fixture for axially clamping a tool, on a flange of a driven spindle and comprising a clamping nut having an internal thread to be screwed on an end portion with an outer thread of the driven spindle, a clamping member arranged between the tool and the clamping nut for transmitting an axial clamping force to the tool upon tightening of the clamping nut, a manually operable adjustable member freely rotatable relative to the end portion of the driven spindle, and a gearing for gear-coupling the adjusting member to the clamping nut and gear-coupling the clamping nut to the clamping member.

Clamping fixture for axially clamping a tool in place, in particular a

Eccentric grinder

An eccentric grinder is provided with a device for changing a grinding motion. The grinder includes a grinding disc eccentrically positioned on a driving shaft and supporting an internal and an external toothed crowns which are brought to a rolling motion on respective external and internal toothed crowns supported on the housing of the grinder. The toothed crowns supported on the housing are axially displaceable by a handle provided externally of the housing. Three various grinding motions for coarse, medium and fine grinding can be obtained by the drive of the grinder.

Eccentric grinder with a device for changing a grinding motion

Growing community of inventors

Leinfelden-Echterdingen, Germany

Walter Barth