Andreas Stihl Ag Co. Kg

Andreas Stihl

Andreas Stihl Ag & Co.

Other

Firma Andreas Stihl

Universitatsklinikum Jena

Siemens Mobility Gmbh

Wölfl, Stefan

Günter Wolf

Johannes Menzel

Reinhold Fink

Helmut Lux

Maximilian Eberhardt

Andreas Guip

Marcel Förster

Klaus Hoppner

Ulrich Kapinsky

Holger Vollmer

Wolfgang Weissert

Jan Kurzenberger

Anton Wehle

Bernhard Dürr

Michael P Tinius

Werner Geyer

Helmut Zimmermann

Georg Maier

Jörg Schlossarczyk

Jürgen Häberlein

Dieter Wieland

Jonas Lank

Friedrich Hollmeier

Hermann Weiss

Roland Adam

Ralf Tuckermann

Philipp Neumann

Werner Vonderau

Marc Schmid

Helmut Schlessmann

Joshua Hesterberg

Christoph Von Hiller

Markus Keller

Matthias Maier

Jurgen Wolf

Gerhard Meyer

Sascha Kirchhoff

Rudolf Dirks

Herbert Armbruster

Reinhard Gommel

Rebekka Helfen

Thomas Sonnenkalb

Ralf-Rainer Kemmler

Robert Köhli

Ralf Steidinger

Adrian Biadatz

Andreas Wolf

Mirko Schwozer

Helmut Treutler

Gerhard Pfleiderer

Jens Helge Kutzbach

Ralf Mrowka

Lothar Ulrich

Thomas Techow

Manfred Thaiss

Benno Tilders

Martin Dombrowsky

Xinlai Cheng

Hermann Jung

Jurgen Laser

Hans G Salomon

Michael Kiesel

Ute Dawin

Harald Bühner

Jürgen Bernert

Harald Decker

Martin Schif

Michael März

Volker Lempges

Ludger Alofs

Phillip Neumann

Reinhold Belzer

Jörg Bläsi

Stefan Wolfl

Daniel Sasse

Wolfgang Grimm

Stephanie Van Eymeren

Torsten Hannemann

Vollmer Holger

Stefan WÖLFL

Oliver Ehnes

Martin Bürkle

Horst Brudermüller

A blower wheel is provided with a base member having an axis of rotation and with a rotor of a generator, wherein the rotor is fixedly secured on the blower wheel. At least one magnet is arranged on the rotor. An inertia ring is fixedly secured on the base member at a spacing to the at least one magnet. The inertia ring is made of a first material having a first density and the base member is made of a second material having a second density. The first density is greater than the second density. An internal combustion engine is provided with such a blower wheel.

Blower wheel and power tool with an internal combustion engine and a blower wheel

A hand-guided power tool has an internal combustion engine that is arranged in a power tool housing and drives a tool member of the power tool. A fuel tank and at least one electric component are provided. A control device that is an electronic control unit is connected to the at least one electric component and controls the at least one electric component. The power tool has a top face which, when parking the power tool in a usual parking position on a flat horizontal support surface, is facing upwardly. The electronic control unit has a plug contact and a connecting plug is plugged into the plug contact. The connecting plug is connected by a connecting line to the at least one electric component. The connecting plug is arranged on a top side of the control device which is facing upwardly in the usual parking position of the power tool.

Hand-guided power tool with a control device

A hand-guided power tool has a power tool housing and an internal combustion engine arranged in the power tool housing and configured to drive a tool member of the power tool. A fuel tank and at least one electric component are provided. A control device that is an electronic control unit is connected to the at least one electric component of the power tool and controls the at least one electric component. The power tool has a top face which, when parking the power tool in a usual parking position on a flat horizontal support surface, is facing upwardly. The electronic control unit is positioned laterally adjacent to the fuel tank device, when viewing the power tool in the usual parking position.

A power tool has a tool unit arranged between housing and housing cover. A stud bolt secured on the housing projects through a cover opening to the exterior. A support sleeve of the housing cover is provided with the cover opening and with a support surface for a fastening element screwed onto the stud bolt to secure the housing cover on the housing. The fastening element has a first section arranged at the cover exterior and delimited by a circumferential contour with flats. A maximum radial distance of the outer circumference of the support sleeve relative to the longitudinal center axis of the stud bolt at the support surface and at an adjoining first section of the support sleeve is at most as large as half the width across flats of the fastening element; a tool engaging the flats thus fits across the first section of the support sleeve.

Power tool

The invention relates to a method for inducing pluripotent stem cells, wherein a mammalian cell is contacted with a compound characterized by a general formula 1 wherein Ris (CH)E, with E being CCH or CN and m being 0, 1, or 2, and Ris selected from F, CI, Br, ORand R, with Rbeing selected from H, (CHF)CHF, with n=0 or 1. The invention further relates to stem cells obtained by the method of the invention, and culture media comprising the compound of the invention.

Method for activating Oct4 for induction of pluripotent stem cells

A hand-held power tool is provided with a drive motor and a clutch connected to the drive motor. The drive motor drives a tool member through the clutch. The clutch has a clutch drum with a circumferential wall provided with an end face. A follower member engages a groove in the circumferential wall of the clutch drum and a driven element is connected to the follower member to be driven by the follower member. The groove extends from the end face of the circumferential wall into the circumferential wall and has a groove bottom and two groove sides positioned opposite each other. The circumferential wall has a protrusion located at the groove bottom. The protrusion has a protrusion thickness measured at the groove bottom that amounts to at least approximately 110% of a wall thickness of the circumferential wall measured at the two groove sides.

Hand-held power tool with a clutch and method for producing a groove in the circumferential wall of a clutch drum of a hand-held power tool

A work apparatus has at least one handle () and a drive motor (). The handle () is connected to said drive motor () via at least one anti-vibration element (). The anti-vibration element () is held on a first housing part and coacts with a second housing part. To achieve good damping, the anti-vibration element () includes a damping section () having an annularly-shaped wall () which expands in the direction of the second housing part.

Work apparatus

A chain saw includes a guide bar for a saw chain, a housing, a sprocket wheel cover, and a stud fixed on the housing for threadably fastening the sprocket wheel cover and the guide bar. The free thread end of the stud has a maximum usable screw-in depth (t) for a nut. A stop for the sprocket wheel cover having a stop surface as well as a support surface for contact engaging the stop surface are provided. In the mounted state of the guide bar, a distance (a) remains between the stop surface and the support surface. The support surface contact engages the stop surface when the guide bar is removed and the nut is tightened and screwed onto the studs to a stop screw-in depth. The stop is configured in such a manner that the maximum usable screw-in depth (t) is greater than the stop screw-in depth.

Chain saw

A handheld work apparatus includes a drive motor () to drive a tool and at least one handle () as well as at least one anti-vibration element () that includes a coil spring (). The coil spring () is operatively connected to the handle () at one end and with the drive motor () at the other end. The anti-vibration element has a tear-off guard () which extends through the anti-vibration element (). A centering element () is arranged on the tear-off guard () to avoid, in a simple manner, that the tear-off guard moves radially outwards.

Handheld work apparatus

A manually guided implement, such as a power saw, a cut-off machine, or the like, having a drive motor for driving a tool of the implement. The drive motor has a drive shaft that is rotatably driven about an axis of rotation. The implement has a handle on which is disposed at least one control handle for the drive motor. Formed between the handle and the drive motor is a vibration space that is spanned by at least one anti-vibration element, at least one of which includes a coil spring, the longitudinal axis of which is disposed approximately perpendicular to a longitudinal plane of the implement. The vibration space is spanned by at least one connecting element, the longitudinal axis of which is inclined relative to a transverse plane of the implement that is disposed perpendicular to the longitudinal plane.

Manually guided implement

A motor chain saw has a housing, a motor arranged in the housing, a drive pinion driven by the motor, and a guide bar connected to the housing. A saw chain is driven in circulation about the guide bar by the drive pinion. A lateral panel is arranged between the housing and an attachment section of the guide bar. The guide bar and the lateral panel each have a distance relative to the drive pinion upstream and downstream of the drive pinion when viewed in a circulating direction of the saw chain. The lateral panel has a first guide that guides the saw chain at a level of rivets of the saw chain, wherein the first guide extends approximately parallel to the plane of the guide bar.

Motor chain saw

A sprocket cover arrangement for a hand-held chain saw has a housing and a sprocket cover that has an opening and is connected to the housing. At least one stud bolt having a first end secured to the housing and having a second end that is a free threaded end is provided. The free threaded end projects through the opening of the sprocket cover to an exterior side of the sprocket cover when the sprocket cover is positioned in an operating position on the housing. A nut is screwed onto the free threaded end of the at least one stud bolt on the exterior side of the sprocket cover so as to secure the sprocket cover on the housing. The nut is secured captively, rotatably and with play in the opening of the sprocket cover.

Sprocket cover arrangement for a hand-held chain saw

A manually guided implement having a housing that accommodates an internal combustion engine for driving a tool. At least an upper handle extends in a longitudinal direction of the implement on an upper side thereof. A first antivibration element connects the handle to the housing, wherein a longitudinal central axis of the antivibration element is inclined relative to a longitudinal central plane of the implement.

A tubular handle for a manually guided implement, especially a power chain saw or the like, is provided. The handle has an essentially circular cross-section and at least one mounting portion for fixing the handle to the implement. In the area of the mounting portion, the circular cross-section is flattened to form an at least approximately planar abutment portion, beyond which a circular cross-sectional portion is retained. The abutment portion is provided for fixing the tubular handle to the implement.

Tubular handle for a manually guided implement

An antivibration element () is especially for a portable handheld work apparatus such as a motor-driven chain saw or a brushcutter. The antivibration element includes a coil spring () and at least one guide. An end section () of the coil spring () is fixed to the guide. In order to provide a progressive characteristic line of the coil spring () in a simple way, the coil spring () has a transition section (), which borders at the end section () and is guided with play on the guide. When the coil spring is under load, the turns of the transition section come at least in part into contact engagement with a helically-shaped slot in the guide so that the spring stiffness of the antivibration unit increases.

Antivibration element

Growing community of inventors

Oppenweiler, Germany

Günter Wolf