Firma Carl Freudenberg

Firma Feodor Burgmann Dichtungswerk

Gerd Upper

Hans Forch

Paul Andorf

Alfred Lieb

Dietmar Franz

Feodor Burgmann

Walter Guttropf

Klaus Safft

A robot finger comprising a substantially enclosed, hollow elongated body, which body has integral therewith and running lengthwise exteriorly thereof a gripping pad, said hollow body being deformable by fluid pressure in the direction of said gripping pad, said gripping pad being nondeformable in the direction of said body by said fluid pressure, said elongated body having a fluid injection inlet in a wall thereof.

Robot finger

A resilient shaft sealing lip is biassed to bear against a shaft when the shaft is at rest to prevent egress of lubricating liquid past the sealing lip, but upon rotation of the shaft at its rated speed the lip lifts so that sealing friction forces are limited to those generated by liquid friction and a return conveyor mechanism provided in combination with the lip, is effective upon shaft rotation to return escaping liquid and thereby take the place of a tight sealing lip for this purpose. The arrangement thereby provides reduced wear, reduced heat generation and reliable prevention of leakage with long service life consistent with economical and modular construction.

Sealing arrangement

Growing community of inventors

Gorxheimertal, Germany

Gerd Upper