Demag Ergotech Gmbh

Invenion Gmbh

Erich Schuermann

Ansgar Jaeger

Joerg Seidel

Juergen Herrmann

Marco Prigandt

A coupling has face gears for transmitting torque or transverse forces between a first part provided with a first face gear and a second part provided with a second face gear complementary to the first face gear. At least one of the parts is a shaft, an axle, a pin or a flange, and it is possible to bring the first face gear into form-fitting engagement with the second face gear. At least one of the face gears has at least one groove having a constant width and a longitudinal centerline forming a semicircular arc having a respective first center of curvature in at least one section of the groove and, in at least one other section of the groove, forming another semicircular arc having a respective second center of curvature.

Coupling

A foaming agent charging and mixing device comprises at least one mixing device and one foaming agent metering device, wherein the foaming agent charging and mixing device may be arranged between an plasticating screw and a mold. In order to improve the foaming agent charging and mixing device in a manner that the mixing with foaming agent is facilitated and at the same time a risk of obstruction of the foaming agent metering device is avoided, the foaming agent metering device is alternately opened and closed through the mixing device during operation thereof for supplying foaming agent to the plastic melting.

Growing community of inventors

Sendenhorst, Germany

Erich Schuermann