Leybold-heraeus Gmbh

Leybold-hereaus Gmbh

Otto-Horst Hoffmann

Hans Aichert

Herbert Stephan

Friedrich Stark

Walter Dietrich

Walter Heil

Alfred Hauff

Coupling valve for joining stationary and movable evacuatable chambers having confronting chamber walls displaced parallel with respect to each other. A first frame is fastened to one chamber wall and is joined by a resilient member to a second movable frame which can be brought into engagement with the other chamber wall. The movable frame is provided with at least one actuator by which it can be tightened against the confronting chamber wall.

Coupling for stationary and movable vacuum chambers

Method for vacuum depositing corrosion and oxidation resistant alloy coatings on turbine buckets having leading edges and trailing edges, with simultaneous rotation of the turbine buckets about their longitudinal axis in a vapor stream above a vapor source. The time of stay of each element of the surface above the vapor source is varied during a 360.degree. rotation such that it is shortest when the leading edges and the trailing edges are pointed towards the vapor source and longest when the concave and convex flanks are presented to it.

Method for vapor-coating turbine buckets

Pass-through heating device for vacuum coating apparatus having a heating chamber with at least one heating device, a thermal barrier positioned between the walls of the heating chamber and the heating device parallel to the longitudinal axis of the coating apparatus.

Heating system for vacuum coating apparatus

An operating mechanism for valves and the like comprises a housing with a port situated therein which is to be opened and closed. Associated with the port is a seat and a valve plate for closing the port. A rotatable shaft drive mechanism for the valve plate includes a shaft which rotates in one direction to effect movement of the valve plate from its open position to its closed position followed by a pressing movement over the valve plate against the seat and rotates in the other direction to effect movement of the valve plate in the opposite direction. The rotatable shaft drive mechanism includes an intermittent drive for the transformation of the rotatory movement of the shaft to the desired movement of the valve plate.

Operating mechanism for valves, gates and the like

Evaporating crucible having a crucible floor and a peripheral rim therearound. The floor has a plurality of floor apertures for feeding a plurality of rods of evaporating material and, surrounding the floor apertures, superelevations are provided whereby the distance from the crucible floor to the maximum fill level of the evaporating material is reduced by at least fifteen percent.

Evaporating crucible

Vacuum apparatus for coating substrates by rotation including a vacuum chamber with an elongated material source having a longitudinal axis and a transverse axis, a substrate rack with a plurality of fastening points for the planar arrangement of a plurality of substrates above the material source in a substantially uniform distribution over its surface and a drive associated with the substrate rack for rotating substrates. The substrate rack has to parallel substrate bearers disposed fork-wise with couplings for the substrates positioned on the confronting inner sides of the substrate bearers. The substrate bearers are connected by angle drives to the substrate couplings and a motor via a drive shaft.

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Rodenbach, Germany

Otto-Horst Hoffmann