Drive seal
OwnerMichael Buchmann, Hans-Henning Zutz +1inventors
InventorsMichael Buchmann, Hans-Henning Zutz, Peter Wittka
Life of this patent
Estimating the term…
Abstract
A drive seal includes at least one metal ring having an annular running surface onto which is applied a thermally sprayed hard metal protective wear coating. The hard metal wear coating is coated by a sliding lacquer layer containing solid lubricants and which is softer compared to the hard metal wear layer.
Claims26
A drive seal comprising at least one metal drive ring having an annular running surface positionable in operation to confront an associated running surface of an adjacent metal ring, and including a thermally sprayed protective wear coating of hard metal formed on said running surface.
A process for the manufacture of a drive seal, comprising:
- preparing at least one metal drive ring having an annular running surface;
- and
- applying a protective wear coating of hard metal to the running surface by thermal spraying.
A drive seal, consisting of a metal sliding and/or counter ring having a running surface and a wear and tear protective coating in the area of its running surface wherein the wear and tear protective coating is formed by a thermally sprayed hard metal layer.
A process for the manufacture of a wear and tear protective coating on the running surface of a drive seal containing a metal sliding and/or counter ring, including applying a hard material layer onto the running surface by thermal spraying.
Dependencies are inferred from the claim text.