US Patent 11554504 Change-over coupling

The invention relates to a change-over coupling, change-over device and checking or processing system, comprising: a clamping element for bracing with a corresponding clamping element on the change-over adapter, at least one electrical and/or optical plug connection element for connecting to at least one corresponding electrical and/or optical plug connection element on the change-over adapter, and a fluid coupling element for connecting to a corresponding fluid coupling element on the change-over adapter. In at least one example, the fluid coupling element protrudes further in the direction of the connection with the change-over adapter than the electrical and/or optical plug connection element.