Patent ID: 7427071

Claim:
A divided driver device for a mechanical face seal for mounting to a rotary component and for the transmission of a torque from the rotary component to a seal ring fastened to the driver device, said driver device being divided in at least a single radial plane for forming sections in the form of segments of a circle, said sections being adapted to be clamped together in the shape of a ring, and said driver device being axially sub-divided into a radially divided retaining ring for retaining the seal ring and a radially divided mounting ring for mounting to the rotary component, said mounting ring and retaining ring being coupled together for rotation in common, wherein said retaining ring includes sections in the form of segments of a circle adapted to be placed together in a sealed manner in the shape of a ring having an inner radial dimension that is greater than the nominal outer radial dimension of the rotary component and further including peripherally aligned end faces abutting each other, and said mounting ring including at least a pair of sections in the form of segments of a circle, said sections being adapted to be combined into a ring having an inner radial dimension that is smaller than that of the retaining ring and smaller than the nominal outer radial dimension of the rotary component for clamping engagement of the mounting ring with the rotary component, wherein the retaining ring and the mounting ring are coupled together with play in at least the circumferential direction by at least one drive pin projecting axially from an axial end face of one of the mounting and retaining rings and engaging, in a loosely seated manner, in a recess defined in an adjacent end face of the other of the mounting and retaining rings, the retaining ring and the mounting ring being axially engaged together to form a claw clutch, wherein the claw clutch is interrupted by the recess engaged with the at least one drive pin.