Patent ID: 11858716
Assignee: HILTI AKTIENGESELLSCHAFT
Field: Surface technology, coating (Chemistry)
Classification: CPC B | IPC B

Claim 9:
10. The system according to claim 1, wherein the cartridge outer wall s cylindrical on an outside;
wherein the side wall of the support structure comprises:
a cylindrical outer tube,

a plurality of outer rings which are each mounted in said outer tube in an axially shiftable manner, each tapering in an axial cross section in a trapezoidal or triangular shape toward a cylinder axis and each resting with their broad sides against an inside of the outer tube, and
a plurality of inner rings which are each arranged alternately with the outer rings in the axial direction, partly projecting radially between the outer rings and each widening in an axial cross section in a trapezoidal or triangular shape toward the cylinder axis;
wherein each inner ring has a plurality of radial incisions distributed over its circumference to change its diameter such that said inner ring can be pressed radially inward by axially pushing together adjacent outer rings and, as a result, the inner diameter of said inner ring can be reduced to be equal to the outer diameter of the cartridge outer wall so that said inner ring is pressed against the outer wall of the coaxial cartridge inserted in the support structure; and
wherein the support structure has an axial pressure device on a second end face that is designed for axially pushing the outer rings together toward the support stricture front wall.