Patent ID: 7419358

Claim:
A cellular wheel sluice for supplying hot bulk material, comprising: a housing having a housing wall; a cellular wheel in said housing, said wheel comprising: a shaft; a plurality of cellular wheel webs connected to said shaft and uniformly distributed peripherally about the shaft; a plurality of end strips respectively disposed on radial ends of said wheel webs, the radial extension of said strips defining a gap from the housing wall; said end strips being connected to and fixed with respect to their radial extensions by means of a retaining device at each axial end face of the end strips; the retaining devices being in the form of one of a ring-shaped flat material, a disk-shape flat material or a spoke-shaped flat material having a low coefficient of thermal expansion, whereby the radial extension of said end strips is held at a temperature independent constant external diameter with respect to said shaft and therefore a temperature independent constant spacing from said housing wall.