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US 3,940,118 AGranted
Blade lifter for installation inside a revolving drum
AssigneePolysius AG
InventorsOtto Heinemann, Rainer Philipp
Life of this patent
Estimating the term…
Abstract
The invention concerns a blade lifting member intended for installation inside a revolving drum and comprises a mounting plate for the scoop blade (lifting member) attached to the inner wall of the drum end of a curved blade shell extending from the mounting plate, the free rim of said blade forming a scoop edge pointing in the direction of rotation of the drum.
Claims11
A rigid blade lifting member for installation on a revolving drum comprising a mounting plate member for attachment to said drum to rotate therewith;
- and a blade shell joined at one end to and extending from said mounting member, said shell having at its other end a free rim forming a scoop edge, said shell being curved continuously from its one end to its other end, the radius of curvature of said shell from its one end to a point between its ends closer to said other end than to said one end being greater than the radius of curvature of said shell from said point to said other end.
Dependencies are inferred from the claim text.