Fluid reaction surfaces (i.e. – impellers) – Perimetric blading extending axially between annular members
Reexamination Certificate
2008-09-02
2008-09-02
Look, Edward (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Perimetric blading extending axially between annular members
C416S18600A, C416S24100B, C222S368000
Reexamination Certificate
active
11212129
ABSTRACT:
A cellular wheel sluice for the feeding of hot bulk material with stabilization of the radial play between the web ends of the cellular wheel and the wall of the housing borehole by means of the combination of materials of different thermal expansion coefficients, whereby for stabilization of the radial play between the walls of the cellular wheel and the case wall its changes of diameter caused by heat are compensated. End strips used for sealing the gap, in their radial expansion, are fixed in a retention body with a low thermal expansion coefficient and therefore are always kept at a temperature-independent constant external diameter from the cellular wheel shaft.
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Destoop, T. et al., “Minimum Gas Leakage Through Rotary Feeders Used In Dense Phase Pneumatic Conveying Systems”, vol. 15, No. 1, Jan./Feb. 2003, Powder Handling and Processing.
Baker & Daniels LLP
Hanan Devin
Look Edward
Zeppelin Silos & Systems GmbH
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