Rotating rabbled roof drying and heating furnace

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4669977
SERIAL NO

06843674

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Apparatus for drying and heating wet particulate materials comprises a furnace with stationary circular hearth and sidewalls and a rotating roof. The hearth is perforated to receive hot gases from a plenum chamber below it, which gases are drawn off from the hearth through conduit openings out of its sidewalls, the major portion of the gases are externally heated, and are returned to the hearth through the plenum chamber. A feed bin is positioned on the roof at its center and through a conveyor feeds charged material onto the hearth through an opening in the roof near its outside edge. Rabbles are mounted in the roof to move the charge toward the center of the hearth as the roof rotates. From the center of the hearth a soaking pit extending through the plenum chamber discharges the heated material.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
TECHINT TECHNOLOGIES INC100 CORPORATE CENTER DRIVE CHERRINGTON CORPORATE CENTER CORAOPOLIS PA 15108

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Johnson, Beverly E Pittsburgh, PA 6 51
Solano, William E Pittsburgh, PA 4 9

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