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US 6,481,361 B1Granted
Coal balancing damper
AssigneeRJM Corporation
InventorsEdmund S. Schindler, Robert W. Monro, Jr.
Life of this patent
Estimating the term…
Abstract
A damper assembly for adjusting a full flow of the air-entrained coal traversing at least one annular conduit along a flow path, wherein the one conduit has a peripheral wall defining the entire cross-sectional area of the conduit, the damper assembly includes an elongated blade, which has its length substantially greater than its width and which is rotatably mounted to the conduit to adjust the flow from no change to approximately 75% of the full flow.
Claims15
A method of installing a damper assembly for adjusting a flow of coal comprising the steps of:
- providing an opening in a peripheral wall of a conduit, the opening being sized to have its inner periphery slightly greater than an outer dimension of a flow controlling blade;
- attaching a mounting sleeve to the conduit such that the mounting sleeve surrounds the opening;
- attaching a nipple to the mounting sleeve;
- inserting an elongated flow controlling blade through the opening and into the conduit;
- traversing the conduit with the elongated flow controlling blade and the blade's longitudinal axis;
- and
- controllably rotating the nipple about a rotation axis relative to the mounting sleeve to rotatably displace the flow controlling blade for variably blocking the flow.
4 more elements
A damper assembly for adjusting a flow of coal, comprising:
- a conduit having an opening and having a peripheral wall;
- an elongated flow controlling blade inserted through said opening and across the coal flow rotatably mounted to said conduit, said blade having a thickness selected to present a minimal blocking of the flow of coal and a width selected that is substantially less than a cross sectional dimension of said conduit while blocking a substantial portion of the flow through said conduit when said blade is rotated to present the width against the flow, whereby said opening into said conduit can be minimized while enabling sufficient control over the flow through said conduit with a rotation of said blade to variably block the flow.
Dependencies are inferred from the claim text.