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US 10,246,827 B1Granted
Upper reel hood for through-air drying machine
AssigneeBrunn Air Systems, Inc.
InventorsJohn Kelyman, Anthony York
Life of this patent
Estimating the term…
Abstract
An upper reel hood in dust control system for the “dry” side of a through-air drying (TAD) papermaking system. The hood body has the general shape of a tapering trapezoidal pyramid, taller at one end than the other. The inlet of the hood body tapers inversely in height—broader where the hood body is shorter, and narrower where the hood body is taller in order to maintain uniform flow across the entire inlet. The hood body may be over 5 meters wide.
Claims11
A dust hood, comprising:
- a hood body that tapers down in height from a first end face toward a second end face, and includes a substantially vertical back face and an angled front face connected between the first and second end faces;
- an outlet in a bottom or back face of the hood body proximate to the first end face;
- an inlet provided in the angled front face of the hood body, the inlet increasing from a minimum height closest to the outlet to a maximum height farthest from the outlet, such that the inlet is broadest where the hood body is shortest and narrowest.
Dependencies are inferred from the claim text.