Oxidation oven
AssigneeC.A. Litzler Co., Inc.
InventorsJames H. Rogers, Edward T. Albus, Philip S. Sprague, Richard J. Wimberger
Life of this patent
Estimating the term…
Abstract
An oxidation oven for use in the production of carbon fibers from a polyacrylonitrile precursor fiber. The oven has an oven chamber formed by sides and ends. At least one of the ends has a first opening and a second opening. The product passes through the openings for treatment in the oven chamber. The oven is also provided with a first nozzle adjacent the first opening and a second nozzle adjacent the second opening. Each nozzle is effective for discharging air from an air flow pathway into the oven chamber and forming an air curtain at the opening to which it is adjacent. An air bar defines the air flow pathway.
Claims30
An oven comprising,
- an oven chamber adapted to treat a fiber or web being passed therethrough, said oven chamber having a top, a bottom, two sides and two ends, at least one of said ends having a first opening and a second opening for said fiber or web to pass therethrough for treatment in said oven chamber, said first opening being disposed above said second opening, and
- a first nozzle adjacent said first opening, a second nozzle adjacent said second opening, each of said first and second nozzles being effective for discharging air from an air flow pathway into said oven chamber and forming an air curtain at the opening to which it is adjacent, said air curtains cooperating to substantially prevent a chimney effect between said first and second openings.
Dependencies are inferred from the claim text.