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US 5,443,382 AGranted
Atmospheric oven
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKoichi Tsurumi, Shinji Shimazaki, Koichi Kumagai
Life of this patent
Estimating the term…
Abstract
An atmospheric oven containing an atmospheric gas kept at a predetermined purity accommodates a transport for transporting an object to be heated along a predetermined transporting path. A rectangular sectioned tubular body for preventing the gas from flowing outside the oven extends a certain length from an entrance of the oven and an exit of the oven and has a sectional area necessary for passing the object through the tubular body.
Claims10
An atmospheric oven, comprising:
- an outer oven having side walls and an interior with upper and lower interior surfaces;
- a gas supply extending from one of said side walls of said outer oven for supplying a gas to said outer oven;
- a gas feeding fan disposed inside said outer oven adjacent to said gas supply for feeding supplied gas into said interior of said outer oven;
- an inner oven disposed in and in gaseous communication with said interior of said outer oven and spaced from said upper and lower interior surfaces of said outer oven so as to define spaces between said outer oven and said inner oven such that gas fed to said interior of said outer oven can be introduced into said inner oven, and wherein said inner oven has upper and lower walls having a plurality of holes formed therein for introducing gas fed by said gas feeding fan into said interior of said outer oven into said inner oven;
- a heater disposed between said outer oven and said inner oven for heating the gas supplied by said gas supply;
- and
- a transport extending through said inner oven for transporting an object along a transport path parallel with said side walls of said outer oven such that the object can be exposed to gas introduced into said inner oven.
4 more elements
Dependencies are inferred from the claim text.