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US 5,370,531 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 and accommodates a transporting means for transport an object to be heated along a predetermined transporting path. A includes a cylindrical portion for preventing the gas from flowing outside the oven, extends in 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 portion.
Claims5
An atmospheric oven, comprising:
- an oven body containing atmospheric gas maintained at a predetermined purity, accommodating a transport therein for transporting an object to be heated along a predetermined transport path, and having an oven entrance and an oven exit;
- passage walls defining passages extending a certain length from said oven entrance and said oven exit of said oven body for preventing the atmospheric gas from flowing out of said oven body, each said passage having a sectional area smaller than the sectional area of said oven body, and each said passage having a partition wall therein that is positionally adjustable according to the width of an object to be transported therethrough, said partition wall forming a gap with one of said passage walls;
- and
- a sealing member for sealing said gap between said partition wall and the one said passage wall of each said passage.
1 more element
Dependencies are inferred from the claim text.