The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2009
Filed:
Aug. 25, 2004
Kiyobumi Kurita, Kanagawa, JP;
Noboru Sasaki, Aichi, JP;
Yukiharu Itakura, Aichi, JP;
Nippon Furnace Kogyo Kaisha, Ltd., Kanagawa, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
A small hot-air circulation furnace performs continuous treatment using hot air at a fixed temperature. Hot air supplied from a heat source is blown out from an axial-flow fan toward a hearth to form a circulating flow passing through an annular heating-target mount on the rotating hearth. The heating-targets are taken out one by one after increasing the temperature of the heating-target on the mount to a predetermined point during one rotation of the hearth. Further, a partition whose outlet-side opening θis narrower than the inlet-side opening θis provided inside the annular partition to supply part of high-temperature gas blown.