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:
Jul. 24, 1990
Filed:
Nov. 25, 1988
Tel Sagami Limited, Kanagawa, JP;
Abstract
A heat-treating apparatus comprises a heat-treating furnace which include a process tube arranged so as to set its longitudinal direction vertically and having inlet and exhaust ports for a reaction gas, a heater arranged around the process tube, a capping member for capping an opening for allowing an heat-treating object to be loaded therethrough, which is formed in the lower end of the process tube, a case for covering a portion between the process tube and the capping member, and an exhaust nozzle, coupled to the the exhaust port formed in the process tube, for introducing the exhaust waste gas to the outside of the heat-treating apparatus. An exhaust nozzle is arranged in the case so as to introduce the waste gas leaking from between the process tube and the capping member to the outside of the heat-treating apparatus, thereby preventing the leaked gas from being diffused around the heat-treating apparatus.