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. 13, 1993
Filed:
Feb. 04, 1992
Kazunari Sakata, Sagamihara, JP;
Abstract
A vertical type of heat-treating apparatus is provided with a housing that has an opening portion for the carrying in of an object to be processed to the front surface, a heat-treating furnace for performing the required heat-treatment to the object to be processed and which is provided inside the housing, a standby space for the standby of the objects to be processed and carried into the heat-treating apparatus which is provided underneath the heat-treating furnace, a cleaning air introduction opening provided to a lower portion of the housing, a feed path separated from the standby space and connected to the cleaning air introduction opening, a recirculation path which makes one portion of cleaning gas passed the standby space to flow once again to the standby space, and an air exhaust opening for the exhaust to outside the housing of cleaning air which passes through the standby space.