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:
Feb. 15, 1994
Filed:
Apr. 29, 1992
Ryoji Takagi, Nagaokyo, JP;
Abstract
The heat treatment system includes a plurality of small-sized heat treating furnaces, having uniform heat treatment periods which are controlled to start the heat treatments in the respective furnaces with constant time lags. A lifting device is provided in front of the furnaces for introducing and discharging the workpieces. The lifting device is provided with a plurality of arms which project toward the furnaces, for supporting the workpieces. Untreated workpieces are stored in a front pool device and carried toward the lifting device by a conveyor, so that the lifting device inserts the workpieces into the furnaces. The workpieces, upon being completely heat treated, are removed from the furnace, moved downward onto the conveyor, and carried to a back pool device by the lifting device. The above series of operations are controlled by a single control unit.