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:
Aug. 16, 1977
Filed:
Nov. 07, 1975
Kenji Miyake, Hiroshima, JA;
Hiroshi Kumon, Hiroshima, JA;
Yoshimaru Zitukane, Hiroshima, JA;
Shigeru Akutagawa, Hiroshima, JA;
Toyo Kogyo Co., Ltd., , JA;
Abstract
Sintering method which comprises two principal stages, which are a first stage wherein green compacts are sintered in a regular manner, and a second stage which immediately follows the first stage and wherein sintered compacts are held for a set time at a temperature which is elevated but is below sintering temperature and in carburizing gas, thereby diffusing required component into the compacts, for example carbon in the case of ferro-carbide compacts for use as sliding elements. Also according to the invention a sintering box may have formed therein holes of set size and distribution density thereby to permit efficient removal of lubricant if initially added to compacts.