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. 01, 1977
Filed:
Apr. 29, 1976
Hung-Chi Chao, Monroeville, PA (US);
United States Steel Corporation, Pittsburgh, PA (US);
Abstract
Superior densification of particulate material is achieved by the superimposition of an axial load on material under isostatic pressure. Such an axial load is imposed through the use of a floating plunger, eliminating the need for an external compacting plunger inserted through the isostatic compacting cylinder. This floating plunger is composed of two end sections, having different surface areas. One end section is acted on by the pressurized media, while the other end section (generally the smaller) coacts on the compact. Pressurization of the chamber with an isostatic media, thereby results in a stress along the vertical axis of the compact, which is different from the isostatic stress on the circumferential surface of the compact.