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:
Apr. 18, 1995
Filed:
Nov. 02, 1993
Willard E Kemp, Houston, TX (US);
Kemp Development Corporation, Houston, TX (US);
Abstract
A method and apparatus for diffusion of elements into or out of small metallic particles, the apparatus consisting of a sealed retort 22 horizontally mounted on an axle 36 with the retort subtended in the interior of a heating device 11. Gas and pressure controls communicating through said axle 36 control the interior atmosphere of the retort 26. Small particles 23 to be modified are placed within the retort 22 and the retort is rotated and heated while maintaining the desired gaseous atmosphere. Rotation causes fluid-like tumbling of the particles resulting in uniform heat transfer, thorough mixing and engenders an exchange of ions between the surface and near surfaces of said particles and the atmosphere of said retort or between the particles and other material placed within said retort.