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:
Nov. 19, 1991
Filed:
Jan. 18, 1989
Robert N Revesz, Monroe, NC (US);
CEM Corporation, Matthews, NC (US);
Abstract
A container for an ashable material, to be ashed by heat in an ashing furnace, especially one heated by microwave radiation onto microwave absorptive elements thereof, comprises a heat resistant, walled container which is light weight, microwave transmissive and porous, and which is of quartz microfibers that are held in desired walled container form, preferably in substantially flat cylindrical form. Such a container is made by shaping a heat resistant, light weight, microwave transmissive and porous non-woven sheet of quartz microfibers to container form and heating and curing such sheet in such form, preferably after moistening it with water, whereby a form-retaining container results that can be successfully employed to hold ashable analytic samples during ashings thereof.