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. 20, 1996
Filed:
Jul. 26, 1993
David T Doughty, Coraopolis, PA (US);
William J Knebel, Mars, PA (US);
John W Cobes, III, Oakdale, PA (US);
Calgon Carbon Corporation, Pittsburgh, PA (US);
Abstract
An activated carbon adsorbent for removing nosioux gases and vapors from a contaminated air stream, and method of making same. The activated carbon has impregnated therein at least one compound selected from each of three groups of compounds. The three groups of compounds comprise sulfuric acid and sulfuric acid salts; molybdenum compounds, and copper compounds and zinc compounds. The amount of at least one sulfuric acid or salt thereof compound present is up to 10% by sulfate, by weight, the one molybdenum compounds is present in amounts up to 10% by weight, as molybdenum, and the total amount of copper or zinc compounds present is a total amount not greater than 20% by weight as total copper and zinc. The disclose adsorbents are desirably used in universal filters.