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:
Jan. 22, 2013
Filed:
Feb. 12, 2009
Scott Allen Magno, South Lyon, MI (US);
Ralph Albert Dalla Betta, Mountainview, CA (US);
Bret Robert Armanini, Dublin, CA (US);
David R. Sheridan, Menlo Park, CA (US);
Scott Allen Magno, South Lyon, MI (US);
Ralph Albert Dalla Betta, Mountainview, CA (US);
Bret Robert Armanini, Dublin, CA (US);
David R. Sheridan, Menlo Park, CA (US);
International Engine Intellectual Property Company, LLC, Lisle, IL (US);
Abstract
Processes are provided for making partially coated monolith catalysts that are useful, for example, as pre-combustor catalysts for diesel exhaust aftertreatment. Monolith substrates are provided with interconnectivity and/or temporary barriers that allow from about 10 to about 90% of the monolith channels to be coated after the monolith substrate is assembled without having to carefully pick out among a large number of openings which ones to inject into or which ones to plug. The invention includes options of injecting into a multipath monolith substrate and of emplacing blocking material during monolith construction. Either catalyst coating material or coat-blocking material can be injected. Blocking materials allow the use of machinery for ordinarily non-selective processes, such as machinery for dip coating. Both multipath injections and pre-placed barriers can be used in a single partial coating process.