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. 13, 2007
Filed:
Jun. 14, 2005
Thierry Luc Alain Dannoux, Avon, FR;
Michael Fischer, Corning, NY (US);
Thomas Dale Ketcham, Big Flats, NY (US);
Kenneth Richard Miller, Addison, NY (US);
Robert John Paisley, Corning, NY (US);
Thierry Luc Alain Dannoux, Avon, FR;
Michael Fischer, Corning, NY (US);
Thomas Dale Ketcham, Big Flats, NY (US);
Kenneth Richard Miller, Addison, NY (US);
Robert John Paisley, Corning, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A method for forming honeycomb structures, such as wall-flow honeycomb filters, which utilizes extrusion of multiple material supplies at once. Such methods may be used to form intermittent plugs or other structures in the cell channels during the extrusion process, for example. A die assembly is provided which includes secondary feedholes machined in the pins for intermittently or periodically injecting secondary material (e.g., plug material) into the cell channels of the honeycomb structure while it is being extruded.