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:
Jun. 28, 2011
Filed:
Sep. 29, 2009
Applicants:
Ronald C. Aufderheide, Dublin, OH (US);
Ralph E. Showman, Galloway, OH (US);
Inventors:
Ronald C. Aufderheide, Dublin, OH (US);
Ralph E. Showman, Galloway, OH (US);
Assignee:
ASK Chemicals L.P., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D 29/00 (2006.01); B22D 27/00 (2006.01); B22D 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention relates to filters made from a refractory material, preferably an insulating material, and chemical binder. The filters are used in the foundry industry to filter molten metal. The invention also relates to a process for preparing the filters.