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. 23, 2021
Filed:
Jan. 11, 2018
Applicant:
Ha-international Llc, Westmont, IL (US);
Inventors:
Douglas M. Trinowski, Rochester Hills, MI (US);
Michael J Walker, Shelby Township, MI (US);
Assignee:
HA-INTERNATIONAL LLC, Westmont, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 1/18 (2006.01); B22C 3/00 (2006.01); B22C 9/10 (2006.01); B22D 29/00 (2006.01); B22C 1/00 (2006.01); B22C 1/02 (2006.01); B22C 9/00 (2006.01);
U.S. Cl.
CPC ...
B22C 1/188 (2013.01); B22C 1/00 (2013.01); B22C 1/02 (2013.01); B22C 1/186 (2013.01); B22C 3/00 (2013.01); B22C 9/00 (2013.01); B22C 9/10 (2013.01); B22D 29/002 (2013.01);
Abstract
'Lost' cores for use high pressure die casting, the cores preferably having a water-soluble synthetic ceramic aggregate having an appropriate strength and tolerance for various casting pressures and temperatures, an inorganic binder having sodium silicate, an additive having particulate amorphous silicon dioxide, and a refractory coating, wherein the cores have the capacity to be removed from a casting by dissolution with water.