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:
Apr. 21, 2015
Filed:
Jan. 06, 2012
Applicant:
Gary C. Ward, Saline, MI (US);
Inventor:
Gary C. Ward, Saline, MI (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M 3/04 (2006.01); B22D 17/22 (2006.01);
U.S. Cl.
CPC ...
B22D 17/2218 (2013.01);
Abstract
Systems and methods allow detection and location of die coolant leaks while a die is in a die cast machine and at operating temperature. The testing can be performed during normal down time of the die casting assembly and repeated as desired. Cooling circuits of the die can be tested in zones where zones are sorted to identify particular cooling circuits as having leaks as necessary. Valving, leak sensors, air decay units, and added machine control are provided in the die cooling system to enable onboard leak testing of the die while installed in the die casting machine.